Drawing die for inner door plate of disinfection cabinet

Abstract

The utility model discloses a disinfection cabinet inner door plate drawing die which comprises an upper die plate, an upper die assembly, a male die, a male die base plate and a lower die plate, the upper die assembly comprises a female die, an inner pushing material and a small male die which are matched with one another, a through hole matched with the small male die is formed in the middle of the female die, the female die is fixedly connected to the upper die plate, the inner pushing material is arranged in the middle of the female die, and the male die base plate is arranged on the lower die plate. The small male die is fixed in the middle of the upper template; the male die is fixedly arranged on the lower die plate through a male die base plate. The upper die assembly and the male die are correspondingly arranged in a matched mode. And a guide piece for guiding mold closing is arranged between the upper mold plate and the lower mold plate. According to the die, the edge of a product is effectively formed through the blank holder, meanwhile, the calendering ribs are arranged, the plate feeding resistance is increased, the product is prevented from wrinkling in the forming process, and the rigidity of the formed product is improved. And the bending deformation degree of the blank holder during working is effectively reduced through the arrangement of the top plate, so that the drawing forming quality of a workpiece is improved, and the service life of the blank holder is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a drawing die for an inner door panel of a disinfection cabinet. Background Art

[0002] Stamping is a process method of mechanical processing. It uses a press to apply pressure to the metal blank through a die to cause it to undergo plastic deformation, thereby obtaining parts with a certain shape, size and rib grooves. It is one of the important processing methods in mechanical manufacturing.

[0003] The drawing die is one of the most common forming dies in stamping dies. It is generally placed between the die and the punch. After the die presses the punch, the blank is pressed, and then the blank is drawn in the die and deformed.

[0004] The existing drawing dies used in the production of disinfection cabinet inner door panels gradually increase the blank's holding force as the die moves toward the punch, making it difficult to increase the blank's volume within the die. This leads to wrinkles in the finished component due to insufficient deformation volume during the drawing process. This is particularly true for structures such as disinfection cabinet inner door panels, which require a smooth surface. This can result in production line downtime to re-adjust the die or require manual repairs offline, which wastes time and compromises the quality of these repairs. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the utility model provides a drawing die for an inner door panel of a disinfection cabinet.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A drawing die for the inner door panel of a disinfection cabinet comprises an upper template, an upper template assembly, a punch, a punch pad and a lower template, wherein the upper template assembly comprises a matte, an inner pusher and a small punch that cooperate with each other, a through hole that cooperates with the small punch is provided in the middle of the matte, the matte is fixedly connected to the upper template, the inner pusher is provided in the middle of the matte, and the small punch is fixed in the middle of the upper template; the punch is fixedly provided on the lower template through a punch pad; the upper template assembly and the punch are correspondingly matched; a guide member for guiding the mold closing is provided between the upper template and the lower template.

[0008] Preferably, the guide member includes a guide column and a guide sleeve, the guide column is fixedly connected to the lower template, the guide sleeve is fixedly connected to the upper template, the guide column is slidably inserted into the guide sleeve, and the upper template is provided with a through hole for the guide column to slide, and the through hole is connected to the guide sleeve.

[0009] Preferably, the guide sleeve is provided with a guide hole for sliding engagement with the guide post, the guide hole is coaxially connected to the movable groove, and the aperture of the movable groove is larger than the aperture of the guide hole.

[0010] Preferably, the mold further comprises a pressure ring, which is arranged around the punch and fixedly arranged on the lower template; the forming surface of the pressure ring is provided with rolling ribs, and the die is provided with rib grooves corresponding to the rolling ribs.

[0011] Preferably, the drawing die for the inner door panel of the disinfection cabinet further comprises a lower base plate, the lower template being fixed to the upper surface of the lower base plate by lower die legs; a top plate being provided on the lower base plate, a top rod being provided on the top plate, a through hole for passing the top rod being provided on the lower template, and the upper end of the top rod being passed through the through hole.

