Plastic welding machine
By designing a synchronously moving base and an automatic clamping mechanism, the problems of low efficiency and inaccurate positioning in traditional plastic welding machines have been solved, realizing an efficient and safe continuous welding process and improving welding quality and precision.
Patent Information
- Application Number
- CN202520583735.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Traditional plastic welding machines operate at a single station, resulting in low production efficiency. They require manual loading and unloading, and insufficient workpiece fixation during the welding process leads to positional deviations, affecting product accuracy and quality.
A plastic welding machine with two bases moving synchronously in opposite directions was designed. It uses cylinders and gear meshing to achieve continuous welding. It is equipped with an automatic clamping mechanism and a buffer device to ensure workpiece stability and accurate positioning.
It enables continuous welding without stopping the machine to wait for material to be fed, improving production efficiency and safety, and ensuring welding quality and precision.
Smart Images
Figure CN223961759U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of plastic processing equipment, and specifically relates to a plastic welding machine. Background Technology
[0002] A plastic welding machine is a device used to join plastic materials together. It uses heating and pressure to melt the surface of the plastic, and then cools and solidifies it, thereby achieving the welding of the plastic. In modern plastic product manufacturing, plastic welding is a key step.
[0003] Problems with existing technology:
[0004] Traditional welding machines are mostly single-station operations, capable of welding only one plastic workpiece at a time. After welding one workpiece, manual loading and unloading are required, a time-consuming process that disrupts continuous production and significantly reduces efficiency, making it difficult to meet the demands of large-scale production. Furthermore, the workpiece is poorly secured during welding. When the welding head applies pressure to the workpiece, the lack of an effective fixing device makes it prone to displacement, leading to welding position deviations and affecting product precision and quality. Utility Model Content
[0005] The purpose of this invention is to provide a plastic welding machine that can realize the synchronous reverse movement of two machine bases, and can continuously weld workpieces without stopping the machine to wait for material to be loaded, which greatly improves work efficiency.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A plastic welding machine includes a worktable. A mounting frame is provided on one side of the top of the worktable. Two machine bases are slidably mounted on one side of the mounting frame. Toothed plates are fixed on opposite sides of the two machine bases. Gears that mesh with the two toothed plates are rotatably mounted on the outer wall of the mounting frame. A melting head is provided at the bottom of the machine base. A cylinder connected to one of the machine bases is provided on one side of the mounting frame. A slide is slidably mounted on the top of the worktable and directly below the melting head. A insertion groove is provided on one side of the slide. A buffer rod is slidably mounted inside the insertion groove. A first spring fixed to the buffer rod is fixed inside the insertion groove. One end of the buffer rod extends to the outside of the insertion groove and is rotatably mounted with a connecting rod. The other end of the connecting rod is rotatably connected to one side of the bottom of the machine base. An automatic clamping mechanism for clamping workpieces is provided on the top of the slide.
[0008] Multiple fixing blocks are fixed on the top of the worktable and on one side of the slide, and a second spring fixed to the slide is fixed on one side of each fixing block.
[0009] The automatic clamping mechanism includes mounting plates fixed on both sides of the top of the slide table. A mounting rod slides through one side of the mounting plate. A clamping plate is fixed to one end of each of the two mounting rods. A telescopic guide rod is provided between the outer walls of the clamping plate and the mounting plate. A third spring is sleeved on the outer wall of the telescopic guide rod, and the two ends of the third spring are fixed to the outer walls of the clamping plate and the mounting plate, respectively. Symmetrical limiting plates are provided on the top of the worktable and on both sides of the slide table. A through groove is opened on one side of the limiting plate, and a cylindrical block is fixed inside the through groove at one end of the mounting rod.
[0010] The limiting plate is integrally formed from two vertical plates and one inclined plate, with an inclined plate between the two vertical plates, and the two limiting plates are arranged in a bucket shape on both sides of the slide table.
[0011] The top of the worktable is provided with a guide rail that is slidably connected to the slide, and both ends of the slide are provided with limit blocks.
[0012] The technical effects achieved by this utility model are as follows:
[0013] This invention features two bases and a melting head. Utilizing a cylinder and the meshing of a gear plate and gears, the two bases move synchronously in opposite directions, enabling continuous welding of workpieces without requiring downtime for refueling, significantly improving work efficiency. While one melting head is operating, the other slide moves away from it, allowing operators to add material from a safe area, avoiding proximity to hazardous areas during welding and significantly enhancing safety. A first spring ensures that when the melting head presses against the workpiece on the slide, a buffer rod moves within the insertion slot while the slide remains stationary, effectively reducing equipment sway and displacement during operation, ensuring stability, and ultimately improving welding quality.
