PE pipe section cutting and fixing device

Abstract

The utility model relates to related technical field of PE pipe production equipment, concretely to a kind of PE pipe section cutting fixing device, it include: machine case;The top of the machine case is provided with pipe body, the bottom of the pipe body both sides is uniformly provided with transmission roller, the centre of the transmission roller is fixedly connected with first rotation axis. The utility model can control PE pipe to rotate at uniform speed while cutting PE pipe by the cooperation of machine case, pipe body, transmission roller, first rotation axis, fixed block, portal frame, transmission mechanism and cutting mechanism, so that PE pipe material is uniformly stressed, unilateral stress concentration is avoided, burr, crack or deformation is reduced, the existing PE pipe section cutting fixing device can be fixed and cut PE pipe, but PE pipe cannot be controlled to rotate while cutting, leading to uneven stress of PE pipe, unilateral stress concentration, leading to not only more burr at PE pipe cutting place, but also prone to crack or deformation.

Description

Technical Field

[0001] This utility model relates to the technical field of PE pipe production equipment, specifically a PE pipe cross-section cutting and fixing device. Background Technology

[0002] PE is polyethylene plastic, the most basic type of plastic. Plastic bags, cling film, etc., are all made of PE. HDPE is a highly crystalline, non-polar thermoplastic resin. PE pipes come in medium-density polyethylene (MDPE) and high-density polyethylene (HDPE) varieties. They are suitable for transporting gaseous manufactured gas, natural gas, and liquefied petroleum gas. Compared to steel pipes, the construction process is simpler, they have a certain degree of flexibility, and most importantly, they do not require anti-corrosion treatment, saving a significant number of steps. Because PE pipes are produced continuously, they need to be cut to facilitate storage and transportation.

[0003] Utility model patent CN213946628U discloses a PE pipe cutting device, belonging to the technical field of PE pipe production equipment. It addresses the problems of existing technologies, such as difficulty in achieving complete, offset-free clamping of large-diameter PE pipes, poor clamping effect, low clamping efficiency, and the reliance on manual operation of cutting machines resulting in low cutting precision and rough cut surfaces. The device includes a cutting device body, a cutting device shell mounted on its outer surface, a reduction motor fixedly mounted on the top of the shell, a drive shaft fixedly mounted on the output end of the motor, a gear set fixedly mounted on one end of the drive shaft, a fixing plate fixedly mounted on the top of the shell, a horizontal shaft mounted on one side of the fixing plate, a cutting machine sleeved on the outer surface of the horizontal shaft, an electric telescopic rod fixedly mounted on one side of the top of the shell, a rotating plate at the output end of the electric telescopic rod, a fixing device at one end of the rotating plate, and a fixing cover plate fixedly mounted on one side of the fixing device. This utility model offers the advantages of rapid and uniform cutting of PE pipes, increased cutting precision, increased stability, improved cut surface smoothness, rapid fixing of PE pipes, and improved cutting efficiency.

[0004] However, the above patent still has shortcomings: although the patent can fix and cut PE pipes, it cannot control the rotation of the PE pipe while cutting, resulting in uneven stress on the PE pipe and stress concentration on one side. This causes the cut part of the PE pipe to not only have more burrs, but is also prone to cracks or deformation. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a PE pipe section cutting and fixing device to solve the problem that although the existing PE pipe section cutting and fixing device mentioned in the background art can fix and cut PE pipes, it cannot control the rotation of the PE pipe while cutting, resulting in uneven stress on the PE pipe and stress concentration on one side. This leads to the problem that the cut PE pipe not only has many burrs, but is also prone to cracks or deformation.

[0006] The technical solution of this utility model is:

[0007] A PE pipe section cutting and fixing device includes: a chassis; a pipe body is disposed on the top of the chassis, and transmission rollers are disposed on both sides of the bottom of the pipe body. A first rotating shaft is fixedly connected to the center of each transmission roller, and a fixing block is rotatably connected to both ends of the first rotating shaft. The fixing blocks are fixedly connected to the chassis. A gantry frame is fixedly connected to the center of the top of the chassis. A transmission mechanism for controlling the uniform rotation of the pipe body is disposed inside the chassis. A cutting mechanism for limiting the movement of the pipe body is disposed inside the gantry frame.

