A cooling and drying device for extrusion tube processing

Abstract

This invention discloses a cooling and drying device for extruded tube processing, comprising a water-cooling component, an air-cooling component, and a drying component. Several water-cooling components are arranged side-by-side. Each water-cooling component includes a water-cooling box with an open top, a box cover positioned above the water-cooling box, several spray pipes arranged along the side wall of the water-cooling box, and several spray nozzles mounted on the spray pipes. The air-cooling component includes two sliding support plates that can be driven by a power mechanism to move along the length of the water-cooling box. Clamping plates with adjustable spacing are mounted on the sliding support plates. Air blowing pipes are mounted on the inner side of the clamping plates, and several angle-adjustable cold air nozzles are mounted on the air blowing pipes. Some of the cold air nozzles extend below the water level in the water-cooling box. This invention achieves comprehensive and uniform cooling of plastic tubes, improving product quality.

Description

Technical Field

[0001] This invention relates to the field of cooling device technology, and more specifically to a cooling and drying device for extrusion tube processing. Background Technology

[0002] In the production process of plastic pipe fittings, after injection molding, the fittings need to be cooled quickly and effectively to ensure uniform shrinkage and product quality. Existing production lines primarily use methods such as immersion in ordinary water tanks, spray systems, or a combination of both for cooling plastic pipe fittings. For products like those manufactured by our company... Figure 1 The cooling effect of the pipe fittings with alternating straight pipe section 20 and corrugated pipe section 30 is not ideal.

[0003] On the one hand, water flow or spray water tends to travel in one direction, making it difficult to cool the plastic pipes evenly from multiple directions; on the other hand, due to the high surface tension of the water at the joints of the corrugated pipe sections, the water entering the joints does not easily circulate, affecting the cooling effect and the final product quality. Summary of the Invention

[0004] Therefore, the present invention provides a cooling and drying apparatus for extrusion tube processing to solve the above-mentioned defects in the prior art.

[0005] A cooling and drying device for extrusion tube processing includes a water-cooling component, an air-cooling component, and a drying component. Several of the water-cooling components are arranged side by side. Each water-cooling component includes a water-cooling box with an open top, a box cover disposed above the water-cooling box, several spray pipes arranged along the side wall of the water-cooling box, and several spray heads disposed on the spray pipes.

[0006] The air-cooling assembly includes two sliding support plates that can be driven by a power mechanism to move along the length of the water-cooled tank. The sliding support plates are provided with clamping plates that can move towards each other to adjust the distance. An air blowing pipe is provided on the inner side of the clamping plate. Several angle-adjustable cold air nozzles are provided on the air blowing pipe. Some of the cold air nozzles extend below the water level of the water-cooled tank.

[0007] Preferably, the power mechanism includes drive gears rotatably disposed on the two inner side walls of the water-cooled box. The two drive gears are driven to rotate by a motor. The two sliding support plates are respectively horizontally slidably disposed above and below the water-cooled box. Racks are provided on both sides of the bottom of the upper sliding support plate and the top of the lower sliding support plate. The two racks of the upper sliding support plate mesh with the top of the corresponding drive gear, and the two racks of the lower sliding support plate mesh with the bottom of the corresponding drive gear.

[0008] Preferably, it also includes a guiding mechanism, which includes a plurality of guide rollers arranged parallel to the extension direction of the water-cooled box, and the guide rollers are provided with V-shaped grooves.

[0009] Preferably, the water-cooled box is equipped with a water pump, the outlet of the water pump is connected to several spray pipes through a water pipe, the inlet of the water pump is connected to a water storage tank, and the bottom of the water-cooled box is equipped with a drain outlet, which is connected to the water storage tank through a drain pipe.

[0010] Preferably, the water-cooled box is further provided with a first air cylinder and a second air cylinder. The first air cylinder has a first air plug slidably disposed inside, connected to the upper sliding support plate. The second air cylinder has a second air plug slidably disposed inside, connected to the lower sliding support plate. The first air chamber formed in the first air cylinder and the second air chamber formed in the second air cylinder are disposed on the same side. The first air chamber and the second air chamber are respectively connected to the same cold air source through air inlet pipes. Each air inlet pipe is provided with a one-way air inlet valve. The first air chamber and the second air chamber are respectively connected to the air blowing pipes corresponding to the upper and lower sliding support plates through exhaust pipes. The exhaust pipes are provided with one-way air outlet valves.

