Double-circulation cooling device for plastic parts

Abstract

The utility model discloses a double-circulation cooling device for plastic parts, which relates to the technical field of plastic part cooling and comprises a cooling box, a concave conveyor belt is arranged in the cooling box, and a liquid discharge groove extending out of the lower side surface of the concave conveyor belt is arranged on the upper side surface of the concave conveyor belt. A low-temperature cooling box and a high-temperature cooling box are fixedly connected to the upper side surface of the cooling box, a first storage box and a second storage box are fixedly connected to the lower side surface of the cooling box, and conveying pipes are arranged on the outer surfaces of the low-temperature cooling box and the high-temperature cooling box; the low-temperature cooling box and the high-temperature cooling box are connected with the first storage box and the second storage box through conveying pipes correspondingly, plastic parts are rapidly cooled through cold air and low-temperature cooling liquid, and then the temperature of the plastic parts is controlled through the high-temperature cooling liquid with the higher temperature. And the problem that the strength of the plastic part is changed due to high cooling speed is avoided.

Description

Technical Field

[0001] This utility model relates to the field of plastic parts cooling technology, and in particular to a dual-circulation cooling device for plastic parts. Background Technology

[0002] Plastic parts refer to various components or products made primarily of plastic through molding processes such as injection molding, extrusion, and blow molding. Plastics have advantages such as being lightweight, corrosion-resistant, having good insulation properties, and being easy to process and mold, and are therefore widely used in many fields such as automobiles, electronics, home appliances, packaging, and construction.

[0003] Since plastic parts need to be heated and melted during the production process to shape the plastic, cooling is required to ensure the microstructure of the plastic, such as crystallinity and orientation. However, the existing cooling method usually involves a blower drawing cold air to directly blow onto the plastic parts for air cooling. This cooling method is not convenient for controlling the cooling rate and the uniformity of the cooling. Therefore, we propose a dual-circulation cooling device for plastic parts. Utility Model Content

[0004] The purpose of this invention is to provide a dual-circulation cooling device for plastic parts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-circulation cooling device for plastic parts, comprising a cooling box, wherein a concave conveyor belt is provided inside the cooling box, and a drain groove extending from the lower surface of the upper surface of the concave conveyor belt is formed thereon; a low-temperature cooling box and a high-temperature cooling box are fixedly connected to the upper surface of the cooling box; a first storage box and a second storage box are fixedly connected to the lower surface of the cooling box; a transmission pipe is provided on the outer surface of both the low-temperature cooling box and the high-temperature cooling box; the low-temperature cooling box and the high-temperature cooling box are respectively connected to the first storage box and the second storage box through the transmission pipe; a low-temperature nozzle and a high-temperature nozzle are fixedly connected to the top wall of the cooling box; the low-temperature nozzle and the high-temperature nozzle are respectively connected to the low-temperature cooling box and the high-temperature cooling box; and a cooling assembly is provided on the cooling box.

[0006] Preferably, the cooling assembly includes two fans, both of which are fixedly connected to the upper surface of the cooling box, and two first ventilation pipes are fixedly connected to the top wall of the cooling box, both of which are mirror-oriented and inclined.

[0007] Preferably, the two first ventilation pipes are respectively connected to the interior of the two fans, the top wall of the cooling box is fixedly connected to a baffle plate, the bottom wall of the cooling box has two guide grooves, and the bottom walls of the two guide grooves are fixedly connected to a support plate.

[0008] Preferably, a roller is rotatably connected to the upper surface of the support plate, the roller is in contact with the lower surface of the concave conveyor belt, and a through groove is provided on the bottom wall of both guide grooves.

[0009] Preferably, the two through slots are respectively connected to the interior of the first storage box and the second storage box, and temperature sensors are provided inside the first storage box and the second storage box. A heating plate is connected to the lower surface of the second storage box.

[0010] Preferably, a heating tube is provided on the heating plate, an mounting plate is fixedly connected to the lower surface of the first storage box, a heat-conducting plate is fixedly connected to the upper surface of the mounting plate, and the upper surface of the heat-conducting plate penetrates into the interior of the first storage box.

[0011] Preferably, heat dissipation fins are fixedly connected to the lower surface of the mounting plate, filter plates are provided on the inner walls of both through slots, an auxiliary cooling pipe is fixedly connected to the bottom wall of the cooling box, an air outlet is opened on the front surface of the auxiliary cooling pipe, a first guide plate is fixedly connected to the top wall of the auxiliary cooling pipe, and a second guide plate is fixedly connected to the bottom wall of the auxiliary cooling pipe.

[0012] Preferably, the first guide plate is conical, the second guide plate is triangular, and the surfaces of both fans are provided with second ventilation pipes, both of which are connected to the interior of the auxiliary cooling pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This dual-circulation cooling device for plastic parts rapidly cools the plastic parts using cold air and low-temperature coolant, and then controls the temperature of the plastic parts using a slightly higher-temperature coolant, thus preventing changes in the strength of the plastic parts due to rapid cooling.

