A circulating water cooling device and its application in plastic production and processing

Abstract

This invention relates to the field of plastic product manufacturing technology, specifically a circulating water cooling device and its application in plastic production and processing. The device includes: a water storage tank containing cooling water for cooling plastic pipes; a pump assembly for pumping cooling water out of the water storage tank and pumping it back into the tank; an air-cooling assembly connecting the pump assembly and the water storage tank, capable of air-cooling the cooling water; a swing mechanism housed within the water storage tank, comprising a transmission assembly and a deflector plate, the transmission assembly driving the deflector plate to deflect when the pump assembly operates; and a pushing assembly connected to the air-cooling assembly, the pushing assembly having a distributor head connected to the pump assembly, and the pushing assembly driving the distributor head to reciprocate when the air-cooling assembly operates, thereby increasing the contact area between the cooling water and air during cooling of the plastic pipes and improving the cooling effect.

Description

Technical Field

[0001] This invention relates to the field of plastic product manufacturing technology, specifically a circulating water cooling device and its application in plastic production and processing. Background Technology

[0002] The main manufacturing process for plastic pipes is extrusion. First, pre-processed plastic granules are added to the hopper of an extruder. Under the action of a high-speed rotating screw, the granules are melted into a molten material. Then, the molten material is extruded through the pressure of the extruder into the extrusion die, forming the initial shape of the plastic pipe. Finally, the size and thickness of the pipe are controlled by adjusting the speed and pressure of the extruder.

[0003] The extruded plastic tubes need to be shaped and cooled. The specific operation involves sending the plastic tube into a cooling tank, where the cooling water in the tank exchanges heat with the plastic tube to quickly cool and shape it.

[0004] As cooling water is used in the cooling tank, the temperature of the cooling water will rise, and the cooling effect of the cooling water will decrease. Although the plastic pipe will be cooled to a certain extent after passing through the cooling water, the cooling effect is insufficient, and the plastic pipe will still be in a relatively soft state. At this time, the plastic pipe is prone to bending or even breaking, which will affect the quality of the product. Summary of the Invention

[0005] The purpose of this invention is to provide a circulating water cooling device and its application in plastic production and processing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A circulating water cooling device, comprising:

[0008] A water storage tank, which stores cooling water for cooling the plastic pipes;

[0009] A pumping assembly is connected to the water storage tank. The pumping assembly is used to draw out the cooling water in the water storage tank and pump it back into the water storage tank.

[0010] An air-cooling assembly connects the pump assembly to the water storage tank, and the air-cooling assembly is capable of air-cooling the cooling water.

[0011] Also includes:

[0012] A swing mechanism is installed inside the water storage tank. The swing mechanism includes a transmission component and a deflector plate. The transmission component can drive the deflector plate to deflect when the pumping component is activated.

[0013] A push component is connected to the air-cooling component. The push component is connected to a dispensing head that communicates with the pumping component. The push component can drive the dispensing head to reciprocate when the air-cooling component is activated.

[0014] As a further aspect of the present invention: the pump assembly includes a first drive device fixedly installed inside the water storage tank, and the output shaft of the first drive device is connected to an impeller pump disposed inside the water storage tank.

[0015] The inlet of the impeller pump is connected to the inside of the water storage tank, and the outlet is connected to the distributor head through a conduit.

[0016] The output shaft of the first drive unit is also connected to the transmission assembly.

[0017] As a further embodiment of the present invention: the transmission assembly includes a first bevel gear set rotatably installed inside the water storage tank, and the first bevel gear set is connected to the output shaft of the first drive device via a first belt;

[0018] The first bevel gear set is rotatably mounted on a turntable inside the water storage tank. A connecting rod is rotatably mounted on the turntable, and the end of the connecting rod away from the turntable is rotatably connected to the deflector plate.