[0008] Preferably, the transmission mechanism includes: a motor frame fixedly connected inside the housing; two second rotating shafts rotatably connected inside the motor frame; the ends of the two second rotating shafts away from the motor frame are rotatably connected to the housing; a first synchronous pulley is fixedly connected to the outer surface of each of the two second rotating shafts; the two first synchronous pulleys are connected to each other by a first synchronous belt; a second synchronous pulley is provided on the side of each of the two first synchronous pulleys near the housing; the two second synchronous pulleys are respectively fixed to the outer surface of the second rotating shafts; a third synchronous pulley is connected to each of the second synchronous pulleys by a second synchronous belt; and the two third synchronous pulleys are respectively fixedly connected to the first rotating shafts; a first motor is fixedly connected to one side of the motor frame; one of the second rotating shafts is fixedly connected to the output end of the first motor; and a matching through hole is provided in the housing near the second synchronous pulley.

[0009] Preferably, the cutting mechanism includes: a lifting plate is provided inside the gantry frame; a fixed frame is fixedly connected to the bottom center of the lifting plate; a cutting blade is provided at the bottom of the fixed frame; a third rotating shaft is fixedly connected to the center of the cutting blade; one end of the third rotating shaft is rotatably connected to the fixed frame; the other end of the third rotating shaft passes through the fixed frame and extends to a second motor; the second motor is fixedly connected to the fixed frame; and the third rotating shaft is fixedly connected to the output end of the second motor. Two hydraulic cylinders are fixedly connected to the top of the gantry frame; the telescopic ends of the hydraulic cylinders pass through the gantry frame and extend to the lifting plate; and the lifting plate is fixedly connected to the telescopic ends of the hydraulic cylinders.

[0010] Preferably, an extrusion plate is slidably connected to the outer surface of the fixing frame, and extrusion wheels are provided on both sides of the bottom of the extrusion plate. A fourth rotating shaft is fixedly connected to the center of each extrusion wheel, and connecting blocks are rotatably connected to the outer surfaces of both ends of the fourth rotating shaft. The connecting blocks are fixedly connected to the extrusion plate.

[0011] Preferably, a sliding rod is fixedly connected to both sides of the top of the extrusion plate. The top of the sliding rod passes through the lifting plate and extends to the limiting plate. The two limiting plates are fixedly connected to the sliding rods respectively. The sliding rods are slidably connected to the lifting plate. Two springs are provided between the extrusion plate and the lifting plate. The two springs are respectively sleeved on the outer surface of the sliding rod.

[0012] Preferably, each of the four bottom corners of the chassis is fixedly connected with a universal wheel with a braking function.

[0013] Preferably, a control box with an internal touch screen is provided on one side of the bottom of the gantry frame, and the control box is fixedly connected to the chassis.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Firstly, this utility model, through the coordinated action of the chassis, pipe body, transmission roller, first rotating shaft, fixing block, gantry frame, transmission mechanism, and cutting mechanism, can control the PE pipe to rotate at a uniform speed while cutting the PE pipe, so that the PE pipe is evenly stressed, avoiding stress concentration on one side, and reducing burrs, cracks, or deformation. It solves the problem that although the existing PE pipe section cutting and fixing device can fix and cut the PE pipe, it cannot control the rotation of the PE pipe while cutting, resulting in uneven stress on the PE pipe, stress concentration on one side, and causing not only many burrs at the cut point, but also easy cracks or deformation.

[0016] Secondly, through the combined action of the chassis, pipe body, transmission roller, first rotating shaft, fixed block, gantry frame, transmission mechanism and cutting mechanism, this utility model can cut PE pipes of different diameters and lengths, thereby significantly expanding the applicability of the device in PE pipe cutting and improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a PE pipe cross-section cutting and fixing device according to the present invention;

[0018] Figure 2 This is a side sectional view of the present invention.

[0019] Figure 3 For the present utility model Figure 2Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the transmission mechanism structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the cutting mechanism structure of this utility model.

