Improved movable shearing mouth cutting-off die structure
By improving the movable shear cutting die structure and using a cutting punch and insert knife in conjunction with the shear drive slider, the vertical cutting problem of fully enclosed core-pulling products is solved, achieving efficient and low-cost mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常熟祥鑫汽配有限公司
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-15
AI Technical Summary
In the existing technology, the fully enclosed core-pulling shape product cannot be vertically cut off after molding, resulting in low production efficiency and high cost of single-shot engineering molds, and it is not suitable for mass production.
An improved movable shear cutting die is designed, which uses a cutting punch and a cutting blade in conjunction with a shear-driven slider to achieve vertical cutting of the material at the connecting position through the embedded shear. Combined with a nitrogen spring and a reset mechanism, the die is ensured to be accurately aligned and efficiently reset.
It achieves efficient and low-cost vertical cutting of continuous material, is suitable for mass production, reduces product defects and mold wear, and improves production efficiency.
Smart Images
Figure CN224238028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, and in particular to an improved movable shear cutting die structure. Background Technology
[0002] In existing technologies, fully enclosed core-pulling products have connecting material positions on both sides horizontally located on the end face of the product after molding, with no support points underneath. If continuous die stamping is continued, it is impossible to vertically cut off the connecting material positions for ejection. Traditional mold-making methods can only use engineering mold-making, where material is cut first and then molded. This results in low efficiency, high machine space requirements, and high costs when mass-producing with a single engineering mold.
[0003] Therefore, existing technologies need to be improved and enhanced. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an improved movable shear cutting die structure with high efficiency and low cost.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An improved movable shear cutting die structure includes an upper die and a lower die.
[0007] A cutting punch is installed on the upper die, and two inserts are symmetrically arranged on both sides of the cutting punch;
[0008] The lower die is provided with a product blanking port that corresponds to and cooperates with the cutting punch. Two shear drive sliders that cooperate with the insert knife are symmetrically arranged on both sides of the product blanking port. An embedded shear is embedded on the opposite side of each shear drive slider.
[0009] As a further embodiment of this utility model, the upper mold includes an upper mold base, an upper pad, an upper clamping plate, a stop plate, and a stripper plate arranged sequentially from top to bottom. The upper mold base, the upper pad, and the upper clamping plate are fixed together, and the stop plate is fixed together with the stripper plate. A plurality of nitrogen springs are provided between the upper mold base and the stop plate.
[0010] As a further embodiment of this utility model, an inner guide post is provided at each of the four corners of the stripper plate, and the upper mold base, the upper pad plate, and the upper clamping plate are provided with inner guide post holes that cooperate with the inner guide posts.
[0011] As a further embodiment of this utility model, the lower mold includes a lower mold base and a lower support plate arranged sequentially from top to bottom, and a plurality of lower pads are provided between the lower mold base and the lower support plate.
[0012] As a further embodiment of this utility model, an outer guide post is provided at each of the four corners of the upper mold base, and an outer guide sleeve that cooperates with the outer guide post is provided on the lower mold base.
[0013] As a further embodiment of this utility model, a lower mold base is provided with a lower pad block, a forming block is provided on the lower pad block, the forming block has the product discharge port, and the shear drive slider is slidably provided on both sides of the forming block.
[0014] As a further embodiment of this utility model, a wear-resistant plate is provided between each of the shear drive sliders and the lower pad block.
[0015] As a further embodiment of this utility model, a reset mechanism is provided on both sides of the lower pad block and connected to the shear drive slider. The reset mechanism includes a height equalizing screw, a reset spring and a fixing block. The height equalizing screw passes through the reset spring and the fixing block and is connected to the corresponding shear drive slider.
