A cooling device for the production and processing of plastic pipes

Abstract

The present invention discloses a cooling device for the production and processing of plastic pipes, which comprises a cooling tank. Feed pipes and discharge pipes are provided at both ends of the cooling tank, and their central axes overlap. Partition plates are provided at both ends inside the cooling tank. The partition plates are provided with material passing holes at positions corresponding to the central axes of the feed pipes or the discharge pipes. The diameter of the material passing holes is the same as the diameters of the two pipes. The water level in the cooling tank is higher than the material passing holes. The partition plates and the side parts of the cooling tank form a cooling water recovery area, and a cooling water inlet pipe is arranged at the top thereof. A plurality of water outlets are provided at the bottom of the cooling water inlet pipe. The cooling water recovery area is connected to an external recovery pool through a pipe. The external recovery pool is connected to the cooling water inlet pipe through a branch pipe, and a water pump is arranged on the branch pipe; a support frame is arranged between the partition plates in the cooling tank; the plastic pipes are completely immersed in the cooling tank, greatly improving the cooling quality and shortening the cooling time. At the same time, the cooling water is recycled to ensure that the water temperature of the cooling water is at the optimal cooling temperature.

Description

Technical Field

[0001] The present invention relates to the field of plastic pipe processing, and particularly to a cooling device for plastic pipe production and processing. Background Art

[0002] Plastic pipes are generally made of synthetic resin, that is, polyester, as raw materials, and additives such as stabilizers, lubricants, and plasticizers are added. They are processed by extrusion in a pipe-making machine by the method of "plastic molding". Due to its light weight and convenient construction, it has been more and more widely used in construction projects.

[0003] High-strength plastic pipes are a kind of commonly produced plastic pipes. They have high strength and need to be quickly cooled during production to achieve their high-strength performance. However, the existing methods generally directly use fans for heat dissipation or directly spray water for cooling. The heat dissipation effect of the fan is poor, and for direct spraying, the water is generally not recycled, which is easy to cause waste. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a cooling device for plastic pipe production and processing. By using water cooling for cooling, the plastic pipe is completely immersed in the cooling water, which greatly improves the cooling effect and solves the above-mentioned multiple defects in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A cooling device for plastic pipe production and processing includes a cooling tank. Feed pipes and discharge pipes are provided at both ends of the cooling tank, and their central axes overlap. Partition plates are provided at both ends inside the cooling tank. The partition plates are provided with material passing holes at positions corresponding to the central axes of the feed pipes or discharge pipes. The diameter of the material passing holes is the same as the diameters of the two pipes. The water level in the cooling tank is higher than the material passing holes. The partition plates and the side parts of the cooling tank form a cooling water recovery area. A cooling water inlet pipe is provided at the top of the cooling water recovery area. A plurality of water outlets are provided at the bottom of the cooling water inlet pipe. The cooling water recovery area is connected to an external recovery pool through a pipe. The external recovery pool is connected to the cooling water inlet pipe through a branch pipe, and a water pump is provided on the branch pipe. A support frame is provided between the partition plates in the cooling tank.

[0006] Preferably, the support frame includes a cylindrical metal frame and support columns. The cylindrical metal frame is horizontally arranged relative to the cooling tank, and the support columns are provided between the two. A plurality of pulleys are equidistantly arranged at the bottom inside the cylindrical metal frame.

[0007] Preferably, the feed pipes, discharge pipes, and discharge holes are also provided with rollers at their inner bottoms respectively. The roller specifications are the same and they are at the same height.

[0008] Preferably, the cross-section of the edge position of the roller is a V-shaped structure.

[0009] Preferably, a cover plate hinged at the top is provided at the inner side of the partition plate at the position of the material passing hole, a rotary motor is provided at the outer side of the top of the cooling tank, a winding reel is arranged on the driving shaft of the rotary motor, a winding rope is arranged on the winding reel, and the end of the rope is connected to the bottom of the cover plate.

[0010] Preferably, a drain pipe is provided below the material passing hole on the partition plate near the feed pipe side in the cooling tank, and a solenoid valve is provided at the pipe orifice.

[0011] Preferably, at least four cooling water spray guns are equidistantly arranged on the side wall of the feed pipe, and the nozzles of the cooling water spray guns face the feeding direction of the feed pipe.

[0012] Preferably, a water collecting tank extends from the bottom of the feed pipe in the cooling tank, and the water collecting tank communicates with the cooling water recovery area.

[0013] Preferably, a hinge seat is provided on the side wall of the feed pipe corresponding to the position of the cooling water spray gun, the cooling water spray gun is hinged to the hinge seat, an electric telescopic rod is arranged between the cooling water spray gun and the side wall of the feed pipe, one end is hinged to the side wall of the feed pipe, the other end is provided with a slider, and a chute is provided at the bottom of the cooling water spray gun, and the slider slides in the chute.

