Positioning mechanism for plastic pipeline cutting

Abstract

The positioning mechanism for plastic pipeline cutting comprises a table body, a fixing device and an adjusting device, the fixing device and the adjusting device are located at the front end and the rear end of the table body respectively, a pipeline groove is formed in the upper end face of the table body, the fixing device comprises two arc-shaped clamps, a moving plate and a first electric push rod, and the moving plate is arranged on the moving plate. The arc-shaped clamps are located on the left side and the right side respectively, the back faces of the arc-shaped clamps are fixedly connected to one ends of the two moving rods, the moving plate is located on the back faces of the arc-shaped clamps, and the other ends of the two moving rods movably penetrate through the moving plate. According to the fixing device, the flexible buffering design that an arc-shaped clamp is matched with a first compression spring is adopted, the clamping force is controlled through a first electric push rod, plastic pipeline deformation caused by excessive clamping of a traditional hard clamp is avoided, and the shape integrity and the use performance of the pipeline in the cutting process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of positioning mechanisms, and in particular to a positioning mechanism for cutting plastic pipes. Background Technology

[0002] Plastic pipes, an indispensable component of modern industrial and civil building piping systems, refer to all types of pipes made of plastic. With their numerous advantages, including light weight, hygiene and safety, low flow resistance, energy and metal resource savings, improved living environment, long service life, and safety and convenience, plastic pipes are widely used in water supply and drainage, heating, chemical industry, and agricultural irrigation. During the installation of plastic pipes, cutting is often necessary due to variations in pipe length, installation location, and construction requirements. Since plastic pipes are generally quite long and need to maintain stability during cutting, precise fixing using specialized positioning devices is crucial. However, existing plastic pipe positioning devices still have some design shortcomings. Traditional positioning devices often use rigid clamps to position and fix the plastic pipes. While this method is simple to operate, improper operation or excessive clamping force can easily cause deformation of the plastic pipes, thus affecting their performance and installation quality. Furthermore, existing positioning devices often require manual operation when adjusting pipe positions, which is not only inefficient but also makes it difficult to guarantee the stability of the adjustment. Therefore, to address the problems of existing plastic pipe positioning devices, developing a positioning mechanism that can effectively fix plastic pipes and prevent their deformation, while also enabling rapid and precise adjustments, is of great significance for improving the efficiency and quality of plastic pipe cutting and processing. Utility Model Content

[0003] The purpose of this invention is to provide a positioning mechanism for cutting plastic pipes, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A positioning mechanism for cutting plastic pipes includes a table, a fixing device, and an adjusting device. The fixing device and the adjusting device are located at the front and rear ends of the table, respectively. The upper surface of the table is provided with a pipe groove. The fixing device includes an arc-shaped clamp, a moving plate, and a first electric push rod. There are two arc-shaped clamps, located on the left and right sides, respectively. The back of the arc-shaped clamp is fixed to one end of the two moving rods. The moving plate is located on the back of the arc-shaped clamp, and the other ends of the two moving rods move through the moving plate.

[0006] A first compression spring is sleeved on the moving rod. One end of the first compression spring is fixed to the back of the arc-shaped clamp, and the other end is fixed to the right end face of the moving plate.

[0007] The telescopic end of the first electric push rod is fixedly connected to the back of the movable plate, and the first electric push rod is fixedly connected to the U-shaped frame. A first guide rod is fixedly connected to the U-shaped frame below the first electric push rod, and the lower end of the movable plate is movably sleeved on the first guide rod.

[0008] The adjustment device includes a cylinder, and three feeding devices are spaced apart along the circumferential direction on the upper edge of the cylinder. Each feeding device includes a second electric push rod, a second guide rod, a movable plate, a U-shaped plate, and a rubber roller. The second electric push rod is fixed to the outer side of the cylinder and extends through the cylinder to be fixed to the movable plate. The U-shaped plate is located at the lower end of the movable plate, and its upper end face is fixed to one end of the two third guide rods. The other ends of the two third guide rods movably pass through the movable plate. A second compression spring is sleeved on the third guide rod. One end of the second compression spring is fixed to the upper end face of the U-shaped plate, and its other end is fixed to the lower end face of the movable plate.

[0009] The rubber roller is movably connected inside the U-shaped plate, with one end connected to the bearing on the inner wall of the U-shaped plate and the other end fixedly connected to the output end of the feed motor fixed to the U-shaped plate via a coupling.

[0010] There are two second guide rods, one end of which moves through the cylinder and the other end is fixed to the movable plate.

[0011] The cylinder has integrally formed ears at both ends. One ear is fixed to a threaded sleeve, which is threaded to a lead screw. The other ear is fitted onto a fourth guide rod. One end of the lead screw is connected to a frame bearing, and the other end is fixed to the output end of a drive motor via a coupling. The fourth guide rod is fixed to the frame.

[0012] The rubber rollers in the three feeding devices are all aligned with the center point of the cylinder.

