Composite forming die for sealing cover

Abstract

The utility model relates to a sealing cover composite forming die which comprises an upper die base, a lower die base and a guide column, a base plate is arranged on the upper die base, a fixing plate is installed at the bottom of the base plate, a concave-convex die, a stretching concave die and a punching convex die are sequentially arranged on the fixing plate in a sleeved mode, and a stripper plate elastically connected with the upper die base is arranged on the outer side of the concave-convex die. A blanking female die corresponding to the female-male die is fixedly arranged on the lower die base, a flanging male die is fixedly arranged on the inner side of the blanking female die, a punching female die insert is arranged in the middle of the flanging male die, blanking, punching, stretching and flanging procedures are integrated, a single-station multi-procedure punching mode is adopted, all procedures can be completed through one-time positioning, the punching efficiency is improved, and the production cost is reduced. And the production precision and efficiency are effectively improved, only one operator is needed for operation, and the labor use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a capping composite forming mold. Background Art

[0002] The forming of the capping generally requires processes such as blanking, punching, stretching, and flanging. In the current prior art, usually two or more sets of molds are required to complete the forming. Multiple sets of molds are respectively used for blanking, punching, stretching, and flanging of the capping. Its disadvantages are that it increases the production cost and processing procedure steps of the capping; moreover, due to the adoption of multiple processes, the positioning problem is bound to be involved in each process, and there are cumulative errors after multiple positioning processes, and the quality of the capping is relatively unstable. Moreover, at least one punching press and one operator are required for one process, so the production cost is relatively high and the efficiency is too low. Content of the Utility Model

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a capping composite forming mold.

[0004] The purpose of the utility model can be realized by the following technical solutions: A capping composite forming mold includes an upper die base, a lower die base, and guide columns. A backing plate is provided on the upper die base, and a fixing plate is installed at the bottom of the backing plate. A concave-convex die, a stretching female die, and a punching male die are sequentially sleeved on the fixing plate. A stripper plate elastically connected to the upper die base is provided outside the concave-convex die; A blanking female die corresponding to the concave-convex die is fixedly provided on the lower die base, a flanging male die is fixedly provided inside the blanking female die, and a punching female die insert is provided in the middle of the flanging male die.

[0005] Preferably, a material pushing component is provided between the concave-convex die and the stretching female die.

[0006] Preferably, the material pushing component includes a mounting block and a material pushing block provided between the concave-convex die and the stretching female die. The material pushing block is slidably arranged below the mounting block. A pull rod is provided at the top of the material pushing block. One end of the pull rod passes through the mounting block, the backing plate and is connected to a top plate. A first spring is provided between the top plate and the upper die base.

[0007] Preferably, a blank holding component is provided between the blanking female die and the flanging male die.

[0008] Preferably, the blank holding component includes a blank holding ring slidably arranged between the blanking female die and the flanging male die. The bottom of the blank holding ring is threadedly connected to a guide rod slidably matched with the lower die base. A second spring is sleeved on the guide rod.

[0009] Preferably, a positioning pin is provided on the blanking female die.

[0010] The beneficial effects of the present utility model are as follows: By integrating the processes of blanking, punching, stretching, and flanging, and adopting a stamping mode of single-station multi-processes, all processes can be completed with only one positioning, effectively improving the production precision and efficiency. Only one operator is required, reducing the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present utility model will be further described with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation to the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the following drawings.

[0012] Figure 1 It is a schematic structural diagram of a capping composite forming die of the present utility model.

[0013] Figure 2 It is a sectional view of a capping composite forming die of the present utility model.

[0014] Figure 3 It is another schematic structural diagram of a capping composite forming die of the present utility model.

[0015] Figure 4 It is another sectional view of a capping composite forming die of the present utility model.

[0016] The reference numerals shown in the figures are: 1. upper die base; 2. lower die base; 3. guide post; 4. backing plate; 5. fixing plate; 6. concave-convex die; 7. stretching concave die; 8. punching convex die; 9. stripper plate; 10. blanking concave die; 11. flanging convex die; 12. punching concave die insert; 13. mounting block; 14. pushing block; 15. pull rod; 16. top plate; 17. first spring; 18. blank holder; 19. guide rod; 20. second spring; 21. positioning pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0018] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0019] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0020] Refer to Figures 1 to 4 As shown, the structure of the present utility model is: a capping composite forming die, including an upper die base 1, a lower die base 2, and a guide post 3. A backing plate 4 is provided on the upper die base 1, and a fixing plate 5 is installed at the bottom of the backing plate 4. A concave-convex die 6, a drawing concave die 7, and a punching convex die 8 are sequentially sleeved on the fixing plate 5. A stripping plate 9 elastically connected to the upper die base 1 is provided outside the concave-convex die 6; a blanking concave die 10 corresponding to the concave-convex die 6 is fixedly provided on the lower die base 2, a flanging convex die 11 is fixedly provided inside the blanking concave die 10, and a punching concave die insert 12 is provided in the middle of the flanging convex die 11. Specifically, a sheet is placed on the blanking concave die 10, then the upper die base 1 moves downward, and the stripping plate 9 firmly presses the sheet on the blanking concave die 10. Subsequently, the outer wall of the concave-convex die 6 punches into the blanking concave die 10, thereby punching out the size and contour of the capping on the sheet. At the same time, the punching convex die 8 cooperates with the punching concave die insert 12 to punch a hole in the middle of the capping. Then, as the upper die base 1 moves downward, the drawing concave die 7 cooperates with the outer wall of the punching concave die insert 12 to slowly expand the hole on the capping and stretch it upward. At the same time, the inner wall of the concave-convex die 6 cooperates with the flanging convex die 11 to flang the edge of the capping. Subsequently, the upper die base 1 moves upward, and then the formed capping is taken out.

