A cooling and cutting device for biaxially oriented rigid polyvinyl chloride pipes

Abstract

This utility model relates to the field of polyvinyl chloride (PVC) pipe cutting technology, and discloses a cooling and cutting device for biaxially oriented rigid PVC pipes. The device includes a base, with two vertical plates fixedly connected to the upper surface of the base. A lifting plate is slidably connected between the two vertical plates. A protective box is fixedly connected to the upper surface of the lifting plate. Both sides of the protective box have openings. Through the cooperation of a bidirectional threaded rod, a transmission threaded rod, a first connecting plate, and a second connecting plate, during non-circumferential cutting, the arc-shaped clamping plate stabilizes the pipe with symmetrical clamping force, effectively counteracting the radial force generated by the tool feed during cutting, preventing pipe offset or vibration, and preventing defects such as cracking and wrinkling caused by uneven force, thus ensuring the structural integrity of the pipe. During circumferential cutting, the guide wheel rotates at a uniform speed in line contact with the pipe, forming a uniform circumferential cutting trajectory.

Description

Technical Field

[0001] This utility model relates to the field of polyvinyl chloride (PVC) pipe cutting technology, specifically a cooling and cutting device for biaxially oriented rigid PVC pipes. Background Technology

[0002] Axially oriented rigid PVC pipes have been widely used in many fields such as water supply and drainage systems, municipal engineering pipelines, and chemical transmission pipelines due to their excellent circumferential strength, corrosion resistance, and good processing performance.

[0003] In the prior art, CN219152997U discloses a cooling and cutting device for biaxially oriented rigid PVC pipes. While this prior art can adjust the downward movement height according to the thickness of the PVC pipe to accommodate cutting needs of pipes of different thicknesses, and can also rotate the PVC pipe to complete circumferential cutting, in actual use, when non-circumferential cutting is required, such as when the pipe is used to connect with a flat flange, square interface, or irregularly shaped connector, it is sufficient to simply cut the pipe to a flat end face perpendicular to the axis. This does not meet the requirements for... The above-mentioned methods mainly rely on pressure plates and guide wheels to clamp and fix the pipes, providing simple positioning. However, the mechanism that only drives the pipe to rotate cannot guarantee the stability of the pipe during cutting. This makes the pipe susceptible to displacement or shaking due to the cutting force, resulting in an uneven cut end face, seriously affecting the cutting accuracy, and even causing the pipe to be scrapped. In addition, it is not convenient to adjust the fixing method according to the actual cutting needs, which has certain limitations. In view of this, we propose a cooling cutting device for biaxially oriented rigid PVC pipes to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a cooling and cutting device for biaxially oriented rigid polyvinyl chloride pipes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling and cutting device for biaxially oriented rigid polyvinyl chloride (PVC) pipes, comprising a base, two vertical plates fixedly connected to the upper surface of the base, a lifting plate slidably connected between the two vertical plates, a protective box fixedly connected to the upper surface of the lifting plate, openings on both sides of the protective box, a rotating mechanism on both sides of the protective box, a first driving mechanism on the surface of the rotating mechanism, two arc-shaped clamping plates on both sides of the protective box, four fixing plates fixedly connected to the upper surface of the lifting plate, the four fixing plates being located on both sides of the protective box, a first guide groove and a second guide groove being opened on the adjacent surface of two fixing plates on one side, two first connecting plates slidably connected inside the first guide groove, the first connecting plate and the arc-shaped clamping plate being fixedly connected, a second connecting plate slidably connected inside the second guide groove, the second connecting plate being mounted on the rotating mechanism, a driving component being mounted inside the first guide groove on the left side, and a cutting mechanism being mounted on the upper surface of the base.

[0006] Preferably, the drive assembly includes a bidirectional threaded rod, which is rotatably connected inside the first guide groove. The two first connecting plates on the left are respectively threaded onto two opposite threads of the bidirectional threaded rod. A transmission threaded rod is rotatably connected inside the second guide groove on the left, and the second connecting plate on the left is threaded onto the outer surface of the transmission threaded rod.

[0007] Preferably, a motor is fixedly connected to the upper surface of the left-side fixing plate, and the output shaft of the motor rotatably penetrates into the interior of the left-side fixing plate. A cavity is opened inside the left-side fixing plate, and two mounting shafts are rotatably connected inside the cavity. The left-side mounting shaft is connected to the output shaft of the motor.

[0008] Preferably, both mounting shafts are rotatably inserted into the interior of the first guide groove and the second guide groove, respectively, and the two mounting shafts are fixedly connected to the bidirectional threaded rod and the transmission threaded rod, respectively.

[0009] Preferably, a timing pulley is fixedly sleeved at one end of each of the two mounting shafts located inside the cavity, and a timing belt is externally engaged with the two timing pulleys.

