Cooling device for spirally wound pipe processing and method of use thereof

Abstract

The present invention discloses a cooling device for processing spirally wound pipes and a method of using the same, comprising: a supporting platform; an arc-shaped plate fixedly connected to the supporting platform; a mounting plate fixedly connected to the arc-shaped plate; multiple groups of spray heads, arranged on the arc-shaped plate; multiple groups of air outlet ducts, arranged on the mounting plate; multiple groups of movable rollers, arranged on the supporting platform, for supporting the spirally wound pipe; wherein, multiple groups of the spray heads are evenly arranged on the arc-shaped plate, and multiple groups of the air outlet ducts are evenly arranged on the mounting plate; wherein, the mounting plate is arranged on the side of the spray heads; the beneficial effect of the present invention is that through the above-mentioned air shielding curtain, when the cooling water is discharged from the spray head and placed on the surface of the spirally wound pipe, the splashing cooling water can be blocked, thereby preventing the cooling water from splashing arbitrarily and causing pollution to the working environment, and also facilitating the recycling and reuse of the cooling water.

Description

Technical Field

[0001] The present invention relates to the technical field of spirally wound pipes, in particular to a cooling device for processing spirally wound pipes and a method for using the same. Background Art

[0002] Spiral pipe is a type of pipe made from high-density polyethylene (HDPE) through a process of winding and welding. Due to its unique forming process, pipes with diameters up to 3 meters can be produced, a feat difficult to achieve with other production processes. HDPE's excellent fusion welding properties not only guarantee the product's forming process and quality, but also provide a variety of reliable connection methods for construction.

[0003] In the prior art, a Chinese patent with publication number CN214521921U discloses a high-efficiency cooling device for hollow-walled wound pipes, comprising a winding device body, a water tank, a cooling fan, an arc-shaped fixing plate, and a booster water pump; the water tank is disposed on one side of the winding device body, and a protective tank cover is provided on the water tank. A pair of heat dissipation fixing holes are bored on the side of the water tank away from the protective tank cover; a pair of cooling fans are installed in the heat dissipation fixing holes, and a return plate is provided on the side of the cooling fan close to the winding device body, forming a return heat dissipation cavity between the return plate and the water tank. The present utility model adds corresponding structures to the hollow-walled wound pipe cooling device, thereby evenly dissipating heat from the hollow-walled wound pipe, improving the efficiency of cooling the hollow-walled wound pipe, and simultaneously cooling and refluxing the cooling liquid after use, thereby improving the cooling effect of the hollow-walled wound pipe cooling device during use and reducing the operating cost of the hollow-walled wound pipe cooling device.

[0004] However, when the above-mentioned cooling device cools the coiled pipe, the cooling water sprayed on the surface of the coiled pipe will splash randomly, causing pollution to the working environment used for producing the coiled pipe. It is also not convenient to recycle and reuse the cooling water. In view of this, the present invention proposes a cooling device for spirally coiled pipe processing to solve the above-mentioned problems. Summary of the Invention

[0005] The object of the present invention is to provide a cooling device for processing spirally wound pipes to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A cooling device for spirally wound pipe processing, comprising:

[0008] Support platform; an arc-shaped plate is fixedly connected to the support platform; a mounting plate is fixedly connected to the arc-shaped plate;

[0009] Multiple groups of spray heads are provided on the arc-shaped plate and are used for water cooling the spirally wound tube;

[0010] Multiple groups of air outlet ducts are provided on the mounting plate and are used to block the cooling water source;

[0011] Multiple sets of movable rollers are provided on the support platform for supporting the spirally wound pipe;

[0012] Wherein, multiple groups of the sprinkler heads are evenly arranged on the arc plate, and multiple groups of the air outlet ducts are evenly arranged on the mounting plate;

[0013] Wherein, the mounting plate is arranged on the side of the sprinkler head.

[0014] As an improvement of the above technical solution, a diversion pipe is fixedly connected to the center of the arc plate, multiple groups of the spray heads are fixedly connected to the diversion pipe, and multiple groups of spray heads are communicated with the inner cavity of the diversion pipe.

