Pin terminal puncturing and blanking structure

Abstract

The utility model discloses a pin terminal puncturing and blanking structure, which comprises an upper die assembly, a puncturing module arranged in the upper die assembly, a demoulding assembly arranged at the lower end of the upper die assembly, a guide insert arranged in the demoulding assembly, a lower die assembly arranged at the lower end of the demoulding assembly, and a placing groove arranged between the demoulding assembly and the lower die assembly. A lower die part set is arranged in the lower die assembly and comprises a lower die knife edge insert, triangular prism-shaped cutters are arranged in the two sides of the lower die knife edge insert in the width direction, the included angle between the inclined faces of the two sides of each cutter corresponds to the stripping channel, and the cutter head direction of each cutter is parallel to the length direction of the lower die knife edge insert. According to the punching die, the punching module is matched with the cutter, so that waste materials are directly cut off, the waste materials directly slide down along the stripping channel, the waste materials do not need to be manually removed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, in particular to a pin terminal puncturing and blanking structure. Background Art

[0002] Stamping is a pressure processing method that uses a stamping die to apply pressure to the material in a press at room temperature, causing it to plastically deform or separate, thereby obtaining parts of the desired shape and size. This processing method is usually called cold stamping. The stamping die is a process equipment used in stamping to process materials into workpieces or semi-finished products. It is a key process equipment in industrial production. The production of parts using stamping dies can use rolled steel plates or steel strips produced in large quantities by metallurgical plants as blanks, and no heating is required during production. It has the advantages of high production efficiency, good quality, light weight, and low cost. Cold stamping products can be found everywhere in aircraft, automobiles, tractors, motors, electrical appliances, instruments, meters, and daily necessities.

[0003] Chinese patent literature discloses "CN210148292U, Puncture and blanking structure for pin-needle fish-eye holes in a punch die", which first presses the product downward through the middle die insert; continues to press down so that the middle die insert presses the product until it is firmly attached to the lower die blade insert; the die continues to descend, and the punch cuts the fish-eye hole waste of the product.

[0004] However, after the above-mentioned mold punches the product, the middle template and the lower template need to be separated to clean the waste, and then the product to be punched is placed in it before punching the subsequent product. To remove the middle template, the upper mold base, upper pad, upper template, middle mold pad and middle template must be separated together. This step needs to be repeated after each punching, resulting in low efficiency. Utility Model Content

[0005] The purpose of the present invention is to provide a pin terminal piercing and blanking structure to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A pin terminal puncture and blanking structure comprises an upper mold assembly, the upper mold assembly is provided with a puncture module, the lower end of the upper mold assembly is provided with a demoulding assembly, the demoulding assembly is provided with a guide insert, the lower end of the demoulding assembly is provided with a lower mold assembly, a placement groove is provided between the demoulding assembly and the lower mold assembly, the lower mold assembly is provided with a lower mold parts group, the lower mold parts group includes a lower mold blade insert, the lower end of the lower mold blade insert is connected to a stripping channel, and cutters with a triangular prism shape are provided on both sides along the width direction of the lower mold blade insert, the angle between the inclined surfaces on both sides of the cutter corresponds to the stripping channel, the blade head direction of the cutter is parallel to the length direction of the lower mold blade insert, and the puncture module, guide insert, lower mold blade insert and stripping channel are correspondingly arranged.

[0008] Furthermore, the puncture module includes a fixing seat, in which a puncture punch is installed, and the lower end of the puncture punch passes through the guide insert and extends into the lower die blade insert.

[0009] Furthermore, the demolding assembly includes a stripping plate for installing the guide insert, the upper end surface of the stripping plate is provided with at least one card slot, the guide insert is provided with a card block corresponding to the card slot, the stripping plate is provided with a backing plate, and the backing plate is provided with a through hole corresponding to the guide insert.

[0010] Furthermore, both ends of the placement trough are provided with feeding ports connected to the outside.

[0011] Furthermore, the top of the lower mold assembly is provided with four positioning holes 1, the bottom of the demoulding assembly is provided with four positioning holes 2 corresponding to the positioning holes 1, and four positioning columns are inserted into the four positioning holes 1.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides cutters with a triangular prism shape on both sides along the width direction of the lower die blade insert. The angle between the inclined surfaces on both sides of the cutter corresponds to the stripping channel, which facilitates the waste to slide into the stripping channel. The direction of the cutter head is parallel to the length direction of the lower die blade insert. After the puncture module punches and forms the strip, it continues to move downward until it cooperates with the cutter to squeeze off the two ends of the waste, ensuring that the waste after the strip is punched falls into the waste collection box along the stripping channel. There is no need to manually remove the waste, thereby improving work efficiency.

