Steel belt pre-bending machine for vehicle door sealing strip

Abstract

The utility model discloses a steel belt pre-bending machine for a car door sealing strip, which relates to the field of pre-bending machines and comprises a machine body and a fixing plate arranged at the upper end of the machine body, a support frame is arranged at the upper end of the right side of the machine body, and a built-in steel belt is arranged at the upper end of the support frame. When the steel belt pre-bending machine for the vehicle door sealing strip is used, a driving motor drives a rotating rod to rotate, when the rotating rod rotates, a first bevel gear can drive a second bevel gear meshed with the first bevel gear to rotate, and when the second bevel gear rotates, the driving rod can be driven to rotate; and when the pre-bending wheels need to be replaced, a handle is rotated to drive a mounting disc to rotate, so that the mounting disc rotates to be separated from threaded mounting of a driving rod through a thread, a worker can conveniently replace and select the proper pre-bending wheel, and the use convenience of the device is improved. The use is convenient.

Description

A steel strip pre-bending machine for car door sealing strips Technical Field

[0001] This utility model relates to the field of pre-bending machine technology, specifically a steel strip pre-bending machine for car door sealing strips. Background Technology

[0002] The pre-bending machine for processing car door sealing strips is a production equipment specifically designed for the automotive industry. It is mainly used for the forming process of car door sealing strips. The equipment can process steel strips or other materials into the required shapes and curves for car door sealing strips to ensure sealing performance and compliance with automotive design requirements.

[0003] In existing technologies, subsequent operations are quite cumbersome and can easily affect the molding quality of the door sealing strip.

[0004] To overcome the aforementioned shortcomings, a Chinese patent (publication number CN201959999U) discloses a gradual center distance pre-bending machine. However, due to the different linear speeds of the forming rollers, cumulative wrinkling of the steel strip occurs, easily leading to quality problems, affecting the stability and efficiency of steel strip forming, and increasing costs. The gradual center distance pre-bending machine includes a frame and a reducer fixed to the frame. A transmission box is screwed onto the frame, and the reducer is connected to the transmission box. One side of the transmission box has several sets of corresponding upper and lower rollers, which rotate with the transmission box via upper and lower shafts, respectively. The center distance of each set of upper and lower rollers increases sequentially along the forming direction. The reducer is connected to the last set of upper and / or lower shafts along the forming direction. Its structure is simple and ingenious, with good stability, preventing cumulative wrinkling of the steel strip, significantly improving the quality of steel strip forming, and facilitating subsequent operations, resulting in significant benefits.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation. For example, when processing steel strips of different thicknesses for door sealing strips, the replacement and disassembly of the pre-bending wheel requires workers to tighten the bolts sequentially, which takes a long time, affecting their work efficiency and hindering ease of use. Summary of the Invention

[0006] The purpose of this utility model is to provide a steel strip pre-bending machine for car door sealing strips, so as to solve the problem mentioned in the background art that when processing steel strips of different thicknesses of car door sealing strips, the replacement and disassembly of the pre-bending wheel is time-consuming for workers to tighten and disassemble the bolts in sequence, which affects the work efficiency of workers and is not convenient to use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a steel strip pre-bending machine for car door sealing strips, comprising a machine body and a fixing plate disposed on the upper end of the machine body, and a support frame disposed on the upper right side of the machine body, and an internal steel strip disposed on the upper end of the support frame; a drive motor is installed on the upper left side of the machine body, and a convenient replacement mechanism is disposed at the output end of the drive motor, and the convenient replacement mechanism includes a rotating rod, and the left side of the rotating rod is disposed at the output end of the drive motor; a pressure plate is disposed at the rear end of the mounting disc, and a tight fitting mechanism is disposed between the pressure plate and the mounting disc.

[0008] Furthermore, the upper center of the support frame is arc-shaped, and the upper end of the support frame is in contact with the surface of the built-in steel strip.

[0009] Furthermore, the convenient replacement mechanism also includes a first bevel gear, which is fixedly mounted on the surface of the rotating rod, and the left and right sides of the rotating rod are rotatably mounted to the fixed plate.

[0010] Furthermore, a second bevel gear is meshed with the front end of the first bevel gear, and a drive rod is fixedly installed at the front end of the second bevel gear. The front end of the drive rod is rotatably installed with the fixed plate, and the two drive rods are meshed with each other through a linkage gear.

[0011] Furthermore, a limiting block is fixedly installed on the surface of the drive rod, and a pre-bending wheel is sleeved on the surface of the limiting block. An installation disc is threadedly installed on the front end surface of the drive rod, and the installation disc is located at the front end of the pre-bending wheel. A handle is fixedly installed on the front end of the installation disc, and the inner side of the pre-bending wheel is in contact with the surface of the built-in steel strip.

[0012] Furthermore, the tight-fitting mechanism includes a limiting rod, the middle end of which is installed through the upper and lower ends of the mounting disc, and the rear end of the limiting rod is fixedly installed on the surface of the pressure plate, and the rear end of the pressure plate corresponds to the front end of the pre-bending wheel.