[0016] As a further embodiment of this utility model, a blind groove is provided on the side of the fixing block away from the forming block, and the reset spring is provided between the bottom of the blind groove and the nut of the equal-height screw.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] Due to the above structural design, namely, setting a cutting punch and two inserts on the upper die, setting a product blanking port on the lower die, and setting two shear drive sliders on both sides of the product blanking port, each shear drive slider is equipped with an embedded shear. Through the cooperation of the cutting punch and the product blanking port, as well as the inserts and the shear drive, the embedded shear can complete the vertical cutting operation of the material position. It is not only highly efficient, but also low in cost, and can be used in mass production. Attached Figure Description
[0019] Appendix Figure 1 This is a schematic diagram of the structure in the mold-opening state of an embodiment of the present invention;
[0020] Appendix Figure 2 This is a structural diagram of the mold-closed state in an embodiment of the present invention.
[0021] The labels in the diagram are as follows:
[0022] 10 - Upper mold, 20 - Lower mold, 30 - Reset mechanism;
[0023] 11-Upper mold base, 12-Upper backing plate, 13-Upper clamping plate, 14-Stop plate, 15-Stripping plate, 16-Cutting punch, 17-Inserting knife, 18-Nitrogen spring, 19-Inner guide post;
[0024] 21-Lower mold base, 22-Lower support plate, 23-Lower pad, 24-Lower pad block, 25-Forming block, 26-Product blanking port, 27-Shear drive slider, 28-Embedded shear, 29-Wear-resistant plate;
[0025] 31-Equal height screw, 32-Return spring, 33-Fixing block;
[0026] 331-Blind slot. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0029] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0030] The features and performance of this utility model will be further described in detail below with reference to the embodiments. Example
[0031] like Figure 1 and Figure 2As shown, this application discloses an improved movable shear cutting die structure, including an upper die 10 and a lower die 20. The upper die 10 includes, from top to bottom, an upper die base 11, an upper pad 12, an upper clamping plate 13, a stop plate 14, and a stripper plate 15. The upper die base 11, the upper pad 12, and the upper clamping plate 13 are fixed together, and the stop plate 14 is fixed together with the stripper plate 15. A plurality of nitrogen springs 18 are provided between the upper die base 11 and the stop plate 14. An inner guide post 19 is provided at each of the four corners of the stripper plate 15. Inner guide post holes that mate with the inner guide posts 19 are provided on the upper die base 11, the upper pad 12, and the upper clamping plate 13. A cutting punch 16 is mounted on the upper die 10, and two inserters 17 are symmetrically arranged on both sides of the cutting punch 16.
[0032] The lower die 20 includes a lower die base 21 and a lower support plate 22 arranged sequentially from top to bottom. Several lower pads 23 are provided between the lower die base 21 and the lower support plate 22. The lower die 20 has a product discharge port 26 that corresponds to and cooperates with the cutting punch 16. Two shear drive sliders 27 that cooperate with the insert knife 17 are symmetrically arranged on both sides of the product discharge port 26. The insert knife 17 has a driving surface, and the shear drive sliders 27 have a sliding surface that cooperates with the driving surface. An embedded shear 28 is embedded on each opposite side of the shear drive sliders 27. Through the above structural design, during operation, the upper die 10 descends, and the stripper plate 15 presses the product into the product discharge port. When the product reaches a depth of one-third, the hollow, non-interfering position of the product is perfectly aligned with the embedded shear 28. The upper die 10 continues to descend, and the two inserts 17 begin to drive the two shear drive sliders 27 to move towards each other and smoothly enter the product. The upper die 10 continues to descend, and the embedded shear 28 is aligned with the cutting point of the product, forming a shear ready-to-cut state. The upper die 10 continues to descend, and the product is successfully cut off and discharged under the action of the cutting punch 16. The upper die 10 moves upward, and the two inserts 17 leave the two shear drive sliders 27 respectively. The shear drive sliders 27 reset. This stroke completes the cutting and unloading of the movable shear product, which is not only highly efficient but also low in cost and can be used in mass production.
[0033] Specifically, an outer guide post is provided at each of the four corners of the upper mold base 11, and an outer guide sleeve is provided on the lower mold base to cooperate with the outer guide post. With the cooperation of the outer guide post and the outer guide sleeve, it can be ensured that the upper mold and the lower mold can be accurately aligned when the mold is closed, reducing product defects caused by misalignment.
