CN112373000B - Polytetrafluoroethylene protective clothing surface fabric processing equipment - Google Patents
Polytetrafluoroethylene protective clothing surface fabric processing equipmentInfo
- Publication number
- CN112373000B CN112373000B CN202011499905.XA CN202011499905A CN112373000B CN 112373000 B CN112373000 B CN 112373000B CN 202011499905 A CN202011499905 A CN 202011499905A CN 112373000 B CN112373000 B CN 112373000B
- Authority
- CN
- China
- Prior art keywords
- chain
- positioning block
- polytetrafluoroethylene
- frame
- base band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/08—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/08—Feeding of the material to be moulded, e.g. into a mould cavity of preforms to be moulded, e.g. tablets, fibre reinforced preforms, extruded ribbons, tubes or profiles; Manipulating means specially adapted for feeding preforms, e.g. supports conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/007—Narrow strips, e.g. ribbons, tapes, bands
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to the technical field of film stretching equipment, in particular to polytetrafluoroethylene protective clothing fabric processing equipment, which comprises a left frame and a right frame, wherein a left chain is arranged on the left frame, a right chain is arranged on the right frame, a right side part of the left chain and a left side part of the right chain are arranged at left and right intervals and form a travelling channel for polytetrafluoroethylene base bands to travel forwards at intervals, a left pressing positioning block capable of lifting is arranged on a chain link of the left chain, a left travelling bottom plate capable of travelling synchronously with the left chain and used for supporting the lower surface of the left side part of the polytetrafluoroethylene base bands and clamping the left side part of the polytetrafluoroethylene base bands by matching with the left pressing positioning block is also arranged on the left frame, a right travelling bottom plate capable of travelling synchronously with the right chain and used for supporting the lower surface of the right side part of the polytetrafluoroethylene base bands and clamping the right side part of the polytetrafluoroethylene base bands by matching with the right pressing positioning block is also arranged on the right frame, and the production efficiency is high.
Description
Technical Field
The invention relates to the technical field of film stretching equipment, in particular to polytetrafluoroethylene protective clothing fabric processing equipment.
Background
The polytetrafluoroethylene protective clothing fabric is a film product commonly used as one layer of protective clothing, namely a PTFE film, the existing methods for producing the film are carried out by adopting a method for stretching a raw material base band left and right in two directions, such as a bidirectional synchronous stretching device disclosed by the application number 201720460569.5, which belongs to the technical field of film stretching equipment, the bidirectional synchronous stretching device is arranged left and right symmetrically and comprises a base, two strip-shaped rails and a driving chain clamp, the strip-shaped rail is provided with a preheating section, a stretching section and a shaping section from front to back, and is characterized in that sliding rails matched with the preheating section and the shaping section are respectively arranged at the lower sides of two ends of the preheating section and the shaping section, the strip-shaped rail is provided with an inner side rail and an outer side rail, a transmission device is arranged between the inner side rail and the outer side rail, a speed regulating motor is arranged on the transmission device, a transmission chain clamp is fixed at the upper end of the transmission device, and the transmission chain clamp is connected with the inner side rail and the outer side rail in a sliding manner; the hinge of the stretching section and the shaping section is provided with a telescopic piece at the tail end of the shaping section.
The prior art has widely adopted a mode of forward advancing and stretching by clamping two sides of a driving chain clamp, but the driving chain clamp in the prior art adopts an M-shaped structure, only a film can be stretched, the film stretching operation can not be continuously performed, the clamp needs to be manually adjusted every time, the automation degree is not high, and the production efficiency is not enough.
Disclosure of Invention
The invention aims to provide polytetrafluoroethylene protective clothing fabric processing equipment with high production efficiency.
