An online adhesive strip welding machine

Abstract

This utility model discloses an online adhesive strip welding machine, including a worktable. Multiple guide rollers are rotatably mounted on the upper surface of the worktable via mounting grooves. A bidirectional screw is rotatably mounted on the bottom wall of the worktable via a moving groove. A stepper motor connected to the bidirectional screw is fixedly mounted on the outer wall of the worktable. Two moving blocks are rotatably mounted on the outer wall of the bidirectional screw via threads. A limit rod is fixedly mounted inside the moving groove, and the limit rod slides through the two moving blocks. This utility model, by setting up components such as the bidirectional screw, limit rod, moving blocks, and positioning plate, can achieve precise positioning of adhesive strips of different widths. The stepper motor drives the bidirectional screw to rotate, and under the constraint of the limit rod, the two moving blocks can move synchronously towards or away from each other, thereby driving the positioning plate to adjust the spacing. This effectively avoids lateral deviation of the adhesive strip during conveying and welding, significantly reducing the welding deviation rate and improving the product qualification rate.

Description

Technical Field

[0001] This utility model relates to the field of adhesive strip processing technology, and in particular to an online adhesive strip welding machine. Background Technology

[0002] Rubber strips are strip or rod-shaped sealing components made of rubber or elastic materials, mainly used for waterproofing, dustproofing, sound insulation and shock absorption in doors, windows, automobiles and other fields.

[0003] In the production and processing of rubber strips, it is often necessary to weld two rubber strips together using a welding machine (such as butt extension or lap splicing). In the existing technology, double rubber strip welding mostly relies on manual assistance for feeding and positioning. However, during the welding process of the welding machine, the positioning accuracy of the double rubber strips is poor, and welding deviation is prone to occur, resulting in low product qualification rate and insufficient practicality. Therefore, it is necessary to redesign an online rubber strip welding machine to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an online adhesive strip welding machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An online adhesive strip welding machine includes a worktable. Multiple guide rollers are rotatably mounted on the upper surface of the worktable via mounting grooves. A bidirectional screw is rotatably mounted on the bottom wall of the worktable via a moving groove. A stepper motor connected to the bidirectional screw is fixedly mounted on the outer wall of the worktable. Two moving blocks are rotatably mounted on the outer wall of the bidirectional screw via threads. A limit rod is fixedly mounted inside the moving groove, and the limit rod slides through the two moving blocks. Multiple positioning plates are fixedly mounted on the upper surface of each of the two moving blocks. A support plate is fixedly mounted on the upper surface of the worktable. A servo hydraulic cylinder is fixedly mounted on the bottom wall of the support plate. A welding head is fixedly mounted on the telescopic end of the servo hydraulic cylinder. Two connecting plates are fixedly connected to the bottom wall of the support plate via a telescopic mechanism. Connecting frames are fixedly connected to the bottom walls of the two connecting plates via a buffer mechanism. Feeding rollers are rotatably mounted inside each of the two connecting frames. A servo motor connected to the rotating shaft of the feeding roller on the same side is fixedly mounted on the outer wall of each of the two connecting frames.

[0007] Preferably, the telescopic mechanism includes an electric actuator fixedly installed on the bottom wall of the support plate, and the telescopic end of the electric actuator is fixedly connected to the upper surface of the connecting plate.

[0008] Preferably, the buffer mechanism includes a spring telescopic rod fixedly installed on the bottom wall of the connecting plate, and the telescopic end of the spring telescopic rod is fixedly connected to the upper end face of the connecting frame.

[0009] Preferably, two guide rods are fixedly installed on the upper surface of each of the two connecting plates, and each guide rod slides through the support plate.

[0010] Preferably, a controller is fixedly installed on the outer wall of the workbench, and the controller is electrically connected to a stepper motor, a servo hydraulic cylinder, a welding head, two electric push rods, and two servo motors.

[0011] The beneficial effects of this utility model are:

[0012] 1. By setting up components such as a bidirectional screw, a limiting rod, moving blocks, and a positioning plate, precise positioning of adhesive strips of different widths can be achieved. The stepper motor drives the bidirectional screw to rotate, and under the restriction of the limiting rod, the two moving blocks can move synchronously towards or away from each other, thereby driving the positioning plate to adjust the spacing. This effectively avoids the adhesive strip from shifting left or right during the conveying and welding process, greatly reduces the welding offset rate, and improves the product qualification rate.

