Efficient cooling device for plastic pipe production

Abstract

The utility model belongs to the technical field of cooling equipment for plastic pipe production, and particularly relates to an efficient cooling device for plastic pipe production, the device comprises a box body, a plastic pipe cooling assembly and a cooling synergistic assembly, avoiding holes for allowing a plastic pipe to pass through the box body are symmetrically formed in the two opposite sides of the box body, and the plastic pipe cooling assembly comprises an annular pipe and a water conveying hose; the annular pipe and the receding hole are concentric and arranged in the box body, the annular pipe communicates with one end of the water conveying hose, and a plurality of water spraying openings are evenly distributed in the inner side of the annular pipe in the circumferential direction; the cooling synergistic assembly comprises a moving block and a driving mechanism, the moving block is connected with the end, close to the annular pipe, of the annular pipe or the water conveying hose, the driving mechanism is arranged on one side of the box body, the driving mechanism is in transmission connection with the moving block, and the driving mechanism is used for driving the moving block to drive the annular pipe to move in the axial direction of the receding hole. And in the moving process of the annular pipe, 360-degree full-coverage cooling is conducted on the side face of the plastic pipe, and the problems that circumferential cooling of the plastic pipe is uneven, and the cooling efficiency is reduced due to increase of the pipe diameter of the plastic pipe are solved.

Description

Technical Field

[0001] The present application belongs to the technical field of cooling equipment for plastic pipe production, and specifically relates to a high-efficiency cooling device for plastic pipe production. Background Art

[0002] As an important component of chemical building materials, plastic pipes are widely accepted by users for their superior performance, hygiene, environmental protection, low consumption and other advantages. Plastic pipes mainly include UPVC drainage pipes, UPVC water supply pipes, aluminum-plastic composite pipes, polyethylene (PE) water supply pipes, and polypropylene PPR hot water pipes. During the production of plastic pipes, cooling water is required to cool the surface of the pipes so that the plastic pipes can be hardened and formed.

[0003] In the prior art, a Chinese utility model with publication number CN206983079U discloses a cooling device for PE pipe production, which is used to cool and shape plastic pipes during the production process of plastic pipes. The device includes a water storage tank, a refrigerator is provided inside the water storage tank, a circulating pump is provided on one side of the refrigerator, a water pipe is connected to the output end of the circulating pump, a cooling cylinder is connected above the water storage tank, ventilation boxes are provided on both sides of the cooling cylinder, a heat dissipation fan is provided on one side of the ventilation box, a graphite heat conduction plate is provided on the inner wall of the cooling cylinder, a water inlet is provided above the cooling cylinder, and the lower end of the water inlet is connected to a water layer. The device extracts water from the water storage tank to the water layer and the nozzle through the circulating pump, and the water in the water layer flows out from the top of the cooling cylinder through the water outlet to cool the top of the PE pipe, and the nozzles on both sides can cool the two sides of the PE pipe, and the graphite heat conduction plate absorbs the heat inside the PE pipe and the cooling cylinder and conducts it to the water flow, and the water flows along the cooling cylinder into the return water port, and the refrigerator in the water storage tank cools the refluxed hot water. Although the device can cool plastic pipes to a certain extent, its cooling method through top spraying and partial side spraying can easily lead to uneven circumferential cooling of the plastic pipes. Moreover, since the side cooling nozzles are dispersed and limited in number, the larger the diameter of the plastic pipe to be cooled, the lower the cooling efficiency, resulting in lower plastic pipe production efficiency. Summary of the invention

[0004] Based on the above background technology needs, the present application provides a high-efficiency cooling device for plastic pipe production to solve the problem that the prior art easily leads to uneven circumferential cooling of the plastic pipe; and the efficiency of cooling the plastic pipe gradually decreases as the diameter of the plastic pipe increases.

[0005] In order to achieve the above purpose, the technical solution of this application is:

[0006] A high-efficiency cooling device for plastic pipe production, comprising a box body, a plastic pipe cooling assembly and a cooling efficiency enhancement assembly, wherein the box body is symmetrically provided with avoidance holes on two opposite sides, and the avoidance holes are used to allow the plastic pipe to pass through the box body; the plastic pipe cooling assembly comprises an annular pipe and a water hose, the annular pipe is arranged in the box body, and the annular pipe is concentrically arranged with the avoidance hole, the annular pipe is connected with one end of the water hose, and the annular pipe is provided with a plurality of water spraying ports, the plurality of water spraying ports are uniformly distributed along the circumference of the inner side of the annular pipe, and the water hose is used to transport cooling water into the annular pipe; the cooling efficiency enhancement assembly comprises a moving block and a driving mechanism, the moving block is connected to the annular pipe or one end of the water hose adjacent to the annular pipe, the driving mechanism is arranged on one side of the box body, and the driving mechanism is transmission-connected to the moving block, and the driving mechanism is used to drive the moving block to drive the annular pipe to move axially along the avoidance hole.

