阅读说明：本技术 一种橡胶零件复合冲裁装置 (Compound punching device of rubber part ) 是由 何永能 胡佳乐 刘婷 龙拾剑 杨奇 张国豁 于 2021-08-25 设计创作，主要内容包括：本发明提供了一种橡胶零件复合冲裁装置,包括卸料板；所述卸料板装在下模座上,卸料板上方有可升降的上模座,上模座底部装有凹橡胶零件复合冲裁装置；在上固定板的中部嵌装凸凹模,凸凹模顶面中部有向上凸起的台阶,在凹橡胶零件复合冲裁装置的中部嵌装凹模镶件,凹模镶件底面中部有向上凹陷的台阶,凸凹模和凹模镶件形状配合。本发明可提高橡胶零件的生产效率和合格率,保证了橡胶零件的稳定,降低生产成本,拓展橡胶零件的生产方法和冲压复合模具结构。(The invention provides a composite blanking device for rubber parts, which comprises a stripper plate; the stripper plate is arranged on the lower die base, a liftable upper die base is arranged above the stripper plate, and the bottom of the upper die base is provided with a concave rubber part composite blanking device; the middle part of the upper fixing plate is embedded with a convex-concave die, the middle part of the top surface of the convex-concave die is provided with an upward convex step, the middle part of the composite blanking device for the concave rubber part is embedded with a concave die insert, the middle part of the bottom surface of the concave die insert is provided with an upward concave step, and the convex-concave die and the concave die insert are matched in shape. The invention can improve the production efficiency and the qualification rate of the rubber parts, ensure the stability of the rubber parts, reduce the production cost and expand the production method and the stamping composite die structure of the rubber parts.)

1. The utility model provides a compound blanking device of rubber part, includes stripper (11), its characterized in that: the stripper plate (11) is arranged on the lower die base (15), the upper die base (3) capable of lifting is arranged above the stripper plate (11), and the bottom of the upper die base (3) is provided with the concave rubber part composite blanking device (9); a punch-die (18) is embedded in the middle of an upper fixing plate (7), an upward convex step is arranged in the middle of the top surface of the punch-die (18), a die insert (20) is embedded in the middle of a concave rubber part composite blanking device (9), an upward concave step is arranged in the middle of the bottom surface of the die insert (20), and the punch-die (18) and the die insert (20) are matched in shape.

2. The composite blanking device for rubber parts according to claim 1, characterized in that: an upper backing plate II (25), an upper backing plate I (6), an upper fixing plate (7) and an upper backing plate I (8) are sequentially arranged between the upper die holder (3) and the concave rubber part composite blanking device (9) from top to bottom.

3. The composite blanking device for rubber parts according to claim 1, characterized in that: and a lower backing plate (14), a lower fixing plate (13) and rubber (12) are sequentially arranged between the stripper plate (11) and the lower die seat (15) from bottom to top.

4. The composite blanking device for rubber parts according to claim 3, characterized in that: the rubber (12) is annular, a floating plate (16) is embedded in the rubber, and the thickness of the floating plate (16) is smaller than that of the rubber (12).

5. The composite blanking device for rubber parts according to claim 1, characterized in that: the discharging plate (11) is provided with a guide post (10).

6. The composite blanking device for rubber parts according to claim 1, characterized in that: the convex-concave die (18) is provided with a vertical hole in the middle of the raised step, and the concave die insert (20) is provided with a punching convex die (23) which moves vertically at the position corresponding to the vertical hole.

7. The composite blanking device for rubber parts according to claim 6, characterized in that: the punching male die (23) is arranged in the push block (21), the push block (21) is embedded between the die insert (20) and the punching male die (23), and the push rod (24) is arranged at the top end of the push block (21) and covers the punching male die (23) for installation.

8. The composite blanking device for rubber parts according to claim 7, characterized in that: the top end of the push rod (24) is provided with a rectangular spring (2), the rectangular spring (2) is fixed on the die handle (1), and the die handle (1) penetrates through the upper die base (3) to be installed.

Technical Field

The invention relates to a composite blanking device for rubber parts.

