Punching device for automobile headrest production

By designing a punching device for automotive headrest production that integrates cutting and punching, the problems of leather parts being stretched and deformed and low efficiency were solved, achieving efficient punching operations for leather parts and improving the appearance quality.

CN223820670UActive Publication Date: 2026-01-23CHONGQING RENHE BONING AUTOMOTIVE SYSTEMS CO LTD
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Patent Information

Application Number
CN202423308502.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-23
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

In the current production of automotive headrests, the punching equipment for leather parts suffers from problems such as stretching and deformation of the leather parts, poor regularity, and low efficiency.

Method used

A punching device for automotive headrest production that integrates cutting and punching is designed. By clamping the headrest in a headrest fixture at one time, the X-shaped cutting and punching operations are achieved by utilizing the coordinated movement of the cutting plate and the punching plate.

Benefits of technology

It improved punching efficiency, reduced deformation of leather parts, and enhanced overall appearance quality and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a punching device for producing an automobile headrest, which comprises a rack, the rack is provided with a punching table, and a headrest clamp is mounted on the punching table; a mounting plate is fixedly mounted on the punching table upwards through four stand columns, a punching plate and a cutting plate are arranged between the punching table and the mounting plate, the punching plate is located between the cutting plate and the mounting plate, and a punching plate lifting structure used for driving the punching plate to ascend and descend and a cutting plate lifting structure used for driving the cutting plate to ascend and descend are mounted on the mounting plate; two punches are fixedly mounted downwards on the punching plate; two cutting heads are installed on the cutting plate through an opposite moving structure, a cutter is fixedly installed at the lower end of each cutting head and is in an X shape, a blade of the cutter faces downwards, a sliding groove allowing the cutting heads to slide is formed in the cutting plate, and the size of the sliding groove is larger than that of the punch. The punching device for automobile headrest production has the advantages that cutting and punching can be integrated, only one-time clamping is needed, and efficiency is high.
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Description

Technical Field

[0001] This utility model relates to the field of automotive headrest manufacturing technology, and in particular to a punching device for automotive headrest manufacturing. Background Technology

[0002] A car headrest, installed above the car seat, provides head support for the driver and passengers, allowing them to maintain a comfortable seating posture. The headrest consists of a plastic component and a leather component pressed onto the outside of the plastic component. The headrest requires a support rod for connection to the seat. During the molding process, mounting holes for the support rod are pre-drilled in the plastic component; however, the leather component, pressed entirely onto the outside of the plastic component, blocks these holes. To facilitate the installation of the support rod, holes need to be punched in the leather component directly opposite the mounting holes.

[0003] Currently, there are two types of punching devices used to punch holes in the leather parts of car headrests:

[0004] 1. Direct punching causes leather parts to be easily stretched and deformed at the mounting hole positions, resulting in poor regularity and affecting the overall appearance quality;

[0005] 2. Drilling holes first and then punching holes requires two workstations, and manual switching between the two workstations is necessary, which is inefficient and costly. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a punching device for automobile headrest production that can integrate cutting and punching, requires only one clamping, and is highly efficient.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A punching apparatus for manufacturing automotive headrests includes a frame with a punching table.

[0009] A headrest clamp is installed on the punching platform;

[0010] The punching platform is fixedly mounted with an installation plate by four columns. A punching plate and a cutting plate are provided between the punching platform and the installation plate. The punching plate is located between the cutting plate and the installation plate. The installation plate is equipped with a punching plate lifting structure for driving the punching plate to rise and fall, and a cutting plate lifting structure for driving the cutting plate to rise and fall.

[0011] The punch plate has two punches fixedly installed downwards;

[0012] The cutting plate is equipped with two cutting heads via an opposing moving structure. A cutting blade is fixedly installed at the lower end of each cutting head. The cutting blade is X-shaped with the blade facing downwards. The cutting plate has a sliding groove that allows the cutting heads to slide. The size of the sliding groove is larger than the size of the punch.

[0013] In this way, the headrest is clamped and positioned by the headrest clamp. Then, the cutting plate lifting structure moves the cutting plate downward, and the cutting blade cuts the leather parts at the two mounting holes of the headrest, making X-shaped cuts. After that, the cutting plate moving structure moves the cutting plate upward, so that the cutting blade is above the headrest. The opposing moving structure moves the two cutting heads away from each other. The punching plate lifting structure moves the punching plate downward. The punch passes through the slide and punches the cut leather, completing the entire punching operation. After the punch is reset, the cutting head is reset.

