Automatic production equipment for plastic-coated composite steel pipe
By introducing straightening components and a servo motor drive system into the plastic-coated composite steel pipe production equipment, the problem of deformation after steel pipe cutting was solved, stable connection of the steel pipe ends was achieved, and the connection quality was improved.
Patent Information
- Application Number
- CN202522240489.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-23
AI Technical Summary
Existing plastic-coated composite steel pipes are prone to end deformation due to extrusion pressure after cutting, resulting in incomplete connection and affecting the connection effect.
The corrective components include a combination structure of a first gear, a rotating roller, a support rod, and a frustum. The gear is driven to rotate by a servo motor, and in conjunction with a push plate and a spring system, the steel pipe is corrected and stably extruded, ensuring that the rotating roller fits snugly against the inner wall of the steel pipe.
It effectively corrects steel pipe deformation, ensures stable end-to-end connections, and improves the connection quality of plastic-coated composite steel pipes.
Smart Images
Figure CN224926783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to an automatic production equipment for plastic-coated composite steel pipes. Background Technology
[0002] Plastic-coated composite steel pipe is a steel-plastic composite steel pipe with a steel pipe as the base material and a plastic anti-corrosion layer fused to the inner surface of the steel pipe or the inner and outer surfaces through spraying, rolling, dipping, or suction processes. It has excellent corrosion resistance and low frictional resistance and is widely used in the transportation of media such as water supply and drainage, seawater, warm water, oil, and gas. Plastic-coated composite steel pipes usually require welded flanges at both ends for connecting pipeline systems or equipment.
[0003] In existing technologies, after cutting plastic-coated composite steel pipes, the ends of the pipes are easily deformed due to the extrusion pressure during the cutting process, which can lead to incomplete connection between the pipes and cause adverse effects. Utility Model Content
[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: In the prior art, after the plastic-coated composite steel pipe is cut, the end of the steel pipe is easily deformed due to the extrusion pressure during the cutting process, which leads to the steel pipe not being able to be fully connected and causing adverse effects. Therefore, an automatic production equipment for plastic-coated composite steel pipe is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic production equipment for plastic-coated composite steel pipes includes a base and crossbars, with two crossbars fixedly connected to one side of the base. A mounting plate is slidably connected between the two crossbars. A straightening component is mounted on the mounting plate. The straightening component includes a first gear, a rotating roller, a support rod, and a frustum. The first gear is rotatably connected to the mounting plate and has multiple through slots. One end of each of the multiple rotating rollers is slidably connected to one of the through slots. One end of the support rod is fixedly connected to the first gear. The frustum is slidably connected to the support rod. A limiting plate is slidably connected to the mounting plate, and the end of the limiting plate away from the mounting plate is fixedly connected to the frustum.
[0006] Preferably, a second gear is rotatably connected to the mounting plate, and the second gear meshes with the first gear.
[0007] Preferably, square boxes are fixedly connected to both sides of the base, a movable plate is slidably connected to the upper wall of the square box, a push plate is slidably connected inside the square box, and a spring is fixedly connected between the push plate and the movable plate.
[0008] Preferably, a sealing box is fixedly connected to the mounting plate, a connecting pipe is fixedly connected between the sealing box and the square box, a piston plate is fixedly connected to the limiting plate, and the end of the piston plate away from the limiting plate is slidably connected inside the sealing box.
[0009] Preferably, a pull rope is fixedly connected between the two movable plates.
[0010] Preferably, the base is provided with a steel pipe, which is disposed between the pull rope and the base.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. Push multiple rotating rollers away from each other until the rollers are in contact with the inner wall of the steel pipe. Drive an external servo motor to drive the second gear to rotate. The second gear can drive the first gear to rotate. As the multiple rotating rollers rotate with the first gear, they can rotate in the steel pipe, thereby achieving the effect of straightening the steel pipe.
[0012] 2. The push plate moves down inside the square box. The push plate pulls the pull rope down through the spring and the moving plate until the pull rope is in close contact with the steel pipe, thereby squeezing the steel pipe onto the base to facilitate the stability of the subsequent straightening of the steel pipe by the rotating roller. Attached Figure Description
[0013] Figure 1 This is a front structural diagram of an automated production equipment for plastic-coated composite steel pipes proposed in this utility model; Figure 2 for Figure 1 A magnified schematic diagram of the structure of part A in the diagram; Figure 3 This is a schematic diagram of the internal structure of a square box in an automated production equipment for plastic-coated composite steel pipes proposed in this utility model. Figure 4 This is a schematic diagram of the base structure of an automatic production equipment for plastic-coated composite steel pipes proposed in this utility model.
[0014] In the diagram: 1. Base, 2. Movable plate, 3. Square box, 4. Connecting pipe, 5. Crossbar, 6. Mounting plate, 7. Support rod, 8. Frustum, 9. First gear, 10. Second gear, 11. Rotary roller, 12. Pull rope, 13. Sealing box, 14. Piston plate, 15. Limiting plate, 16. Spring, 17. Push plate. Detailed Implementation
[0015] 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.
[0016] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0017] Reference Figure 1 An automatic production equipment for plastic-coated composite steel pipes includes a base 1 and crossbars 5, with both crossbars 5 fixedly connected to one side of the base 1.