[0019] As a further embodiment of the present invention: the air-cooled assembly includes an air-cooled box disposed on the side of the water storage tank, a through hole is provided on one side of the air-cooled box, a fan blade is rotatably installed in the through hole, and an inclined plate is provided inside the air-cooled box;

[0020] The air-cooling assembly also includes a second drive device fixedly installed outside the air-cooling box. The output shaft of the second drive device is connected to the rotating shaft of the fan blade via a second belt, and the output shaft of the second drive device is connected to the push assembly via a second bevel gear set.

[0021] The air-cooled box is connected to the water storage tank via a return pipe.

[0022] As a further embodiment of the present invention: the pushing component includes a horizontal plate fixedly installed on the air-cooled box, the horizontal plate having a groove along its length, a slider being slidably installed in the groove, the slider being connected to the conduit through a corrugated pipe, and the slider being fixedly connected to the dispensing head;

[0023] The pushing component also includes an action structure connected to the second bevel gear set and used to drive the slider to reciprocate along the length direction of the groove.

[0024] As a further embodiment of the present invention: the action structure includes two transmission wheels rotatably mounted on the horizontal plate, and a transmission belt is sleeved between the two transmission wheels;

[0025] The actuation structure also includes a reciprocating component disposed on the horizontal plate. Two sliding sleeves are symmetrically disposed on the reciprocating component. The sliding sleeves are slidably connected to a guide rod disposed along the length direction of the horizontal plate. The reciprocating component is connected to the slider through a connecting plate.

[0026] The reciprocating component and the transmission belt are connected by a fitting kit.

[0027] As a further embodiment of the present invention: the fitting kit includes a pulley rotatably mounted on the transmission belt and a fitting groove provided along the length direction of the reciprocating member, the pulley being able to roll within the fitting groove.

[0028] As a further aspect of the present invention: a detection sensor is also provided inside the water storage tank. The detection sensor is used to detect the diameter of the plastic tube and the traction speed of the plastic tube, and the detection sensor communicates with the first drive device and the second drive device.

[0029] Application of a circulating water cooling device as described above in plastic production and processing.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] By using the pump assembly and oscillating mechanism, when the cooling water is in the water storage tank during the cooling water circulation process, the oscillating plate can oscillate repeatedly to make the cooling water in the water storage tank ripple in a wave-like manner, which increases the contact area between the cooling water and the air, improves the heat exchange between the two, and to a certain extent avoids the temperature rise caused by the long-term use of the cooling water, thus improving the cooling effect of the cooling water.

[0032] By setting up air-cooling components and push components, the speed at which air enters the air-cooling box is accelerated, making the heat exchange between air and cooling water faster. At this time, the cooling water has a better cooling effect. At the same time, due to the reciprocating motion of the distributor head during the water guiding process, the cooling water descends in a serpentine manner in the air-cooling box, which increases the surface area of ​​cooling water within the effective pumping range of the fan blades, allowing the heat in the cooling water to be carried away more quickly. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of one embodiment of a circulating water cooling device.

[0034] Figure 2 This is a structural schematic diagram from another angle of one embodiment of the circulating water cooling device.

[0035] Figure 3 This is a schematic diagram of the pump assembly and the swing mechanism in one embodiment of a circulating water cooling device.

[0036] Figure 4 This is a schematic diagram of the pump assembly and the oscillating mechanism from another angle in one embodiment of a circulating water cooling device.

[0037] Figure 5 This is a schematic diagram of the structure of the air-cooling component and the push component in one embodiment of a circulating water-cooling device.

[0038] Figure 6 This is a schematic diagram of the air-cooling component and the push component from another angle in one embodiment of a circulating water-cooling device.

[0039] Figure 7 for Figure 6 Enlarged view of the structure at point A in the middle.

[0040] Figure 8 An exploded view of the pusher component in one embodiment of a circulating water cooling device.