[0007] Preferably, the driving mechanism includes a motor and a threaded conveying rod, a avoidance groove is opened on one side of the box body along the axial direction of the avoidance hole, the motor is arranged at one end of the avoidance groove, and the driving shaft of the motor is transmission-connected to the threaded conveying rod, a screw hole is penetrated by the surface of the moving block, the moving block is matched and connected to the threaded conveying rod through the screw hole, and the moving block is slidably connected to the avoidance groove, and the threaded conveying rod is used to drive the moving block to move along the extension direction of the avoidance groove.

[0008] Preferably, the number of the plastic tube cooling assembly and the number of the moving blocks are both greater than one.

[0009] Preferably, the number of the plastic tube cooling assembly and the number of the moving blocks are both two, and the first conveying thread and the second conveying thread are respectively arranged from the midpoint to the two ends of the threaded conveying rod, the first conveying thread and the second conveying thread have opposite rotation directions, and the two moving blocks are respectively cooperated and connected with the first conveying thread and the second conveying thread.

[0010] Preferably, the plastic tube cooling assembly further comprises a water supply pipe, a booster pump and a three-way joint, the water supply pipe is connected to the water inlet of the booster pump, and one end of the water delivery hose away from the annular tube is connected to the water outlet of the booster pump through the interface of the three-way joint.

[0011] Preferably, the length of the threaded conveying rod is not less than the length of the avoidance groove.

[0012] Preferably, a drain outlet is provided at the bottom of the box body.

[0013] Preferably, the bottom surface of the box body is provided with an inclined slope, and the drain outlet is located at the lowest point of the bottom surface of the box body.

[0014] By adopting the above technical solution, compared with the prior art, the present application has at least the following beneficial effects:

[0015] The cooling water is input into the annular tube through the water delivery hose and sprayed out from the water spray port, so as to perform 360° full coverage flushing and cooling on the side of a section of the plastic tube extending into the box body, so that the circumferential cooling of the plastic tube is more uniform; the driving mechanism drives the moving block to drive the annular tube to move in an orderly manner along the extension direction of the plastic tube, which can improve the cooling efficiency of the plastic tube, and the plurality of water spray ports distributed in a ring shape on the inner side of the annular tube can maximize the cooling effect, effectively reduce the influence of the change of the diameter of the plastic tube on the cooling efficiency of the high-efficiency cooling device for plastic tube production, so that its cooling efficiency can meet the production requirements of plastic tubes with more diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of a high-efficiency cooling device for plastic pipe production in the embodiment.

[0017] Figure 2 It is a partial schematic diagram of the plastic tube cooling assembly in the embodiment.

[0018] In the figure: box body 10, avoidance hole 11, avoidance groove 12, drain outlet 13, plastic pipe cooling assembly 20, annular pipe 21, water spray outlet 211, water delivery hose 22, water supply pipe 23, booster pump 24, three-way joint 25, cooling efficiency enhancement assembly 30, moving block 31, screw hole 311, motor 32, threaded conveying rod 33, first conveying thread 331, second conveying thread 332. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The technical solution of the present application will be further described below in conjunction with the drawings of the embodiments of the present application, and the present application is not limited to the following specific implementation methods.

[0020] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present application, it should be understood that if there are terms such as "upper", "lower", "inner", "outer", "left", "right", "front", "rear", "top", "bottom" and the like indicating directions or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the structure or component referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present patent, and for those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0021] The following is combined with Figure 1 To Attachment Figure 2 And specific embodiments further describe the present application in detail.