[0011] Preferably, a plurality of fixed nozzles are evenly arranged in the water-cooled box located below the filter plate, and the plurality of fixed nozzles are connected to the first air chamber and the second air chamber through an exhaust pipe.

[0012] Preferably, the inner side of the clamping plate is provided with several arc-shaped frames, and several guide cylinders are rotatably arranged along the arc-shaped frames. The cold air nozzles are installed in the corresponding guide cylinders. Several guide cylinders located on the same horizontal axis are connected to the same adjusting plate. One end of the adjusting plate is hinged to the clamping plate. A threaded adjusting rod is vertically rotatably installed on the clamping plate. The lower surface of the adjusting plate is provided with a guide groove. A guide slider hinged to the top of the threaded adjusting rod is slidably installed inside the guide groove.

[0013] Preferably, the sliding bearing plate is provided with a guide rail and a bidirectional lead screw that can be driven to rotate by a turntable in a direction perpendicular to the extension of the water-cooled box. Two opposing clamping plates are slidably disposed on the guide rail, and the two clamping plates are respectively mounted on the screws of the bidirectional lead screw with different directions of rotation by lead screw nuts.

[0014] The present invention has the following advantages:

[0015] This invention, through the cooperation of water-cooling components, air-cooling components, guiding mechanisms, and drying components, enables two cooling processes for plastic pipes: water cooling and air cooling. By adjusting the movement of the sliding support plate of the adjustable-direction cooling air nozzles, continuous forward airflow is applied to the conveying plastic pipe, blowing away heated water that is difficult to circulate under water surface tension from the side of the corrugated pipe wall, thus accelerating water circulation in the pipe wall gaps. Simultaneously, while driving the sliding support plate, the device also enables continuous automatic replenishment and spraying of cooling air, achieving comprehensive and uniform cooling of the plastic pipe fittings and improving product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the plastic tube to be cooled according to the present invention;

[0017] Figure 2 This is a schematic diagram of the surface structure of the present invention;

[0018] Figure 3 This is a schematic diagram of a partial internal structure of the present invention;

[0019] Figure 4 This is a partial structural diagram of the bottom surface of the upper sliding bearing plate of the present invention;

[0020] Figure 5 This is a schematic diagram showing the spray angle of the spray head relative to the plastic pipe according to the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the water-cooling component of the present invention;

[0022] Figure 7 This is a schematic diagram of the cold zone transport process for the air-cooled component of the present invention;

[0023] Figure 8 This is a schematic diagram showing the angle adjustment of the guide cylinder that carries the spray head according to the present invention.

[0024] In the picture:

[0025] 1-Water-cooled assembly; 2-Air-cooled assembly; 3-Guide roller; 10-Plastic pipe; 20-Straight pipe section; 30-Corrugated pipe section;

[0026] 101-Water-cooled box; 102-Filter plate; 103-Spray pipe; 104-Spray head; 105-Box cover; 106-Water pipe;

[0027] 201-Sliding support plate; 202-Clamping plate; 203-Air blowing pipe; 204-Cold air nozzle; 205-Drive gear; 206-Rack; 209-Arc-shaped frame; 210-Guide cylinder; 211-Adjusting plate; 212-Guide groove; 213-Threaded adjusting rod; 214-Guide slider; 215-Guide slide rail; 216-Turntable; 217-Double-acting screw; 218-First air cylinder; 219-Second air cylinder; 220-First air plug; 221-Second air plug; 222-Cold air source; 223-Inlet pipe; 225-Exhaust pipe; 226-Fixed nozzle. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] like Figures 1 to 8 As shown, the present invention provides a cooling and drying device for extrusion tube processing, including a water-cooling component 1, an air-cooling component 2, a guiding mechanism, and a drying component (not shown in the figure).

[0030] Among them, several water-cooling components 1 are arranged side by side, and each water-cooling component 1 includes a water-cooling box 101 with an opening at the top and a box cover 105 disposed above the water-cooling box 101. The box cover 105 can reduce the dissipation of cold air inside the water-cooling box 101.

[0031] Several spray pipes 103 are arranged along the side wall of the water-cooled box 101, and several spray heads 104 are provided on the spray pipes 103.

