A cooling and drying apparatus for plastic pipe forming

Abstract

The application discloses a kind of cooling and drying equipment for plastic pipe forming, it is related to plastic pipe forming technical field, to solve the technical problem that cooling and drying equipment is insufficient for internal cooling treatment of pipeline, including telescopic adjusting support frame;The cooling assembly is hingedly arranged on the top of the telescopic adjusting support frame by two jacking supports;Cooling circulating water tank is arranged on the telescopic adjusting support frame;The cooling assembly includes water cooling tank arranged on the top of the jacking support;Wherein, one end of the water cooling tank is provided with spray assembly;The spray assembly is connected with pump delivery end by pipeline.The application is based on the combination of winding device and pump suction principle, forms internal suction cooling treatment in the process of plastic hose extrusion preparation, which effectively improves the cooling treatment effect compared with traditional external cooling treatment, while reducing the plastic inhibition of the inner wall "back stick", ovality and sag caused by the conventional cooling deficiency.

Description

Technical Field

[0001] This invention relates to the field of plastic pipe forming technology, and more specifically, to a cooling and drying device for plastic pipe forming. Background Technology

[0002] In the field of plastic extruded hose manufacturing, the fundamental challenge of traditional cooling technology lies in the inherent defects of its thermodynamic conduction path. Taking precision tubing such as medical catheters and hydraulic hoses as examples, current production processes generally adopt a two-stage cooling mode of "external wall spraying + air cooling." This cooling method exposes three dimensions of technical limitations in the main continuous extrusion process:

[0003] Heat conduction dimension: When molten plastic is extruded from the extruder die, a temperature gradient of 180-220°C is formed across the tube wall cross-section from the inside to the outside. Traditional external cooling methods force heat to penetrate the entire tube wall thickness (typically 0.5-3 mm) to be carried away by the cooling medium. This radial conduction mode leads to two key problems:

[0004] 1. Delayed cooling effect of inner wall: Actual measurement data shows that the time required for the inner wall of a 2mm medical catheter to cool down to 60℃ is 40%-60% longer than that of the outer wall.

[0005] 2. Imbalance in crystallinity distribution: Especially for crystalline materials such as PE and PP, the difference in cooling rates between the inner and outer walls leads to a crystallinity difference of more than 15%.

[0006] In the field of medical catheters, current cooling technologies cause the following clinical problems: 1. Lumen roughness Ra > 0.8 μm (ideally < 0.4 μm). 2. "Lumen memory effect" caused by residual stress. 3. Drug adsorption variation coefficient > 15% caused by uneven cooling.

[0007] In industrial hose applications, the main problems are: 1. Interlayer bond strength fluctuations of up to +20%. 2. Pulse withstand capability reduced by 30-40%. 3. Fatigue life shortened by 25-35%.

[0008] Existing cooling methods for extruded plastic hoses are mostly the same as conventional external cooling, with little attention paid to internal synchronous cooling. Traditional cooling methods cannot effectively meet the needs of existing special extruded hoses. Therefore, we propose a cooling and drying device for plastic pipe forming. Summary of the Invention

[0009] The purpose of this invention is to provide a cooling and drying device for plastic pipe forming, so as to solve the technical problem of insufficient cooling treatment of the inside of the pipe in the cooling and drying device.

