Seat back support cutting mold
By introducing a positioning structure consisting of a lower positioning rod, an upper positioning rod, and an L-shaped clamping plate into the seat rear bracket mold, combined with the cooperation of the cylinder-driven extrusion block and shearing block, the stability and positioning inaccuracy problems of the front straight edge shearing of the seat rear bracket are solved, thereby improving processing efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU YICHENG TECH CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-24
AI Technical Summary
Existing seat rear support molds suffer from poor shearing stability, inaccurate positioning, and inconvenient waste collection when cutting straight edges before shearing, which affects processing efficiency and product quality.
A straight edge cutting mold for a seat rear support was designed. It uses a lower positioning rod, an upper positioning rod, and an L-shaped clamping plate for precise positioning. Combined with the cooperation of the cylinder pushing the extrusion block and the shearing block, the crossbar and the strip opening are used for limiting to ensure shearing stability and flatness. Waste material is conveniently collected through the pad block.
It achieves precise shearing of the front straight edge, improves processing accuracy and stability, ensures the flatness of the sheared surface, simplifies the waste material removal process, and improves processing efficiency and product quality.
Smart Images

Figure CN224542845U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seat processing molds, and in particular to a mold for cutting the front straight edge of a seat rear support. Background Technology
[0002] In the manufacturing process of seats, the processing of the rear seat support is a crucial step. It often requires shearing the front straight edge to meet the needs of subsequent assembly. Existing molds have problems such as poor shearing stability, inaccurate positioning, and inconvenience in collecting and removing waste materials after shearing when shearing the front straight edge of the rear seat support, which affect processing efficiency and product quality.
[0003] Therefore, it is necessary to invent a straight-edge cutting mold for the rear seat support to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a straight edge cutting mold for the rear seat support to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold for cutting the front straight edge of a seat rear support, comprising an upper fixed plate, a lower fixed plate, and a seat rear support. The bottom of the seat rear support is provided with a front straight edge. The bottom of the upper fixed plate is provided with a lower pressure plate. The top of the lower fixed plate is fixedly connected with four support columns. The top of each of the four support columns is provided with a spring. The other end of the spring abuts against the bottom of the lower pressure plate. The top of the support column is provided with a groove, and a limit rod is slidably provided in the groove. The surface of the lower pressure plate is provided with a limit hole corresponding to the limit rod. The top end of the limit rod is fixedly connected to the bottom of the upper fixed plate. A push plate is fixedly connected to the bottom of the lower pressure plate, a shearing block is fixedly connected to the bottom of the push plate, two support blocks are fixedly connected to the top of the lower fixed plate, and shearing seats corresponding to the shearing blocks are fixedly connected to the top of the two support blocks. A feeding port corresponding to the shearing seat is opened on the top of the support block.
[0006] Preferably, each of the two discharge ports is provided with a set of pads on its sidewall, with two pads in each set, and the top of each set of pads is fixedly connected to the bottom of the lower fixing plate.
[0007] Preferably, the top of the support block is fixedly connected to an L-shaped clamping plate and a first fixing plate, and a crossbar is fixedly connected between the L-shaped clamping plate and the first fixing plate. The side wall of the shearing block has a strip-shaped opening corresponding to the crossbar.
[0008] Preferably, a lower positioning rod and an upper positioning rod are provided on the rear side of the seat rear support. The lower positioning rod is fixedly connected to the top of the support block, and the upper positioning rod is fixedly connected to the side wall of the first fixing plate.
[0009] Preferably, a second fixing plate is fixedly connected to the side wall of the support block, and a cylinder is fixedly connected to the side wall of the second fixing plate. The output end of the cylinder passes through the second fixing plate and is fixedly connected to a pressing block.
[0010] Preferably, the four support columns are arranged in a trapezoidal shape, and the two cylinders are located on the left and right sides of the two front support columns.