[0032] A water pump (not shown in the figure) is installed on the water-cooled box 101. The outlet of the water pump is connected to several spray pipes 103 through a water pipe 106. The inlet of the water pump is connected to a water storage tank (not shown in the figure). A drain outlet is provided at the bottom of the water-cooled box 101. The drain outlet is connected to the water storage tank through a drain pipe, thereby realizing the reuse of water resources.

[0033] The air-cooling assembly 2 includes two sliding support plates 201 that can be driven by a power mechanism to move along the length of the water-cooled box 101. Specifically:

[0034] The power mechanism includes drive gears 205 rotatably mounted on the two inner side walls of the water-cooled box 101. The two drive gears 205 are driven to rotate by a motor (not shown in the figure). The two sliding support plates 201 are respectively horizontally slidably mounted above and below the water-cooled box 101. Racks 206 are provided on both sides of the bottom of the upper sliding support plate 201 and the top of the lower sliding support plate 201. The two racks 206 of the upper sliding support plate 201 mesh with the top of the corresponding drive gear 205, and the two racks 206 of the lower sliding support plate 201 mesh with the bottom of the corresponding drive gear 205.

[0035] During operation, the intermittent forward and reverse rotation of the motor drives the drive gear 205 to rotate, thereby causing the two sliding bearing plates 201, which are meshed with the rack 206 of the drive gear 205, to move away from or towards each other.

[0036] The sliding bearing plate 201 is provided with a clamping plate 202 that can move in opposite directions to adjust the spacing. Specifically:

[0037] The sliding bearing plate 201 is provided with a guide rail 215 perpendicular to the direction of extension of the water-cooled box 101 and a bidirectional lead screw 217 that can be driven to rotate by a turntable 216. Two opposing clamping plates 202 are slidably disposed on the guide rail 215. The two clamping plates 202 are respectively mounted on the screws of the bidirectional lead screw 217 with different directions of rotation by lead screw nuts.

[0038] An air blowing pipe 203 is provided on the inner side of the clamping plate 202. Several angle-adjustable cold air nozzles 204 are provided on the air blowing pipe 203, and some of the cold air nozzles 204 extend below the water level of the water-cooled tank 101. Specifically:

[0039] The clamping plate 202 has several arc-shaped frames 209 on its inner side, and several guide cylinders 210 are rotatably arranged along the arc-shaped frames 209. The cold air nozzles 204 are installed in the corresponding guide cylinders 210. Several guide cylinders 210 located on the same horizontal axis are connected to the same adjusting plate 211. One end of the adjusting plate 211 is hinged to the clamping plate 202. A threaded adjusting rod 213 is vertically rotatably installed on the clamping plate 202. A guide groove 212 is provided on the lower surface of the adjusting plate 211. A guide slider 214 hinged to the top of the threaded adjusting rod 213 is slidably installed inside the guide groove 212.

[0040] The water-cooled box 101 is also equipped with a first air cylinder 218 and a second air cylinder 219. The first air cylinder 218 has a first air plug 220 slidably disposed inside, connected to the upper sliding support plate 201. The second air cylinder 219 has a second air plug 221 slidably disposed inside, connected to the lower sliding support plate 201. The first air chamber formed in the first air cylinder 218 and the second air chamber formed in the second air cylinder 219 are located on the same side. The first air chamber and the second air chamber are respectively connected to the same cold air source 222 through an air inlet pipe 223. Each air inlet pipe 223 is equipped with a one-way air inlet valve (not shown in the figure). The first air chamber and the second air chamber are respectively connected to the air blowing pipes 203 on the upper and lower sliding support plates 201 through an exhaust pipe 225. The exhaust pipe 225 is equipped with a one-way air outlet valve (not shown in the figure).

[0041] A plurality of fixed nozzles 226 are evenly arranged in the water-cooled box 101 located below the filter plate 102. The fixed nozzles 226 are connected to the first air chamber and the second air chamber through exhaust pipes 225. The fixed nozzles 226 can promote the flow of water in the water-cooled box 101, and also agitate the water flow to prevent sediment from clogging the mesh of the filter plate 102 and thus affecting the water circulation.

