A reverse punching die structure
By designing a reverse punching die structure and a waste suction component, the problem of the flipping process in the processing of irregularly shaped products is solved, achieving efficient waste discharge and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU FUMINGWEI PRECISION METAL CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-29
AI Technical Summary
The existing mold structure requires an additional flipping process when processing irregularly shaped products, resulting in reduced production efficiency and increased costs.
The mold structure adopts reverse punching, guides the product downward punching through the guide block, and uses the waste suction component to suck out the waste through the through hole, avoiding the need for an additional flipping process.
It improves production efficiency, reduces mold costs, makes waste removal convenient and efficient, and makes the punching process more convenient.
Smart Images

Figure CN224294450U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a mold structure for reverse punching. Background Technology
[0002] like Figure 2 As shown, the normal punching die structure punches the product downwards through the upper punch. This structure can be applied to most products. However, for some irregularly shaped products, this structure requires an additional product flipping process in the pre-process, which reduces processing efficiency and increases costs, failing to meet customer requirements. Therefore, we propose a reverse punching die structure to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to address the aforementioned shortcomings by proposing a reverse punching mold structure.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A reverse punching die structure includes a lower die base and an upper module fixedly mounted on a machine tool. A pad is fixedly connected to the bottom of the upper module, and a guide post is fixedly connected to the top of the lower die base. The pad is slidably connected to the outside of the guide post. A pad block is fixedly connected to the bottom inner wall of the lower die base, and a punch is fixedly mounted on the top of the pad block. A die cavity is fixedly connected to the bottom of the pad plate, and a waste suction assembly is fixedly connected to one side of the pad plate.
[0006] In a preferred embodiment of this invention, the pad has an upper through hole on one side, the die has a lower through hole on the top, the upper through hole is connected to the lower through hole, and the upper through hole is connected to the material extraction end of the waste suction assembly.
[0007] In a preferred embodiment of this invention, a guide block is fixedly connected to the top of the pad, and the product is slidably sleeved inside the guide block.
[0008] As a preferred embodiment of this utility model, the bottom of the guide block is provided with a guide groove, and a floating block is slidably sleeved in the guide groove, with the floating block movably abutting between the pad block and the product.
[0009] In a preferred embodiment of this invention, a top rod is slidably disposed on the pad block, and the top rod movably abuts against the bottom of the buoyancy block.
[0010] As a preferred embodiment of this invention, a fixing plate is fixedly connected to the bottom of the pad, and the concave mold is locked to the bottom of the pad by the fixing plate.
[0011] In a preferred embodiment of this invention, a mounting base is fixedly connected to the top of the lower mold base, and the guide post is fixedly connected to the top of the mounting base.
[0012] In this utility model, the reverse punching mold structure is described in this paper, where the die is fixed on a fixed plate, the fixed plate and the waste suction assembly are locked on a pad, the pad is locked on an upper module, and the upper module is fixed on a machine tool. The entire upper mold slides up and down by guide pillars and is positioned with the entire lower mold. The guide pillars and pads are fixed on the lower mold base, and the punch is locked on the pad. The product is guided downward by the guide block for punching. The ejector rod can be driven upward by an external driving device. The ejector rod pushes the floating block upward to remove the product. The waste material after punching is sucked out through the lower through hole on the die and the upper through hole on the pad by the waste suction assembly connected to the air pipe, making waste discharge more convenient and efficient and improving the effect of use.
[0013] In this utility model, a reverse punching mold structure is described. The mold structure described herein can improve production efficiency and reduce mold costs. The punch moves upward and cuts material with the die, so that the product is punched. The waste material after punching is sucked out through the through holes on the die and the backing plate by the waste suction component connected to the air pipe, making reverse upward punching more convenient, without the need for an additional process to flip the product and punch downward.
[0014] This utility model has a reasonable structural design, which improves production efficiency and reduces mold costs. The punch moves upward and cuts the die, so that the product can be punched. The waste material after punching is sucked out by the air pipe connected to the waste suction component through the through holes on the die and the backing plate. This makes it more convenient to punch upward in reverse, without the need for an extra process to flip the product and punch downward. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a reverse punching mold structure proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of a reverse punching mold structure in the prior art.
[0017] In the diagram: 1. Lower mold base; 2. Guide pillar; 3. Backing plate; 4. Waste suction assembly; 5. Upper module; 6. Fixing plate; 7. Die; 8. Guide block; 9. Product; 10. Floating block; 11. Punch; 12. Backing block; 13. Ejector pin; 14. Lower through hole; 15. Upper through hole. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Reference Figures 1-2 A reverse punching mold structure includes a lower mold base 1 and an upper module 5 fixedly mounted on a machine tool. A pad 3 is fixedly connected to the bottom of the upper module 5. A guide post 2 is fixedly connected to the top of the lower mold base 1. The pad 3 is slidably connected to the outside of the guide post 2. A pad block 12 is fixedly connected to the bottom inner wall of the lower mold base 1. A punch 11 is fixedly mounted on the top of the pad block 12. A die 7 is fixedly connected to the bottom of the pad 3. A waste suction component 4 is fixedly connected to one side of the pad 3.
[0020] Furthermore, refer to Figure 1 The pad 3 has an upper through hole 15 on one side and a lower through hole 14 on the top of the die 7. The upper through hole 15 and the lower through hole 14 are connected. The upper through hole 15 is connected to the material extraction end of the waste suction assembly 4.
