Progressive stamping die for automobile seat headrest guide pipe

Abstract

The utility model discloses an automobile seat headrest guide pipe stamping progressive die, and belongs to the field of automobile part machining.The automobile seat headrest guide pipe stamping progressive die comprises a bottom die and a top die, and limiting edge strips are arranged on the two sides, corresponding to the plate feeding direction, of the top of the bottom die; the bottom die is sequentially provided with a punching groove, a bending die base and an edge rolling die base from the feeding end to the discharging end. An edge cutting punch, a bending pressure head and an edge rolling pressure head which are used for single-edge cutting are fixedly mounted at the positions, corresponding to the punching groove, the bending die holder and the edge rolling die holder, of the bottom of the top die, and a cut-off punch fixedly connected with the top die is arranged between the bending pressure head and the edge rolling pressure head. According to the automobile seat headrest guide pipe stamping progressive die, through the design of the progressive die, a plurality of working procedures such as cutting, bending, cutting-off and edge rolling are integrated in one die, continuous machining of a headrest guide pipe is achieved, the machining time and the transfer time between the working procedures are greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts processing, and in particular to a continuous die for stamping a car seat headrest conduit. Background Art

[0002] Auto parts processing refers to the process of converting raw materials into auto parts with specific shapes, sizes and performance through a series of mechanical operations.

[0003] Car seat headrests typically achieve a detachable connection via guide rods and mounting guides on the backrest. Manufacturing these guides typically involves cutting and rolling, with the process requiring multiple processing stations. This cumbersome process, coupled with the time wasted transferring between stations, results in low overall production efficiency.

[0004] Therefore, the present application provides a continuous die for stamping a car seat headrest conduit to solve the above problems. Utility Model Content

[0005] The present application provides a continuous die for stamping a car seat headrest duct, which aims to solve the problem of low overall production efficiency caused by the complicated production process of the existing car seat headrest ducts mentioned in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a continuous die for stamping a car seat headrest duct, comprising a bottom die and a top die.

[0007] The top of the bottom mold has limiting edge strips on both sides corresponding to the feeding direction of the plate, and the bottom mold is provided with a punching groove, a bending die seat and a rolling die seat in sequence from the feeding end to the discharging end.

[0008] A trimming punch, a bending press and a rolling press for single-sided cutting are fixedly installed at the bottom of the top die at positions corresponding to the punching groove, the bending die base and the rolling die base, wherein a truncation punch fixedly connected to the top die is arranged between the bending press and the rolling press, and the trimming punch is a pair of rectangular punches symmetrically arranged with a gap in the middle.

[0009] A preload plate is located between the bottom and top molds. Guide rods are slidably connected to the preload plate at the four corners of the top mold's bottom, corresponding to the preload plate. Limiting nuts are threaded onto the bottom ends of the guide rods, which contact the bottom surface of the preload plate. Springs are mounted on the outsides of the guide rods, connecting the top mold and the preload plate at their respective ends. This continuous mold design integrates multiple processes—cutting, bending, truncating, and curling—into a single mold, enabling continuous processing of the headrest duct. This significantly reduces processing time and the time it takes to transfer between processes, improving production efficiency.

[0010] Preferably, the pre-tightening plate has a clearance hole for making way for the trimming punch, the bending punch, the truncation punch, the curling punch and the limiting edge strip.

[0011] Preferably, the discharge end of the bottom mold has a discharge slope for guiding the unloading of the finished product.

[0012] Preferably, the top center of the top mold has a connecting seat for connecting to the movable end of the external punching device.

[0013] Preferably, the punching groove extends to the bottom of the bottom mold.

[0014] Preferably, the width between the limiting edge strips is equal to the width of the plate material, and the feeding distance of the plate is equal to the length of the finished product conduit plus a distance of a blank spacing.

[0015] Preferably, positioning holes for inserting the limiting nuts are provided at the four corners of the top of the bottom mold corresponding to the positions of the limiting nuts.

[0016] The continuous die for stamping the car seat headrest duct integrates multiple processes such as cutting, bending, truncation and curling into one die through continuous die design, realizing continuous processing of the headrest duct, greatly shortening the processing time and the transfer time between processes, and improving production efficiency.

