Modified plastic cooling apparatus

Abstract

The utility model relates to modified plastics cooling technical field especially relates to a kind of modified plastics cooling equipment, including water tank, guide roller, drainage component, water tank, backflow pipe, refrigerator, water pump, conveying pipe, water spraying component and connecting roller, water tank is provided with two, symmetrically arranged and mutually fixed connection, two water tanks are rotated and set with multiple guide rollers in wave shape distribution structure along length direction, water tank is installed in the right side of two water tank front parts, and backflow pipe is connected between water tank right end and the right side of water tank front part and keeps intercommunication.This equipment passes through left and right two independent temperature-controlling water tanks, constructs two-stage cooling stage of high-temperature zone and low-temperature zone, and the plastic profile is first cooled in left water tank, then enters right side lower temperature water tank and is cooled to shape, and the gradient cooling process effectively reduces the internal stress caused by temperature difference sudden change, avoids product deformation, warping and other problems, significantly improves the setting quality and dimensional stability of modified plastic profile.

Description

Technical Field

[0001] This utility model relates to the field of modified plastic cooling technology, and in particular to a modified plastic cooling device. Background Technology

[0002] In the production of modified plastics, the high-temperature plastic profiles extruded by the extruder need to be rapidly cooled and shaped to obtain the required final properties and dimensions. Traditional cooling methods often employ single-stage water bath cooling, where the plastic profiles are directly immersed in a constant-temperature coolant. This method is prone to causing internal stress in the product due to excessively rapid cooling rates or large temperature differences, leading to problems such as product deformation, warping, or uneven performance, thus affecting product quality.

[0003] Furthermore, traditional open cooling tanks often employ direct discharge or external circulation cooling methods. After the coolant exchanges heat with the plastic, its temperature rises, and it is often directly discharged or requires cooling through a large external cooling system before it can be recycled. This method not only results in a serious waste of coolant and energy and high operating costs, but also makes it difficult to achieve precise and stable control of the coolant temperature, thus restricting further improvements in production efficiency and cooling quality.

[0004] Therefore, there is an urgent need for a cooling device that can achieve controllable gradient cooling and maintain the working temperature of the coolant efficiently and energy-savingly, in order to solve the above-mentioned technical bottlenecks. Utility Model Content

[0005] In order to overcome the shortcomings mentioned in the background art, this utility model provides a modified plastic cooling device.

[0006] The technical implementation scheme of this utility model is as follows: A modified plastic cooling device includes a water tank, guide rollers, drainage components, a water tank, a return pipe, a cooler, a water pump, a conveying pipe, a water spray component, and a connecting roller. Two water tanks are provided, symmetrically arranged and fixedly connected to each other. Multiple guide rollers are rotatably arranged in a wave-shaped distribution structure along the length of the two water tanks. A water tank is installed on the right side of the front part of each water tank. A return pipe is connected between the right end of the water tank and the right side of the front part of the water tank and keeps them connected. A conveying pipe is connected between the left end of the water tank and the left side of the front part of the water tank and keeps them connected. A cooler is installed on the rear side of the inside of the water tank. A water pump is installed on the left side of the inside of the water tank. The outlet of the water pump is connected to the conveying pipe on the corresponding side and keeps them connected. Two water spray components are arranged at intervals on the bottom left side of the water tank. A connecting roller is rotatably connected to the top connection of the two water tanks through a mounting base. A drainage component is provided at the front of the water tank.

[0007] Optionally, the guide roller is coated with a polytetrafluoroethylene coating.

[0008] Optionally, the bottom of both water tanks is designed with a sloping structure that is higher on the left and lower on the right, with the water spray assembly located on the higher side of the slope and the return pipe interface located on the lower side of the slope.

[0009] Optionally, the drainage assembly includes a connecting pipe, a filter screen, and a solenoid valve. A connecting pipe is installed at the front of the water tank, located to the right of the return pipe, and is kept in contact with the water tank. A filter screen is installed at the rear end of the connecting pipe, and a solenoid valve is installed at the front end of the connecting pipe.

[0010] Optionally, it also includes a support frame and cleaning wheels. The support frame is installed on the upper right side of the right water tank, and a pair of cleaning wheels are symmetrically rotated inside the support frame.

[0011] Optionally, it also includes a collection box, which is installed on the right side wall of the lower part of the sink on the right side, and the collection box is located directly below the cleaning wheel.

[0012] The beneficial effects are as follows: 1. This equipment constructs a two-stage cooling process with two independently temperature-controlled water tanks on the left and right, namely a high-temperature zone and a low-temperature zone. The plastic profile is first initially cooled by the water tank on the left, and then enters the lower-temperature water tank on the right for shaping and cooling. This gradient cooling process effectively reduces the internal stress caused by sudden temperature changes, avoids problems such as product deformation and warping, and significantly improves the shaping quality and dimensional stability of the modified plastic profile.