[0041] In the diagram: 1. Water storage tank; 2. Drive unit 1; 3. Impeller pump; 4. Belt 1; 5. Bevel gear set 1; 6. Turntable; 7. Connecting rod; 8. Swivel plate; 9. Air-cooled box; 10. Inclined plate; 11. Horizontal plate; 12. Slide groove; 13. Sliding block; 14. Distributor head; 15. Drive unit 2; 16. Belt 2; 17. Fan blade; 18. Bevel gear set 2; 19. Transmission wheel; 20. Transmission belt; 21. Pulley; 22. Reciprocating component; 23. Fitting groove; 24. Sliding sleeve; 25. Guide rod; 26. Connecting plate; 27. Bellows; 28. Conduit; 29. ​​Detection sensor. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0044] Please see Figures 1 to 8In this embodiment of the invention, a circulating water cooling device includes: a water storage tank 1, a pump assembly, an air cooling assembly, a swing mechanism, and a pushing assembly, which is used to cool the cooling water in the water storage tank 1. This effectively avoids the cooling water's own temperature rising due to prolonged heat exchange with the plastic pipe, thus reducing its cooling effect and preventing the risk of the plastic pipe bending or even breaking due to poor cooling effect.

[0045] Specifically, the water storage tank 1 contains cooling water for cooling the plastic pipes;

[0046] The pump assembly is connected to the water storage tank 1, and the pump assembly is used to pump out the cooling water in the water storage tank 1 and pump it back into the water storage tank 1.

[0047] The swing mechanism is installed inside the water storage tank 1. The swing mechanism includes a transmission component and a deflector plate 8. The transmission component can drive the deflector plate 8 to deflect when the pumping component is activated.

[0048] The pump assembly includes a first drive device 2 fixedly installed inside the water storage tank 1, and the output shaft of the first drive device 2 is connected to an impeller pump 3 installed inside the water storage tank 1.

[0049] The inlet of the impeller pump 3 is connected to the inside of the water storage tank 1, and the outlet is connected to the liquid separator 14 through the conduit 28.

[0050] The output shaft of the first drive device 2 is also connected to the transmission assembly. The transmission assembly includes a first bevel gear set 5 rotatably installed in the water storage tank 1. The first bevel gear set 5 is connected to the output shaft of the first drive device 2 via a first belt 4.

[0051] The first bevel gear set 5 is connected to a turntable 6 rotatably installed inside the water storage tank 1. A connecting rod 7 is rotatably installed on the turntable 6, and the end of the connecting rod 7 away from the turntable 6 is rotatably connected to the deflector plate 8.

[0052] The first bevel gear set 5 includes a first bevel gear and a second bevel gear that are rotatably installed inside the water storage tank 1 and mesh with each other. The first bevel gear is connected to the first belt 4, and the second bevel gear is coaxially and fixedly connected to the turntable 6.

[0053] In use, the No. 1 drive device 2 operates, driving the impeller pump 3 connected to the output shaft of the No. 1 drive device 2 to rotate, so as to draw cooling water from the water storage tank 1. After the cooling water is drawn, it enters the liquid distributor 14 through the conduit 28. Then the cooling water in the liquid distributor 14 flows back to the water storage tank 1 by the air-cooling component, realizing the circulation of cooling water. At the same time, the air-cooling component can cool the cooling water, thereby avoiding the cooling water temperature from rising during long-term heat exchange, which would reduce the cooling effect on the plastic tube.

[0054] When the No. 1 drive device 2 is working, the output shaft of the No. 1 drive device 2 drives the turntable 6 to rotate synchronously through the No. 1 belt 4 and the No. 1 bevel gear set 5, so that the hinge point of the connecting rod 7 on the turntable 6 makes circular motion. This hinge point pulls the connecting rod 7, causing the sway plate 8 to sway repeatedly in the water storage tank 1, so that the cooling water in the water storage tank 1 ripples in a wave-like manner, thereby increasing the contact area between the cooling water and the air in the water storage tank 1, thereby increasing the heat exchange between the cooling water and the air, and thus dissipating the heat in the cooling water to the air to a certain extent, thereby cooling the cooling water to a certain extent.