[0014] The automatic clamping mechanism utilizes the interaction between the cylindrical block and the limiting plate as the slide moves, along with the action of the third spring, to automatically move the clamping plate closer to or further away, thus completing the automatic clamping, unloading, and loading of workpieces. This design increases the practicality of the equipment, reduces manual operation steps, and improves the stability of the equipment's operation. Simultaneously, the automatic clamping function ensures more accurate positioning of the workpiece during the welding process, further guaranteeing the welding quality. Attached Figure Description
[0015] Figure 1 This is a frontal three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is a rear-view three-dimensional structural schematic diagram of the present invention;
[0017] Figure 3 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 4 This is a partial cross-sectional structural diagram of the present invention.
[0019] The attached diagram lists the components represented by each number as follows:
[0020] 1. Workbench; 2. Mounting frame; 3. Base; 4. Gear plate; 5. Gear; 6. Melting head; 7. Slide table; 8. Connecting rod; 9. Buffer rod; 10. Insertion slot; 11. First spring; 12. Second spring; 13. Fixing block; 14. Cylinder; 15. Mounting plate; 16. Mounting rod; 17. Clamping plate; 18. Limiting plate; 19. Through groove; 20. Columnar block; 21. Third spring. Detailed Implementation
[0021] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0022] like Figure 1-4 As shown, a plastic welding machine includes a worktable 1. A mounting frame 2 is provided on one side of the top of the worktable 1. Two machine bases 3 are slidably mounted on one side of the mounting frame 2. Toothed plates 4 are fixed on opposite sides of the two machine bases 3. Gears 5 that mesh with the two toothed plates 4 are rotatably mounted on the outer wall of the mounting frame 2. A melting head 6 is provided at the bottom of the machine base 3. A cylinder 14 connected to one of the machine bases 3 is provided on one side of the mounting frame 2. A slide table 7 is slidably mounted on the top of the worktable 1 and directly below the melting head 6. An insertion groove 10 is provided on one side of the slide table 7. The interior of the insertion groove 10 slides... A buffer rod 9 is provided, and a first spring 11 fixed to the inner side of the insertion slot 10 is fixed to the buffer rod 9. One end of the buffer rod 9 extends to the outside of the insertion slot 10 and is rotatably mounted with a connecting rod 8. The other end of the connecting rod 8 is rotatably connected to one side of the bottom of the machine base 3. An automatic clamping mechanism for clamping workpieces is provided on the top of the slide table 7. Multiple fixing blocks 13 are fixed on the top of the worktable 1 and on one side of the slide table 7. A second spring 12 fixed to the slide table 7 is fixed on one side of the fixing block 13. A guide rail that is slidably connected to the slide table 7 is provided on the top of the worktable 1. Limit blocks are provided at both ends of the slide table 7.
[0023] According to the above structure, with two bases 3 and a dissolving head 6, when the cylinder 14 pushes one of the bases 3 to move, the other base 3 moves synchronously in the opposite direction through the meshing of the toothed plate 4 and the gear 5. When the base 3 moves down, it drives the dissolving head 6 to move down. At the same time, the base 3 drives the buffer rod 9 to move to one side through the connecting rod 8. The buffer rod 9 drives the slide table 7 to move closer to the dissolving head 6. The limit block makes the slide table 7 stop directly below the dissolving head 6. The first spring 11 causes the buffer rod 9 to move in the insertion groove 10 when the dissolving head 6 squeezes the workpiece on the slide table 7, while the slide table 7 does not move, which improves the stability of the equipment. Similarly, when the other dissolving head 6 moves up, the other slide table 7 moves away from the dissolving head 6, which makes it easier to put the workpiece on the slide table 7. This allows the equipment to continuously weld the workpiece, improves the working efficiency, improves the safety during feeding, and enhances the effectiveness of the equipment.
[0024] The automatic clamping mechanism includes mounting plates 15 fixed on both sides of the top of the slide table 7. Mounting rods 16 slide through one side of the mounting plates 15. Clamping plates 17 are fixed at opposite ends of the two mounting rods 16. Telescopic guide rods are provided between the outer walls of the clamping plates 17 and the mounting plates 15. A third spring 21 is sleeved on the outer wall of the telescopic guide rod, and the two ends of the third spring 21 are fixed to the outer walls of the clamping plates 17 and the mounting plates 15, respectively. Symmetrical limiting plates 18 are provided on the top of the worktable 1 and on both sides of the slide table 7. A through groove 19 is provided on one side of the limiting plate 18. A cylindrical block 20 is fixed inside the through groove 19 through one end of the mounting rod 16. The limiting plate 18 is integrally formed by two vertical plates and one inclined plate. An inclined plate is provided between the two vertical plates. The two limiting plates 18 are arranged in a bucket shape on both sides of the slide table 7.