[0013] 2. The equipment integrates a closed-loop circulation system consisting of a water tank, a chiller, a water pump, a water spray assembly, and a return pipe. After the coolant is continuously cooled by the chiller, it is pumped to the water tank, where it exchanges heat with the plastic and then naturally flows back to the water tank for recycling. This design not only ensures a constant coolant temperature and high heat exchange efficiency, but also greatly reduces coolant consumption, achieving the dual goals of energy saving, consumption reduction, and stable operation.

[0014] 3. The bottom of the water tank features a sloping structure, higher on the left and lower on the right, which, combined with the high-positioned water spray assembly, creates directional flow of the coolant. This ensures that the high-temperature coolant returns to the water tank for cooling in a timely manner, while also preventing impurities from accumulating. Combined with a dedicated drainage assembly, this makes coolant replacement and system maintenance simple and efficient, effectively filtering impurities and protecting the pipeline from blockages. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial sectional view of the first type of water tank component of this utility model.

[0017] Figure 3 This is a cross-sectional view of the water tank component of this utility model.

[0018] Figure 4 This is a second partial cross-sectional view of the water tank component of this utility model.

[0019] In the above attached diagram: 1: water tank, 2: guide roller, 3: connecting pipe, 4: filter screen, 5: solenoid valve, 6: water tank, 7: return pipe, 8: cooler, 9: water pump, 10: delivery pipe, 11: water spray assembly, 12: connecting roller, 13: support frame, 14: cleaning wheel, 15: collection box. Detailed Implementation

[0020] Example: A modified plastic cooling device, such as Figures 1-4 As shown, the system includes a water tank 1, guide rollers 2, a drainage assembly, a water tank 6, a return pipe 7, a cooler 8, a water pump 9, a delivery pipe 10, a water spray assembly 11, and a connecting roller 12. Two water tanks 1 are provided, arranged symmetrically and fixedly connected to each other. Multiple guide rollers 2 are rotatably arranged in a wave-like distribution along the length of each water tank 1. The guide rollers 2 are coated with a polytetrafluoroethylene coating, which has a low coefficient of friction and excellent anti-stick properties, preventing high-temperature plastic profiles from sticking to the roller surface and reducing scratches on the profile surface. A water tank 6 is screwed onto the front right side of each water tank 1. A return pipe 7 connects the right end of the water tank 6 to the front right side of the water tank 1, maintaining communication between them. A conveying pipe 10 is connected between the left end of the water tank 6 and the front left side of the water tank 1 and keeps them connected. A cooler 8 is bolted on the rear side inside the water tank 6. A water pump 9 is bolted on the left side inside the water tank 6. The outlet of the water pump 9 is connected to the conveying pipe 10 on the corresponding side. Two water spraying components 11 are spaced apart on the left side of the bottom inside the water tank 1. Several nozzles are opened at intervals along the length of the water spraying components 11. The bottom of both water tanks 1 is designed as an inclined structure with the left side higher than the right side. The water spraying components 11 are located on the higher side of the slope, and the return pipe 7 interface is located on the lower side of the slope. A connecting roller 12 is rotatably connected to the top connection of the two water tanks 1 through the mounting base. A drainage component is provided at the front of the water tank 1.

[0021] like Figure 2 As shown, the drainage assembly includes a connecting pipe 3, a filter screen 4, and a solenoid valve 5. The connecting pipe 3 is located at the front of the water tank 1, to the right of the return pipe 7, and is kept connected. The filter screen 4 is installed at the rear end of the connecting pipe 3 to intercept impurities. The solenoid valve 5 is installed at the front end of the connecting pipe 3. When it is necessary to replace the coolant in the water tank 1, the external recovery pipe is connected to the connecting pipe 3, the solenoid valve 5 is opened, and the coolant is discharged through the connecting pipe 3 under the action of gravity. The filter screen 4 intercepts solid impurities to prevent clogging of the recovery system. After the discharge is completed, the solenoid valve 5 is closed, and new coolant can be injected.