[0034] Specifically, a lower mold base 21 is provided with a lower pad block 24, a forming block 25 is provided on the lower pad block 24, the forming block 25 has the product discharge port 26, and the shear drive slider 27 is slidably provided on both sides of the forming block 25.
[0035] Specifically, a wear-resistant plate 29 is provided between each of the shear drive sliders 27 and the lower pad block 24. By using the wear-resistant plate, the damage to the lower pad block 24 and the shear drive module 27 can be significantly reduced, thereby extending the overall service life of the mold.
[0036] Specifically, a reset mechanism 30 is provided on both sides of the lower pad block 24 and connected to the shear drive slider 27. The reset mechanism 30 includes a height equalizing screw 31, a reset spring 32, and a fixing block 33. The height equalizing screw 31 passes through the reset spring 32 and the fixing block 33 and is connected to the corresponding shear drive slider 27. A blind groove 331 is provided on the side of the fixing block 33 away from the forming block 25. The reset spring 32 is provided between the bottom of the blind groove 331 and the nut of the height equalizing screw 31. Through the design of the reset mechanism 30, it is ensured that the mold can accurately return to the initial position after completing one working cycle, and prepare for the next operation.
[0037] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features reasonable results, high efficiency, and low cost.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.
Claims
1. An improved movable shear cutting die structure, comprising an upper die (10) and a lower die (20), characterized in that: A cutting punch (16) is installed on the upper die (10), and two inserts (17) are symmetrically arranged on both sides of the cutting punch (16). The lower die (20) is provided with a product discharge port (26) that corresponds to and cooperates with the cutting punch (16). Two shear drive sliders (27) that cooperate with the insert knife (17) are symmetrically arranged on both sides of the product discharge port (26). An embedded shear (28) is embedded on the opposite side of each shear drive slider (27).
2. The improved movable shear cutting die structure according to claim 1, characterized in that: The upper mold (10) includes an upper mold base (11), an upper pad (12), an upper clamping plate (13), a stop plate (14), and a stripper plate (15) arranged sequentially from top to bottom. The upper mold base (11), the upper pad (12), and the upper clamping plate (13) are fixed together. The stop plate (14) and the stripper plate (15) are fixed together. A plurality of nitrogen springs (18) are provided between the upper mold base (11) and the stop plate (14).
3. The improved movable shear cutting die structure according to claim 2, characterized in that: An inner guide post (19) is provided at each of the four corners of the stripper plate (15), and inner guide post holes that cooperate with the inner guide post (19) are provided on the upper mold base (11), the upper pad plate (12) and the upper clamping plate (13).
4. The improved movable shear cutting die structure according to claim 3, characterized in that: The lower mold (20) includes a lower mold base (21) and a lower support plate (22) arranged sequentially from top to bottom, and a plurality of lower pads (23) are provided between the lower mold base (21) and the lower support plate (22).
5. The improved movable shear cutting die structure according to claim 4, characterized in that: An outer guide post is provided at each of the four corners of the upper mold base (11), and an outer guide sleeve that cooperates with the outer guide post is provided on the lower mold base (21).
6. The improved movable shear cutting die structure according to claim 5, characterized in that: A lower die base (21) is provided with a lower pad block (24), and a forming block (25) is provided on the lower pad block (24). The forming block (25) has the product discharge port (26), and the shear drive slider (27) is slidably provided on both sides of the forming block (25).
7. The improved movable shear cutting die structure according to claim 6, characterized in that: A wear-resistant plate (29) is provided between each of the shear drive sliders (27) and the lower pad block (24).
8. The improved movable shear cutting die structure according to claim 7, characterized in that: Both sides of the lower pad (24) are provided with a reset mechanism (30) connected to the shear drive slider (27). The reset mechanism (30) includes a height equalizing screw (31), a reset spring (32) and a fixing block (33). The height equalizing screw (31) passes through the reset spring (32) and the fixing block (33) and is connected to the corresponding shear drive slider (27).
9. The improved movable shear cutting die structure according to claim 8, characterized in that: A blind groove (331) is provided on the side of the fixing block (33) away from the molding block (25), and the return spring (32) is provided between the bottom of the blind groove (331) and the nut of the equal height screw (31).