A polyethylene pipe shaping device

Abstract

The invention belongs to the technical field of pipe production, and specifically is a polyethylene pipe shaping device, comprising a cooling shaping tank, a fixed ring plate, a rotating ring, an arc-shaped supporting plate and a driving component; the driving component drives the rotating ring to rotate in the middle of the fixed ring plate, driving the arc-shaped supporting plate to rotate; when a pair of arc-shaped supporting plates are respectively located at the top and bottom of the polyethylene pipe, the polyethylene pipe is positioned and clamped, so that both sides of the polyethylene pipe are exposed; after the pair of arc-shaped supporting plates are rotated to both sides of the polyethylene pipe, the top and bottom of the polyethylene pipe are exposed; because the adjacent arc-shaped supporting plates are staggered, when a plurality of rotating rings rotate, the plurality of arc-shaped supporting plates rotate to produce angular dislocation, so that when the polyethylene pipe passes through the cooling shaping tank, the outer side of the polyethylene pipe will not be blocked, so that the cooling rate of each part of the polyethylene pipe is consistent, the deformation of the polyethylene pipe is reduced, and the product quality of the polyethylene pipe is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe production, in particular to a polyethylene pipe shaping device. Background Art

[0002] Polyethylene is a highly crystalline, non-polar thermoplastic resin with excellent resistance to most domestic and industrial chemicals. It is often used to make pipes. Polyethylene pipes are non-toxic, have good low-temperature performance, can be wound to any length, and are easy to construct and install. They are widely used in various liquid transportation fields.

[0003] When preparing polyethylene pipes, the polyethylene powder is first screened and mixed, and then the pre-treated polyethylene powder is added to the extruder for heating and melting; the molten polyethylene material is pushed into the mold by the screw of the extruder; the pipe is formed through extrusion, stretching and other processes; then, the polyethylene pipe is stretched and cooled to shape; finally, the polyethylene pipe is cut and packaged to form a finished polyethylene pipe.

[0004] When the polyethylene pipe is cooled and shaped, it will be lifted by a supporting and lifting device. The supporting and lifting device is likely to block the bottom of the polyethylene pipe, resulting in uneven cooling rates at the top and bottom of the polyethylene pipe, which can easily cause deformation of the polyethylene pipe.

[0005] To this end, the present invention provides a polyethylene pipe shaping device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: a polyethylene pipe shaping device described in the present invention comprises a cooling shaping tank; a polyethylene pipe runs through the middle of the cooling shaping tank; a plurality of positioning units are arranged inside the cooling shaping tank, and the positioning units are sleeved on the outer ring of the polyethylene pipe; the positioning units comprise a pair of fixed ring plates; the pair of fixed ring plates are fixedly connected to the inner wall of the cooling shaping tank; a rotating ring is rotatably installed between the pair of fixed ring plates; a pair of arc-shaped supporting plates are symmetrically arranged on the inner ring of the rotating ring; the angles of the arc-shaped supporting plates of the inner rings of adjacent fixed ring plates are staggered; a driving assembly is arranged on the top of the cooling shaping tank, and the driving assembly drives the rotating ring to rotate; the driving assembly The components drive the rotating ring to rotate in the middle of the fixed ring plate, driving the arc-shaped supporting plate to rotate; when a pair of arc-shaped supporting plates are respectively located at the top and bottom of the polyethylene tube, the polyethylene tube is positioned and clamped, so that both sides of the polyethylene tube are exposed; after a pair of arc-shaped supporting plates are rotated to both sides of the polyethylene tube, the top and bottom of the polyethylene tube are exposed; since adjacent arc-shaped supporting plates are staggered, when multiple rotating rings rotate, multiple arc-shaped supporting plates rotate to produce angular dislocation, so that when the polyethylene tube passes through the cooling and shaping tank, the outside of the polyethylene tube will not be blocked, so that the cooling rate of each part of the polyethylene tube is consistent, the deformation of the polyethylene tube is reduced, and the product quality of the polyethylene tube is improved.

[0008] Preferably, the driving assembly includes a gear ring; a gear ring is fixedly connected to the middle part of the outer ring of the rotating ring; a slot is opened on the top of the cooling and shaping tank; a top cover is bolted to the top of the cooling and shaping tank; the top cover covers the top outside of the slot; a transmission rod is rotatably installed in the middle of the top cover; a plurality of No. 1 gears are fixedly connected to the outer ring of the transmission rod; the bottom of the No. 1 gear is meshed with the top of the gear ring; a motor is fixedly connected to one end of the top of the top cover; pulleys are fixedly connected to the rotating shaft of the motor and the end of the transmission rod; belts are provided on the outer rings of the two pulleys; sufficient power is provided for the rotation of the rotating ring and the arc-shaped support plate.

