TWI400158B - Container blow molding system and label holding core - Google Patents

Description

Blowing system for containers and label retaining core

The present invention relates to a blow molding system for a container for forming a blow molded container having a label on its side, and a label retaining core for use in a blow molding system for the container.

A blow molding system in which a blow-molded container having a label on its side is formed is known (refer to Patent Documents 1 to 3).

In such a blow molding system, the label is inserted into the blow mold in advance, and then the pre-embryo (shaped embryo) is inserted into the blow mold, and the air is supplied to the parison in the blow mold. The shaped container is blown to form.

[Patent Document 1] Japanese Laid-Open Patent Publication No. Hei No. Hei. No. Hei. No. Hei.

In recent years, it has been required to have a high gas barrier property for a blow-molded container. Therefore, a blow molded container should have a gas barrier label, and further requires that such a label be wound around the side of the blow molded container. week.

However, it is not easy to insert and hold a single-piece label having a length sufficient to cover the entire circumference of the side of the container in a blowing mold composed of left and right split molds, which has the side of the blow-molded container. A forming system for a blow-molded container that is covered by a weekly label has not been developed.

On the other hand, in the publication of Japanese Patent Laid-Open No. Hei 5-338018, a method of forming a single label that has been previously attached to a cylinder in a mold and then refilling the pre-embryo therein is proposed. However, the procedure for forming the cylinder label is necessary, and the procedure for inserting the pre-embroid in the mold after opening the label is complicated. Moreover, in this way, the area where the label can be attached is limited, and it is impossible to cover the entire area of the cylinder.

The present invention has been made in view of such a problem, and an object thereof is to provide a blow molding container which can easily and surely form a blow molded container having a label covering a full circumference of a side surface including a height direction of a container. The system and the label hold the core.

The present invention includes: a rotary table that holds a plurality of blowing molds and is rotatable, and a label holding core that winds up and holds a label and supplies the label to a blowing mold of the rotary table, and holds the pre-embryo while An air blow-in device that is fitted to a blow mold of a turntable and supplies a pre-embroid to a pre-embryo holding supply unit in a blow mold, and a pre-embryo holding supply unit that is fitted into a blow mold of a turntable And a blow mold closing device for closing the pre-embryo holding portion and the blow mold holding the pre-embryo, and the label holding core is formed by a cylindrical body insertable into the blow mold. On one side of the side surface of the cylindrical body, there is provided a concave-shaped portion which is recessed toward the inner side for receiving the both end portions of the label as a characteristic blow molding system.

The present invention is applied to the side surface of the label holding core, and is provided with a pair of small cylindrical portions forming recesses as a blow molding system for the characteristic container.

The present invention is a blow molding system in which a absorbing portion of a label is formed on a side surface of a label holding core as a characteristic container.

According to the present invention, a pre-embryo forming portion for forming a pre-embryo is provided on the upstream side of the turntable, and the pre-embroid formed in the pre-embryo forming portion is blown by the pre-embryo holding supply portion to the rotary table. The mold is used as a blow molding system for the characteristic container.

The present invention provides a blow molding system in which a gate material cut portion for cutting a precast blank is cut between a preform forming portion and a turntable.

According to the present invention, a pre-embryo cooling portion for cooling a pre-embroid is provided between the pre-embryo forming portion and the gate cutting portion, and a blow molding system as a characteristic container is provided.

According to the present invention, a pre-embryo heating portion for heating a pre-embryo is provided between the preform forming portion and the rotary table as a blow molding system for a characteristic container.

According to the present invention, the label holding core is held by a supply table that is rotatable and rotatable close to the rotary table, and a label forming supply portion that is formed and supplied with a label is disposed on the opposite side of the rotary table of the supply table as a feature. The blow molding system of the container.

In the present invention, the label forming and supplying unit has a label cutting unit that cuts the label roll to form a label, and a label supply unit that supplies the formed label to the label holding core of the supply table. The blow molding system of the container.

According to the present invention, in the label cutting unit, the label roll material conveyed in the horizontal direction is subjected to a slit, and secondly, the label is cut in the direction orthogonal to the conveyance direction to form a label disposed in the horizontal direction, and the label supply unit is attached. There is a blow molding system in which a label is held in a horizontal direction, and a label pivoting mechanism that supports the receiving portion and pivots the label in a vertical direction and is supplied to the label holding core.

According to the present invention, a absorbing portion for absorbing a label is provided on the inner surface of the blow mold as a blow molding system for a characteristic container.

The present invention, in which a blow mold is a blow molding system that can be heated and temperature-regulated as a characteristic container.

According to the present invention, in the label holding core, the interposer retaining core pedestal is provided on the supply stage, and the supply stage is located at a supply position at which the label is supplied from the label forming supply unit to the outer periphery of the label holding core, and is held in the label. The label holding the outer circumference of the core is transferred to the transfer position held in the blowing mold of the rotary table as a blow molding system for the characteristic container.

According to the present invention, in the vicinity of the supply position of the supply table, the central portion of the label that presses the central portion of the label supplied from the label forming and supplying unit against the outer periphery of the label holding core, and the central pressing member provided on the label are provided. On both sides, a pair of winding rollers that wind the label around the outer periphery of the label holding core while moving around the outer periphery of the label as a characteristic container are used as a blow molding system.