[0015] 2. The dual-circulation cooling device for the plastic parts can quickly remove the temperature from the surface of the heat dissipation fins with the help of cold air through the auxiliary cooling pipe, thereby increasing the cooling speed of the coolant inside the first storage tank. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of the dual-circulation cooling device for plastic parts of this utility model;

[0018] Figure 2 This is a cross-sectional view of the cooling box of this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the auxiliary cooling pipe of this utility model;

[0020] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0021] Reference numerals: 1. Cooling box; 2. Concave conveyor belt; 3. Drainage trough; 4. Low-temperature cooling box; 5. High-temperature cooling box; 6. First storage box; 7. Second storage box; 8. Transfer pipe; 9. Low-temperature nozzle; 10. High-temperature nozzle; 11. Fan; 12. First ventilation pipe; 13. Baffle plate; 14. Guide groove; 15. Support plate; 16. Roller; 17. Through groove; 18. Temperature sensor; 19. Heating plate; 20. Heating pipe; 21. Mounting plate; 22. Heat-conducting plate; 23. Heat dissipation fins; 24. Filter plate; 25. Auxiliary cooling pipe; 26. Air outlet; 27. First guide plate; 28. Second guide plate; 29. ​​Second ventilation pipe. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a dual-circulation cooling device for plastic parts, including a cooling box 1. A concave conveyor belt 2 is installed inside the cooling box 1. A drain trough 3 extending from the lower surface of the upper surface of the concave conveyor belt 2 is formed. A low-temperature cooling box 4 and a high-temperature cooling box 5 are fixedly connected to the upper surface of the cooling box 1. A first storage box 6 and a second storage box 7 are fixedly connected to the lower surface of the cooling box 1. Transmission pipes 8 are installed on the outer surfaces of both the low-temperature cooling box 4 and the high-temperature cooling box 5. The low-temperature cooling box 4 and the high-temperature cooling box 5 are respectively connected to the first storage box 6 and the second storage box 7 through the transmission pipes 8. A low-temperature nozzle 9 and a high-temperature nozzle 10 are fixedly connected to the top wall of the cooling box 1. The low-temperature nozzle 9 and the high-temperature nozzle 10 are respectively connected to the low-temperature cooling box 4 and the high-temperature cooling box 5. A cooling assembly is installed on the cooling box 1 to rapidly cool the plastic parts using cold air and low-temperature coolant. Subsequently, the temperature of the plastic parts is controlled by a slightly higher-temperature coolant, preventing changes in the strength of the plastic parts due to rapid cooling.

[0024] Furthermore, the cooling assembly includes two fans 11, both of which are fixedly connected to the upper surface of the cooling box 1. Two first ventilation pipes 12 are fixedly connected to the top wall of the cooling box 1, both of which are mirror-oriented and inclined. Each of the two first ventilation pipes 12 communicates with the interior of one of the two fans 11. A baffle plate 13 is fixedly connected to the top wall of the cooling box 1. Two guide grooves 14 are formed in the bottom wall of the cooling box 1. A support plate 15 is fixedly connected to the bottom wall of the two guide grooves 14. A roller 16 is rotatably connected to the upper surface of the support plate 15, and the roller 16 contacts the lower surface of the concave conveyor belt 2. A through groove 17 is formed in the bottom wall of each of the two guide grooves 14, and the two through grooves 17 communicate with the interior of the first storage box 6 and the second storage box 7, respectively. Temperature sensors 18 are installed inside both the first storage box 6 and the second storage box 7. A heating plate 19 is connected to the lower surface of the second storage box 7, and a heating pipe 20 is installed on the heating plate 19. A mounting plate 21 is fixedly connected to the lower surface of the first storage box 6. A heat-conducting plate 22 is fixedly connected to the upper surface of the mounting plate 21. The upper surface of the heat-conducting plate 22 penetrates into the interior of the first storage box 6. A heat dissipation fins 23 are fixedly connected to the lower surface of the mounting plate 21. Filter plates 24 are provided on the inner walls of the two through slots 17. An auxiliary cooling pipe 25 is fixedly connected to the bottom wall of the cooling box 1. An air outlet 26 is opened on the front surface of the auxiliary cooling pipe 25. A first guide plate 27 is fixedly connected to the top wall of the auxiliary cooling pipe 25. A second guide plate 28 is fixedly connected to the bottom wall of the auxiliary cooling pipe 25. The first guide plate 27 is conical, and the second guide plate 28 is triangular. A second ventilation pipe 29 is provided on the surface of the two fans 11. The two second ventilation pipes 29 are connected to the interior of the auxiliary cooling pipe 25. The auxiliary cooling pipe 25 can quickly remove the temperature of the surface of the heat dissipation fins 23 with the help of cold air, thereby improving the cooling speed of the coolant inside the first storage box 6.

[0025] The fan 11 is also equipped with a power supply, wires, controller and microcomputer, and the low temperature cooling box 4 and the high temperature cooling box 5 are both equipped with pumps for transmission.

