Novel stamping die with negative angle

Abstract

The utility model discloses a novel stamping die with a negative angle, which comprises a base and a top seat, the upper end of the base is provided with a pair of guide telescopic columns, the telescopic ends of the guide telescopic columns are fixedly connected with the lower end of the top seat, the upper end of the base is provided with a lower die seat, and the lower end face of the top seat is correspondingly provided with an upper die seat. A plurality of positioning pins are mounted at the upper end of the lower die holder; and the slotting tool mechanism is arranged between the base and the top seat and is used for stamping the end part of the decorative strip to form a negative angle. The device is simple in structure, the decorative strip with the negative angle can be machined, the decorative strip can be positioned during machining, the machining precision is improved, the operation is simple, and the use requirements can be better met.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a novel stamping die with a negative angle. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping molds). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing separation or plastic deformation to obtain the desired parts. Existing stamping dies have difficulty handling uniquely shaped (negative angle) trims, easily causing surface wrinkling at bends, part deformation, and waste of raw materials and labor. They also have a certain impact on die life. Therefore, there is an urgent need for a new type of stamping die with negative angles. Utility Model Content

[0003] The purpose of this invention is to provide a novel stamping die with a negative angle to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A novel negative angle stamping die includes: a base and a top seat. A pair of guide telescopic columns are installed on the upper end of the base, and the telescopic ends of the guide telescopic columns are fixedly connected to the lower end of the top seat. A lower die seat is installed on the upper end of the base, and an upper die seat is installed on the lower end of the top seat at a corresponding position. Multiple positioning pins are installed on the upper end of the lower die seat. A cutting tool mechanism is installed between the base and the top seat for stamping a negative angle at the end of the trim strip.

[0006] As a preferred embodiment, the upper mold base is provided with a bent portion on the side near the inserting mechanism.

[0007] As a preferred embodiment, the inserting mechanism includes an upper inserting knife installed at the lower end of the top seat, a wedge-shaped seat installed at the upper end of the base, a pair of slides installed at the upper end of the wedge seat, a lower inserting knife slidably installed between the pair of slides, a connecting seat installed on the left side of the lower inserting knife, and a stamping head installed on the left side of the connecting seat.

[0008] As a preferred embodiment, the wedge-shaped seat is further provided with a reset groove, and a nitrogen spring is installed at the lower end of the lower insert blade, with the extension end of the nitrogen spring abutting against the inner wall of the left side of the reset groove. The nitrogen spring facilitates the reset of the lower insert blade.

[0009] As a preferred embodiment, a limiting seat is also installed at the upper right side of the wedge-shaped seat. By providing the limiting seat, the lower inserter can be effectively prevented from slipping.

[0010] As a preferred embodiment, the lower end of the upper inserter and the upper end of the lower inserter are chamfered at corresponding positions.

[0011] As a preferred embodiment, a limiting mechanism is also provided between the base and the top seat. The limiting mechanism includes multiple limiting posts 1 installed around the base. Each limiting post 1 has a limiting rod installed at its upper end. Limiting posts 2 are installed around the lower end of the top seat. Limiting insertion holes are opened at the lower ends of the limiting posts 2, and the limiting rods are inserted into the limiting insertion holes.

[0012] As a preferred embodiment, the upper end of the lower mold base is provided with multiple positioning grooves, and the lower end of the upper mold base is provided with multiple positioning posts at corresponding positions, with the positioning grooves inserted into the positioning posts.

[0013] Compared with existing technologies, the advantages of this invention are as follows: The stamping machine drives the top seat to move downwards, thereby lowering the upper die holder. This, combined with the lower die holder, clamps the trim strip. Simultaneously, the bending section bends the end of the trim strip. Then, the bending mechanism stamps the bent portion, forming a negative angle. The operation is simple, effectively preventing trim strip misalignment during stamping, improving stamping accuracy, and better meeting usage requirements. This invention has a simple structure, can process trim strips with negative angles, and allows for trim strip positioning during processing, improving processing accuracy. Its simple operation better meets usage needs. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall three-dimensional structure of a novel stamping die with a negative angle;

[0015] Figure 2 A three-dimensional structural diagram of the base position of a novel stamping die with a negative angle;

[0016] Figure 3 A three-dimensional structural diagram of the top seat position of a novel stamping die with a negative angle;

[0017] Figure 4 A three-dimensional structural diagram of the insert mechanism position of a novel stamping die with a negative angle;

[0018] Figure 5 This is a first-person exploded view of the insert mechanism of a novel stamping die with a negative angle.