[0010] Preferably, guide rods are fixedly connected inside the first guide groove and the second guide groove inside the fixed plate on the right, and the first connecting plate and the second connecting plate on the right are slidably sleeved on the outside of the two guide rods.

[0011] Preferably, a sliding groove is provided on the adjacent side surface of the two vertical plates, the lifting plate is slidably connected inside the sliding groove, a second driving mechanism is provided inside the left sliding groove, and corrugated sealing gaskets are fixedly connected to the bottom walls of the two sliding grooves, with the upper end of the corrugated sealing gaskets fixedly connected to the lifting plate.

[0012] Preferably, the upper surface of the base is provided with a collection groove, and a collection hopper is slidably connected inside the base, with the collection groove and the collection hopper being connected in communication.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes the cooperation between structures such as a bidirectional threaded rod, a transmission threaded rod, a first connecting plate, and a second connecting plate. During non-circumferential cutting, the arc-shaped clamping plate stabilizes and fixes the pipe with symmetrical clamping force, effectively counteracting the radial force generated by the tool feed during cutting, preventing pipe offset or vibration, and preventing defects such as cracking and wrinkling caused by uneven force, thus ensuring the integrity of the pipe structure. During circumferential cutting, the line contact between the guide wheel and the pipe, combined with uniform rotation drive, forms a uniform circumferential cutting trajectory. Combined with the radial positioning effect of the guide wheel, it can significantly improve the smoothness and angle consistency of the cutting surface, effectively improving the flexibility of the device and facilitating flexible selection according to actual usage requirements.

[0014] 2. This utility model utilizes the coordination between the motor, mounting shaft, synchronous belt, and synchronous pulley to ensure that when the guide wheel descends and contacts the pipe, the clamping plate automatically releases its grip, ensuring that the guide wheel smoothly drives the pipe to rotate to complete the circumferential cutting. When the clamping plate starts to clamp the pipe, the guide wheel automatically disengages, ensuring stable clamping during non-circumferential cutting. This switching does not require complex manual adjustments, effectively reducing operation steps and lowering the skill requirements for operators. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a cooling and cutting device for biaxially oriented rigid polyvinyl chloride pipe according to the present invention. Figure 2 This is a schematic diagram of the structure of the base of this utility model; Figure 3 This is a first schematic cross-sectional view of the fixing plate of this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a second schematic cross-sectional view of the fixing plate of this utility model.

[0016] In the diagram: 1. Base; 2. Vertical plate; 3. Lifting plate; 4. Protective box; 5. Through port; 6. Rotating mechanism; 7. Sliding groove; 8. First drive mechanism; 9. Arc-shaped clamping plate; 10. Fixing plate; 11. First guide groove; 12. First connecting plate; 13. Second guide groove; 14. Second connecting plate; 15. Cutting mechanism; 16. Bidirectional threaded rod; 17. Motor; 18. Transmission threaded rod; 19. Cavity; 20. Mounting shaft; 21. Synchronous pulley; 22. Synchronous belt; 23. Guide rod; 24. Second drive mechanism; 25. Collection hopper; 26. Collection groove; 27. Corrugated sealing gasket. Detailed Implementation

[0017] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0018] Please see Figures 1-5 As shown, a cooling and cutting device for biaxially oriented rigid polyvinyl chloride (PVC) pipe includes a base 1. Two vertical plates 2 are fixedly connected to the upper surface of the base 1, and a lifting plate 3 is slidably connected between the two vertical plates 2. A protective box 4 is fixedly connected to the upper surface of the lifting plate 3. Openings 5 ​​are provided on both sides of the protective box 4, allowing the pipe section to be cut to be inserted into the protective box 4, thus effectively reducing debris splashing during subsequent cutting. Rotating mechanisms 6 are provided on both sides of the protective box 4, and a first drive mechanism 8 is provided on the surface of the rotating mechanism 6. The power source in the first drive mechanism 8 is activated by an external control component, and the rotation of the guide wheel in the rotating mechanism 6 is achieved through the transmission of sprockets and chains, thereby enabling the rotating mechanism 6 to drive the pipe to rotate. The protective box 4 is provided with... Two arc-shaped clamping plates 9 and four fixed plates 10 are fixedly connected to the upper surface of the lifting plate 3. The four fixed plates 10 are located on both sides of the protective box 4. The two fixed plates 10 on one side are respectively provided with a first guide groove 11 and a second guide groove 13 on their adjacent side surfaces. Two first connecting plates 12 are slidably connected inside the first guide groove 11. The first connecting plates 12 and the arc-shaped clamping plates 9 are fixedly connected. A second connecting plate 14 is slidably connected inside the second guide groove 13. The second connecting plate 14 is set on the rotating mechanism 6. A drive component is set inside the first guide groove 11 on the left side. A cutting mechanism 15 is set on the upper surface of the base 1. The power source in the cutting mechanism 15 is started by an external control component, and the cutting tool can be rotated by means of the transmission of the coupling and other mechanisms, thereby realizing the subsequent cutting of the pipe.