[0013] The beneficial effects of this utility model are:

[0014] The fixing device employs a flexible buffer design with an arc-shaped clamp and a first compression spring. The clamping force is controlled by a first electric push rod, preventing deformation of the plastic pipe caused by excessive clamping, as is common with traditional rigid clamps. This ensures the pipe's shape integrity and performance during the cutting process. The adjustment device works in coordination with a cylinder and three feeding devices. A second electric push rod pushes the rubber roller, combined with the elastic compensation of the second compression spring, and then, in conjunction with the feed motor, drives the rubber roller to rotate, propelling the plastic pipe forward steadily. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model.

[0017] Figure 3 This is an enlarged schematic diagram of A in Figure 2 of this utility model.

[0018] Among them, 1-table body; 2-fixing device; 3-adjusting device; 4-pipe groove; 5-arc clamp; 6-moving plate; 7-first electric push rod; 8-moving rod; 9-first compression spring; 10-U-shaped frame; 11-first guide rod; 12-cylinder; 13-second electric push rod; 14-second guide rod; 15-moving plate; 16-U-shaped plate; 17-rubber roller; 18-third guide rod; 19-second compression spring; 20-feed motor; 21-ear; 22-threaded sleeve; 23-lead screw; 24-fourth guide rod; 25-frame; 26-drive motor; 27-plastic pipe. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0020] A positioning mechanism for cutting plastic pipes includes a table body 1, a fixing device 2, and an adjusting device 3. The fixing device 2 and the adjusting device 3 are located at the front and rear ends of the table body 1, respectively. The upper surface of the table body 1 is provided with a pipe groove 4. The fixing device 2 includes an arc-shaped clamp 5, a moving plate 6, and a first electric push rod 7. There are two arc-shaped clamps 5, located on the left and right sides, respectively. The back of the arc-shaped clamp 5 is fixed to one end of two moving rods 8. The moving plate 6 is located on the back of the arc-shaped clamp 5, and the other ends of the two moving rods 8 both move through the moving plate 6.

[0021] A first compression spring 9 is sleeved on the moving rod 8. One end of the first compression spring 9 is fixed to the back of the arc-shaped clamp 5, and the other end is fixed to the right end face of the moving plate 6.

[0022] The telescopic end of the first electric push rod 7 is fixedly connected to the back of the movable plate 6, and the first electric push rod 7 is fixedly connected to the U-shaped frame 10. A first guide rod 11 fixedly connected to the U-shaped frame 10 is provided below the first electric push rod 7, and the lower end of the movable plate 6 is movably sleeved on the first guide rod 11.

[0023] The adjustment device 3 includes a cylinder 12, with three feeding devices spaced apart along the circumferential direction on the upper edge of the cylinder 12. Each feeding device includes a second electric push rod 13, a second guide rod 14, a movable plate 15, a U-shaped plate 16, and a rubber roller 17. The second electric push rod 13 is fixed to the outer side of the cylinder 12 and extends through the cylinder 12 to be fixed to the movable plate 15. The U-shaped plate 16 is located at the lower end of the movable plate 15, and its upper end face is fixed to one end of two third guide rods 18. The other ends of the two third guide rods 18 movably pass through the movable plate 15. A second compression spring 19 is sleeved on the third guide rod 18. One end of the second compression spring 19 is fixed to the upper end face of the U-shaped plate 16, and its other end is fixed to the lower end face of the movable plate 15.

[0024] The rubber roller 17 is movably connected inside the U-shaped plate 16, with one end of the rubber roller 17 connected to the bearing on the inner wall of the U-shaped plate 16, and the other end fixedly connected to the output end of the feed motor 20 fixed on the U-shaped plate 16 via a coupling.

[0025] Two second guide rods 14 are provided, and one end of the second guide rod 14 moves through the cylinder 12, while the other end is fixedly connected to the movable plate 15.

[0026] The cylinder 12 has integrally formed ears 21 at both ends. One ear 21 is fixedly connected to a threaded sleeve 22, which is threadedly connected to a lead screw 23. The other ear 21 is sleeved on a fourth guide rod 24. One end of the lead screw 23 is connected to a bearing of the frame 25, and the other end is fixedly connected to the output end of the drive motor 26 through a coupling. The fourth guide rod 24 is fixedly connected to the frame.

[0027] The rubber rollers 17 in the three feeding devices are all aligned with the center point of the cylinder 12.

[0028] The embodiment of this utility model: During the cutting process of the plastic pipe 27, the fixing device 2 plays a key role. Specifically, the plastic pipe is placed in the pipe groove 4 on the upper surface of the table body 1, and the telescopic end of the first electric push rod 7 pushes the moving plate 6 to move along the first guide rod 11. Since the back of the arc-shaped clamp 5 is movably connected to the moving plate 6 through the moving rod 8, and the moving rod 8 is fitted with a first compression spring 9, one end of the first compression spring 9 is fixed to the back of the arc-shaped clamp 5, and the other end is fixed to the right end face of the moving plate 6, when the moving plate 6 moves, the pushing force of the first electric push rod 7 compresses the first compression spring 9 through the moving plate 6, so that the arc-shaped clamp 5 clamps the plastic pipe. At the same time, the buffering effect of the first compression spring 9 is used to avoid deformation of the plastic pipe due to excessive clamping, as with traditional rigid clamps, ensuring the shape integrity and performance of the pipe during the cutting process.

