Bending device for automotive trim panel

The automotive interior panel bending device, which uses mold splicing and locking, solves the problem of traditional devices requiring complete mold replacement. It allows for flexible adjustment of mold length to meet the bending requirements of different interior panels, simplifying the operation process.

CN224026177UActive Publication Date: 2026-03-24HEBEI FENGXING FUTURE AUTOMOBILE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Traditional automotive interior panel bending devices require a complete mold replacement to accommodate bending requirements of different lengths, which is inconvenient to operate.

Method used

By splicing and locking multiple upper and lower dies, and using locking plates and bolts, the dies can be flexibly combined. The number of dies can be adjusted according to the bending length, avoiding the need to replace the entire die.

Benefits of technology

It enables flexible adjustment of the mold length to adapt to the bending requirements of different interior panels while maintaining the same degree of bending, thus simplifying the operation process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224026177U_ABST
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Abstract

The utility model relates to the technical field of inner decorative plate bending, and discloses an automobile inner decorative plate bending device which comprises a bottom plate and an upper plate, a supporting plate is transversely fixed to the middle of the surface of the bottom plate, electric push rods are vertically installed on the two sides of the surface of the upper plate, and lifting plates are transversely fixed to the tail ends of the bottoms of the electric push rods. Upper dies and lower dies which are the same in number are attached to the bottom surface of the lifting plate and the upper surface of the supporting plate, and an upper locking plate and a lower locking plate are attached to the bottom surface of the lifting plate on the two sides of the upper dies and the surface of the supporting plate on the two sides of the lower dies respectively. According to the technical scheme, the bent upper part mold and the bent lower part mold are formed by splicing and locking the multiple upper molds and the multiple lower molds, and when the trim panels with the same bending degree and different bending lengths need to be bent, the trim panels can be matched with different bending lengths only by changing the number of the upper molds and the number of the lower molds; and the operation is simplified without replacing all dies.
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Description

Technical Field

[0001] This utility model relates to the field of interior panel bending technology, specifically to a bending device for automotive interior panels. Background Technology

[0002] Automotive interior refers to the automotive products used in the modification of a car's interior, involving all aspects of the car's interior. It mainly includes the following interior systems: dashboard system, sub-dashboard system, door panel system, headliner system, seat system, pillar panel system, trunk interior parts system, etc. Most of these interior systems are made of automotive interior panels, among which aluminum alloy decorative panels usually need to be bent during processing.

[0003] Traditional methods for bending aluminum alloy decorative panels involve using a bending machine with upper and lower dies. Different interior panels require different degrees of bending, and many panels only differ in the bending length. This necessitates changing the entire die for each panel of varying length, making the process inconvenient. Therefore, we propose a bending device for automotive interior panels. Utility Model Content

[0004] The purpose of this utility model is to provide a bending device for automotive interior panels. The device is formed by splicing and locking the upper and lower part of the bending molds together with multiple upper molds and multiple lower molds. When it is necessary to bend interior panels with the same degree of bending but different bending lengths, it can adapt to different bending lengths simply by changing the number of upper and lower molds. This simplifies the operation without having to replace all the molds and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending device for automotive interior panels, comprising a base plate and an upper plate, wherein the upper plate is supported and positioned directly above the base plate, and the upper plate is parallel to the upper surface of the base plate; a support plate is horizontally fixed at the middle position of the surface of the base plate, and electric push rods are vertically installed on both sides of the surface of the upper plate, with a lifting plate horizontally fixed at the bottom end of the electric push rods; slots are provided on the bottom of the lifting plate and the surface of the support plate; the same number of upper molds and upper molds are attached to the bottom surface of the lifting plate and the upper surface of the support plate. The lower mold, the top of the upper mold, and the bottom of the lower mold are all connected to first insert blocks, which are respectively inserted into the slots of the lifting plate and the support plate. The bottom surfaces of the lifting plates on both sides of the upper mold and the surfaces of the support plates on both sides of the lower mold are respectively in contact with the upper locking plate and the lower locking plate. The top of the upper locking plate and the bottom of the lower locking plate are all connected to second insert blocks, which are respectively inserted into the slots of the lifting plate and the support plate. The surfaces of the upper locking plate and the lower locking plate are all screwed with locking bolts. The locking bolts pass through the upper locking plate and the lower locking plate and abut against the inner surface of the slots of the lifting plate and the support plate.

[0006] By adopting the above technical solution, according to the bending degree requirements of the interior panel, appropriate lower and upper molds are selected, and an appropriate number of lower and upper molds are selected according to the bending length. They are fixed on the upper surface of the support plate and the lower surface of the lifting plate, and locked by the lower locking plate and the upper locking plate, and then the bending process of the interior panel is carried out.

[0007] Optionally, both the upper and lower locking plates are provided with screw holes on their surfaces, and the locking bolt is screwed through the screw holes and passes through the upper and lower locking plates.

[0008] Optionally, the lifting plate and the support plate are of the same length, and the slot sides inside the lifting plate and the support plate are both open to the outside.

[0009] By adopting the above technical solution, the first inserts of both the upper and lower molds can be inserted from the side into the slots of the lifting plate and the support plate.