Background

The rubber gasket shown in fig. 6 is a rubber part of a switch of a certain type, and the material of the rubber gasket is 5860 rubber. For rubber sealing ring (gasket) parts, particularly rubber sealing ring (gasket) parts with special-shaped inner holes and special-shaped shapes, the prior art generally adopts a rubber pressing die for production, has high energy consumption, low production efficiency and low part qualification rate, needs to manually remove redundant waste materials around the inner hole shapes of the parts, and sometimes cannot completely remove the waste materials.

Disclosure of Invention

In order to solve the technical problems, the invention provides the composite blanking device for the rubber parts, which can improve the production efficiency and the qualification rate of the rubber parts and ensure the stability of the rubber parts.

The invention is realized by the following technical scheme.

The invention provides a composite blanking device for rubber parts, which comprises a stripper plate; the stripper plate is arranged on the lower die base, a liftable upper die base is arranged above the stripper plate, and the bottom of the upper die base is provided with a concave rubber part composite blanking device; the middle part of the upper fixing plate is embedded with a convex-concave die, the middle part of the top surface of the convex-concave die is provided with an upward convex step, the middle part of the composite blanking device for the concave rubber part is embedded with a concave die insert, the middle part of the bottom surface of the concave die insert is provided with an upward concave step, and the convex-concave die and the concave die insert are matched in shape.

And an upper backing plate II, an upper backing plate I, an upper fixing plate and an upper lining plate I are sequentially arranged between the upper die base and the concave rubber part composite blanking device from top to bottom.

And a lower backing plate, a lower fixing plate and rubber are sequentially arranged between the stripper plate and the lower die base from bottom to top.

The rubber is annular, is embedded with a floating plate, and the thickness of the floating plate is smaller than that of the rubber.

The stripper plate is provided with a guide post.

The convex-concave die is provided with a vertical hole in the middle of the raised step, and the concave die insert is provided with a vertically moving punching convex die at the position corresponding to the vertical hole.

The punching male die is arranged in the push block, the push block is embedded between the female die insert and the punching male die, and the push rod is arranged at the top end of the push block and covers the punching male die.

The top end of the push rod is provided with a rectangular spring which is fixed on a die handle, and the die handle penetrates through the upper die base to be installed.

The invention has the beneficial effects that: the production efficiency and the qualification rate of the rubber parts can be improved, the stability of the rubber parts is ensured, the production cost is reduced, and the production method and the stamping composite die structure of the rubber parts are expanded.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is an enlarged schematic view at B of FIG. 1;

FIG. 4 is a schematic structural view of the closed state of FIG. 1;

FIG. 5 is an enlarged schematic view at C in FIG. 4;

FIG. 6 is a schematic view showing the structure of a rubber part after molding.

In the figure: 1-die shank, 2-rectangular spring, 3-upper die holder, 4-cover plate, 5-upper liner plate II, 6-upper backing plate I, 7-upper fixing plate, 8-upper liner plate I, 9-concave rubber part composite blanking device, 10-guide column, 11-stripper plate, 12-rubber, 13-lower fixing plate, 14-lower backing plate, 15-lower die holder, 16-floating plate, 17-positioning nail, 18-punch-die, 19-stripper plate insert, 20-die insert, 21-push block, 22-round punch, 23-punching punch, 24-push rod, 25-upper backing plate II and 26-rubber material.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

Example 1

A composite blanking apparatus for rubber parts shown in fig. 1 to 5 includes a stripper plate 11; the stripper plate 11 is arranged on the lower die base 15, the upper die base 3 capable of lifting is arranged above the stripper plate 11, and the bottom of the upper die base 3 is provided with the concave rubber part composite blanking device 9; the middle part of the upper fixing plate 7 is embedded with a convex-concave die 18, the middle part of the top surface of the convex-concave die 18 is provided with an upward convex step, the middle part of the composite blanking device 9 for concave rubber parts is embedded with a concave die insert 20, the middle part of the bottom surface of the concave die insert 20 is provided with an upward concave step, and the convex-concave die 18 and the concave die insert 20 are matched in shape.

Example 2

Based on the embodiment 1, a second upper backing plate 25, a first upper backing plate 6, an upper fixing plate 7 and a first upper backing plate 8 are sequentially arranged between the upper die holder 3 and the composite blanking device 9 for the concave rubber part from top to bottom.

