CN107138720A - Device and method for quantitatively weighing molten metal - Google Patents

Abstract

The present invention provides a device and method for quantitatively weighing molten metal. The device comprises a bracket, a balance plate movably mounted on the bracket via a rotating shaft, a pouring bucket movably mounted at one end of the balance plate, a weight storage box mounted at the other end of the balance plate, and a pouring bucket drive mechanism connected to the pouring bucket. The pouring bucket is eccentrically mounted on the balance plate via the rotating shaft, with its center of gravity located outside the balance plate. The pouring bucket drive mechanism includes a positioning assembly for limiting the pouring bucket from tilting and a trigger assembly for releasing the limit assembly. The present invention has the beneficial effects of accurately and quantitatively weighing molten metal, improving work efficiency, enhancing casting quality, and conserving materials.

Description

A device and method for quantitatively weighing molten metal

technical field

The patent of the invention relates to the technical field of metallurgical equipment manufacturing, in particular to a device and method for quantitatively weighing molten metal.

Background technique

In the metallurgical industry, after the ore is mined, it must be smelted in a high-temperature furnace to obtain the required alloy liquid, and then pour the alloy liquid into the mold. When the amount of poured alloy liquid is low, the solution cannot be obtained in the mold cavity. Feeding can easily lead to shrinkage, porosity and shrinkage cavities, forming casting defects. When the amount of poured alloy liquid is high, it is easy to cause waste of alloy liquid. Therefore, quantitative weighing of molten metal liquid is important for improving the quality of castings, saving resources and protecting the environment. has important practical significance. In addition, many metallurgical factories and scientific research institutes often calculate the ingredients when smelting alloys, such as the preparation of aluminum alloys. When the alloy liquid is degassed and slag removed, part of the alloy will be lost.

Therefore, accurate and quantitative weighing in the metallurgical industry is an urgent problem to be solved in the casting process of alloy liquid, which has important practical significance for improving work efficiency, improving casting quality and saving materials.

Contents of the invention

The purpose of the patent of the present invention is to provide a device and method for quantitatively weighing molten metal. When pouring molten metal, it can realize instant pouring and quantitative weighing of molten metal, improve work efficiency, improve casting quality and save materials.

The patent of the present invention adopts the following technical solutions: a device for quantitatively weighing molten metal, including a support, a balance plate movably arranged on the support through a rotating shaft, a pouring barrel movably arranged at one end of the balance plate, and a The weight storage box at the other end of the balance plate and the pouring barrel drive mechanism connected with the pouring barrel;

The pouring barrel is eccentrically arranged on the balance plate through the rotating shaft, and the center of gravity of the pouring barrel is located outside the balance plate;

The pouring barrel drive mechanism includes a positioning assembly for limiting the turning of the pouring barrel and a trigger assembly for releasing the limiting assembly.

The positioning assembly includes a positioning gear vertically arranged on the balance plate, a fixed rod and a sliding rod engaged with both sides of the positioning gear, and one end of the fixed rod and the sliding rod is provided with a The other end of the fixed rod is fixedly connected with the pouring barrel, the balance plate is provided with a limit chute used in conjunction with the sliding rod, and the upper end surface of the other end of the sliding rod A gear rod is provided, and a tension spring is arranged between the sliding rod and the limiting chute at one end of the gear rod.

The trigger assembly includes a rotating rod whose middle part is movably arranged on the balance plate, one end of the rotating rod is against the outside of the gear lever, and the other end of the rotating rod is provided with a receiving box, which is close to the weight storage box The balance plate at one end is provided with a metal ball release groove through a support rod, the outlet of the metal ball release groove is located directly above the receiving box, and a metal ball is placed in the metal ball release groove.

It also includes a limit assembly for limiting the rotation angle of the balance board; the limit assembly includes a gear and a U-shaped limit rod fixedly connected with the gear, and the other end of the U-shaped limit rod can be against the The lower end surface of the balance board; the bracket is provided with a gear groove meshing with the gear.

Both sides of the balance board are provided with counterweight storage boxes.

The pouring barrel is arranged on the balance plate through a support frame, and a torsion spring is also arranged between the pouring barrel and the support frame.