[0011] The technical effects and advantages of this utility model are as follows: By setting the lower positioning rod, the upper positioning rod, and the L-shaped clamping plate, the rear support of the seat can be accurately positioned, ensuring the accurate cutting position of the front straight edge and improving the processing accuracy of the product. The cylinder pushes the extrusion block, which cooperates with the L-shaped clamping plate to press the rear support of the seat tightly. At the same time, the cooperation of the crossbar and the strip-shaped opening limits the cutting block, improving the stability of the cutting process and ensuring the flatness of the cutting surface. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A front view structural diagram; Figure 3 This utility model Figure 1 A schematic diagram of the rear structure; Figure 4 This utility model Figure 3 A schematic diagram of the structure viewed from below; Figure 5 This is a schematic diagram of the structure of the support block, shear block, and shear seat of this utility model; Figure 6 This utility model Figure 1 A magnified structural diagram of part A; Figure 7 This utility model Figure 2 A schematic diagram of the enlarged structure of part B; Figure 8 This utility model Figure 3 A schematic diagram of the enlarged structure of part C; Figure 9 This is a schematic diagram of the structure of the rear seat support of this utility model.
[0013] In the diagram: 1. Upper fixing plate; 2. Lower fixing plate; 3. Rear seat support; 31. Front straight edge; 4. Lower pressure plate; 5. Support column; 6. Spring; 7. Limiting rod; 8. Push plate; 9. Shearing block; 10. Support block; 11. Shearing seat; 12. Discharge port; 13. Pad block; 14. L-shaped clamping plate; 15. First fixing plate; 16. Crossbar; 17. Strip-shaped opening; 18. Lower positioning rod; 19. Upper positioning rod; 20. Second fixing plate; 21. Cylinder; 22. Extrusion block. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0015] This utility model provides, for example Figure 1-8 The above-displayed seat rear support cutting front straight edge mold includes an upper fixed plate 1, a lower fixed plate 2 and a seat rear support 3. The bottom of the seat rear support 3 is provided with a front straight edge 31. The bottom of the upper fixed plate 1 is provided with a lower pressure plate 4. The top of the lower fixed plate 2 is fixedly connected with four support columns 5. The top of each of the four support columns 5 is provided with a spring 6. The other end of the spring 6 abuts against the bottom of the lower pressure plate 4. The top of the support column 5 is provided with a groove, and a limit rod 7 is slidably provided in the groove. The surface of the lower pressure plate 4 is provided with a limit hole corresponding to the limit rod 7. The top of the limit rod 7 is fixedly connected to the bottom of the upper fixed plate 1. A push plate 8 is fixedly connected to the bottom of the lower pressure plate 4, and a shearing block 9 is fixedly connected to the bottom of the push plate 8. Two support blocks 10 are fixedly connected to the top of the lower fixed plate 2, and shearing seats 11 corresponding to shearing blocks 9 are fixedly connected to the top of the two support blocks 10. A discharge port 12 corresponding to shearing seats 11 is opened on the top of the support blocks 10. By placing the front straight edge 31 of the seat rear bracket 3 on the shearing seat 11, and using the lower pressure plate 4 to push the push plate 8, the push plate 8 pushes the shearing block 9. With the cooperation of the shearing block 9 and the shearing seat 11, the front straight edge 31 of the seat rear bracket 3 is sheared.
[0016] Each of the two discharge ports 12 has a set of pads 13 on its side wall. There are two pads 13 in each set. The top of each set of pads 13 is fixedly connected to the bottom of the lower fixing plate 2, which makes it convenient to pick up the cut front straight edge 31 that falls from the discharge port 12.
[0017] The top of the support block 10 is fixedly connected to an L-shaped clamping plate 14 and a first fixing plate 15. A crossbar 16 is fixedly connected between the L-shaped clamping plate 14 and the first fixing plate 15. The side wall of the shearing block 9 is provided with a strip-shaped opening 17 corresponding to the crossbar 16. The cooperation between the crossbar 16 and the strip-shaped opening 17 can limit the position of the shearing block 9 and improve the stability of the shearing block 9 in cutting off the front straight edge 31 on the rear seat support 3.
[0018] The rear side of the seat rear bracket 3 is provided with a lower positioning rod 18 and an upper positioning rod 19. The lower positioning rod 18 is fixedly connected to the top of the support block 10, and the upper positioning rod 19 is fixedly connected to the side wall of the first fixing plate 15. The seat rear bracket 3 is inserted into the mold from the rear side from above at an angle. The seat rear bracket 3 is positioned by the lower positioning rod 18, the upper positioning rod 19 and the L-shaped clamping plate 14. The front straight edge 31 of the seat rear bracket 3 is located at the bottom of the L-shaped clamping plate 14 and is on the shearing seat 11.