[0009] Preferably, the inner ring of the rotating ring is provided with an adjustment component; the adjustment component includes a fixing frame; the fixing frame is bolted to the inner ring of the rotating ring; a pair of slide grooves are provided on both sides of the fixing frame; a slide plate is provided in the middle of the fixing frame; both sides of the slide plate are slidably matched with the slide grooves, and the slide plate and the slide grooves are locked by bolts; a fixing column is fixedly connected to a surface of the middle part of the slide plate close to the center of the rotating ring; an end of the fixing column away from the slide plate is fixedly connected to the middle part of the convex surface of the arc-shaped support plate; thereby facilitating the cooling and shaping of polyethylene pipes of different specifications, and improving the application range of the positioning unit.

[0010] Preferably, the arc-shaped support plate is elastic; an elastic support block is fixedly connected to the middle of the concave surface of the arc-shaped support plate; a traction structure is arranged inside the fixed column, and the traction structure is used to pull the two ends of the arc-shaped support plate.

[0011] Preferably, the traction structure includes a sleeve rod; a sleeve rod is hinged at the middle of both ends of the arc support plate; the outer ring of the sleeve rod is fixedly connected with a traction belt; a sliding cavity is opened inside the fixed column near the end of the arc support plate; connecting ports are opened on both sides of the sliding cavity near the end of the arc support plate; a transmission cavity is opened inside the fixed column near the end of the slide plate; a screw rod is rotatably installed in the middle of the sliding cavity; the end of the screw rod near the slide plate rotates and extends into the transmission cavity; a slider is slidably installed inside the sliding cavity; the screw rod and the slider are threadedly matched; one end of the traction belt away from the sleeve rod is fixedly connected to the slider, and the traction belt slides through the connecting port; one end of the screw rod near the transmission cavity is fixedly connected with a face gear; a rotating rod is rotatably installed in the middle of the transmission cavity, and one end of the rotating rod rotates and passes through the outer wall of the fixed column; the outer ring of the rotating rod is fixedly connected with a second gear; the second gear is meshed with the face gear; thereby facilitating the positioning of polyethylene pipes of different specifications and reducing the deformation of polyethylene pipes.

[0012] Preferably, a plurality of annular cooling units are arranged inside the cooling and shaping tank, and the annular cooling units are sleeved on the outer ring of the polyethylene tube; the annular cooling units and the positioning units are arranged alternately; the annular cooling units include an annular seat; the annular seat is fixedly connected to the inner wall of the cooling and shaping tank; a plurality of nozzles are arranged around the inner ring of the annular seat; the nozzles are provided with a plurality of strip-shaped water outlets; a shunt pipe is arranged at the bottom of the cooling and shaping tank; the nozzles are connected to the shunt pipe; the shunt pipe is connected to the water storage tank through a water pump; a wastewater outlet is arranged at the bottom of the cooling and shaping tank.

[0013] Preferably, the inner ring of the ring seat is provided with an annular groove; the diverter pipe is connected with the annular groove; an inner ring is rotatably installed inside the annular groove; a sealing ring is provided between the inner ring and the annular groove; an annular cavity is provided inside the inner ring; the annular cavity is connected with the annular groove through a plurality of through holes; the nozzle is threadedly installed on the inner ring of the inner ring, and the nozzle is connected with the annular cavity; a plurality of connecting rods are fixedly connected on both sides of the inner ring; the other end of the connecting rod is fixedly connected to the side of the rotating ring; thereby, the outer wall of the polyethylene pipe is comprehensively sprayed, cooled and shaped, thereby improving the consistency of the cooling rate of various parts of the polyethylene pipe and improving the product quality of the polyethylene pipe.

[0014] Preferably, a plurality of elastic sheets are fixedly connected around both sides of the outer ring of the inner ring; the side of the elastic sheet away from the inner ring is an elastic convex strip; the side of the elastic sheet away from the inner ring is slidably matched with the inner wall of the ring groove; water leakage between the rotating ring and the ring groove is reduced.

[0015] Preferably, both ends of the cooling and shaping tank are bolted with conical cover cylinders; an annular baffle is fixedly connected to the inner circle of one end of the conical cover cylinder close to the cooling and shaping tank; and the polyethylene tube passes through the middle of the conical cover cylinder and the annular baffle.

