Air pressure liquid cooling system for mold

Abstract

The utility model relates to injection molding equipment technical field, concretely relates to a mould is with pneumatic pressure liquid cooling system, including pneumatic system and water cooling system, pneumatic system includes frequency conversion compressor, gas holder, gas guide pipe and gas outlet, water cooling system includes water cooling machine, controller, water storage pool, water pump, air cooling heat dissipation module, water guide pipe, water storage jar, nonreturn valve, first solenoid valve, pressure sensor and liquid level sensor, and the water outlet of water storage jar is fixedly connected with water delivery pipe, and the upper end of gas holder and gas holder is fixedly connected, and the left end gas outlet of gas holder is fixedly connected with gas delivery pipe, and the right end gas outlet of gas holder is fixedly connected with air inlet pipe between first solenolen valve, water cooling machine carries out cooling to normal temperature water, and water storage jar stores cooling water, and then sends cooling water through water storage jar, effectively keeps the stability of cooling water temperature, improves the cooling quality to product, realizes automatic water storage simultaneously, and effectively keeps the stability of the internal pressure of water storage jar, improves the stability of water output.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, specifically to a pneumatic liquid cooling system for molds. Background Technology

[0002] Injection molding is a method of shaping industrial products. Products are usually made using rubber injection molding and plastic injection molding. Injection molding machines are used in the injection molding process. They are the main molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting materials. Injection molding is achieved through injection molding machines and molds. In order to cool and solidify the product quickly, coolant is usually injected into the injection mold to accelerate the cooling and solidification of the product, thereby improving the production efficiency of the equipment.

[0003] In the current process of injection, the coolant is usually pumped from the reservoir to the mold. However, when multiple machines are supplied with water at the same time, the coolant in the reservoir is consumed quickly and needs to be replenished in time. However, the temperature of the newly added water is usually high, which will cause the water temperature in the reservoir to rise, making it impossible to cool in time and easily affecting the quality of the injection molded products.

[0004] Therefore, it is necessary to invent a pneumatic liquid cooling system for molds to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a pneumatic liquid cooling system for molds, in order to solve the problem that the water temperature inside the water storage tank will rise during the water addition process, making it impossible to cool in time and easily affecting the quality of injection molded products.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic-liquid cooling system for molds, comprising a pneumatic system and a water cooling system. The pneumatic system includes a variable frequency compressor, a gas storage tank, a gas guide pipe, and a gas outlet. The water cooling system includes a water chiller, a controller, a water storage tank, a water pump, an air-cooled heat dissipation module, a water guide pipe, a water storage tank, a one-way valve, a first solenoid valve, a pressure sensor, and a liquid level sensor. A water supply pipe is fixedly connected to the outlet of the water storage tank. The gas outlet is fixedly connected to the upper end of the gas storage tank. A gas supply pipe is fixedly connected to the left outlet of the gas outlet. An air inlet pipe is fixedly connected between the right outlet of the gas outlet and the first solenoid valve.

[0007] By adopting the above technical solution, the pneumatic system is used to compress and store air, and the water cooling system is used to cool and store room temperature water.

[0008] Optionally, the two ends of the air guide pipe are fixedly connected to the variable frequency compressor and the air storage tank, respectively, and a pressure gauge is fixedly installed on the surface of the air storage tank.

[0009] By adopting the above technical solution, the variable frequency compressor is used to compress air and deliver it to the air storage tank for storage, and the pressure gauge can monitor the internal pressure of the air storage tank.

[0010] Optionally, a second solenoid valve is fixedly installed at the end of the gas pipeline away from the gas storage tank.

[0011] By adopting the above technical solution, the end of the gas supply pipe away from the gas storage tank is connected to the injection molding equipment, and the second solenoid valve is used to open and close the gas supply pipe, so that air is blown into the injection molding equipment to assist in the feeding of materials.

[0012] Optionally, a third solenoid valve is fixedly installed at the end of the water supply pipe away from the water storage tank.

[0013] By adopting the above technical solution, the end of the water supply pipe away from the water storage tank is connected to the water inlet on the surface of the injection mold, and the third solenoid valve is used to open and close the water supply pipe, so that cooling water flows into the mold and cools the product.

[0014] Optionally, the controller is fixedly installed at the front end of the water chiller, and the air-cooled heat dissipation module is fixedly installed at the top of the water chiller.

[0015] By adopting the above technical solution, the controller is used to control the water chiller, the air-cooled heat dissipation module and the water pump.

[0016] Optionally, the water storage tank is fixedly installed at the rear of the water chiller, the water pump is fixedly installed at the front of the water chiller, the water inlet of the water pump is fixedly connected to the water storage tank through a pipe, and the front end of the water guide pipe is fixedly connected to the water outlet of the water pump.

[0017] By adopting the above technical solution, the water storage tank is used to temporarily store room temperature water, which is cooled by a water chiller, the air-cooled heat dissipation module is used to dissipate heat from the water chiller, and the water pump is used to pump the cooled water inside the water storage tank.

