A hemming device for producing a bright trim strip

By integrating a motor-driven helical gear transmission system and a multi-set bending roller structure, the problem of cumbersome manual adjustments in the production of bright trim strips has been solved, realizing the automation and efficient adaptation of bright trim strip production, and improving production efficiency and product quality.

CN224545304UActive Publication Date: 2026-07-24JINHU LINENG VEHICLE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHU LINENG VEHICLE IND CO LTD
Filing Date
2025-07-16
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing edge-folding devices for producing bright decorative strips require manual disassembly and replacement of bending components when dealing with bright decorative strips of different widths and thicknesses. The adjustment process is cumbersome and time-consuming, affecting production efficiency.

Method used

Design a bending device for producing bright decorative strips. Integrate a motor-driven helical gear transmission system inside the lifting housing. Through the multi-group cooperation structure of bending positioning roller and movable roller, combined with electric telescopic rod and adjustment mechanism, realize automated control of bending spacing and angle, and simplify component replacement process.

Benefits of technology

The production process of bright decorative strips has been mechanized, which has improved the versatility and adjustment efficiency of the equipment, reduced processing time, reduced friction damage, and ensured the appearance quality and angle consistency of the products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of edge folding device for bright decorative strip production, comprising: edge folding machine box, the edge folding machine box includes bottom case, the rear end of the top of bottom case is fixedly connected with support plate, the top of support plate is fixedly connected with top plate, bending stick, the bending stick is set in the front of edge folding machine box, lifting transmission mechanism, the lifting transmission mechanism is set in the inside of bottom case, adjusting mechanism, the adjusting mechanism includes lifting shell, the surface of lifting shell is slidably connected with the inside of support plate.The utility model is integrated in lifting shell by setting the combination structure of edge folding machine box, bending stick, lifting transmission mechanism and adjusting mechanism, realizes the mechanization control of bending interval adjustment, without manual disassembly replacement component, greatly simplifies the adaptation process of different specifications bright decorative strip, improves the versatility and adjustment efficiency of device, to facilitate user use.
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Description

Technical Field

[0001] This utility model relates to the field of bright decorative strip technology, specifically a folding device for producing bright decorative strips. Background Technology

[0002] Bright trim strips are an important component of automotive exterior decoration, mainly installed on the edges of windows, sides of the vehicle body, or bumpers, serving both decorative and functional purposes. Their design incorporates curved fitting techniques and injection molding technology, and through built-in energy-absorbing buffer strips, they can reduce damage to the vehicle body when encountering scratches from gravel or minor collisions.

[0003] The production process of bright trim strips requires a folding device. For example, a fixing device for producing bright trim strips for the left and right air vents of an automotive dashboard (publication (announcement) number: CN218016754U) disclosed in Chinese Patent includes a base. A first support frame and a second support frame are symmetrically distributed and fixedly installed on the top of the base. A C-shaped fixing plate for clamping and fixing the bright trim strip is installed on one side wall of each support frame. The top and bottom of the C-shaped fixing plate are respectively provided with a first threaded hole and a through groove, and a vertical clamping assembly is provided. This assembly includes a locking bolt that is threaded to the first threaded hole. A fastening plate is provided on the inner side of the C-shaped fixing plate.

[0004] This utility model belongs to the field of automotive manufacturing technology. When fixing bright trim strips during production, it provides a good fixing effect without damaging the surface of the trim strip, and it is not easily loosened, thus helping to improve production efficiency. However, this patented device has certain limitations: when dealing with bright trim strips of different widths and thicknesses, manual disassembly and replacement of the bending components are required, making the adjustment process cumbersome and time-consuming, severely impacting production efficiency. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a folding device for producing bright decorative strips, which has the advantage of being convenient for users and solves the problem that the folding device for producing bright decorative strips is inconvenient for users.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a folding device for producing bright decorative strips, comprising:

[0007] A folding frame, comprising a bottom frame, a support plate fixedly connected to the rear end of the top of the bottom frame, and a top plate fixedly connected to the top of the support plate;

[0008] A bending rod, wherein the bending rod is disposed on the front side of the bending machine housing;

[0009] A lifting transmission mechanism, wherein the lifting transmission mechanism is disposed inside the bottom housing;

[0010] An adjustment mechanism includes a lifting housing, the surface of which is slidably connected to the interior of a support plate. A motor is fixedly connected to the top of the lifting housing. The output end of the motor passes through the lifting housing and extends into the interior of the lifting housing, where a helical gear one is fixedly connected. A helical gear two is provided on the left side of the bottom of the helical gear one, and the helical gear two meshes with the helical gear one. A transmission shaft is fixedly connected inside the helical gear two. Transmission screws are fixedly connected to both sides of the surface of the transmission shaft. A moving plate is threadedly connected to the surface of the transmission screws, and a transmission block is fixedly connected to the front of the moving plate.

