Multi-cavity runner balance injection mold

Abstract

The utility model provides a multi-cavity runner balance injection mold, and relates to the technical field of injection molds. A cooling pipe is arranged in the multi-cavity injection mold, radiators are installed on the two sides of the multi-cavity injection mold, and bolts are connected to the four ends of the radiators and connected with the multi-cavity injection mold; one end of the cooling pipe is connected with a liquid inlet pipe, and a circulating pump is mounted on a pipeline of the liquid inlet pipe; the other end of the cooling pipe is connected with a liquid return pipe, and the end of the liquid return pipe is connected with a cooling pipe. Heat exchange liquid circulating in the cooling pipe is cooled through water, so that the heat exchange liquid is kept in a low-temperature state, the circulating pump conveys the low-temperature heat exchange liquid in the cooling pipe into the cooling pipe through the liquid inlet pipe, the effect of cooling the multi-cavity injection mold is achieved, the heated heat exchange liquid in the cooling pipe flows back into the cooling pipe through the liquid return pipe, the heat exchange liquid circulates in a circulating mode, and the cooling effect of the multi-cavity injection mold is improved. The multi-cavity injection mold is kept in a low-temperature state, the time required for cooling and curing injection molding parts is shortened, and the production efficiency of the injection molding parts is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a multi-cavity flow channel balanced injection mold. Background Art

[0002] Injection molding is a method of plastic forming processing, which is to place granular plastic in a barrel, heat it to make it melt and plasticize, and then use a plunger or screw to apply pressure to inject the flowing material from the nozzle at the end of the barrel into the mold of the desired shape to fill the mold cavity. After cooling and shaping, it is demolded to obtain a plastic part with a certain shape.

[0003] The existing multi-cavity runner balanced injection mold has poor heat dissipation effect during use. The heat contained in the injection mold is difficult to release to the outside in a short time, which can easily cause the temperature of the injection mold itself to be too high. The injection molded parts need to spend a long time to cool and shape, and the production efficiency is low. Utility Model Content

[0004] The present disclosure relates to a multi-cavity runner balanced injection mold, which solves the problem that the existing multi-cavity runner balanced injection mold has poor heat dissipation effect during use, the heat contained in the injection mold is difficult to release to the outside in a short time, which easily leads to the injection mold itself The temperature is too high, the injection molded parts need to spend a long time to cool and shape, and the production efficiency is low.

[0005] According to a first aspect of the present disclosure, a multi-cavity flow channel balanced injection mold is provided, specifically comprising: a multi-cavity injection mold; a cooling tube is contained inside the multi-cavity injection mold, radiators are installed on both sides of the multi-cavity injection mold, and bolts are connected to the multi-cavity injection mold at four ends of the radiator; a liquid inlet pipe is connected to one end of the cooling tube, and a circulating pump is installed on the liquid inlet pipe; a liquid return pipe is connected to the other end of the cooling tube, and a cooling pipe is connected to the liquid inlet pipe at the end of the liquid return pipe; a guide tube is mounted on the outside of the cooling tube, the guide tube is immersed below the water surface, and a waterproof motor is installed inside the guide tube.

[0006] Furthermore, a cooling channel is provided inside the multi-cavity injection mold, the cooling channel is curved, the cooling pipe is located in the cooling channel, and the cooling pipe and the multi-cavity injection mold are integrated.

[0007] Furthermore, a water inlet is provided at one end of the guide tube, and a water outlet is provided at the other end of the guide tube.

[0008] Furthermore, the cooling pipe is curved, and a heat conducting plate is provided on the outside of the cooling pipe. The cooling pipe is close to the water inlet provided on the guide tube. The heat exchange liquid flowing in the cooling pipe is cooled by water. The circulating pump transports the low-temperature heat exchange liquid in the cooling pipe through the liquid inlet pipe to the cooling pipe, thereby cooling the multi-cavity injection mold. The heated heat exchange liquid in the cooling pipe flows back to the cooling pipe through the return pipe. The heat exchange liquid circulates to maintain the multi-cavity injection mold at a low temperature.

[0009] Furthermore, a propeller is installed on the driving shaft of the waterproof motor, and the propeller is close to the drainage outlet provided on the guide tube.

[0010] Furthermore, the liquid inlet end of the cooling pipe is connected to the liquid discharge end of the cooling pipe through the liquid inlet pipe, and the liquid discharge end of the cooling pipe is connected to the liquid inlet end of the cooling pipe through the liquid return pipe. The propeller is driven to rotate by the waterproof motor, and the propeller promotes the rapid circulation of water inside the guide tube, so that the heated water can quickly pass through the inside of the guide tube.

[0011] Furthermore, the contact portion between the radiator and the multi-cavity injection mold is coated with thermal grease, a heat sink is provided on the outside of the radiator, a bolt passes through the radiator, a spring is mounted on the outside of the bolt, one end of the spring is in contact with the end of the bolt, and the other end of the spring is in contact with the radiator, and a thrust is applied to the radiator through the spring to make the radiator in close contact with the multi-cavity injection mold, and the heat contained in the multi-cavity injection mold is conducted to the radiator, and the heat is released into the air through the radiator.

