Stamping die capable of preventing waste materials from floating upwards

Abstract

The utility model discloses a stamping die capable of preventing waste materials from floating upwards, and particularly relates to the technical field of stamping dies, the stamping die comprises a stamping male die and a stamping female die which are distributed up and down, a plurality of evenly distributed stamping heads are fixedly arranged at the bottom of the stamping male die, and stamping holes with the same number as the stamping heads are formed in the top of the stamping female die. Each punching hole comprises a pyramid hole, a straight arm hole and a blanking hole which are sequentially distributed from top to bottom, two exhaust pipes which are symmetrically distributed front and back are arranged in the punching female die, exhaust heads with the same number as the blanking holes are communicated between the two exhaust pipes, and a filter screen is fixedly arranged in each exhaust head. According to the stamping die, the stamping holes in the stamping female die are designed into the pyramid holes, the straight arm holes and the blanking holes, and waste materials are limited by the junctions of the blanking holes and the straight arm holes and cannot float upwards, so that the waste materials can be prevented from floating upwards and adhering to the working surfaces of the stamping male die and the stamping female die to cause crushing of products, the rejection rate can be reduced, and the production efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and more specifically to a stamping die for preventing waste material from floating. Background Technology

[0002] Stamping is a pressure processing method that uses a die mounted on a press to apply pressure to sheet metal at room temperature, causing it to separate or plastically deform, thereby obtaining the desired parts. A stamping die is a tool used to separate or deform blanks. In cold stamping, it is a special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products), also known as a cold stamping die (commonly called a cold stamping mold). It is an indispensable tool in stamping production, and its structure has a significant impact on the efficiency of stamping production and the service life of the die. The working principle of a stamping die is as follows: the stamping die is mounted on a press, and the stamping action is achieved by the up-and-down movement of the die; the metal material to be processed is placed in the working cavity of the die and fits against the upper and lower parts of the die; the press moves the die up and down through a mechanism and transmission device. When the die moves downward, the metal material is deformed by the stamping pressure; when the die is pressed into place, the press applies pressure, causing the die to stamp the metal material. Under the action of stamping pressure, the metal material is impacted and deformed by the bosses or grooves on the inside of the die, thus presenting a shape with the specified pattern and size.

[0003] For example, in a stamping die for metal parts disclosed in the prior art (CN221246709U), the extension post extends outward to the mounting post to cause the spring to deform, and the extended post covers the surface of the side block. Then, the elasticity of the spring causes the extension post to return to its original position, so that the surface of the side block can contact the sensing pad set on the inner wall of the extension post and squeeze the sensing pad. This can effectively shorten the time spent in fixing the die and improve the efficiency of part processing to a certain extent.

[0004] However, the existing technology described above still has the following problems in use: during the production of stamping dies, the scrap material after punching often floats up and sticks to the working surface of the die, causing product damage, and frequently resulting in batch scrapping, reducing production efficiency and increasing costs. Based on this, the present invention provides a stamping die that prevents scrap material from floating up. Utility Model Content

[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a stamping die that prevents scrap from floating. By designing the stamping holes on the stamping die as pyramidal holes, straight arm holes, and blanking holes, the scrap is limited at the junction of the blanking hole and the straight arm hole and cannot float upwards. This prevents the scrap from floating and sticking to the working surfaces of the stamping punch and stamping die, thus avoiding product damage. Consequently, it can reduce the scrap rate and improve production efficiency, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stamping die for preventing waste from floating, comprising a stamping punch and a stamping die distributed vertically. The bottom of the stamping punch is fixedly provided with a plurality of evenly distributed stamping heads. The top of the stamping die is provided with stamping holes of the same number as the number of stamping heads. Each stamping hole includes a pyramidal hole, a straight arm hole and a blanking hole distributed sequentially from top to bottom. The stamping die is provided with two symmetrically distributed air extraction pipes. The two air extraction pipes are connected to air extraction heads of the same number as the blanking holes. Each air extraction head is fixedly provided with a filter screen. Both air extraction pipes are connected to a negative pressure component.

[0007] In a preferred embodiment, the negative pressure component includes an air pump, the air inlet pipe of which is connected to two air extraction pipes via a three-way pipe. By using the air pump to draw in gas, waste materials can be adsorbed to a certain extent, thereby improving the effect of preventing waste materials from floating.