The technical aim of the invention is achieved through the following technical scheme that the polytetrafluoroethylene protective clothing fabric processing equipment comprises a left frame and a right frame, wherein a left chain which can travel back and forth between the front and the rear is arranged on the left frame, a right chain which can travel back and forth between the front and the rear is arranged on the right frame, a right side part of the left chain and a left side part of the right chain are arranged at intervals left and right to form a travel channel for polytetrafluoroethylene base bands to travel forward, a plurality of left compression positioning blocks which can travel together with the left chain and are used for being abutted against the upper surface of the left side part of the polytetrafluoroethylene base band and can be lifted, a left traveling bottom plate which can travel synchronously with the left chain and is used for supporting the lower surface of the left side part of the polytetrafluoroethylene base band and is matched with the left compression positioning blocks, a plurality of travel channels which can travel together with the right chain and are used for being abutted against the upper surface of the right side part of the polytetrafluoroethylene base band and are arranged on the links of the right side part of the right chain, and the polytetrafluoroethylene base band can travel synchronously under the condition that the polytetrafluoroethylene base band is supported by the right side part of the right side of the polytetrafluoroethylene base band.
Preferably, the distance between the left and right of at least one section of the travelling channel increases gradually from back to front.
As the optimization of the invention, the left chain is connected with a supporting frame which can walk along with the left chain, and the supporting frame is movably connected with the left compression positioning block.
As the preferable mode of the invention, a hanging support shaft which is used for the left compression positioning block to pass through and erect in the horizontal direction and is used for the left compression positioning block to swing up and down is connected to the support frame.
As the preference of the left frame, the left frame is provided with a steering chain wheel for the running and steering of the left chain at the front and rear steering positions of the left chain, the left frame is also provided with an upper swing guide plate for the left compression positioning block to swing upwards and support, the left compression positioning block is connected with an upwards extending guide column, the upper swing guide plate is in a flat shape, the side edge part of the upper swing guide plate forms an arc guide edge part for the side part of the guide column to contact and lean against, and the diameter of the arc guide edge part is larger than that of an arc path for the steering of the left chain.
As a preference for the present invention, the center of the arc guiding edge part and the center of the arc path of the left chain turning on the same side are on the same axis up and down.
Preferably, the guide post is cylindrical and is rotatably connected to the left pressing positioning block.
Preferably, in the present invention, the outer peripheral side surface of the arc-shaped guiding edge part is a circular arc-shaped curved surface.
Preferably, an elastic buffer device is connected between the guide post and the support frame.
Preferably, the left pressing positioning block has a cylindrical structure with an axial direction along a horizontal direction.
The invention has the beneficial effects that 1. The production continuity is strong, the coiled polytetrafluoroethylene baseband can be continuously discharged and stretched, and the automation operation is realized for clamping the polytetrafluoroethylene baseband;
2. the conveying effect is good, the stretching effect is also good, and the product quality is improved more;
3. Stable structure and safe and reliable operation.
Drawings
Fig. 1 is a schematic perspective view of the whole apparatus of embodiment 1;
fig. 2 is a schematic view of a portion of the structure of fig. 1 in a position for steering the rear upstream end of the left frame.
In the figure, 1, left frame, 2, right frame, 3, left chain, 4, right chain, 12, travel channel, a, left compression positioning block, b, left walking bottom plate, c, right compression positioning block, d, right walking bottom plate, e1, support frame, e2, suspension support shaft, f, steering sprocket, g, upper swing guide plate, e10, guide post, g1, arc guide edge part, 31, arc path, h and elastic buffer device.
Detailed Description
The following specific examples are intended to be illustrative of the invention and are not intended to be limiting, as modifications of the invention will be apparent to those skilled in the art upon reading the specification without inventive contribution thereto, and are intended to be protected by the patent law within the scope of the appended claims.