[0016] Preferably, an air ring is fixedly connected to the outer circle of one end of the conical cover tube away from the cooling and shaping tank; the air ring is connected to an air pump through an air pipe; a plurality of wide-mouth grooves are arranged around the outer circle of one end of the conical cover tube away from the cooling and shaping tank; an air outlet is fixedly connected to the inner circle of the air ring; the air outlet is located inside the wide-mouth groove; the air outlet is trapezoidal; air outlet holes are arranged on the inclined surfaces on both sides of the air outlet; it not only blocks the water mist inside the cooling and shaping tank from flowing out from the inside of the conical cover tube, but also blows away and cleans the water stains on the outer wall of the polyethylene tube after cooling and shaping.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A polyethylene pipe shaping device according to the present invention comprises a cooling shaping tank, a fixed ring plate, a rotating ring, an arc-shaped supporting plate and a driving assembly; the driving assembly drives the rotating ring to rotate in the middle of the fixed ring plate, driving the arc-shaped supporting plate to rotate; when a pair of arc-shaped supporting plates are respectively located at the top and bottom of the polyethylene pipe, the polyethylene pipe is positioned and clamped so that both sides of the polyethylene pipe are exposed; after a pair of arc-shaped supporting plates are rotated to both sides of the polyethylene pipe, the top and bottom of the polyethylene pipe are exposed; since adjacent arc-shaped supporting plates are staggered, when multiple rotating rings rotate, multiple arc-shaped supporting plates rotate to produce angular dislocation, so that when the polyethylene pipe passes through the cooling shaping tank, the outer side of the polyethylene pipe will not be blocked, so that the cooling rate of each part of the polyethylene pipe remains consistent, the deformation of the polyethylene pipe is reduced, and the product quality of the polyethylene pipe is improved.

[0019] 2. The polyethylene pipe shaping device described in the present invention comprises a fixed frame, a slide plate, a fixed column, an elastic support block, a traction belt, a screw rod, a slider, a face gear, a rotating rod and a second gear; the rotating rod is rotated to drive the second gear to rotate, which drives the face gear to rotate, drives the screw rod to rotate, and drives the slider to slide along the sliding cavity; when the slider slides along the sliding cavity toward away from the arc-shaped support plate, the two ends of the arc-shaped support plate are pulled to bend toward the fixed column, so that the concave arc of the arc-shaped support plate and the elastic support block increases; when the slider slides along the sliding cavity toward approaching the arc-shaped support plate, the two ends of the arc-shaped support plate are reset in the direction away from the fixed column, so that the concave arc of the arc-shaped support plate and the elastic support block decreases; thereby facilitating the positioning of polyethylene pipes of different specifications and reducing the deformation of the polyethylene pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is the internal structure diagram of the cooling and shaping tank in the present invention;

[0023] Figure 3 It is a structural diagram of the positioning unit and the annular cooling unit in the present invention;

[0024] Figure 4 A three-dimensional diagram of the positioning unit in the present invention;

[0025] Figure 5 A structural diagram of the positioning unit in the present invention;

[0026] Figure 6 A three-dimensional diagram of the adjustment assembly of the present invention;

[0027] Figure 7 An exploded view of the regulating assembly of the present invention;

[0028] Figure 8 A cross-sectional view of the adjustment assembly of the present invention;

[0029] Fig. 9 yes Figure 8 A partial enlarged view of the middle part;

[0030] Fig.10 is a three-dimensional diagram of the annular cooling unit in the present invention;

[0031] Fig.11 It is a structural diagram of the annular cooling unit in the present invention;

[0032] Fig.12 is a cross-sectional view of the annular cooling unit of the present invention;

[0033] Fig.13 is a three-dimensional diagram of the elastic sheet of the present invention;

[0034] Fig.14 is a cross-sectional view of the conical cover cylinder of the present invention;

[0035] In the figure: 1, cooling and shaping tank; 2, polyethylene tube; 3, fixed ring plate; 4, rotating ring; 5, arc-shaped support plate; 6, gear ring; 7, notch; 8, top cover; 9, transmission rod; 10, No. 1 gear; 11, motor; 12, pulley; 13, belt; 14, fixed frame; 15, slide; 16, slide plate; 17, fixed column; 18, elastic support block; 19, sleeve rod; 20, traction belt; 21, slide Dynamic cavity; 22. Connecting port; 23. Transmission cavity; 24. Screw rod; 25. Sliding block; 26. Face gear; 27. Rotating rod; 28. Second gear; 29. ​​Ring seat; 30. Nozzle; 31. Diverter pipe; 32. Ring groove; 33. Inner ring; 34. Ring cavity; 35. Connecting rod; 36. Elastic sheet; 37. Conical cover cylinder; 38. Annular baffle; 39. Air ring; 40. Wide-mouth groove; 41. Wind outlet. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] like Figures 1 to 6 As shown, a polyethylene pipe shaping device according to an embodiment of the present invention comprises a cooling shaping tank 1; a polyethylene pipe 2 is passed through the middle of the cooling shaping tank 1; a plurality of positioning units are arranged inside the cooling shaping tank 1, and the positioning units are sleeved on the outer ring of the polyethylene pipe 2; the positioning units comprise a pair of fixed ring plates 3; the pair of fixed ring plates 3 are fixedly connected to the inner wall of the cooling shaping tank 1; a rotating ring 4 is rotatably installed between the pair of fixed ring plates 3; a pair of arc-shaped supporting plates 5 are symmetrically arranged on the inner ring of the rotating ring 4; the angles of the arc-shaped supporting plates 5 of the inner rings of adjacent fixed ring plates 3 are staggered; a driving component is arranged on the top of the cooling shaping tank 1, and the driving component drives the rotating ring 4 to rotate;