[0014] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : Overall structure diagram of the utility model.

[0016] Figure 2 : Exploded view of the utility model.

[0017] Figure 3 : A cross-sectional view of the present invention.

[0018] Figure 4 : The structural diagram of the lower die assembly of the present utility model.

[0019] Figure 5 : Exploded view of the stripping plate of the present invention.

[0020] Figure 6 :The positioning column structure of the utility model Figure 1 .

[0021] Figure 7 :The positioning column structure of the utility model Figure 2 .

[0022] Figure numerals: 1. Upper mold assembly; 2. Demolding assembly; 3. Lower mold assembly; 4. Piercing module; 5. Guide insert; 6. Placement groove; 7. Lower mold parts group; 8. Stripping channel; 21. Stripping back plate; 22. Stripping plate; 23. Positioning hole 2; 31. Positioning hole 1; 32. Positioning column; 41. Fixed seat; 42. Piercing punch; 51. Block; 61. Feed port; 71. Lower mold blade insert; 72. Cutter; 211. Through hole; 221. Slot. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] Please refer to Figure 1-7 ;

[0025] A pin terminal puncture and blanking structure, including an upper mold assembly 1, a puncture module 4 is provided in the upper mold assembly 1, the puncture module 4 is used to punch the strip into a preset shape, the lower end of the upper mold assembly 1 is provided with a demoulding assembly 2, the demoulding assembly 2 is provided with a guide insert 5, the guide insert 5 can guide the puncture module 4 to avoid misalignment of the position, the puncture module 4 directly hits the demoulding assembly 2 during punching, and damages the puncture module 4, which is conducive to the smooth punching process of the puncture structure of the punching mold, the lower end of the demoulding assembly 2 is provided with a lower mold assembly 3, and a placement groove 6 is provided between the demoulding assembly 2 and the lower mold assembly 3. The slot 6 is used to place the strip material, and the lower die assembly 3 is provided with a lower die parts group 7, and the lower die parts group 7 includes a lower die blade insert 71. The lower die blade insert 71 is adapted to the shape of the preset product, and the strip material is punched into the shape of the lower die blade insert 71. The lower end of the lower die blade insert 71 is connected with a stripping channel 8 for the drop of waste material. Since the bottom of the lower die blade insert 71 needs to be supported, the lower die assembly 3 is also provided with a structure with the same shape as the lower die blade insert 71 for supporting the lower die blade insert 71. Since the structure is integrated with the lower die assembly 3, the two ends of the waste material after punching are not broken, and the waste material cannot fall to The stripping channel 8 is formed by the cutting blade 72 and the cutting blade 73. The cutting blade 72 is provided with a cutting blade 72 on both sides of the width direction of the lower die blade insert 71. The angle between the inclined surfaces on both sides of the cutting blade 72 corresponds to the stripping channel 8, which is convenient for the waste to slide into the stripping channel. The cutting head direction of the cutting blade 72 is parallel to the length direction of the lower die blade insert 71. After the puncture module 4 punches the strip into shape, it continues to move downward until it cooperates with the cutting blade 72 to squeeze off the two ends of the waste, ensuring that the waste after the strip is punched falls into the waste collection box along the stripping channel 8. The puncture module 4, the guide insert 5, the lower die blade insert 71 and the stripping channel 8 are correspondingly arranged. Specifically, the strip is placed The strip is placed in the placement groove 6, and then the demoulding assembly 2 and the lower mold assembly 3 are molded together, and then the upper mold assembly 1 and the demoulding assembly 2 are molded together. When the mold is closed, the puncture module 4 moves downward along the guide insert 5 to contact the strip, and the bottom of the puncture module 4 presses the strip, and then moves downward to puncture the strip. After the strip is punctured, the shape of the lower mold blade insert 71 is formed and remains in the placement groove 6, and the waste falls to the top of the cutter 72. The puncture module 4 continues to move downward to cut off the waste. The cut waste falls along the stripping channel 8 into the waste collection box, and the strip after punching and forming is removed. There is no need to manually remove the waste, which improves work efficiency.

[0026] In this embodiment, the puncture module 4 includes a fixed seat 41, in which a puncture punch 42 is installed. The lower end of the puncture punch 42 passes through the guide insert 5 and extends to the lower mold blade insert 71. When the puncture punch 42 moves downward, the guide insert 5 guides the downward movement of the puncture punch 42 and punches the strip through the puncture punch 42.