[0010] Optionally, the upper plate is supported and fixed with pillars at all four bottom corners, and the upper plate is supported above the bottom plate by the pillars.

[0011] Optionally, the bottom surface of the upper mold is provided with a raised structure, and the surface of the lower mold is provided with a groove adapted to the raised structure.

[0012] By adopting the above technical solution, the protruding structures and grooves that cooperate with each other can be bent to form the interior panel.

[0013] Optionally, the lifting plate is located directly above the support plate, and the lifting plate and the support plate are parallel to each other.

[0014] By adopting the above technical solution, the lifting plate can bring the upper mold down to a position that is directly above the lower mold.

[0015] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0016] 1. The technical solution of this application is formed by splicing and locking the upper and lower part of the bending mold through multiple upper molds and multiple lower molds. When it is necessary to bend interior panels with the same degree of bending but different bending lengths, it is possible to adapt to different bending lengths simply by changing the number of upper and lower molds, without having to replace all the molds, thus simplifying the operation.

[0017] 2. The technical solution of this application locks all upper or lower molds by using upper or lower locking plates at both ends. No matter how many upper or lower molds there are, they can be easily locked by just two upper locking plates or two lower locking plates. Attached Figure Description

[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the automotive interior panel bending device of this utility model;

[0020] Figure 2 This is a schematic diagram of the side lower mold of the automotive interior panel bending device of this utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the upper and lower molds of the automotive interior panel bending device of this utility model.

[0022] Figure 4 This is a schematic diagram of the upper and lower locking plate fixing structure of the automotive interior panel bending device of this utility model.

[0023] In the diagram: 1. Base plate; 2. Top plate; 21. Support column; 22. Electric actuator; 3. Support plate; 31. Lower mold; 4. Lifting plate; 41. Upper mold; 5. Slot; 6. Lower locking plate; 7. Upper locking plate; 8. First insert block; 9. Second insert block; 10. Locking bolt. Detailed Implementation

[0024] Please see Figure 1-4 This utility model provides a technical solution: a bending device for automotive interior panels, including a base plate 1 and an upper plate 2. The upper plate 2 is placed horizontally above the base plate 1. Each of the four bottom corners of the upper plate 2 is vertically fixed with a support column 21. The bottom of the support column 21 is fixed to the surface of the base plate 1. The support columns 21 are of the same height, so that the upper plate 2 is supported and placed above the base plate 1 in parallel.

[0025] A support plate 3 is horizontally fixed in the middle of the surface of the base plate 1. Electric actuators 22 are vertically installed on both sides of the surface of the upper plate 2. The protruding end of the electric actuator 22 extends through to the bottom of the upper plate 2, and a lifting plate 4 is horizontally fixed at the bottom end of the electric actuator 22. The lifting plate 4 and the support plate 3 have the same length. The lifting plate 4 is located directly above the support plate 3 and is parallel to each other. The electric actuator 22 can drive the lifting plate 4 to rise or fall. Slots 5 are opened at the bottom of the lifting plate 4 and on the surface of the support plate 3. The sides of the slots 5 in the lifting plate 4 and the support plate 3 are all connected to the outside.

[0026] An upper mold 41 and a lower mold 31 are respectively attached to the bottom surface of the lifting plate 4 and the upper surface of the support plate 3. The number of upper molds 41 and lower molds 31 is the same. A first insert 8 is integrally connected above the upper mold 41 and below the lower mold 31. The first inserts 8 of the upper mold 41 and lower mold 31 are respectively inserted into the slots 5 of the lifting plate 4 and the support plate 3, with the upper molds 41 and lower molds 31 closely abutting against each other, forming an integral upper mold 41 and lower mold 31 structure. An upper locking plate 7 and a lower locking plate 6 are respectively attached to the bottom surface of the lifting plate 4 on both sides of the upper mold 41 and the surface of the support plate 3 on both sides of the lower mold 31. The upper locking plate 7... The bottom of both the upper and lower locking plates 6 are connected to a second insert 9. The second inserts 9 of the upper locking plate 7 and the lower locking plate 6 are respectively inserted into the slots 5 of the lifting plate 4 and the support plate 3. The surfaces of the upper locking plate 7 and the lower locking plate 6 are provided with screw holes. Locking bolts 10 are screwed onto the surfaces of the upper locking plate 7 and the lower locking plate 6 through the screw holes. The locking bolts 10 pass through the upper locking plate 7 and the lower locking plate 6 and abut against the inner surface of the slots 5 of the lifting plate 4 and the support plate 3, thereby locking the upper locking plate 7 and the lower locking plate 6. The upper locking plate 7 abuts against the side surface of the upper mold 41, and the lower locking plate 6 abuts against the side surface of the lower mold 31, thereby locking the upper mold 41 and the lower mold 31.

[0027] The bottom surface of the upper mold 41 is provided with a raised structure, and the surface of the lower mold 31 is provided with a groove that matches the raised structure. When the lifting plate 4 drives the upper mold 41 to lower its height, its raised structure, in conjunction with the groove of the lower mold 31, can bend the interior panel.