[0012] Preferably, the upper mold assembly and the punch are both provided with a plurality of exhaust holes.

[0013] The beneficial effects of the utility model are as follows:

[0014] The mold of the utility model effectively forms the edge of the product through the blank holder, and at the same time provides calendering ribs to increase the material flow resistance of the plate, prevent the product from wrinkling during the forming process, and improve the rigidity of the product after forming. The provision of the top plate effectively reduces the degree of bending deformation of the blank holder during operation, thereby improving the deep drawing quality of the workpiece and extending the service life of the blank holder. In addition, the design of the top plate can also prevent the workpiece from deformation during the deep drawing process. During the deep drawing process, the flange part of the blank generates tensile stress in the radial direction and compressive stress in the tangential direction due to the action of the drawing force, resulting in plastic deformation of the material. The top plate ensures that the workpiece maintains a stable shape during the deep drawing process through its supporting effect, avoiding deformation caused by stress concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 、 2 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the template structure in an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the template structure in an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the die structure of an embodiment of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the blank holder ring in an embodiment of the utility model;

[0020] Figure 7 This is a schematic diagram of the top plate structure of an embodiment of the utility model;

[0021] Figure 8 This is a schematic diagram of the punch structure of an embodiment of the utility model;

[0022] Figure 9 This is a schematic diagram of the structure of the punch pad in an embodiment of the utility model;

[0023] Figure 10 This is a schematic diagram of the internal pushing structure of an embodiment of the utility model;

[0024] Figure 11 This is a schematic diagram of the small punch structure of an embodiment of the utility model;

[0025] Figure 12 This is a schematic diagram of the structure of the inner door panel of the disinfection cabinet according to the embodiment of the present utility model;

[0026] Among them, 1-upper template, 2-die, 3-blank pressure ring, 4-inner pusher, 5-small punch, 6-punch, 7-punch pad, 8-lower template, 9-top plate, 10-upper bottom plate, 11-lower bottom plate. DETAILED DESCRIPTION

[0027] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] like Figures 1 to 11 As shown, a drawing die for the inner door panel of a disinfection cabinet comprises an upper template 1, an upper template assembly, a punch 6, a punch pad 7, a lower template 8, an upper base plate 10 and a lower base plate 11. The upper template 1 is fixed to the lower surface of the upper base plate 10 by an upper template foot; the upper template assembly comprises a die 2, an inner pusher 4 and a small punch 5 that cooperate with each other. A through hole that cooperates with the small punch 5 is provided in the middle of the die 2. The die 2 is fixedly connected to the lower surface of the upper template 1, the inner pusher 4 is provided in the middle of the die 2, and the small punch 5 is fixed in the middle of the upper template 1; the punch 6 is fixedly connected to the upper surface of the punch pad 7, and the punch pad 7 is fixedly provided on the lower template 8; the upper template assembly and the punch 6 are correspondingly matched and arranged, and the lower template 8 is fixed to the upper surface of the lower base plate 11 by the lower template foot; a guide member for mold closing guide is provided between the upper template 1 and the lower template 8 (not shown in the figure).

[0029] The guide member includes a guide post and a guide sleeve. The guide post is fixedly connected to the lower template 8, and the guide sleeve is fixedly connected to the upper template 1. The guide post slides through the guide sleeve. The upper template 1 is provided with a through hole for the guide post to slide, and the through hole is connected to the guide sleeve.

[0030] The guide sleeve is provided with a guide hole for the guide post to slide with. The guide hole is coaxially connected to the movable groove, and the diameter of the movable groove is larger than that of the guide hole. The provision of the guide hole improves the guiding stability of the guide post. At the same time, the coaxial and large-diameter movable groove can effectively avoid the guide post and prevent it from contacting the upper template 1.

[0031] The mold also includes a blank holder 3, which surrounds the punch 6 and is fixed to the lower mold plate 8. The blank holder's forming surface is provided with ribs, and the die 2 is provided with grooves corresponding to the ribs. The blank holder effectively shapes the product edge and provides ribs to increase the sheet's resistance to material flow, preventing wrinkling during the forming process and improving the rigidity of the finished product.