[0019] Figure 6 This is a second-view exploded structural diagram of the insert mechanism of a novel stamping die with a negative angle.

[0020] In the diagram: 1. Base; 11. Lower mold base; 12. Guide telescopic column; 13. Positioning pin; 14. Positioning groove; 15. Positioning column; 2. Top seat; 21. Upper mold base; 22. Bending part; 3. Inserting knife mechanism; 31. Upper inserting knife; 32. Wedge seat; 33. Slide seat; 34. Lower inserting knife; 35. Connecting seat; 36. Punching head; 37. Limiting seat; 38. Nitrogen spring; 39. Reset groove; 4. Limiting mechanism; 41. Limiting column one; 42. Limiting rod; 43. Limiting column two; 44. Limiting insertion hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figures 1-6 A novel negative angle stamping die includes: a base 1 and a top seat 2. A pair of guide telescopic columns 12 are mounted on the upper end of the base 1, and the telescopic ends of the guide telescopic columns 12 are fixedly connected to the lower end of the top seat 2. A lower die seat 11 is mounted on the upper end of the base 1, and an upper die seat 21 is mounted on the corresponding position on the lower end of the top seat 2. Multiple positioning pins 13 are mounted on the upper end of the lower die seat 11. A cutting tool mechanism 3 is installed between the base 1 and the top seat 2, used to stamp the end of the trim strip with a negative angle. In this embodiment, a bending portion 22 is provided on the side of the upper die seat 21 near the cutting tool mechanism 3. In this embodiment, a stamping machine is also provided; the stamping operation can be performed by moving the upper die seat 21 downwards using the stamping machine.

[0023] The working principle of this utility model is as follows: In specific use, the trim strip is placed on the lower die base 11 and positioned by the positioning pin 13. Then, the top seat 2 is moved down by the stamping machine, thereby moving the upper die base 21 down. The trim strip can be clamped by the lower die base 11. At the same time, the bending part 22 can bend the end of the trim strip. Then, the bending part can be stamped by the inserting knife mechanism 3 to form a negative angle. The operation is simple and can effectively prevent the trim strip from shifting during the stamping process, improve the stamping accuracy, and better meet the needs of use.

[0024] As a further embodiment, the inserting mechanism 3 includes an upper inserting knife 31 installed at the lower end of the top seat 2, a wedge-shaped seat 32 installed at the upper end of the base 1, a pair of slide seats 33 installed at the upper end of the wedge seat 32, a lower inserting knife 34 slidably installed between the pair of slide seats 33, a connecting seat 35 installed on the left side of the lower inserting knife 34, and a stamping head 36 installed on the left side of the connecting seat 35. In this embodiment, a reset groove 39 is also provided on the wedge seat 32, a nitrogen spring 38 is installed at the lower end of the lower inserting knife 34, and the extension end of the nitrogen spring 38 abuts against the inner wall of the left side of the reset groove 39. A limit seat 37 is also installed at the upper right side of the wedge seat 32. Chamfers are provided at corresponding positions at the lower end of the upper inserting knife 31 and the upper end of the lower inserting knife 34. By providing chamfers, when the upper inserting knife 31 contacts the lower inserting knife 34, it is convenient to push the lower inserting knife 34 to move, thereby pushing the stamping head 36 to move to complete the stamping work.

[0025] The working principle of the inserting knife mechanism 3 is as follows: the top seat 2 is moved down by the stamping machine. At this time, the upper inserting knife 31 moves down synchronously. When the chamfer at the lower end of the upper inserting knife 31 contacts the chamfer at the upper end of the lower inserting knife 34, the upper inserting knife 31 will push the lower inserting knife 34 to move. At this time, the nitrogen spring 38 is compressed, and the lower inserting knife 34 will push the stamping head 36 close to the end of the trim strip, thereby stamping the end of the trim strip to form a negative angle. After the stamping is completed, the top seat 2 is reset, the upper inserting knife 31 and the lower inserting knife 34 are separated, and the nitrogen spring 38 drives the lower inserting knife 34 to reset.

