Water cooling structure of injection mold

Abstract

The utility model discloses a water cooling structure of an injection mold, and particularly relates to the technical field of water cooling of injection molds, which comprises a lower mold, a circulating cooling-water machine interface is fixedly arranged on one side of the lower mold, and an injection molding cavity is arranged on the inner side of the lower mold; a water flow dispersing device capable of dispersing water flow is arranged on the inner side of the lower mold; the water flow dispersing device comprises a water inlet pipe, one end of the water inlet pipe is fixedly connected with one end of the circulating water cooler connector, and a flow divider is fixedly arranged at the other end of the water inlet pipe. A hot water extracting device is arranged on one side of the lower mold; an upper mold is movably arranged at the upper end of the lower mold, two hydraulic cylinder output columns are fixedly arranged at the upper end of the upper mold, and an injection pipe penetrates through the inner side of the upper mold. The water flow dispersing device is arranged, so that the flowing direction of cooling water can be dispersed, the lower mold can be uniformly cooled, and the hot water extracting device is arranged, so that hot water can be extracted for circulation.

Description

Technical Field

[0001] The utility model relates to the technical field of water cooling of injection molds, and more specifically, to a water cooling structure of an injection mold. Background Art

[0002] Moulds are various molds and tools used in industrial production to obtain the desired products by methods such as injection molding, blow molding, extrusion, die-casting or forging, smelting, and stamping. In short, moulds are tools used to make molded objects. This tool is composed of various parts, and different moulds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry". During the injection molding process, the high heat of the mould will be transferred to the mould itself, and a cooling mechanism is required to cool the mould, thereby accelerating the cooling of the injection moulded product.

[0003] After searching, for example, a Chinese patent application with application number CN202311029392.X discloses an injection mold with a water cooling structure, which can effectively cool the injection mold, avoid the user having to wait for a long time for the workpiece to cool down, enhance the practicality of the injection mold, and prevent the workpiece from taking a long time to cool naturally after injection. By setting an opening, the card block can be moved completely through the transmission box, preventing the opening from being too small and the card block from getting stuck.

[0004] However, the above technical solution adopts a corrugated water channel, and the water flowing through the front end of the water channel will become hot due to the heat of the mold, which will cause uneven cooling of the mold and poor cooling effect. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a water cooling structure for an injection mold. The technical problem to be solved by the present invention is to make the cooling distribution inside the mold uniform and improve the cooling efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a water cooling structure of an injection mold, comprising a lower mold:

[0007] A circulating water chiller interface is fixedly provided on one side of the lower mold, and an injection cavity is opened on the inner side of the lower mold, which is connected to the circulating water chiller through the circulating water chiller interface;

[0008] The inner side of the lower mold is provided with a water flow dispersing device capable of dispersing the water flow, so as to disperse the flow direction of the cooling water;

[0009] The water flow dispersion device comprises a water inlet pipe, one end of which is fixedly connected to one end of a circulating chiller interface, and the other end of which is fixedly provided with a flow divider, and cold water is input through the circulating chiller interface and then discharged into the water inlet pipe, and is divided by the flow divider;

[0010] A hot water extraction device is provided on one side of the lower mold for extracting hot water for recycling.

[0011] In a preferred embodiment, the output ends of the diverter are respectively provided with multiple nozzles, and an isolation plate is fixedly provided at the upper end of the diverter. The upper end of the isolation plate is fixedly connected to the upper end of the inner wall of the lower mold. Cold water is discharged through the nozzles, and the two water storage chambers are separated by the isolation plate, and cold water is sprayed on the upper end of the inner wall of the water storage chamber.

[0012] In a preferred embodiment, two water storage chambers are respectively provided on both sides of the isolation plate.

[0013] In a preferred embodiment, the hot water extraction device includes a first drain pipe and a second drain pipe, which are fixedly connected to the grooves on one side of the two water storage chambers respectively, and the hot water in the water storage chamber can be discharged through the first drain pipe and the second drain pipe.

[0014] In a preferred embodiment, the first drain pipe and the second drain pipe are connected, a pumping pipe is fixedly provided at the connection between the first drain pipe and the second drain pipe, a pumping pump is fixedly provided at one end of the pumping pipe, and the pumping pump is used to pump out the hot water in the first drain pipe and the second drain pipe.