[0022] In the present application, a high-efficiency cooling device for plastic pipe production is disclosed, the device comprises a box body 10, a plastic pipe cooling assembly 20 and a cooling efficiency enhancement assembly 30, wherein the box body 10 is symmetrically provided with avoidance holes 11 on opposite sides, the avoidance holes 11 are used to allow the plastic pipe to be cooled to pass through the internal space of the box body 10; the plastic pipe cooling assembly 20 comprises an annular tube 21 with high hardness and a water delivery hose 22 with high extensibility and flexibility, the annular tube 21 is arranged in the box body 10, and is arranged concentrically with the avoidance hole 11, an interface is provided on the outside of the annular tube 21, and the interface is connected to the water delivery hose 22 by means of thermoplastic sealing or sealed plugging. One end of the tube 22 is connected, and a plurality of water spray outlets 211 are arranged on the annular tube 21, and the plurality of water spray outlets 211 are evenly distributed along the inner circumference of the annular tube 21, and the water supply hose 22 is used to introduce cooling water outside the box body 10 into the annular tube 21; the cooling efficiency enhancement component 30 includes a moving block 31 and a driving mechanism, the moving block 31 is connected to the annular tube 21 or one end of the water supply hose 22 adjacent to the annular tube 21, the driving mechanism is arranged on one side of the box body 10, and the driving mechanism is connected to the moving block 31 in transmission, and the driving mechanism is used to drive the moving block 31 to drive the annular tube 21 to move axially along the avoidance hole 11.

[0023] Specifically, in order to enable the box body 10 to adapt to the plastic pipes of standard diameter produced, the above-mentioned avoidance hole 11 is circular, and the space inside the box body for passing the plastic pipe is cylindrical, and the direction of its height line extends axially along the above-mentioned avoidance hole 11; by punching holes or grooving on the top of the box body 10, one end of the water hose 22 can be connected to the annular pipe 21 arranged inside the box body 10, and in order to enable the annular pipe 21 to move along the space inside the box body, the moving block 31 is fixedly connected to the moving block 31 by means of snap-fitting, perforating and sealing plug-in or by providing a pipe quick connector on the surface of the moving block 31, etc.; the driving mechanism is a device with a directional driving function, including a common electric or pneumatic telescopic rod, etc., which can support the moving block 31 to move back and forth between the above-mentioned two avoidance holes 11.

[0024] When using the above-mentioned efficient cooling device for plastic pipe production, the plastic pipe is extended into the interior of the box body 10 from any of the above-mentioned avoidance holes 11 along its axial direction. During this process, the plastic pipe will pass through the axis of the annular tube 21; cooling water is input into the annular tube 21 through the water supply hose 22 and sprayed out from the water spray port 211, and the side of the plastic pipe is fully covered and flushed and cooled 360° to avoid the problem of uneven cooling of the plastic pipe circumference; at the same time, the driving mechanism drives the moving block 31 to drive the annular tube 21 to move in an orderly manner along the extension direction of the plastic pipe, so that a section of the plastic pipe extending into the box body 10 can be quickly cooled; when the diameter of the plastic pipe to be cooled increases, it is only necessary to match it with the above-mentioned efficient cooling device with a larger avoidance hole 11 diameter and a larger inner diameter of the annular tube 21, or the avoidance hole 11 diameter and the inner diameter of the annular tube 21 of the same efficient cooling device for plastic pipe production can simultaneously meet the plastic pipe with an increased diameter within a certain range, and at the same time, the water spray ports 211 on the annular tube 21 are arranged more closely to reduce the influence of the increase in the diameter of the plastic pipe on the cooling efficiency of the efficient cooling device for plastic pipe production.

[0025] The use of the above-mentioned high-efficiency cooling device for plastic pipe production can achieve at least the following technical effects:

[0026] The cooling water is input into the annular tube 21 through the water supply hose 22 and sprayed out from the water spray port 211, so as to perform 360° full coverage flushing and cooling on the side of a section of the plastic tube extending into the box body 10, so that the circumferential cooling of the plastic tube is more uniform; the driving mechanism drives the moving block 31 to drive the annular tube 21 to move in an orderly manner along the extension direction of the plastic tube, which can improve the cooling efficiency of the plastic tube, and the plurality of water spray ports 211 distributed in an annular shape on the inner side of the annular tube 21 can maximize the cooling effect, effectively reduce the influence of the change of the diameter of the plastic tube on the cooling efficiency of the high-efficiency cooling device for the production of plastic tubes, so that its cooling efficiency can meet the production requirements of plastic tubes with more diameters.

[0027] In addition, the present application also provides some more specific implementation methods to improve the above-mentioned efficient cooling device for plastic pipe production.

[0028] Furthermore, in order to enable the annular tube 21 to remain relatively stable during movement and avoid the difference in cooling effect caused by shaking, the above-mentioned driving mechanism includes a motor 32 and a threaded conveying rod 33. A avoidance groove 12 is axially opened on one side of the box body 10 along the avoidance hole 11. The motor 32 is arranged at one end of the avoidance groove 12, and the driving shaft of the motor 32 is transmission-connected to the threaded conveying rod 33. A screw hole 311 is penetrated on the surface of the above-mentioned moving block 31. The moving block 31 is connected to the threaded conveying rod 33 through the screw hole 311, and at least a part of the moving block 31 is slidably connected to the avoidance groove 12.