1-2, A polytetrafluoroethylene protective clothing fabric processing device comprises a left frame 1 and a right frame 2, wherein a left chain 3 which walks back and forth between the front and the rear is arranged on the left frame 1, a right chain 4 which walks back and forth between the front and the rear is arranged on the right frame 2, a right side part of the left chain 3 and a left side part of the right chain 4 are arranged at intervals left and right to form a traveling channel 12 for polytetrafluoroethylene base band to travel forward, the left chain 3 and the right chain 4 are of a preferable closed loop structure in a horizontal plane, similar to a runway, are of a conveying structure which is circularly reciprocated back and forth, are also of the prior art, and form two steering areas at the front end and the rear end of the traveling channel 12, wherein the rear end of the traveling channel 12 is taken as an upstream end, the front end of the traveling channel 12 is taken as a downstream end, the polytetrafluoroethylene base band is taken as a position for forming a thinner finished film after the polytetrafluoroethylene base band is stretched left and right, namely, the polytetrafluoroethylene base band is stretched to form a thinner finished film after the polytetrafluoroethylene base band is stretched, and the polytetrafluoroethylene base band is taken as a traveling channel for the front end of the finished product is stretched into a thinner finished film after the polytetrafluoroethylene base band is stretched into the front end of the base band. The structure of the left and right stretching polytetrafluoroethylene base band is designed in such a way that a plurality of left pressing positioning blocks a which are used for pressing the upper surface of the left side edge part of the polytetrafluoroethylene base band and can be lifted are arranged on the chain links of the left chain 3, the number of the left pressing positioning blocks a is proper around the whole left side chain, namely, the left pressing positioning blocks a are designed to be more than a few, so that a plurality of left pressing positioning blocks a can be pressed on the left side part of the polytetrafluoroethylene base band, of course, a left walking bottom flat plate b which can synchronously walk with the left chain 3 and is used for supporting the lower surface of the left side edge part of the polytetrafluoroethylene base band and clamping the left side edge part of the polytetrafluoroethylene base band by matching with the left pressing positioning blocks a is also arranged on the left frame 1, the left pressing positioning blocks a and the left walking bottom flat plate b can vertically press the left side edge part of the polytetrafluoroethylene base band, and the left side edge part of the polytetrafluoroethylene base band can be stretched by prolonging the distance between the left and right chains in the travelling process, the clamping structure which can follow the chain together can be continuously output in a coiled and stretched left and right stretching the polytetrafluoroethylene base band to form a film finished product, and the production efficiency can be greatly improved. In the same way, the structural design on the right frame can refer to the structure on the left side, the same structural design can be adopted, but the left side structure can keep a mirror symmetry mode as far as possible, so the right side has a corresponding structure, a plurality of right pressing positioning blocks c which are used for pressing the upper surface of the right side edge part of the polytetrafluoroethylene base band and can lift are arranged on the chain links of the right chain 4 and walk together with the right chain 4, a right walking bottom flat plate d which is used for supporting the lower surface of the right side edge part of the polytetrafluoroethylene base band and can walk synchronously with the right chain 4 and is matched with the right pressing positioning blocks c to clamp the right side edge part of the polytetrafluoroethylene base band is also arranged on the right frame 2, the right pressing positioning blocks c and the right walking bottom flat plate d clamp the right side edge part of the polytetrafluoroethylene base band up and down to carry and stretch, the left walking bottom plate b can be installed together with the left pressing positioning block a through a corresponding supporting structure, so that the left walking bottom plate b and the left pressing positioning block a can synchronously run, or a left lower chain positioned below the left chain 3 is installed on the left frame 1, the left walking bottom plate b can be installed on a chain link of the left lower chain, but the synchronism of the two chains needs to be ensured, as each chain is driven through two front and rear steering chain wheels f, one chain is connected to a motor shaft as a driving chain wheel, for example, the left chain 3 and the left lower chain are provided with the same-sized steering chain wheels f at the rear position and are arranged up and down, and then the synchronism of the two chains can be kept through being connected to the same motor or a motor shaft of other transmission equipment, so that the synchronism of the left walking bottom plate b and the left pressing positioning block a is ensured. The right side can mount the right walking bottom plate d with reference to the left side structure. The left pressing positioning block a is lifted up and down, because the left pressing positioning block a and the left walking bottom flat plate b cannot be clamped all the time, the number of the left pressing positioning block a and the left walking bottom flat plate b are preferably equal and are opposite up and down, one left pressing positioning block a and one left walking bottom flat plate b are used as a group, the height of the left walking bottom flat plate b in each group of the left pressing positioning block a and the left walking bottom flat plate b can be kept constant, but the left pressing positioning block a should be lifted up firstly when the left pressing positioning block a is at the rear end position of a travelling channel, and the polytetrafluoroethylene base band starts to enter at the moment, and the left pressing positioning block a can fall down to press the left side edge part of the base band only after entering a part of the left pressing positioning block a, so that automatic pressing can be realized, the left side part of the base band can not be damaged, the pressing state is always kept in the travelling process, and the left pressing positioning block a needs to be lifted up when the base band is required to be output at the downstream after being stretched into a film in the travelling, so that the film product can be smoothly output, in a simple way, the left pressing positioning block a can be turned to the two positions after the left pressing positioning block a 3 can be turned to the two positions, and the following structural design can be further described. And the right side structure is also the same, the right pressing positioning block c also needs to be capable of lifting, and the left pressing positioning block a on the left side is matched to synchronously lift and run, so that the left and right sides of the base band are better clamped, and the left and right sides of the base band are driven to be conveyed and stretched.