[0038] During operation, the formed polyethylene tube 2 is uniformly transported through the cooling and shaping tank 1 for cooling and shaping; the polyethylene tube 2 passes through the middle of the rotating ring 4 inside the cooling and shaping tank 1; the arc surface of the arc support plate 5 contacts the polyethylene tube 2 and does not affect the transportation of the polyethylene tube 2. At the same time, the driving component drives the rotating ring 4 to rotate in the middle of the fixed ring plate 3, driving the arc support plate 5 to rotate; when a pair of arc support plates 5 are respectively located at the top and bottom of the polyethylene tube 2, the polyethylene tube 2 is lifted and positioned so that both sides of the polyethylene tube 2 are exposed; after a pair of arc support plates 5 are rotated to both sides of the polyethylene tube 2, the top and bottom of the polyethylene tube 2 are exposed; due to the staggered arrangement of adjacent arc support plates 5, when multiple rotating rings 4 rotate, multiple arc support plates 5 rotate to produce angular dislocation, so that when the polyethylene tube 2 passes through the cooling and shaping tank 1, the outer side of the polyethylene tube 2 will not be blocked, so that the cooling rate of each part of the polyethylene tube 2 remains consistent, the deformation of the polyethylene tube 2 is reduced, and the product quality of the polyethylene tube 2 is improved.

[0039] like Figures 1 to 5 As shown, the driving assembly includes a gear ring 6; the gear ring 6 is fixedly connected to the middle of the outer ring of the rotating ring 4; a notch 7 is opened on the top of the cooling and shaping tank 1; a top cover 8 is bolted to the top of the cooling and shaping tank 1; the top cover 8 covers the top outer side of the notch 7; a transmission rod 9 is rotatably installed in the middle of the top cover 8; a plurality of No. 1 gears 10 are fixedly connected to the outer ring of the transmission rod 9; the bottom of the No. 1 gear 10 is meshed with the top of the gear ring 6; a motor 11 is fixedly connected to one end of the top of the top cover 8; the rotating shaft of the motor 11 and the end of the transmission rod 9 are fixedly connected with pulleys 12; the outer rings of the two pulleys 12 are provided with belts 13;

[0040] When working, the motor 11 drives the pulley 12 to rotate, and through the transmission of the belt 13 and the pulley 12, drives the transmission rod 9 to rotate, drives the multiple No. 1 gears 10 to rotate, drives the multiple gear rings 6 to rotate synchronously, and provides sufficient power for the rotation of the rotating ring 4 and the arc-shaped support plate 5;

[0041] The notch 7 is sealed and shielded by the top cover 8 , so that the water mist inside the cooling and shaping tank 1 is blocked, thereby improving the working safety of the motor 11 .

[0042] like Figures 4 to 7As shown, the inner ring of the rotating ring 4 is provided with an adjustment component; the adjustment component includes a fixing frame 14; the fixing frame 14 is bolted to the inner ring of the rotating ring 4; a pair of slide grooves 15 are provided on both sides of the fixing frame 14; a slide plate 16 is provided in the middle of the fixing frame 14; both sides of the slide plate 16 are slidably matched with the slide grooves 15, and the slide plate 16 and the slide groove 15 are locked by bolts; a fixing column 17 is fixedly connected to a side of the middle part of the slide plate 16 close to the center of the rotating ring 4; the end of the fixing column 17 away from the slide plate 16 is fixedly connected to the middle part of the convex surface of the arc-shaped support plate 5;

[0043] During operation, the position of the arc-shaped support plate 5 needs to be adjusted according to the outer diameter of the polyethylene tube 2 so that the concave surface of the arc-shaped support plate 5 can cooperate with the polyethylene tube 2; during adjustment, the staff opens the cooling and shaping tank 1, pushes the slide plate 16 to slide along the slide groove 15 of the fixing frame 14, so that the concave surface of the arc-shaped support plate 5 contacts the outer wall of the polyethylene tube 2, and then uses bolts to fix and lock the slide plate 16; thereby facilitating the cooling and shaping of polyethylene tubes 2 of different specifications, and improving the application range of the positioning unit.