[0013] 2. By setting up components such as electric push rods, spring telescopic rods, and feeding rollers, it can stably and adaptably convey rubber strips of different thicknesses. The electric push rods can flexibly adjust the height of the feeding rollers according to the thickness of the rubber strips to ensure that the feeding rollers and rubber strips form appropriate contact pressure. The spring telescopic rods play a buffering role and can automatically extend and retract according to the slight changes in the thickness of the rubber strips during the conveying process, so that the feeding rollers always press on the rubber strips with stable pressure, ensuring the continuity of conveying. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an online adhesive strip welding machine proposed in this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0016] Figure 3 This is a side vertical section view of an online adhesive strip welding machine proposed in this utility model;

[0017] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0018] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0019] In the diagram: 1. Workbench, 2. Guide roller, 3. Bidirectional screw, 4. Stepper motor, 5. Limit rod, 6. Moving block, 7. Positioning plate, 8. Support plate, 9. Servo hydraulic cylinder, 10. Welding head, 11. Electric actuator, 12. Connecting plate, 13. Guide rod, 14. Spring telescopic rod, 15. Connecting frame, 16. Feeding roller, 17. Servo motor, 18. Controller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-5 An online adhesive strip welding machine includes a worktable 1. Multiple guide rollers 2 are rotatably mounted on the upper surface of the worktable 1 via mounting grooves. A bidirectional screw 3 is rotatably mounted on the bottom wall of the worktable 1 via a moving groove. A stepper motor 4 connected to the bidirectional screw 3 is fixedly mounted on the outer wall of the worktable 1. Two moving blocks 6 are rotatably mounted on the outer wall of the bidirectional screw 3 via threads. A limit rod 5 is fixedly mounted inside the moving groove, and the limit rod 5 slides through the two moving blocks 6. Multiple positioning plates 7 are fixedly mounted on the upper surface of each of the two moving blocks 6. A support plate 8 is fixedly mounted on the upper surface of the worktable 1. A servo hydraulic cylinder 9 is fixedly mounted on the bottom wall of the support plate 8. A welding head 10 is fixedly mounted on the telescopic end of the servo hydraulic cylinder 9. Two connecting plates 12 are fixedly connected to the bottom wall of the support plate 8 via a telescopic mechanism. Connecting frames 15 are fixedly connected to the bottom walls of the two connecting plates 12 via a buffer mechanism. Feeding rollers 16 are rotatably mounted inside each of the two connecting frames 15. A servo motor 17 connected to the rotating shaft of the feeding roller 16 on the same side is fixedly mounted on the outer wall of each of the two connecting frames 15.

[0022] Furthermore, multiple guide rollers 2 are parallel and evenly spaced, and their surfaces are polished to reduce frictional resistance during rubber strip conveying. The two ends of the bidirectional screw 3 are rotatably connected to the inner wall of the moving groove through bearings to ensure that the stepper motor 4 can stably drive the two moving blocks 6 to perform opposite synchronous movements.

[0023] The telescopic mechanism includes an electric actuator 11 fixedly installed on the bottom wall of the support plate 8, and the telescopic end of the electric actuator 11 is fixedly connected to the upper end face of the connecting plate 12.

[0024] Furthermore, the electric actuator 11 adopts a high-precision servo control type, and its extension stroke can be precisely adjusted by the controller 18. Reinforcing ribs are provided at the connection between the connecting plate 12 and the electric actuator 11 to improve the load-bearing capacity of the overall structure and ensure that the pressing force of the feeding roller 16 on the rubber strip is stable and controllable.

[0025] The buffer mechanism includes a spring telescopic rod 14 fixedly installed on the bottom wall of the connecting plate 12, and the telescopic end of the spring telescopic rod 14 is fixedly connected to the upper end face of the connecting frame 15.

[0026] Furthermore, the spring telescopic rod 14 consists of an outer sleeve, an inner rod, and a return spring. The elastic coefficient of the return spring is designed to provide buffer compensation when there is a slight deviation in the thickness of the rubber strip, ensuring that the feeding roller 16 is always in close contact with the surface of the rubber strip, and also to avoid excessive pressure that could cause the rubber strip to deform.

[0027] Two guide rods 13 are fixedly installed on the upper surface of the two connecting plates 12, and each guide rod 13 slides through the support plate 8.

[0028] Furthermore, the guide rod 13 is made of high-strength alloy material, its outer wall is coated with wear-resistant grease, and a linear bearing is installed between it and the through hole of the support plate 8, which effectively reduces the frictional resistance during the lifting and lowering process of the connecting plate 12, ensures the accurate movement trajectory of the feeding roller 16, and improves the stability of the rubber strip conveying.

[0029] A controller 18 is fixedly installed on the outer wall of the workbench 1. The controller 18 is electrically connected to the stepper motor 4, the servo hydraulic cylinder 9, the welding head 10, the two electric push rods 11, and the two servo motors 17.

[0030] Furthermore, the controller 18 is equipped with a touch screen and a data interface, which can preset welding parameters for different adhesive strips and store multiple process schemes. At the same time, it can display the operating status of each component in real time. When an abnormality occurs, it will automatically issue an alarm signal and stop the equipment operation, making it convenient for operators to troubleshoot the fault in a timely manner.

