Automotive trim plastic welding machine

By combining structures such as limit blocks, sliders, and clamping plates, the problem of wrinkles and bubbles caused by uneven clamping during the welding of automotive interior plastics is solved, achieving a high-quality welding effect, and improving efficiency through rapid cooling.

CN223466728UActive Publication Date: 2025-10-24SUZHOU DAZHA JINGKO AUTO PARTS CO LTD
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Patent Information

Application Number
CN202422281270.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-19
Publication Date
2025-10-24
Estimated Expiration
2034-09-19

AI Technical Summary

Technical Problem

Existing technology cannot effectively clamp and flatten thin automotive interior plastics, resulting in wrinkles and bubbles during welding, which reduces product quality.

Method used

The system employs a combination of limiting blocks, sliders, clamps, springs, and rubber pads to ensure that the plastic is stretched flat before welding, while a support block, funnel, water pump, and delivery pipe are used for rapid cooling.

Benefits of technology

It achieves a smooth plastic surface during the welding process, avoids wrinkles and bubbles, improves welding quality, and shortens the production cycle through rapid cooling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding machines, and discloses an automobile interior plastic welding machine which comprises a machine body, the front end of the machine body is rotatably connected with a machine door, the front end of the machine door is provided with an observation window, the bottom end of the inner wall of the top end of the machine body is fixedly connected with a supporting assembly, and the inner wall of the top end of the supporting assembly is fixedly connected with a driving assembly. A first bevel gear is fixedly connected to the rear end of the exterior of the driving assembly, a rotating shaft is rotationally connected to the inner wall of the top end of the supporting assembly, a second bevel gear is fixedly connected to the middle end of the exterior of the rotating shaft, the first bevel gear is in meshed connection with the second bevel gear, and a top disc is rotationally connected to the top end of the exterior of the rotating shaft. According to the utility model, the automobile interior plastic needing to be welded is pulled to be flat, the problem that fine bubbles appear on a finished product due to surface wrinkles during welding is prevented, and the purpose of improving the welding quality is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a fusion splicer technical field especially relates to a car interior plastic fusion splicer. BACKGROUND

[0002] Fusion splicer technology is a key process for car interior manufacturing, which melts two or more plastic parts at high temperature to bond them together. This technology can achieve high-strength connection between parts, providing excellent sealing and appearance consistency. Fusion splicer technology usually uses hot plates, ultrasonic waves or friction heat principles to precisely control heating and pressure application on car interior parts, achieving fast and reliable fusion. This technology plays an important role in car interior manufacturing, ensuring product quality and production efficiency.

[0003] After searching, Chinese patent publication No. CN216182864U discloses an ultrasonic plastic fusion splicer, which includes a base and a vertical column arranged on the base; the bottom of the column is provided with a height adjusting mechanism, the height adjusting mechanism includes a vertical driving gear and a driven gear meshing with the driving gear, the height adjusting mechanism drives the sliding seat one to move up and down along the sliding rail one fixed on the column, the top of the sliding seat one is vertically provided with a gas cylinder, the gas cylinder piston rod is telescopic to drive the sliding seat two to move up and down along the sliding rail two on the side of the sliding seat one, the sliding seat two is fixed with an amplitude rod, the bottom of the amplitude rod is threadedly connected with an ultrasonic hot melting head, the ultrasonic hot melting head corresponds to the position of the base. The utility model realizes automatic and accurate fusion between plastic products, reduces the labor intensity of workers and improves the processing quality and efficiency of plastic products.

[0004] The above patent specification mentions the beneficial effects of "through the cooperation of sliding rail one, sliding seat one, sliding rail two, sliding seat two, height adjusting mechanism, amplitude rod and ultrasonic hot melting head, realizing automatic and accurate fusion between plastic products, reducing the labor intensity of workers and improving the processing quality and efficiency of plastic products", the above patent realizes automatic and accurate fusion between plastic products, reduces the labor intensity of workers, but in the specific use process, it cannot clamp and fix the relatively thin car interior plastic while ensuring its flatness, which leads to wrinkles on the surface during fusion, resulting in bubbles on the surface of the subsequent fused products, reducing the quality of the products. Therefore, a car interior plastic fusion splicer is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a car interior plastic welding machine, aims at improving the prior art cannot the thin car interior plastic is fixed with clamping and guarantees the evenness, which leads to the uneven surface and the wrinkle during welding, makes the product surface appear bubble after subsequent welding, reduces the quality of product problem.