According to the present invention, the label holding core is a portion facing the central pressing member of the label, and is provided with a label front end pressing member that presses the leading end portion of the label against the label holding core to blow the container as a characteristic container. Forming system.

The invention, wherein the label central pressing member, a pair of winding rollers, and the label The front end pressing member is a lifting platform that is held in a freely movable manner, and a positioning opening is provided in the label holding core pedestal, and a positioning pin inserted in the positioning opening is provided on the lifting platform to form a blow molding system as a characteristic container. .

According to the present invention, in which the label retains the core pedestal, the clip positioning positioning member is movable relative to the supply table, and the label holding core pedestal is provided with a positioning opening, which is provided in the vicinity of the transfer position of the supply table, freely movable: with insertion a positioning plate for positioning pins in the positioning opening, wherein the positioning plate is provided with: a positioning roller that abuts against the outer circumference of the blowing mold and determines the position of the positioning plate for the blowing mold, and is used as a characteristic container to blow shape system.

According to the present invention, in which the front end of the positioning pin is tapered, and the positioning pin is inserted into the positioning opening, the label holds the core holder to move toward the supply table and positions the labeling core of the blowing mold to form a shape of the container. system.

According to the present invention, the positioning plate is a blow molding system which is a container of the characteristics by pressing the pressing means toward the side of the blowing mold.

The present invention relates to a label holding core for holding a label and inserted into a blow mold, which is formed by a cylindrical body that can be freely inserted into a blow mold, and is provided on one side of a side surface of the cylindrical body. A concave portion that is immersed in the inner side and receives both end portions of the label serves as a characteristic label holding core.

The present invention is provided on the side surface of the label holding core, and is provided with a pair of small cylindrical portions forming recesses as a characteristic label holding core.

According to the present invention, a absorbing portion for absorbing a label is formed on a side surface of the label holding core, and the label retaining core is characterized.

According to the invention as described above, since the label holding core is formed with the concave portion receiving the both end portions of the label, the label having a long circumferential length can be inserted into the blowing mold. Therefore, it is possible to easily and surely use a label having a relatively long circumferential length to form a blow-molded container covering substantially the entire circumference.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 through Fig. 10 are views showing an embodiment of a blow molding system and a label holding core of a container according to the present invention.

First, the outline of the blow molding container formed by the blow molding system of the container and the blow molding system will be described with reference to Figs. 1 and 9 (a) and (b).

As shown in Fig. 1 and Fig. 9 (a) and (b), the blow molded container 1 is formed by biaxially extending blow molding, and has a container body 2 and a side surface of the container body 2 Label 3 for the entire week.

At this time, as shown in Fig. 9(a), the label 3 is wound around the side surface of the container body 2 substantially over the entire circumference, and almost no gap is provided between the both end portions of the label 3.

In this manner, since the side surface of the container body 2 can be covered substantially by the entire circumference of the container body 2, the gas barrier property of the entire blow molded container 1 can be improved by using the label 3 having a high gas barrier property.

Further, the blow-molded container 1 shown in Fig. 9(a) has a label 3 covering the entire circumference of the side surface of the container body 2, but the blow-molded container 1 shown in the comparative example of Fig. 9(b) In the middle, the label 3 does not cover the entire circumference of the side surface of the container body 2, and a large gap is formed between the both end portions of the label 3.

The container body 2 of the blow-molded container 1 shown in Fig. 9(a) is formed by biaxially stretching and blowing to obtain a preform made of PP. Further, the label 3 is made of an OPP/Al/heat seal OPP having a heat sealable OPP as a bonding surface.

Next, the outline of the blow molding method of the blow molding system of the container according to the present invention will be described with reference to Figs. 1(a) and 1(e). First, as shown in Fig. 1(a), in the pre-embryo forming portion 15 having the pre-embryo forming molds 15a and 15b, the pre-embryo 2a made of PP is molded.

The pre-embroid 2a formed in the pre-embryonic forming portion 15 is secondarily held by the pre-embryo holding body 41. The pre-embryo holding body 41 is held and carried by the carrier 42. At this time, the pre-embryo holding body 41 and the carrier 42 constitute the pre-embry holding portion 19 (second drawing).

The pre-embryo holding body 41 holding the pre-embroid 2a is transported by the transport body 42 to the heating unit 18, and the pre-embroid 2a is heated by the heating unit 18 (Fig. 1(b)).

Then, the blow mold 40 is lowered in the blow-molded portion 12 with respect to the pre-embryo 2a held by the pre-embryoid holder 41, and the pre-embryonic holder 41 is inserted into the blow mold 40. At this time, in the blow mold 40, the label 3 is supplied in advance by the label holding core 20 which will be described later (Fig. 1(c)).

Then, as shown in Fig. 1(d), the air blowing device 43 is raised from the lower side to approach the pre-embryo holding body 41 inserted into the blowing mold 40 at the position of the blow forming portion 12. In this manner, the air blowing device 43 is coupled to the pre-embryo holding body 41, and air is supplied from the air blowing device 43 into the pre-embroid 2a, so that the pre-embroid 2a is expanded in the blowing mold 40 by the supplied air. The blow molded container 1 is formed. At this time, in the blowing mold 40, the blow-molded container 1 formed of the container body 2 formed from the pre-embroid 2a and the label 3 wound around the entire circumference of the side surface of the container body 2 is formed by biaxial stretching. Forming.