[0015] As an improvement of the above technical solution, multiple groups of square sleeves are fixedly connected to the mounting plate, square pipes are slidably connected inside the square sleeves, multiple groups of air outlet pipes are respectively fixedly connected to the multiple groups of square pipes, and the air outlet pipes are connected to the inner cavity of the square pipes.

[0016] As an improvement of the above technical solution, a positioning bolt is threadedly connected to the square sleeve, and the positioning bolt contacts the surface of the square pipe. The square pipe is also fixedly connected to a connecting pipe connected to the inner cavity. The square pipe and the air outlet pipe are an integrally formed structure.

[0017] As an improvement of the above technical solution, an elastic waterproof cloth is also fixedly connected to the mounting plate, and the elastic waterproof cloth is arranged toward the sprinkler head. Fixing bolts are provided on multiple groups of square pipes, and the elastic waterproof cloth is fixed to the square pipes by fixing bolts.

[0018] As an improvement of the above technical solution, fixed plates are provided at both ends of the movable roller, and each group of the fixed plates is slidably connected to a limit plate, and the limit plate is fixedly connected to the support platform. An adjustment hole is opened on the limit plate, and a limit bolt is provided in the adjustment hole. The limit bolt is threadedly connected to the fixed plate.

[0019] As an improvement of the above technical solution, the bottom end surface of the support platform is fixedly connected to a box body, and a plurality of water inlet holes are provided on the support platform, and the water inlet holes are communicated with the inner cavity of the box body.

[0020] As an improvement of the above technical solution, both ends of the arc-shaped plate are fixedly connected with water baffles, and the height of the water baffles is lower than the height of the movable roller, which is used to prevent cooling water from flowing on the supporting platform.

[0021] The method for using the cooling device for spirally wound pipe processing includes the following steps:

[0022] S1. Pipeline loading:

[0023] Placing the spirally wound pipe after winding production on the supporting platform, and allowing the spirally wound pipe to pass through the curved plate and be placed under the curved plate, while allowing the spirally wound pipe to contact the movable roller;

[0024] S2. Air outlet adjustment:

[0025] Move the square pipe to make it rise and fall on the square sleeve, so that the air outlet pipe moves toward the spirally wound pipe. Repeat the above steps to adjust multiple groups of air outlet pipes, so that multiple groups of air outlet pipes surround the periphery of the spirally wound pipe.

[0026] S3, air outlet barrier:

[0027] Connect the connecting pipe to the external air supply equipment, and operate the air supply equipment at the same time, so that the high-pressure gas passes through the connecting pipe, the square pipe, the air outlet pipe in sequence to the surface of the spirally wound pipe, forming an air shielding curtain;

[0028] S4, spray cooling:

[0029] The water pump in the box operates to guide the cooling water into the diversion pipe, and the cooling water is cooled on the surface of the spirally wound pipe introduced by the sprinkler head;

[0030] S5. Position adjustment:

[0031] As the spirally wound pipe is continuously extended, the spirally wound pipe moves on the supporting platform, the sprinkler head cools different positions of the spirally wound pipe, and the airflow in the air outlet duct forms an air shielding curtain to block the cooling water.

[0032] As an improvement to the above technical solution, before loading the S1 pipe, if the distance between the two sets of movable rollers does not match the spirally wound pipe, move the two sets of movable rollers separately until the spirally wound pipe can be placed between the two sets of movable rollers and the spirally wound pipe is located in the middle position of the support platform, and then limit the fixed plate by the limiting bolts.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] When cooling the spirally wound pipe, the spirally wound pipe after winding production is placed on the supporting platform, and the spirally wound pipe is placed under the curved plate through the curved plate, and at the same time, the spirally wound pipe is in contact with the movable roller, so as to support the spirally wound pipe and keep it under the curved plate; at the same time, multiple groups of air outlet ducts introduce high-pressure gas into the surface of the spirally wound pipe to form an air shielding curtain, and the spray head introduces cooling water into the surface of the spirally wound pipe to cool the spirally wound pipe, and as the spirally wound pipe is continuously extended, the spirally wound pipe moves on the supporting platform, the spray head cools different positions of the spirally wound pipe, and the air shielding curtain formed by the airflow in the air outlet duct blocks the cooling water; through the above-mentioned air shielding curtain, the cooling water is discharged from the spray head When water is placed on the surface of the spirally wound pipe, it can block the splashing cooling water, thereby preventing the cooling water from splashing arbitrarily and causing pollution to the working environment, and it is also convenient for the cooling water to be recycled and reused; through the above-mentioned air shielding curtain, when the spirally wound pipe is cooled, the flowing high-pressure gas can be sprayed on the spirally wound pipe, and the dual combination of water cooling and air cooling can effectively improve the cooling efficiency; through the above-mentioned air shielding curtain, when the sprinkler head sprays cooling water to cool the spirally wound pipe, the flowing high-pressure gas can effectively take away the moisture on the surface of the spirally wound pipe, so that after the water cooling of the spirally wound pipe is completed, the surface of the spirally wound pipe can be kept dry, and after the spirally wound pipe is cut, dust and moisture can be prevented from merging to form stains on the outer wall of the spirally wound pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the structure of the present invention;

