Punching die

Abstract

The utility model relates to a punching die which comprises a base, a pressing plate and an ejector rod installation base, a lower die base is fixedly arranged at the top of the base, a tubular punching tool is fixedly arranged at the top of the lower die base, the pressing plate is connected to the upper portion of the lower die base through a first spring, a shaping groove is formed in the pressing plate in a penetrating mode, and the ejector rod installation base is connected with the lower die base through a second spring. The ejector rod mounting base is connected to the inner side of the base through a second spring and located below the lower die base, an ejector rod matched with the punching tool is fixedly arranged at the top of the ejector rod mounting base, the top end of the ejector rod penetrates through the lower die base and extends into the punching tool, and the ejector rod is fixedly arranged on the ejector rod mounting base. The bottom of the pressing plate is further fixedly connected with a plurality of sets of push rods used for pushing the ejector rod mounting base to move downwards. Waste materials in the tubular punching cutter can be automatically discharged through the ejector rod capable of moving up and down, manual waste discharging is not needed, production efficiency is improved, and labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to a punching die, belonging to the field of punching die technology. Background Technology

[0002] With the continuous improvement of people's living standards and health requirements, the demand for health care products and sports equipment is also increasing. Among them, breathable insoles, soles, and breathable shoulder and knee supports are widely favored by health-conscious and athletic individuals. These breathable products, such as insoles, require perforation during processing, which necessitates the use of a perforation die. The tubular perforation tool on the die makes circumferential cuts in certain areas of the insole to create ventilation holes.

[0003] After punching holes in shoe insoles, the waste material cut off during circumferential cutting falls into the tubular punching tool. When the waste material accumulates to a certain amount, it can clog the tool, affecting the punching quality. The traditional method is to remove the tubular punching tool and manually remove the waste material using an air gun or ejector pin, which not only reduces production efficiency but also increases labor costs.

[0004] Therefore, the research objective of this utility model is to provide a punching die that can automatically discharge waste material from the tubular punching tool and avoid clogging of the tubular punching tool. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this utility model provides a punching die that automatically discharges waste material from the tubular punching tool via a vertically movable ejector rod, eliminating the need for manual waste removal. This not only improves production efficiency but also reduces labor costs.

[0006] To solve the problems of the existing technology, the technical solution adopted by this utility model is as follows:

[0007] A punching die includes a base, a pressure plate, and a push rod mounting seat. A lower die base is fixedly mounted on the top of the base, and a tubular punching tool is fixedly mounted on the top of the lower die base. The pressure plate is connected above the lower die base by a first spring, and a shaping groove is provided through the pressure plate. The push rod mounting seat is connected to the inner side of the base by a second spring and is located below the lower die base. A push rod that cooperates with the punching tool is fixedly mounted on the top of the push rod mounting seat. The top end of the push rod passes through the lower die base and extends into the interior of the punching tool. Several sets of push rods for pushing the push rod mounting seat downward are also fixedly connected to the bottom of the pressure plate.

[0008] Furthermore, the two ends of the inner side of the shaping groove are provided with a feeding platform for placing materials, and the punching tool passes through the two feeding platforms.

[0009] Furthermore, the lower mold base includes a lower template and a shaping template. The lower template is fixedly connected to the base by bolts. A first through hole is provided on the lower template for the push rod to move up and down. The shaping template is fixedly connected to the top of the lower template by bolts. The shaping template cooperates with the shaping groove. The punching cutter is arranged in a specific shape on the top of the shaping template.

[0010] Furthermore, the top four corners of the lower template are provided with a first groove, and the bottom four corners of the pressure plate are respectively provided with a second groove that cooperates with the first groove. The bottom end of the first spring is located in the first groove, and its top end is located in the second groove.

[0011] Furthermore, a first limiting guide rod is fixedly connected to both sides of the bottom of the pressure plate, and a first limiting block is provided at the bottom end of the first limiting guide rod through the lower template; a second through hole is provided on the lower template for the first limiting guide rod to move up and down, and the first limiting guide rod and the second through hole are configured to be clearance fit.

[0012] Furthermore, the push rod mounting base includes a first clamping plate and a second clamping plate. The bottom four corners of the first clamping plate are respectively provided with limiting posts. The second clamping plate is fixedly connected to the top of the first clamping plate by bolts. The bottom end of the push rod is integrally provided with a disc. The disc is located between the first clamping plate and the second clamping plate and is clamped and fixed by the first clamping plate and the second clamping plate. The top end of the push rod passes through the second clamping plate and extends into the interior of the punching tool.

[0013] Furthermore, the base is configured as a box structure with an open top, and the bottom four corners of the inner side of the base are respectively provided with a third groove that cooperates with the limiting post. The bottom end of the second spring is located in the third groove, and its top end is sleeved on the outside of the limiting post.