Next, the blow mold 40 is lifted from the pre-embryo holding body 41, and thus the blow-molded container 1 having the label 3 on the pre-embryonic holder 41 is obtained (Fig. 1(e)).

Next, the blow molding system 10 of the container according to the present invention will be described in detail by means of Fig. 2.

The blow molding system 10 of the container is provided with a rotary table 11 for holding the plurality of blow molds 40 and rotatably, and a label holding core 20 for taking up and holding the label 3 and the label 3 is supplied into the blowing mold 40 of the rotary table 11 and the pre-embryo holding body 41 for holding the pre-embroid 2a and fitting it in the blowing mold 40 at the position of the blow forming portion 12 of the rotary table 11 and The pre-embroid 2a is supplied into the blowing mold 40, and the air blowing device 43 is connectable to the pre-embryo holding body 41 fitted in the blowing mold 40 at the position of the blow forming portion 12 of the rotary table 11. .

Further, on the upstream side of the turntable 11, a pre-embryo forming portion 15 formed of pre-embryo forming molds 15a and 15b for forming one pair of pre-embroids 2a is provided. On the downstream side of the pre-embroid forming portion 15, a pre-embryo cooling portion 16 for cooling the pre-embroid 2a formed by the pre-embry forming portion 15 and a portion to be cooled by the pre-embryo cooling portion 16 are sequentially provided. The gate material of the pre-embroid 2a is cut by the gate material cutting portion 17.

The pre-embroid 2a cooled by the pre-embryo cooling unit 16 and cut by the gate material at the gate material cutting portion is held by the pre-embryoid holder 41, and the pre-embryonic body 41 is transported by the pre-embryo holding body 41. The body 42 is transported to the heating unit 18. Further, the pre-embryo holding body 41 and the carrier 42 constitute a pre-embryo holding portion 19.

The pre-embroid 2a held by the pre-embryoid holder 41 is conveyed to the heating unit 18, and is heated in the heating unit 18. Then, the pre-embryo holding body 41 holding the pre-embroid 2a is carried to the rotary table 11.

Further, the holding blow mold 40 held by the turntable 11 is conveyed in accordance with the rotation of the turntable 11, and the label 3 held by the label holding core 20 is supplied into the blow mold 40.

That is, a rotary table 11 that is rotatable close to the supply table 13 is provided, and the label holding core 20 is held by the supply table 13. Further, on the side opposite to the turntable 11 of the supply table 13, a label forming supply unit 21 that molds and supplies the label 3 is disposed.

Next, the supply table 13 holding the label holding core 20 and the label forming supply unit 21 will be described with reference to FIGS. 3 and 4.

The supply table 13 is provided close to the turntable 11, and a label forming supply unit 21 for molding and supplying the label 3 is provided on the opposite side of the turntable 11 of the supply table 13.

The label forming supply unit 21 includes a label roll supply unit 28 that supplies the label roll member 22, and a guide roller 31 that guides the label roll unit 22 supplied from the label roll supply unit 28. And a slit formed on the downstream side of the guide roller 31 and placed in the conveying direction on the label roll 22 to form a plurality of elongated, for example, a cutter 23 forming four strip-shaped label webs 22, and The label cutting portion 24 for molding the label 3 is formed on the downstream side of the cutter 23 to cut the label roll member 22.

Further, on the downstream side of the label cutting portion 24, a nip roller 33 for holding the label roll member 22 is provided, and under the label cutting portion 24 and the nip roller 33, a label cutting portion 24 is provided. The receiving portion 25 of the formed label 3. By selecting the label cutting blade of the label cutting portion 24, the wavy or zigzag-shaped label 3 can be formed.

Further, the receiving portion 25 is pivoted by a lever (pivoting mechanism) 26 (one end pivoted and rocked), and the label 3 held in the horizontal direction can be raised in the vertical direction. That is, the lever 26 is rotatably attached to the moving body 27 that is movably held in the width direction by the base portion 35, so that the receiving portion 25 of the receiving tag 3 can be pivoted from the horizontal position to the vertical position.

Among these, the label supply unit is constituted by the movable body 27, the lever 26, and the receiving portion 25 on the base portion 35, and the label forming portion is constituted by the nip roller 33 and the label cutting portion 24.

Further, a label holding core 20 is attached to the supply table 13, and the label holding core 20 is provided on one side of the supply table 13 and four on the other side of the supply table 13, for a total of eight. Further, the label holding core 20 on one side of the supply table 13 and the label holding core 20 on the other side can be separated from each other by the air cylinder 32.

Further, when a long label having a peripheral length of from about 360° to more than 360° is attached, the label holding core 20 is formed of a substantially cylindrical body as shown in Figs. 8 and 10 on the side of the cylindrical body. One side is recessed toward the inner side and a recess 20d that receives both end portions 3a of the tag 3 is formed.