Example 3

Based on the embodiment 1, a lower backing plate 14, a lower fixing plate 13 and rubber 12 are sequentially arranged between the stripper plate 11 and the lower die holder 15 from bottom to top.

Example 4

In example 1, the rubber 12 is annular, the floating plate 16 is fitted, and the thickness of the floating plate 16 is smaller than that of the rubber 12.

Example 5

According to the embodiment 1, the stripper plate 11 is provided with guide columns 10.

Example 6

Based on example 1, the punch-die 18 has a vertical opening in the middle of the raised step, and the die insert 20 is provided with a vertically moving punching punch 23 at a position corresponding to the vertical opening.

Example 7

Based on the embodiment 1, the punching male die 23 is arranged in the push block 21, the push block 21 is embedded between the die insert 20 and the punching male die 23, and the push rod 24 is arranged at the top end of the push block 21 and covers the punching male die 23.

Example 8

Based on embodiment 1, the top end of the push rod 24 is provided with the rectangular spring 2, the rectangular spring 2 is fixed on the die shank 1, and the die shank 1 penetrates through the upper die base 3 to be installed.

Example 9

Based on the above embodiment, the working principle is as follows: the rubber material 26 is 5860 rubber sheet (strip) material, and the rubber material 26 is placed on the mould stripper plate 11 and is positioned by the positioning nails 17. The pedal of a common punch is stepped, the upper die moves downwards, the concave die plate 9, the concave die insert 20, the push block 21 and the rubber material 26 are contacted, and meanwhile, the convex ribs on the concave die insert 20 and the push block 21, the convex ribs on the stripper plate insert 19 and the convex-concave die 18 tightly press the rubber on the periphery of the shape, the periphery of the molded hole and the periphery of the round hole corresponding to the rubber (plate) strip. The upper die continues to descend, at the moment, the round convex die 22 and the punching convex die 23 which are arranged on the upper fixing plate 7 and the convex-concave die 18 which is arranged on the lower fixing plate 13 simultaneously punch the rubber, the waste materials are discharged through the material leakage holes of the convex-concave die 18, and the formed rubber parts enter between the concave die insert 20 and the punching convex die 23. After blanking, the upper die moves upwards, the rubber part clamped between the die insert 20 and the punching male die 23 pushes the cover plate 4, the push rod 24 and the push block 21 to push the upper die and drop on the stripper plate 11 through the rectangular spring 2, and the waste rubber strip clamped on the punch and die is pushed out from the punch and die 18 under the action of the rubber 12 and the stripper plate 11. The operator takes out the rubber parts with the forceps, and the operator sleeves the holes of the rubber strips into the positioning nails 17 for positioning, and then the next part is produced.

Therefore, for rubber sealing ring (gasket) parts, particularly rubber sealing ring (gasket) parts with special-shaped inner holes and special-shaped shapes, the rubber pressing mold is adopted for production in the prior art, the energy consumption is high, the production efficiency is low, the part qualification rate is low, redundant waste materials around the inner hole shapes of the parts need to be manually removed, and the parts are sometimes unclean. In order to improve the production efficiency and the qualification rate of the rubber parts and reduce the production cost. By the scheme, the production efficiency and the qualification rate of the rubber part can be improved, the production cost is reduced, and the production method and the stamping composite die structure of the rubber part are expanded. Therefore, the peripheries of the profile holes and the round holes of the convex-concave die and the round holes on the blanking compound die are designed with convex ribs, the profile holes and the round holes corresponding to the upper push block are also designed with convex ribs, and the peripheries of the profile holes of the stripper plate insert are also designed with convex ribs and the peripheries of the profile holes corresponding to the concave die insert. When the upper die and the lower die of the die are closed, the convex ribs on the periphery of the die insert and the convex ribs on the periphery of the cavity hole of the stripper insert compress the periphery of the appearance of the rubber part, meanwhile, the convex ribs on the cavity hole and the circular hole of the male die and the convex ribs on the periphery of the cavity hole and the circular hole corresponding to the upper push block compress the rubber plate, the rubber part is punched out when the upper die continues to move downwards, and the rubber material is not elongated and deformed during punching, so that the stability of the size of the rubber part is ensured.