[0017] The continuous die for stamping the automobile seat headrest conduit has a continuous die design that reduces the transfer and waiting time between processes, reduces the consumption of manpower and equipment, and thus reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a continuous die for stamping the headrest duct of a car seat. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of a continuous die for stamping the headrest duct of a car seat. Figure 2 ;

[0020] Figure 3 The figure is a schematic diagram of the blank structure of a continuous die for stamping a car seat headrest duct.

[0021] In the picture:

[0022] 1. Bottom die; 11. Limiting edge strip; 12. Punching slot; 13. Bending die base; 14. Rolling die base; 15. Positioning hole; 16. Cutting slope;

[0023] 2. Top die; 21. Connecting seat; 22. Trimming punch; 23. Bending punch; 24. Cutting punch;

[0024] 25. Rolling head;

[0025] 3. Preload plate; 31. Guide rod; 32. Spring; 33. Limit nut. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] This embodiment provides a continuous die for stamping the headrest conduit of an automobile seat, such as Figure 1-Figure 3 As shown, the automobile seat headrest conduit stamping continuous die includes a bottom die 1 and a top die 2.

[0028] The top of the bottom die 1 has limiting edge strips 11 on both sides corresponding to the sheet feeding direction. The bottom die 1 is provided with a punching groove 12, a bending die seat 13 and a rolling die seat 14 in sequence from the feeding end to the discharging end.

[0029] A trimming punch 22, a bending press 23 and a rolling press 25 for single-sided cutting are fixedly installed at the positions corresponding to the punching groove 12, the bending die base 13 and the rolling die base 14 at the bottom of the top die 2. Among them, a truncation punch 24 fixedly connected to the top die 2 is arranged between the bending press 23 and the rolling press 25. The trimming punches 22 are a pair of rectangular punches that are symmetrically arranged with a gap in the middle.

[0030] There is a pre-tightening plate 3 between the bottom mold 1 and the top mold 2. There are guide rods 31 slidingly connected to the pre-tightening plate 3 at the four corners of the bottom of the top mold 2 corresponding to the pre-tightening plate 3. The bottom ends of the guide rods 31 are screwed with limit nuts 33 in contact with the bottom surface of the pre-tightening plate 3. The outside of the guide rods 31 is covered with springs 32 with both ends respectively connected to the top mold 2 and the pre-tightening plate 3.

[0031] During use, the sheet to be processed is fed into the die in the set direction, and is guided and limited by the limiting edge strip 11 on the top of the bottom die 1 to ensure that the sheet maintains the correct position and direction of travel during the processing. When the sheet moves to the notch 12 position, the top die 2 drops, and the trimming punch 22 performs a single-side cut on the sheet to form the required notch. As it continues to be fed, it is cut again to form a complete rectangular blank. The sheet continues to move to the bending die base 13 position. At this time, the top die 2 drops again, and the bending pressure head 23 bends the sheet to form the preliminary bending part required for curling. Synchronously, the cutting punch 24 cuts it off. As the sheet material is fed, the bent portion is pushed onto the rolling die seat 14. When pressed down again, the rolling press head 25 presses down to cooperate with the rolling die seat 14 to extrude the bent blank into a full circle. During this period, when the top die 2 descends, the pre-tightening plate 3 first contacts the bottom die 1, and as the stamping action occurs, the pre-tightening plate 3 presses the sheet material to form a positioning effect, ensure accuracy, and guarantee the quality of the finished product. With each stamping action, cutting, bending, cutting and rolling actions are performed simultaneously, which greatly improves production efficiency, and the single-sided cutting makes the blank spacing determined by the thickness of the trimming punch 22, making the blank more compact, greatly reducing the generation of scrap, and saving costs.

[0032] Among them, the pre-tightening plate 3 has a clearance hole for the trimming punch 22, the bending punch 23, the truncation punch 24, the curling punch 25 and the limiting edge strip 11; the clearance micro-hole design on the pre-tightening plate 3 is to ensure that the trimming punch 22, the bending punch 23, the truncation punch 24, and the curling punch 25 can smoothly penetrate the pre-tightening plate 3 during the stamping process, directly act on the plate on the bottom mold 1, and avoid interference with the pre-tightening plate 3.