[0018] Optionally, the one-way valve is fixedly installed at the front of the water storage tank, and the rear end of the water guide pipe is fixedly connected to the one-way valve.

[0019] By adopting the above technical solution, the one-way valve is used to prevent the backflow of cooling water inside the water storage tank.

[0020] Optionally, the first solenoid valve, pressure sensor, and level sensor are all installed at the top of the water storage tank.

[0021] By adopting the above technical solution, the first solenoid valve is used to control the opening and closing of the air inlet pipe, the pressure sensor is used to monitor the internal pressure of the water storage tank, and the liquid level sensor is used to monitor the liquid level inside the water storage tank.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model utilizes a water chiller to cool the room temperature water inside the water storage tank, and simultaneously uses a water pump to transport the cooled water to a storage tank for storage. Then, the pressure inside the storage tank is used to transport the cooling water to the mold, effectively maintaining the stability of the cooling water temperature and improving the cooling quality of the product. 2. This utility model monitors the liquid level inside the water storage tank using a liquid level sensor. When the liquid level is below the threshold, the water pump is automatically started to input the cooled water into the water storage tank to achieve automatic water storage. At the same time, the pressure sensor monitors the pressure inside the water storage tank. When the pressure is lower than the normal value at the standard water level, the first solenoid valve is activated, and the air inlet pipe and air pressure system work together to pressurize the inside of the water storage tank, maintain the stability of the internal pressure of the water storage tank, and improve the stability of the water output. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the pneumatic system structure of this utility model; Figure 3 This is a schematic diagram of the water cooling system structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the water chiller of this utility model; Figure 5 This is a schematic diagram of the water storage tank structure of this utility model.

[0024] Explanation of reference numerals in the attached figures: 1. Pneumatic system; 11. Variable frequency compressor; 12. Air tank; 13. Air pipe; 14. Pressure gauge; 15. Air outlet; 2. Water cooling system; 21. Water chiller; 22. Controller; 23. Water storage tank; 24. Water pump; 25. Air-cooled heat dissipation module; 26. Water pipe; 27. Water storage tank; 28. Check valve; 29. ​​First solenoid valve; 210. Pressure sensor; 211. Liquid level sensor; 3. Air supply pipe; 31. Second solenoid valve; 4. Air inlet pipe; 5. Water supply pipe; 51. Third solenoid valve. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1 and Figure 2The illustrated mold pneumatic-liquid cooling system includes a pneumatic system 1 and a water cooling system 2. The pneumatic system 1 includes a variable frequency compressor 11, an air tank 12, an air guide pipe 13, and an air outlet 15. The two ends of the air guide pipe 13 are fixedly connected to the variable frequency compressor 11 and the air tank 12, respectively. A pressure gauge 14 is fixedly installed on the surface of the air tank 12. The air outlet 15 is fixedly connected to the upper end of the air tank 12. An air supply pipe 3 is fixedly connected to the air outlet on the left end of the air outlet 15. A second solenoid valve 31 is fixedly installed on the end of the air supply pipe 3 away from the air tank 12.

[0027] Among them, the gas supply pipe 3 is used to transport high-pressure gas into the injection molding equipment for auxiliary equipment to feed materials, and the second solenoid valve 31 is used to control the exhaust volume.

[0028] During use, the variable frequency compressor 11 compresses the external air and stores the compressed air inside the air tank 12 through the air guide pipe 13. At the same time, the pressure surface 14 monitors the pressure inside the air tank 12. When the air pressure reaches the highest threshold, the variable frequency compressor 11 is turned off. When the air pressure reaches the lowest threshold, the variable frequency compressor 11 is turned on. When compressed gas is needed to assist in feeding, the second solenoid valve 31 is opened, and the compressed air will be discharged from the air tank 12 for use.

[0029] See Figures 3 to 5 The water cooling system 2 includes a water chiller 21, a controller 22, a water storage tank 23, a water pump 24, an air-cooled heat dissipation module 25, a water pipe 26, a water storage tank 27, a one-way valve 28, a first solenoid valve 29, a pressure sensor 210, and a liquid level sensor 211. The outlet of the water storage tank 27 is fixedly connected to a water supply pipe 5, and a third solenoid valve 51 is fixedly installed at the end of the water supply pipe 5 away from the water storage tank 27.

[0030] The water supply pipe 5 is used to deliver cooling water to the inside of the injection mold, and the end of the water supply pipe 5 away from the water storage tank 27 is connected to multiple sets of water injection ports on the surface of the injection mold.

[0031] During use, the third solenoid valve 51 is opened, and the cooling water inside the water tank 27 is injected into the injection mold through the water pipe 5 to cool the injection molded product.