[0022] In the picture:

[0023] 1. Chassis; 2. Pipe body; 3. Drive roller; 4. First rotating shaft; 5. Fixing block; 6. Gantry frame; 7. Transmission mechanism; 8. Cutting mechanism; 9. Motor frame; 10. Second rotating shaft; 11. First synchronous pulley; 12. First synchronous belt; 13. Second synchronous pulley; 14. Second synchronous belt; 15. Third synchronous pulley; 16. First motor; 17. Through hole; 18. Lifting plate; 19. Fixing frame; 20. Cutting blade; 21. Third rotating shaft; 22. Second motor; 23. Hydraulic cylinder; 24. Extrusion plate; 25. Extrusion wheel; 26. Fourth rotating shaft; 27. Connecting block; 28. Slide rod; 29. ​​Limiting plate; 30. Spring; 31. Caster wheel; 32. Control box. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 5 The present invention will describe the above technical solution in detail through the following embodiments:

[0026] A PE pipe section cutting and fixing device includes: a housing 1; a pipe body 2 is provided on the top of the housing 1, and transmission rollers 3 are provided on both sides of the bottom of the pipe body 2. A first rotating shaft 4 is fixedly connected to the center of each transmission roller 3, and a fixing block 5 is rotatably connected to both ends of the first rotating shaft 4. The fixing blocks 5 are fixedly connected to the housing 1, and a gantry frame 6 is fixedly connected to the center of the top of the housing 1; a transmission mechanism 7 is provided inside the housing 1 to control the pipe body 2 to rotate at a uniform speed; a cutting mechanism 8 is provided inside the gantry frame 6 to limit the pipe body 2. The user places the pipe body 2 between the two transmission rollers 3, and controls the two first rotating shafts 4 to rotate through the transmission mechanism 7. While the first rotating shafts 4 rotate, they drive the transmission rollers 3, which drive the pipe body 2 to rotate at a uniform speed. While rotating at a uniform speed, the pipe body 2 is limited and cut by the cutting mechanism 8.

[0027] like Figure 4 As shown, the transmission mechanism 7 includes: a motor frame 9 fixedly connected inside the housing 1; two second rotating shafts 10 rotatably connected inside the motor frame 9; the ends of the two second rotating shafts 10 away from the motor frame 9 are rotatably connected to the housing 1; first synchronous pulleys 11 are fixedly connected to the outer surfaces of the two second rotating shafts 10; the two first synchronous pulleys 11 are connected by a first synchronous belt 12; a second synchronous pulley 13 is provided on the side of the two first synchronous pulleys 11 near the housing 1; the two second synchronous pulleys 13 are respectively fixed to the outer surfaces of the second rotating shafts 10; each second synchronous pulley 13 is connected to a third synchronous pulley 15 via a second synchronous belt 14; the two third synchronous pulleys 15 are respectively fixedly connected to the first rotating shaft 4; and a motor frame 9 is fixedly connected to one side of the motor frame 9. There is a first motor 16, in which a second rotating shaft 10 is fixedly connected to the output end of the first motor 16. The housing 1 has a matching through hole 17 near the second synchronous pulley 13. When the first motor 16 is started, the output end of the first motor 16 drives one of the second rotating shafts 10. While the second rotating shaft 10 rotates, it drives another second rotating shaft 10 through the cooperation of the first synchronous pulley 11 and the first synchronous belt 12. The two second rotating shafts 10 rotate while driving the second synchronous pulley 13. The two second synchronous pulleys 13 drive the third synchronous pulley 15 through the second synchronous belt 14. The two third synchronous pulleys 15 drive the first rotating shaft 4. The two first rotating shafts 4 drive the transmission rollers 3. The two transmission rollers 3 cooperate to drive the pipe body 2 to rotate at a uniform speed.

[0028] like Figure 3 and Figure 5 As shown, the cutting mechanism 8 includes: a lifting plate 18 is provided inside the gantry frame 6; a fixed frame 19 is fixedly connected to the bottom center of the lifting plate 18; a cutting blade 20 is provided at the bottom of the fixed frame 19; a third rotating shaft 21 is fixedly connected to the center of the cutting blade 20; one end of the third rotating shaft 21 is rotatably connected to the fixed frame 19; the other end of the third rotating shaft 21 passes through the fixed frame 19 and extends to the second motor 22; the second motor 22 is fixedly connected to the fixed frame 19; and the third rotating shaft 21 is fixedly connected to the output end of the second motor 22; a number of... There are two hydraulic cylinders 23. The telescopic ends of the hydraulic cylinders 23 pass through the gantry frame 6 and extend to the lifting plate 18. The lifting plate 18 is fixedly connected to the telescopic ends of the hydraulic cylinders 23. The second motor 22 is started. The output end of the second motor 22 drives the third rotating shaft 21. The third rotating shaft 21 rotates and drives the cutting blade 20. The cutting blade 20 rotates and starts the hydraulic cylinders 23. The telescopic ends of the hydraulic cylinders 23 extend outward and push the lifting plate 18 to move downward. The lifting plate 18 moves downward and drives the fixed frame 19. The fixed frame 19 drives the cutting blade 20 through the third rotating shaft 21.