[0010] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cooling and drying device for plastic pipe forming, comprising a telescopic adjustable support frame; a cooling assembly is hinged to the top of the telescopic adjustable support frame via two lifting brackets; a cooling circulating water tank is provided on the telescopic adjustable support frame; the cooling assembly includes a water-cooled tank arranged on the top of the lifting brackets; wherein, a spray assembly is provided at one end of the water-cooled tank; the spray assembly is connected to the delivery end of a pump via a pipe, and the input end of the pump is connected to the cooling circulating water tank, and the input end of the cooling circulating water tank is connected to the output end of the cooling circulating water tank; an auxiliary control assembly is provided at one end of the cooling circulating water tank; the... An auxiliary wheel is provided in the middle of the water-cooling tank; an extrusion output assembly is provided at the other end of the water-cooling tank; and an air-cooling assembly is provided on the top of the water-cooling tank, relatively close to the extrusion output assembly; the auxiliary control assembly includes a drive motor arranged on one side of the water-cooling tank; a compression pump mechanism is provided at the output end of the drive motor; a guide traction mechanism is provided above the compression pump mechanism; and an auxiliary adjustment mechanism is provided on the side of the compression pump mechanism relatively away from the drive motor; wherein, the drive motor drives the compression pump mechanism to rotate, and under the guide limit of the auxiliary adjustment mechanism, the compression pump mechanism reciprocates and slides to adjust, forming a structure for pumping refrigerant into the plastic hose.

[0011] This invention combines a winding device with a pump suction principle to form an internal suction cooling treatment during the extrusion process of plastic hoses. This method effectively improves the cooling effect compared to traditional external cooling treatment, while reducing the problems of "re-sticking" of the plastic inner wall, ellipticity, and sagging caused by insufficient conventional cooling.

[0012] Preferably, the water-cooling tank is arranged at an angle, and the end of the water-cooling tank relative to the drive motor is at an angled high end; wherein, the water-cooling tank is arranged in a "T" shape when viewed from above.

[0013] Preferably, the compression pump mechanism includes a bearing shaft A arranged at the output end of the drive motor; the surface of the bearing shaft A is provided with helical bearing blades A; the bearing shaft A has a hollow structure, and a movable groove is formed on the surface of the bearing shaft A; a bearing shaft B passes through the inside of the bearing shaft A; a connecting protrusion is provided on the surface of the bearing shaft B opposite to the movable groove; the bearing shaft B is provided with helical bearing blades B through the connecting protrusion.

[0014] Preferably, the bearing shaft A and the bearing shaft B are axially slidingly connected; meshing gears are provided at opposite ends of the bearing shaft A and the bearing shaft B; the gap between the bearing blade A and the bearing blade B forms a compression adjustment cavity; and the cross-section of the compression adjustment cavity is an elliptical structure.

[0015] Preferably, the bearing shaft B is provided with a peak-valley shaped guide sliding groove connected end to end at the end opposite to the drive motor; the guide sliding groove is composed of a plurality of spiral sliding sub-grooves.

[0016] Preferably, the auxiliary adjustment mechanism includes an auxiliary connecting seat rotatably arranged at the end of the bearing shaft B; the auxiliary connecting seat is elastically connected to the bearing shaft B by a spring, and a force-bearing pin is provided inside the auxiliary connecting seat.

[0017] Preferably, the guiding traction mechanism includes a reciprocating lead screw rotatably arranged above the bearing shaft A; a movable block is sleeved on the surface of the reciprocating lead screw; a guide block is provided inside the movable block; and an auxiliary guide wheel is provided on the movable block, and the movable block is slidably connected by a guide rail.

[0018] Preferably, the extrusion output assembly includes a connecting main shaft sleeve arranged on the inclined lower side of the water-cooling tank; a connecting molding extrusion shaft sleeve is provided on one side of the output end of the connecting main shaft sleeve; a connecting diverter seat is provided on the other end of the connecting main shaft sleeve; and an extrusion input sleeve is provided on one side of the connecting diverter seat.

[0019] Preferably, a forming connecting shaft A and a forming connecting shaft B are provided on both sides of the connecting diverter seat, opposite to the extrusion input sleeve, the connecting main sleeve, and the connecting forming extrusion sleeve; the forming connecting shaft A extends out of the connecting forming extrusion sleeve to form an extension; and the forming connecting shaft A has a processing channel communicating with the connecting diverter seat.