[0044] like Figures 5 to 9 As shown, the arc-shaped support plate 5 is elastic; an elastic support block 18 is fixedly connected to the middle of the concave surface of the arc-shaped support plate 5; a traction structure is provided inside the fixing column 17, and the traction structure is used to pull the two ends of the arc-shaped support plate 5;

[0045] The traction structure includes a sleeve rod 19; the sleeve rod 19 is hinged at the middle of both ends of the arc-shaped support plate 5; the outer ring of the sleeve rod 19 is fixedly connected to a traction belt 20; a sliding cavity 21 is provided inside the end of the fixed column 17 close to the arc-shaped support plate 5; both sides of the sliding cavity 21 close to the end of the arc-shaped support plate 5 are provided with connecting ports 22; a transmission cavity 23 is provided inside the end of the fixed column 17 close to the slide plate 16; a screw rod 24 is rotatably installed in the middle of the sliding cavity 21; the end of the screw rod 24 close to the slide plate 16 is rotatably extended into the transmission cavity 23 Inside; a slider 25 is slidably installed inside the sliding cavity 21; the screw rod 24 is threadedly matched with the slider 25; the end of the traction belt 20 away from the sleeve rod 19 is fixedly connected to the slider 25, and the traction belt 20 slides through the connecting port 22; the end of the screw rod 24 close to the transmission cavity 23 is fixedly connected to the face gear 26; a rotating rod 27 is rotatably installed in the middle of the transmission cavity 23, and one end of the rotating rod 27 rotates through the outer wall of the fixed column 17; the outer ring of the rotating rod 27 is fixedly connected to the second gear 28; the second gear 28 is meshed with the face gear 26;

[0046] During operation, the diameters of polyethylene tubes 2 of different specifications are different, which makes it difficult for the arc-shaped support plate 5 to be well matched with the polyethylene tube 2. The concave curvature of the arc-shaped support plate 5 needs to be changed according to the curvature of the outer diameter of the polyethylene tube 2. The staff rotates the rotating rod 27 with a wrench to drive the second gear 28 to rotate, the driving face gear 26 to rotate, the screw rod 24 to rotate, and the driving slider 25 to slide along the sliding cavity 21.

[0047] When the slider 25 slides along the sliding cavity 21 away from the arc-shaped support plate 5, the slider 25 drives the traction belt 20 to pass through the connecting port 22 and enter the interior of the sliding cavity 21, pulling the two ends of the arc-shaped support plate 5 to bend toward the fixed column 17, so that the concave arc of the arc-shaped support plate 5 increases, driving the elastic support block 18 to stretch, so that the concave arc of the elastic support block 18 increases, and can match the polyethylene pipe 2 with an increased outer diameter curvature;

[0048] When the slider 25 slides along the sliding cavity 21 toward the arc-shaped support plate 5, the two ends of the arc-shaped support plate 5 are reset in the direction away from the fixed column 17, driving the traction belt 20 to pass through the connecting port 22 and move out of the interior of the sliding cavity 21, so that the concave arc of the arc-shaped support plate 5 is reduced, so that the elastic support block 18 is reset, so that the concave arc of the elastic support block 18 is reduced, and it can match the polyethylene pipe 2 with a reduced outer diameter curvature;

[0049] This makes it easier to position the polyethylene pipes 2 of different specifications, and reduces the deformation of the polyethylene pipes 2.

[0050] like Figure 1 , Figure 2 , Figure 3 , Fig.10 , Fig.11 and Fig.12 As shown, the interior of the cooling and shaping tank 1 is provided with a plurality of annular cooling units, and the annular cooling units are sleeved on the outer ring of the polyethylene tube 2; the annular cooling units and the positioning units are alternately arranged; the annular cooling units include an annular seat 29; the annular seat 29 is fixedly connected to the inner wall of the cooling and shaping tank 1; a plurality of nozzles 30 are arranged around the inner ring of the annular seat 29; the nozzles 30 are provided with a plurality of strip-shaped water outlets; a shunt pipe 31 is arranged at the bottom of the cooling and shaping tank 1; the nozzles 30 are connected with the shunt pipe 31; the shunt pipe 31 is connected to the water storage tank through a water pump; a wastewater outlet is arranged at the bottom of the cooling and shaping tank 1;

[0051] The inner ring of the ring seat 29 is provided with an annular groove 32; the shunt pipe 31 is connected with the annular groove 32; an inner ring 33 is rotatably installed inside the annular groove 32; a sealing ring is arranged between the inner ring 33 and the annular groove 32; an annular cavity 34 is provided inside the inner ring 33; the annular cavity 34 is connected with the annular groove 32 through a plurality of through holes; the nozzle 30 is threadedly installed on the inner ring of the inner ring 33, and the nozzle 30 is connected with the annular cavity 34; a plurality of connecting rods 35 are fixedly connected with both sides of the inner ring 33; the other end of the connecting rod 35 is fixedly connected with the side surface of the rotating ring 4;

[0052] During operation, the water pump delivers the cooling water in the water tank to the annular groove 32 inside the ring seat 29, and then to the annular cavity 34 inside the inner ring 33. The cooling water is delivered to the nozzle 30 and then sprayed out from the water outlet of the nozzle 30. At the same time, the rotating ring 4 rotates, and is driven by multiple connecting rods 35 to drive the inner ring 33 to rotate along the annular groove 32, and drive multiple nozzles 30 to rotate around the outer ring of the polyethylene tube 2, so that the outer wall of the polyethylene tube 2 is comprehensively sprayed, cooled and shaped, thereby improving the consistency of the cooling rate of each part of the polyethylene tube 2 and improving the product quality of the polyethylene tube 2.