[0029] like Figure 5As shown, a pressing plate 24 is slidably connected to the outer surface of the fixed frame 19. A pressing wheel 25 is provided on both sides of the bottom of the pressing plate 24. A fourth rotating shaft 26 is fixedly connected to the center of the pressing wheel 25. A connecting block 27 is rotatably connected to the outer surface of both ends of the fourth rotating shaft 26. The connecting block 27 is fixedly connected to the pressing plate 24. When the lifting plate 18 moves downward, it also drives the pressing plate 24. The pressing plate 24 drives the fourth rotating shaft 26 and the pressing wheel 25 through the connecting block 27, so that the pressing wheel 25 first applies pressure to the pipe body 2, and then limits the pipe body 2 without affecting its rotation.

[0030] like Figure 5 As shown, slide rods 28 are fixedly connected to both sides of the top of the extrusion plate 24. The top of each slide rod 28 passes through the lifting plate 18 and extends to the limiting plate 29. The two limiting plates 29 are fixedly connected to the slide rods 28 respectively. The slide rods 28 are slidably connected to the lifting plate 18. Two springs 30 are provided between the extrusion plate 24 and the lifting plate 18. The two springs 30 are respectively sleeved on the outer surface of the slide rod 28. When the extrusion wheel 25 contacts the pipe body 2, the lifting plate 18 continues to move downward, which reduces the distance between the lifting plate 18 and the limiting plate 29, thereby extruding the springs 30. While the springs 30 are being extruded, they apply downward pressure to the extrusion plate 24, thereby causing the extrusion plate 24 to apply pressure to the pipe body 2 through the cooperation of the connecting block 27 and the extrusion wheel 25.

[0031] like Figure 1 As shown, each of the four corners of the bottom of the chassis 1 is fixedly connected with a universal wheel 31 with a braking function, which makes it convenient for users to move and fix the device.

[0032] like Figure 1 As shown, a control box 32 with an internal touch screen is provided on one side of the bottom of the gantry frame 6. The control box 32 is fixedly connected to the chassis 1, making it convenient for users to operate the device.

[0033] Working principle: The user places the pipe body 2 between two transmission rollers 3 and starts the first motor 16. The output of the first motor 16 drives one of the second rotating shafts 10. While rotating, the second rotating shaft 10 drives the other second rotating shaft 10 through the cooperation of the first synchronous pulley 11 and the first synchronous belt 12. The rotation of the two second rotating shafts 10 drives the second synchronous pulley 13. The two second synchronous pulleys 13 drive the third synchronous pulley 15 through the second synchronous belt 14. The two third synchronous pulleys 15 drive the first rotating shaft 4. The two first rotating shafts 4 drive the transmission rollers 3. The two transmission rollers 3 work together to make the pipe body 2 rotate at a constant speed. Then, the second motor 22 and the hydraulic cylinder 23 are started. The output of the second motor 22 drives the third rotating shaft 21. While rotating, the third rotating shaft 21 drives the cutting blade 20 to rotate. While rotating, the telescopic end of the hydraulic cylinder 23 extends outward to push the lifting plate 18 downward. As the lifting plate 18 moves downward, it drives the fixed frame 19. The fixed frame 19 drives the cutting blade 20 through the third rotating shaft 21. At the same time, the lifting plate 18 also drives the extrusion plate 24. The extrusion plate 24 drives the fourth rotating shaft 26 and the extrusion wheel 25 through the connecting block 27. When the extrusion wheel 25 contacts the pipe body 2, the lifting plate 18 continues to move downward, reducing the distance between the lifting plate 18 and the limiting plate 29, thereby extruding the spring 30. While the spring 30 is being extruded, it applies downward pressure to the extrusion plate 24. As a result, the extrusion plate 24 applies pressure to the pipe body 2 through the cooperation of the connecting block 27 and the extrusion wheel 25. The extrusion wheel 25 first applies pressure to the pipe body 2, and then the cutting blade 20 contacts the pipe body 2 to cut the pipe body.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A PE pipe cross-section cutting and fixing device, comprising: Chassis (1); The features are as follows: a pipe body (2) is provided on the top of the chassis (1), and transmission rollers (3) are provided on both sides of the bottom of the pipe body (2). A first rotating shaft (4) is fixedly connected to the center of each transmission roller (3). Fixed blocks (5) are rotatably connected to both ends of the first rotating shaft (4). The fixed blocks (5) are fixedly connected to the chassis (1). A gantry frame (6) is fixedly connected to the center of the top of the chassis (1). The chassis (1) is equipped with a transmission mechanism (7) that controls the pipe body (2) to rotate at a constant speed. The gantry frame (6) is equipped with a cutting mechanism (8) that limits the movement of the pipe body (2).