That is, a pair of small cylindrical portions 20b and 20c are provided on the side surface of the label holding core 20, and a concave portion 20d for receiving both end portions 3a of the label 3 is formed between the pair of small cylindrical portions 20b and 20c. . Further, a suction portion (suction hole) 20a for absorbing and holding the label is provided on the side surface of the label holding core 20.

As described above, since the concave portion 20d that receives the both end portions 3a of the label 3 is formed on the side surface of the label holding core 20, the label 3 can be wound around the label so that both end portions 3a thereof enter the concave portion 20d. The side of the core 20 is maintained. Therefore, the label holding core 20 can be made to wind the relatively long label 3 in the circumferential direction as compared with the case where the recess 20d is not provided.

Further, when the label 3 is shorter than the outer circumferential length of the label holding core 20 by 180° or more and less than 360° (there is a gap of about 0 to 5 mm), the outer peripheral portion may be provided with a suction hole. The cylinder of 20f is also used as the label holding core 20 (Fig. 11 (a) (b)).

Next, the blowing mold 40 held by the rotary table 11 will be described with reference to Figs. 5 to 7 .

As shown in Figs. 5 to 7, a two-to four-group blowing mold 40 is provided on the rotary table 11, and each group is formed by four blowing molds 40. Further, in the fifth to seventh figures, it is shown that four groups are provided. Further, the group of the blow molds formed by the four blow molds 40 is disposed at intervals of 90° in the case of four sets of blow molds. Further, in the case of blowing the molds in two groups, they are arranged at intervals of 180°.

Further, the blowing mold 40 provided on the turntable 11 is held by the holding plate 53 every four groups. In other words, the holding plate 53 of each of the blowing molds 40 is held in the vertical direction by the cylinder 50 with respect to the rotary table 11, and four blowing molds are attached to the holding plate 51 of one holding plate 53. 40.

Further, a base portion 55 is provided below the turntable 11, and the turntable 11 is rotated by a servo motor 48 provided on the base portion 55.

Further, in Fig. 5, the right side of the turntable 11 is the blow forming portion 12, and the left side of the turntable 11 is inserted into the label 3 of the label holding core 20 wound around the supply table 13. The transfer portion 13b in the mold 40 is formed. Moreover, the side opposite to the transfer part 13b of the supply stage 13 is the supply part 13a which supplies the label 3 to the label holding core 20 (refer FIG. 4).

As shown in Fig. 5, an air blowing device 43 is provided in a portion of the base portion 55 corresponding to the blow forming portion 12, and a compressed air blowing port 43a is provided in the air blowing device 43.

Further, the base portion 55 is provided with an extension rod 45 that penetrates the air blowing device 43, and the extension rod 45 is movable in the vertical direction by the elevating cylinder 45a attached to the base portion 55. The extension rod 45 is inserted into the holding preform 2a held in the blowing mold 40, and the preform 2a is pressed against the blowing mold 40 at the time of blow molding.

Further, as shown in Fig. 7, the blow mold 40 has a cylindrical side mold 40a and a bottom mold 40c. Further, the pre-embryo holding body 41 holding the pre-embroid 2a is formed so as to be fitted to the side mold 40a of the blow mold 40 and the blow mold closing device 140, so that the pre-embryo 2a is supported by the pre-embryo holding body 41. And the blowing mold closing device 140 provided outside the pre-embroid holder 41 is sandwiched.

Further, in Fig. 7, in the blowing mold 40, the extending rod 45 is raised from the lower side toward the upper side, and the pre-embroid 2a is pressed against the undersold mold 40c of the blowing mold 40. Further, the entire blow mold 40 is heated to perform temperature adjustment.

Next, the action of this embodiment formed by such a configuration will be described.

As shown in Fig. 2, the pre-embroid 2a is formed in the pre-embroid forming portion 15 having the pair of pre-embryo forming molds 15a and 15b.

The pre-embroid 2a formed in the pre-embroid forming portion 15 is cooled in the pre-embroid cooling portion 16.

Next, the pre-embroid 2a is sent to the gate material cutting unit 17 to cut the gate material.

The pre-embroid 2a which is cooled in the pre-embroid cooling section 16 and then cut by the gate material in the gate material cutting section is held by the pre-embryonic support 41, and the pre-embryonic support 41 is carried by the carrier 42 is transported to the heating unit 18.

The pre-embroid 2a held by the pre-embroid holder 41 is transported to the heating unit 18, and the heating unit 18 is heated. Then, the pre-embryo holding body 41 holding the pre-embroid 2a is conveyed to the turntable 11.

In the meantime, the blowing mold 40 held by the turntable 11 is conveyed in accordance with the rotation of the turntable 11, and the label 3 held by the label holding core 20 is supplied into the blowing mold 40.

Next, the action of forming the label 3 and supplying the label 3 into the blowing mold 40 will be described.

First, as shown in FIGS. 3 and 4, in the label forming supply unit 21, the label 3 is formed, and the thus formed label 3 is supplied to the label holding core 20 side.