[0015] In a preferred embodiment, a fixing platform is fixedly provided on one side of the lower end of the lower mold, and the lower end of the water pump is fixedly connected to the upper end of the fixing platform through a fixing block, so that the water pump can be firmly fixed through the fixing platform.

[0016] In a preferred embodiment, an upper mold is movably provided at the upper end of the lower mold, and two hydraulic cylinder output columns are fixedly provided at the upper end of the upper mold. An injection pipe runs through the inner side of the upper mold, and an electromagnetic valve is fixedly provided on the outer surface of the upper end of the injection pipe. The hydraulic cylinder output column presses the upper mold downward to merge it with the lower mold. When the electromagnetic valve is opened, the injection melt is injected into the injection cavity through the injection pipe to realize injection molding.

[0017] Technical effects and advantages of the utility model:

[0018] 1. The utility model is provided with a water flow dispersion device, which is conducive to dispersing the flow direction of cooling water, uniformly cooling the lower mold, and improving the cooling efficiency. The water inlet pipe is arranged on the inner side of the lower mold, so that cold water is input from the circulating chiller interface and transmitted by the water inlet pipe. When the cold water flows into the water inlet pipe, it is divided on both sides by the diverter and sprayed out through the nozzle. Because the inner side of the lower mold is separated into two water storage chambers by the isolation plate, the cold water is sprayed from the nozzle to the upper ends of the inner walls of the two water storage chambers, so that the lower mold is evenly cooled;

[0019] 2. The utility model is provided with a hot water extraction device, which is conducive to extracting hot water. The lower mold is cooled by cold water, which causes the cold water to heat up. The first drain pipe and the second drain pipe on one side of the two water storage chambers are used to extract the hot water in the water storage chamber, and the hot water is extracted through the pumping pipe and the pumping pump, thereby achieving the effect of hot water extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the side section structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the structure of the water flow dispersion device of the utility model.

[0023] Figure 4 It is a schematic structural diagram of the hot water extraction device of the utility model.

[0024] The accompanying drawings are marked as follows: 1. lower mold; 2. water flow dispersion device; 3. hot water extraction device; 4. upper mold; 5. hydraulic cylinder output column; 6. injection pipe; 7. electromagnetic valve; 8. circulating chiller interface; 9. injection cavity; 21. water inlet pipe; 22. diverter; 23. nozzle; 24. isolation plate; 25. water storage cavity; 31. first drain pipe; 32. second drain pipe; 33. water pumping pipe; 34. water pump; 35. fixing table. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field of water cooling of injection molds without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 and 2As shown, the utility model provides a water cooling structure for an injection mold, comprising a lower mold 1: a circulating water chiller interface 8 is fixedly provided on one side of the lower mold 1, and an injection cavity 9 is opened on the inner side of the lower mold 1; an upper mold 4 is movably provided on the upper end of the lower mold 1, and two hydraulic cylinder output columns 5 are fixedly provided on the upper end of the upper mold 4, an injection pipe 6 passes through the inner side of the upper mold 4, and an electromagnetic valve 7 is fixedly provided on the outer surface of the upper end of the injection pipe 6.

[0027] In order to disperse the water flow to achieve uniform cooling, a water flow dispersion device 2 capable of dispersing the water flow is provided on the inner side of the lower mold 1, which is used to disperse the flow direction of the cooling water;

[0028] like Figure 3 As shown, the water flow dispersion device 2 includes a water inlet pipe 21, one end of which is fixedly connected to one end of the circulating chiller interface 8, and the other end of the water inlet pipe 21 is fixedly provided with a diverter 22. The output ends of the diverter 22 are respectively provided with a plurality of nozzles 23. An isolation plate 24 is fixedly provided on the upper end of the diverter 22, and the upper end of the isolation plate 24 is fixedly connected to the upper end of the inner wall of the lower mold 1. Two water storage chambers 25 are respectively provided on both sides of the isolation plate 24, which are arranged on the inner side of the lower mold 1 through the water inlet pipe 21. Therefore, cold water is input from the circulating chiller interface 8 and transmitted by the water inlet pipe 21. When the cold water flows into the water inlet pipe 21, it is diverted on both sides by the diverter 22 and sprayed out through the nozzle 23. Because the inner side of the lower mold 1 is separated into two water storage chambers 25 by the isolation plate 24, the cold water is sprayed from the nozzle 23 to the upper ends of the inner walls of the two water storage chambers 25, so that the lower mold 1 is evenly cooled.