[0027] Furthermore, the demolding assembly 2 includes a stripping plate 22 for installing the guide insert 5, and the upper end surface of the stripping plate 22 is provided with at least one card slot 221, and the guide insert 5 is provided with a card block 51 corresponding to the card slot 221. Preferably, there are two card blocks 51 and two card slots 221, which are arranged in two adjacent directions. The card blocks 51 and the card slots 221 are arranged correspondingly up and down, and the card blocks 51 abut on the slot position of the card slot 221. The stripping plate 22 is provided with a backing plate 21, and the backing plate 21 is provided with a through hole 211 corresponding to the guide insert 5. The shape and size of the through hole 211 are the same as the channel through which the guide insert 5 is used to pierce the punch 42, and are connected so that the through hole will not block the downward movement of the piercing punch 42. At the same time, it is used to support the guide insert 5 to prevent the guide insert 5 from moving up and down during punching.

[0028] In this embodiment, both ends of the placement groove 6 are provided with feed ports 61 connected to the outside. After the strip is punched, it can be directly drawn out from the feed port 61 and then replaced with other strips to be punched. There is no need to open the mold to draw out the strip, thereby improving processing efficiency.

[0029] Furthermore, four positioning holes 31 are provided on the top of the lower mold assembly 3, and four positioning holes 23 corresponding to the positioning holes 31 are provided on the bottom of the demoulding assembly 2. Four positioning posts 32 are inserted into the four positioning holes 31. Positioning is performed by the positioning posts 32 and the positioning holes 23 during mold closing. The positioning posts 32 are made of plastic. Since the positioning posts 32 are made of plastic, if misalignment occurs during mold closing, the positioning posts 32 will be broken, which reminds the operator that misalignment occurs and needs to be dealt with in time. In addition, the positioning posts 32 are directly inserted into the positioning holes 31 and are not integrally formed with the lower mold assembly 3. If the positioning posts 32 are broken due to misalignment during mold closing, the positioning posts 32 can be replaced and reinserted into the positioning holes 31 to achieve positioning during mold closing.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A pin terminal piercing and blanking structure, comprising an upper die assembly (1), characterized in that: The upper mold assembly (1) is provided with a puncture module (4), the lower end of the upper mold assembly (1) is provided with a demoulding assembly (2), the demoulding assembly (2) is provided with a guide insert (5), the lower end of the demoulding assembly (2) is provided with a lower mold assembly (3), a placement groove (6) is provided between the demoulding assembly (2) and the lower mold assembly (3), the lower mold assembly (3) is provided with a lower mold part group (7), and the lower mold part group (7) includes a lower mold blade insert (71). The lower end of the lower die blade insert (71) is connected to a stripping channel (8), and cutters (72) with a triangular prism shape are provided on both sides along the width direction of the lower die blade insert (71). The angle between the inclined surfaces on both sides of the cutter (72) corresponds to the stripping channel (8), and the direction of the cutter head of the cutter (72) is parallel to the length direction of the lower die blade insert (71). The puncture module (4), the guide insert (5), the lower die blade insert (71) and the stripping channel (8) are correspondingly arranged.

2. A pin terminal piercing and blanking structure according to claim 1, characterized in that: The puncture module (4) comprises a fixing seat (41), a puncture punch (42) is installed in the fixing seat (41), and the lower end of the puncture punch (42) passes through the guide insert (5) and extends into the lower die blade insert (71).

3. The pin terminal piercing and blanking structure according to claim 1, characterized in that: The demoulding assembly (2) comprises a stripping plate (22) for mounting a guide insert (5); the upper end surface of the stripping plate (22) is provided with at least one card slot (221); the guide insert (5) is provided with a card block (51) corresponding to the card slot (221); the stripping plate (22) is provided with a backing plate (21); and the backing plate (21) is provided with a through hole (211) corresponding to the guide insert (5).

4. The pin terminal piercing and blanking structure according to claim 1, characterized in that: Both ends of the placement trough (6) are provided with feeding ports (61) communicating with the outside.

5. The pin terminal piercing and blanking structure according to claim 1, characterized in that: The top of the lower mold assembly (3) is provided with four positioning holes (31), and the bottom of the demoulding assembly (2) is provided with four positioning holes (23) corresponding to the positioning holes (31), and four positioning columns (32) are inserted into the four positioning holes (31).

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