In order to better realize the purpose of the foregoing invention, the present invention also provides a method for quantitative weighing of molten metal, said method comprising:

Step S1: Make the balance board in a horizontal position by placing counterweights in the counterweight storage boxes at both ends of the balance board; obtain the weight of the prefabricated casting, and place an equal weight on one end of the balance board according to the weight of the prefabricated casting The weights are placed in the box, the balance plate is tilted, and the pouring bucket is hinged and positioned on the balance plate;

Step S2: pour the molten metal into the positioned pouring barrel. When the weight of the molten metal gradually increases until the balance plate tilts in the opposite direction, the pouring barrel eccentrically set on the edge of the balance plate will be released and placed under its own gravity Under the action of rotation, the molten metal in the pouring barrel is poured into the mold.

Wherein, the step S2 is specifically:

Step S201: When the weight of the molten metal increases until the balance plate tilts in the opposite direction, the sliding rod is held by one end of the rotating rod and cannot move, so that the arc gear at the other end of the sliding rod meshes with the positioning gear, and the other side of the positioning gear The engaged fixed rods overcome the torque force generated by the pouring bucket to maintain balance;

Step S202: When the weight of the molten metal gradually increases to the point where the balance plate tilts in the opposite direction, the metal ball release groove tilts, and the metal balls in the groove are released naturally, rolling from the initial end of the release groove to terminal and dropped into the socket at one end of the rotating rod;

Step S203: The receiving box moves downward under the gravity of the metal ball, the other end of the rotating rod moves upward under the action of the lever and releases the sliding rod, and the sliding rod moves under the drive of the tension spring and breaks away from the position of meshing with the arc gear The gear, the fixed rod meshed with the positioning gear is released; the pouring bucket fixedly connected with the fixed rod rotates under the action of its own gravity.

The method also includes:

Step S3: After the molten metal in the pouring barrel is emptied, the torsion spring under the pouring barrel overcomes the self-weight of the pouring barrel to drive the pouring barrel to reset.

The beneficial effects of the patent of the present invention are: the patent of the present invention can quantitatively weigh molten metal, achieve instant quantitative weighing and instant pouring, which can not only save time, avoid cutting and processing alloys before smelting, but also prevent excessive pouring of molten metal and Insufficient filling in the mold achieves precise and economical casting of the alloy solution. Finally, the device structure of the present invention is simple and light, easy to disassemble and easy to operate, and can be used for quantitative weighing and pouring of molten metal in different situations.

Description of drawings

Fig. 1 is a structural schematic diagram of patent embodiment 1 and embodiment 2 of the present invention.

Fig. 2 is a partially enlarged view of part A in Fig. 1 .

Fig. 3 is a partially enlarged view of part B in Fig. 1 .

Fig. 4 is a partially enlarged view of part C in Fig. 1 .

FIG. 5 is a schematic structural diagram of the sliding rod in Embodiment 1 of the present invention.

Wherein, the reference signs are: 1. bracket; 2. balance board; 3. pouring barrel; 4. metal ball release groove; 5. weight storage box; 6. counterweight storage box; 7. fixed rod; 8, positioning gear; 9, sliding rod; 10, retaining rod; 11, receiving box; 12, rotating rod; 13, tension spring; 14, gear; 15, U-shaped limit rod.

detailed description

In order to illustrate the technical features of the solution more clearly, the solution will be described below through specific implementation modes.

Example 1

The embodiment of the present invention provides a device for quantitatively weighing molten metal, as shown in Figure 1 and Figure 5, comprising a bracket 1, a balance plate 2 movably arranged on the bracket 1 through a rotating shaft, and a balance plate 2 movably arranged on the balance plate 2 The pouring barrel 3 at one end, the weight holding box 5 arranged at the other end of the balance plate 2, and the pouring barrel driving mechanism connected to the pouring barrel 3; the pouring barrel 3 is used to receive molten metal in an external ladle or crucible, The rotating shaft is eccentrically arranged on the balance board 2 , and its center of gravity is located outside the balance board 2 . The pouring barrel drive mechanism includes a positioning assembly for limiting the turning of the pouring barrel 3 and a trigger assembly for releasing the limiting assembly.