[0025] According to the above structure, when the slide table 7 moves closer to the melting head 6, the cylindrical block 20 slides along the shape of the limiting plate 18, and with the help of the third spring 21, pushes the clamping plate 17 to one side, so that the two clamping plates 17 move closer to each other, which can clamp the workpiece; when the slide table 7 moves away from the melting head 6, the cylindrical block 20 will pull the clamping plate 17 to one side through the mounting rod 16, so that the two clamping plates 17 move away from each other, which facilitates the unloading and reloading of the workpiece, realizes automatic clamping of the workpiece, increases the practicality of the equipment, and also improves the stability of the equipment operation.
[0026] The working principle of this utility model is as follows: When the cylinder 14 is activated, it pushes one of the bases 3 to move. Due to the meshing of the toothed plate 4 and the gear 5, the other base 3 will move synchronously in the opposite direction. When the base 3 moves downward, it drives the melting head 6 to move downward. At the same time, the base 3 drives the buffer rod 9 to move to one side through the connecting rod 8. The buffer rod 9 then drives the slide 7 to move closer to the melting head 6. When the slide 7 moves directly below the melting head 6, the limiting block stops its movement. At this time, the melting head 6 performs extrusion welding on the workpiece on the slide 7. During the extrusion process, the first spring 11 causes the buffer rod 9 to move within the insertion groove 10, while the slide 7 does not move, ensuring the stability of the welding process. When one base 3 and the melting head 6 move upward, the other slide 7 will move away from the melting head 6, making it convenient for the operator to place the workpiece on the slide 7. During the movement of the slide table 7, the automatic clamping mechanism functions. When the slide table 7 moves closer to the melting head 6, the cylindrical block 20 slides along the shape of the limiting plate 18, cooperating with the third spring 21 to push the clamping plate 17 to one side, bringing the two clamping plates 17 closer together to clamp the workpiece. When the slide table 7 moves away from the melting head 6, the cylindrical block 20 pulls the clamping plate 17 to one side via the mounting rod 16, moving the two clamping plates 17 away from each other, facilitating unloading and reloading. This cycle repeats, enabling continuous operation of the equipment.
[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A plastic welding machine, comprising a workbench (1), characterized in that: A mounting bracket (2) is provided on one side of the top of the workbench (1). Two machine bases (3) are slidably provided on one side of the mounting bracket (2). Gear plates (4) are fixed on opposite sides of the two machine bases (3). Gears (5) that mesh with the two gear plates (4) are rotatably mounted on the outer wall of the mounting bracket (2). A dissolving head (6) is provided at the bottom of the machine base (3). A cylinder (14) connected to one of the machine bases (3) is provided on one side of the mounting bracket (2). The top of the workbench (1) and located at the dissolving head (6) A slide table (7) is slidably installed directly below the slide table (7). A insertion slot (10) is provided on one side of the slide table (7). A buffer rod (9) is slidably installed inside the insertion slot (10). A first spring (11) is fixed to the inner side of the insertion slot (10) and fixed to the buffer rod (9). One end of the buffer rod (9) extends to the outside of the insertion slot (10) and is rotatably installed with a connecting rod (8). The other end of the connecting rod (8) is rotatably connected to the bottom side of the machine base (3). An automatic clamping mechanism for clamping workpieces is provided on the top of the slide table (7).
2. The plastic welding machine according to claim 1, characterized in that: Multiple fixing blocks (13) are fixed on the top of the worktable (1) and on one side of the slide (7), and a second spring (12) fixed to the slide (7) is fixed on one side of the fixing block (13).
3. The plastic welding machine according to claim 1, characterized in that: The automatic clamping mechanism includes mounting plates (15) fixed on both sides of the top of the slide (7). A mounting rod (16) slides through one side of the mounting plate (15). A clamping plate (17) is fixed at one end of the two mounting rods (16) opposite to each other. A telescopic guide rod is provided between the outer walls of the clamping plate (17) and the mounting plate (15). A third spring (21) is sleeved on the outer wall of the telescopic guide rod. The two ends of the third spring (21) are fixed to the outer walls of the clamping plate (17) and the mounting plate (15) respectively. A mutually symmetrical limiting plate (18) is provided on the top of the worktable (1) and on both sides of the slide (7). A through groove (19) is opened on one side of the limiting plate (18). A cylindrical block (20) is fixed inside the through groove (19) at one end of the mounting rod (16).
4. A plastic welding machine according to claim 3, characterized in that: The limiting plate (18) is integrally formed from two vertical plates and one inclined plate. An inclined plate is provided between the two vertical plates, and the two limiting plates (18) are arranged in a bucket shape on both sides of the slide (7).
5. A plastic welding machine according to claim 1, characterized in that: The top of the worktable (1) is provided with a guide rail that is slidably connected to the slide (7), and both ends of the slide (7) are provided with limit blocks.