[0020] A method of using a cooling and drying device for plastic pipe forming includes the following steps:

[0021] S100, System Pre-start: The telescopic adjustment support frame tilts the water cooling tank so that its high end is aligned with the extruder outlet; refrigerant is injected into the cooling circulating water tank; the drive motor is started so that the compression pump mechanism can run idle to preheat;

[0022] S200, Hose Connection and Refrigerant Injection: The extruded hose is introduced from the extrusion output component into the water cooling tank; the spray assembly is activated, and the refrigerant is pumped into the hose inlet through the pipeline;

[0023] S300, spiral extrusion and refrigerant drive: The drive motor drives the bearing shaft A to rotate, and the bearing blades A and B alternately extrude the hose; the auxiliary adjustment mechanism controls the axial sliding of the bearing blades B to form a pulsed pumping force; the refrigerant forms a unidirectional flow in the hose.

[0024] S400, Internal cooling stage: The refrigerant flows through the inner wall of the hose and directly carries away the heat; External cooling stage: The air-cooling component assists in cooling the outer wall of the hose; The blower is used to dry the residual gas from the treatment channel to the plastic hose with hot air.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. This invention combines a winding device with a pump suction principle to form an internal suction cooling treatment during the extrusion process of plastic hoses. This method effectively improves the cooling effect compared to traditional external cooling treatment, while reducing the problems of insufficient conventional cooling that cause the plastic to "stick back", ellipticity and sagging.

[0027] 2. The present invention achieves the effect of facilitating the upward discharge of gas from the plastic hose and the natural downward flow of the refrigerant by arranging the water cooling tank at an angle.

[0028] 3. The present invention, through the setting of the compression adjustment cavity, can effectively position, connect and wind the plastic hose. At the same time, the cross-section of the compression adjustment cavity is set as an elliptical structure, which facilitates the winding of the plastic hose and the vertical compression operation on both sides of the plastic hose to form the desired effect of refrigerant suction. Compared with the traditional external cooling method, the functionality of this cooling and drying equipment is increased.

[0029] 4. The present invention uses a guide sliding groove with peaks and valleys connected end to end and the guide sliding groove is arranged in a spiral shape. It is combined with the auxiliary connecting seat and elastically connected to the bearing shaft B by a spring to form a reciprocating extrusion operation. This causes the compression pump feeding mechanism to make the bearing blade B reciprocate axially during the rotation and winding process, thus forming the power setting required for the extrusion operation.

[0030] 5. The present invention forms a double-layer conveying cavity based on the connection and diversion seat. This configuration allows for independent extrusion conveying of the plastic hose and enables the internal flow channels of the basic formed hose to flow to the outside, maintaining the smooth flow of the internal refrigerant.

[0031] 6. This invention uses guide blocks and reciprocating screws to drive different rotations, causing auxiliary guide wheels to slide back and forth along the guide rail, thereby assisting in the arrangement of plastic extruded hoses and pipes and improving the positioning and installation effect of pipes. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall side structure of the present invention.

[0033] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0034] Figure 3 This is a schematic diagram of the internal structure of the compression pump mechanism of the present invention.

[0035] Figure 4 This is a three-dimensional structural diagram of the auxiliary adjustment mechanism of the present invention.

[0036] Figure 5 This is a schematic diagram of the internal structure of the compression pump mechanism of the present invention.

[0037] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0038] Figure 7 For the present invention Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0039] Figure 8 This is a cross-sectional three-dimensional structural diagram of the extrusion output component of the present invention.

[0040] Figure 9 This is a three-dimensional structural diagram of the extrusion output component of the present invention from another perspective.

[0041] Figure 10 This is a schematic diagram of the extrusion operation structure of the plastic extruded hose by the bearing blade A and bearing blade B being relatively close together.