[0042] The guiding mechanism includes a plurality of guide rollers 3 arranged parallel to the extension direction of the water-cooled box 101, and the guide rollers 3 are provided with V-shaped grooves. The guide rollers 3 can provide guidance for the horizontal movement of the plastic tube 10.

[0043] The working principle of the device of this invention is as follows:

[0044] Before operation, the thermoplastic extruded plastic tube 10 enters from one side of the water-cooling box 101 and passes through several water-cooling boxes 101 in sequence. Due to the limiting and guiding effect of the guide roller 3, the plastic tube 10 will be completely submerged in the water of the water-cooling box 101. Then, the rotating turntable 216 drives the bidirectional lead screw 217 to rotate, and the two clamping plates 202 mounted on the bidirectional lead screw 217 move towards each other under the guidance of the guide rail 215. The arc-shaped frame 209 installed on the inner side of the clamping plate 202 is brought close to the plastic tube 10, and the threaded adjusting rod 213 is rotated to adjust the angle of several guide cylinders 210 mounted on the adjusting plate 211, so that the air jet direction of the cold air nozzles 204 installed in the guide cylinders 210 is as tangent as possible to the tube wall of the plastic tube 10.

[0045] During operation, water-cooled component 1 and air-cooled component 2 work synchronously.

[0046] As the plastic tube 10 moves within the water-cooled tank 101, a water pump pumps water from the storage tank into the spray pipe 103 through the water pipe 106, and then sprays it out from the spray head 104. This serves two purposes: firstly, it cools the plastic tube 10 within the water-cooled tank 101; secondly, when the water temperature in the water-cooled tank 101 exceeds a threshold, it replenishes the water discharged from the drain outlet.

[0047] Then, the sliding bearing plates 201, driven by the motor, move away from or towards each other, such as... Figure 7 As shown, when the upper sliding support plate 201 moves from left to right along the water-cooled box 101, the first air plug 220 connected to the upper sliding support plate 201 moves to the right along the first air cylinder 218, thereby squeezing the gas in the first air chamber into the air blowing pipe 203 above the sliding support plate 201 along the exhaust pipe 225 and spraying it out along the cold air nozzle 204. At this time, if the moving speed of the plastic tube 10 and the sliding support plate 201 is adjusted to be the same, the cold air sprayed out of the cold air nozzle 204 can cool the plastic tube 10 on the one hand; on the other hand, it can also blow away the water that is heated in the pipe wall gap of the corrugated pipe section 30 and is not easy to circulate under the action of water surface tension from the side, thereby accelerating the water circulation in the pipe wall gap and accelerating the cooling effect.

[0048] Meanwhile, the second air plug 221, connected to the lower sliding support plate 201, moves to the left along the second air cylinder 219. At this time, the volume inside the second air chamber increases. Under the action of negative pressure, cold air from the cold air source 222 enters the second air chamber through the air inlet pipe 223, achieving automatic replenishment of cold air. At this time, the cold air nozzle 204 connected to the lower sliding support plate 201 does not spray air.

[0049] When the motor rotates in the opposite direction and the upper and lower sliding support plates 201 move away from each other, the lower sliding support plate 201 slides from left to right, and the cold air nozzle 204 on it blows air onto the plastic tube 10 that moves in the same direction and at the same speed, thus achieving continuous air cooling.

[0050] After being cooled, the plastic tube 10 comes out of the water-cooled box 101 and is dried by the drying assembly before undergoing further processing.

[0051] This invention, through the cooperation of the water-cooling component 1, the air-cooling component 2, the guiding mechanism, and the drying component, can achieve two cooling processes for plastic pipes: water cooling and air cooling. By adjusting the movement of the sliding support plate 201 of the adjustable-direction cold air nozzle 204, continuous front and side air blowing can be achieved on the conveying plastic pipe 10, blowing away the water that is heated in the pipe wall gaps of the corrugated pipe section 30 and is difficult to circulate under the action of water surface tension, thereby accelerating water circulation in the pipe wall gaps. At the same time, while driving the sliding support plate, the device can also achieve continuous automatic replenishment and spraying of cold air, realizing comprehensive and uniform cooling of plastic pipe fittings and improving product quality.