[0019] A second fixing plate 20 is fixedly connected to the side wall of the support block 10. A cylinder 21 is fixedly connected to the side wall of the second fixing plate 20. The output end of the cylinder 21 passes through the second fixing plate 20 and is fixedly connected to the pressing block 22. The seat rear bracket 3 is located between the pressing block 22 and the L-shaped clamping plate 14. By using the cylinder 21 to push the pressing block 22, the pressing block 22 and the L-shaped clamping plate 14 cooperate to press the seat rear bracket 3 against each other.
[0020] The four support columns 5 are arranged in a trapezoidal shape, and the two cylinders 21 are located on the left and right sides of the two support columns 5 at the front.
[0021] The working principle of this utility model is as follows: The seat rear support 3 is inserted into the mold from the rear side and above at an angle. The seat rear support 3 is positioned by the lower positioning rod 18, the upper positioning rod 19, and the L-shaped clamping plate 14, so that the front straight edge 31 of the seat rear support 3 is located at the bottom of the L-shaped clamping plate 14 and on the shearing seat 11. Then, the cylinder 21 is activated, and the cylinder 21 pushes the extrusion block 22. The cooperation between the extrusion block 22 and the L-shaped clamping plate 14 presses the seat rear support 3 tightly. Then, the upper fixing plate 1 drives the lower pressure plate 4 to move towards... The lower platen 4 compresses the spring 6, which in turn pushes the push plate 8 downward. The push plate 8 drives the shearing block 9 downward. Under the limiting action of the crossbar 16 and the strip-shaped opening 17, the shearing block 9 cooperates with the shearing seat 11 to shear the front straight edge 31. After shearing, the front straight edge 31 falls from the discharge port 12. The operator can easily pick up the material through the pad block 13. After shearing, the upper fixing plate 1 moves upward. Under the elastic force of the spring 6, the lower platen 4 automatically resets to prepare for the next shearing operation.
[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mold for cutting the front straight edge of a seat rear support, comprising an upper fixing plate, a lower fixing plate, and a seat rear support, wherein the bottom of the seat rear support is provided with a front straight edge, characterized in that: The bottom of the upper fixed plate is provided with a lower pressure plate, and the top of the lower fixed plate is fixedly connected with four support columns. The top of each of the four support columns is provided with a spring, and the other end of the spring abuts against the bottom of the lower pressure plate. The top of the support column is provided with a groove, and a limit rod is slidably provided in the groove. The surface of the lower pressure plate is provided with a limit hole corresponding to the limit rod, and the top end of the limit rod is fixedly connected to the bottom of the upper fixed plate. A push plate is fixedly connected to the bottom of the lower pressure plate, a shearing block is fixedly connected to the bottom of the push plate, two support blocks are fixedly connected to the top of the lower fixed plate, and shearing seats corresponding to the shearing blocks are fixedly connected to the top of the two support blocks. A feeding port corresponding to the shearing seat is opened on the top of the support block.
2. The seat rear support cutting straight edge mold according to claim 1, characterized in that: Each of the two discharge ports has a set of pads on its sidewalls, with two pads in each set. The tops of both sets of pads are fixedly connected to the bottom of the lower fixing plate.
3. The seat rear support cutting straight edge mold according to claim 2, characterized in that: The top of the support block is fixedly connected to an L-shaped clamping plate and a first fixing plate, and a crossbar is fixedly connected between the L-shaped clamping plate and the first fixing plate. The side wall of the shearing block has a strip-shaped opening corresponding to the crossbar.
4. The seat rear support front straight edge cutting mold according to claim 3, characterized in that: The rear side of the seat rear support is provided with a lower positioning rod and an upper positioning rod. The lower positioning rod is fixedly connected to the top of the support block, and the upper positioning rod is fixedly connected to the side wall of the first fixing plate.
5. A straight-edge cutting mold for a seat rear support according to claim 4, characterized in that: A second fixing plate is fixedly connected to the side wall of the support block, and a cylinder is fixedly connected to the side wall of the second fixing plate. The output end of the cylinder passes through the second fixing plate and is fixedly connected to a pressing block.
6. The seat rear support cutting straight edge mold according to claim 5, characterized in that: The four support columns are arranged in a trapezoidal shape, and the two cylinders are located on the left and right sides of the two front support columns.