[0022] When using this device, coolant must be pre-filled into water tank 1. This equipment is used in conjunction with an extruder and is positioned on the extruder's discharge side. After the plastic is melted, plasticized, and homogenized in the extruder, it is extruded through the die head into multiple slender plastic profiles. The extruded plastic profiles are first guided into the left water tank 1 and travel along the wavy guide rollers 2, passing over the connecting roller 12 and then entering the right water tank 1. Guided by the guide rollers 2 inside the right water tank 1, they are finally output from the right side of the right water tank 1. Before operation, the cooler 8 is started to continuously cool the coolant in water tank 6. Simultaneously, the water pump 9 is started to pump the cooled coolant through the delivery pipe 10 to the water spray assembly 11, where it is evenly sprayed out from the nozzles, causing turbulence in the coolant within water tank 1, enhancing heat exchange efficiency. The plastic profile is immersed in the coolant to achieve full contact with it, thus achieving heat exchange and cooling. With the help of the inclined structure at the bottom of the tank, the coolant sprayed by the water spray component 11 is concentrated at a high position. The used coolant naturally flows to a low position and returns to the water tank 6 through the return pipe 7, where it is cooled again by the cooler 8, forming a closed loop. By adjusting the set temperature of the two coolers 8 respectively, the coolant temperature of the right water tank 1 can be lower than that of the left side. This allows the plastic profile to undergo preliminary cooling in the left water tank 1 before entering the right water tank 1 to receive cooler coolant for shaping and cooling. This segmented temperature-controlled cooling process helps to reduce internal stress and improve shaping quality. The guide roller 2 and the connecting roller 12 work together to guide, tension, and limit the plastic profile, ensuring the uniformity and stability of the cooling process.

[0023] like Figure 1 As shown, it also includes a support frame 1, cleaning wheels 14, and a collection frame 15. The support frame 13 is bolted to the upper right side of the water tank 1 on the right side. A pair of cleaning wheels 14 are symmetrically rotated inside the support frame 13. The two cleaning wheels 14 maintain a gap adapted to the size of the plastic profile, and the outer surface of the cleaning wheels 14 has a certain elasticity. A collection frame 15 is installed on the lower right side wall of the water tank 1 on the right side. The collection frame 15 is located directly below the cleaning wheels 14 and is used to collect the coolant and impurities that fall off during the cleaning process. After the plastic profile is cooled in two stages, it passes between the two cleaning wheels 14. The elastic surface of the wheels scrapes off the residual coolant and impurities adhering to the surface of the plastic profile. The removed liquid and impurities fall into the collection frame 15, which is convenient for centralized cleaning, keeping the production environment clean and improving the surface quality of the finished product.

Claims

1. A modified plastic cooling device, characterized in that: The system includes a water tank (1), guide rollers (2), drainage components, a water tank (6), a return pipe (7), a chiller (8), a water pump (9), a delivery pipe (10), a water spray component (11), and a connecting roller (12). There are two water tanks (1), which are symmetrically arranged and fixedly connected to each other. Multiple guide rollers (2) are rotatably arranged in a wave-shaped distribution structure along the length of the two water tanks (1). A water tank (6) is installed on the right side of the front part of each water tank (1). A return pipe is connected between the right end of the water tank (6) and the right side of the front part of the water tank (1). (7) and keep connected. A conveying pipe (10) is connected between the left end of the water tank (6) and the front left side of the water tank (1) and keeps connected. A cooler (8) is installed inside the rear side of the water tank (6). A water pump (9) is installed inside the left side of the water tank (6). The outlet of the water pump (9) is connected to the conveying pipe (10) on the corresponding side and keeps connected. Two water spraying components (11) are set at intervals on the bottom left side of the water tank (1). A connecting roller (12) is rotatably connected at the top connection of the two water tanks (1) through the mounting seat. A drainage component is provided at the front of the water tank (1).

2. A modified plastic cooling device according to claim 1, characterized in that: The guide roller (2) is coated with polytetrafluoroethylene.

3. A modified plastic cooling device according to claim 2, characterized in that: The bottom of both water tanks (1) is designed with a sloping structure that is higher on the left and lower on the right. The water spray assembly (11) is located on the higher side of the slope, and the return pipe (7) interface is located on the lower side of the slope.

4. A modified plastic cooling device according to claim 3, characterized in that: The drainage assembly includes a connecting pipe (3), a filter screen (4) and a solenoid valve (5). The front of the water tank (1) is located on the right side of the return pipe (7) and the connecting pipe (3) is connected. The filter screen (4) is installed at the rear port of the connecting pipe (3) and the solenoid valve (5) is installed at the front port of the connecting pipe (3).

5. A modified plastic cooling device according to claim 4, characterized in that: It also includes a support frame (13) and cleaning wheels (14). The support frame (13) is installed on the upper right side of the water tank (1). A pair of cleaning wheels (14) are symmetrically rotated inside the support frame (13).

6. A modified plastic cooling device according to claim 5, characterized in that: It also includes a collection box (15), which is installed on the lower right side wall of the water tank (1) on the right side. The collection box (15) is located directly below the cleaning wheel (14).

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