[0052] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A cooling and drying apparatus for extrusion tube processing, characterized in that: It includes a water-cooling component (1), an air-cooling component (2), and a drying component. Several water-cooling components (1) are arranged side by side. Each water-cooling component (1) includes a water-cooling box (101) with an open top, a box cover (105) arranged above the water-cooling box (101), several spray pipes (103) arranged along the side wall of the water-cooling box (101), and several spray heads (104) arranged on the spray pipes (103). The air-cooling assembly (2) includes two sliding support plates (201) that can be driven by a power mechanism to move along the length of the water-cooled box (101). The sliding support plates (201) are provided with clamping plates (202) that can move towards each other to adjust the spacing. An air blowing pipe (203) is provided on the inner side of the clamping plate (202). The air blowing pipe (203) is provided with a number of air nozzles (204) with adjustable angles. Some of the air nozzles (204) extend below the water level of the water-cooled box (101). The water-cooled box (101) is also provided with a first air cylinder (218) and a second air cylinder (219). The first air cylinder (218) is slidably provided with a first air plug (220) connected to the upper sliding support plate (201). The second air cylinder (219) is slidably provided with a second air plug (221) connected to the lower sliding support plate (201). The first air chamber formed in the first air cylinder (218) and the second air chamber formed in the second air cylinder (219) are located on the same side. The first air chamber and the second air chamber are respectively connected to the same cold air source (222) through an air inlet pipe (223). The air inlet pipe (223) is provided with a one-way air inlet valve. The first air chamber and the second air chamber are respectively connected to the air blowing pipe (203) on the upper and lower sliding support plates (201) through an exhaust pipe (225). The exhaust pipe (225) is provided with a one-way air outlet valve. The water-cooled box (101) has a filter plate (102) fixed in place and a number of fixed nozzles (226) evenly arranged in place. The number of fixed nozzles (226) are located below the filter plate (102). The number of fixed nozzles (226) are connected to the first air chamber and the second air chamber through an exhaust pipe (225). The clamping plate (202) has several arc-shaped frames (209) on its inner side, and several guide cylinders (210) are rotatably arranged along the arc-shaped frames (209). The cold air nozzle (204) is installed in the corresponding guide cylinder (210). Several guide cylinders (210) located on the same horizontal axis are connected to the same adjusting plate (211). One end of the adjusting plate (211) is hinged to the clamping plate (202). A threaded adjusting rod (213) is vertically rotatably installed on the clamping plate (202). A guide groove (212) is provided on the lower surface of the adjusting plate (211). A guide slider (214) hinged to the top of the threaded adjusting rod (213) is slidably installed inside the guide groove (212).

2. The cooling and drying apparatus for extrusion tube processing according to claim 1, characterized in that: The power mechanism includes drive gears (205) rotatably mounted on the two inner walls of the water-cooled box (101). The two drive gears (205) are driven to rotate by a motor. The two sliding support plates (201) are horizontally slidably mounted above and below the water-cooled box (101). The bottom of the upper sliding support plate (201) and the top of the lower sliding support plate (201) are provided with racks (206). The two racks (206) of the upper sliding support plate (201) mesh with the top of the corresponding drive gears (205), and the two racks (206) of the lower sliding support plate (201) mesh with the bottom of the corresponding drive gears (205).

3. The cooling and drying apparatus for extrusion tube processing according to claim 1, characterized in that: It also includes a guiding mechanism, which includes a plurality of guide rollers (3) arranged parallel to the extension direction of the water-cooled box (101), and the guide rollers (3) are provided with V-shaped grooves.

4. The cooling and drying apparatus for extrusion tube processing according to claim 1, characterized in that: A water pump is installed on the water-cooled box (101). The outlet of the water pump is connected to several spray pipes (103) through a water pipe (106). The inlet of the water pump is connected to a water storage tank. A drain outlet is provided at the bottom of the water-cooled box (101). The drain outlet is connected to the water storage tank through a drain pipe.

5. The cooling and drying apparatus for extrusion tube processing according to claim 1, characterized in that: The sliding bearing plate (201) is provided with a guide rail (215) perpendicular to the direction of extension of the water-cooled box (101) and a bidirectional lead screw (217) that can be driven to rotate by a turntable (216). Two opposing clamping plates (202) are slidably disposed on the guide rail (215). The two clamping plates (202) are respectively mounted on the screws of the bidirectional lead screw (217) with different directions of rotation by lead screw nuts.

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