[0053] like Figure 12 to Figure 13 As shown, a plurality of elastic sheets 36 are fixedly connected around the outer ring of the inner ring 33 on both sides; the side of the elastic sheet 36 away from the inner ring 33 is an elastic convex strip; the side of the elastic sheet 36 away from the inner ring 33 is slidably matched with the inner wall of the annular groove 32;

[0054] During operation, the rotating ring 4 rotates, driving the multiple elastic sheets 36 to rotate inside the annular groove 32. The elastic force of the elastic sheets 36 pushes the rotating ring 4 to firmly contact the opening of the annular groove 32, thereby reducing water leakage between the rotating ring 4 and the annular groove 32.

[0055] like Figure 1 , Figure 2 and Fig.14 As shown, both ends of the cooling and shaping tank 1 are bolted with a conical cover 37; the inner circle of the conical cover 37 close to the cooling and shaping tank 1 is fixed with an annular baffle 38; the polyethylene tube 2 passes through the middle of the conical cover 37 and the annular baffle 38;

[0056] An air ring 39 is fixedly connected to the outer ring of the end of the conical cover tube 37 away from the cooling and shaping tank 1; the air ring 39 is connected to the air pump through an air pipe; a plurality of wide-mouthed grooves 40 are formed around the outer ring of the end of the conical cover tube 37 away from the cooling and shaping tank 1; an air outlet 41 is fixedly connected to the inner ring of the air ring 39; the air outlet 41 is located inside the wide-mouthed groove 40; the air outlet 41 is trapezoidal; air outlet holes are formed on the inclined surfaces on both sides of the air outlet 41;

[0057] During operation, when the polyethylene tube 2 passes through the conical cover tube 37 and the annular baffle 38 and enters the cooling and shaping tank 1, the air pump delivers high-pressure gas to the interior of the air ring 39, and then sprays it out from the air outlet of the air outlet head 41, and enters the conical cover tube 37 along the wide-mouth groove 40. The high-speed airflow is guided by the wide-mouth groove 40 and blocked by the polyethylene tube 2, so that the high-speed airflow is diverted between the polyethylene tube 2 and the conical cover tube 37, and the high-speed airflow flows toward the interior of the cooling and shaping tank 1 and the outside of the conical cover tube 37; combined with the blocking of the annular baffle 38, it not only blocks the water mist inside the cooling and shaping tank 1 from flowing out from the inside of the conical cover tube 37, but also blows away the water stains on the outer wall of the polyethylene tube 2 after cooling and shaping.

[0058] Working principle: The diameters of polyethylene tubes 2 of different specifications are different, which makes it difficult for the arc-shaped support plate 5 to cooperate well with the polyethylene tube 2. It is necessary to adjust the position of the arc-shaped support plate 5 and change the concave curvature of the arc-shaped support plate 5 according to the curvature of the outer diameter of the polyethylene tube 2;

[0059] Push the slide plate 16 to slide along the slide groove 15 of the fixing frame 14, so that the concave surface of the arc-shaped support plate 5 is close to the outer wall of the polyethylene tube 2, and then use bolts to fix and lock the slide plate 16; rotate the rotating rod 27 to drive the second gear 28 to rotate, drive the face gear 26 to rotate, drive the screw rod 24 to rotate, and drive the slider 25 to slide along the sliding cavity 21;

[0060] When the slider 25 slides along the sliding cavity 21 away from the arc-shaped support plate 5, the slider 25 drives the traction belt 20 to pass through the connecting port 22 and enter the interior of the sliding cavity 21, pulling the two ends of the arc-shaped support plate 5 to bend toward the fixed column 17, so that the concave arc of the arc-shaped support plate 5 increases, driving the elastic support block 18 to stretch, so that the concave arc of the elastic support block 18 increases, and can match the polyethylene pipe 2 with an increased outer diameter curvature;

[0061] When the slider 25 slides along the sliding cavity 21 toward the arc-shaped support plate 5, the two ends of the arc-shaped support plate 5 are reset in the direction away from the fixed column 17, driving the traction belt 20 to pass through the connecting port 22 and move out of the interior of the sliding cavity 21, so that the concave arc of the arc-shaped support plate 5 is reduced, so that the elastic support block 18 is reset, so that the concave arc of the elastic support block 18 is reduced, and it can match the polyethylene pipe 2 with a reduced outer diameter curvature;