[0026] As a further embodiment, a limiting mechanism 4 is provided between the base 1 and the top seat 2. The limiting mechanism 4 includes a plurality of limiting posts 41 installed around the base 1. Each limiting post 41 has a limiting rod 42 installed at its upper end. Limiting posts 43 are installed around the lower end of the top seat 2. Limiting holes 44 are opened at the lower end of each limiting post 43. The limiting rod 42 is inserted into the limiting hole 44.

[0027] The working principle of the limiting mechanism 4 is as follows: by setting the limiting rod 42 in conjunction with the limiting insertion hole 44, the stability of the movement of the top seat 2 can be improved, thereby improving the stamping accuracy. When the upper mold seat 21 approaches the lower mold seat 11 to complete the mold closing, the top seat 2 can be supported by the contact between the first limiting post 41 and the second limiting post 43.

[0028] As a further solution, multiple positioning slots 14 are distributed and installed on the upper end of the lower die base 11, and multiple positioning posts 15 are correspondingly provided on the lower end of the upper die base 21. The positioning slots 15 are inserted into the positioning posts 14. By setting the positioning posts 15 in conjunction with the positioning slots 14, the accuracy of the upper die base 21 and the lower die base 11 when closing the mold can be improved, thereby improving the quality of negative angle stamping.

[0029] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

Claims

1. A novel stamping die with a negative angle, characterized in that, include: The base (1) and the top seat (2) are provided. A pair of guide telescopic columns (12) are installed on the upper end of the base (1). The telescopic ends of the guide telescopic columns (12) are fixedly connected to the lower end of the top seat (2). A lower mold seat (11) is installed on the upper end of the base (1). An upper mold seat (21) is installed on the lower end of the top seat (2). A plurality of positioning pins (13) are installed on the upper end of the lower mold seat (11). The inserting mechanism (3) is installed between the base (1) and the top seat (2) and is used to punch out a negative angle at the end of the trim strip.

2. The novel stamping die with negative angle according to claim 1, characterized in that: The upper mold base (21) has a bent part (22) on the side near the inserting mechanism (3).

3. A novel stamping die with a negative angle according to claim 2, characterized in that: The inserting mechanism (3) includes an upper inserting knife (31) installed at the lower end of the top seat (2), a wedge-shaped seat (32) installed at the upper end of the base (1), a pair of slides (33) installed at the upper end of the wedge-shaped seat (32), a lower inserting knife (34) slidably installed between the pair of slides (33), a connecting seat (35) installed on the left side of the lower inserting knife (34), and a stamping head (36) installed on the left side of the connecting seat (35).

4. A novel stamping die with a negative angle according to claim 3, characterized in that: The wedge-shaped seat (32) is also provided with a reset groove (39), and a nitrogen spring (38) is installed at the lower end of the lower insert (34). The telescopic end of the nitrogen spring (38) abuts against the inner wall of the left side of the reset groove (39).

5. A novel stamping die with a negative angle according to claim 4, characterized in that: A limiting seat (37) is also installed on the upper right side of the wedge-shaped seat (32).

6. A novel stamping die with a negative angle according to claim 5, characterized in that: The lower end of the upper insert (31) and the upper end of the lower insert (34) are provided with chamfers at corresponding positions.

7. A novel stamping die with a negative angle according to claim 6, characterized in that: A limiting mechanism (4) is also provided between the base (1) and the top seat (2). The limiting mechanism (4) includes multiple limiting posts (41) installed around the base (1). Each limiting post (41) has a limiting rod (42) installed at its upper end. Limiting posts (43) are installed around the lower end of the top seat (2). Limiting holes (44) are opened at the lower end of the limiting posts (43). The limiting rod (42) is inserted into the limiting hole (44).

8. A novel stamping die with a negative angle according to claim 7, characterized in that: The lower mold base (11) has multiple positioning grooves (14) distributed on its upper end, and the upper mold base (21) has multiple positioning posts (15) at the corresponding positions on its lower end. The positioning posts (15) are inserted into the positioning grooves (14).

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