[0042] Explanation of the labels in the diagram:

[0043] 1. Telescopic adjustable support frame; 2. Lifting bracket; 3. Cooling assembly; 4. Cooling circulating water tank; 5. Water cooling tank; 6. Spray assembly; 10. Air cooling assembly; 12. Compression pump mechanism; 1201. Bearing shaft A; 1202. Bearing blade A; 1203. Movable groove; 1204. Bearing shaft B; 12041. Connecting protrusion; 12042. Guide sliding groove; 1205. Bearing blade B; 1207. Meshing gear; 7. Auxiliary control assembly; 11. Drive motor; 3. Guide traction mechanism; 1301. Reciprocating lead screw; 1302. Moving block; 1303. Guide rail; 1304. Auxiliary guide wheel; 14. Auxiliary adjustment mechanism; 1401. Auxiliary connecting seat; 1402. Force-bearing pin; 8. Auxiliary wheel; 9. Extrusion output assembly; 901. Connecting main shaft sleeve; 902. Connecting molding extrusion shaft sleeve; 903. Connecting diverter seat; 904. Extrusion input sleeve; 905. Molding connecting shaft A; 906. Molding connecting shaft B; 907. Processing channel. Detailed Implementation

[0044] like Figures 1 to 10As shown, the present invention relates to a cooling and drying device for plastic pipe forming, comprising a telescopic adjustable support frame 1; a cooling assembly 3 is hinged to the top of the telescopic adjustable support frame 1 via two lifting brackets 2; a cooling circulating water tank 4 is provided on the telescopic adjustable support frame 1; the cooling assembly 3 includes a water-cooled tank 5 arranged on the top of the lifting brackets 2; wherein, a spray assembly 6 is provided at one end of the water-cooled tank 5; the spray assembly 6 is connected to the delivery end of a pump via a pipe, and the input end of the pump is connected to the cooling circulating water tank 4, and the input end of the cooling circulating water tank 4 is connected to the output end of the cooling circulating water tank 4; an auxiliary control assembly 7 is provided at one end of the cooling circulating water tank 4; an auxiliary wheel 8 is provided in the middle of the water-cooled tank 5; An extrusion output component 9 is provided at the other end of the water-cooling tank 5; and an air-cooling component 10 is provided on the top of the water-cooling tank 5 on the side relatively close to the extrusion output component 9; the auxiliary control component 7 includes a drive motor 11 arranged on one side of the water-cooling tank 5; a compression pumping mechanism 12 is provided at the output end of the drive motor 11; a guide traction mechanism 13 is provided above the compression pumping mechanism 12; an auxiliary adjustment mechanism 14 is provided on the side of the compression pumping mechanism 12 relatively away from the drive motor 11; wherein, the drive motor 11 drives the compression pumping mechanism 12 to rotate under the guide limit of the auxiliary adjustment mechanism 14, causing the compression pumping mechanism 12 to slide and adjust back and forth, forming a pumping refrigerant delivery structure for the inside of the plastic hose. This invention is based on combining a winding device with a pumping suction principle to form an internal suction cooling treatment during the extrusion preparation of plastic hoses. This method effectively improves the cooling effect compared to traditional external cooling treatment, while reducing the "re-adhesion," ellipticity, and sagging of the plastic inner wall caused by insufficient conventional cooling.

[0045] In an embodiment of the present invention, the water-cooling tank 5 is arranged at an angle, and the end of the water-cooling tank 5 relative to the drive motor 11 is at an angled high end; wherein, the water-cooling tank 5 is arranged in a "T" shape when viewed from above. The present invention achieves the effect of facilitating the upward discharge of gas in the plastic hose and allowing the refrigerant to flow naturally downward through the angled arrangement of the water-cooling tank 5.

[0046] In an embodiment of the present invention, the compression pump mechanism 12 includes a bearing shaft A1201 arranged at the output end of the drive motor 11; the surface of the bearing shaft A1201 is provided with helical bearing blades A1202; the bearing shaft A1201 has a hollow structure, and the surface of the bearing shaft A1201 is provided with a movable groove 1203; a bearing shaft B1204 passes through the bearing shaft A1201; the surface of the bearing shaft B1204 is provided with a connecting protrusion 12041 opposite to the movable groove 1203; the bearing shaft B1204 is provided with helical bearing blades B1205 through the connecting protrusion 12041.