[0006] In order to realize the above object, the utility model adopts the following technical scheme:

[0007] A car interior plastic welding machine, including machine body, the front end of machine door is rotatably connected with the machine body, the front end of machine door is provided with an observation window, the bottom end of the top end inner wall of machine body is fixedly connected with support assembly, the top end inner wall of support assembly is fixedly connected with drive assembly, the external rear end of drive assembly is fixedly connected with bevel gear no.

[0008] As a further description of the above technical scheme:

[0009] The support assembly includes a bottom column, the bottom end of the bottom column is fixedly connected to the bottom end of the top end inner wall of the machine body, the top end inner wall of the machine body is fixedly connected with a support plate, the top end of the support plate is fixedly connected with a bottom plate, and the top end of the bottom plate is fixedly connected with a top box.

[0010] As a further description of the above technical scheme:

[0011] The drive assembly includes a motor, the front end of the motor is fixedly connected to the top end inner wall front side of the support assembly, the drive end of the motor is fixedly connected with a main shaft, and the external rotation of the main shaft is connected with a support block one.

[0012] As a further description of the above technical scheme:

[0013] The welding assembly includes a plurality of limit posts, the two ends of the plurality of limit posts are fixedly connected to the four sides of the top end inner wall of the machine body, the external sliding connection of the plurality of limit posts is connected with a lifting plate, the top end sliding connection of the lifting plate is connected with a welding box, the inner wall of the welding box is detachably connected with a template, and the top end of the top end inner wall of the machine body is fixedly connected with a pressing plate.

[0014] As a further description of the above technical solutions:

[0015] The cooling assembly comprises a supporting block two, the right side of the supporting block two is fixedly connected to the left bottom end of the machine body, the inner wall of the supporting block two is fixedly connected with a funnel, the inner wall of the machine body is fixedly connected with a water pump, the bottom end of the water pump is fixedly connected with a water suction pipe, and the output end of the water pump is fixedly connected with a conveying pipe.

[0016] As a further description of the above technical solutions:

[0017] The outer part of the limiting column is fixedly connected to the inner wall of the supporting plate, the bottom end of the supporting block one is fixedly connected to the inner wall bottom end of the top box, and the two ends of the rotating shaft are both rotationally connected to the inner wall of the top box.

[0018] As a further description of the above technical solutions:

[0019] The bottom end of the sliding block is slidingly connected to the top end of the top box, the bottom end of the rubber pad is in contact with the top end of the top box, and the four sides of the limiting block are all slidingly connected to the inner wall of the top end of the top box.

[0020] As a further description of the above technical solutions:

[0021] One end of the spring is fixedly connected to the top end of the sliding block, and the other end of the spring is fixedly connected to the bottom end of the clamping plate.

[0022] As a further description of the above technical solutions:

[0023] The bottom end of the water suction pipe is in contact with the bottom end inner wall bottom end of the machine body, and the outer part of the conveying pipe is fixedly connected to the inside of the top box.

[0024] The utility model has the advantages of the following beneficial effects:

[0025] 1、The utility model discloses a limiting block, a sliding block, a clamping plate, a spring and a rubber pad are cooperated, the automobile interior plastic that needs to be fused is pulled flat, prevents the problem that the finished product appears tiny bubble because of the wrinkle on the surface when fusing, and the purpose that improves the fusion quality is achieved.

[0026] 2、The utility model discloses a supporting block two, a funnel, a water pump, a water suction pipe and a conveying pipe are cooperated, realize the quick multiple cooling treatment to the plastic product of fusion, greatly reduce the time period of fusing plastic, and the purpose that improves the fusion efficiency is achieved. DRAWINGS

[0027] Figure 1A three-dimensional schematic view of the automobile interior plastic welding machine is provided in the utility model.

[0028] Figure 2 A structure schematic view of the welding box of the automobile interior plastic welding machine is provided in the utility model.

[0029] Figure 3 A structure schematic view of the top box of the automobile interior plastic welding machine is provided in the utility model.

[0030] Figure 4 For Figure 2 The enlarged view of A in the utility model is provided.

[0031] Figure 5 A structure schematic view of the water pump of the automobile interior plastic welding machine is provided in the utility model.