As described above, the conveying of the base band is performed by clamping the left and right edges of the base band by the left and right clamping structures, so that the stretching is relatively simple, that is, the distance between the traveling channels 12 is controlled, generally, only the distance between the left and right edges of at least one section of the traveling channels 12 is gradually increased forward, mainly, the distance between the right edge of the left chain and the left edge of the right chain is increased, and the chain is connected with the pressing positioning block, so that the distance between the left pressing positioning block a and the right pressing positioning block c is gradually increased, and the base band is stretched left and right.
The specific automatic lifting tightening operation is realized as follows, taking the left side as an example, because the right side is designed to be identical with the left side structure and is in mirror symmetry left and right:
The left chain 3 is connected with a support frame e1 which can walk along with the left chain 3, and the support frame e1 is movably connected with the left compression positioning block a. The support e1 can adopt different metal frame structures, and the support e1 is fixed on the side part of the chain link by a pin shaft, a bolt or direct welding and the like. The left pressing positioning block a is movably connected, namely, at least can move up and down, and can be lifted at the corresponding position. The support frame e1 is connected with a suspension support shaft e2 which is used for the left compression positioning block a to pass through in the horizontal direction and erect and is used for the left compression positioning block a to swing up and down, namely the support frame e1 is required to be fixedly connected with the suspension support shaft e2, the suspension support shaft e2 extends in the horizontal direction, the left compression positioning block a is provided with a corresponding shaft hole which is penetrated in the horizontal direction and sleeved on the suspension support shaft e2, when clamping, conveying and stretching are not carried out, the left compression positioning block a swings and lifts up to the right upper side so as not to clamp the left edge part of a polytetrafluoroethylene base band, when the middle section of a travelling channel is required to clamp the base band, the left compression positioning block a swings downwards to clamp the base band in cooperation with a left travelling bottom flat plate b for transportation and subsequent stretching, and the suspension support shaft e2 is equivalent to the shaft for the left compression positioning block a to swing up and down. In addition, the left walking bottom plate b can be directly installed and fixed on the support frame e1 and is positioned below the left pressing positioning block a, so that synchronous operation can be realized, and a chain is not needed to be additionally arranged for synchronously driving the left walking bottom plate b. Of course, these structures are necessary conditions for realizing the automatic lifting of the left pressing positioning block a, and a corresponding matching structure is also needed to enable the left pressing positioning block a to automatically lift, and certainly, the existing automatic control equipment can be used for controlling electric products such as an air cylinder, but in this way, a lot of installation parts are needed, and the supporting, steering and self space of a chain and the like cannot be well realized, so the following optimization scheme of the embodiment is more beneficial to realizing the automatic lifting function.