[0029] Specifically, the avoidance groove 12 is opened at the top of the box body 10 in the direction extending along the length of its internal space, and side panels are respectively installed at both ends of the avoidance groove 12. The motor 32 is a stepper motor 32 with adjustable driving direction and speed. The stepper motor 32 is located at one end of the avoidance groove 12 and is fixed to the top of the box body 10. The driving shaft of the stepper motor 32 is connected to the threaded conveying rod 33 through a coupling in the horizontal direction, and the threaded conveying rod 33 passes through the above-mentioned two side panels in the horizontal direction and is rotatably connected to the side panels through bearings. The side panels can ensure that the threaded conveying rod 33 extends in the horizontal direction; a screw hole 311 is penetrated and provided on the surface of the moving block 31, which deviates from the connection between the above-mentioned water hose 22 and the annular tube 21, and the screw hole 311 is matched with the thread on the surface of the threaded conveying rod 33; the bottom surface of the moving block 31 extends downward into the avoidance groove 12, and the front and rear sides of the moving block 31 are in sliding contact with the avoidance groove 12.

[0030] When using the above-mentioned high-efficiency cooling device for plastic pipe production, the above-mentioned motor 32 is started to drive the threaded conveying rod 33 to rotate. The moving block 31 is constrained by the avoidance groove 12 and does not rotate around the threaded conveying rod 33 in the circumferential direction, but is pushed by the threaded conveying rod 33 along the extension direction of the avoidance groove 12. By adjusting the driving direction of the motor 32, the threaded conveying rod 33 can be rotated forward or reversed, that is, the moving block 31 drives the annular tube 21 to reciprocate along the plastic pipe in the box 10. The annular tube 21 can move stably under the action of the above-mentioned structure, so that the water flow is sprayed evenly and stably to the side of the plastic pipe.

[0031] Furthermore, in order to improve the cooling efficiency, the number of the plastic pipe cooling assembly 20 and the moving block 31 is greater than one.

[0032] Specifically, when a section of plastic pipe is fed into the box 10, the motor 32 drives multiple annular pipes 21 to cool the surface of the plastic pipe. Under the simultaneous cooling effect of multiple annular pipes 21, the moving time of the moving block 31 moving between the two ends of the plastic pipe is reduced when there is only one annular pipe 21, and the cooling efficiency is improved.

[0033] Furthermore, under the premise of ensuring that the cooling efficiency is not reduced, in order to avoid the problem of water waste caused by too many plastic tube cooling components 20, the number of the above-mentioned plastic tube cooling components and moving blocks 31 is preferably two, and the first conveying thread 331 and the second conveying thread 332 are respectively provided from the midpoint to the two ends of the above-mentioned threaded conveying rod 33, and the rotation directions of the first conveying thread 331 and the second conveying thread 332 are opposite; the above-mentioned two moving blocks 31 are respectively cooperated and connected with the first conveying thread 331 and the second conveying thread 332.

[0034] Based on the characteristics of the above structure, it is possible to achieve cooling of the plastic pipe by driving two annular tubes 21 through one motor 32. Since the first half of the thread of the threaded conveying rod 33 has a different rotation direction from the second half of the thread, that is, during the process of the threaded conveying rod 33 driven by the motor 32 to rotate, the two moving blocks 31 move back and forth within a range of half the length of the threaded conveying rod 33. Compared with the case where there is only one annular tube 21, the cooling efficiency of this structure is improved, and the water consumption for more than two annular tubes 21 is reduced. In addition, this structure can increase the frequency of the reciprocating movement of the moving block 31, which helps to improve the cooling efficiency.

[0035] Furthermore, in order to enable the above-mentioned two annular tubes 21 to spray water to cool the plastic tube at the same time, the above-mentioned plastic tube cooling assembly 20 also includes a water supply pipe 23, a booster pump 24 and a three-way joint 25. The water supply pipe 23 is connected to the water inlet of the booster pump 24, the water outlet of the booster pump 24 is connected to any one of the three-way joints 25, and the other two joints are respectively connected to one end of the water supply hose 22 away from the annular tube 21.

[0036] When the above device is used, the booster pump 24 draws water through the water supply pipe 23, and the pressurized water flow is diverted by the three-way joint 25 and simultaneously sprayed out through the water spray port 211 on the annular pipe 21, so as to synchronously cool the front and rear sections of the plastic pipe, which helps to improve the uniformity of cooling of the front and rear sections of the plastic pipe.