[0032] Legend:

[0033] 1, machine body, 2, machine door, 3, observation window, 4, bottom column, 5, support plate, 6, bottom plate, 7, top box, 8, motor, 9, main shaft, 10, support block one, 11, bevel gear one, 12, rotating shaft, 13, bevel gear two, 14, top disc, 15, connecting rod, 16, limit block, 17, sliding block, 18, clamping plate, 19, spring, 20, rubber pad, 21, limit column, 22, lifting plate, 23, welding box, 24, template, 25, pressing plate, 26, support block two, 27, hopper, 28, water pump, 29, water suction pipe, 30, conveying pipe. Specific implementation

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] With reference to Figures 1-2 An automobile interior plastic welding machine is provided in one embodiment of the utility model, which comprises a machine body 1, the front end of the machine body 1 is rotationally connected with a machine door 2, the front end of the machine door 2 is provided with an observation window 3, the observation window 3 can be used to observe the welding condition of the automobile interior plastic product in the machine body 1, the bottom end of the inner wall of the top end of the machine body 1 is fixedly connected with a support assembly, the support assembly comprises a bottom column 4, the bottom end of the bottom column 4 is fixedly connected to the bottom end of the inner wall of the top end of the machine body 1, and the machine body 1 plays a supporting and fixing role for the bottom column 4.

[0036] With reference to Figures 2-3The inner wall of the top end of the body 1 is fixedly connected with a support plate 5, the top end of the support plate 5 is fixedly connected with a bottom plate 6, the top end of the bottom plate 6 is fixedly connected with a top box 7, the bottom plate 6 here provides a support point for the top box 7, the inner wall of the top end of the support assembly is fixedly connected with a driving assembly, the driving assembly comprises a motor 8, the front end of the motor 8 is fixedly connected to the inner wall front side of the top end of the support assembly, the driving end of the motor 8 is fixedly connected with a main shaft 9, the motor 8 here will drive the main shaft 9 to rotate after starting.

[0037] With reference to Figure 3 The outer end of the main shaft 9 is rotatably connected with a support block one 10, the bottom end of the support block one 10 is fixedly connected to the inner wall bottom end of the top box 7, the support block one 10 here is used to provide stable support for the main shaft 9, to ensure its stability when rotating, the outer rear end of the driving assembly is fixedly connected with a bevel gear one 11, the top end of the support assembly is rotatably connected with a rotating shaft 12, the main shaft 9 here will drive the bevel gear one 11 to rotate when rotating, both ends of the rotating shaft 12 are rotatably connected to the inner wall of the top box 7.

[0038] With reference to Figure 3 The outer middle end of the rotating shaft 12 is fixedly connected with a bevel gear two 13, the bevel gear one 11 and the bevel gear two 13 are meshingly connected, the bevel gear one 11 here can drive the bevel gear two 13 to rotate when rotating, the outer top end of the rotating shaft 12 is rotatably connected with a top disc 14, the bottom end of the top disc 14 is rotatably connected with two connecting rods 15, the rotating shaft 12 here can drive the rotation of the top disc 14 when rotating, the other end of the connecting rod 15 is rotatably connected with a limiting block 16.

[0039] With reference to Figures 3-4 The four sides of the limiting block 16 are slidably connected to the inner wall of the top end of the top box 7, the limiting block 16 here mainly ensures that it always maintains a straight line when sliding in the inner wall of the top end of the top box 7, the top end of the limiting block 16 is fixedly connected with a sliding block 17, the bottom end of the sliding block 17 is slidably connected to the top end of the top box 7, the top end of the sliding block 17 is rotatably connected with a clamping plate 18, the clamping plate 18 here can clamp the plastic used for automobile interior decoration, and it can be pulled out when it is pulled out, preventing wrinkles on the surface, thereby preventing the problem of bubbles in the subsequent hot melt product.

[0040] With reference to Figure 2 and Figure 4The top end of the sliding block 17 is provided with a spring 19, one end of the spring 19 is fixedly connected to the top end of the sliding block 17, and the other end of the spring 19 is fixedly connected to the bottom end of the clamping plate 18. The spring 19 here is used for resetting and clamping. The bottom end of the two clamping plates 18 is fixedly connected with two rubber pads 20. The rubber pads 20 here are used to clamp the plastic and prevent it from coming off. The bottom end of the rubber pad 20 is in contact with the top end of the top box 7. The top end inner wall of the machine body 1 is fixedly connected with a welding assembly. The welding assembly here can perform welding operation on the clamped plastic.