[0036] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0037] Figure 3 For the present invention Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0038] Figure 4 For the present invention Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0039] Figure 5 Schematic diagram of arrangement of the air outlet ducts of the present invention;

[0040] Figure 6 It is the workflow diagram of the present invention.

[0041] In the figure: 10, box body; 20, supporting platform; 21, water inlet; 22, limit plate; 221, limit bolt; 222, adjustment hole; 30, movable roller; 31, fixed plate; 40, curved plate; 41, water baffle; 42, sprinkler head; 43, diversion pipe; 50, mounting plate; 51, square sleeve; 511, positioning bolt; 52, square pipe; 53, fixing bolt; 54, air outlet pipe; 55, elastic waterproof cloth; 60, connecting pipe. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Example:

[0044] like Figure 1-6 As shown, this embodiment provides a cooling device for spirally wound pipe processing, comprising:

[0045] Support platform 20; the support platform 20 is fixedly connected to an arc-shaped plate 40; the arc-shaped plate 40 is fixedly connected to a mounting plate 50;

[0046] Multiple groups of spray heads 42 are provided on the arc-shaped plate 40 for water cooling the spirally wound tubes;

[0047] Multiple groups of air outlet ducts 54 are provided on the mounting plate 50 to block the cooling water source;

[0048] Multiple sets of movable rollers 30 are provided on the support platform 20 for supporting the spirally wound pipe;

[0049] Among them, multiple groups of the spray heads 42 are evenly arranged on the curved plate 40, and multiple groups of the air outlet ducts 54 are evenly arranged on the mounting plate 50;

[0050] The mounting plate 50 is disposed on the side of the shower head 42 .

[0051] In this embodiment, when cooling the spirally wound tube, the spirally wound tube is placed on the support platform 20 after winding, and the spirally wound tube is passed through the curved plate 40 and placed under the curved plate 40. At the same time, the spirally wound tube is brought into contact with the movable roller 30, thereby supporting the spirally wound tube and keeping it under the curved plate 40.

[0052] At the same time, multiple air outlet ducts 54 direct high-pressure gas onto the surface of the spirally wound pipe, forming an air shielding curtain. Furthermore, the spray heads 42 direct cooling water onto the surface of the spirally wound pipe to cool the spirally wound pipe. As the spirally wound pipe continues to extend and move on the support platform 20, the spray heads 42 cool different positions of the spirally wound pipe. Furthermore, the airflow in the air outlet ducts 54 forms an air shielding curtain that blocks the cooling water.

[0053] The air shielding curtain can block the splashing cooling water when the cooling water is discharged from the shower head 42 and placed on the surface of the spirally wound tube, thereby preventing the cooling water from splashing randomly and causing pollution to the working environment, and also facilitating the recycling and reuse of the cooling water.

[0054] Through the above-mentioned air shielding curtain, when cooling the spirally wound tube, the flowing high-pressure gas can be sprayed on the spirally wound tube, and the dual combination of water cooling and air cooling can effectively improve the cooling efficiency;

[0055] Through the above-mentioned air shielding curtain, when the sprinkler head 42 sprays cooling water to cool the spirally wound pipe, the flowing high-pressure gas can effectively take away the moisture on the surface of the spirally wound pipe, so that after the water cooling of the spirally wound pipe is completed, the surface of the spirally wound pipe can be kept dry, and after the spirally wound pipe is cut, dust and moisture can be prevented from merging to form stains on the outer wall of the spirally wound pipe.