[0062] The polyethylene tube 2 passes through the conical cover cylinder 37 and the annular baffle 38 and enters the cooling and shaping tank 1; the motor 11 drives the pulley 12 to rotate, and through the transmission of the belt 13 and the pulley 12, drives the transmission rod 9 to rotate, drives multiple No. 1 gears 10 to rotate, and drives multiple gear rings 6 to rotate synchronously; drives the arc-shaped support plate 5 to rotate; when a pair of arc-shaped support plates 5 are respectively located at the top and bottom of the polyethylene tube 2, the polyethylene tube 2 is positioned and clamped so that both sides of the polyethylene tube 2 are exposed; after the pair of arc-shaped support plates 5 rotate to both sides of the polyethylene tube 2, the top and bottom of the polyethylene tube 2 are exposed; because the adjacent arc-shaped support plates 5 are staggered, when the multiple rotating rings 4 rotate, the multiple arc-shaped support plates 5 rotate to produce angular dislocation, so that when the polyethylene tube 2 passes through the cooling and shaping tank 1, the outer side of the polyethylene tube 2 will not be blocked;

[0063] The water pump delivers the cooling water in the water storage tank to the annular groove 32 inside the ring seat 29, and then to the annular cavity 34 inside the inner ring 33. The cooling water is delivered to the nozzle 30 and then sprayed out from the water outlet of the nozzle 30. At the same time, the rotating ring 4 rotates, and through the transmission of multiple connecting rods 35, the inner ring 33 is driven to rotate along the annular groove 32, and the multiple nozzles 30 are driven to rotate around the outer ring of the polyethylene tube 2, so that the outer wall of the polyethylene tube 2 is fully sprayed, cooled and shaped, so that the cooling rate of each part of the polyethylene tube 2 is consistent, the deformation of the polyethylene tube 2 is reduced, and the product quality of the polyethylene tube 2 is improved.

[0064] At the same time, the air pump delivers high-pressure gas to the interior of the air ring 39, and then sprays it out from the air outlet of the air outlet head 41, and enters the conical cover tube 37 along the wide-mouth groove 40. The high-speed airflow is guided by the wide-mouth groove 40 and blocked by the polyethylene tube 2, so that the high-speed airflow is diverted between the polyethylene tube 2 and the conical cover tube 37, and the high-speed airflow flows toward the interior of the cooling and shaping tank 1 and the outside of the conical cover tube 37; combined with the blocking of the annular baffle 38, it not only blocks the water mist inside the cooling and shaping tank 1 from flowing out from the inside of the conical cover tube 37, but also blows away the water stains on the outer wall of the polyethylene tube 2 after cooling and shaping.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A polyethylene pipe shaping device, characterized in that: It comprises a cooling and shaping tank (1); a polyethylene tube (2) penetrates the middle of the cooling and shaping tank (1); a plurality of positioning units are arranged inside the cooling and shaping tank (1), and the positioning units are sleeved on the outer ring of the polyethylene tube (2); The positioning unit comprises a pair of fixed ring plates (3); the pair of fixed ring plates (3) are fixedly connected to the inner wall of the cooling and shaping tank (1); a rotating ring (4) is rotatably mounted between the pair of fixed ring plates (3); a pair of arc-shaped supporting plates (5) are symmetrically arranged on the inner ring of the rotating ring (4); the angles of the arc-shaped supporting plates (5) on the inner rings of adjacent fixed ring plates (3) are staggered; a driving component is arranged on the top of the cooling and shaping tank (1), and the driving component drives the rotating ring (4) to rotate; The inner ring of the rotating ring (4) is provided with an adjustment component; the adjustment component includes a fixing frame (14); the fixing frame (14) is bolted to the inner ring of the rotating ring (4); a pair of slide grooves (15) are provided on both sides of the fixing frame (14); a slide plate (16) is provided in the middle of the fixing frame (14); both sides of the slide plate (16) are slidably matched with the slide grooves (15), and the slide plate (16) and the slide grooves (15) are locked by bolts; a fixing column (17) is fixedly connected to a surface of the middle part of the slide plate (16) close to the center of the rotating ring (4); an end of the fixing column (17) away from the slide plate (16) is fixedly connected to the middle part of the convex surface of the arc-shaped support plate (5); The arc-shaped support plate (5) is elastic; an elastic support block (18) is fixedly connected to the middle of the concave surface of the arc-shaped support plate (5); a traction structure is arranged inside the fixing column (17), and the traction structure is used to pull the two ends of the arc-shaped support plate (5); The traction structure comprises a sleeve rod (19); the sleeve rods (19) are hingedly connected to the middle of both ends of the arc-shaped support plate (5); the outer ring of the sleeve rod (19) is fixedly connected to a traction belt (20); a sliding cavity (21) is provided inside the end of the fixed column (17) close to the arc-shaped support plate (5); connecting openings (22) are provided on both sides of the end of the sliding cavity (21) close to the arc-shaped support plate (5); a transmission cavity (23) is provided inside the end of the fixed column (17) close to the slide plate (16); a screw rod (24) is rotatably installed in the middle of the sliding cavity (21); the end of the screw rod (24) close to the slide plate (16) is rotatably extended into the transmission cavity (23) The sliding cavity (21) has a sliding block (25) slidably mounted inside it; the lead screw (24) is threadedly matched with the sliding block (25); the end of the traction belt (20) away from the sleeve rod (19) is fixedly connected to the sliding block (25), and the traction belt (20) slides through the connecting port (22); the end of the lead screw (24) close to the transmission cavity (23) is fixedly connected to a face gear (26); a rotating rod (27) is rotatably mounted in the middle of the transmission cavity (23), and one end of the rotating rod (27) rotates through the outer wall of the fixed column (17); the outer ring of the rotating rod (27) is fixedly connected to a second gear (28); the second gear (28) is meshed with the face gear (26).