[0037] Furthermore, in order to increase the stroke of a single movement of the annular tube 21 to maximize the cooling area, the length of the threaded conveying rod 33 is not less than the length of the avoidance groove 12 to ensure that the sum of the strokes of a single movement of the two moving blocks 31 can completely cover the length of the avoidance groove 12.

[0038] Furthermore, in order to keep the temperature inside the box at a relatively low level, a drain port 13 is provided at the bottom of the box 10 .

[0039] Specifically, the drain port 13 is in a normally open state to ensure that the accumulated water heated up after cooling the plastic pipe can be discharged from the box body 10 in time, so that the temperature in the box body 10 is maintained within a range that is conducive to cooling and shaping the plastic pipe.

[0040] Furthermore, in order to improve drainage efficiency, the bottom surface of the box body 10 is provided with an inclined slope, and the drainage port 13 is provided at the lowest point of the bottom surface inside the box body 10 .

[0041] In combination with the multiple structures and features in the above embodiments, the above cooling enhancement component 30 can assist the plastic pipe cooling component 20 to increase the cooling effect on the plastic pipe, so that a section of the plastic pipe extending into the interior of the box 10 can achieve uniform and synchronous cooling effect both circumferentially and axially.

[0042] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation methods of the present application. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A high-efficiency cooling device for plastic pipe production, characterized in that: include: A box body, wherein avoidance holes are symmetrically opened on two opposite sides of the box body, and the avoidance holes are used to allow the plastic pipe to pass through the box body; A plastic tube cooling assembly, the plastic tube cooling assembly comprising an annular tube and a water delivery hose, the annular tube is arranged in the box body, and the annular tube is arranged concentrically with the avoidance hole, the annular tube is connected with one end of the water delivery hose, and the annular tube is provided with a plurality of water spraying ports, the plurality of water spraying ports are evenly distributed along the inner circumference of the annular tube, and the water delivery hose is used to deliver cooling water into the annular tube; and, A cooling efficiency enhancement component, the cooling efficiency enhancement component includes a moving block and a driving mechanism, the moving block is connected to the annular tube or one end of the water hose adjacent to the annular tube, the driving mechanism is arranged on one side of the box body, and the driving mechanism is transmission-connected to the moving block, and the driving mechanism is used to drive the moving block to drive the annular tube to move axially along the avoidance hole.

2. The high-efficiency cooling device for plastic pipe production according to claim 1 is characterized in that: The driving mechanism includes a motor and a threaded conveying rod. A avoidance groove is opened on one side of the box body along the axial direction of the avoidance hole. The motor is arranged at one end of the avoidance groove, and the driving shaft of the motor is transmission-connected to the threaded conveying rod. A screw hole is penetrated through the surface of the moving block. The moving block is matched and connected to the threaded conveying rod through the screw hole, and the moving block is slidably connected to the avoidance groove. The threaded conveying rod is used to drive the moving block to move along the extension direction of the avoidance groove.

3. The high-efficiency cooling device for plastic pipe production according to claim 2 is characterized in that: The number of the plastic tube cooling assembly and the number of the moving blocks are both greater than one.

4. The high-efficiency cooling device for plastic pipe production according to claim 3 is characterized in that: The number of the plastic pipe cooling assembly and the moving blocks are both two, and the first conveying thread and the second conveying thread are respectively arranged from the midpoint to the two ends of the threaded conveying rod. The rotation directions of the first conveying thread and the second conveying thread are opposite, and the two moving blocks are respectively cooperated and connected with the first conveying thread and the second conveying thread.

5. The high-efficiency cooling device for plastic pipe production according to claim 4 is characterized in that: The plastic pipe cooling assembly also includes a water supply pipe, a booster pump and a three-way joint. The water supply pipe is connected to the water inlet of the booster pump, and the end of the water supply hose away from the annular pipe is connected to the water outlet of the booster pump through the interface of the three-way joint.

6. The high-efficiency cooling device for plastic pipe production according to claim 4 is characterized in that: The length of the threaded conveying rod is not less than the length of the avoidance groove.

7. The high-efficiency cooling device for plastic pipe production according to claim 1 is characterized in that: A drain outlet is arranged at the bottom of the box body.

8. The high-efficiency cooling device for plastic pipe production according to claim 7 is characterized in that: The bottom surface of the box body is provided with an inclined slope, and the drain outlet is located at the lowest point of the bottom surface of the box body.

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