[0012] The utility model provides a multi-cavity flow channel balanced injection mold, which has the following beneficial effects:

[0013] When the utility model is in use, the heat exchange liquid circulating in the cooling pipe is cooled by water, so that the heat exchange liquid is kept at a low temperature state. The circulating pump transports the low-temperature heat exchange liquid in the cooling pipe to the cooling pipe through the liquid inlet pipe, so as to cool the multi-cavity injection mold. The heated heat exchange liquid in the cooling pipe flows back to the cooling pipe through the liquid return pipe. The heat exchange liquid circulates to keep the multi-cavity injection mold at a low temperature, shortening the time required for cooling and curing of injection molded parts and improving the production efficiency of injection molded parts. The propeller is driven to rotate by the waterproof motor, and the propeller promotes the rapid circulation of water inside the guide tube, so that the heated water can quickly pass through the inside of the guide tube, thereby ensuring the cooling effect of water on the heat exchange liquid in the cooling pipe, and further ensuring the cooling effect of the multi-cavity injection mold.

[0014] In addition, a spring is used to apply thrust to the heat sink, so that the heat sink is in close contact with the multi-cavity injection mold, thereby ensuring the heat conduction effect between the heat sink and the multi-cavity injection mold. The heat contained in the multi-cavity injection mold is conducted to the heat sink, and the heat is released into the air through the heat sink, thereby playing an auxiliary cooling effect on the multi-cavity injection mold.

[0015] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 The overall axial side structure schematic diagram of the present application is shown;

[0020] Figure 2 A schematic diagram of the structure of the multi-cavity injection mold, cooling tube and radiator of the present application is shown;

[0021] Figure 3 A schematic diagram of the internal cross-sectional structure of the guide tube of the present application is shown.

[0022] Reference numerals list

[0023] 1. Multi-cavity injection mold; 101. Cooling channel; 2. Cooling pipe; 3. Radiator; 301. Heat sink; 4. Bolt; 5. Spring; 6. Guide tube; 601. Water inlet; 602. Drain; 7. Cooling pipe; 701. Heat conducting sheet; 8. Waterproof motor; 801. Propeller; 9. Liquid inlet pipe; 10. Circulation pump; 11. Liquid return pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figures 1 to 3 :

[0026] The utility model proposes a multi-cavity flow channel balanced injection mold, comprising: a multi-cavity injection mold 1; a cooling tube 2 is contained inside the multi-cavity injection mold 1, radiators 3 are installed on both sides of the multi-cavity injection mold 1, and bolts 4 are connected to the four ends of the radiator 3, and the bolts 4 are connected to the multi-cavity injection mold 1; one end of the cooling tube 2 is connected to a liquid inlet pipe 9, and a circulating pump 10 is installed on the liquid inlet pipe 9; the other end of the cooling tube 2 is connected to a liquid return pipe 11, and the end of the liquid return pipe 11 is connected to a cooling tube 7, and the cooling tube 7 is connected to the liquid inlet pipe 9; the cooling tube 7 is sleeved with a guide tube 6 on the outside, and the guide tube 6 is immersed below the water surface, and a waterproof motor 8 is installed inside the guide tube 6; a cooling channel 101 is provided inside the multi-cavity injection mold 1, and the cooling channel 101 is curved, and the cooling tube 2 is located in the cooling channel 1 01, the cooling tube 2 and the multi-cavity injection mold 1 are integrated; a water inlet 601 is provided at one end of the guide tube 6, and a drain outlet 602 is provided at the other end of the guide tube 6; the cooling tube 7 is curved, and a heat conductive plate 701 is provided on the outside of the cooling tube 7, and the cooling tube 7 is close to the water inlet 601 provided on the guide tube 6. The heat exchange liquid flowing in the cooling tube 7 is cooled by water to keep the heat exchange liquid in a low temperature state. The circulating pump 10 transports the low-temperature heat exchange liquid in the cooling tube 7 through the liquid inlet pipe 9 to the cooling tube 2, which has a cooling effect on the multi-cavity injection mold 1. The heated heat exchange liquid in the cooling tube 2 flows back to the cooling tube 7 through the return pipe 11. The heat exchange liquid circulates to keep the multi-cavity injection mold 1 in a low temperature state, shortening the time required for cooling and solidification of the injection molded parts, and improving the production efficiency of the injection molded parts.

[0027] In the disclosed embodiment, a propeller 801 is installed on the driving shaft of the waterproof motor 8, and the propeller 801 is close to the drain port 602 provided on the guide tube 6. The liquid inlet end of the cooling tube 2 is connected with the liquid discharge end of the cooling tube 7 through the liquid inlet pipe 9, and the liquid discharge end of the cooling tube 2 is connected with the liquid inlet end of the cooling tube 7 through the liquid return pipe 11. By adopting the above technical scheme, the propeller 801 is driven to rotate by the waterproof motor 8, and the propeller 801 promotes the rapid circulation of water inside the guide tube 6, so that the heated water can quickly pass through the inside of the guide tube 6, thereby ensuring the cooling effect of water on the heat exchange liquid inside the cooling tube 7, and then ensuring the cooling effect of the multi-cavity injection mold 1.