[0055] The end of the connecting rod 7 away from the turntable 6 is connected to the upright rod set on the sway plate 8. The distance between the hinge point of the upright rod and the connecting rod 7 and the swing center of the sway plate 8 is greater than the distance between the hinge point of the connecting rod 7 on the turntable 6 and the rotation center of the turntable 6. This allows the sway plate 8 to only sway at a certain angle when the turntable 6 makes one circular motion, and to achieve reciprocating motion so that the coolant ripples.

[0056] It should be noted that in order to drive the impeller pump 3 to rotate and draw cooling water from the water storage tank 1, the first drive device 2 rotates at a relatively high speed. This ensures the speed at which cooling water is drawn from the water storage tank 1. The first belt 4 is a reduction belt. Among the two pulleys connected to it, the circumference radius of the pulley connected to the output shaft of the first drive device 2 is smaller than the circumference radius of the pulley connected to the first bevel gear set 5. As a result, when the first drive device 2 rotates several times, the first bevel gear set 5 only drives the turntable 6 to rotate one revolution, which has a deceleration effect. On the one hand, this avoids the swaying speed of the sway plate 8 from being too fast, which would cause cooling water to splash and waste. On the other hand, it reduces the load on the output shaft of the first drive device 2 and improves the durability of the first drive device 2.

[0057] With the above settings, when the cooling water is in the water storage tank 1 during the cooling water circulation process, the deflector plate 8 can repeatedly deflect to make the cooling water in the water storage tank 1 ripple in a wave-like manner, which increases the contact area between the cooling water and the air, improves the heat exchange between the two, and to a certain extent avoids the temperature rise caused by the long-term use of the cooling water, thus improving the cooling effect of the cooling water.

[0058] Please see Figures 5-8 The air-cooling component connects the pump liquid assembly and the water storage tank 1, and the air-cooling component can air-cool the cooling water;

[0059] The air-cooled assembly includes an air-cooled box 9 disposed on the side of the water storage tank 1. A through hole is provided on one side of the air-cooled box 9, a fan blade 17 is rotatably installed in the through hole, and an inclined plate 10 is provided inside the air-cooled box 9.

[0060] The air-cooling assembly also includes a second drive device 15 fixedly installed outside the air-cooling box 9. The output shaft of the second drive device 15 is connected to the rotating shaft of the fan blade 17 via a second belt 16, and the output shaft of the second drive device 15 is connected to the push assembly via a second bevel gear set 18.

[0061] The air-cooled box 9 is connected to the water storage tank 1 via a return pipe;

[0062] The second bevel gear set 18 includes a third bevel gear and a fourth bevel gear that mesh with each other. The third bevel gear is connected to the pushing component, and the fourth bevel gear is coaxially and fixedly connected to the output shaft of the second drive device 15.

[0063] The push component is connected to the air-cooling component, and the push component is connected to a liquid distributor 14 that communicates with the pumping component. The push component can drive the liquid distributor 14 to reciprocate when the air-cooling component is activated.

[0064] The pushing component includes a horizontal plate 11 fixedly installed on the air-cooled box 9. The horizontal plate 11 has a groove 12 along its length. A slider 13 is slidably installed in the groove 12. The slider 13 is connected to the conduit 28 through a bellows 27, and the slider 13 is fixedly connected to the liquid separator 14.

[0065] The pushing component also includes an action structure connected to the second bevel gear set 18 and used to drive the slider 13 to reciprocate along the length direction of the slide groove 12. The action structure includes two transmission wheels 19 rotatably mounted on the horizontal plate 11, and a transmission belt 20 is sleeved between the two transmission wheels 19.

[0066] The actuation structure also includes a reciprocating component 22 disposed on the horizontal plate 11. Two sliding sleeves 24 are symmetrically disposed on the reciprocating component 22. The sliding sleeves 24 are slidably connected to a guide rod 25 disposed along the length direction of the horizontal plate 11. The reciprocating component 22 is connected to the slider 13 through a connecting plate 26.