2 and 3, the positioning assembly includes a positioning gear 8 vertically arranged on the balance board 2, a fixed rod 7 and a sliding rod 9 meshing with both sides of the positioning gear 8, and one end of the fixed rod 7 and the sliding rod 9 is provided with a The arc-shaped rack meshed with the positioning gear 8, the other end of the fixed rod 7 is fixedly connected with the pouring barrel 3, the balance plate 2 is provided with a limit chute used in conjunction with the sliding rod 9, and the upper end surface of the other end of the sliding rod 9 is provided with The gear lever 10 is located between the sliding rod 9 at one end of the gear lever 10 and the limit chute, and a tension spring 13 is arranged.

The trigger assembly includes a rotating rod 12 that is movable in the middle and is arranged on the balance board. One end of the rotating rod 12 is against the outside of the gear rod 10. The other end of the rotating rod 12 is provided with a receiving box 11. The balance board near the weight storage box 5 is supported by a The rod is provided with a metal ball release groove 4, the outlet of the metal ball release groove 4 is located directly above the receiving box 11, and a metal ball is placed in the metal ball release groove 4. Wherein, the retaining rod 10 and the rotating rod 12 are both cylindrical, so that the retaining rod 10 and the rotating rod 12 are in point contact to reduce friction; The metal ball will start to roll only when it is tilted to a certain angle, reducing the possibility of the metal ball falling by mistake due to balance adjustment or other operations before use.

Referring to Fig. 4, the device also includes a limiting assembly for limiting the rotation angle of the balance board 2; the limiting assembly includes a gear 14 and a U-shaped limiting rod 15 fixedly connected with the gear 14 (or a gear 14 set on the circular surface There is a square groove matched with the end of the U-shaped limit rod 15, the U-shaped limit rod 15 is inserted into the square groove of the gear 14), and the other end of the U-shaped limit rod 15 can be against the bottom of the balance board 2 End face; the bracket 1 is provided with a gear groove meshing with the gear 14 (it can be seen but not marked in FIG. 4 ). When the balance board 2 rotates at a certain angle, it touches the U-shaped limit rod 15, and the U-shaped limit rod 15 stops rotating, preventing the balance board 2 from rotating at an excessive angle and causing liquid splashing; The position of the type limit rod 15, and then indirectly adjust the rotation angle of the balance board 2.

Both sides of the balance board 2 are provided with a counterweight holding box 6 for containing the counterweight; firstly adjust the balance of the balance board through the counterweight, and then place weights to measure the weight of the molten metal according to the principle of leverage.

The pouring barrel 3 is set on the balance plate 2 through a support frame, and a torsion spring is also arranged between the pouring barrel 3 and the support frame. Reset; Wherein, the setting height of pouring barrel 3 is higher than the height of molten metal liquid, avoids that metal ball does not fall into receiving box 11 before balance plate 2 tilts and spills molten metal liquid in advance.

The working process of the device for quantitatively weighing molten metal is:

By placing counterweights in the counterweight holding boxes 6 at both ends of the balance board 2, the balance board 2 is placed in a horizontal position; the weight of the prefabricated casting is obtained, and equal weights are placed on the balance board 2 according to the weight of the prefabricated casting The weight at one end is placed in the box 5, the balance board 2 is tilted, and the pouring bucket 3 is hingedly positioned on the balance board 2;

The molten metal is poured into the positioned pouring barrel 3. When the weight of the molten metal increases until the balance plate 2 tilts in reverse, the stop rod 10 at one end of the sliding rod 9 is held against by the end of the rotating rod 12 and cannot move, so that The arc gear at the other end of the sliding rod 9 meshes with the positioning gear 8, and the fixed rod 7 meshing with the other side of the positioning gear 8 overcomes the torque generated by the pouring barrel to maintain balance;

When the weight of the molten metal gradually increases to the point where the balance plate 2 is tilted in the opposite direction, the metal ball release groove 4 is tilted, and the metal balls in the groove are released naturally. to the terminal and drop into the receiving box 11 at one end of the rotating rod 12;

The receiving box 11 moves downward under the gravity of the metal ball, the other end of the rotating rod 12 moves upward under the action of the lever and releases the sliding rod 9, the sliding rod 9 moves under the drive of the tension spring 13 and disengages from the engagement with the arc gear The positioning gear 8, the fixed rod 7 meshed with the positioning gear 8 is released; the pouring barrel 3 fixedly connected with the fixed rod 7 rotates under the action of its own gravity, and the molten metal in the pouring barrel 3 is poured into the mould;

After the molten metal in the pouring barrel 3 is emptied, the torsion spring under the pouring barrel 3 overcomes the weight of the pouring barrel to drive the pouring barrel 3 to reset. After pouring, clean up the equipment, manually pull the gear lever 10 and use the rotating rod 12 to hold against the gear lever 10; put the metal ball back into the initial end of the metal ball release groove;

Once the process of quantitative weighing of molten metal is completed and the device is completely reset, repeat the above operations to complete the next pouring.