[0008] In a preferred embodiment, the bottom of the air pump is fixedly provided with a mounting base, and the top of the mounting base has multiple mounting holes. Bolts are passed through the multiple mounting holes to improve the stability of the air pump.

[0009] In a preferred embodiment, the stamping die has round holes machined at the four corners of its top, and each round hole has a fixed positioning post inside. The stamping punch has positioning holes of the same number as the positioning posts on its top. The positioning posts are located in the positioning holes. By using the positioning posts and positioning holes in cooperation, the stability of the stamping punch moving up and down can be improved.

[0010] In a preferred embodiment, the top of the stamping punch is machined with a plurality of equally spaced fixing holes, which are all located inside a plurality of positioning holes. The fixing holes facilitate the connection between the stamping punch and the driving equipment, and the stamping punch is driven to rise and fall by the driving equipment, thereby improving stamping efficiency.

[0011] In a preferred embodiment, the top opening diameter of the pyramidal hole is 3.65 mm, the bottom opening diameter is 3.56 mm, and the height is 2.5 mm; the straight arm hole has a diameter of 3.56 mm and a height of 1.5 mm; and the discharge hole has a diameter of 5 mm.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This invention designs the stamping holes on the stamping die as pyramidal holes, straight arm holes, and blanking holes. When the stamping punch punches the scrap into the blanking hole within the stamping hole, there is no pressure constraint, and the scrap will slightly expand and contact the inner wall of the blanking hole. When the stamping punch returns, the scrap is limited by the junction of the blanking hole and the straight arm hole and cannot float upward. This can prevent the scrap from floating and sticking to the working surfaces of the stamping punch and die, causing product damage, thereby reducing the scrap rate and improving production efficiency.

[0014] The air is drawn from the material discharge hole by an air pump, a three-way pipe, an air extraction pipe, and an air extraction head, creating a certain negative pressure inside the discharge hole. This further prevents the waste from floating. A filter screen is installed inside the air extraction head to prevent waste fragments from entering the air extraction head and causing blockage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front view of the overall structure of this utility model;

[0017] Figure 3 This is a cross-sectional plan view of the stamping punch of this utility model;

[0018] Figure 4 This is a top plan view of the stamping punch of this utility model;

[0019] Figure 5 This is a three-dimensional cross-sectional view of the stamping punch of this utility model.

[0020] The attached figures are labeled as follows: 1. Stamping punch; 2. Stamping die; 3. Stamping head; 4. Stamping hole; 5. Evacuation pipe; 6. Evacuation head; 7. Filter screen; 8. Negative pressure assembly; 9. Round hole; 10. Positioning pin; 11. Positioning hole; 12. Fixing hole;

[0021] 42. Conical hole; 43. Straight arm hole; 44. Blanking hole;

[0022] 81. Air pump; 82. T-pipe; 83. Mounting base; 84. Mounting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Refer to the instruction manual appendix Figures 1-5 This utility model provides a stamping die for preventing waste material from floating, including a stamping punch 1 and a stamping die 2 distributed vertically. The bottom of the stamping punch 1 is fixed with a plurality of evenly distributed stamping heads 3. The top of the stamping die 2 has the same number of stamping holes 4 as the number of stamping heads 3. Each stamping hole 4 includes a pyramidal hole 41, a straight arm hole 42 and a blanking hole 43 distributed from top to bottom. Specifically, the top opening diameter of the pyramidal hole 41 is 3.65 mm, the bottom opening diameter is 3.56 mm and the height is 2.5 mm, the straight arm hole 42 has a diameter of 3.56 mm and a height of 1.5 mm, and the blanking hole 43 has a diameter of 5 mm.

[0025] The stamping die 2 has four round holes 9 machined at the top corners, and each round hole 9 has a fixed positioning post 10 inside. The stamping punch 1 has the same number of positioning holes 11 as the positioning posts 10 machined at the top. The positioning posts 10 are located in the positioning holes 11. By using the positioning posts 10 and the positioning holes 11 to cooperate, the stability of the stamping punch 1 moving up and down can be improved. The stamping punch 1 has multiple equally spaced fixing holes 12 machined at the top. The multiple fixing holes 12 are all located inside the multiple positioning holes 11.