[0028] Embodiment 2, on the basis of embodiment 1, the contact part between the radiator 3 and the multi-cavity injection mold 1 is coated with thermal conductive silicone grease, a heat sink 301 is provided on the outside of the radiator 3, a bolt 4 passes through the radiator 3, a spring 5 is mounted on the outside of the bolt 4, one end of the spring 5 is in contact with the end of the bolt 4, and the other end of the spring 5 is in contact with the radiator 3; adopting the above technical scheme, a thrust is applied to the radiator 3 through the spring 5, so that the radiator 3 and the multi-cavity injection mold 1 are in close contact, thereby ensuring the heat conduction effect between the radiator 3 and the multi-cavity injection mold 1, and the heat contained in the multi-cavity injection mold 1 is conducted to the radiator 3, and the heat is released into the air through the radiator 3, thereby playing an auxiliary cooling effect on the multi-cavity injection mold 1.

[0029] The working principle of this embodiment is as follows: the heat exchange liquid circulating in the cooling tube 7 is cooled by water to keep the heat exchange liquid at a low temperature; the circulating pump 10 transports the low-temperature heat exchange liquid in the cooling tube 7 to the cooling tube 2 through the liquid inlet pipe 9, so as to cool the multi-cavity injection mold 1; the heated heat exchange liquid in the cooling tube 2 flows back to the cooling tube 7 through the liquid return pipe 11; the heat exchange liquid circulates to keep the multi-cavity injection mold 1 at a low temperature, thereby shortening the time required for the injection molded parts to cool and solidify; the waterproof motor 8 drives the propeller 801 to rotate, and the propeller 801 promotes the rapid circulation of water inside the guide tube 6, so that the heated water can quickly pass through the inside of the guide tube 6; the spring 5 applies thrust to the radiator 3, so that the radiator 3 is in close contact with the multi-cavity injection mold 1, and the heat contained in the multi-cavity injection mold 1 is conducted to the radiator 3, and the heat is released into the air through the radiator 3.

[0030] In this article, there are a few points to note:

[0031] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0032] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0033] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A multi-cavity flow channel balanced injection mold, characterized in that: include: A multi-cavity injection mold (1); the multi-cavity injection mold (1) contains a cooling tube (2) inside, radiators (3) are installed on both sides of the multi-cavity injection mold (1), the four ends of the radiator (3) are connected with bolts (4), and the bolts (4) are connected to the multi-cavity injection mold (1); one end of the cooling tube (2) is connected with a liquid inlet pipe (9), and a circulating pump (10) is installed on the liquid inlet pipe (9); the other end of the cooling tube (2) is connected with a liquid return pipe (11), the end of the liquid return pipe (11) is connected with a cooling tube (7), and the cooling tube (7) is connected to the liquid inlet pipe (9); the cooling tube (7) is sheathed with a guide tube (6) outside, the guide tube (6) is immersed below the water surface, and a waterproof motor (8) is installed inside the guide tube (6).

2. A multi-cavity flow channel balanced injection mold according to claim 1, characterized in that: The multi-cavity injection mould (1) is provided with a cooling channel (101) inside, the cooling channel (101) is curved, the cooling pipe (2) is located inside the cooling channel (101), and the cooling pipe (2) and the multi-cavity injection mould (1) are integrated.

3. The multi-cavity flow channel balanced injection mold according to claim 1, characterized in that: A water inlet (601) is provided at one end of the guide tube (6), and a water outlet (602) is provided at the other end of the guide tube (6).

4. The multi-cavity flow channel balanced injection mold according to claim 3, characterized in that: The cooling pipe (7) is in a curved shape, a heat conducting sheet (701) is provided on the outside of the cooling pipe (7), and the cooling pipe (7) is close to a water inlet (601) provided on the guide tube (6).

5. The multi-cavity flow channel balanced injection mold according to claim 3, characterized in that: A propeller (801) is installed on the driving shaft of the waterproof motor (8), and the propeller (801) is close to the drainage outlet (602) provided on the guide tube (6).

6. The multi-cavity flow channel balanced injection mold according to claim 1, characterized in that: The liquid inlet end of the cooling tube (2) is connected to the liquid discharge end of the cooling tube (7) via the liquid inlet tube (9), and the liquid discharge end of the cooling tube (2) is connected to the liquid inlet end of the cooling tube (7) via the liquid return tube (11).

7. The multi-cavity flow channel balanced injection mold according to claim 1, characterized in that: The contact portion between the heat sink (3) and the multi-cavity injection mold (1) is coated with thermal conductive silicone grease, a heat sink (301) is provided on the outside of the heat sink (3), a bolt (4) passes through the heat sink (3), a spring (5) is sleeved on the outside of the bolt (4), one end of the spring (5) contacts the end of the bolt (4), and the other end of the spring (5) contacts the heat sink (3).

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