2. The PE pipe section cutting and fixing device as described in claim 1, characterized in that: The transmission mechanism (7) includes: A motor frame (9) is fixedly connected inside the chassis (1). Two second rotating shafts (10) are rotatably connected inside the motor frame (9). The ends of the two second rotating shafts (10) away from the motor frame (9) are rotatably connected to the chassis (1). A first synchronous pulley (11) is fixedly connected to the outer surface of the two second rotating shafts (10). The two first synchronous pulleys (11) are connected by a first synchronous belt (12). A second synchronous pulley (13) is provided on the side of the two first synchronous pulleys (11) close to the chassis (1). The two second synchronous pulleys (13) are respectively fixed to the outer surface of the second rotating shafts (10). The second synchronous pulleys (13) are each connected to a third synchronous pulley (15) through a second synchronous belt (14). The two third synchronous pulleys (15) are respectively fixedly connected to the first rotating shaft (4). A first motor (16) is fixedly connected to one side of the motor frame (9), wherein a second rotating shaft (10) is fixedly connected to the output end of the first motor (16), and a matching through hole (17) is provided on the housing (1) near the second synchronous pulley (13).

3. The PE pipe section cutting and fixing device as described in claim 1, characterized in that: The cutting mechanism (8) includes: The gantry frame (6) is equipped with a lifting plate (18) inside. A fixed frame (19) is fixedly connected to the bottom center of the lifting plate (18). A cutting blade (20) is provided at the bottom of the fixed frame (19). A third rotating shaft (21) is fixedly connected to the center of the cutting blade (20). One end of the third rotating shaft (21) is rotatably connected to the fixed frame (19). The other end of the third rotating shaft (21) passes through the fixed frame (19) and extends to the second motor (22). The second motor (22) is fixedly connected to the fixed frame (19). The third rotating shaft (21) is fixedly connected to the output end of the second motor (22). Two hydraulic cylinders (23) are fixedly connected to the top of the gantry (6). The telescopic ends of the hydraulic cylinders (23) pass through the gantry (6) and extend to the lifting plate (18). The lifting plate (18) is fixedly connected to the telescopic ends of the hydraulic cylinders (23).

4. The PE pipe section cutting and fixing device as described in claim 3, characterized in that: The outer surface of the fixed frame (19) is slidably connected to an extrusion plate (24). Extrusion wheels (25) are provided on both sides of the bottom of the extrusion plate (24). A fourth rotating shaft (26) is fixedly connected to the center of each extrusion wheel (25). Connecting blocks (27) are rotatably connected to the outer surfaces of both ends of the fourth rotating shaft (26). The connecting blocks (27) are fixedly connected to the extrusion plate (24).

5. The PE pipe section cutting and fixing device as described in claim 4, characterized in that: Both sides of the top of the extrusion plate (24) are fixedly connected to slide rods (28). The top of each slide rod (28) passes through the lifting plate (18) and extends to the limiting plate (29). The two limiting plates (29) are fixedly connected to the slide rods (28) respectively. The slide rods (28) are slidably connected to the lifting plate (18). Two springs (30) are provided between the extrusion plate (24) and the lifting plate (18). The two springs (30) are respectively sleeved on the outer surface of the slide rods (28).

6. The PE pipe section cutting and fixing device as described in claim 1, characterized in that: The bottom four corners of the chassis (1) are all fixedly connected with universal wheels (31) with braking function.

7. The PE pipe section cutting and fixing device as described in claim 1, characterized in that: The bottom side of the gantry (6) is provided with a control box (32) with an internal touch screen, and the control box (32) is fixedly connected to the chassis (1).

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