[0056] Specifically, a diversion pipe 43 is fixedly connected to the center of the arc-shaped plate 40 , and multiple groups of the spray heads 42 are fixedly connected to the diversion pipe 43 , and the multiple groups of spray heads 42 are communicated with the inner cavity of the diversion pipe 43 .

[0057] In this embodiment, the multiple groups of spray heads 42 are opened and closed simultaneously, and the cooling water flow rates of the multiple groups of spray heads 42 are the same.

[0058] Specifically, multiple groups of square sleeves 51 are fixedly connected to the mounting plate 50, and square pipes 52 are slidably connected inside the square sleeves 51. Multiple groups of air outlet pipes 54 are respectively fixedly connected to the multiple groups of square pipes 52, and the air outlet pipes 54 are connected to the inner cavity of the square pipes 52.

[0059] In this embodiment, when cooling the spirally wound tube, the square tube 52 is moved so that the square tube 52 rises and falls on the square sleeve 51, thereby moving the air outlet duct 54 toward the spirally wound tube. The above steps are repeated to adjust multiple groups of air outlet ducts 54, so that multiple groups of air outlet ducts 54 surround the periphery of the spirally wound tube.

[0060] When the spirally wound tube is water-cooled, the airflow in the multiple groups of air outlet ducts 54 can form an air shielding curtain to block the cooling water, thereby preventing the cooling water from splashing.

[0061] Specifically, a positioning bolt 511 is threadedly connected to the square sleeve 51, and the positioning bolt 511 contacts the surface of the square pipe 52. The square pipe 52 is also fixedly connected to a connecting pipe 60 connected to the inner cavity. The square pipe 52 and the air outlet pipe 54 are an integrally formed structure.

[0062] In this embodiment, the connecting pipe 60 is connected to an external air supply device, which is preferably an air compressor;

[0063] When the air shielding curtain is formed, the air supply equipment operates so that the high-pressure gas passes through the connecting pipe 60, the square pipe 52, the air outlet pipe 54 in sequence to the surface of the spirally wound pipe, thereby blocking the cooling water.

[0064] Specifically, an elastic waterproof cloth 55 is fixedly connected to the mounting plate 50 , and the elastic waterproof cloth 55 is arranged toward the sprinkler head 42 . Fixing bolts 53 are provided on multiple groups of square pipes 52 , and the elastic waterproof cloth 55 is fixed to the square pipes 52 by the fixing bolts 53 .

[0065] In this embodiment, when the square pipe 52 moves in the square sleeve 51, the square pipe 52 drives the elastic waterproof cloth 55 to move, so that the elastic waterproof cloth 55 moves toward the spirally wound square pipe, preventing the cooling water from slipping out from the gap between the air outlet pipe 54 and the curved plate 40, causing pollution to the surrounding environment.

[0066] Specifically, fixed plates 31 are provided at both ends of the movable roller 30, and each group of the fixed plates 31 is slidably connected to a limit plate 22, and the limit plate 22 is fixedly connected to the support platform 20. An adjustment hole 222 is opened on the limit plate 22, and a limit bolt 221 is provided in the adjustment hole 222. The limit bolt 221 is threadedly connected to the fixed plate 31.

[0067] In this embodiment, if the distance between the two sets of movable rollers 30 does not match the spirally wound tube, the two sets of movable rollers 30 are moved separately until the spirally wound tube can be placed between the two sets of movable rollers 30 and the spirally wound tube is located in the middle position of the support platform 20. Then, the fixed plate 31 is limited by the limiting bolt 221, so that the spirally wound tube can be placed on the support platform 20, which is convenient for cooling the spirally wound tube.

[0068] Specifically, the bottom end surface of the support platform 20 is fixedly connected to the box body 10 . The support platform 20 is provided with multiple groups of water inlet holes 21 , and the water inlet holes 21 are communicated with the inner cavity of the box body 10 .