[0041] Referring to Figure 2 The welding assembly includes a plurality of limiting columns 21, the outer portion of the limiting column 21 is fixedly connected to the inner wall of the support plate 5, and the two ends of the plurality of limiting columns 21 are respectively fixedly connected to the four sides of the top end inner wall of the machine body 1. The machine body 1 provides stable support for the plurality of limiting columns 21. The outer portion of the plurality of limiting columns 21 is slidably connected with a lifting plate 22, and the top end of the lifting plate 22 is slidably connected with a welding box 23. The welding box 23 is responsible for direct contact with the plastic for welding.

[0042] Referring to Figure 2 and Figure 5 The inner wall of the welding box 23 is detachably connected with a template 24. The template 24 is detachable and can be replaced with the required plastic shape for welding at any time, which is more suitable. The top end inner wall of the machine body 1 is fixedly connected with a pressing plate 25. The left bottom end of the machine body 1 is fixedly connected with a cooling assembly. The cooling assembly is used for rapid and multiple cooling operation of the plastic after welding, so that the plastic is quickly formed, the production cycle is reduced, and the cooling assembly includes a support block two 26.

[0043] Referring to Figure 3 and Figure 5 The right side of the support block two 26 is fixedly connected to the left bottom end of the machine body 1. The inner wall of the support block two 26 is fixedly connected with a hopper 27. The hopper 27 can be filled with clean water. The inner wall of the machine body 1 is fixedly connected with a water pump 28. The bottom end of the water pump 28 is fixedly connected with a water suction pipe 29. The water suction pipe 29 can be used to pump clean water. The bottom end of the water suction pipe 29 is in contact with the bottom end inner wall of the machine body 1. The output end of the water pump 28 is fixedly connected with a conveying pipe 30.

[0044] Referring to Figure 3 and Figure 5The outer part of the conveying pipe 30 is fixedly connected to the inner part of the top box 7, and the clean water is further conveyed into the inner part of the conveying pipe 30 after being sucked into the inner part of the water pump 28. Since the conveying pipe 30 is fixedly connected to the inner part of the top box 7 and is in a surrounding mode, the top box 7 can be rapidly cooled in an overall mode, so that the plastic product on the top box 7 is also rapidly cooled. The hot water passing through the top box 7 is conveyed back to the bottom cavity of the machine body 1 through the conveying pipe 30, so as to be mixed with the clean water in the cavity to exchange heat, and then is continuously sucked out to perform the next cooling treatment.

[0045] Working principle: When the staff uses the plastic welding machine to weld the plastic of the automobile interior, the machine door 2 can be opened first, and then the plastic is placed at the top end of the top box 7. Then the motor 8 in the inner part of the top box 7 can be started. At this time, the motor 8 drives the main shaft 9 to rotate, so as to drive the bevel gear one 11 to rotate. The support block one 10 is used for supporting, because the bevel gear one 11 and the bevel gear two 13 at the outer top end of the rotating shaft 12 are engaged, so the bevel gear two 13 is also driven to rotate, so as to drive the top disc 14 to rotate, and further drive the two connecting rods 15 at the top end of the outer side to shrink to the center, so that the limiting block 16, the sliding block 17 and the clamping plate 18 at the top end can be moved. When the plastic edge to be clamped and fixed is moved to the position, the clamping plate 18 can be pressed down, and the other end is lifted up under the action of the spring 19. Then the two rubber pads 20 clamp the plastic. At this time, the motor 8 can be controlled to reverse, so as to pull the plastic to the two sides, and the plastic is pulled flat to prevent small bubbles from appearing on the surface of the plastic due to wrinkles during welding.