[0047] In an embodiment of the present invention, the bearing shaft A1201 and the bearing shaft B1204 are axially slidingly connected; each of the bearing shafts A1201 and B1204 is provided with a meshing gear 1207 at its opposite ends; the gap between the bearing blades A1202 and B1205 forms a compression adjustment cavity; and the cross-section of the compression adjustment cavity is elliptical. The present invention, through the compression adjustment cavity, can effectively perform positioning, docking, and winding operations on plastic hoses. Simultaneously, the elliptical cross-section of the compression adjustment cavity facilitates the winding of the plastic hoses and the vertical compression of the plastic hoses on both sides, achieving the desired refrigerant suction effect; compared to traditional external cooling methods, this increases the functionality of the cooling and drying equipment.

[0048] In an embodiment of the present invention, the bearing shaft B1204 is provided with a peak-valley shaped guide sliding groove 12042 connected end to end at the end away from the drive motor 11; the guide sliding groove 12042 is composed of a plurality of spiral sliding sub-grooves.

[0049] In an embodiment of the present invention, the auxiliary adjustment mechanism 14 includes an auxiliary connecting seat 1401 rotatably arranged at the end of the bearing shaft B1204; the auxiliary connecting seat 1401 is elastically connected to the bearing shaft B1204 via a spring, and a force-bearing pin 1402 is provided inside the auxiliary connecting seat 1401. The present invention utilizes a peak-and-valley shaped guide sliding groove 12042 connected end-to-end and arranged in a spiral shape, which, in conjunction with the auxiliary connecting seat 1401 elastically connected to the bearing shaft B1204 via a spring, forms a reciprocating compression operation. This causes the compression pump mechanism 12 to reciprocate axially move the bearing blade B1205 during the rotational winding process, thus providing the power required for the compression operation.

[0050] In an embodiment of the present invention, the guiding traction mechanism 13 includes a reciprocating lead screw 1301 rotatably arranged above the bearing shaft A1201; a movable block 1302 is sleeved on the surface of the reciprocating lead screw 1301; a guide block is provided inside the movable block 1302; and an auxiliary guide wheel 1304 is provided on the movable block 1302, and the movable block 1302 is slidably connected by a guide rail 1303. The present invention, through the guide block setting and the different rotational drives of the reciprocating lead screw 1301, causes the auxiliary guide wheel 1304 to reciprocate and slide along the guide rail 1303, thereby achieving auxiliary arrangement of the plastic extruded hose pipe and improving the effect of pipe positioning and installation.

[0051] In an embodiment of the present invention, the extrusion output assembly 9 includes a connecting main shaft sleeve 901 arranged on the inclined lower side of the water cooling tank 5; a connecting molding extrusion shaft sleeve 902 is provided on one side of the output end of the connecting main shaft sleeve 901; a connecting diverter seat 903 is provided on the other end of the connecting main shaft sleeve 901; and an extrusion input sleeve 904 is provided on one side of the connecting diverter seat 903.

[0052] In an embodiment of the present invention, forming connecting shafts A905 and B906 are provided on both sides of the connecting diverter seat 903, opposite to the extrusion input sleeve 904, the connecting main sleeve 901, and the connecting forming extrusion sleeve 902. The forming connecting shaft A905 extends out of the connecting forming extrusion sleeve 902 to form an extension. Furthermore, the forming connecting shaft A905 has a processing channel 907 communicating with the connecting diverter seat 903. Based on the connecting diverter seat 903, the present invention forms a double-layer conveying cavity. This configuration allows for independent extrusion conveying of the plastic hose and ensures that the internal flow channels of the basically formed hose can circulate to the outside, maintaining the smooth flow of the internal refrigerant.

[0053] Working principle: This embodiment provides a cooling and drying device for plastic pipe forming. Usage steps:

[0054] S100, System Pre-start: Telescopic adjustment support frame 1 tilts water cooling tank 5 so that the high end is aligned with the extruder outlet; injects refrigerant (such as water / ethylene glycol solution) into cooling circulating water tank 4; starts drive motor 11 to make compression pump mechanism 12 idle and preheat.