[0014] Both the punch plate and the cutting plate are provided with guide holes that slide with the column.

[0015] The headrest clamp includes a contouring seat fixedly mounted on a punching platform. Two cylinder seats are fixedly mounted on the punching platform and are symmetrically arranged on both sides of the contouring seat. A rotary pressing cylinder is fixedly mounted on the cylinder seat, and a contouring pressure plate is fixedly mounted on the cylinder rod of the rotary pressing cylinder.

[0016] The punching plate lifting structure includes two punching cylinders fixedly installed on the mounting plate, with the cylinder rods of the punching cylinders passing through the mounting plate and fixedly connected to the punching plate; the cutting plate lifting structure includes cutting cylinders fixedly installed on both sides of the mounting plate, with the cylinder rods of the cutting cylinders passing through the mounting plate and fixedly connected to the cutting plate, and clearance notches are provided on both sides of the punching plate opposite to the cylinder rods of the punching cylinders.

[0017] The opposing moving structure includes two supports fixedly mounted on the cutting plate, a guide rod fixedly mounted between the two supports, and a bidirectional screw. The bidirectional screw is parallel to the guide rod and connected to the supports via bearings. One end of the bidirectional screw passes through the support and is fixedly connected to the output shaft of the geared motor. The geared motor is fixedly mounted on the cutting plate. The threads on the bidirectional screw rotate in opposite directions from the middle to both ends. A slide block is fixedly mounted on the upper end of the cutting head. The slide block has a sliding hole that slides with the guide rod. A nut block is fixedly mounted on the slide block. The two slide blocks are respectively threaded to both ends of the bidirectional screw via the nut blocks.

[0018] In summary, this punching device for automotive headrest production has the advantages of integrating cutting and punching, requiring only one clamping operation, and high efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the punching device for producing automotive headrests according to the present invention.

[0020] Figure 2 for Figure 1 A diagram showing another location.

[0021] Figure 3 for Figure 1 A schematic diagram showing the state of the headrest being held in place by the furniture.

[0022] Figure 4 for Figure 3 A schematic diagram of the hole-cutting process.

[0023] Figure 5 This is a schematic diagram showing the completed hole cutting process.

[0024] Figure 6 This is a schematic diagram of the punching process.

[0025] Figure 7 This is a schematic diagram of a reciprocating moving structure. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0027] like Figure 1-7 As shown, a punching device for producing automotive headrests includes a frame, the frame having a punching table 1, and a headrest clamp mounted on the punching table;

[0028] The punching platform is fixedly mounted with an installation plate 3 by four columns 2. A punching plate 4 and a cutting plate 5 are provided between the punching platform and the installation plate. The punching plate is located between the cutting plate and the installation plate. The installation plate is equipped with a punching plate lifting structure for driving the punching plate to rise and a cutting plate lifting structure for driving the cutting plate to rise and fall.

[0029] The punch plate is fixedly mounted with two punches 6 facing downwards;

[0030] The cutting plate is equipped with two cutting heads 8 via an opposing moving structure 7. A cutting blade 9 is fixedly mounted at the lower end of each cutting head. The cutting blade is X-shaped with its cutting edge facing downwards. The cutting plate has a groove that allows the cutting heads to slide; the size of the groove is larger than the size of the punch. This facilitates the punch's passage, and the larger punch length reduces interference with the cutting plate, enabling the punching operation.

[0031] In this way, the headrest 10 is clamped and positioned by the headrest clamp. Then, the cutting plate is moved downward by the cutting plate lifting structure. The cutting blade is used to cut the leather parts at the two mounting holes of the headrest, making X-shaped cuts. Then, the cutting plate moving structure moves the cutting plate upward so that the cutting blade is above the headrest. The opposing moving structure moves the two cutting heads away from each other. The punching plate lifting structure moves the punching plate downward. The punch passes through the slide and punches the cut leather, completing the entire punching operation. After the punch is reset, the cutting head is reset.

[0032] Hole cutting and punching can be achieved in a single clamping process, improving efficiency and precision.

[0033] In practice, both the punch plate and the cutting plate are provided with guide holes that slide with the column, thus improving stability.

[0034] In practice, the headrest clamp includes a contouring seat fixedly mounted on a punching platform. Two cylinder seats are fixedly mounted on the punching platform and symmetrically arranged on both sides of the contouring seat. A rotary pressing cylinder 11 is fixedly mounted on each cylinder seat, and a contouring pressure plate 12 is fixedly mounted on the cylinder rod of the rotary pressing cylinder. The headrest is fastened onto the contouring seat, and the rotary pressing cylinder drives the pressure plate to press the headrest onto the contouring seat.