[0046] At this time, the clean water can be poured from the inner part of the funnel 27 supported by the support block two 26 into the bottom cavity of the machine body 1. Then the lifting plate 22 can be controlled to slide on the limiting column 21, so that the mold plate 24 on the inner wall of the welding box 23 is tightly pressed on the surface of the plastic. Then the pressing plate 25 is started. Under the support of the bottom column 4, the support plate 5 and the bottom plate 6, the plastic is pressed into the shape of the mold plate 24 by using the welding box 23. Then the lifting plate 22 is controlled to drive the welding box 23 to rise. At this time, the water pump 28 can be started to suck the clean water into the water suction pipe 29, and then into the conveying pipe 30. Since the conveying pipe 30 is embedded in the inner part of the top box 7, the plastic after welding can be rapidly cooled. The hot water passing through the top box 7 is returned to the cavity of the machine body 1, so as to exchange heat with the remaining clean water, and then the rapid cooling can be performed for multiple times, so as to improve the welding rate.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A machine for welding automotive interior plastic, comprising a body (1), characterized in that: The front end of the machine body (1) is rotatably connected with a machine door (2), the front end of the machine door (2) is provided with an observation window (3), the inner wall of the top end of the machine body (1) is fixedly connected with a supporting assembly, the inner wall of the top end of the supporting assembly is fixedly connected with a driving assembly, the outer rear end of the driving assembly is fixedly connected with a bevel gear one (11), the inner wall of the top end of the supporting assembly is rotatably connected with a rotating shaft (12), the outer middle end of the rotating shaft (12) is fixedly connected with a bevel gear two (13), the bevel gear one (11) and the bevel gear two (13) are in meshing connection, the outer top end of the rotating shaft (12) is rotatably connected with a top disc (14), the bottom end of the outer side of the top disc (14) is rotatably connected with two connecting rods (15), the other end of the connecting rod (15) is rotatably connected with a limiting block (16), the top end of the limiting block (16) is fixedly connected with a sliding block (17), the top end of the sliding block (17) is rotatably connected with a clamping plate (18), the top end of the sliding block (17) is provided with a spring (19), the bottom end of the side close to the other of the two clamping plates (18) is fixedly connected with two rubber pads (20), the inner wall of the top end of the machine body (1) is fixedly connected with a fusion assembly, the left bottom end of the machine body (1) is fixedly connected with a cooling assembly.

2. The automotive interior plastic welding machine of claim 1, wherein: The supporting assembly comprises a bottom column (4), the bottom end of the bottom column (4) is fixedly connected with the inner wall of the top end of the machine body (1), the inner wall of the top end of the machine body (1) is fixedly connected with a supporting plate (5), the top end of the supporting plate (5) is fixedly connected with a bottom plate (6), the top end of the bottom plate (6) is fixedly connected with a top box (7).

3. The automotive interior plastic welding machine of claim 2, wherein: The driving assembly comprises a motor (8), the front end of the motor (8) is fixedly connected with the inner wall of the top end of the supporting assembly, the driving end of the motor (8) is fixedly connected with a main shaft (9), the outer end of the main shaft (9) is rotatably connected with a supporting block one (10).

4. The automotive interior plastic welding machine of claim 3, wherein: The fusion assembly comprises a plurality of limiting columns (21), the two ends of the plurality of limiting columns (21) are respectively fixedly connected with the four sides of the inner wall of the top end of the machine body (1), the outer end of the plurality of limiting columns (21) is slidably connected with a lifting plate (22), the top end of the lifting plate (22) is slidably connected with a fusion box (23), the inner wall of the fusion box (23) is detachably connected with a template (24), the inner wall of the top end of the machine body (1) is fixedly connected with a pressing plate (25).

5. The automotive interior plastic welding machine of claim 2, wherein: The cooling assembly comprises a supporting block two (26), the right side of the supporting block two (26) is fixedly connected with the left bottom end of the machine body (1), the inner wall of the supporting block two (26) is fixedly connected with a hopper (27), the inner wall of the machine body (1) is fixedly connected with a water pump (28), the bottom end of the water pump (28) is fixedly connected with a water suction pipe (29), the output end of the water pump (28) is fixedly connected with a conveying pipe (30).

6. The automotive interior plastic welding machine of claim 4, wherein: The outer part of the limiting column (21) is fixedly connected to the inner wall of the support plate (5), the bottom end of the support block (10) is fixedly connected to the bottom end of the inner wall of the top box (7), and both ends of the rotating shaft (12) are rotatably connected to the inner wall of the top box (7).

7. The automotive interior plastic welding machine of claim 2, wherein: The bottom end of the sliding block (17) is slidingly connected to the top end of the top box (7), the bottom end of the rubber pad (20) is in contact with the top end of the top box (7), and the four sides of the limiting block (16) are slidingly connected to the inner wall of the top end of the top box (7).

8. The automotive interior plastic welding machine of claim 1, wherein: One end of the spring (19) is fixedly connected to the top end of the sliding block (17), and the other end of the spring (19) is fixedly connected to the bottom end of the clamping plate (18).

9. The automotive interior plastic welding machine of claim 5, wherein: The bottom end of the water pumping pipe (29) is in contact with the bottom end of the inner wall of the bottom end of the machine body (1), and the outer part of the conveying pipe (30) is fixedly connected to the inside of the top box (7).

Citation Information

Patent Citations

  • Ultrasonic plastic welding machine

    CN216182864U