[0013] Furthermore, a return spring is sleeved on the surface of the limiting rod, and the front and rear ends of the return spring are disposed between the mounting disc and the pressure plate. A damping rod is installed through the left and right ends of the mounting disc, and the output end of the damping rod is disposed on the surface of the pressure plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In use, the drive motor drives the rotating rod to rotate. When the rotating rod rotates, it drives the second bevel gear, which meshes with it, to rotate through the first bevel gear. When the second bevel gear rotates, it drives the drive rod to rotate. In this way, the upper and lower pre-bending wheels can pre-bend the built-in steel strip. When it is necessary to replace the pre-bending wheel, the handle is turned, which drives the mounting disc to rotate. The mounting disc rotates and disengages from the threaded drive rod, making it easy for the staff to replace and select the appropriate pre-bending wheel, improving the convenience of the device and making it easy to use.

[0016] Furthermore, when using the device, the built-in steel strip is placed on the support frame on the upper right side of the machine body, and the arc at the upper end of the support frame is used to fit it, thereby effectively supporting the built-in steel strip and preventing it from being damaged on the pre-bending machine, which would lead to a decrease in processing quality.

[0017] 2. When the mounting disc is installed by rotating the handle, the pressure plates at both ends of the mounting disc move to the rear end under the action of the limit rod and the return spring, thereby pressing the pre-bending wheel, improving the stability of the pre-bending wheel, and with the action of the damping rod, preventing the return spring from vibrating back and forth, improving the shock absorption effect of the device, preventing the pre-bending wheel from vibrating and shifting during operation, and ensuring the stability of the built-in steel strip during pre-bending. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 is a rear-view three-dimensional structural diagram of this utility model.

[0020] Figure 3 is a side view of the three-dimensional structure of the support frame of this utility model.

[0021] Figure 4 is a side sectional three-dimensional structural diagram of the drive rod of this utility model.

[0022] Figure 5 is an enlarged structural schematic diagram of point A in Figure 4 of this utility model.

[0023] Figure 6 is a schematic diagram of the three-dimensional structure of the limiting block of this utility model.

[0024] In the diagram: 1. Body; 2. Fixing plate; 3. Support frame; 4. Internal steel belt; 5. Drive motor; 6. Rotating rod; 7. First bevel gear; 8. Second bevel gear; 9. Drive rod; 10. Linkage gear; 11. Limiting block; 12. Pre-bending wheel; 13. Mounting disc; 14. Handle; 15. Limiting rod; 16. Pressure plate; 17. Return spring; 18. Damping rod. 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] Example 1: As shown in Figures 1-3, a steel strip pre-bending machine for car door sealing strips is disclosed to solve the problem of inconvenient steel strip support. The machine body 1 and a fixing plate 2 set on the upper end of the machine body 1 are disclosed. A support frame 3 is set on the upper right side of the machine body 1, and an internal steel strip 4 is set on the upper end of the support frame 3. The upper center of the support frame 3 is arc-shaped, and the upper end of the support frame 3 is in contact with the surface of the internal steel strip 4.

[0027] When using the device, place the built-in steel strip 4 on the support frame 3 at the upper right side of the machine body 1. The built-in steel strip 4 is effectively supported by the arc shape at the upper end of the support frame 3, which prevents the built-in steel strip 4 from being damaged on the pre-bending machine and thus causing a decrease in processing quality.

[0028] Example 2: As shown in Figures 1-4 and 6, this technical solution, based on Example 1, discloses the following to solve the problem of inconvenience in replacing the pre-bending wheel 12: A drive motor 5 is installed on the upper left side of the machine body 1, and a convenient replacement mechanism is provided at the output end of the drive motor 5. The convenient replacement mechanism includes a rotating rod 6, and the left side of the rotating rod 6 is located at the output end of the drive motor 5. The convenient replacement mechanism also includes a first bevel gear 7, which is fixedly installed on the surface of the rotating rod 6. The left and right sides of the rotating rod 6 are rotatably installed with the fixed plate 2. The front end of the first bevel gear 7... A second bevel gear 8 is meshed with the drive rod 9, which is fixedly mounted on the front end of the second bevel gear 8. The front end of the drive rod 9 is rotatably mounted with the fixed plate 2. The two drive rods 9 are meshed with a linkage gear 10. A limit block 11 is fixedly mounted on the surface of the drive rod 9, and a pre-bending wheel 12 is sleeved on the surface of the limit block 11. An installation disc 13 is threadedly mounted on the front end of the drive rod 9, and the installation disc 13 is located at the front end of the pre-bending wheel 12. A handle 14 is fixedly mounted on the front end of the installation disc 13, and the inner side of the pre-bending wheel 12 is in contact with the surface of the built-in steel strip 4.