[0069] In this embodiment, a water pump is provided in the box body 10, and the water pump is connected to the diversion pipe 43, which is used to guide the cooling water to be sprayed out from the spray head 42. At the same time, after the cooling is completed, the cooling water can fall from the water inlet hole 21 into the inner cavity of the box body 10, which is convenient for recycling and reuse.

[0070] Specifically, both ends of the arc-shaped plate 40 are fixedly connected with a water baffle 41 . The height of the water baffle 41 is lower than that of the movable roller 30 and is used to prevent the cooling water from flowing on the support platform 20 .

[0071] A method for using a cooling device for spirally wound pipe processing comprises the following steps:

[0072] S1. Pipeline loading:

[0073] The spirally wound tube is placed on the support platform 20 after winding, and the spirally wound tube is passed through the curved plate 40 and placed under the curved plate 40, while the spirally wound tube is in contact with the movable roller 30;

[0074] S2. Air outlet adjustment:

[0075] Move the square pipe 52 so that it rises and falls on the square sleeve 51, thereby moving the air outlet pipe 54 toward the spirally wound pipe. Repeat the above steps to adjust multiple sets of air outlet pipes 54, so that multiple sets of air outlet pipes 54 surround the periphery of the spirally wound pipe.

[0076] S3, air outlet barrier:

[0077] Connect the connecting pipe 60 to the external air supply equipment, and operate the air supply equipment at the same time, so that the high-pressure gas passes through the connecting pipe 60, the square pipe 52, the air outlet pipe 54 in sequence to the surface of the spirally wound tube, forming an air shielding curtain;

[0078] S4, spray cooling:

[0079] The water pump in the housing 10 operates to direct the cooling water into the diversion pipe 43, and the cooling water is directed to the surface of the spirally wound pipe through the spray head 42 for cooling;

[0080] S5. Position adjustment:

[0081] As the spirally wound pipe is continuously extended, it moves on the supporting platform 20 , and the spray head 42 cools different positions of the spirally wound pipe. The airflow in the air outlet duct 54 forms an air shielding curtain to block the cooling water.

[0082] Before loading the S1 pipe, if the distance between the two sets of movable rollers 30 does not match the spirally wound pipe, move the two sets of movable rollers 30 separately until the spirally wound pipe can be placed between the two sets of movable rollers 30 and the spirally wound pipe is located in the middle position of the support platform 20, and then limit the fixed plate 31 by the limiting bolt 221.

[0083] The air shielding curtain can block the splashing cooling water when the cooling water is discharged from the shower head 42 and placed on the surface of the spirally wound tube, thereby preventing the cooling water from splashing randomly and causing pollution to the working environment, and also facilitating the recycling and reuse of the cooling water.

[0084] Through the above-mentioned air shielding curtain, when cooling the spirally wound tube, the flowing high-pressure gas can be sprayed on the spirally wound tube, and the dual combination of water cooling and air cooling can effectively improve the cooling efficiency;

[0085] Through the above-mentioned air shielding curtain, when the sprinkler head 42 sprays cooling water to cool the spirally wound pipe, the flowing high-pressure gas can effectively take away the moisture on the surface of the spirally wound pipe, so that after the water cooling of the spirally wound pipe is completed, the surface of the spirally wound pipe can be kept dry, and after the spirally wound pipe is cut, dust and moisture can be prevented from merging to form stains on the outer wall of the spirally wound pipe.