In the third and fourth figures, the label roll material 22 is supplied from the label roll supply unit 28 of the label forming supply unit 21, and the label roll 22 supplied from the label roll supply unit 28 is attached. The guide roller 31 is fed to the side of the cutter 23 provided on the downstream side of the guide roller 31. The label roll 22 is attached to the cutter 23, and a slit is formed in the conveyance direction to form a plurality of elongated ones, for example, four strip-shaped label rolls 22 are formed. The tape-shaped label roll 22 is thereafter cut by the label cutting portion 24 provided on the downstream side of the cutter 23 to form the label 3. Further, at this time, the label roll cylinder 22 is held by the nip roller 33 at the tip end.

Next, in the label cutting portion 24, the label roll material 22 is cut by the formed label 3, and is received by the receiving portion 25 provided under the label cutting portion 24 and the nip roller 33.

Next, the moving body 27 holding each of the receiving portions 25 is moved in the width direction and the receiving portion 25 is expanded in the width direction, and secondly, the receiving portion 25 is pivoted by 90° and the label 3 extending in the conveying direction is changed in orientation. Configured in the width direction.

Next, the label 3 on the receiving portion 25 is pivoted by a lever (pivoting mechanism) 26, and the orientation is changed from the horizontal direction to the vertical direction.

In this manner, the orientation of the label 3 is changed from the horizontal direction to the vertical direction by the receiving portion 25, whereby the label 3 is wound around the outer circumference of the four label holding cores 20 that are placed in advance at the supply position of the supply table 13.

At this time, since the absorbing portion 20a is provided on the outer circumference of the label holding core 20, the label 3 is sucked and held by the absorbing portion 20a of the label holding core 20.

Further, as described above, a pair of small cylindrical portions 20b and 20c are provided on the side surface of the label holding core 20, and both end portions 3a of the receiving label 3 are formed between the pair of small cylindrical portions 20b and 20c. The recess 20d.

In this manner, since the concave portion 20d that receives the both end portions 3a of the label 3 is formed on the side surface of the label holding core 20, the label 3 can be wound in such a manner that the both end portions 3a thereof enter the concave portion 20d. The label holds the side of the core 20. Therefore, the label holding core 20 can be made to wind the relatively long label 3 in the circumferential direction as compared with the case where the recess 20d is not provided.

Next, the supply table 13 is rotated by 180°, and the four label holding cores 20 located at the supply position 13a of the supply table 13 are sent to the transfer position 13b of the supply table 13, and in this transfer position 13b, the label holding core is held. The 20 held label 3 is inserted and transferred into the blowing mold 40.

That is, the four blowing molds 40 held by the rotary table 11 are waiting for the transfer device 13b. When the label holding core 20 comes to the transfer position 13b, the blow mold 40 is lowered toward the label holding core 20 side by the cylinder 50 provided on the rotary table 11, and the label 3 held by the label holding core 20 is inserted into In the blowing mold 40, the label 3 is transferred from the label holding core 20 to the blowing mold 40 by simultaneously or sequentially performing the suction of the label holding core and the suction in the blowing mold 40.

At this time, the label 3 is sucked and held by the suction hole or the suction slit provided on the inner surface of the blow mold 40, or a combination thereof.

Further, as described above, the label holding core 20 can hold the label 3 having a relatively long circumferential length. Therefore, it is easy and sure to insert a label having a relatively long circumferential length into the blowing mold 40, and the label 3 covers the entire circumference of the blow-molded container 1.

Next, the rotary table 11 is pivoted by the servo motor 48 to bring the blow mold 40 to the blow molding portion 12 side. At this time, a pre-embryo holding body 41 that holds the pre-embroid 2a is disposed below the blowing mold 40. Then, the blow mold 40 is lowered toward the pre-embroid holder 41, and the pre-embryo holding body 41 is fitted to the air blowing device 43 provided in the portion where the shaped portion 12 is blown in the corresponding base portion 55.

Next, compressed air is supplied from the compressed air blowing port 43a provided in the air blowing device 43 to the pre-embroid 2a.

As described above, the base portion 55 is provided with the extension rod 45 penetrating the air blowing device 43, and the compressed air is supplied into the pre-embroid 2a while the extension rod 45 is moved upward by the elevating cylinder 45a attached to the base portion 55. The extension rod 45 that moves upward is inserted into the holding preform 2a held in the blowing mold 40, and the pre-embroid 2a is pressed against the blowing mold 40.

In this manner, the blow-molded container 1 composed of the container body 2 having the label 3 on the outer side of the side of the blow mold 40 is obtained by biaxially stretching and blowing.

In the present embodiment, the label 3 held by the label holding core 20 can be inserted into the blowing mold 40, and the label holding core 20 is provided with the concave portion 20d that receives the both end portions 3a, 3a of the label 3, so that it can be A label 3 having a relatively long circumferential length is inserted into the blowing mold 40. Therefore, the substantially full circumference of the blow molded container 1 can be covered by the label 3 having a long circumferential length.

Next, the winding mechanism for winding the label 3 conveyed to the receiving portion 25 of the label forming supply unit 21 to the outer periphery of the label holding core 20 disposed on the supply table 13 is shown in FIG. 3 and FIG. And detailed in Figure 13.

As shown in FIG. 3, FIG. 12, and FIG. 13, the label 3 conveyed to the receiving portion 25 of the label forming supply portion 21 is wound around the label holding core 20 disposed on the supply table 13. The periphery.