[0031] In use, two rubber strips can be placed below the feeding rollers 16 on both sides, with one end of the rubber strip aligned with the starting point of the guide roller 2. Then, the controller 18 controls the electric push rod 11 to work, and the telescopic end of the electric push rod 11 extends, driving the connecting plate 12 to move downward. The guide rod 13 slides in the support plate 8 to ensure the stability of the movement of the connecting plate 12. As the connecting plate 12 moves downward, the connecting frame 15 and the feeding roller 16 also descend. When they come into contact with the rubber strip, the spring telescopic rod 14 will adapt to the thickness of the rubber strip, so that the feeding roller 16 presses on the rubber strip with appropriate pressure. This avoids slippage of the rubber strip due to insufficient pressure and prevents damage to the rubber strip due to excessive pressure. Afterward, the operator starts the conveying program of the equipment through the controller 18, and the servo motor 17 starts to work, driving the feeding roller 16 to rotate. Under the action of friction, the two rubber strips are conveyed towards the welding head 10 with the cooperation of the corresponding feeding roller 16 and guide roller 2.

[0032] When the adhesive strip is conveyed to a certain distance and reaches the suitable positioning position, the controller 18 inputs parameters such as the width and thickness of the adhesive strip. The controller 18 automatically controls the stepper motor 4 to start, driving the bidirectional screw 3 to rotate. This causes the two moving blocks 6 to move relative to each other under the restriction of the limit rod 5, adjusting the distance between the positioning plates 7 to accommodate the width of the adhesive strip. This ensures that the adhesive strip will not shift left or right during subsequent conveying, achieving precise positioning. After positioning, the adhesive strip continues to be conveyed along the guide channel formed by the positioning plates 7 towards the welding head 10. When the adhesive strip is conveyed to the welding position, the controller 18 controls the servo motor 17 to stop working, and the adhesive strip stops conveying. At the same time, the controller 18 controls the extension end of the servo hydraulic cylinder 9 to extend, pushing the welding head 10 downward until it contacts the parts of the two adhesive strips to be welded. At this time, the welding head 10 starts to heat up. After reaching the set temperature, it maintains a certain pressure under the action of the servo hydraulic cylinder 9 to perform the welding operation on the adhesive strip.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An online adhesive strip welding machine, comprising a worktable (1), characterized in that, Multiple guide rollers (2) are rotatably mounted on the upper surface of the worktable (1) via mounting grooves. A bidirectional screw (3) is rotatably mounted on the bottom wall of the worktable (1) via a moving groove. A stepper motor (4) connected to the bidirectional screw (3) is fixedly mounted on the outer wall of the worktable (1). Two moving blocks (6) are rotatably mounted on the outer wall of the bidirectional screw (3) via threads. A limit rod (5) is fixedly mounted inside the moving groove. The limit rod (5) slides through the two moving blocks (6). Multiple positioning plates (7) are fixedly mounted on the upper surface of each of the two moving blocks (6). The upper surface of the worktable (1) A support plate (8) is fixedly installed. A servo hydraulic cylinder (9) is fixedly installed on the bottom wall of the support plate (8). A welding head (10) is fixedly installed on the telescopic end of the servo hydraulic cylinder (9). Two connecting plates (12) are fixedly connected to the bottom wall of the support plate (8) through a telescopic mechanism. A connecting frame (15) is fixedly connected to the bottom wall of both connecting plates (12) through a buffer mechanism. A feeding roller (16) is rotatably installed inside both connecting frames (15). A servo motor (17) connected to the rotating shaft of the feeding roller (16) on the same side is fixedly installed on the outer wall of both connecting frames (15).

2. The online adhesive strip welding machine according to claim 1, characterized in that, The telescopic mechanism includes an electric push rod (11) fixedly installed on the bottom wall of the support plate (8), and the telescopic end of the electric push rod (11) is fixedly connected to the upper end face of the connecting plate (12).

3. The online adhesive strip welding machine according to claim 2, characterized in that, The buffer mechanism includes a spring telescopic rod (14) fixedly installed on the bottom wall of the connecting plate (12), and the telescopic end of the spring telescopic rod (14) is fixedly connected to the upper end face of the connecting frame (15).

4. The online adhesive strip welding machine according to claim 3, characterized in that, Two guide rods (13) are fixedly installed on the upper surface of the two connecting plates (12), and each guide rod (13) slides through the support plate (8).

5. An online adhesive strip welding machine according to claim 4, characterized in that, A controller (18) is fixedly installed on the outer wall of the workbench (1). The controller (18) is electrically connected to the stepper motor (4), the servo hydraulic cylinder (9), the welding head (10), the two electric push rods (11), and the two servo motors (17).

Images