[0026] Working Principle: When cooling the plastic workpiece, the workpiece is placed on the concave conveyor belt 2, which moves it into the cooling box 1. Two fans 11, in conjunction with the first ventilation pipe 12, cool the workpiece. Simultaneously, low-temperature coolant (below 20 degrees Celsius) stored in the low-temperature cooling box 4 is sprayed onto the surface of the workpiece through low-temperature nozzles 9 for initial cooling. The workpiece then moves to the underside of the high-temperature nozzles 10, where high-temperature coolant (above 30 degrees Celsius) is transferred from the high-temperature cooling box 5 to the high-temperature nozzles 10 for secondary cooling. During spraying, the baffle plate 13 and support plate 15 prevent the high-temperature and low-temperature coolants from crossing boundaries. The support plate 15 also helps prevent deformation of the concave conveyor belt 2. The sprayed coolant flows through the guide channel 14 into the interior of the two through channels 17, and is filtered by the filter plate 24 inside the through channel 17. The filtered coolant enters the interior of the first storage tank 6 and the second storage tank 7 respectively. The internal temperature of the first storage tank 6 and the second storage tank 7 is detected in real time by the temperature sensor 18, and the signal is sent to the control terminal. The coolant inside the second storage tank 7 is heated in time by the heating pipe 20. At the same time, the coolant inside the first storage tank 6 is cooled by the cooperation of the heat conduction plate 22, the mounting plate 21 and the heat dissipation fins 23. During the cooling, the air blown out by the two fans can also enter the interior of the auxiliary cooling pipe 25 through the second ventilation pipe 29. The cooperation of the first guide plate 27 and the second guide plate 28 allows the cold air to pass smoothly through the air outlet 26 and come into contact with the heat dissipation fins 23.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. Device for double circulation cooling of plastic pieces, comprising a cooling tank (1), characterized in that: The cooling box (1) is equipped with a concave conveyor belt (2) inside. The upper surface of the concave conveyor belt (2) is provided with a drain groove (3) extending to its lower surface. The upper surface of the cooling box (1) is fixedly connected to a low-temperature cooling box (4) and a high-temperature cooling box (5). The lower surface of the cooling box (1) is fixedly connected to a first storage box (6) and a second storage box (7). The outer surfaces of the low-temperature cooling box (4) and the high-temperature cooling box (5) are provided with transmission pipes (8). The low-temperature cooling box (4) and the high-temperature cooling box (5) are respectively connected to the first storage box (6) and the second storage box (7) through the transmission pipes (8). The top wall of the cooling box (1) is fixedly connected to a low-temperature nozzle (9) and a high-temperature nozzle (10). The low-temperature nozzle (9) and the high-temperature nozzle (10) are respectively connected to the low-temperature cooling box (4) and the high-temperature cooling box (5). The cooling box (1) is equipped with a cooling assembly.

2. The apparatus of claim 1, wherein: The cooling assembly includes two fans (11), both of which are fixedly connected to the upper surface of the cooling box (1). The top wall of the cooling box (1) is fixedly connected to two first ventilation pipes (12), both of which are mirror-oriented and inclined.

3. The apparatus of claim 2, wherein: The two first ventilation pipes (12) are respectively connected to the interior of the two fans (11). The top wall of the cooling box (1) is fixedly connected to a baffle plate (13). The bottom wall of the cooling box (1) has two guide grooves (14). The bottom walls of the two guide grooves (14) are fixedly connected to a support plate (15).

4. The apparatus of claim 3, wherein: The upper surface of the support plate (15) is rotatably connected to a roller (16), which is in contact with the lower surface of the concave conveyor belt (2). The bottom walls of the two guide grooves (14) are provided with through grooves (17).

5. The dual-circulation cooling device for plastic parts according to claim 4, characterized in that: The two through slots (17) are respectively connected to the interior of the first storage box (6) and the second storage box (7). Temperature sensors (18) are provided inside the first storage box (6) and the second storage box (7). A heating plate (19) is connected to the lower surface of the second storage box (7).

6. The apparatus of claim 5, wherein: Heating tubes (20) are provided on the heating plate (19). A mounting plate (21) is fixedly connected to the lower surface of the first storage box (6). A heat-conducting plate (22) is fixedly connected to the upper surface of the mounting plate (21). The upper surface of the heat-conducting plate (22) penetrates into the interior of the first storage box (6).

7. The apparatus of claim 6, wherein: The mounting plate (21) has heat dissipation fins (23) fixedly connected to its lower surface. The inner walls of the two through slots (17) are provided with filter plates (24). The bottom wall of the cooling box (1) is fixedly connected with an auxiliary cooling pipe (25). The front surface of the auxiliary cooling pipe (25) is provided with an air outlet (26). The top wall of the auxiliary cooling pipe (25) is fixedly connected with a first guide plate (27). The bottom wall of the auxiliary cooling pipe (25) is fixedly connected with a second guide plate (28).

8. The apparatus of claim 7, wherein: The first guide plate (27) is set in a conical shape, the second guide plate (28) is set in a triangular shape, and the surfaces of the two fans (11) are provided with second ventilation pipes (29), and the two second ventilation pipes (29) are connected to the interior of the auxiliary cooling pipe (25).

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