[0029] Furthermore, in order to extract the hot water, a hot water extraction device 3 is provided on one side of the lower mold 1 for extracting the hot water for recycling;

[0030] like Figure 4 As shown, the hot water extraction device 3 includes a first drain pipe 31 and a second drain pipe 32, and the first drain pipe 31 and the second drain pipe 32 are respectively fixedly connected to the grooves on one side of the two water storage chambers 25, and the first drain pipe 31 and the second drain pipe 32 are connected. A pumping pipe 33 is fixedly provided at the connection point between the first drain pipe 31 and the second drain pipe 32, and a pumping pump 34 is fixedly provided at one end of the pumping pipe 33. A fixed platform 35 is fixedly provided on one side of the lower end of the lower mold 1, and the lower end of the pumping pump 34 is fixedly connected to the upper end of the fixed platform 35 through a fixed block. The lower mold 1 is cooled by cold water, which causes the cold water to heat up. The first drain pipe 31 and the second drain pipe 32 on one side of the two water storage chambers 25 extract the hot water in the water storage chamber 25, and pump it out through the pumping pipe 33 and the pumping pump 34, thereby achieving the effect of hot water extraction.

[0031] The working principle is as follows: when the utility model is in use, the circulating water chiller interface 8 is connected to the circulating water chiller output end in the prior art, so that cold water is input into the circulating water chiller interface 8, and the cold water is transmitted by the water inlet pipe 21, and then diverted and sprayed out by the diverter 22 and the nozzle 23, so that the lower mold 1 is evenly cooled and the cooling efficiency is improved. The cold water becomes hot after cooling the lower mold 1, and is extracted by the hot water extraction device 3. The extracted hot water can be passed into the circulating water chiller for cooling, which is beneficial to the recycling of water resources. In addition, the extracted hot water can prevent its own heat from affecting the water storage chamber 25, thereby achieving the effect of maintaining continuous cooling in the water storage chamber 25.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water cooling structure for an injection mold, characterized in that: It comprises a circulating water chiller interface (8) installed on one side of a lower mold (1), and an injection molding cavity (9) is provided inside the lower mold (1); A water flow dispersing device (2) capable of dispersing water flow is provided on the inner side of the lower mold (1) to disperse the flow direction of the cooling water; The water flow dispersion device (2) comprises a water inlet pipe (21), one end of the water inlet pipe (21) is fixedly connected to one end of the circulating chiller interface (8), and the other end of the water inlet pipe (21) is fixedly provided with a flow divider (22); A hot water extraction device (3) is provided on one side of the lower mold (1) for extracting hot water for recycling.

2. The water cooling structure of an injection mold according to claim 1, characterized in that: The output ends of the flow divider (22) are respectively provided with a plurality of nozzles (23); an isolation plate (24) is fixedly provided at the upper end of the flow divider (22); and the upper end of the isolation plate (24) is fixedly connected to the upper end of the inner wall of the lower mold (1).

3. The water cooling structure of an injection mold according to claim 2, characterized in that: Two water storage chambers (25) are respectively provided on both sides of the isolation plate (24).

4. The water cooling structure of an injection mold according to claim 1, characterized in that: The hot water extraction device (3) comprises a first drainage pipe (31) and a second drainage pipe (32), wherein the first drainage pipe (31) and the second drainage pipe (32) are respectively fixedly connected to grooves on one side of two water storage chambers (25).

5. The water cooling structure of the injection mold according to claim 4, characterized in that: The first drainage pipe (31) and the second drainage pipe (32) are connected, a water pumping pipe (33) is fixedly provided at the connection point between the first drainage pipe (31) and the second drainage pipe (32), and a water pumping pump (34) is fixedly provided at one end of the water pumping pipe (33).

6. The water cooling structure of an injection mold according to claim 5, characterized in that: A fixing platform (35) is fixedly provided on one side of the lower end of the lower mold (1), and the lower end of the water pump (34) is fixedly connected to the upper end of the fixing platform (35) via a fixing block.

7. The water cooling structure of an injection mold according to claim 1, characterized in that: An upper mold (4) is movably provided at the upper end of the lower mold (1), two hydraulic cylinder output columns (5) are fixedly provided at the upper end of the upper mold (4), an injection pipe (6) passes through the inner side of the upper mold (4), and an electromagnetic valve (7) is fixedly provided on the outer surface of the upper end of the injection pipe (6).

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