[0067] The reciprocating component 22 is connected to the transmission belt 20 by a fitting kit. The fitting kit includes a pulley 21 rotatably mounted on the transmission belt 20 and a fitting groove 23 arranged along the length direction of the reciprocating component 22. The pulley 21 can roll in the fitting groove 23.

[0068] When cooling water enters the distributor head 14 through the conduit 28, it flows out from the outlet of the distributor head 14. The outlet of the distributor head 14 is relatively flat, and the conduction area of ​​the outlet of the distributor head 14 is the same as that of the conduit 28, ensuring that the outlet of the distributor head 14 is filled with cooling water as it flows through it. At the same time, the second drive device 15 works and drives the fan blade 17 to rotate through the second belt 16. At this time, the fan blade 17 can pump outside air into the air-cooled box 9 and act on the cooling water flowing out from the outlet of the distributor head 14 to cool the cooling water. Under the guidance of the outlet of the distributor head 14, the cooling water flows out in a relatively flat shape, which increases the contact area between the cooling water and the air, further improving the cooling effect of the cooling water.

[0069] When the second drive unit 15 is working, the second drive unit 15 drives one of the transmission wheels 19 to rotate through the second bevel gear set 18, which causes the transmission belt 20 sleeved on the two transmission wheels 19 to move. The transmission belt 20 can be regarded as being composed of two straight segments and two circumferential segments. When the transmission belt 20 moves continuously, under the action of the pulley 21 and the fitting groove 23, the reciprocating part 22 moves back and forth along the length direction of the guide rod 25, thereby driving the slider 13 to move back and forth in the sliding groove 12, and driving the liquid distributor 14 to move back and forth. That is, the liquid distributor 14 moves back and forth during the water guiding process, so that the cooling water descends in a serpentine manner in the air-cooled box 9, thereby increasing the area of ​​cooling water within the effective pumping range of the fan blade 17, and allowing the heat in the cooling water to be carried away more quickly.

[0070] It should also be noted that the bottom of the air-cooled box 9 is at the same height as the cooling water level in the water storage tank 1, so that the water entering the air-cooled box 9 can flow back into the water storage tank 1.

[0071] The above settings accelerate the speed at which air enters the air-cooled box 9, resulting in faster heat exchange between the air and the cooling water. This leads to a better cooling effect of the cooling water. At the same time, the reciprocating motion of the distributor head 14 during the water guiding process causes the cooling water to descend in a serpentine manner within the air-cooled box 9, thereby increasing the surface area of ​​the cooling water within the effective pumping range of the fan blades 17 and allowing the heat in the cooling water to be carried away more quickly.

[0072] The water storage tank 1 is also equipped with a detection sensor 29, which is used to detect the diameter of the plastic pipe and the traction speed of the plastic pipe. The detection sensor 29 communicates with the first drive device 2 and the second drive device 15.

[0073] The aforementioned detection sensor 29 integrates a speed sensor and a vision detection unit. The speed sensor can detect the traction speed of the plastic tube and control the power of the first drive device 2 and the second drive device 15 based on the detection result. This ensures that when the plastic tube is tractioned at a faster speed, the first drive device 2 and the second drive device 15 have greater power, thus increasing the cooling effect. The vision detection unit can acquire a side view image of the plastic tube and compare it with images in the database to obtain the diameter of the plastic tube during production. The power of the first drive device 2 and the second drive device 15 is then controlled based on the diameter. This ensures that when producing plastic tubes with larger diameters, the first drive device 2 and the second drive device 15 have greater power, thus increasing the cooling effect.

[0074] Application of a circulating water cooling device as described above in plastic production and processing.