[0055] S200, Hose Connection and Refrigerant Injection: The extruded hose is introduced from the extrusion output component 9 into the water cooling tank 5; the spray component 6 is activated, and the refrigerant is pumped into the hose inlet through the pipeline;

[0056] S300, spiral extrusion and refrigerant drive: The drive motor 11 drives the bearing shaft A1201 to rotate, and the bearing blades A1202 and B1205 alternately extrude the hose; the auxiliary adjustment mechanism 14 controls the axial sliding of the bearing blades B1205 to form a pulsed pumping force; the refrigerant forms a unidirectional flow in the hose.

[0057] S400, Internal cooling stage: The refrigerant flows through the inner wall of the hose and directly carries away the heat; External cooling stage: The air-cooling component 10 assists in cooling the outer wall of the pipe; The blower is used to dry the residual gas from the treatment channel 907 to the plastic hose with hot air.

[0058] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A cooling and drying apparatus for the shaping of plastic pipes, characterized in that, Including telescopic adjustment support frame (1), the top of telescopic adjustment support frame (1) is hingedly provided with cooling assembly (3) through two jacking support (2); Telescopic adjustment support frame (1) is provided with cooling circulating water tank (4); Cooling assembly (3) includes water cooling tank (5) arranged at the top of jacking support (2); Wherein, the water cooling tank (5) is provided with a spray assembly (6) at one end, the spray assembly (6) is connected with the delivery end of pump through pipeline, and the input end of pump is connected with the cooling circulating water tank (4), and the input end of the cooling circulating water tank (4) is connected with the output end of the cooling circulating water tank (4); The cooling circulating water tank (4) is provided with an auxiliary control assembly (7) at one end; The water cooling tank (5) is provided with an auxiliary wheel (8) at the middle end, and the other end of the water cooling tank (5) is provided with an extrusion output assembly (9); And, the top of the water cooling tank (5) is provided with an air cooling assembly (10) on the side close to the extrusion output assembly (9); The auxiliary control assembly (7) includes a drive motor (11) arranged on one side of the water cooling tank (5), the output end of the drive motor (11) is provided with a compression pump mechanism (12), the compression pump mechanism (12) is provided with a guide traction mechanism (13) above, and the compression pump mechanism (12) is provided with an auxiliary adjusting mechanism (14) on the side away from the drive motor (11); Wherein, the drive motor (11) drives the compression pump mechanism (12) to rotate under the guidance and limiting of the auxiliary adjusting mechanism (14), so that the compression pump mechanism (12) reciprocatingly slides and adjusts, forming a pump delivery structure for the refrigerant in the plastic hose; The compression pump mechanism (12) includes a bearing shaft A (1201) arranged at the output end of the drive motor (11), and the surface of the bearing shaft A (1201) is provided with bearing blades A (1202) in spiral shape; The bearing shaft A (1201) is in hollow structure, and the surface of the bearing shaft A (1201) is provided with a movable groove (1203); The bearing shaft A (1201) is provided with a bearing shaft B (1204) inside, the surface of the bearing shaft B (1204) is provided with a connecting protrusion (12041) at the position of the movable groove (1203), and the bearing shaft B (1204) is provided with bearing blades B (1205) in spiral shape through the connecting protrusion (12041); The bearing shaft A (1201) and the bearing shaft B (1204) are axially connected; The distal ends of the bearing shaft A (1201) and the bearing shaft B (1204) are provided with meshing gears (1207); The gap between the bearing blades A (1202) and the bearing blades B (1205) constitutes a compression adjusting cavity, and the cross section of the compression adjusting cavity is an elliptical structure; The bearing shaft B (1204) is provided with a peak-valley-shaped guiding sliding groove (12042) at one end away from the driving motor (11); the guiding sliding groove (12042) is composed of a plurality of spiral sliding sub-grooves; The auxiliary adjusting mechanism (14) comprises an auxiliary connecting seat (1401) rotatably arranged at the end of the bearing shaft B (1204); the auxiliary connecting seat (1401) is elastically connected to the bearing shaft B (1204) through a spring, and a stress pin (1402) is arranged in the auxiliary connecting seat (1401); The peak-valley-shaped guiding sliding groove (12042) and the spiral guiding sliding groove (12042) are arranged in series, and the auxiliary connecting seat (1401) is elastically connected to the bearing shaft B (1204) through a spring, so as to form a reciprocating extrusion operation, so that the compression pump feeding mechanism (12) makes the bearing blade B (1205) move axially reciprocatingly during the rotating winding process.