In the foregoing, it is also mentioned that the steering sprocket f is disposed at both front and rear steering positions of the left frame 1 on the left chain 3, and the left chain is tensioned and driven by the front and rear steering sprockets f. The embodiment has a more specific design, specifically, the left frame 1 is located above the left chain 3 and is further provided with an upper swing guide plate g for the left pressing positioning block a to swing upwards and support, the left frame 1 can be provided with a support rod to support the upper swing guide plate g, the left pressing positioning block a is connected with an upwardly extending guide post e10, the upper swing guide plate g is in a flat-type shape, a side part forms an arc guide edge part g1 for the side part of the guide post e10 to contact and lean against, the diameter of the arc guide edge part g1 is larger than the diameter of an arc path 31 for the left chain 3 to turn, basically, the upper swing guide plate g can be designed into a circular cake-shaped structure, and the diameter is larger than the diameter of an arc path 31 for the left chain 3 to turn, the diameter of the arc guide edge part g1 is also larger than the arc path 31 for the left chain 3, the left pressing positioning block a on the left and right non-turning sections is in a state from a lower position to a side, the left pressing positioning block a on the left non-turning section is in a state, the left pressing positioning block a is in a state of course, and the left pressing positioning block a is in a state of a vertical state when the left pressing guide block a is in a state and the left pressing section is in a state of a lower side of the left pressing position. When the left chain turns, the steering path of the guide post e10 is consistent with the arc path 31, but due to the design of the upper swing guide plate g, the guide post e10 is extruded and inclined from the vertical state to the periphery to be spread when touching the arc guide edge part g1 of the upper swing guide plate g in the steering process, and the lower part of the guide post e10 is lifted, so that the left compression positioning block a is driven to swing upwards, and after the steering is finished, the guide post e10 is not guided by the expansion of the outer support of the upper swing guide plate g, so that the left part of the base band can be clamped by matching with the left walking bottom plate b due to the gravity lower hem. Preferably, the center of the arc guiding edge g1 and the center of the arc path 31 of the left chain 3 on the same side are located on the same axis, so that the operation can be more stable, and of course, the lifting height is not very high, the lifting angle of the guiding post e10 is not very large, the swing amplitude is controlled within 30 degrees, and the left pressing positioning block a is lifted to be too high as far as possible, so long as the left pressing positioning block a can be separated from the upper surface of the left part of the base band basically.
The guiding column e10 may be directly and fixedly connected to the top of the left pressing positioning block a, but may be further optimized, the guiding column e10 is cylindrical and may be rotatably connected to the left pressing positioning block a, where the rotating direction is in a horizontal or nearly horizontal direction, and the axis extending direction of the guiding column e10 should keep the position locking with the left pressing positioning block a, and the guiding column e10 may rotate to perform rolling friction on the arc guiding edge g1 during steering, which is similar to the structure of a roller, so that the problems of insufficient smooth operation and high noise caused by fixed sliding friction are improved.
Preferably, the outer circumferential side surface of the arc-shaped guiding edge portion g1 is a circular arc-shaped curved surface, firstly, the path of the arc-shaped guiding edge portion g1 is preferably circular arc-shaped, and further, the side surface of the arc-shaped guiding edge portion g1 is designed into a curved surface structure arched towards the side of the circular arc, so that the structure is more optimized, mechanical abrasion is reduced, and running stability is improved.
In order to improve the stability of the swinging and falling actions of the left compression positioning block a, further, an elastic buffer device h is connected between the guide column e10 and the support frame e1, or a damping device is connected, a spring structure, or an air rod structure is adopted, so that mechanical impact is reduced, clamping and transportation can be better performed, and the elastic force of the elastic buffer device h is not too large, so that the use of the normal left compression positioning block a is not influenced.
The left pressing positioning block a is preferably made of more than 1 kilogram of steel blocks, but the left pressing positioning block a does not need to be more than 10 kilograms and can only realize relatively stable falling motion. As for the shape of the left pressing positioning block a, it may be a cylindrical structure with the axial direction along the horizontal direction. But more preferably, the left pressing positioning block a can be designed into an upright plate-shaped structure, the middle of the left pressing positioning block a is of a rectangular structure, the upper side and the lower side of the left pressing positioning block a form a semi-cylindrical structure and axially along the horizontal direction, corresponding shaft holes which are penetrated in the horizontal direction are formed in the front and the rear of the semi-cylindrical structure on the upper side of the left pressing positioning block a and are sleeved on the hanging support shaft e2, lateral connecting rods which transversely extend are fixed between the two ends of the hanging support shaft e2 and the supporting frames, the semi-cylindrical structure on the upper side of the left pressing positioning block a can be sleeved on the hanging support shaft e2 and can be limited, and the fixing mode of the connecting rods can be a detachable mode such as bolts, pin shafts and the like, so that the left pressing positioning block is convenient to disassemble and maintain.