At this time, the receiving portion 25 is oriented by the lever 26, and is changed from the horizontal direction to the vertical direction. Further, the label holding core 20 is placed on the supply table 13 by the interposer label holding core holder 65. Further, the tag holding core pedestal 65 is a member for supporting the fixed tag holding core 20, and the positioning table 66 can be moved by the positioning loader 66 to finely adjust its position.

Further, the supply table 13 is located so that the label 3 can be supplied from the label forming supply unit 21 to the supply position 13a of the outer periphery of the label holding core 20, and the label 3 held on the outer circumference of the label holding core 20 can be transferred to the holder 3 The transfer position 13b in the blow mold 40 of the turntable 11 (please refer to FIG. 4).

Further, as shown in Figs. 12 and 13, a lifting table 60 that can be lifted and lowered is provided in the vicinity of the supply position 13a of the supply table. Further, the elevating table 60 is provided with a label central pressing member 61 that presses the central portion of the supplied label 3 from the receiving portion 25 to the outer periphery of the label holding core 20, and is disposed on both sides of the label central pressing member 61. While the outer circumference of the label holding core 20 is moved, the label 3 is wound around the pair of winding rollers 62a and 62b on the outer circumference of the label holding core 20. Further, in the elevating table 60, the label holding core 20 is a portion facing the label central pressing member 61, and is provided with a label front end pressing member that presses both end portions (front end portions) of the label 3 against the label holding core 20. 63.

The label central pressing member 61, the pair of winding rollers 62a and 62b, and the label leading end pressing member 63 are provided on the lifting table 60 to drive the cylinders 61S, 62S, and 63S, respectively, and drive the cylinders. 61S, 62S, and 63S are each driven separately.

Further, the label holding core holder 65 and the positioning loader 66 can lift and lower the supply table 13 by driving the air cylinder 66S. Further, a positioning opening 65a is provided in the label holding core pedestal 65, and a positioning pin 64 having a tapered shape at the lower end 64a and insertable into the positioning opening 65a is attached to the lifting table 60.

In Fig. 12 and Fig. 13, when the supply table 13 reaches the supply position 13a, the label holding core pedestal 65, which is first located at the position of Fig. 12(a), is driven by the driving cylinder 66S to rise to Fig. 12 ( b) Location.

Next, the receiving portion 25 to which the label 3 is attached is rotated by 90° by the lever 26 so as to be changed from the horizontal direction to the vertical direction, so that the label 3 positioned on the receiving portion 25 abuts against the outer circumference of the label holding core 20. Further, the receiving portion 25 has a pair of suction portions 25a and 25b, and the label 3 is sucked and held by the pair of suction portions 25a and 25b.

Next, the lifting table 60 is lowered, and the positioning pin 64 of the lifting table 60 is inserted into the positioning opening 65a of the label holding core pedestal 65. The label holding core pedestal 65 is positioned to move the feeding unit 13 slightly to the feeding table 13, The signature holding core pedestal 65 correctly positions the supply table 13 and the lifting table 60.

At this time, the label central presser 61 and the pair of winding rollers 62a and 62b are located in the space 25c between the pair of suction portions 25a and 25b.

Next, the label central pressing member 61 is driven by the driving cylinder 61S and presses the central portion of the label 3 against the outer circumference of the label holding core 20.

Then, the suction of the pair of absorbing portions 25a and 25b is stopped, and the entire receiving portion 25 is rotated by 90° by the lever 26, and is separated from the label holding core 20 to return to the original position.

Next, the pair of winding rollers 62a, 62b are driven by the driving cylinder 62S to move along the outer circumference of the label holding core 20, during which the label 3 is wound around the label holding core by a pair of winding rollers 62a, 62b. 20 weeks. Then, the label leading end pressing member 63 is driven by the driving cylinder 63S to press the leading end portion of the label 3 against the label holding core 20. Then, the label 3 is slidly held by the outer circumference of the label holding core 20, and the pair of winding rollers 62a, 62b are returned to the original position by driving the cylinder 62S, and the label central pressing member 61 and the label leading end pressing member 63 are used by The drive cylinders 61S, 63S are separated from the label holding core 20. The shape of the label front end pressing member 63 can be appropriately selected. The label holding core having the recess 20d as shown in Fig. 10 is formed into a triangular prism shape suitable for press fitting.

Next, the lifting table 60 is raised back to the original position, and the label retains the core pedestal 65 down to its original position.

In this manner, the label 3 positioned on the receiving portion 25 can be accurately and surely wound around the outer circumference of the label holding core 20.

Next, a mechanism for positioning the label holding core 20 with the blowing mold 40 will be described in detail with reference to FIGS. 5, 14 and 15. As shown in Fig. 5, Fig. 14, and Fig. 15, the label holding core 20 around which the label 3 is wound is inserted into the blowing mold 40.

At this time, the label holding core 20 is placed on the supply table 13 by sandwiching the label holding core holder 65. Further, the label holding core holder 65 is for supporting the fixed label holding core 20, and can move and finely adjust the position of the supply table 13 through the positioning loader 66.

Further, the supply table 13 is provided with a supply position 13a that allows the label 3 to be supplied from the label forming supply unit 21 to the outer periphery of the label holding core 20, and the label 3 held on the outer circumference of the label holding core 20 to be transferred to the holding The transfer position 13b in the blowing mold 40 of the turntable 11 (please refer to FIG. 4).