Example 2

An embodiment of the present invention provides a method for quantitative weighing of molten metal, the method comprising:

Step S1: By placing counterweights in the counterweight holding boxes 6 at both ends of the balance board 2, the balance board 2 is placed in a horizontal position; the weight of the prefabricated casting is obtained, and an equal weight is placed on the The weight at one end of the balance board 2 is placed in the box 5, the balance board 2 is tilted, and the pouring bucket 3 is hingedly positioned on the balance board 2;

Step S2: Pouring the molten metal into the positioned pouring barrel 3, when the weight of the molten metal gradually increases until the balance plate 2 tilts in the opposite direction, the pouring barrel 3 eccentrically arranged on the edge of the balance plate 2 will be released And rotate under the action of its own gravity, the molten metal in the pouring barrel is poured into the mold;

Step S3: When the molten metal in the pouring barrel 3 is emptied, the torsion spring under the pouring barrel 3 overcomes the weight of the pouring barrel to drive the pouring barrel 3 to reset.

Wherein, step S2 is specifically:

Step S201: When the weight of the molten metal increases until the balance plate 2 tilts in the opposite direction, the gear lever 10 at one end of the sliding rod 9 is held against by the rotating rod 12 and cannot move, so that the arc gear at the other end of the sliding rod 9 is aligned with the positioning The gear 8 meshes, and the fixed rod 7 that is meshed with the other side of the positioning gear 8 overcomes the torque force produced by the pouring bucket to maintain balance; For point contact, reduce friction.

Step S202: When the weight of the molten metal gradually increases until the balance plate 2 is tilted in reverse, the metal ball release groove 4 is tilted, and the metal balls in the groove are released naturally. With the reverse tilt of the balance plate, the initial end of the release groove Roll to terminal and drop in the socket box 11 that is positioned at one end of rotating rod.

Step S203: The receiving box 11 moves downward under the gravity of the metal ball, the other end of the rotating rod 12 moves upward under the action of the lever and releases the sliding rod 9, and the sliding rod 9 moves under the drive of the tension spring 13 and breaks away from the arc. The positioning gear 8 engaged with the gear is released, and the fixed rod 7 engaged with the positioning gear 8 is released; the pouring barrel 3 fixedly connected with the fixed rod 7 rotates under the effect of its own gravity.

After the pouring is completed, the pouring bucket has returned to its position under the action of the torsion spring. Clean up the equipment and manually pull the gear lever 10 and use the rotating rod 12 to hold the gear lever 10, and put the metal ball again at the initial end of the metal ball release groove; , the process of quantitative weighing of molten metal ends, and the device is completely reset, waiting for the next pouring.

In order to facilitate the understanding of the method of this embodiment, the accompanying drawings 1-5 can be combined.

The device and method for quantitatively weighing molten metal in the patent of the present invention can quantitatively weigh molten metal to achieve instant quantitative weighing and instant pouring, which can save time, avoid cumbersome operations of cutting and processing alloys before smelting, and prevent molten metal Excessive pouring or insufficient filling in the mold to achieve precise and economical alloy liquid pouring. Finally, the device structure of the present invention is simple and light, easy to disassemble and easy to operate, and can be used for quantitative weighing and pouring of molten metal in different situations.

The technical features not described in the patent of the present invention can be realized by or by using existing technologies, so they will not be repeated here. Of course, the above description is not a limitation to the patent of the present invention, and the patent of the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary skilled persons within the essential scope of the patent for the present invention shall also fall within the protection scope of the patent for the present invention.

Claims (9)

1. a kind of device of quantitative weighing molten metal bath, it is characterised in that be movably arranged on institute including support, by a rotating shaft State the balance plate on support, the weight for being movably arranged on the teeming ladle of described balance plate one end, being arranged on the balance plate other end Code holding box and the teeming ladle drive mechanism being connected with the teeming ladle；

The teeming ladle is eccentrically set on the balance plate by rotating shaft, and the center of gravity of the teeming ladle is located at outside the balance plate Portion；

The teeming ladle drive mechanism includes being used for the positioning component for limiting teeming ladle upset and described spacing for discharging The trigger assembly of component.