[0075] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0076] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A circulating water cooling device, comprising: A water storage tank (1) is provided, which contains cooling water for cooling plastic pipes. The pump assembly is connected to the water storage tank (1). The pump assembly is used to pump out the cooling water in the water storage tank (1) and pump it back into the water storage tank (1). An air-cooled assembly connects the pump assembly to the water storage tank (1), and the air-cooled assembly is capable of air-cooling the cooling water; Its features include: A swing mechanism is provided inside the water storage tank (1). The swing mechanism includes a transmission component and a deflector plate (8). The transmission component can drive the deflector plate (8) to deflect when the pumping component is activated. A push component is connected to the air-cooling component. The push component is connected to a liquid separator (14) that communicates with the pumping component. The push component can drive the liquid separator (14) to reciprocate when the air-cooling component is in operation.

2. The circulating water cooling device according to claim 1, characterized in that, The pump assembly includes a first drive device (2) fixedly installed inside the water storage tank (1), and the output shaft of the first drive device (2) is connected to an impeller pump (3) installed inside the water storage tank (1). The inlet of the impeller pump (3) is connected to the inside of the water storage tank (1), and the outlet is connected to the liquid separator (14) through the conduit (28); The output shaft of the first drive device (2) is also connected to the transmission assembly.

3. The circulating water cooling device according to claim 2, characterized in that, The transmission assembly includes a first bevel gear set (5) rotatably installed inside the water storage tank (1), and the first bevel gear set (5) is connected to the output shaft of the first drive device (2) via a first belt (4); The first bevel gear set (5) is connected to a turntable (6) rotatably installed inside the water storage tank (1). A connecting rod (7) is rotatably installed on the turntable (6). The end of the connecting rod (7) away from the turntable (6) is rotatably connected to the deflector plate (8).

4. The circulating water cooling device according to claim 2, characterized in that, The air-cooled assembly includes an air-cooled box (9) disposed on the side of the water storage tank (1), a through hole is provided on one side of the air-cooled box (9), a fan blade (17) is rotatably installed in the through hole, and an inclined plate (10) is provided inside the air-cooled box (9). The air-cooling assembly also includes a second drive device (15) fixedly installed outside the air-cooling box (9). The output shaft of the second drive device (15) is connected to the rotating shaft of the fan blade (17) via a second belt (16), and the output shaft of the second drive device (15) is connected to the push assembly via a second bevel gear set (18). The air-cooled box (9) is connected to the water storage tank (1) through a return pipe.

5. A circulating water cooling device according to claim 4, characterized in that, The pushing component includes a horizontal plate (11) fixedly installed on the air-cooled box (9). The horizontal plate (11) has a groove (12) along its length. A slider (13) is slidably installed in the groove (12). The slider (13) is connected to the conduit (28) through a corrugated pipe (27). The slider (13) is fixedly connected to the liquid separator (14). The pushing component also includes an action structure connected to the second bevel gear set (18) and used to drive the slider (13) to reciprocate along the length direction of the slide groove (12).

6. A circulating water cooling device according to claim 5, characterized in that, The actuation structure includes two drive wheels (19) rotatably mounted on the horizontal plate (11), and a drive belt (20) is sleeved between the two drive wheels (19); The action structure also includes a reciprocating component (22) disposed on the horizontal plate (11). Two sliding sleeves (24) are symmetrically disposed on the reciprocating component (22). The sliding sleeves (24) are slidably connected to a guide rod (25) disposed along the length direction of the horizontal plate (11). The reciprocating component (22) is connected to the slider (13) through a connecting plate (26). The reciprocating component (22) and the transmission belt (20) are connected by a fitting kit.

7. A circulating water cooling device according to claim 6, characterized in that, The fitting assembly includes a pulley (21) rotatably mounted on the transmission belt (20) and a fitting groove (23) arranged along the length of the reciprocating member (22), the pulley (21) being able to roll within the fitting groove (23).

8. A circulating water cooling device according to claim 4, characterized in that, The water storage tank (1) is also equipped with a detection sensor (29), which is used to detect the diameter of the plastic pipe and the traction speed of the plastic pipe. The detection sensor (29) communicates with the first drive device (2) and the second drive device (15).

9. The application of the circulating water cooling device as described in claim 1 in plastic production and processing.

Images