As shown in Figs. 14 and 15, a positioning plate 72 that can be lifted and lowered is provided in the vicinity of the transfer position 13b of the supply table 13. Further, the label holding core holder 65 has a positioning opening 65a, and the positioning plate 72 is provided with a pair of positioning pins 73a, 73b inserted into the positioning opening 65a, and the lower end 73 of each positioning pin 73a, 73b is tapered. shape.

Further, the positioning plate 72 is provided with a pair of positioning rollers 71a and 71b that are in contact with the outer circumference of the blowing mold 40 and determine the position of the positioning plate 72 with respect to the blowing mold 40.

Further, the positioning plate 72 is pressed toward the blow mold 40 side by driving the air cylinder 72S.

In Figs. 14 and 15, when the supply table 13 comes to the transfer position 13b, the blow mold 40 is first lowered. Next, the positioning plate 72 is driven by the driving cylinder 72S so that the pair of positioning rollers 71a and 71b abut against the outer circumference of the blowing mold 40. In this manner, the position of the positioning plate 72 is determined with respect to the blowing mold 40.

Next, the label holding core pedestal 65 and the positioning loader 66 are driven by the driving cylinder 66S to rise. At this time, the positioning pins 73a, 73b of the positioning plate 72 are inserted into the positioning opening 65a of the label holding core pedestal 65, and the label holding core pedestal 65 is positioned to move the feeding table 13 slightly, so that the label holding core 20 is blown. The mold 40 is positioned.

In this manner, the label holding core 20 can be accurately positioned with respect to the blowing mold 40, whereby the label 3 held on the outer circumference of the label holding core 20 can be accurately inserted into the blowing mold 40.

1. . . Blow molded container

2. . . Container body

2a. . . Preembryo

3. . . label

3a. . . Ends

3b. . . Overlapping part

4. . . Stage difference

5. . . Opening

6. . . Open shoulder

7. . . Peripheral side

10. . . Container blow molding system

11. . . Rotary table

12. . . Blowing into a shape

13. . . Supply station

13a. . . Supply location

13b. . . Transfer position

15. . . Pre-embryo forming

15a, 15b. . . Pre-embryo forming mold

16. . . Pre-embryo cooling unit

17. . . Gate material cutting section

18. . . Heating department

20. . . Label retention core

20a. . . Sucking department

20b, 20c. . . Small cylinder

20d. . . Concave

20e. . . Cylinder label retaining core

20f. . . Label suction hole

twenty one. . . Label forming supply unit

twenty two. . . Label roll

twenty three. . . Cutting Machine

twenty four. . . Label cutting section

25. . . Undertaking department

25a, 25b. . . Sucking department

25c‧‧‧ space

26‧‧‧Leverage

40‧‧‧Blowing mould

41‧‧‧ Pre-embryo holding body

42‧‧‧Transport

43‧‧‧Air blowing device

50‧‧‧ cylinder

51‧‧‧ Keeping rod

53‧‧‧Maintenance board

55‧‧‧ base

60‧‧‧ lifting platform

61‧‧‧ Label central pressing parts

61S~63S, 65S, 66S, 72S‧‧‧ drive cylinder

62a, 62b‧‧‧ winding roller

63‧‧‧ Label front end press

64‧‧‧Locating pins

65‧‧‧ Label retaining core pedestal

65a‧‧‧ Positioning opening

66‧‧‧ Positioning Loader

71a, 71b‧‧‧ positioning roller

72‧‧‧ Positioning board

73a, 73b‧‧‧ locating pin

140‧‧‧Blowing mold closing device

Fig. 1 (a) to (e) are schematic views of a blow molding system of a container according to the present invention.

Figure 2 is a general plan view of the blow molding system of the container according to the present invention.

Fig. 3 is a side view showing a supply stage for holding a label holding core and a label forming supply unit.

Fig. 4 is a plan view showing a supply stage for holding a label holding core and a label forming supply unit.

Fig. 5 is a side view of the rotary table holding the blow mold.

Figure 6 is a plan view of a rotary table holding a blow mold.

Figure 7 is a side cross-sectional view of the blow mold.

Figure 8 is a perspective view of the label holding core

Fig. 9 (a) and (b) are side sectional views of the blow molded container.

Figure 10 is a cross-sectional view of the label retaining core of Figure 8.

Fig. 11(a) is a perspective view showing a modification of the label holding core, and Fig. 11(b) is a sectional view thereof.

Fig. 12 (a) and (b) are side views of a mechanism for winding a label around the outer circumference of the label holding core.

Fig. 13 is a cross-sectional view taken along line A-A of Fig. 12(b) showing a mechanism for winding a label around the outer circumference of the label holding core.

Fig. 14 (a) and (b) are side views of the mechanism for positioning the label holding core to the blowing mold.

Figure 15 is a plan view of the mechanism by which the label retaining core positions the blow mold.