[0026] In practical use, by designing the stamping hole 4 on the stamping die 2 as a pyramidal hole 41, a straight arm hole 42, and a blanking hole 43, and connecting the stamping punch 1 to a driving device such as a hydraulic cylinder, the stamping punch 1 is driven by the driving device to punch the scrap into the pyramidal hole 41. When the scrap passes through the pyramidal hole 41 and the straight arm hole 42, it is squeezed inward by the extrusion force. When the scrap reaches the blanking hole 43, there is no extrusion force to restrict it, and the scrap will slightly stretch and enlarge to contact the inner wall of the blanking hole 43. When the stamping punch 1 returns, the scrap is limited by the junction of the blanking hole 43 and the straight arm hole 42 and cannot float up. This can prevent the scrap from floating up and sticking to the working surfaces of the stamping punch 1 and the stamping die 2, causing product damage, thereby reducing the scrap rate and improving production efficiency.

[0027] Refer to the instruction manual appendix Figures 1-5 The stamping die 2 is provided with two symmetrically distributed air extraction pipes 5 inside, and the two air extraction pipes 5 are connected to an air extraction head 6 with the same number as the blanking hole 43. Each air extraction head 6 is fixedly provided with a filter screen 7 inside.

[0028] Both suction pipes 5 are connected to a negative pressure assembly 8. Specifically, the negative pressure assembly 8 includes a suction pump 81. The air inlet pipe of the suction pump 81 is connected to the two suction pipes 5 through a three-way pipe 82. A fixing base 83 is fixedly provided at the bottom of the suction pump 81. Multiple mounting holes 84 are opened at the top of the fixing base 83. Bolts are used to pass through the multiple mounting holes 84 to improve the stability of the suction pump 81.

[0029] When the stamping punch 1 returns, the air pump 81, the three-way pipe 82, the air extraction pipe 5 and the air extraction head 6 are used to extract the gas in the blanking hole 43, so that a certain negative pressure is formed in the blanking hole 43, thereby reducing the possibility of scrap floating. A filter screen 7 is installed inside the air extraction head 6. The filter screen 7 can block the scrap and prevent scrap fragments from entering the air extraction head 6 and causing blockage.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stamping die for preventing waste from floating, comprising a stamping punch (1) and a stamping die (2) distributed vertically, characterized in that: The bottom of the stamping punch (1) is fixed with a plurality of uniformly distributed stamping heads (3), and the top of the stamping die (2) is provided with the same number of stamping holes (4) as the stamping heads (3). Each stamping hole (4) includes a pyramidal hole (41), a straight arm hole (42) and a blanking hole (43) distributed from top to bottom. The stamping die (2) is provided with two symmetrically distributed air extraction pipes (5) inside. The two air extraction pipes (5) are connected to the same number of air extraction heads (6) as the blanking holes (43). Each air extraction head (6) is fixedly provided with a filter screen (7). Both air extraction pipes (5) are connected to a negative pressure component (8).

2. The stamping die for preventing waste from floating according to claim 1, characterized in that: The negative pressure assembly (8) includes a vacuum pump (81), the air inlet pipe of which is connected to two vacuum pipes (5) via a three-way pipe (82).

3. A stamping die for preventing waste from floating according to claim 2, characterized in that: The bottom of the air pump (81) is fixedly provided with a mounting base (83), and the top of the mounting base (83) is provided with multiple mounting holes (84).

4. A stamping die for preventing waste from floating according to claim 1, characterized in that: The stamping die (2) has round holes (9) at the four corners of its top, and each round hole (9) has a fixed positioning post (10) inside. The stamping punch (1) has positioning holes (11) at its top, the same number as the positioning posts (10), and the positioning posts (10) are located in the positioning holes (11).

5. A stamping die for preventing waste from floating according to claim 4, characterized in that: The top of the stamping punch (1) is machined with multiple equally spaced fixing holes (12), and the multiple fixing holes (12) are all located inside the multiple positioning holes (11).

6. A stamping die for preventing waste from floating according to claim 1, characterized in that: The top opening diameter of the cone hole (41) is 3.65 mm, the bottom opening diameter is 3.56 mm, and the height is 2.5 mm. The diameter of the straight arm hole (42) is 3.56 mm and the height is 1.5 mm. The diameter of the material drop hole (43) is 5 mm.

Images