2. A cooling and drying apparatus for use in the forming of plastic pipe according to claim 1, wherein The water cooling tank (5) is arranged obliquely, and the water cooling tank (5) is obliquely high at one end relative to the driving motor (11); The water cooling tank (5) is arranged in a "T" shape when viewed from above.

3. A cooling and drying apparatus for use in the shaping of plastic pipes according to claim 2, characterized in that The guiding traction mechanism (13) comprises a reciprocating screw rod (1301) rotatably arranged above the bearing shaft A (1201); the reciprocating screw rod (1301) is sleeved with a movable block (1302); the movable block (1302) is provided with a guide block; the movable block (1302) is provided with an auxiliary guide wheel (1304), and the movable block (1302) is slidably connected through a guide rail (1303).

4. A cooling and drying apparatus for use in the forming of plastic pipe according to claim 3, wherein The extrusion output assembly (9) comprises a connecting main shaft sleeve (901) arranged at one side of the obliquely low end of the water cooling tank (5); a connecting forming extrusion sleeve (902) is arranged at one side of the output end of the connecting main shaft sleeve (901); a connecting shunt seat (903) is arranged at the other end of the connecting main shaft sleeve (901); and an extrusion input sleeve (904) is arranged at one side of the connecting shunt seat (903).

5. A cooling and drying apparatus for use in the shaping of plastic pipes according to claim 4, characterized in that The connecting shunt seat (903) is provided with a forming connecting shaft A (905) and a forming connecting shaft B (906) inside the extrusion input sleeve (904), the connecting main shaft sleeve (901), and the connecting forming extrusion sleeve (902) on both sides thereof; The forming connecting shaft A (905) extends out of the connecting forming extrusion sleeve (902) to form an extension; The forming connecting shaft A (905) is provided with a treatment hole (907) in communication with the connecting shunt seat (903).

6. A method of using a cooling and drying apparatus for plastic pipe forming, which is suitable for use in a cooling and drying apparatus for plastic pipe forming as claimed in claim 5, characterized in that, The steps include: S100, system pre-start: the telescopic adjusting support frame (1) aligns the obliquely high end of the water cooling tank (5) with the extruder outlet; the cooling circulating water tank (4) is injected with refrigerant; and the driving motor (11) is started to make the compression pump feeding mechanism (12) idle and preheat. S200, hose access and refrigerant injection: the extruded hose is introduced into the water cooling tank (5) from the extrusion output assembly (9); the spray assembly (6) is started, and the refrigerant is pumped into the hose inlet through the pipeline; S300, spiral extrusion and refrigerant driving: the driving motor (11) drives the bearing shaft A (1201) to rotate, and the bearing blade A (1202) and the bearing blade B (1205) alternately extrude the hose; the auxiliary adjusting mechanism (14) controls the axial sliding of the bearing blade B (1205) to form a pulse type pumping force; the refrigerant forms a unidirectional flow in the hose; S400, internal cooling stage: the refrigerant flows through the inner wall of the hose to directly take away the heat; in the external cooling stage, the air cooling assembly (10) assists in cooling the outer wall of the pipe; the residual gas is blown from the treatment hole (907) to the plastic hose through the air blower for hot air drying treatment.

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