2. the device of quantitative weighing molten metal bath according to claim 1, it is characterised in that the positioning component includes The positioning gear that is vertically arranged on the balance plate, the fix bar engaged with the positioning gear both sides and sliding bar, it is described Fix bar and described sliding bar one end be provided with the arc-shaped rack that engage of positioning gear, the fix bar other end and The teeming ladle is fixedly connected, and the limit sliding chutes used cooperatively with the sliding bar, the slip are offered on the balance plate Bar other end upper surface is provided with lever, and drawing is provided between sliding bar and the limit sliding chutes positioned at described in described lever one end Stretch spring.

3. the device of quantitative weighing molten metal bath according to claim 1 or 2, it is characterised in that the trigger assembly The bull stick on the balance plate is movably arranged on including middle part, described bull stick one end is against on the outside of the lever, and the bull stick is another One end is provided with undertaking box, and a support bar, which is provided with metal ball, close to balance plate described in described counterweight holding box one end discharges Groove, the outlet of the metal ball release groove, which is located in the surface of the undertaking box, the metal ball release groove, is placed with metal Ball.

4. the device of the quantitative weighing molten metal bath according to claim any one of 1-3, it is characterised in that also including use In the limit assembly for limiting the balance plate anglec of rotation；The limit assembly includes gear and is fixedly connected with the gear U-shaped gag lever post, the U-shaped gag lever post other end can be against the lower surface of the balance plate；Offered on the support and institute State gear meshed gears groove.

5. the device of the quantitative weighing molten metal bath according to claim any one of 1-4, it is characterised in that the balance The both sides of plate are provided with balancing weight holding box.

6. the device of the quantitative weighing molten metal bath according to claim any one of 1-5, it is characterised in that the cast Bucket is arranged on the balance plate by a support frame, and torsion spring is additionally provided between the teeming ladle and support frame as described above.

7. a kind of method of molten metal bath quantitative weighing, it is characterised in that methods described includes：

Step S1：By placing balancing weight in the balancing weight holding box at balance plate two ends, it is horizontal balance plate；Obtain The weight of prefabricated casting is taken, the counterweight of equivalent is placed on to the counterweight holding box of balance plate one end according to the weight of prefabricated casting It is interior, balance plate run-off the straight, teeming ladle, which is hinged, to be positioned on balance plate；

Step S2：Molten metal bath is poured into the teeming ladle being positioned, when the weight of molten metal bath is gradually increased to put down When reversed dip occurs in weighing apparatus plate, being eccentrically set on the teeming ladle at balance plate edge can just be released and in the presence of self gravitation Rotate, the molten metal bath in teeming ladle is poured into mould.

8. the method for molten metal bath quantitative weighing according to claim 7, it is characterised in that the step S2, specifically For：

Step S201:When the weight of molten metal bath is increased to before reversed dip occurs in balance plate, sliding bar is by bull stick one end Prop up immovable so that the arc gear wheel of the sliding bar other end is engaged with positioning gear, engaged with positioning gear opposite side The torsional forces that fix bar overcomes teeming ladle to produce keeps balance；

Step S202：When the weight of molten metal bath, which is gradually increased to balance plate, reversed dip occurs, metal ball release groove inclines Tiltedly, the metal ball Spontaneous release in groove, as the reversed dip of balance plate is rolled to terminal by the initial end of release groove and drops In the undertaking box of bull stick one end；

Step S203：Accept box to move downward under the gravity of metal ball, the bull stick other end is moved upwards in the presence of lever And sliding bar is discharged, sliding bar is moved out the positioning gear engaged with arc gear wheel under the drive of extension spring, with determining The fix bar of position gear engagement is released；The teeming ladle being fixedly connected with fix bar is rotated in the presence of self gravitation.

9. the method for the molten metal bath quantitative weighing according to claim 7 or 8, it is characterised in that methods described is also wrapped Include：

Step S3：After the molten metal bath in teeming ladle is emptied, the torsion spring below teeming ladle overcomes teeming ladle deadweight drive to pour Bucket is noted to reset.