[0035] In implementation, the punching plate lifting structure includes two punching cylinders 13 fixedly mounted on the mounting plate, with the cylinder rods of the punching cylinders passing through the mounting plate and fixedly connected to the punching plate; the cutting plate lifting structure includes cutting cylinders 14 fixedly mounted on both sides of the mounting plate, with the cylinder rods of the cutting cylinders passing through the mounting plate and fixedly connected to the cutting plate, and clearance notches are provided on both sides of the punching plate opposite to the cylinder rods of the punching cylinders. The punching cylinders drive the punching plate to move, and the cutting cylinders drive the cutting plate to move.

[0036] In implementation, the opposing moving structure includes two supports 15 fixedly mounted on the cutting plate, a guide rod 16 fixedly mounted between the two supports, and a bidirectional screw 17. The bidirectional screw is parallel to the guide rod and connected to the supports via bearings. One end of the bidirectional screw passes through the support and is fixedly connected to the output shaft of a reduction motor 18, which is fixedly mounted on the cutting plate. The threads on the bidirectional screw rotate in opposite directions from the middle to both ends. A slide block 19 is fixedly mounted on the upper end of the cutting head. The slide block has a sliding hole that slides with the guide rod, and a nut block is fixedly mounted on the slide block. The two slide blocks are threadedly connected to both ends of the bidirectional screw via the nut blocks. The reduction motor drives the bidirectional screw to rotate, and under the guidance of the guide rod, the two slide blocks move closer or further apart, adjusting the position of the two cutting heads.

[0037] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A punching apparatus for producing automotive headrests, comprising a frame, the frame having a punching table, characterized in that, A headrest clamp is installed on the punching platform; The punching platform is fixedly mounted with an installation plate by four columns. A punching plate and a cutting plate are provided between the punching platform and the installation plate. The punching plate is located between the cutting plate and the installation plate. The installation plate is equipped with a punching plate lifting structure for driving the punching plate to rise and fall, and a cutting plate lifting structure for driving the cutting plate to rise and fall. The punch plate has two punches fixedly installed downwards; The cutting plate is equipped with two cutting heads via an opposing moving structure. A cutting blade is fixedly installed at the lower end of each cutting head. The cutting blade is X-shaped with the blade facing downwards. The cutting plate has a sliding groove that allows the cutting heads to slide. The size of the sliding groove is larger than the size of the punch.

2. The punching device for automobile headrest production according to claim 1, characterized in that, Both the punch plate and the cutting plate are provided with guide holes that slide with the column.

3. The punching device for automobile headrest production according to claim 2, characterized in that, The headrest clamp includes a contouring seat fixedly mounted on a punching platform. Two cylinder seats are fixedly mounted on the punching platform and are symmetrically arranged on both sides of the contouring seat. A rotary pressing cylinder is fixedly mounted on the cylinder seat, and a contouring pressure plate is fixedly mounted on the cylinder rod of the rotary pressing cylinder.

4. The punching device for automobile headrest production according to claim 1, characterized in that, The punching plate lifting structure includes two punching cylinders fixedly installed on the mounting plate, the cylinder rods of the punching cylinders passing through the mounting plate and fixedly connected to the punching plate; the cutting plate lifting structure includes cutting cylinders fixedly installed on both sides of the mounting plate, the cylinder rods of the cutting cylinders passing through the mounting plate and fixedly connected to the cutting plate, and the two sides of the punching plate are provided with clearance notches opposite to the cylinder rods of the punching cylinders.

5. The punching device for automobile headrest production according to claim 1, characterized in that, The opposing moving structure includes two supports fixedly mounted on the cutting plate, a guide rod fixedly mounted between the two supports, and a bidirectional screw. The bidirectional screw is parallel to the guide rod and connected to the supports via bearings. One end of the bidirectional screw passes through the support and is fixedly connected to the output shaft of the geared motor. The geared motor is fixedly mounted on the cutting plate. The threads on the bidirectional screw rotate in opposite directions from the middle to both ends. A slide block is fixedly mounted on the upper end of the cutting head. The slide block has a sliding hole that slides with the guide rod. A nut block is fixedly mounted on the slide block. The two slide blocks are respectively threaded to both ends of the bidirectional screw via the nut blocks.