A conveying and guiding device for PE pipe production and a method of using the same

Abstract

This invention discloses a PE pipe production conveying and guiding device and its usage method, including a base plate, a clamping assembly disposed on the base plate for restricting the vertical movement of the pipe body, and a guiding assembly disposed on the base plate for restricting the forward and backward movement of the pipe body. The clamping assembly is disposed on one side of the guiding assembly and adjacent to the forming outlet of the external pipe extruder. A support assembly is also disposed below the clamping assembly on the base plate. This invention utilizes the pipe body's ports to apply thrust to the first and second inclined plates during movement, automatically increasing the distance between the two first guide rollers and the distance between the two second guide rollers to match the outer diameter of the pipe body, allowing the pipe body to pass through and closely adhere to the upper, bottom, front, and rear parts of the pipe body. This prevents the pipe body from shifting forward / backward or vertically during movement, ensuring that the pipe body always moves in the correct direction and guaranteeing the production quality of the PE pipe.

Description

Technical Field

[0001] This invention specifically relates to a PE pipe production conveying and guiding device and its usage method. Background Technology

[0002] PE pipe is a new type of pipe made of high-density polyethylene raw material. It has comprehensive advantages such as safety, hygiene, convenient construction and long service life. It is widely used in building water supply, building drainage, buried drainage pipe, gas transmission pipe, electrical and telecommunications protection sleeve, industrial pipe, agricultural pipe and other fields. PE pipe production usually requires a conveying and guiding device, which helps to maintain the correct direction and position of PE pipe during the production process, thereby ensuring the production quality of PE pipe.

[0003] However, when adapting to pipes of different diameters, the existing PE pipe guiding device requires workers to first open the first guide roller that clamps the pipe. When the pipe passes by, the force applied to the first guide roller is released, so that the first guide roller fits against the outside of the pipe under the action of the first spring. This method cannot achieve automatic guidance of the pipe, requires worker intervention, and is not efficient.

[0004] Therefore, it is necessary to invent a PE pipe production conveying and guiding device and its usage method to solve the above problems. Summary of the Invention

[0005] (a) Purpose of the invention

[0006] The purpose of this invention is to provide a PE pipe production conveying and guiding device and its usage method. When the pipe body moves, its port applies a pushing force to the first and second inclined plates, so that the distance between the two first guide rollers and the distance between the two second guide rollers can automatically increase to match the outer diameter of the pipe body, allowing the pipe body to pass through and closely adhere to the upper, bottom, front, and rear parts of the pipe body. This avoids the pipe body from shifting in the front-back or up-down direction during movement, ensuring that the pipe body always moves in the correct direction, thus guaranteeing the production quality of the PE pipe and solving the above-mentioned deficiencies in the technology.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a PE pipe production conveying and guiding device, comprising a base plate, a crimping assembly disposed on the base plate for restricting the vertical movement of the pipe body, and a guiding assembly disposed on the base plate for restricting the forward and backward movement of the pipe body. The crimping assembly is disposed on one side of the guiding assembly and is adjacent to the forming outlet of the external pipe extruder. A supporting assembly is also disposed below the crimping assembly on the base plate.

[0009] The clamping assembly includes two vertical plates respectively disposed on the front and rear sides of the base plate. Each of the two vertical plates has a groove on an adjacent side. A slider that can slide up and down along the groove is disposed inside the groove. A first spring is installed on the top of the slider. A crossbar is connected between the two sliders. Short plates are installed at both ends of the crossbar. A long plate is connected between the two short plates. A pressure plate is installed on one side of the long plate. A first inclined plate is integrally formed on one side of the pressure plate. A rotating shaft is also installed at the bottom of the two vertical plates. A first guide roller is installed on the outside of the rotating shaft and the crossbar. The first inclined plate is used to guide the tube so that the top and bottom of the tube are in close contact with the outside of the two first guide rollers and are transported from left to right.

[0010] The guide assembly includes grooves on the front and rear sides of the top of the base plate. A movable block that can slide back and forth along the groove is provided inside the groove. A vertical rod is installed on the top of the movable block. A clamping plate is sleeved on the outer side of the bottom of the vertical rod. A second inclined plate is integrally formed on the side of the clamping plate near the clamping assembly. A second guide roller is sleeved on the outer side of the top of the vertical rod. The second inclined plate is used to guide the tube so that the front and rear parts of the tube are respectively in close contact with the outer sides of the two second guide rollers and are transported from left to right.