[0032] A top plate 9 is provided on the lower base plate 11, and a top rod is provided on the top plate 9. A through hole for passing the top rod is provided on the lower template 8, and the upper end of the top rod is passed through the through hole. The setting of the top plate 9 effectively reduces the degree of bending deformation of the blank holder 3 during operation, thereby improving the deep drawing quality of the workpiece and extending the service life of the blank holder 3. In addition, the design of the top plate 9 can also prevent the workpiece from deforming during the drawing process. During the drawing process, the flange part of the blank generates tensile stress in the radial direction and compressive stress in the tangential direction due to the action of the drawing force, resulting in plastic deformation of the material. The top plate 9 ensures that the workpiece maintains a stable shape during the drawing process through its supporting effect, avoiding deformation caused by stress concentration.

[0033] In one embodiment, multiple exhaust holes are provided on both the upper die assembly and the punch 6. By adopting the above structure, the gas between the upper die assembly and the punch 6 is effectively exhausted, preventing the increase of gas pressure during the drawing process, which may cause uneven product surface and affect the drawing quality.

[0034] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements to the technical solution of the present invention made by a person of ordinary skill in the art without departing from the design concept of the present invention shall fall within the scope of protection of the present invention. The technical content sought to be protected by the present invention is fully set forth in the claims.

Claims

1. A drawing die for the inner door panel of a disinfection cabinet, characterized in that: The invention comprises an upper mold plate (1), an upper mold assembly, a punch (6), a punch pad (7) and a lower mold plate (8), wherein the upper mold assembly comprises a matte (2), an inner pusher (4) and a small punch (5) which cooperate with each other, a through hole which cooperates with the small punch (5) is provided in the middle of the matte (2), the matte (2) is fixedly connected to the upper mold plate (1), the inner pusher (4) is provided in the middle of the matte (2), and the small punch (5) is fixed in the middle of the upper mold plate (1); the punch (6) is fixedly provided on the lower mold plate (8) through the punch pad (7); the upper mold assembly and the punch (6) are correspondingly matched; and a guide member for guiding the mold closing is provided between the upper mold plate (1) and the lower mold plate (8).

2. A disinfection cabinet inner door panel drawing die according to claim 1, characterized in that: The guide member comprises a guide post and a guide sleeve, wherein the guide post is fixedly connected to the lower template (8), and the guide sleeve is fixedly connected to the upper template (1). The guide post is slidably inserted into the guide sleeve, and the upper template (1) is provided with a through hole for the guide post to slide, and the through hole is connected to the guide sleeve.

3. A drawing die for an inner door panel of a disinfection cabinet according to claim 2, characterized in that: The guide sleeve is provided with a guide hole for sliding engagement with the guide post. The guide hole is coaxially connected to the movable groove, and the aperture of the movable groove is larger than that of the guide hole.

4. The drawing die for the inner door panel of a disinfection cabinet according to claim 1, characterized in that: The blank holder comprises a blank holder ring (3), the blank holder ring (3) is arranged around the punch (6), and the blank holder ring (3) is fixedly arranged on the lower template (8); a forming surface of the blank holder ring is provided with a rolling rib, and the die (2) is provided with a rib groove corresponding to the rolling rib.

5. The drawing die for the inner door panel of a disinfection cabinet according to claim 4, characterized in that: The lower mold plate (8) is fixed to the upper surface of the lower mold plate (11) via a lower mold foot; a top plate (9) is provided on the lower mold plate (11); a top rod is provided on the top plate (9); a through hole for passing the top rod is provided on the lower mold plate (8); and the upper end of the top rod is inserted into the through hole.

6. The drawing die for the inner door panel of a disinfection cabinet according to claim 1, characterized in that: The upper die assembly and the punch (6) are both provided with a plurality of exhaust holes.

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