[0029] It should be noted that the cylinder 12 is aligned with the pipe groove 4. When the plastic pipe 27 is placed in the pipe groove 4, the center of the cylinder 12 is exactly aligned with the center of the plastic pipe. The adjusting device 3 is used to drive the plastic pipe forward for stable feeding. Three feeding devices are provided at intervals along the circumference on the cylinder 12. The telescopic end of the second electric push rod 13 pushes the movable plate 15 to move along the second guide rod 14. The upper end face of the U-shaped plate 16 is fixedly connected to one end of the two third guide rods 18. The other end of the third guide rods 18 moves through the movable plate 15, and a second compression spring 19 is sleeved on the third guide rods 18. One end of the second compression spring 19 is fixedly connected to the upper end face of the U-shaped plate 16, and the other end is fixedly connected to the lower end face of the movable plate 15. When the movable plate 15 moves, the thrust of the second electric push rod 13 compresses the second compression spring 19 through the movable plate 15, so that the rubber roller 17 on the U-shaped plate 16 is pressed tightly against the plastic pipe. Simultaneously, the output of the feed motor 20 drives the rubber rollers 17 to rotate via a coupling, and the three rubber rollers 17 in turn drive the plastic pipe forward. The three feeding devices work together to ensure stable feeding of the plastic pipe.

[0030] To accommodate the cutting requirements of plastic pipes 27 of different lengths, the position of the adjusting device 3 needs to be adjusted to the tail position of the plastic pipe 27 to be cut. The cylinder 12 has integrally formed ears 21 at both ends. One ear 21 is fixedly connected to a threaded sleeve 22, which is threadedly connected to a lead screw 23. The other ear 21 is fitted onto the fourth guide rod 24. The drive motor 26 drives the lead screw 23 to rotate. Because the threaded sleeve 22 is threadedly connected to the lead screw 23, and the other ear 21 is fitted onto the fourth guide rod 24, the cylinder 12 moves axially along the lead screw 23, thereby adjusting the position of the adjusting device 3.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning mechanism for cutting plastic pipes, characterized in that, The device includes a table body, a fixing device, and an adjusting device. The fixing device and the adjusting device are located at the front and rear ends of the table body, respectively. The upper surface of the table body is provided with a pipe groove. The fixing device includes an arc-shaped clamp, a moving plate, and a first electric push rod. There are two arc-shaped clamps, located on the left and right sides, respectively. The back of the arc-shaped clamp is fixed to one end of the two moving rods. The moving plate is located on the back of the arc-shaped clamp, and the other ends of the two moving rods move through the moving plate.

2. The positioning mechanism for cutting plastic pipes according to claim 1, characterized in that, A first compression spring is sleeved on the moving rod. One end of the first compression spring is fixed to the back of the arc-shaped clamp, and the other end is fixed to the right end face of the moving plate.

3. The positioning mechanism for cutting plastic pipes according to claim 1, characterized in that, The telescopic end of the first electric push rod is fixedly connected to the back of the movable plate, and the first electric push rod is fixedly connected to the U-shaped frame. A first guide rod is fixedly connected to the U-shaped frame below the first electric push rod, and the lower end of the movable plate is movably sleeved on the first guide rod.

4. The positioning mechanism for cutting plastic pipes according to claim 1, characterized in that, The adjustment device includes a cylinder, and three feeding devices are spaced apart along the circumferential direction on the upper edge of the cylinder. Each feeding device includes a second electric push rod, a second guide rod, a movable plate, a U-shaped plate, and a rubber roller. The second electric push rod is fixed to the outer side of the cylinder and extends through the cylinder to be fixed to the movable plate. The U-shaped plate is located at the lower end of the movable plate, and its upper end face is fixed to one end of the two third guide rods. The other ends of the two third guide rods movably pass through the movable plate. A second compression spring is sleeved on the third guide rod. One end of the second compression spring is fixed to the upper end face of the U-shaped plate, and its other end is fixed to the lower end face of the movable plate.

5. A positioning mechanism for cutting plastic pipes according to claim 4, characterized in that, The rubber roller is movably connected inside the U-shaped plate, with one end connected to the bearing on the inner wall of the U-shaped plate and the other end fixedly connected to the output end of the feed motor fixed to the U-shaped plate via a coupling.

6. A positioning mechanism for cutting plastic pipes according to claim 4, characterized in that, There are two second guide rods, one end of which moves through the cylinder and the other end is fixed to the movable plate.

7. A positioning mechanism for cutting plastic pipes according to claim 4, characterized in that, The cylinder has integrally formed ears at both ends. One ear is fixed to a threaded sleeve, which is threaded to a lead screw. The other ear is fitted onto a fourth guide rod. One end of the lead screw is connected to a frame bearing, and the other end is fixed to the output end of a drive motor via a coupling. The fourth guide rod is fixed to the frame.

8. A positioning mechanism for cutting plastic pipes according to claim 4, characterized in that, The rubber rollers in the three feeding devices are all aligned with the center point of the cylinder.

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