[0014] Furthermore, a second limiting guide rod is fixedly connected to the bottom of the lower template. The bottom end of the second limiting guide rod passes through the second clamping plate and the first clamping plate and extends to the bottom of the first clamping plate.

[0015] Furthermore, a third through hole is provided through the first clamping plate and the second clamping plate to allow the second limiting guide rod to move up and down, and the second limiting guide rod and the third through hole are configured to be clearance fit.

[0016] Furthermore, when the punching die is in the initial state, the top end of the push rod extends beyond the top end of the punching tool; when the punching die is in the punching state, the top end of the push rod retracts to the top end of the punching tool.

[0017] The beneficial effects of this utility model are as follows: 1. The waste material inside the tubular punching tool is automatically discharged through the vertically movable push rod, eliminating the need for manual waste removal, which not only improves production efficiency but also reduces labor costs; 2. The punching tool is detachably installed on the lower template through the shaping template, making it very convenient to replace the punching tool to adapt to punching of products of different shapes or types; 3. The vertical movement of the pressure plate is limited by the first limiting guide rod, preventing the pressure plate from shifting position during vertical movement and improving punching accuracy; 4. The vertical movement of the push rod mounting seat is limited by the second limiting guide rod, preventing the push rod mounting seat from shifting position during vertical movement, thus preventing the push rod from shifting position during vertical movement, allowing the push rod to move smoothly up and down inside the punching tool without colliding with it; 5. The disc at the bottom of the push rod is clamped and fixed by the first and second clamping plates, eliminating the need to thread the push rods onto the push rod mounting seats one by one, achieving quick installation of the push rods and facilitating maintenance and replacement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a utility model Figure 1 Side view.

[0020] Figure 3 This is an exploded view of the structure of this utility model.

[0021] Figure 4 This is a utility model Figure 3 Side view.

[0022] Figure 5 This is a schematic diagram of the structure of the top of the pressure plate of this utility model.

[0023] Figure 6 This is a schematic diagram of the bottom structure of the pressure plate of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the top of the lower mold base of this utility model.

[0025] Figure 8 This is a schematic diagram of the top structure of the shaping template of this utility model.

[0026] Figure 9 This is a schematic diagram of the top structure of the top rod mounting base of this utility model.

[0027] Figure 10 This is a utility model Figure 9 Side view.

[0028] Figure 11 This is a schematic diagram of the top rod of this utility model.

[0029] Figure 12 This is a structural schematic diagram of the base of this utility model.

[0030] The components include: base 1, pressure plate 2, push rod mounting seat 3, lower mold base 4, punching tool 5, first spring 6, shaping groove 7, second spring 8, push rod 9, push rod 10, feeding platform 701, lower template 401, shaping template 402, first through hole 4011, first groove 4012, second groove 201, first limiting guide rod 202, first limiting block 2021, second through hole 4013, first clamping plate 301, second clamping plate 302, limiting post 3011, disc 901, third groove 101, second limiting guide rod 4014, and third through hole 3012. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the following description is provided in conjunction with the appendix. Figure 1-12 Further analysis of this utility model is then conducted.

[0032] like Figure 1-12 As shown, a punching die includes a base 1, a pressure plate 2, and a push rod mounting seat 3. A lower die base 4 is fixedly mounted on the top of the base 1, and a tubular punching cutter 5 is fixedly mounted on the top of the lower die base 4. The pressure plate 2 is connected to the upper part of the lower die base 4 by a first spring 6, and a shaping groove 7 is provided through the pressure plate 2. The push rod mounting seat 3 is connected to the inner side of the base 1 by a second spring 8 and is located below the lower die base 4. A push rod 9 that cooperates with the punching cutter 5 is fixedly mounted on the top of the push rod mounting seat 3. The top end of the push rod 9 passes through the lower die base 4 and extends into the interior of the punching cutter 5. Several sets of push rods 10 for pushing the push rod mounting seat 3 downward are also fixedly connected to the bottom of the pressure plate 2.

[0033] In this embodiment, preferably, the two ends of the inner side of the shaping groove 7 are provided with a feeding platform 701 for placing materials. The punching cutter 5 passes through the two feeding platforms 701. When punching, materials such as insoles or shoulder pads are placed on the feeding platforms 701 at both ends of the inner side of the shaping groove 7. When punching, the upper mold and the punch that cooperates with the feeding platform 701 move downward and press against the feeding platform 701 to clamp and fix the material, so that the material will not shift position during punching.