[0019] The drive assembly includes a bidirectional threaded rod 16, which is rotatably connected inside the first guide groove 11. Two first connecting plates 12 on the left are threaded onto the two opposite threads of the bidirectional threaded rod 16. A transmission threaded rod 18 is rotatably connected inside the second guide groove 13 on the left. A second connecting plate 14 on the left is threaded onto the outer surface of the transmission threaded rod 18. The rotation of the bidirectional threaded rod 16 can drive the first connecting plate 12 to slide inside the first guide groove 11, thereby driving the movement of the arc-shaped clamping plate 9. The rotation of the transmission threaded rod 18 can drive the movement of the second connecting plate 14, thereby driving the movement of the rotating mechanism 6. When the arc-shaped clamping plates 9 approach each other and clamp the pipe, the rotating mechanism 6 will move away from the pipe.

[0020] A motor 17 is fixedly connected to the upper surface of the left fixed plate 10. The output shaft of the motor 17 rotates through the interior of the left fixed plate 10. A cavity 19 is opened inside the left fixed plate 10. Two mounting shafts 20 are rotatably connected inside the cavity 19. The left mounting shaft 20 and the output shaft of the motor 17 are connected by a coupling. The left mounting shaft 20 can be driven to rotate by starting the motor 17.

[0021] Among them, the motor 17 is matched with a power supply, wires, controller and microcomputer, etc. Since they are not the main structures, they will not be described in detail in this article.

[0022] Both mounting shafts 20 are rotatably inserted into the first guide groove 11 and the second guide groove 13 respectively. The two mounting shafts 20 are fixedly connected to the bidirectional threaded rod 16 and the transmission threaded rod 18 respectively. The rotation of the two mounting shafts 20 can drive the rotation of the bidirectional threaded rod 16 and the transmission threaded rod 18 respectively.

[0023] Both mounting shafts 20 are fixedly fitted with synchronous pulleys 21 at one end inside the cavity 19. The two synchronous pulleys 21 are externally meshed with synchronous belts 22. The motor 17 drives the left mounting shaft 20 to rotate. At this time, the right mounting shaft 20 will rotate synchronously under the transmission of the synchronous pulleys 21 and the synchronous belts 22.

[0024] Guide rods 23 are fixedly connected to the first guide groove 11 and the second guide groove 13 inside the right fixed plate 10. The first connecting plate 12 and the second connecting plate 14 on the right are slidably sleeved on the outside of the two guide rods 23. The setting of the guide rods 23 further ensures the stability of the movement of the rotating mechanism 6 and the arc-shaped clamping plate 9.

[0025] Sliding grooves 7 are provided on the adjacent surfaces of the two vertical plates 2. The lifting plate 3 is slidably connected inside the sliding grooves 7. A second drive mechanism 24 is provided inside the left sliding groove 7. Corrugated sealing gaskets 27 are fixedly connected to the bottom walls of the two sliding grooves 7. The upper end of the corrugated sealing gasket 27 is fixedly connected to the lifting plate 3. The setting of the second drive mechanism 24 facilitates the adjustment of the pipe height, thereby improving the cutting effect. At the same time, the setting of the corrugated sealing gasket 27 can effectively prevent debris from entering the sliding groove 7.

[0026] In the above embodiments, the first driving mechanism 8, the second driving mechanism 24 and the cutting mechanism 15 are all existing structures. For details, please refer to the prior art with announcement number CN219152997U. Since they are not the main structures, they will not be described in detail here.

[0027] The upper surface of the base 1 is provided with a collection groove 26, and the inside of the base 1 is slidably connected with a collection hopper 25. The collection groove 26 and the collection hopper 25 are connected. Through the cooperation between the collection groove 26 and the collection hopper 25, it is convenient to collect the debris generated by cutting.

[0028] Working principle: The operator inserts the PVC pipe to be cut into the inlet 5. When circumferential cutting is required, the output shaft of the motor 17 is started by the external controller and rotated clockwise. At this time, starting the motor 17 drives the rotation of the left mounting shaft 20. The rotation of the left mounting shaft 20 by the motor 17 drives the right mounting shaft 20 to rotate synchronously under the transmission of the synchronous pulley 21 and the synchronous belt 22. The rotation of the two mounting shafts 20 drives the rotation of the bidirectional threaded rod 16 and the transmission threaded rod 18 respectively. The rotation of the bidirectional threaded rod 16 drives the first connecting plate 12 to slide inside the first guide groove 11, thereby driving the movement of the arc-shaped clamping plate 9. At this time, the arc-shaped clamping plate 9 will move away from the pipe. The rotation of the transmission threaded rod 18 drives the movement of the second connecting plate 14, thereby driving the movement of the rotating mechanism 6. At this time, the rotating mechanism 6 will approach the pipe until the guide wheel contacts the pipe. Then, the cutting mechanism 15 is started, and the pipe is circumferentially cut under the action of the guide wheel.