[0011] Preferably, the diameter of the middle part of the two first guide rollers is smaller than the diameter of the two ends, and the bottom surface of the pressure plate is flush with the middle part of the first guide roller located above.

[0012] Preferably, a motor is mounted on the vertical plate located on the front side, and the output end of the motor is connected to the rotating shaft.

[0013] Preferably, the support assembly includes two columns connected to the base plate, a support platform connected to the top of the two columns, and a downwardly recessed arc-shaped plate in the middle of the support platform.

[0014] Preferably, the two columns are symmetrically distributed about the transverse centerline of the base plate, and the middle part of the arc-shaped plate is flush with the middle part of the first guide roller located below.

[0015] Preferably, the junction of the second inclined plate and the clamping plate is flush with the second guide roller.

[0016] Preferably, a second spring is connected to each of the two movable blocks on the side that is far apart from each other, and the other end of the second spring is connected to the base plate.

[0017] Preferably, the outer sides of both the first guide roller and the second guide roller are covered with rubber pads.

[0018] Preferably, the clamping assembly, guide assembly, and support assembly can be arranged in groups of three, with multiple groups arranged along the transverse direction of the base plate.

[0019] A method for using a PE pipe production conveying and guiding device includes the following steps:

[0020] S1. Adjust the position of the bottom: The operator fixes the device at the forming outlet of the extruder and makes the middle of the arc plate flush with the bottom of the forming outlet of the extruder, so that when the tube is extruded, its bottom can contact the top of the arc plate and move along the arc plate from left to right.

[0021] S2. Limiting the upper and lower positions of the tube: When the tube moves to the right along the arc plate, its end will abut against the bottom of the first inclined plate. At this time, the first inclined plate will be pushed laterally and move upward, causing the pressure plate to move upward, so that there is a vertical opening between the pressure plate and the arc plate that allows the tube to pass through. When the pressure plate moves upward, under the transmission of the long plate, short plate and crossbar, the first guide roller located above will move upward. At this time, the distance between the two first guide rollers is equal to the vertical opening, and the tube can pass through. Under the action of the first spring force, the first guide roller located above and the pressure plate can press down on the top of the tube, so that the bottom of the tube is in close contact with the top of the arc plate and the first guide roller below, and the top of the tube is also in close contact with the bottom of the pressure plate and the first guide roller above, so that the top and bottom of the tube are pressed and limited, preventing the tube from shifting in the upper and lower positions when moving, and ensuring that the tube always moves in the correct direction.

[0022] S3. Limitation of the front and rear orientation of the tube: When the right end of the tube moves between the two second inclined plates, the two second inclined plates are pushed apart by the lateral force, providing a lateral opening through which the tube can pass. When the second inclined plates move apart, the two second guide rollers also move apart under the drive of the clamping plate. At this time, the distance between the two second guide rollers is equal to the lateral opening, and the tube can pass through. Under the action of the second spring force, the two second guide rollers tend to move closer to each other, so that when the two second guide rollers guide the tube to move to the right, they can be close to the front and rear sides of the tube, so that the front and rear sides of the tube are clamped and limited, avoiding the front and rear orientation deviation of the tube during movement, and ensuring that the tube always moves in the correct direction.

[0023] S4. Movement of the tube: When the crimping assembly, guide assembly and support assembly are working, in addition to moving to the right under the traction of the external traction machine, the operator can also start the motor to make the rotating shaft drive the first guide roller below to rotate, and indirectly push the tube to move to the right at an accelerated speed. Under the condition that the tube is limited on all four sides (front, back, top, and bottom), it moves smoothly to the right until the overall conveying of the tube is completed.

[0024] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of the present invention are:

[0025] When guiding and transporting the tube, the device automatically opens the clamping assembly upon contact with the tube's own port, thus automatically increasing the distance between the two first guide rollers to match the outer diameter of the tube. Under the action of the first spring, the rollers are pressed tightly against the top and bottom of the tube. Simultaneously, the guiding assembly also automatically opens upon contact with the tube's own port, thus automatically increasing the distance between the two second guide rollers to match the outer diameter of the tube. Under the action of the second spring, the second guide rollers are pressed tightly against the front and rear of the tube. This prevents the tube from shifting forward, backward, up, or down during movement, ensuring that the tube always moves in the correct direction. The entire process does not require workers to pre-leave a sufficiently wide gap for the tube to pass through, nor does it require workers to manually open the guide rollers in real time, reducing manual intervention and improving the efficiency of tube transport and guidance. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the crimping assembly structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the guide component structure of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base plate, 21. Vertical plate, 22. Slider, 23. First spring, 24. Horizontal bar, 25. Short plate, 26. Long plate, 27. Pressure plate, 28. First inclined plate, 29. Rotating shaft, 210. First guide roller, 211. Motor, 31. Moving block, 32. Vertical pole, 33. Clamping plate, 34. Second inclined plate, 35. Second guide roller, 36. Second spring, 41. Column, 42. Support platform, 43. Arc plate. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] This invention provides, for example Figure 1-3The PE pipe production conveying and guiding device shown includes a base plate 1, a crimping assembly disposed on the base plate 1 for restricting the vertical movement of the pipe body, and a guiding assembly disposed on the base plate 1 for restricting the forward and backward movement of the pipe body. The crimping assembly is disposed on one side of the guiding assembly and is adjacent to the forming outlet of the external pipe extruder. A support assembly is also disposed below the crimping assembly on the base plate 1.

[0034] The clamping assembly includes two vertical plates 21 respectively disposed on the front and rear sides of the base plate 1. Each of the two vertical plates 21 has a groove on an adjacent side. A slider 22 that can slide up and down along the groove is disposed inside the groove. A first spring 23 is installed on the top of the slider 22. A crossbar 24 is connected between the two sliders 22. Short plates 25 are installed at both ends of the crossbar 24. A long plate 26 is connected between the two short plates 25. A pressure plate 27 is installed on one side of the long plate 26. A first inclined plate 28 is integrally formed on one side of the pressure plate 27. A rotating shaft 29 is also installed at the bottom of the two vertical plates 21. A first guide roller 210 is installed on the outside of the rotating shaft 29 and the crossbar 24. The first inclined plate 28 is used to guide the tube so that the top and bottom of the tube are in close contact with the outside of the two first guide rollers 210 respectively, and the tube is transported from left to right.

[0035] The guide assembly includes grooves on the front and rear sides of the top of the base plate 1. A movable block 31 that can slide back and forth along the groove is provided inside the groove. A vertical rod 32 is installed on the top of the movable block 31. A clamping plate 33 is sleeved on the outer side of the bottom of the vertical rod 32. A second inclined plate 34 is integrally formed on the side of the clamping plate 33 near the clamping assembly. A second guide roller 35 is sleeved on the outer side of the top of the vertical rod 32. The second inclined plate 34 is used to guide the tube so that the front and rear parts of the tube are respectively in close contact with the outer sides of the two second guide rollers 35 and are transported from left to right.

[0036] In one embodiment, the mid-section diameter of both first guide rollers 210 is smaller than the end diameters, and the bottom surface of the pressure plate 27 is flush with the mid-section of the upper first guide roller 210, while the mid-section of the arc plate 43 is flush with the mid-section of the lower first guide roller 210. This ensures that after the pressure plate 27 moves upward, the distance between it and the arc plate 43 is equal to the distance between the two first guide rollers 210, guaranteeing the normal insertion of the tube. A motor 211 is mounted on the front vertical plate 21, and the output end of the motor 211 is connected to the rotating shaft 29. This allows the device to drive the tube to move to the right when it is being pulled by the traction machine, increasing the tube's moving speed. Furthermore, both first guide rollers 210 and two second guide rollers 35 rotate around their own axes as the tube moves, reducing friction with the tube and preventing scratches and damage to the tube's exterior.

[0037] In one embodiment, the support assembly includes two columns 41 connected to the base plate 1. The tops of the two columns 41 are connected to a support platform 42. The support platform 42 has a downwardly recessed arc-shaped plate 43 in the middle, so that the bottom of the tube extruded by the extruder can move to the right along the arc-shaped plate 43. When the two first guide rollers 210 clamp the tube, the distance from the tube axis to the two first guide rollers 210 is equal. The two columns 41 are symmetrically distributed about the transverse centerline of the base plate 1. The junction of the second inclined plate 34 and the clamping plate 33 is flush with the second guide roller 35, so that the distance between the two second inclined plates 34 after translation is equal to the distance between the two second guide rollers 35, which can ensure the normal insertion of the tube. The two moving blocks 31 are each connected to a second spring 36 on the side away from each other. The other end of the second spring 36 is connected to the base plate 1, which can provide elasticity to the second guide rollers 35, so that the two second guide rollers 35 always have a tendency to move closer to each other, clamping the front and rear sides of the tube.