2. A polyethylene pipe shaping device according to claim 1, characterized in that: The driving assembly comprises a gear ring (6); the gear ring (6) is fixedly connected to the middle of the outer ring of the rotating ring (4); a notch (7) is opened on the top of the cooling and shaping tank (1); a top cover (8) is bolted to the top of the cooling and shaping tank (1); the top cover (8) covers the top outside of the notch (7); a transmission rod (9) is rotatably mounted in the middle of the top cover (8); a plurality of No. 1 gears (10) are fixedly connected to the outer ring of the transmission rod (9); the bottom of the No. 1 gear (10) is meshed with the top of the gear ring (6); a motor (11) is fixedly connected to one end of the top of the top cover (8); a rotating shaft of the motor (11) and the end of the transmission rod (9) are both fixedly connected to pulleys (12); and the outer rings of the two pulleys (12) are provided with belts (13).

3. A polyethylene pipe shaping device according to claim 1, characterized in that: A plurality of annular cooling units are arranged inside the cooling and shaping tank (1), and the annular cooling units are sleeved on the outer ring of the polyethylene tube (2); the annular cooling units and the positioning units are arranged alternately; The annular cooling unit comprises an annular seat (29); the annular seat (29) is fixedly connected to the inner wall of the cooling and shaping tank (1); a plurality of nozzles (30) are arranged around the inner circle of the annular seat (29); the nozzles (30) are provided with a plurality of strip-shaped water outlets; a shunt pipe (31) is arranged at the bottom of the cooling and shaping tank (1); the nozzles (30) are connected to the shunt pipe (31); the shunt pipe (31) is connected to a water storage tank via a water pump; and a wastewater outlet is arranged at the bottom of the cooling and shaping tank (1).

4. A polyethylene pipe shaping device according to claim 3, characterized in that: The inner ring of the ring seat (29) is provided with an annular groove (32); the flow divider (31) is in communication with the annular groove (32); an inner ring (33) is rotatably mounted inside the annular groove (32); a sealing ring is provided between the inner ring (33) and the annular groove (32); an annular cavity (34) is provided inside the inner ring (33); the annular cavity (34) is in communication with the annular groove (32) via a plurality of through holes; the nozzle (30) is threadedly mounted on the inner ring of the inner ring (33), and the nozzle (30) is in communication with the annular cavity (34); a plurality of connecting rods (35) are fixedly connected to both sides of the inner ring (33); and the other ends of the connecting rods (35) are fixedly connected to the side surfaces of the rotating ring (4).

5. A polyethylene pipe shaping device according to claim 4, characterized in that: A plurality of elastic sheets (36) are fixedly connected around the outer ring of the inner ring (33) on both sides; a side of the elastic sheet (36) away from the inner ring (33) is an elastic convex strip; and a side of the elastic sheet (36) away from the inner ring (33) is slidably matched with the inner wall of the annular groove (32).

6. A polyethylene pipe shaping device according to claim 1, characterized in that: Both ends of the cooling and shaping tank (1) are bolted with conical cover cylinders (37); an annular baffle (38) is fixedly connected to the inner circle of one end of the conical cover cylinder (37) close to the cooling and shaping tank (1); and the polyethylene tube (2) passes through the middle of the conical cover cylinder (37) and the annular baffle (38).

7. A polyethylene pipe shaping device according to claim 6, characterized in that: An air ring (39) is fixedly connected to the outer ring of one end of the conical cover tube (37) away from the cooling and shaping tank (1); the air ring (39) is connected to an air pump through an air pipe; a plurality of wide-mouthed grooves (40) are arranged around the outer ring of one end of the conical cover tube (37) away from the cooling and shaping tank (1); an air outlet (41) is fixedly connected to the inner ring of the air ring (39); the air outlet (41) is located inside the wide-mouthed groove (40); the air outlet (41) is trapezoidal; and air outlet holes are arranged on the inclined surfaces on both sides of the air outlet (41).

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