Automobile plastic part injection molding cooling mechanism

Abstract

The utility model discloses an injection molding cooling mechanism for an automobile plastic part, which relates to the technical field of injection molding cooling and comprises a base, a lower mold is mounted on the upper surface of the base, an upper mold is arranged above the lower mold, and a molding cavity for molding the automobile plastic part is arranged in the lower mold and the upper mold. A plurality of cooling flow channels are sequentially formed in the lower die and the upper die, cooling media in the cooling box can be conveyed into the cooling flow channels in the lower die and the upper die through the arranged cooling mechanism, so that automobile plastic parts are internally cooled, the cooling effect can be improved, and the automobile plastic parts can be recycled through the arranged recycling mechanism. According to the injection molding machine, the heated medium can be used for heating and heat preservation of injection molding materials in the injection molding pipe, cooling is avoided, meanwhile, the lower mold and the upper mold can be heated during next injection molding, the fluidity of the injection molding materials can be improved in a disguised mode, and therefore the injection molding effect is improved, and the energy recycling effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding cooling technology, specifically to an injection molding cooling mechanism for automotive plastic parts. Background Technology

[0002] Automotive plastic parts reach high temperatures after injection molding, making direct packaging and bagging impossible. Cooling is necessary, typically achieved through natural air cooling or by using fans to accelerate cooling. A search reveals Chinese Patent Publication No. CN222407010U, which discloses an injection molding cooling mechanism for automotive plastic parts. This mechanism includes: an injection molding box; an exchanger and a circulation pump installed at the bottom of the injection molding box; a cylinder installed at the top of the injection molding box; a telescopic frame slidably connected to the bottom of the cylinder; an upper injection mold fixedly connected to the bottom of the telescopic frame; four connecting plates fixedly connected inside the injection molding box; air pressure columns fixedly connected to the connecting plates; push plates fixedly connected to the air pressure columns; and several first cross rods fixedly connected to the push plates, with first cooling elements fixedly connected to the first cross rods.

[0003] While the above technical solutions can be adapted to injection molds of different sizes, saving a lot of time and labor costs, the cooling structure cools the inside of the mold from the outside during use. The cooling speed and effect are not ideal, and the absorbed heat cannot be utilized, resulting in energy waste. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an injection molding cooling mechanism for automotive plastic parts, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling mechanism for injection molding of automotive plastic parts, comprising a base, a lower mold mounted on the upper surface of the base, an upper mold above the lower mold, molding cavities for molding automotive plastic parts being formed inside the lower and upper molds, and multiple cooling channels sequentially formed inside both the lower and upper molds, a cooling mechanism cooperating with the cooling channels being mounted on one side of the upper surface of the base, and a recycling mechanism cooperating with the cooling channels being mounted on the other side of the upper surface of the base, an injection hole being formed at the top of the upper mold, and an injection tube communicating with the injection hole being fixedly connected to the top of the upper mold.

[0006] Preferably, the cooling mechanism includes a cooling box fixedly connected to the base, a first delivery pump fixedly installed on one side of the cooling box, two first branch hoses fixedly connected to the output end of the first delivery pump, a first central frame fixedly connected to one end of the first branch hose, and one side of the first central frame fixedly communicating with one end of the corresponding cooling channel, so as to facilitate the delivery of cooling medium in the cooling channel, thereby cooling the automotive plastic parts.

[0007] Preferably, the two first branch hoses are fixedly connected to the cooling box via the same first return water pipe. The first delivery pump and the first return water pipe are both fixedly installed with a first solenoid valve. A semiconductor cooler is embedded and fixedly installed at the bottom of the cooling box to facilitate control of the medium flow direction.

[0008] Preferably, the recycling mechanism includes an insulated box fixedly connected to the base. A second delivery pump is fixedly installed on one side of the insulated box. Two second branch hoses are fixedly connected to the output end of the second delivery pump. A second central frame is fixedly connected to one end of each branch hose. One side of the second central frame is fixedly connected to the other end of the corresponding cooling channel. The heated medium can be re-delivered to the cooling channel to preheat the mold, thereby improving the injection molding effect.

[0009] Preferably, a second solenoid valve is fixedly connected to the output end of the second delivery pump to facilitate control of the medium flow direction.