[0038] In one embodiment, the outer sides of the first guide roller 210 and the second guide roller 35 are both wrapped with rubber pads, which can reduce the friction on the outer surface of the tube when the tube moves and prevent scratches from appearing on the outer surface of the tube.

[0039] In one embodiment, the crimping assembly, guide assembly, and support assembly can be arranged in groups of three, with multiple groups arranged along the transverse direction of the base plate 1, so that when the pipe body moves, it has multiple front-to-back and top-to-bottom limits, maintaining the correct direction and position of the pipe body movement, thereby ensuring the production quality of the PE pipe.

[0040] A method for using a PE pipe production conveying and guiding device includes the following steps:

[0041] S1. Adjust the position of the bottom: The operator fixes the device at the forming outlet of the extruder and makes the middle part of the arc plate 43 flush with the bottom of the forming outlet of the extruder, so that when the tube is extruded, its bottom can contact the top of the arc plate 43 and move along the arc plate 43 from left to right.

[0042] S2. Limitation of the upper and lower positions of the tube body: When the tube body moves to the right along the arc plate 43, its end will abut against the lower part of the first inclined plate 28. At this time, the first inclined plate 28 is subjected to lateral thrust and will move upward, driving the pressure plate 27 to move upward, so that there is a vertical opening between the pressure plate 27 and the arc plate 43 that allows the tube body to pass through. When the pressure plate 27 moves upward, under the transmission of the long plate 26, the short plate 25 and the crossbar 24, the first guide roller 210 located above will move upward. At this time, the space between the two first guide rollers 210 is... The distance is equal to the vertical opening, allowing the tube to pass through. Under the action of the first spring 23, the first guide roller 210 and the pressure plate 27 located above can press down on the top of the tube, so that the bottom of the tube is in close contact with the top of the arc plate 43 and the first guide roller 210 below. The top of the tube is also in close contact with the bottom of the pressure plate 27 and the first guide roller 210 above, so that the top and bottom of the tube are pressed and limited, preventing the tube from shifting vertically during movement and ensuring that the tube always moves in the correct direction.

[0043] Furthermore, the first guide roller 210 above can rotate around the axis of the crossbar 24 due to friction between it and the tube body, thus preventing scratches from appearing on the top of the tube body;

[0044] S3. Limitation of the front and rear orientation of the tube: When the right end of the tube moves between the two second inclined plates 34, the two second inclined plates 34 are pushed apart by the lateral force, providing a lateral opening through which the tube can pass. When the second inclined plates 34 move apart, the two second guide rollers 35 will also move apart under the drive of the clamping plate 33. At this time, the distance between the two second guide rollers 35 is equal to the lateral opening, and the tube can pass through. Under the action of the elastic force of the second spring 36, the two second guide rollers 35 tend to move closer to each other, so that when the two second guide rollers 35 guide the tube to move to the right, they can be close to the front and rear sides of the tube, so that the front and rear sides of the tube are clamped and limited, avoiding the tube from shifting in the front and rear orientation when moving, and ensuring that the tube always moves in the correct direction.

[0045] S4. Movement of the tube: When the clamping assembly, the guiding assembly and the supporting assembly are working, in addition to moving to the right under the traction of the external traction machine, the operator can also start the motor 211 to make the rotating shaft 29 drive the first guide roller 210 below to rotate, and indirectly push the tube to move to the right at an accelerated speed. Under the condition that the tube is limited on all four sides (front, back, top, and bottom), it moves smoothly to the right until the overall conveying of the tube is completed.

[0046] Implementation method: When using this invention, the tilt angles of the first and second inclined plates are both set to 20-30 degrees. This angle setting ensures that when the tube moves, the first or second inclined plate will not fail to move immediately due to insufficient thrust, thus preventing damage to the tube end. At the same time, in order to ensure the quality of the tube, after the tube is conveyed and guided, during the cutting process, the operator can decide whether to retain the tube end portion according to the requirements.