[0014] The beneficial effects of adopting the above technical solutions are as follows: In the cooling device for the production and processing of plastic pipes with the structure of the present invention, the plastic pipe is completely immersed in the cooling tank, which greatly improves the cooling quality and shortens the cooling time. At the same time, the cooling water is recycled to ensure that the water temperature of the cooling water is at the optimal cooling temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the structural schematic diagram of the present invention;

[0016] Figure 2 is the structural schematic diagram at the cooling water spray gun;

[0017] Figure 3 is the structural schematic diagram of the roller;

[0018] Figure 4 is the structural schematic diagram at the feed pipe.

[0019] Among them, 1 - cooling tank, 2 - feed pipe, 3 - discharge pipe, 4 - partition plate, 5 - material passing hole, 6 - cooling water recovery area, 7 - cooling water inlet pipe, 8 - water outlet, 9 - external recovery pool, 10 - branch pipe, 11 - water pump, 12 - support frame, 13 - cylindrical metal frame, 14 - support column, 15 - roller, 16 - cover plate, 17 - rotary motor, 18 - winding reel, 19 - rope, 20 - drain pipe, 21 - solenoid valve, 22 - cooling water spray gun, 23 - water collecting tank, 24 - hinge seat, 25 - electric telescopic rod, 26 - slider, 27 - chute. DETAILED DESCRIPTION OF THE INVENTION

[0020] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Figure 1 The specific embodiments of the present invention are presented as follows: A cooling device for plastic pipe production and processing includes a cooling tank 1. At both ends of the cooling tank 1, a feed pipe 2 and a discharge pipe 3 are provided, and their central axes overlap. Inside the cooling tank 1, partitions 4 are provided at both ends. The partitions 4 are provided with material passing holes 5 at positions corresponding to the central axes of the feed pipe 2 or the discharge pipe 3. The diameter of the material passing holes 5 is the same as the diameters of the two pipes. The water level in the cooling tank 1 is higher than the material passing holes 5. The partitions 4 and the side parts of the cooling tank 1 form a cooling water recovery area 6. The two cooling water recovery areas 6 on both sides are connected. A cooling water inlet pipe 7 is provided at its top. The bottom of the cooling water inlet pipe 7 is provided with a plurality of water outlet holes 8. The cooling water recovery area 6 is connected to an external recovery pool 9 through a pipe. The external recovery pool 9 is connected to the cooling water inlet pipe 7 through a branch pipe 10, and a water pump 11 is provided on the branch pipe 10; a support frame 12 is provided between the partitions 4 in the cooling tank 1.

[0022] During operation, the plastic pipe is passed through the feed pipe 2 and the material passing holes 5 of the partition 4 and enters the support frame 12. Through an external thrust, the plastic pipe is pushed to move along the support frame 12 in the direction of the discharge pipe 3. During this process, the cooling water pipe above continuously adds cooling water into the cooling tank 1. At the same time, the cooling water in the cooling tank 1 is discharged from the gaps of the material passing holes 5, ensuring the fluidity of the cooling water, that is, avoiding the overflow of the cooling water from the cooling tank 1 and also enabling the cooling water that has absorbed heat to be discharged from the cooling tank 1 in time, ensuring that the cooling water in the cooling tank 1 is at the optimal cooling temperature; after the cooling water is recovered, it is cooled and then transported to the cooling water inlet pipe 7 through the branch pipe 10 to achieve recycling.

[0023] The support frame 12 includes a cylindrical metal frame 13 and support columns 14. The cylindrical metal frame 13 is horizontally arranged relative to the cooling tank 1, and the support columns 14 are arranged between the two. A plurality of pulleys are equidistantly arranged at the bottom inside the cylindrical metal frame 13; the feed pipe 2, the discharge pipe 3, and the discharge holes are also provided with rollers 15 at their inner bottoms. The rollers 15 have the same specifications and are at the same height; the cross-section of the edge position of the rollers 15 is a V-shaped structure.

[0024] The cylindrical metal frame 13 plays a role in supporting the plastic pipe. At the same time, the setting of the rollers 15 ensures that the plastic pipe can smoothly move from the feed pipe 2 to the discharge pipe 3 under the action of an external thrust.

[0025] On the inner side of the partition plate 4 at the position of the material passing hole 5, a cover plate 16 hinged at the top is provided. On the top of the cooling tank 1, a rotary motor 17 is provided on the outer side. The driving shaft of the rotary motor 17 is provided with a unwinding reel 18. The unwinding reel 18 is provided with a wound rope 19. The end of the rope 19 is connected to the bottom of the cover plate 16. The winding and unwinding of the rope 19 are realized by the forward and reverse rotation of the unwinding reel 18, so as to realize the opening and closing of the cover plate 16. On the partition plate 4 near the feed pipe 2 in the cooling tank 1, a drain pipe 20 is provided below the material passing hole 5, and a solenoid valve 21 is provided at the pipe orifice. If the diameter of the plastic pipe is about the same as the aperture of the material passing hole 5, in fact, the material passing hole 5 is in a semi-sealed state. Then, it is necessary to open the solenoid valve 21 on the drain pipe 20 to drain the cooling water in the cooling tank 1.