The structure of the right pressing positioning block c on the right side and the connection structure for the upper swing and the lower swing of the right pressing positioning block c can adopt the structure of the left pressing positioning block a on the left side of the device and the connection structure for the upper swing and the lower swing of the left pressing positioning block a, so long as the structures are consistent and are in mirror symmetry.
The whole equipment is simpler to operate, the coiled polytetrafluoroethylene baseband is placed at the rear end steering position of the equipment, the machine is stopped in the initial time, a part of the baseband is pulled forward from a roller in the left-right direction along the axial direction to be used as a head section, the baseband is placed at the position where the left-right rear steering is ready to be conveyed forward, namely, the left walking bottom flat plate b and the right walking bottom flat plate d which are positioned near the rear end in the left side and the right side of a travelling channel, the left-right chain steering is not completed due to the initial section, the left compression positioning block a and the right compression positioning block c which are positioned at the position are lifted by the upper swinging table, the left walking bottom flat plate b and the right walking bottom flat plate d at the position are placed at the left side and the right side of the baseband, the equipment is started, the left walking bottom flat plate b and the right walking bottom flat plate d at the position support the baseband to be conveyed forward, the left pressing positioning block a and the right pressing positioning block c of the same group fall to press the base band immediately after turning, and then the left pressing positioning block a, the left walking bottom plate b, the right pressing positioning block c and the right walking bottom plate d of each group sequentially do the same actions from the base band to the base band, the actions are continuously performed, and then stretching in the advancing process can be performed in the area with the left-right spacing expansion of the advancing channel in front, of course, a plurality of heating devices are arranged in general equipment, the general equipment is also of a conventional design, the base band is conveniently stretched to form a film, the base band is conveyed to the downstream of the front end, and the film structure of the finished product is changed into the stretched film structure, namely the basic prototype of the polytetrafluoroethylene protective clothing fabric is changed, because the back is usually required to perform some better quality improvement treatment, and details are omitted. The whole process is more automatic and the efficiency is higher. The left pressing positioning block a and the left walking bottom plate b, the right pressing positioning block c and the right walking bottom plate d of each group which are conveyed forward to the downstream of the outlet are sequentially circulated back to carry out the operation flow of the next circle. The track of the movement is that the left chain runs anticlockwise and the right chain runs clockwise.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (6)
1. The polytetrafluoroethylene protective clothing fabric processing equipment is characterized by comprising a left frame (1) and a right frame (2), wherein a left chain (3) which walks back and forth between the front and the back is arranged on the left frame (1), a right chain (4) which walks back and forth between the front and the back is arranged on the right frame (2), a right side part of the left chain (3) and a left side part of the right chain (4) are arranged at left and right intervals to form a traveling channel (12) for polytetrafluoroethylene base band to travel forward, a plurality of left compression positioning blocks (a) which walk together with the left chain (3) and can be lifted are arranged on chain links of the left chain (3), a left bottom flat plate (b) which supports and cooperates with the lower surface of the left side part of the polytetrafluoroethylene base band and walks synchronously with the left chain (3) and clamps the left side edge part of the polytetrafluoroethylene base band, a plurality of left compression positioning blocks (a) which can be lifted and lowered together with the right side part of the polytetrafluoroethylene base band (4) are arranged on the upper chain links of the right chain (3), the right frame (2) is also provided with a right walking bottom plate (d) which can synchronously walk with a right chain (4) and is used for supporting the lower surface of the right side edge of the polytetrafluoroethylene baseband and clamping the right side edge of the polytetrafluoroethylene baseband by matching with the right compression positioning block (c);
the left chain (3) is connected with a support frame (e 1) which can walk along with the left chain (3), and the support frame (e 1) is movably connected with the left compression positioning block (a);
A suspension support shaft (e 2) for the left compression positioning block (a) to swing up and down is connected to the support frame (e 1) and used for the left compression positioning block (a) to penetrate through and erect in the horizontal direction;
The left frame (1) is positioned at the front and rear steering positions of the left chain (3) and is provided with a steering chain wheel (f) for the left chain (3) to run and steer, the left frame (1) is positioned above the left chain (3) and is also provided with an upper swing guide plate (g) for the left compression positioning block (a) to swing upwards and support, the left compression positioning block (a) is connected with a guide column (e 10) extending upwards, the upper swing guide plate (g) is in a flat shape, the side edge part of the upper swing guide plate forms an arc guide edge part (g 1) for the side part of the guide column (e 10) to contact and lean against, and the diameter of the arc guide edge part (g 1) is larger than the diameter of an arc path (31) for the left chain (3) to steer;
The circle center of the arc-shaped guiding edge part (g 1) and the circle center of the arc-shaped path (31) turned by the left chain (3) at the same side are positioned on the same axis up and down.