[0011] As a preferred embodiment of this utility model, the bending rod includes a bending positioning rod, the back of which is fixedly connected to the top and bottom of both sides of the front of the support plate via bearings. Movable plates are provided on both sides of the front of the lifting shell. The front of the transmission block penetrates the lifting shell and extends to the front of the lifting shell, where it is fixedly connected to the movable plates. Bending movable rods are fixedly connected to the top and bottom of the front of the movable plates via bearings.

[0012] As a preferred embodiment of this utility model, the lifting transmission mechanism includes an electric telescopic rod, which is disposed on both sides of the top of the bottom housing. The bottom of the electric telescopic rod passes through the bottom housing and extends into the interior of the bottom housing. The output end of the electric telescopic rod is fixedly connected to the bottom of the lifting shell. A lifting plate is fixedly connected to the bottom of the lifting shell. A connecting plate is fixedly connected to the bottom of the lifting plate, which passes through the lifting shell and extends into the interior of the bottom housing.

[0013] As a preferred embodiment of this utility model, both sides of the surface of the transmission shaft are fixedly connected to a stabilizing bearing, and the outer side of the outer ring of the stabilizing bearing is fixedly connected to the inner wall of the lifting housing.

[0014] In a preferred embodiment of this invention, sliders are fixedly connected to the top and bottom of the movable plate, and grooves are provided at the top and bottom of the inner wall of the lifting shell, with the grooves slidably connected to the sliders.

[0015] As a preferred embodiment of this utility model, guide grooves are provided on both sides of the inner wall of the support plate, and guide blocks are slidably connected inside the guide grooves. The inner side of the guide blocks is fixedly connected to the lifting shell.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model integrates a motor-driven helical gear transmission system into the lifting housing by setting up a combination structure of a bending machine box, bending roller, lifting transmission mechanism and adjustment mechanism. This realizes mechanized control of bending spacing adjustment, eliminating the need for manual disassembly and replacement of components. It greatly simplifies the adaptation process of bright decorative strips of different specifications, improves the versatility and adjustment efficiency of the device, and makes it more convenient for users.

[0018] 2. This utility model forms multiple sets of cooperative structures through bending positioning rods and bending movable rods. The bending movable rods are linked with the adjustment mechanism through the transmission block, which can realize multi-position bending operations simultaneously. This avoids the disadvantage of having to process a single bending component in multiple stages, reduces processing time, and the bearing-connected movable rod design reduces friction damage to the bright trim surface, ensuring the product's appearance quality.

[0019] 3. This utility model uses an electric telescopic rod to control the up and down movement of the lifting shell, and the connection stability is enhanced by the lifting plate and connecting plate. Compared with the traditional manual lifting adjustment, it significantly improves the control accuracy of the lifting height, and the electric drive method improves the degree of automation, reduces human operation error, and ensures the consistency of the folding angle. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present utility model;

[0021] Figure 2 This utility model Figure 1 A three-dimensional structural diagram of the lifting transmission mechanism;

[0022] Figure 3 This utility model Figure 1 Cross-sectional view of the central lifting shell;

[0023] Figure 4 This utility model Figure 1 A three-dimensional structural diagram of the adjustment mechanism.

[0024] In the diagram: 1. Folding machine housing; 101. Bottom housing; 102. Support plate; 103. Top plate; 2. Bending roller; 21. Bending positioning roller; 22. Moving plate; 23. Bending movable roller; 3. Lifting transmission mechanism; 31. Electric telescopic rod; 32. Lifting plate; 33. Connecting plate; 4. Adjustment mechanism; 41. Lifting shell; 42. Motor; 43. Helical gear one; 44. Helical gear two; 45. Transmission shaft; 46. Transmission screw; 47. Moving plate; 48. Transmission block; 5. Stabilizing bearing; 6. Sliding block; 7. Slide groove; 8. Guide groove; 9. Guide block. Detailed Implementation

[0025] 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.

[0026] like Figures 1 to 4As shown, the present invention provides a folding device for producing bright decorative strips, comprising:

[0027] The folding chassis 1 includes a bottom chassis 101, a support plate 102 is fixedly connected to the rear end of the top of the bottom chassis 101, and a top plate 103 is fixedly connected to the top of the support plate 102.

[0028] Bending rod 2 is set on the front of the bending machine box 1;

[0029] The lifting transmission mechanism 3 is located inside the bottom housing 101;

[0030] Adjustment mechanism 4 includes a lifting shell 41. The surface of the lifting shell 41 is slidably connected to the interior of the support plate 102. A motor 42 is fixedly connected to the top of the lifting shell 41. The output end of the motor 42 passes through the lifting shell 41 and extends to the interior of the lifting shell 41. A helical gear 43 is fixedly connected to the interior of the lifting shell 41. A helical gear 44 is provided on the left side of the bottom of the helical gear 43. The helical gear 44 meshes with the helical gear 43. A transmission shaft 45 is fixedly connected to the interior of the helical gear 44. Transmission screws 46 are fixedly connected to both sides of the surface of the transmission shaft 45. A moving plate 47 is threadedly connected to the surface of the transmission screws 46. A transmission block 48 is fixedly connected to the front of the moving plate 47.