[0047] Specifically, the staff fixes the device at the forming outlet of the extruder, making the middle of the arc plate 43 flush with the bottom of the forming outlet of the extruder. This allows the bottom of the tube to contact the top of the arc plate 43 when it is extruded, and it moves from left to right along the arc plate 43. When the tube is extruded by the extruder, it moves to the right under the traction of the traction machine. When the right end of the tube touches the bottom of the first inclined plate 28, the first inclined plate 28 moves upward, causing the pressure plate 27 to move upward. This creates a vertical opening between the pressure plate 27 and the arc plate 43, and between the two first guide rollers 210, allowing the tube to pass horizontally. Under the action of the spring force of the first spring 23, the bottom and top of the tube are respectively pressed and limited by the arc plate 43, the pressure plate 27, and the two first guide rollers 210, thereby preventing the tube from shifting vertically during movement and ensuring that the tube always moves in the correct direction.

[0048] Furthermore, the upper first guide roller 210 can rotate around the axis of the crossbar 24 due to friction with the tube body, thus preventing scratches from appearing on the top of the tube body. The output end of the motor 211 can drive the rotating shaft 29 to rotate, which in turn drives the lower first guide roller 210 to rotate, allowing the tube body to move smoothly to the right and indirectly pushing the tube body to accelerate to the right.

[0049] When the right port moves between the two second inclined plates 34, the two second inclined plates 34 will be pushed laterally, causing the two second guide rollers 35 to move away from each other, providing a lateral opening for the tube to pass through. Under the action of the second spring 36, the two second guide rollers 35 can clamp and limit the front and rear sides of the tube when guiding the tube to move to the right, so as to prevent the tube from shifting in the front and rear direction during movement and ensure that the tube always moves in the correct direction.

[0050] In summary, when guiding and transporting the tube, the device automatically opens the clamping assembly due to the contact of the tube's own port. This automatically increases the distance between the two first guide rollers 210 to match the outer diameter of the tube, and under the force of the first spring 23, they are pressed tightly against the top and bottom of the tube. Simultaneously, the guiding assembly also automatically opens due to the contact of the tube's own port, automatically increasing the distance between the two second guide rollers 35 to match the outer diameter of the tube, and under the force of the second spring 36, they are pressed tightly against the front and rear of the tube. This prevents the tube from shifting forward / backward or vertically during movement, ensuring that the tube always moves in the correct direction. The entire process does not require operators to pre-leave a sufficiently wide gap for the tube to pass through, nor does it require operators to manually open the guide rollers in real time, reducing manual intervention and improving the efficiency of tube conveying and guiding.

[0051] This embodiment specifically solves the problem that in the current PE pipe guiding device, when adapting to pipes of different diameters, workers need to open the first guide roller 210 that clamps the pipe beforehand. When the pipe passes by, the force applied to the first guide roller 210 is released, so that the first guide roller 210 fits against the outside of the pipe under the action of the first spring 23. This method cannot achieve automatic guidance of the pipe, requires worker intervention, and is inefficient.

[0052] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A PE pipe production conveying guide device, characterized by: It includes a base plate (1), a clamping assembly disposed on the base plate (1) for restricting the vertical movement of the tube body, and a guide assembly disposed on the base plate (1) for restricting the forward and backward movement of the tube body. The clamping assembly is disposed on one side of the guide assembly and is adjacent to the forming outlet of the external tube body extruder. The base plate (1) is also provided with a support assembly located below the clamping assembly. The clamping assembly includes two vertical plates (21) respectively disposed on the front and rear sides of the base plate (1). Each of the two vertical plates (21) has a groove on an adjacent side. A slider (22) that can slide up and down along the groove is disposed inside the groove. A first spring (23) is installed on the top of the slider (22). A crossbar (24) is connected between the two sliders (22). Short plates (25) are installed at both ends of the crossbar (24). A long plate (26) is connected between the two short plates (25). A pressure plate (27) is installed on one side of the long plate (26). A first inclined plate (28) is integrally formed on one side of the pressure plate (27). A rotating shaft (29) is also installed at the bottom of the two vertical plates (21). A first guide roller (210) is installed on the outside of the rotating shaft (29) and the crossbar (24). The first inclined plate (28) is used to guide the tube so that the top and bottom of the tube are in close contact with the outside of the two first guide rollers (210) and are transported from left to right. The guide assembly includes grooves on the front and rear sides of the top of the base plate (1). Inside the grooves are movable blocks (31) that can slide back and forth along the grooves. A pole (32) is installed on the top of the movable block (31). A clamping plate (33) is sleeved on the outer side of the bottom of the pole (32). A second inclined plate (34) is integrally formed on the side of the clamping plate (33) near the clamping assembly. A second guide roller (35) is sleeved on the outer side of the top of the pole (32). The second inclined plate (34) is used to guide the tube so that the front and rear parts of the tube are in close contact with the outer sides of the two second guide rollers (35) respectively, and are transported from left to right. The diameter of the middle part of the two first guide rollers (210) is smaller than the diameter of the two ends, and the bottom surface of the pressure plate (27) is flush with the middle part of the first guide roller (210) located above; The support assembly includes two columns (41) connected to the base plate (1), and a support platform (42) is connected to the top of the two columns (41). A downwardly recessed arc plate (43) is provided in the middle of the support platform (42). The two columns (41) are symmetrically distributed about the transverse center line of the base plate (1), and the middle part of the arc plate (43) is flush with the middle part of the first guide roller (210) located below. The junction of the second inclined plate (34) and the clamping plate (33) is flush with the second guide roller (35); The two movable blocks (31) are each connected to a second spring (36) on the side away from each other, and the other end of the second spring (36) is connected to the base plate (1).