[0010] Preferably, an insulation frame is fixedly fitted on the outer surface of the injection tube, and a heat exchange tube is fixedly connected inside the insulation frame. One end of the heat exchange tube is fixedly connected to the second branch hose, and the other end of the heat exchange tube is fixedly connected to the insulation box, and a second return water pipe is fixedly connected to it. The injection material in the injection tube can be heated and kept warm by means of the heated medium.

[0011] This utility model provides a cooling mechanism for injection molding of automotive plastic parts. It has the following beneficial effects:

[0012] 1. The automotive plastic part injection molding cooling mechanism, through the set cooling mechanism, the first delivery pump can transport the cooling medium in the cooling box to the cooling channels in the lower mold and the upper mold, thereby cooling the automotive plastic part internally, which can reduce the transmission distance and thus improve the cooling effect.

[0013] 2. This automotive plastic parts injection molding cooling mechanism, through the set recycling mechanism, can not only use the heated medium to heat and keep the injection material in the injection tube warm, avoiding cooling, but also heat the lower mold and upper mold respectively during the next injection, which can indirectly improve the fluidity of the injection material, thereby improving the injection effect and achieving the effect of energy recovery and utilization. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the cooling mechanism of this utility model;

[0017] Figure 4 This is a partial structural diagram of the recycling mechanism of this utility model.

[0018] In the diagram, 1. Base; 2. Lower mold; 3. Upper mold; 4. Cooling channel; 5. Injection pipe; 6. Cooling box; 7. First delivery pump; 8. First branch hose; 9. First central frame; 10. First return water pipe; 11. Semiconductor cooler; 12. Insulation box; 13. Second delivery pump; 14. Second branch hose; 15. Second central frame; 16. Insulation frame; 17. Heat exchanger tube; 18. Connecting pipe; 19. Second return water pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] like Figures 1 to 4 As shown, an injection molding cooling mechanism for automotive plastic parts includes a base 1, a lower mold 2 mounted on the upper surface of the base 1, an upper mold 3 above the lower mold 2, molding cavities for molding automotive plastic parts being formed inside the lower mold 2 and the upper mold 3, and multiple cooling channels 4 sequentially formed inside the lower mold 2 and the upper mold 3. A cooling mechanism cooperating with the cooling channels 4 is mounted on one side of the upper surface of the base 1, and a recycling mechanism cooperating with the cooling channels 4 is mounted on the other side of the upper surface of the base 1. An injection hole is formed on the top of the upper mold 3, and an injection tube 5 communicating with the injection hole is fixedly connected to the top of the upper mold 3.

[0021] The cooling mechanism includes a cooling box 6 fixedly connected to a base 1. A first delivery pump 7 is fixedly installed on one side of the cooling box 6. Two first branch hoses 8 are fixedly connected to the output end of the first delivery pump 7. One end of each first branch hose 8 is fixedly connected to a first central frame 9, and one side of the first central frame 9 is fixedly connected to one end of a corresponding cooling channel 4. The two first branch hoses 8 and the cooling box 6 are fixedly connected to the same first return water pipe 10. A first solenoid valve is fixedly installed inside both the first delivery pump 7 and the first return water pipe 10. A semiconductor cooler 11 is embedded and fixedly installed at the bottom of the cooling box 6.

[0022] Through the above technical solution, the operation of the first delivery pump 7 can deliver the cooling medium in the cooling box 6 to the cooling channels 4 in the lower mold 2 and the upper mold 3, thereby cooling the automotive plastic parts internally, reducing the transmission distance and improving the cooling effect.

[0023] The recycling mechanism includes an insulated box 12 fixedly connected to a base 1. A second delivery pump 13 is fixedly installed on one side of the insulated box 12. Two second branch hoses 14 are fixedly connected to the output end of the second delivery pump 13. A second central frame 15 is fixedly connected to one end of each branch hose 14. One side of the second central frame 15 is fixedly connected to the other end of the corresponding cooling channel 4. A second solenoid valve is fixedly connected to the output end of the second delivery pump 13. An insulated frame 16 is fixedly fitted onto the outer surface of the injection molding tube 5. A heat exchange tube 17 is fixedly connected inside the insulated frame 16. A connecting pipe 18 is fixedly connected between one end of the heat exchange tube 17 and the second branch hose 14, and a second return water pipe 19 is fixedly connected between the other end of the heat exchange tube 17 and the insulated box 12.