[0018] Reference Figures 1-4 A mounting plate 6 is slidably connected between two crossbars 5. A straightening component is mounted on the mounting plate 6, including a first gear 9, a rotating roller 11, a support rod 7, and a frustum 8. The first gear 9 is rotatably connected to the mounting plate 6 and has multiple through slots (three in total). One end of each of the multiple rotating rollers 11 is slidably connected to a through slot. The rotating rollers 11 are in the through slots and can make circular motions as the first gear 9 rotates, thereby straightening the steel pipe. The rotating rollers 11 can only move and cannot rotate within the through slots. One end of the support rod 7 is fixedly connected to the first gear 9, and the frustum 8 is slidably connected to the support rod 7. One side of the outer surface of the frustum 8 is flat, and the other end is inclined. When the frustum 8 moves, it can push the multiple support rods 7 away from each other. A limiting plate 15 is slidably connected to the mounting plate 6. The end of the limiting plate 15 away from the mounting plate 6 is fixedly connected to the frustum 8. A second gear 10 is rotatably connected to the mounting plate 6 and meshes with the first gear 9.
[0019] Reference Figure 3 A square box 3 is fixedly connected to both sides of the base 1. The bottom of the square box 3 is not sealed, so when the push plate 17 moves down, it can expel the gas from the bottom wall of the square box 3. A movable plate 2 is slidably connected to the upper wall of the square box 3. The push plate 17 is slidably connected inside the square box 3. A spring 16 is fixedly connected between the push plate 17 and the movable plate 2. A pull rope 12 is fixedly connected between the two movable plates 2. A steel pipe is provided on the base 1. The steel pipe is located between the pull rope 12 and the base 1. The push plate 17 can pull the movable plate 2 down through the spring 16. Therefore, after the pull rope 12 contacts the outer surface of the steel pipe, the spring 16 can be stretched as the push plate 17 continues to move down. A sealing box 13 is fixedly connected to the mounting plate 6. A connecting pipe 4 is fixedly connected between the sealing box 13 and the square box 3. A piston plate 14 is fixedly connected to the limiting plate 15. The end of the piston plate 14 away from the limiting plate 15 is slidably connected inside the sealing box 13.
[0020] In this utility model, when in use, as shown in the attached... Figure 1As shown, the steel pipe is first placed on the base 1 and under the pull rope 12. Then, the mounting plate 6 is pushed to move in the direction of the base 1 until the rotating roller 11 located on the side of the mounting plate 6 away from the first gear 9 is pushed into the steel pipe. Then, the limiting plate 15 can drive the truncated cone 8 to move in the direction of the first gear 9 and push the multiple rotating rollers 11 away from each other until the rotating rollers 11 are in contact with the inner wall of the steel pipe. The external servo motor drives the second gear 10 to rotate. The second gear 10 can drive the first gear 9 to rotate. When the multiple rotating rollers 11 rotate with the first gear 9, they can rotate in the steel pipe, thereby achieving the effect of straightening the steel pipe.
[0021] When the limiting plate 15 moves toward the mounting plate 6, it can push the piston plate 14 to squeeze the gas in the square box 3 through the connecting pipe 4 into the square box 3, and push the push plate 17 to move down in the square box 3. The push plate 17 pulls the pull rope 12 down through the spring 16 and the moving plate 2 until the pull rope 12 is in close contact with the steel pipe, thereby squeezing the steel pipe onto the base 1, so as to facilitate the stability of the subsequent straightening of the steel pipe by the rotating roller 11.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0023] 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 automatic production equipment for plastic-coated composite steel pipes, comprising a base (1) and a crossbar (5), characterized in that, Both of the crossbars (5) are fixedly connected to one side of the base (1); A mounting plate (6) is slidably connected between the two crossbars (5). A straightening component is mounted on the mounting plate (6). The straightening component includes a first gear (9), a rotating roller (11), a support rod (7), and a frustum (8). The first gear (9) is rotatably connected to the mounting plate (6). Multiple through slots are provided on the first gear (9). One end of each of the multiple rotating rollers (11) is slidably connected in the through slot. One end of the support rod (7) is fixedly connected to the first gear (9). The frustum (8) is slidably connected to the support rod (7). A limiting plate (15) is slidably connected to the mounting plate (6). The end of the limiting plate (15) away from the mounting plate (6) is fixedly connected to the frustum (8).
2. The automatic production equipment for plastic-coated composite steel pipes according to claim 1, characterized in that, A second gear (10) is rotatably connected to the mounting plate (6), and the second gear (10) meshes with the first gear (9).
3. The automatic production equipment for plastic-coated composite steel pipes according to claim 1, characterized in that, A square box (3) is fixedly connected to both sides of the base (1). A movable plate (2) is slidably connected to the upper wall of the square box (3). A push plate (17) is slidably connected inside the square box (3). A spring (16) is fixedly connected between the push plate (17) and the movable plate (2).
4. The automatic production equipment for plastic-coated composite steel pipes according to claim 3, characterized in that, A sealing box (13) is fixedly connected to the mounting plate (6), and a connecting pipe (4) is fixedly connected between the sealing box (13) and the square box (3). A piston plate (14) is fixedly connected to the limiting plate (15), and one end of the piston plate (14) away from the limiting plate (15) is slidably connected inside the sealing box (13).
5. The automatic production equipment for plastic-coated composite steel pipes according to claim 3, characterized in that, A pull rope (12) is fixedly connected between the two movable plates (2).
6. The automatic production equipment for plastic-coated composite steel pipes according to claim 5, characterized in that, The base (1) is provided with a steel pipe, which is located between the pull rope (12) and the base (1).