[0029] In use, the drive motor 5 drives the rotating rod 6 to rotate. When the rotating rod 6 rotates, it drives the second bevel gear 8, which meshes with the first bevel gear 7, to rotate. When the second bevel gear 8 rotates, it drives the drive rod 9 to rotate. The two drive rods 9 rotate synchronously through the linkage gear 10. At the same time, when the drive rod 9 rotates, the pre-bending wheel 12 on the surface rotates through the limiting block 11 set on the surface. In this way, the two pre-bending wheels 12 can pre-bend the built-in steel strip 4. When the pre-bending wheel 12 needs to be replaced, the handle 14 is turned, which drives the mounting disc 13 to rotate. The mounting disc 13 rotates and disengages from the threaded drive rod 9, making it easy for the staff to replace and select the appropriate pre-bending wheel 12, improving the convenience of the device and making it easy to use.

[0030] Example 3: As shown in Figures 1, 2, 4, 5, and 6, this technical solution, based on Example 2, discloses the following to address the problem of easy wobbling and displacement of the pre-bending wheel 12: a pressure plate 16 is provided at the rear end of the mounting disc 13, and a tight-fitting mechanism is provided between the pressure plate 16 and the mounting disc 13. The tight-fitting mechanism includes a limiting rod 15, the middle end of which is installed through the upper and lower ends of the mounting disc 13, and the rear end of the limiting rod 15 is fixedly installed on the surface of the pressure plate 16. The rear end of the pressure plate 16 corresponds to the front end of the pre-bending wheel 12. A return spring 17 is sleeved on the surface of the limiting rod 15, and the front and rear ends of the return spring 17 are located between the mounting disc 13 and the pressure plate 16. Damping rods 18 are installed through the left and right ends of the mounting disc 13, and the output end of the damping rods 18 is located on the surface of the pressure plate 16.

[0031] When the mounting disc 13 is installed by rotating the handle 14, the pressure plates 16 at the upper and lower ends of the mounting disc 13 move to the rear end under the action of the limit rod 15 and the return spring 17, thereby pressing the pre-bending wheel 12, improving the stability of the pre-bending wheel 12, and in conjunction with the action of the damping rod 18, preventing the return spring 17 from vibrating back and forth, improving the shock absorption effect of the device, preventing the pre-bending wheel 12 from vibrating and shifting during operation, and ensuring the stability of the built-in steel belt 4 during pre-bending.

[0032] 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 steel strip pre-bending machine for car door sealing strips, comprising a mounting disc (13), a machine body (1), and a fixing plate (2) disposed on the upper end of the machine body (1), wherein a support frame (3) is disposed on the upper right side of the machine body (1), and an internal steel strip (4) is disposed on the upper end of the support frame (3); characterized in that: A drive motor (5) is installed on the upper left side of the body (1), and a convenient replacement mechanism is provided at the output end of the drive motor (5). The convenient replacement mechanism includes a rotating rod (6), and the left side of the rotating rod (6) is located at the output end of the drive motor (5). A pressure plate (16) is provided at the rear end of the mounting disc (13), and a tight fitting mechanism is provided between the pressure plate (16) and the mounting disc (13).

2. The steel strip pre-bending machine for car door sealing strips according to claim 1, characterized in that: The upper center of the support frame (3) is arc-shaped, and the upper end of the support frame (3) is in contact with the surface of the built-in steel strip (4).

3. The steel strip pre-bending machine for car door sealing strips according to claim 1, characterized in that: The convenient replacement mechanism also includes a first bevel gear (7), which is fixedly installed on the surface of the rotating rod (6), and the left and right sides of the rotating rod (6) are rotatably installed with the fixed plate (2).

4. A steel strip pre-bending machine for car door sealing strips according to claim 3, characterized in that: The front end of the first bevel gear (7) is meshed with the second bevel gear (8), and the front end of the second bevel gear (8) is fixedly mounted with the drive rod (9). The front end of the drive rod (9) is rotatably mounted with the fixed plate (2), and the two drive rods (9) are meshed with each other through a linkage gear (10).

5. A steel strip pre-bending machine for car door sealing strips according to claim 4, characterized in that: The drive rod (9) is fixedly mounted with a limiting block (11), and a pre-bending wheel (12) is sleeved on the surface of the limiting block (11). The front end surface of the drive rod (9) is threaded with an installation disc (13), and the installation disc (13) is located at the front end of the pre-bending wheel (12). The front end of the installation disc (13) is fixedly mounted with a handle (14), and the inner side of the pre-bending wheel (12) is attached to the surface of the built-in steel strip (4).

6. A steel strip pre-bending machine for car door sealing strips according to claim 1, characterized in that: The tight-fitting mechanism includes a limiting rod (15), and the middle end of the limiting rod (15) is installed through the upper and lower ends of the mounting disc (13). The rear end of the limiting rod (15) is fixedly installed on the surface of the pressure plate (16), and the rear end of the pressure plate (16) corresponds to the front end of the pre-bending wheel (12).

7. A steel strip pre-bending machine for car door sealing strips according to claim 6, characterized in that: The surface of the limiting rod (15) is fitted with a reset spring (17), and the front and rear ends of the reset spring (17) are located between the mounting disc (13) and the pressure plate (16). The left and right ends of the mounting disc (13) are fitted with damping rods (18), and the output end of the damping rods (18) is located on the surface of the pressure plate (16).

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