[0033] Furthermore, the discharge end of the bottom mold 1 has a discharge slope 16 for guiding the unloading of the finished product; the discharge slope 16 is designed to guide the finished headrest duct to be smoothly discharged from the mold after the stamping is completed, so as to avoid the finished product being stuck in the mold or damaged.

[0034] In addition, the top center of the top mold 2 has a connecting seat 21 for connecting to the movable end of the external stamping device; the connecting seat 21 is designed to connect to the movable end of the external stamping device to realize the up and down movement of the mold, thereby completing the stamping operation, and facilitating maintenance and replacement.

[0035] It should be noted that the punching groove 12 extends to the bottom of the bottom mold 1; the bottom mold 1 that is completely penetrated is convenient for blanking.

[0036] Specifically, the width between the limiting edge strips 11 is equal to the width of the plate raw material, and the feeding distance of the plate is equal to the length of the finished conduit plus a distance of the blank spacing; when the width between the limiting edge strips 11 is equal to the width of the plate raw material, the plate can be effectively confined in the mold, and the blank spacing is to leave enough space for the next finished conduit during continuous processing.

[0037] In addition, positioning holes 15 for inserting the limiting nuts 33 are opened at the four corners of the top of the bottom mold 1 corresponding to the positions of the limiting nuts 33; when the stamping action is convenient, the limiting nuts 33 find the positioning holes 15 and are inserted to ensure the accuracy of the stamping position, improve precision, and increase the yield rate.

[0038] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A continuous die for stamping a car seat headrest conduit, comprising a bottom die (1) and a top die (2), characterized in that: The top of the bottom die (1) is provided with limiting edge strips (11) on both sides corresponding to the sheet material feeding direction, and the bottom die (1) is provided with a punching groove (12), a bending die seat (13) and a rolling die seat (14) in sequence from the feeding end to the discharging end; A trimming punch (22), a bending press head (23) and a rolling press head (25) for single-side cutting are fixedly installed at the bottom of the top die (2) at positions corresponding to the punching groove (12), the bending die seat (13) and the rolling die seat (14), wherein a truncation punch (24) fixedly connected to the top die (2) is provided between the bending press head (23) and the rolling press head (25), and the trimming punch (22) is a pair of rectangular punches symmetrically arranged with a gap in the middle; A pre-tightening plate (3) is provided between the bottom mold (1) and the top mold (2); guide rods (31) are provided at the bottom of the top mold (2) at positions corresponding to the four corners of the pre-tightening plate (3) and are slidably connected to the pre-tightening plate (3); the bottom ends of the guide rods (31) are screwed with limit nuts (33) in contact with the bottom surface of the pre-tightening plate (3); and the outside of the guide rods (31) is provided with springs (32) whose two ends are respectively connected to the top mold (2) and the pre-tightening plate (3).

2. The automobile seat headrest conduit stamping continuous die according to claim 1, characterized in that: The pre-tightening plate (3) has a clearance hole for the trimming punch (22), the bending press (23), the cutting punch (24), the curling press (25) and the limiting edge strip (11).

3. The automobile seat headrest conduit stamping continuous die according to claim 2, characterized in that: The discharge end of the bottom mold (1) is provided with a discharge slope (16) for guiding the discharge of finished products.

4. The automobile seat headrest conduit stamping continuous die according to claim 3, characterized in that: The top center of the top die (2) is provided with a connection seat (21) for connecting with the movable end of an external punching device.

5. The automobile seat headrest conduit stamping continuous die according to claim 4, characterized in that: The punching groove (12) extends to the bottom of the bottom mold (1).

6. The automobile seat headrest conduit stamping continuous die according to claim 5, characterized in that: The width between the limiting edge strips (11) is equal to the width of the plate material, and the feeding distance of the plate is equal to the length of the finished product conduit plus a distance of a blank spacing.

7. The automobile seat headrest conduit stamping continuous die according to claim 6, characterized in that: Positioning holes (15) for inserting the limiting nuts (33) are provided at the four corners of the top of the bottom mold (1) corresponding to the positions of the limiting nuts (33).

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