[0026] In the initial state, the cover plate 16 at the partition plate 4 is closed to ensure the sealing performance at the material passing hole 5. When the plastic pipe enters the feed pipe 2 and reaches the material passing hole 5 of the partition plate 4, the cover plate 16 at this place is opened, and the plastic pipe enters the cooling tank 1; it advances along the support frame 12. When it is about to reach the material passing hole 5 of the other partition plate 4, the cover plate 16 at this place is opened, and the plastic pipe passes through the material passing hole 5 of this partition plate 4 and enters the discharge pipe 3.

[0027] The side wall of the feed pipe 2 is provided with at least four cooling water spray guns 22 at equal intervals, and the nozzles of the cooling water spray guns 22 face the feeding direction of the feed pipe 2; the cooling tank 1 extends a water collecting tank 23 at the bottom of the feed pipe 2, and the water collecting tank 23 communicates with the cooling water recovery area 6; a hinge seat 24 is provided on the side wall of the feed pipe 2 corresponding to the position of the cooling water spray gun 22. The cooling water spray gun 22 is hinged to the hinge seat 24. An electric telescopic rod 25 is provided between the cooling water spray gun 22 and the side wall of the feed pipe 2. One end is hinged to the side wall of the feed pipe 2, and the other end is provided with a slider 26. A chute 27 is provided at the bottom of the cooling water spray gun 22, and the slider 26 slides in the chute 27.

[0028] The plastic pipe about to enter the feed pipe 2 is cooled by the cooling water spray gun 22 to improve the hardness of the plastic pipe and facilitate its entry into the feed pipe 2. The angle of its nozzle can be adjusted by the electric telescopic rod 25; a water retaining plate is vertically upward provided around the water collecting tank 23, and there is a hole in one of the water retaining plates to facilitate the plastic pipe to pass through the middle.

[0029] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A cooling device for plastic pipe production and processing, including a cooling tank, characterized in that, Both ends of the cooling tank are provided with a feed pipe and a discharge pipe, and their central axes overlap. Inside the cooling tank, partitions are provided at both ends. One partition is provided with a material passing hole at the position corresponding to the central axis of the feed pipe, and the other partition is provided with a material passing hole at the position corresponding to the central axis of the discharge pipe. The water level inside the cooling tank is higher than the material passing hole. The partition and the side of the cooling tank form a cooling water recovery area. A cooling water inlet pipe is arranged at the top of the partition. Multiple water outlets are provided at the bottom of the cooling water inlet pipe. The cooling water recovery area is connected to an external recovery pool through a pipeline. The external recovery pool is connected to the cooling water inlet pipe through a branch pipe, and a water pump is arranged on the branch pipe; a support frame is arranged between the partitions in the cooling tank; At the position of the material passing hole on the inner side of the partition, a cover plate hinged at the top is provided. On the outer side of the top of the cooling tank, a rotating motor is provided. The driving shaft of the rotating motor is provided with a winding disc. The winding disc is provided with a wound rope, and the end of the rope is connected to the bottom of the cover plate; On the partition near the feed pipe side inside the cooling tank, a drain pipe is provided below the material passing hole, and a solenoid valve is provided at the pipe orifice of the drain pipe; At least four cooling water spray guns are equidistantly arranged on the side wall of the feed pipe, and the plastic pipe about to enter the feed pipe is cooled by the cooling water spray guns; At the position corresponding to the cooling water spray gun on the side wall of the feed pipe, a hinge seat is provided. The cooling water spray gun is hinged to the hinge seat. An electric telescopic rod is arranged between the cooling water spray gun and the side wall of the feed pipe. One end of the electric telescopic rod is hinged to the side wall of the feed pipe, and the other end of the electric telescopic rod is provided with a slider. A chute is provided at the bottom of the cooling water spray gun, and the slider slides in the chute.

2. The cooling device for plastic pipe production and processing according to claim 1, characterized in that, The support frame includes a cylindrical metal frame and support columns. The cylindrical metal frame is horizontally arranged relative to the cooling tank. Multiple pulleys are equidistantly arranged at the bottom inside the cylindrical metal frame.

3. The cooling device for plastic pipe production and processing according to claim 2, characterized in that, The feed pipe, the discharge pipe and the material passing hole are also provided with rollers at their inner bottoms respectively. The rollers have the same specification and are at the same height.

4. The cooling device for plastic pipe production and processing according to claim 3, characterized in that, The cross section at the edge position of the roller is a V-shaped structure.

5. The cooling device for plastic pipe production and processing according to claim 1, characterized in that, The cooling tank extends a water collecting tank at the bottom of the feed pipe, and the water collecting tank communicates with the cooling water recovery area.

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