[0024] Through the above technical solution, the heated medium will sequentially pass through the connecting pipe 18, the heat exchange pipe 17, and the second return water pipe 19 before entering the heat preservation box 12. The heat exchange pipe 17 can heat and keep the injection material in the injection pipe 5 warm, preventing it from cooling down. At the same time, when the next injection is performed, the second delivery pump 13 can transport the hot medium in the heat preservation box 12 to the cooling channel 4, which can heat the lower mold 2 and the upper mold 3 respectively. This can indirectly improve the fluidity of the injection material, thereby improving the injection effect and achieving the effect of energy recovery and utilization.

[0025] Working principle: The operation of the first delivery pump 7 can deliver the cooling medium in the cooling box 6 to the cooling channels 4 in the lower mold 2 and the upper mold 3, thereby cooling the automotive plastic parts internally. This can reduce the transmission distance and thus improve the cooling effect.

[0026] The heated medium passes through the connecting pipe 18, the heat exchange pipe 17, and the second return water pipe 19 in sequence before entering the insulation box 12. The heat exchange pipe 17 heats and keeps the injection material in the injection tube 5 warm, preventing it from cooling down. At the same time, when the next injection is performed, the second delivery pump 13 runs to transport the hot medium in the insulation box 12 to the cooling channel 4, which can heat the lower mold 2 and the upper mold 3 respectively. This can indirectly improve the fluidity of the injection material, thereby improving the injection effect and achieving the effect of energy recovery and utilization.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cooling mechanism for injection molding of automotive plastic parts, comprising a base (1), characterized in that: The upper surface of the base (1) is equipped with a lower mold (2), and an upper mold (3) is provided above the lower mold (2). The lower mold (2) and the upper mold (3) are provided with molding cavities for molding automotive plastic parts. The lower mold (2) and the upper mold (3) are provided with multiple cooling channels (4) in sequence. A cooling mechanism that cooperates with the cooling channels (4) is installed on one side of the upper surface of the base (1). A recycling mechanism that cooperates with the cooling channels (4) is installed on the other side of the upper surface of the base (1). An injection hole is provided on the top of the upper mold (3). An injection tube (5) that communicates with the injection hole is fixedly connected to the top of the upper mold (3).

2. The automotive plastic part injection molding cooling mechanism according to claim 1, characterized in that: The cooling mechanism includes a cooling box (6) fixedly connected to the base (1). A first delivery pump (7) is fixedly installed on one side of the cooling box (6). Two first branch hoses (8) are fixedly connected to the output end of the first delivery pump (7). A first central frame (9) is fixedly connected to one end of the first branch hose (8), and one side of the first central frame (9) is fixedly connected to one end of the corresponding cooling channel (4).

3. The automotive plastic part injection molding cooling mechanism according to claim 2, characterized in that: The two first branch hoses (8) are fixedly connected to the cooling box (6) by the same first return water pipe (10). The first delivery pump (7) and the first return water pipe (10) are both fixedly installed with a first solenoid valve. The bottom of the cooling box (6) is embedded with a semiconductor cooler (11).

4. The automotive plastic part injection molding cooling mechanism according to claim 1, characterized in that: The recycling mechanism includes an insulated box (12) fixedly connected to the base (1). A second delivery pump (13) is fixedly installed on one side of the insulated box (12). Two second branch hoses (14) are fixedly connected to the output end of the second delivery pump (13). A second central frame (15) is fixedly connected to one end of the second branch hose (14). One side of the second central frame (15) is fixedly connected to the other end of the corresponding cooling channel (4).

5. The automotive plastic part injection molding cooling mechanism according to claim 4, characterized in that: The output end of the second delivery pump (13) is fixedly connected to a second solenoid valve.

6. The automotive plastic part injection molding cooling mechanism according to claim 1, characterized in that: The outer surface of the injection molding tube (5) is fixedly fitted with an insulation frame (16), and the inside of the insulation frame (16) is fixedly connected with a heat exchange tube (17). One end of the heat exchange tube (17) is fixedly connected to the second branch hose (14) by a connecting pipe (18), and the other end of the heat exchange tube (17) is fixedly connected to the insulation box (12) by a second return water pipe (19).

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