2. A PE pipe production conveying guide device according to claim 1, characterized in that: in, A motor (211) is installed on the vertical plate (21) located on the front side, and the output end of the motor (211) is connected to the rotating shaft (29).

3. The PE pipe production conveying and guiding device according to claim 1, characterized in that: The outer sides of the first guide roller (210) and the second guide roller (35) are both covered with rubber pads.

4. The PE pipe production conveying and guiding device according to claim 1, characterized in that: The clamping assembly, guide assembly, and support assembly can be arranged in groups of three, with multiple groups arranged along the transverse direction of the base plate (1).

5. Use of a PE pipe production conveying guide according to any one of claims 1-4, characterized in that: Includes the following steps: S1. Adjust the position of the bottom: The staff fixes the device at the molding outlet of the extruder and makes the middle part of the arc plate (43) flush with the bottom of the molding outlet of the extruder, so that when the tube is extruded, its bottom can contact the top of the arc plate (43) and move from left to right along the arc plate (43). S2. Limitation of the upper and lower positions of the tube body: When the tube body moves to the right along the arc plate (43), its end will abut against the lower part of the first inclined plate (28). At this time, the first inclined plate (28) is subjected to lateral thrust and will move upward, driving the pressure plate (27) to move upward, so that there is a vertical opening between the pressure plate (27) and the arc plate (43) that allows the tube body to pass through. When the pressure plate (27) moves upward, under the transmission of the long plate (26), the short plate (25) and the cross bar (24), the first guide roller (210) located above will move upward. At this time, the two first guide rollers (210) The spacing between the tubes is equal to the vertical opening, allowing the tube to pass through. The first guide roller (210) and the pressure plate (27) located above can press down on the top of the tube under the action of the spring force of the first spring (23), so that the bottom of the tube is in close contact with the top of the arc plate (43) and the first guide roller (210) below. The top of the tube is also in close contact with the bottom of the pressure plate (27) and the first guide roller (210) above, so that the top and bottom of the tube are pressed and limited, preventing the tube from shifting in the upper and lower positions when it moves, and ensuring that the tube always moves in the correct direction. S3. Limitation of the front and rear orientation of the tube: When the right side port of the tube moves between the two second inclined plates (34), the two second inclined plates (34) are pushed by the lateral force and begin to move away from each other, providing a lateral opening through which the tube can pass. When the second inclined plates (34) move away from each other, under the transmission of the clamping plate (33), the two second guide rollers (35) also move away from each other. At this time, the distance between the two second guide rollers (35) is equal to the lateral opening, and the tube can pass through. Under the action of the elastic force of the second spring (36), the two second guide rollers (35) tend to move closer to each other, so that when the two second guide rollers (35) guide the tube to move to the right, they can be close to the front and rear sides of the tube, so that the front and rear sides of the tube are clamped and limited, avoiding the tube from shifting in the front and rear orientation when it moves, and ensuring that the tube always moves in the correct direction. S4. Movement of the tube: When the clamping assembly, guide assembly and support assembly are working, in addition to moving to the right under the traction of the external traction machine, the operator can also start the motor (211) to make the rotating shaft (29) drive the first guide roller (210) below to rotate, and indirectly push the tube to move to the right at an accelerated speed. Under the condition that the front, back, top and bottom four sides of the tube are limited, the tube moves smoothly to the right until the overall conveying of the tube is completed.

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