[0029] When circumferential cutting is not required, the output shaft of motor 17 is started to rotate counterclockwise by the external controller. At this time, the two arc-shaped clamping plates 9 will approach the pipe and clamp it, while the rotating mechanism 6 will move away from the pipe, thus ensuring the stability of the pipe during subsequent cutting.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A cooling cutting device for biaxially oriented rigid polyvinyl chloride pipes, comprising a base (1), characterized in that: Two vertical plates (2) are fixedly connected to the upper surface of the base (1), and a lifting plate (3) is slidably connected between the two vertical plates (2). A protective box (4) is fixedly connected to the upper surface of the lifting plate (3). A passage (5) is opened on both sides of the protective box (4). A rotating mechanism (6) is provided on both sides of the protective box (4). A first driving mechanism (8) is provided on the surface of the rotating mechanism (6). Two arc-shaped clamping plates (9) are provided on both sides of the protective box (4). Four fixing plates (10) are fixedly connected to the upper surface of the lifting plate (3). The four fixing plates (10) are respectively located at the protective box. On both sides of the protective box (4), the two fixed plates (10) on one side are provided with a first guide groove (11) and a second guide groove (13). The first guide groove (11) is slidably connected to two first connecting plates (12). The first connecting plate (12) is fixedly connected to the arc-shaped clamping plate (9). The second guide groove (13) is slidably connected to a second connecting plate (14). The second connecting plate (14) is set on the rotating mechanism (6). The first guide groove (11) on the left side is provided with a driving component. The upper surface of the base (1) is provided with a cutting mechanism (15).

2. A cooling and cutting device for biaxially oriented rigid PVC pipes according to claim 1, characterized in that: The drive assembly includes a bidirectional threaded rod (16), which is rotatably connected inside the first guide groove (11). The two first connecting plates (12) on the left are respectively threaded onto the two opposite threads of the bidirectional threaded rod (16). A transmission threaded rod (18) is rotatably connected inside the second guide groove (13) on the left, and the second connecting plate (14) on the left is threaded onto the outer surface of the transmission threaded rod (18).

3. A cooling and cutting device for a biaxially oriented rigid PVC pipe according to claim 2, characterized in that: A motor (17) is fixedly connected to the upper surface of the left fixed plate (10). The output shaft of the motor (17) rotates through the interior of the left fixed plate (10). A cavity (19) is opened inside the left fixed plate (10). Two mounting shafts (20) are rotatably connected inside the cavity (19). The left mounting shaft (20) and the output shaft of the motor (17) are fixedly connected.

4. A cooling and cutting apparatus for a biaxially oriented rigid PVC pipe according to claim 3, characterized in that: Both mounting shafts (20) are rotatably inserted into the interior of the first guide groove (11) and the second guide groove (13), respectively, and the two mounting shafts (20) are fixedly connected to the bidirectional threaded rod (16) and the transmission threaded rod (18), respectively.

5. A cooling and cutting apparatus for a biaxially oriented rigid PVC pipe according to claim 4, characterized in that: One end of each of the two mounting shafts (20) located inside the cavity (19) is fixedly fitted with a synchronous pulley (21), and the two synchronous pulleys (21) are externally meshed with a synchronous belt (22).

6. A cooling and cutting apparatus for a biaxially oriented rigid PVC pipe according to claim 5, characterized in that: The first guide groove (11) and the second guide groove (13) inside the fixed plate (10) on the right are both fixedly connected to guide rods (23), and the first connecting plate (12) and the second connecting plate (14) on the right are respectively slidably sleeved on the outside of the two guide rods (23).

7. A cooling and cutting device for a biaxially oriented rigid PVC pipe according to claim 6, characterized in that: The two vertical plates (2) are provided with sliding grooves (7) on their adjacent side surfaces. The lifting plate (3) is slidably connected inside the sliding groove (7). The sliding groove (7) on the left side is provided with a second driving mechanism (24). The bottom walls of the two sliding grooves (7) are fixedly connected with corrugated sealing gaskets (27). The upper end of the corrugated sealing gaskets (27) is fixedly connected to the lifting plate (3).

8. A cooling and cutting device for a biaxially oriented rigid PVC pipe according to claim 7, characterized in that: The upper surface of the base (1) is provided with a collection groove (26), and a collection bucket (25) is slidably connected inside the base (1). The collection groove (26) and the collection bucket (25) are connected.

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