[0034] In this embodiment, preferably, the lower mold base 4 includes a lower template 401 and a shaping template 402. The lower template 401 is fixedly connected to the base 1 by bolts. A first through hole 4011 is provided through the lower template 401 for the push rod 10 to move up and down, so that the push rod 10 can smoothly push the top rod mounting seat 3 downward, thereby driving the top rod 9 downward. The shaping template 402 is fixedly connected to the top of the lower template 401 by bolts, and the shaping template 402 cooperates with the shaping groove 7. The punching cutters 5 are arranged in a specific shape on the top of the shaping template 402 to facilitate punching at different positions of the material. At the same time, the punching cutters 5 are detachably mounted on the lower template 401 through the shaping template 402, which makes it very convenient to replace the punching cutters 5 to adapt to punching of products of different shapes or types.

[0035] In this embodiment, preferably, the top four corners of the lower template 401 are provided with a first groove 4012, and the bottom four corners of the pressure plate 2 are respectively provided with a second groove 201 that cooperates with the first groove 4012. The bottom end of the first spring 6 is located in the first groove 4012, and its top end is located in the second groove 201. The function of the first groove 4012 and the second groove 201 is to limit and fix the two ends of the first spring 6 to prevent the first spring 6 from deviating.

[0036] In this embodiment, preferably, a first limiting guide rod 202 is fixedly connected to both sides of the bottom of the pressure plate 2. The function of the first limiting guide rod 202 is to prevent the pressure plate 2 from shifting position during up and down movement, ensuring punching accuracy. The bottom end of the first limiting guide rod 202 passes through the lower template 401 and is provided with a first limiting block 2021. The function of the first limiting block 2021 is to abut against the bottom of the lower template 401 when the pressure plate 2 moves upward and resets under the elastic force of the first spring 6, preventing the pressure plate 2 from moving excessively upward. A second through hole 4013 is provided through the lower template 401 for the first limiting guide rod 202 to move up and down. The first limiting guide rod 202 and the second through hole 4013 are configured with a clearance fit.

[0037] In this embodiment, preferably, the top rod mounting base 3 includes a first clamping plate 301 and a second clamping plate 302. The bottom four corners of the first clamping plate 301 are respectively provided with limiting posts 3011. The second clamping plate 302 is fixedly connected to the top of the first clamping plate 301 by bolts. The bottom end of the top rod 9 is integrally provided with a disc 901. The disc 901 is disposed between the first clamping plate 301 and the second clamping plate 302 and is clamped and fixed by the first clamping plate 301 and the second clamping plate 302. The top end of the top rod 9 passes through the second clamping plate 302 and extends into the interior of the punching tool 5. The disc 901 at the bottom end of the top rod 9 is clamped and fixed by the first clamping plate 301 and the second clamping plate 302. It is not necessary to thread the top rod 9 onto the top rod mounting base 3 one by one, which realizes the quick installation of the top rod 9 and facilitates maintenance and replacement.

[0038] In this embodiment, preferably, the base 1 is configured as a box structure with an open top. The bottom four corners of the inner side of the base 1 are respectively provided with third grooves 101 that cooperate with the limiting post 3011. The bottom end of the second spring 8 is located in the third groove 101, and its top end is sleeved on the outside of the limiting post 3011. The function of the third groove 101 and the limiting post 3011 is to limit and fix the two ends of the second spring 8 to prevent the second spring 8 from deviating.

[0039] In this embodiment, preferably, the bottom of the lower template 401 is also fixedly connected to a second limiting guide rod 4014, the bottom end of the second limiting guide rod 4014 passes through the second clamping plate 301 and the first clamping plate 302, and extends to the bottom of the first clamping plate 301.

[0040] In this embodiment, preferably, the first clamping plate 301 and the second clamping plate 302 are provided with a third through hole 3012 for the second limiting guide rod 4014 to move up and down. The second limiting guide rod 4014 and the third through hole 3012 are configured with a clearance fit. The function of the second limiting guide rod 4014 is to prevent the first clamping plate 301 and the second clamping plate 302 from shifting position during the up and down movement, that is, to prevent the push rod 9 from shifting position during the up and down movement, so that the push rod 9 can move up and down smoothly in the punching tool 5 without colliding with the punching tool 5.

[0041] In this embodiment, preferably, when the punching die is in the initial state, the top end of the push rod 9 extends out of the top end of the punching cutter 5, and at this time the upper die has not yet applied downward pressure to the pressure plate 2; when the punching die is in the punching state, the top end of the push rod 9 retracts to the top end of the punching cutter 5, at this time the upper die applies downward pressure to the pressure plate 2, and drives the push rod mounting seat 3 to move downward through the push rod 10, so that the push rod 9 moves downward and retracts into the punching cutter 5.

