A combined knife die structure that is easy to disassemble and assemble

Abstract

The utility model discloses a combined die structure that is easy to disassemble and assemble. The technical solution of the utility model is: it includes a base, a cover plate, a plurality of punches arranged between the base and the cover plate, and a plurality of fastening screws for fixing the base and the cover plate. The base is provided with a plurality of punch placement holes for the punches to be placed. The punch includes a fixed section arranged in the punch placement hole and a punching section passing through the cover plate. The punch placement hole is provided with a supporting platform abutting against the bottom of the fixed section. The diameter of the fixed section is larger than the diameter of the punching section. The cover plate is provided with a plurality of fixing holes for the punching section of the punch to extend out. The back of the cover plate abuts against the top of the fixed section. The solution provided by the utility model greatly shortens the replacement time of the punch, from one to two hours to a few minutes, and the overall punching operation efficiency is doubled.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a combined die structure which is convenient for disassembly and assembly. Background Art

[0002] The wear and tear of the die for sandpaper punching and punching is relatively large, and the punch often needs to be replaced after a few hours of continuous use. There are mainly two fixing schemes for the punch of this type of die in the prior art. One is the more traditional welding method, which directly welds multiple punches to the template. When the punch needs to be replaced after a period of use, the template and the punch are directly replaced together. This scheme is very expensive; the other is to embed the punch in the template, and the punch and the template are fixedly connected by interference fit. When the punch needs to be replaced, it is necessary to use a blunt tool to directly knock the punch off the template. This replacement method is time-consuming and labor-intensive, and the replacement process takes hours. The production efficiency is relatively low, and there is a cutting edge at the end of the punch, which is easy to cause injuries to the operator. Therefore, how to design a die structure that is convenient for quickly replacing the punch is exactly the problem that the inventor wants to solve. In addition, the weight of the template and the entire set of die cutters in the above scheme is very large, and two people are required to replace it. Utility Model Content

[0003] In view of the deficiencies in the prior art, the main purpose of the utility model is to provide a combined knife die structure that is easy to disassemble and assemble, which is convenient for disassembling and assembling a punch and improving the punching efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined knife die structure that is easy to disassemble and assemble, comprising a base, a cover plate, a plurality of punches arranged between the base and the cover plate, and a plurality of fastening screws for fixing the base and the cover plate, the base is provided with a plurality of punch placement holes for the punches to be placed, the punch comprises a fixed section arranged in the punch placement hole and a punching section passing through the cover plate, the punch placement hole is provided with a supporting platform abutting against the bottom of the fixed section, the diameter of the fixed section is larger than the diameter of the punching section, the cover plate is provided with a plurality of fixing holes for the punching section of the punch to extend out, and the back side of the cover plate abuts against the top of the fixed section.

[0005] Preferably, the length of the fixed section is not less than the length from the support platform in the punch placement hole to the base surface.

[0006] Preferably, the base is further provided with a base assembly hole, and a connecting screw is provided in the base assembly hole.

[0007] Preferably, the outer wall of the base is in a ring shape that can be surrounded by the outer ring knife.

[0008] The utility model has the following advantages over the prior art. The fixing method is to first place the punches one by one into the punch placement holes, and then dock the cover plate with the base. The cover plate is provided with fixing holes corresponding to all the punch placement holes, wherein the diameter of the punch placement holes is the same as or slightly larger than the diameter of the fixed section of the punch, so that the punches can be directly placed into the punch placement holes. The bottom of the punch abuts against the support platform, and the back of the cover plate abuts against the fixed section of the punch. In this way, each punch is fixed by the cover plate, the punch placement holes and the support platform, so that quick assembly can be achieved. The cover plate and the base are fixedly connected by fastening screws. When the punch needs to be replaced, it is only necessary to unscrew the fastening screws, remove the cover plate and the punch to be replaced, install the new punch and fix the cover plate. Compared with the prior art, this solution greatly shortens the replacement time of the punch, from one to two hours to a few minutes, and the overall punching efficiency is doubled. In addition, the thickness of the base and the cover in this solution is greatly reduced compared with the prior art, and the overall weight is reduced by about 80%. It can be operated by one person, saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The structure diagram of a combined knife die structure that is convenient for disassembly and assembly of the utility model is shown in FIG. Figure 1 ;

[0010] Figure 2 The structure diagram of a combined knife die structure that is convenient for disassembly and assembly of the utility model is shown in FIG. Figure 2 ;

[0011] Figure 3 This is a partial exploded view of a combined knife die structure that is convenient for disassembly and assembly according to the utility model;

[0012] Figure 4 This is a structural schematic diagram of a combined knife die structure that is easy to disassemble and assemble according to the utility model (Example 2).