[0028] In use, the control end of the electric push rod 22 is connected to the control device. Based on the bending degree of the interior trim panel to be bent, a matching upper mold 41 and lower mold 31 are selected. The upper mold 41 is inserted into the slot 5 of the lifting plate 4 through the first insert 8 at its bottom, and the upper mold 41 is pressed tightly against the bottom surface of the lifting plate 4. The number of upper molds 41 inserted is selected according to the bending length of the interior trim panel, ensuring that the total length of the upper molds 41 joined together is at least greater than the bending length of the interior trim panel. Then, locking plates are placed on the bottom surfaces of the lifting plate 4 on both sides of the upper molds 41. 7. Insert the second insert 9 at its bottom into the slot 5 of the lifting plate 4, and screw the locking bolt 10 onto the surface of the upper locking plate 7, so that the end of the locking bolt 10 passes through the inside of the slot 5 of the lifting plate 4 and abuts against it, thereby locking the upper locking plate 7 and making the upper locking plate 7 abut against both sides of the upper mold 41 to lock it. Then select the same number of lower molds 31, insert the lower molds 31 into the slot 5 of the support plate 3 through the first insert 8 at its bottom, and make the lower molds 31 fit tightly against the upper surface of the support plate 3. Then, on both sides of the lower molds 31... The bottom surface of the support plate 3 contacts the lower locking plate 6, causing the second insert 9 at its bottom to be inserted into the slot 5 of the support plate 3. A locking bolt 10 is then screwed onto the surface of the lower locking plate 6, with the end of the locking bolt 10 penetrating into the slot 5 of the support plate 3 and pressing against it, thus locking the lower locking plate 6. The lower locking plate 6 then presses against both sides of the lower mold 31 for locking. During bending, the bending position of the interior trim panel is positioned on the surface of the lower mold 31. Then, the electric push rod 22 lowers the lifting plate 4, simultaneously lowering the upper mold 41. The raised part at the bottom of the upper mold 41 cooperates with the recessed part of the lower mold 31 to bend the interior panel. When it is necessary to bend other interior panels with the same bending degree but different bending lengths, the locking bolt 10 can be unscrewed to remove only one side of the upper locking plate 7 and lower locking plate 6, increase or decrease the number of upper molds 41 and lower molds 31, and lock them again through the upper locking plate 7 and lower locking plate 6, so that it can quickly adapt to interior panels with different bending lengths. When it is necessary to change the bending degree, all the upper molds 41 and lower molds 31 can be replaced at the same time.

Claims

1. A bending device for automotive interior trim panels, comprising a base plate (1) and an upper plate (2), characterized in that: The upper plate (2) is supported and placed directly above the bottom plate (1), and the upper plate (2) is parallel to the upper surface of the bottom plate (1); A support plate (3) is horizontally fixed in the middle of the surface of the base plate (1), and electric push rods (22) are vertically installed on both sides of the surface of the upper plate (2). A lifting plate (4) is horizontally fixed at the bottom end of the electric push rod (22), and slots (5) are opened on the bottom of the lifting plate (4) and the surface of the support plate (3). The bottom surface of the lifting plate (4) and the upper surface of the support plate (3) are covered with the same number of upper molds (41) and lower molds (31). The top of the upper mold (41) and the bottom of the lower mold (31) are connected to the first insert (8) and are respectively inserted into the slots (5) of the lifting plate (4) and the support plate (3). The bottom surfaces of the lifting plate (4) on both sides of the upper mold (41) and the surfaces of the support plate (3) on both sides of the lower mold (31) are respectively covered with locking plates. The upper locking plate (7) and the lower locking plate (6) are connected to a second insert (9) at the top of the upper locking plate (7) and the bottom of the lower locking plate (6), and are respectively inserted into the slots (5) of the lifting plate (4) and the support plate (3). The surfaces of the upper locking plate (7) and the lower locking plate (6) are screwed with locking bolts (10). The locking bolts (10) pass through the upper locking plate (7) and the lower locking plate (6) and then abut against the inner surface of the slots (5) of the lifting plate (4) and the support plate (3).

2. The bending device for automotive interior panels according to claim 1, characterized in that: The surfaces of the upper locking plate (7) and the lower locking plate (6) are provided with screw holes, and the locking bolt (10) is screwed through the screw holes and passes through the upper locking plate (7) and the lower locking plate (6).

3. The bending device for automotive interior panels according to claim 1, characterized in that: The lifting plate (4) and the support plate (3) are of the same length, and the sides of the slots (5) inside the lifting plate (4) and the support plate (3) are connected to the outside.

4. The bending device for automotive interior panels according to claim 1, characterized in that: The bottom four corners of the upper plate (2) are all supported and fixed with pillars (21), and the upper plate (2) is supported above the bottom plate (1) by the pillars (21).

5. The bending device for automotive interior panels according to claim 1, characterized in that: The bottom surface of the upper mold (41) is provided with a raised structure, and the surface of the lower mold (31) is provided with a groove adapted to the raised structure.

6. The bending device for automotive interior panels according to claim 1, characterized in that: The lifting plate (4) is located directly above the support plate (3), and the lifting plate (4) and the support plate (3) are parallel to each other.