[0042] The specific working principle of this utility model is as follows: During punching, materials such as insoles or shoulder pads are placed on the feeding platforms 701 at both ends of the inner side of the shaping groove 7. During punching, the upper die and the punch that cooperate with the feeding platform 701 move downward and press against the feeding platform 701 to clamp and fix the material, so that the material will not shift position during punching. The upper die continues to move downward, pushing the pressure plate 2 and the material downward together, and pushing the push rod 10 to push the push rod mounting seat 3 downward, so that the push rod 9 moves downward and retracts into the punching tool 5. When the material moves downward to a certain extent, the cutting edge at the top of the punching tool 5 punches the material. At this time, the waste generated by punching will inevitably fall into the inside of the punching tool 5. After punching is completed, the upper die moves upward and no longer applies downward pressure to the pressure plate 2. The pressure plate 2 moves upward and resets under the elastic force of the first spring 6, and the push rod 10 moves upward and no longer applies downward pressure to the push rod mounting plate 3. The push rod mounting plate 3 moves upward and resets under the elastic force of the second spring 8, and the push rod 9 moves upward and resets, extending from the top of the punching tool 5, and pushes the waste material out of the punching tool 5, realizing automatic waste discharge, thereby avoiding the waste material from clogging the tubular punching tool 5 and affecting the punching quality.

[0043] The technical solutions provided in this application have been described in detail above. The embodiments used in this document illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A punching die, characterized in that: The device includes a base, a pressure plate, and a push rod mounting seat. A lower die base is fixedly mounted on the top of the base, and a tubular punching tool is fixedly mounted on the top of the lower die base. The pressure plate is connected to the upper part of the lower die base by a first spring, and a shaping groove is provided through the pressure plate. The push rod mounting seat is connected to the inner side of the base by a second spring and is located below the lower die base. A push rod that cooperates with the punching tool is fixedly mounted on the top of the push rod mounting seat. The top end of the push rod passes through the lower die base and extends into the interior of the punching tool. Several sets of push rods for pushing the push rod mounting seat downward are also fixedly connected to the bottom of the pressure plate.

2. A punching die according to claim 1, characterized in that: The two ends of the inner side of the shaping groove are provided with material feeding platforms for placing materials; the punching tool passes through the two material feeding platforms.

3. A punching die according to claim 2, characterized in that: The lower mold base includes a lower template and a shaping template. The lower template is fixedly connected to the base by bolts, and a first through hole is provided on the lower template for the push rod to move up and down. The shaping template is fixedly connected to the top of the lower template by bolts, and the shaping template cooperates with the shaping groove. The punching cutters are arranged in a specific shape on the top of the shaping template.

4. A punching die according to claim 3, characterized in that: The top four corners of the lower template are provided with a first groove, and the bottom four corners of the pressure plate are respectively provided with a second groove that cooperates with the first groove; the bottom end of the first spring is located in the first groove, and its top end is located in the second groove.

5. A punching die according to claim 4, characterized in that: The bottom two sides of the pressure plate are fixedly connected with a first limiting guide rod, and the bottom end of the first limiting guide rod passes through the lower template and is provided with a first limiting block; the lower template is provided with a second through hole for the first limiting guide rod to move up and down, and the first limiting guide rod and the second through hole are configured to be clearance fit.

6. A punching die according to claim 5, characterized in that: The top rod mounting base includes a first clamping plate and a second clamping plate. The bottom four corners of the first clamping plate are respectively provided with limiting posts, and the second clamping plate is fixedly connected to the top of the first clamping plate by bolts.

7. A punching die according to claim 6, characterized in that: The bottom end of the push rod is integrally provided with a disc, which is located between the first clamping plate and the second clamping plate and is clamped and fixed by the first clamping plate and the second clamping plate; the top end of the push rod passes through the second clamping plate and extends into the interior of the punching tool.

8. A punching die according to claim 7, characterized in that: The base is configured as a box structure with an open top, and the bottom four corners of the inner side of the base are respectively provided with a third groove that cooperates with the limiting post; the bottom end of the second spring is located in the third groove, and its top end is sleeved on the outside of the limiting post.

9. A punching die according to claim 8, characterized in that: The bottom of the lower template is also fixedly connected to a second limiting guide rod. The bottom end of the second limiting guide rod passes through the second clamping plate and the first clamping plate and extends to the bottom of the first clamping plate. A third through hole is provided through the first clamping plate and the second clamping plate for the second limiting guide rod to move up and down. The second limiting guide rod and the third through hole are configured to be clearance fit.

10. A punching die according to claim 1, characterized in that: When the punching die is in the initial state, the top end of the push rod extends beyond the top end of the punching tool; when the punching die is in the punching state, the top end of the push rod retracts to the top end of the punching tool.

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