[0031] refer to Figure 1 The bending rod 2 includes a bending positioning rod 21. The back of the bending positioning rod 21 is fixedly connected to the top and bottom of the front sides of the support plate 102 via bearings. Movable plates 22 are provided on both sides of the front of the lifting shell 41. The front of the transmission block 48 penetrates through the lifting shell 41 and extends to the front of the lifting shell 41 and is fixedly connected to the movable plate 22. The top and bottom of the front of the movable plate 22 are fixedly connected to the bending movable rod 23 via bearings.

[0032] As a technical optimization of this utility model, multiple sets of cooperative structures are formed by bending positioning rod 21 and bending movable rod 23. The bending movable rod 23 is linked with the adjustment mechanism 4 through transmission block 48, which can realize multi-position bending operation simultaneously, avoiding the disadvantage of needing to process a single bending component in multiple times, reducing processing time. At the same time, the design of the movable rod connected by bearing reduces friction damage with the bright trim surface, ensuring the appearance quality of the product.

[0033] refer to Figure 2The lifting transmission mechanism 3 includes an electric telescopic rod 31, which is set on both sides of the top of the bottom housing 101. The bottom of the electric telescopic rod 31 passes through the bottom housing 101 and extends into the interior of the bottom housing 101. The output end of the electric telescopic rod 31 is fixedly connected to the bottom of the lifting shell 41. A lifting plate 32 is fixedly connected to the bottom of the lifting shell 41. A connecting plate 33 is fixedly connected to the bottom of the lifting plate 32, which passes through the lifting shell 41 and extends into the interior of the bottom housing 101.

[0034] As a technical optimization of this utility model, the electric telescopic rod 31 can control the up and down movement of the lifting shell 41, and the lifting plate 32 and connecting plate 33 can strengthen the connection stability. Compared with the traditional manual lifting adjustment, the control accuracy of the lifting height is significantly improved, and the electric drive method improves the degree of automation, reduces human operation error, and ensures the consistency of the folding angle.

[0035] refer to Figure 3 Both sides of the drive shaft 45 are fixedly connected to a stabilizing bearing 5, and the outer side of the outer ring of the stabilizing bearing 5 is fixedly connected to the inner wall of the lifting housing 41.

[0036] As a technical optimization of this utility model, by stabilizing the bearing 5, the radial wobble of the transmission shaft 45 can be effectively limited, the stability of the transmission process can be enhanced, the transmission deviation caused by vibration during long-term high-frequency operation can be avoided, the accuracy of bending spacing adjustment can be guaranteed, and the service life of the device can be extended.

[0037] refer to Figure 3 The top and bottom of the movable plate 47 are fixedly connected to sliders 6, and the top and bottom of the inner wall of the lifting shell 41 are provided with sliding grooves 7, which are slidably connected to sliders 6.

[0038] As a technical optimization of this utility model, the slider 6 and the groove 7 can provide guiding constraints for the horizontal movement of the moving plate 47, avoiding jamming or offset during the adjustment process, making the adjustment of the bending distance smoother and more stable, and further improving the adjustment accuracy.

[0039] refer to Figure 3 The inner walls of the support plate 102 are provided with guide grooves 8 on both sides. Guide blocks 9 are slidably connected inside the guide grooves 8. The inner side of the guide blocks 9 is fixedly connected to the lifting shell 41.

[0040] As a technical optimization of this utility model, the guide groove 8 and the guide block 9 can form a sliding fit, providing bidirectional guidance for the vertical movement of the lifting shell 41, preventing tilting or shaking during the lifting process, ensuring the relative position accuracy of the bending movable rod 23 and the positioning rod 21, and improving the stability of the folding process.