[0021] Using the above solution: the waste material after punching passes through the through holes on the die 7 and the pad 3, and is sucked out by the air pipe connected to the waste suction component 4, making it more convenient to punch upwards in reverse, without having to add an extra process to flip the product and punch downwards.
[0022] Furthermore, refer to Figure 1 A guide block 8 is fixedly connected to the top of the pad 12. The product 9 is slidably sleeved in the guide block 8. A guide groove is opened at the bottom of the guide block 8. A floating block 10 is slidably sleeved in the guide groove. The floating block 10 is movably abutted between the pad 12 and the product 9. A push rod 13 is slidably arranged on the pad 12. The push rod 13 is movably abutted against the bottom of the floating block 10. A fixing plate 6 is fixedly connected to the bottom of the pad 3. The die 7 is locked to the bottom of the pad 3 by the fixing plate 6.
[0023] Using the above scheme: the die 7 is fixed on the fixed plate 6, the fixed plate 6 and the waste suction assembly 4 are locked on the pad 3, the pad 3 is locked on the upper module 5, the upper module 5 is fixed on the machine tool, the entire upper die slides up and down by the guide post 2 and is positioned with the entire lower die, the guide post 2 and the pad block 12 are fixed on the lower die base 1, the punch 11 is locked on the pad block 12, the product 9 is guided downward by the guide block 8 to punch, the ejector rod 13 can be driven upward by an external driving device (such as a cylinder, hydraulic cylinder, servo motor and screw, etc.), the ejector rod 13 pushes the floating block 10 upward to make the product 9 unload.
[0024] Furthermore, a mounting base is fixedly connected to the top of the lower mold base 1, and the guide post 2 is fixedly connected to the top of the mounting base, which facilitates fixing the guide post 2 to the top of the lower mold base 1.
[0025] In this utility model, such as Figure 2As shown, this is the mold structure for normal punching. The upper punch 11 and the lower die cooperate to punch the product. The die 7 is fixed by the die fixing block, and the guide block 8 guides the product.
[0026] In this paper, the die 7 is fixed on the fixed plate 6, the fixed plate 6 and the waste suction assembly 4 are locked on the pad 3, the pad 3 is locked on the upper module 5, and the upper module 5 is fixed on the machine tool. The entire upper die slides up and down by the guide post 2 and is positioned with the entire lower die. The guide post 2 and the pad block 12 are fixed on the lower die base 1, the punch 11 is locked on the pad block 12, and the product 9 is guided downward by the guide block 8 to punch. The ejector rod 13 can be driven upward by an external driving device (such as a cylinder, hydraulic cylinder, servo motor and screw, etc.). The ejector rod 13 pushes the floating block 10 upward to make the product 9 unload. The waste material after punching is sucked out through the lower through hole 14 on the die 7 and the upper through hole 15 on the backing plate 3 by the air pipe connected to the waste suction component 4, making waste discharge more convenient and efficient and improving the effect of use. The mold structure in this paper can improve production efficiency and reduce mold cost. The punch 11 moves upward with the die 7 to cut the material, so that the product 9 completes the punching. The waste material after punching is sucked out through the through holes on the die 7 and the backing plate 3 by the air pipe connected to the waste suction component 4, making reverse upward punching more convenient, without the need for additional processes to flip the product and punch downward.
Claims
1. A die structure for reverse punching, characterized in that, The assembly includes a lower die base (1) and an upper module (5) fixedly mounted on a machine tool. A pad (3) is fixedly connected to the bottom of the upper module (5). A guide post (2) is fixedly connected to the top of the lower die base (1). The pad (3) is slidably connected to the outside of the guide post (2). A pad block (12) is fixedly connected to the bottom inner wall of the lower die base (1). A punch (11) is fixedly mounted on the top of the pad block (12). A die cavity (7) is fixedly connected to the bottom of the pad (3). A waste suction assembly (4) is fixedly connected to one side of the pad (3).
2. The mold structure for reverse punching according to claim 1, characterized in that, The pad (3) has an upper through hole (15) on one side, and the die (7) has a lower through hole (14) on the top. The upper through hole (15) is connected to the lower through hole (14), and the upper through hole (15) is connected to the material extraction end of the waste suction assembly (4).
3. The mold structure for reverse punching according to claim 1, characterized in that, A guide block (8) is fixedly connected to the top of the pad (12), and the product (9) is slidably sleeved inside the guide block (8).
4. The mold structure for reverse punching according to claim 3, characterized in that, The bottom of the guide block (8) is provided with a guide groove, and a floating block (10) is slidably sleeved in the guide groove. The floating block (10) is movably abutted between the pad block (12) and the product (9).
5. The mold structure for reverse punching according to claim 4, characterized in that, A top rod (13) is slidably disposed on the pad (12), and the top rod (13) is movably abutting against the bottom of the buoy (10).
6. The mold structure for reverse punching according to claim 1, characterized in that, A fixing plate (6) is fixedly connected to the bottom of the pad (3), and the die (7) is locked to the bottom of the pad (3) by the fixing plate (6).
7. The mold structure for reverse punching according to claim 1, characterized in that, The top of the lower mold base (1) is fixedly connected to a mounting base, and the guide post (2) is fixedly connected to the top of the mounting base.