[0032] See Figures 1 to 5An air inlet pipe 4 is fixedly connected between the air outlet on the right end of the air outlet 15 and the first solenoid valve 29. The controller 22 is fixedly installed at the front end of the water chiller 21. The air-cooled heat dissipation module 25 is fixedly installed at the upper end of the water chiller 21. The water storage tank 23 is fixedly installed at the rear side inside the water chiller 21. The water pump 24 is fixedly installed at the front side inside the water chiller 21. The water inlet of the water pump 24 is fixedly connected to the water storage tank 23 through a pipe. The front end of the water guide pipe 26 is fixedly connected to the water outlet of the water pump 24. The one-way valve 28 is fixedly installed at the front side of the water storage tank 27. The rear end of the water guide pipe 26 is fixedly connected to the one-way valve 28. The first solenoid valve 29, the pressure sensor 210, and the liquid level sensor 211 are all installed at the upper end of the water storage tank 27.

[0033] Specifically, external tap water is directly discharged into the interior of the water storage tank 23. At this time, the internal cooling module of the water chiller 21 automatically cools the liquid inside the water storage tank 23. The cooling module mainly consists of a compressor and a condenser. The compressor drives the condenser to reduce the temperature of the water inside the water storage tank 23 to the set temperature. At the same time, the air-cooled heat dissipation module 25 dissipates the heat generated by cooling.

[0034] Meanwhile, the liquid level sensor 211 monitors the liquid level inside the water storage tank 27. When the liquid level inside the water storage tank 27 is lower than the minimum value, the controller 22 automatically starts the water pump 24. The water pump 24 draws the cooled water from the water storage tank 23 into the water storage tank 27. During the water delivery process, the water level in the water storage tank 27 is increased until the water level reaches the maximum value. At this time, the water supply stops, and tap water is automatically injected into the water storage tank 23. The pressure sensor 210 detects the pressure inside the water storage tank 27. When the water level inside the water storage tank 27 is at the standard level and the pressure is lower than the normal value, the controller 22 opens the first solenoid valve 29. At this time, the high-pressure gas inside the air storage tank 12 enters the water storage tank 27 through the air inlet pipe 4 to pressurize the inside of the water storage tank 27 and maintain the stability of the water flow.

[0035] The working principle of this utility model is as follows: The water chiller 21 cools the room temperature water inside the water storage tank 23, and the water pump 24 transports the cooled water to the water storage tank 27 for storage. Then, the pressure inside the water storage tank 27 is used to transport the cooling water to the mold, which effectively maintains the stability of the cooling water temperature and improves the cooling quality of the product. At the same time, it realizes automatic water storage and effectively maintains the stability of the pressure inside the water storage tank 27, which improves the stability of the water output.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pneumatic-hydraulic cooling system for molds, comprising a pneumatic system (1) and a water cooling system (2), characterized in that: The pneumatic system (1) includes a variable frequency compressor (11), an air storage tank (12), an air guide pipe (13), and an air outlet (15). The water cooling system (2) includes a water chiller (21), a controller (22), a water storage tank (23), a water pump (24), an air-cooled heat dissipation module (25), a water guide pipe (26), a water storage tank (27), a one-way valve (28), a first solenoid valve (29), a pressure sensor (210), and a liquid level sensor (211). The outlet of the water storage tank (27) is fixedly connected to a water supply pipe (5). The air outlet (15) is fixedly connected to the upper end of the air storage tank (12). The air outlet at the left end of the air outlet (15) is fixedly connected to an air supply pipe (3). The air outlet at the right end of the air outlet (15) is fixedly connected to the first solenoid valve (29) via an air inlet pipe (4).

2. The pneumatic-hydraulic cooling system for molds according to claim 1, characterized in that: The two ends of the air guide pipe (13) are fixedly connected to the variable frequency compressor (11) and the air storage tank (12) respectively, and a pressure gauge (14) is fixedly installed on the surface of the air storage tank (12).

3. The pneumatic-hydraulic cooling system for molds according to claim 1, characterized in that: A second solenoid valve (31) is fixedly installed at the end of the gas pipeline (3) away from the gas storage tank (12).

4. The pneumatic-hydraulic cooling system for molds according to claim 1, characterized in that: A third solenoid valve (51) is fixedly installed at the end of the water pipe (5) away from the water storage tank (27).

5. The pneumatic-hydraulic cooling system for molds according to claim 1, characterized in that: The controller (22) is fixedly installed at the front end of the water chiller (21), and the air-cooled heat dissipation module (25) is fixedly installed at the top of the water chiller (21).

6. The pneumatic-hydraulic cooling system for molds according to claim 1, characterized in that: The water storage tank (23) is fixedly installed inside the water chiller (21) at the rear side, and the water pump (24) is fixedly installed inside the water chiller (21) at the front side. The water inlet of the water pump (24) is fixedly connected to the water storage tank (23) through a pipe, and the front end of the water guide pipe (26) is fixedly connected to the water outlet of the water pump (24).

7. A pneumatic-hydraulic cooling system for molds according to claim 6, characterized in that: The one-way valve (28) is fixedly installed on the front side of the water storage tank (27), and the rear end of the water guide pipe (26) is fixedly connected to the one-way valve (28).

8. The pneumatic-hydraulic cooling system for molds according to claim 1, characterized in that: The first solenoid valve (29), pressure sensor (210) and liquid level sensor (211) are all installed at the upper end of the water storage tank (27).

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