[0013] In the figure: 1. base; 11. punch placement hole; 12. support platform; 13. base assembly hole; 2. cover plate; 21. fixing hole; 3. punch; 31. fixing section; 32. punching section; 4. fastening screw; 5. connecting screw. DETAILED DESCRIPTION

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] like Figures 1 to 4As shown, a combined knife die structure that is easy to disassemble and assemble includes a base 1, a cover plate 2, a plurality of punches 3 arranged between the base 1 and the cover plate 2, and a plurality of fastening screws 4 for fixing the base 1 and the cover plate 2. The base 1 is provided with a plurality of punch placement holes 11 for the punches 3 to be placed. The punch 3 includes a fixing section 31 arranged in the punch placement hole 11 and a punching section 32 passing through the cover plate 2. A supporting platform 12 abutting against the bottom of the fixing section 31 is provided in the punch placement hole 11. The diameter of the fixing section 31 is larger than the diameter of the punching section 32. The cover plate 2 is provided with a plurality of fixing holes 21 for the punching section 32 of the punch 3 to extend out. The back side of the cover plate 2 abuts against the top of the fixing section 31.

[0016] The present invention provides a combined die structure that is convenient for assembly and disassembly. The fixing method is as follows: first, the punches 3 are placed one by one into the punch placement holes 11, and then the cover plate 2 is docked with the base 1. The cover plate 2 is provided with fixing holes 21 corresponding to all the punch placement holes 11, wherein the diameter of the punch placement holes 11 is the same as or slightly larger than the diameter of the fixed section 31 of the punch 3, so that the punch 3 can be directly placed into the punch placement hole 11, the bottom of the punch 3 is in contact with the support platform 12, and the back of the cover plate 2 is in contact with the fixed section 31 of the punch 3. In this way, each punch 3 is limited and fixed by the cover plate 2, the punch placement hole 11 and the support platform 12, so that quick assembly is achieved. The cover plate 2 and the base 1 are fixedly connected by the fastening screws 4. When the punch 3 needs to be replaced, it is only necessary to unscrew the fastening screws 4, remove the cover plate 2 and the punch 3 to be replaced, install the new punch 3 and fix the cover plate 2. Compared with the prior art, this solution greatly shortens the replacement time of the punch 3 from one to two hours to a few minutes, and the overall punching efficiency is doubled. In addition, the thickness of the base 1 and the cover plate 2 in this solution is greatly reduced compared with the prior art, and the overall weight is reduced by about 80%. It can be operated by one person, saving manpower.

[0017] Preferably, the length of the fixing section 31 is not less than the length from the supporting platform 12 in the punch placement hole 11 to the surface of the base 1 .

[0018] The top of the fixing section 31 can be just flush with the surface of the base 1 or slightly protrude from the surface of the base 1 , as long as it can be ensured that the back of the cover plate 2 can completely cover the fixing section 31 .

[0019] Preferably, the base 1 is further provided with a base assembly hole 13 , and a connecting screw 5 is provided in the base assembly hole 13 .

[0020] The arrangement of the assembly holes of the base 1 and the connecting screws 5 can effectively fix the base 1 to the mold.

[0021] Preferably, the outer wall of the base 1 is in a ring shape that can be surrounded by the outer ring knife.

[0022] The outer ring knife can be arranged on the annular outer side wall of the base 1, and the outer ring knife can be fixed by other clamping mechanisms. The annular arrangement can ensure the roundness of the outer ring knife and can also provide auxiliary support for the outer ring knife.

[0023] Refer to the attached Figures 1 to 3 The structure diagram of the first embodiment is shown in FIG. 1 . A lap joint is provided on the base 1 outside the installation area of ​​the punch 3. The outer ring cutter can be lapped on the lap joint and then arranged around the outer wall of the base 1. Figure 4 In the second embodiment, the outer ring cutter can be directly sleeved on the outer wall of the base 1 .

[0024] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A combined die structure that is easy to disassemble and assemble, characterized in that: It includes a base, a cover plate, a plurality of punches arranged between the base and the cover plate, and a plurality of fastening screws for fixing the base and the cover plate. The base is provided with a plurality of punch placement holes for the punches to be placed. The punch includes a fixing section arranged in the punch placement hole and a punching section passing through the cover plate. A supporting platform abutting against the bottom of the fixing section is arranged in the punch placement hole. The diameter of the fixing section is larger than the diameter of the punching section. The cover plate is provided with a plurality of fixing holes for the punching section of the punch to extend out. The back side of the cover plate abuts against the top of the fixing section.

2. The combined die structure for easy assembly and disassembly according to claim 1, characterized in that: The length of the fixed section is not less than the length from the support platform in the punch placement hole to the base surface.

3. The combined knife die structure that is easy to disassemble and assemble according to claim 1 is characterized in that: The base is also provided with a base assembly hole, and a connecting screw is arranged in the base assembly hole.

4. The combined knife die structure that is easy to disassemble and assemble according to claim 1 is characterized in that: The outer wall of the base is in a ring shape that can be surrounded by the outer ring knife.

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