[0041] The working principle and usage process of this utility model are as follows: In use, firstly, according to the specifications of the bright decorative strip to be processed, adjust the lateral distance between the bending movable roller 23 and the bending positioning roller 21 through the adjusting mechanism 4. Then, start the motor 42 at the top of the lifting housing 41. The output end of the motor 42 drives the first helical gear 43 to rotate. Since the first helical gear 43 meshes with the second helical gear 44, the power is transmitted to the transmission shaft 45. The transmission shaft 45 rotates stably under the constraint of the stable bearings 5 ​​on both sides, and the transmission screw 46 on its surface rotates accordingly, causing the moving plate 47, which is threaded onto the transmission screw 46, to move horizontally. The sliders 6 at the top and bottom of the moving plate 47 slide within the grooves 7 on the inner wall of the lifting housing 41, providing guidance for the moving plate 47 and preventing deviation. 47. The transmission block 48 on the front drives the moving plates 22 on both sides of the lifting shell 41 to move synchronously, thereby adjusting the distance between the bending movable roller 23 on the moving plate 22 and the bending positioning roller 21 fixed on the support plate 102 to match the width and thickness of the bright trim strip. After the distance is adjusted, the electric telescopic rods 31 on both sides of the bottom housing 101 are activated. Their output ends push the lifting shell 41 to slide along the inside of the support plate 102. The guide blocks 9 on both sides of the lifting shell 41 slide in the guide grooves 8 of the support plate 102 to ensure that the lifting process is vertical and stable. At the same time, the lifting plate 32 and the connecting plate 33 at the bottom of the lifting shell 41 enhance the overall connection strength to avoid shaking during lifting, so that the bending movable roller 23 and the bending positioning roller 21 fold the workpiece.

[0042] In summary, this folding device for producing bright trim strips, through the combination structure of the folding machine housing 1, bending roller 2, lifting transmission mechanism 3 and adjustment mechanism 4, integrates the helical gear transmission system driven by motor 42 into the lifting housing 41, realizing mechanized control of bending spacing adjustment. It eliminates the need for manual disassembly and replacement of components, greatly simplifies the adaptation process for bright trim strips of different specifications, improves the versatility and adjustment efficiency of the device, and thus facilitates user operation.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folding device for producing bright decorative strips, characterized in that, include: The folding machine casing (1) includes a bottom casing (101), a support plate (102) is fixedly connected to the rear end of the top of the bottom casing (101), and a top plate (103) is fixedly connected to the top of the support plate (102). Bending rod (2), the bending rod (2) is disposed on the front of the bending machine box (1); The lifting transmission mechanism (3) is located inside the bottom housing (101); Adjustment mechanism (4), the adjustment mechanism (4) includes lifting shell (41), the surface of the lifting shell (41) is slidably connected to the inside of support plate (102), the top of the lifting shell (41) is fixedly connected to motor (42), the output end of the motor (42) passes through the lifting shell (41) and extends to the inside of the lifting shell (41) and is fixedly connected to helical gear one (43), helical gear two (44) is provided on the left side of the bottom of helical gear one (43), helical gear two (44) meshes with helical gear one (43), the inside of helical gear two (44) is fixedly connected to transmission shaft (45), both sides of the surface of transmission shaft (45) are fixedly connected to transmission screw (46), the surface of transmission screw (46) is threadedly connected to moving plate (47), and the front of moving plate (47) is fixedly connected to transmission block (48).

2. The folding device for producing bright decorative strips according to claim 1, characterized in that: The bending rod (2) includes a bending positioning rod (21). The back of the bending positioning rod (21) is fixedly connected to the top and bottom of the front sides of the support plate (102) by bearings. Movable plates (22) are provided on both sides of the front of the lifting shell (41). The front of the transmission block (48) penetrates the lifting shell (41) and extends to the front of the lifting shell (41) and is fixedly connected to the movable plate (22). The top and bottom of the front of the movable plate (22) are fixedly connected to bending movable rods (23) by bearings.

3. The folding device for producing bright decorative strips according to claim 2, characterized in that: The lifting transmission mechanism (3) includes an electric telescopic rod (31), which is set on both sides of the top of the bottom housing (101). The bottom of the electric telescopic rod (31) passes through the bottom housing (101) and extends into the interior of the bottom housing (101). The output end of the electric telescopic rod (31) is fixedly connected to the bottom of the lifting shell (41). The bottom of the lifting shell (41) is fixedly connected to a lifting plate (32). The bottom of the lifting plate (32) passes through the lifting shell (41) and extends into the interior of the bottom housing (101), where a connecting plate (33) is fixedly connected.

4. The folding device for producing bright decorative strips according to claim 3, characterized in that: Both sides of the drive shaft (45) are fixedly connected to a stabilizing bearing (5), and the outer side of the outer ring of the stabilizing bearing (5) is fixedly connected to the inner wall of the lifting shell (41).

5. The folding device for producing bright decorative strips according to claim 4, characterized in that: The top and bottom of the movable plate (47) are fixedly connected to sliders (6), and the top and bottom of the inner wall of the lifting shell (41) are provided with grooves (7), which are slidably connected to the sliders (6).

6. The folding device for producing bright decorative strips according to claim 5, characterized in that: Guide grooves (8) are provided on both sides of the inner wall of the support plate (102). A guide block (9) is slidably connected inside the guide groove (8). The inner side of the guide block (9) is fixedly connected to the lifting shell (41).

Citation Information

Patent Citations

  • Fixing device for producing bright decorative strips at left and right air ports of automobile instrument panel

    CN218016754U