[0086] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for spirally wound pipe processing, characterized in that: include: A supporting platform (20); a curved plate (40) is fixedly connected to the supporting platform (20); a mounting plate (50) is fixedly connected to the curved plate (40); A plurality of spray heads (42) are provided on the arc-shaped plate (40) and are used for water cooling the spirally wound tube; A plurality of air outlet ducts (54) are provided on the mounting plate (50) and are used to block the cooling water source; A plurality of groups of movable rollers (30) are provided on the support platform (20) and are used to support the spirally wound pipe; Wherein, a plurality of groups of the spray heads (42) are evenly arranged on the arc-shaped plate (40), and a plurality of groups of the air outlet ducts (54) are evenly arranged on the mounting plate (50); Wherein, the mounting plate (50) is arranged on the side of the shower head (42); A diversion pipe (43) is fixedly connected to the center of the arc-shaped plate (40), and multiple groups of the spray heads (42) are fixedly connected to the diversion pipe (43), and the multiple groups of the spray heads (42) are communicated with the inner cavity of the diversion pipe (43); A plurality of groups of square sleeves (51) are fixedly connected to the mounting plate (50), a square pipe (52) is slidably connected inside the square sleeve (51), and a plurality of groups of air outlet pipes (54) are respectively fixedly connected to the plurality of groups of square pipes (52), and the air outlet pipes (54) are in communication with the inner cavity of the square pipe (52); The square sleeve (51) is threadedly connected to a positioning bolt (511), the positioning bolt (511) contacts the surface of the square pipe (52), and the square pipe (52) is also fixedly connected to a connecting pipe (60) communicating with the inner cavity. The square pipe (52) and the air outlet pipe (54) are an integrally formed structure. An elastic waterproof cloth (55) is also fixedly connected to the mounting plate (50), and the elastic waterproof cloth (55) is arranged toward the sprinkler head (42). A plurality of groups of square pipes (52) are each provided with fixing bolts (53), and the elastic waterproof cloth (55) is fixed to the square pipes (52) via the fixing bolts (53); Both ends of the movable roller (30) are provided with fixed plates (31), and each set of the fixed plates (31) is slidably connected to a limit plate (22), and the limit plate (22) is fixedly connected to the support platform (20). An adjustment hole (222) is provided on the limit plate (22), and a limit bolt (221) is provided in the adjustment hole (222). The limit bolt (221) is threadedly connected to the fixed plate (31); The bottom end surface of the support platform (20) is fixedly connected to the box body (10), and a plurality of water inlet holes (21) are provided on the support platform (20), and the water inlet holes (21) are communicated with the inner cavity of the box body (10).

2. The cooling device for spirally wound pipe processing according to claim 1, characterized in that: Both ends of the arc-shaped plate (40) are fixedly connected with water baffles (41), and the height of the water baffles (41) is lower than the height of the movable roller (30) and is used to prevent cooling water from flowing on the support platform (20).

3. A method for using the cooling device for spirally wound pipe processing according to any one of claims 1 to 2, characterized in that: The following steps are involved: S1. Pipeline loading: Placing the spirally wound tube after winding production on the support platform (20), and allowing the spirally wound tube to pass through the curved plate (40) and be placed below the curved plate (40), while allowing the spirally wound tube to contact the movable roller (30); S2. Air outlet adjustment: The square pipe (52) is moved so that the square pipe (52) is raised and lowered on the square sleeve (51), thereby causing the air outlet pipe (54) to move toward the spirally wound pipe. The above steps are repeated to adjust multiple groups of air outlet pipes (54), thereby causing multiple groups of air outlet pipes (54) to surround the periphery of the spirally wound pipe. S3, air outlet barrier: Connecting the connecting pipe (60) to an external air supply device, and operating the air supply device simultaneously, so that high-pressure gas passes through the connecting pipe (60), the square pipe (52), the air outlet pipe (54) in sequence to the surface of the spirally wound pipe, forming an air shielding curtain; S4, spray cooling: The water pump in the box (10) operates to introduce cooling water into the diversion pipe (43), and the cooling water is cooled by passing through the surface of the spirally wound pipe introduced by the spray head (42); S5. Position adjustment: As the spirally wound pipe is continuously extended, the spirally wound pipe moves on the support platform (20), the spray head (42) cools different positions of the spirally wound pipe, and the airflow in the air outlet duct (54) forms an air shielding curtain to block the cooling water.

4. The method for using the cooling device for spirally wound pipe processing according to claim 3, characterized in that: Before loading the S1 pipe, if the distance between the two sets of movable rollers (30) does not match the spirally wound pipe, the two sets of movable rollers (30) are moved respectively until the spirally wound pipe can be placed between the two sets of movable rollers (30) and the spirally wound pipe is located in the middle position of the support platform (20), and then the fixed plate (31) is limited by the limiting bolt (221).

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