[0021] Furthermore, a material pushing component is provided between the concave-convex die 6 and the drawing concave die 7. Specifically, the material pushing component is used to push the capping out of the die after forming, facilitating the taking out of the capping.

[0022] Such as Figures 2 to 4As shown in the figure, the conveying and pushing component includes a mounting block 13 and a pushing block 14 disposed between the concave-convex die 6 and the stretching concave die 7. The pushing block 14 is slidably arranged below the mounting block 13. A pull rod 15 is provided at the top of the pushing block 14. One end of the pull rod 15 passes through the mounting block 13 and the backing plate 4 and is connected to a top plate 16. A first spring 17 is provided between the top plate 16 and the upper die base 1. Specifically, after the concave-convex die 6 and the punching convex die 8 cut out the outline and holes of the cover, as the upper die base 1 continues to press down, the pushing plate abuts against the cover, causing the pushing plate to move upward. The pull rod 15 is used to push the top plate 16 to compress the first spring 17. When the cover is formed, the upper die base 1 moves upward, and the pushing plate ejects the formed cover out of the mold under the action of the first spring 17.

[0023] Furthermore, a blank-holding component is provided between the blanking concave die 10 and the flanging convex die 11. Specifically, the blank-holding component applies an appropriate pressure to the cover to ensure the stability of the material during the stretching process, thereby preventing the cover from wrinkling during stretching and flanging deformation.

[0024] As Figures 2 to 4 shown in the figure, the blank-holding component includes a blank-holding ring 18 slidably arranged between the blanking concave die 10 and the flanging convex die 11. A guide rod 19 that is in sliding fit with the lower die base 2 is threadedly connected to the bottom of the blank-holding ring 18. A second spring 20 is sleeved on the guide rod 19. Specifically, the blank-holding ring 18 moves upward under the action of the second spring 20. When the concave-convex die 6 performs blanking, the bottom of the sheet material abuts against the blank-holding ring 18. The second spring 20 presses the blanked cover tightly against the concave-convex die 6 through the blank-holding ring 18, so that the cover can be uniformly stressed during the stretching and flanging processes, reducing the generation of stress and deformation of the cover during the stretching and flanging processes.

[0025] As Figure 2 、 Figure 3 shown in the figure, a positioning pin 21 is provided on the blanking concave die 10. Specifically, the positioning pin 21 is used to position the sheet material during stamping.

[0026] During specific use, place the sheet on the blanking female die 10. Then, as the upper die holder 1 moves downward, the stripping plate 9 firmly presses the sheet against the blanking female die 10. Subsequently, the outer wall of the concave-convex die 6 punches into the blanking female die 10, thereby punching out the size and contour of the cover on the sheet. At the same time, the punching punch 8 cooperates with the punching female die insert 12 to punch a hole in the middle of the cover. Then, the blank-holding assembly presses the cover against the concave-convex die 6, applying an appropriate pressure to the cover through the blank-holding assembly to ensure the stability of the material during the stretching process, thereby preventing the cover from wrinkling during stretching and flanging deformation. After that, as the upper die holder 1 moves downward, the stretching female die 7 cooperates with the outer wall of the punching female die insert 12 to gradually expand the hole on the cover and stretch it upward. At the same time, the inner wall of the concave-convex die 6 cooperates with the flanging punch 11 to flange the edge of the cover. Subsequently, the upper die holder 1 moves upward, and the ejecting assembly ejects the formed cover out of the mold, facilitating the removal of the cover.

[0027] The above further describes the present utility model with the aid of specific embodiments. However, it should be understood that this specific description should not be construed as a limitation on the essence and scope of the present utility model. Various modifications made by those of ordinary skill in the art to the above embodiments after reading this specification all fall within the scope protected by the present utility model.

Claims

1. A capping composite molding die, comprising an upper die base (1), a lower die base (2), and a guide column (3), characterized in that: The upper die base (1) is provided with a pad (4), the bottom of which is provided with a fixed plate (5), the fixed plate (5) being sleeved with a concave-convex die (6), a stretching die (7), and a punching die (8) in sequence, the outer side of the concave-convex die (6) being provided with a stripper plate (9) elastically connected to the upper die base (1); a blanking die (10) corresponding to the concave-convex die (6) being fixedly provided on the lower die base (2), a flanging die (11) being fixedly provided on the inner side of the blanking die (10), and a punching die insert (12) being provided in the middle of the flanging die (11).

2. The cover composite molding die according to claim 1, characterized in that: A material pushing assembly is provided between the concave and convex dies (6) and the stretching concave die (7).

3. The cover composite molding die according to claim 2, characterized in that: The pusher assembly comprises a mounting block (13) and a pusher block (14) arranged between the concave-convex die (6) and the stretching concave die (7); the pusher block (14) is slidably arranged below the mounting block (13); a pull rod (15) is arranged on the top of the pusher block (14); one end of the pull rod (15) passes through the mounting block (13) and the pad (4) and is connected to a top plate (16); a first spring (17) is arranged between the top plate (16) and the upper die base (1).

4. The cover composite molding die according to claim 1, characterized in that: A edge pressing assembly is provided between the blanking die (10) and the flanging punch (11).

5. The cover composite molding die according to claim 4, characterized in that: The edge holding assembly comprises an edge holding ring (18) slidably arranged between the blanking die (10) and the flanging punch (11); a guide rod (19) slidably engaged with the lower die seat (2) is threadedly connected to the bottom of the edge holding ring (18); a second spring (20) is sleeved on the guide rod (19).

6. The capping composite molding die according to claim 1, characterized in that: The blanking die (10) is provided with a positioning pin (21).

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