2. The polytetrafluoroethylene protective garment fabric processing apparatus according to claim 1, wherein the left-right spacing of at least one section of the travel path (12) increases gradually from back to front.
3. The polytetrafluoroethylene protective garment fabric processing apparatus according to claim 1, wherein the guide post (e 10) is cylindrical and rotatably connected to the left compression positioning block (a).
4. The polytetrafluoroethylene protective garment fabric processing apparatus according to claim 1, wherein the outer peripheral side surface of the arc-shaped guide edge portion (g 1) is a circular arc-shaped curved surface.
5. The polytetrafluoroethylene protective garment fabric processing apparatus according to claim 1, wherein an elastic buffer device (h) is connected between the guide post (e 10) and the support frame (e 1).
6. The polytetrafluoroethylene protective garment fabric processing apparatus according to claim 1 wherein the left compression positioning block (a) has a cylindrical structure with an axial direction along a horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011499905.XA CN112373000B (en) | 2020-12-17 | 2020-12-17 | Polytetrafluoroethylene protective clothing surface fabric processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011499905.XA CN112373000B (en) | 2020-12-17 | 2020-12-17 | Polytetrafluoroethylene protective clothing surface fabric processing equipment |
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| CN1256999A (en) * | 1998-12-14 | 2000-06-21 | 东丽株式会社 | Method and equipment for production of synthetic resin film |
| CN215203437U (en) * | 2020-12-17 | 2021-12-17 | 浙江赛迅环保科技有限公司 | Polytetrafluoroethylene protective clothing surface fabric processing equipment |
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| BE573406A (en) * | 1957-11-29 | |||
| JP2004106422A (en) * | 2002-09-19 | 2004-04-08 | Fuji Photo Film Co Ltd | Tenter apparatus |
| JPWO2008035762A1 (en) * | 2006-09-21 | 2010-01-28 | 旭化成ホームプロダクツ株式会社 | Method for producing polylactic acid film |
| JP5345191B2 (en) * | 2011-09-16 | 2013-11-20 | 富士フイルム株式会社 | Film stretching method and solution casting method |
| CN103240870A (en) * | 2013-05-17 | 2013-08-14 | 广州市普同实验分析仪器有限公司 | Synchronous bidirectional drawing machine for film |
| CN104210091A (en) * | 2013-05-31 | 2014-12-17 | 青岛华世洁环保科技有限公司 | Expanded rolling clamping system |
| CN205238557U (en) * | 2015-11-16 | 2016-05-18 | 湖南银丰塑料包装有限公司 | Easily tear PE membrane processingequipment |
| CN206718455U (en) * | 2017-04-28 | 2017-12-08 | 山东新达包装科技有限公司 | A kind of bi-directional synchronization stretching device |
| CN111120609B (en) * | 2020-03-30 | 2020-06-30 | 佛山市盟思拉伸机械有限公司 | Drive assembly of film stretching chain clamp and film stretching device |
| CN112065975B (en) * | 2020-08-21 | 2025-03-18 | 广东仕诚塑料机械有限公司 | A film transverse stretching fixture |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256999A (en) * | 1998-12-14 | 2000-06-21 | 东丽株式会社 | Method and equipment for production of synthetic resin film |
| CN215203437U (en) * | 2020-12-17 | 2021-12-17 | 浙江赛迅环保科技有限公司 | Polytetrafluoroethylene protective clothing surface fabric processing equipment |
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