1. . . Blow molded container

2. . . Container body

2a. . . Preembryo

3. . . label

12. . . Blowing into a shape

15a, 15b. . . Pre-embryo forming mold

15. . . Pre-embryo forming

18. . . Heating department

40. . . Blowing mold

41. . . Pre-embryo holding body

42. . . Carrier

43. . . Air blowing device

Claims (22)

A blow molding system for a container, comprising: a rotary table that holds a plurality of blow molds and is rotatable, and a label holder that winds up and holds the label and feeds the label into the blow mold of the rotary table a core, and a pre-embryo holding portion fitted to the blowing mold of the rotary table and supplying the pre-embroid to the blowing mold, and a pre-embryo in the blowing mold fitted to the rotary table, while holding the pre-embryo An air blowing device that holds the supply unit and a blowing mold closing device that molds the pre-embryo holding unit that holds the pre-embroidery and the blowing mold, and the label holding core is freely insertable and blown The cylindrical body in the mold is formed, and on one side of the side surface of the cylindrical body, a concave portion that is recessed toward the inside to receive both end portions of the label is provided. A blow molding system for a container according to claim 1, wherein a pair of small cylindrical portions forming a concave portion are provided on a side surface of the label holding core. A blow molding system for a container according to claim 1, wherein a suction portion for absorbing the label is formed on a side surface of the label holding core. The blow molding system of the container of claim 1, wherein a pre-embryo forming portion for forming a pre-embryo is provided on an upstream side of the rotary table, and the pre-embryo formed in the pre-embryo forming portion is The pre-embryo holding supply unit is conveyed to the blowing mold of the turntable. A blow molding system for a container according to claim 4, wherein a gate cut portion for cutting the gate material of the pre-embryo is provided between the preform forming portion and the turntable. A blow molding system for a container according to claim 5, wherein a pre-embryo cooling portion for cooling the pre-embryo is provided between the pre-embryo forming portion and the gate cut portion. A blow molding system for a container according to claim 4, wherein a pre-embryo heating portion for heating the pre-embryo is provided between the pre-embryo forming portion and the rotary table. A blow molding system for a container according to claim 1, wherein the label holding core is held by a supply table that is rotatable and rotatable close to the rotary table, and is disposed on the opposite side of the rotary table of the supply table. A label forming supply portion that is formed and supplied with a label. The blow molding system of the container of claim 8 wherein the label forming supply unit has a label cutting portion that cuts the label roll to form a label, and supplies the formed label to the supply table. The label holds the label supply portion of the core. The blow molding system of the container of the ninth aspect of the invention, wherein the label cutting unit cuts the label roll material conveyed in the horizontal direction to form a label disposed in the horizontal direction, and the label supply unit There is provided a receiving portion that holds the label in the horizontal direction, and a label pivoting mechanism that supports the receiving portion and pivots to raise the label in the vertical direction and feed the label holding core. A blow molding system for a container according to claim 1, wherein a suction portion for absorbing a label is provided on an inner surface of the blow mold. A blow molding system for a container according to claim 1, wherein the blow mold is heated to adjust the temperature. A blow molding system for a container according to the eighth aspect of the invention, wherein the label holding core is a sandwich label holding core holder provided on the supply table, and the supply table is configured to: supply the label from the label forming supply unit to the label The supply position of the outer circumference of the core is maintained, and the label held on the outer circumference of the label holding core is transferred to the transfer position held in the blowing mold of the rotary table. The blow molding system of the container of claim 13 wherein the center of the label supplied from the label forming and supplying unit is pressed against the outer periphery of the label holding core in the vicinity of the supply position of the supply table. The label central pressing member and the both sides of the central pressing member of the label move around the label holding core, and the label is wound around a pair of winding rollers on the outer circumference of the label holding core. The blow molding system of the container of claim 14, wherein the portion of the label holding core facing the central pressing member of the label is provided in a freely movable manner: the front end portion of the label is pressed against the label holding core The front end of the label is pressed. The blow molding system of the container of claim 15 wherein the label central pressing member, the pair of winding rollers, and the label front end pressing member are held on the lifting platform freely, and the label retaining the core pedestal Positioning opening is provided and is provided on the lifting platform A locating pin that is inserted into the locating opening. The blow molding system of the container of claim 13, wherein the label holding core holder is capable of moving relative to the supply table, and the label holding core holder is provided with a positioning opening for movement on the supply table. A positioning plate having a positioning pin inserted into the positioning opening is disposed in the vicinity of the loading position, and the positioning plate is provided with: abutting on the outer circumference of the blowing mold, and determining the position of the positioning plate for the blowing mold Roller. The blow molding system of the container of claim 17 , wherein the front end of the positioning pin is tapered, and when the positioning pin is inserted into the positioning opening, the label holds the core pedestal to move the feeding table and label the blowing mold The positioning of the core. A blow molding system for a container according to claim 17, wherein the positioning plate is pressed toward the blowing mold side by a pressing means. A label holding core, which is a label holding core inserted in a blowing mold, is characterized in that it is formed by a cylindrical body that is freely inserted into a blowing mold, on the side of the cylindrical body On one side, there is a recess that is recessed toward the inside and receives both ends of the label. A label holding core according to claim 20, wherein a pair of small cylindrical portions forming a concave portion are provided on a side surface of the label holding core. A label holding core according to claim 20, wherein a absorbing portion for absorbing the label is formed on a side of the label holding core.