Rapid cooling device for table top injection molding machine mold

By designing a hinged metal cooling plate and hose water channel structure on the desktop injection molding machine mold, the problem of long cooling time of desktop injection molding machine mold is solved, achieving rapid cooling and improved cost-effectiveness, and is suitable for small batch production.

CN224158818UActive Publication Date: 2026-04-24SUZHOU VOCATIONAL UNIVERSITY (SUZHOU OPEN UNIVERSITY)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU VOCATIONAL UNIVERSITY (SUZHOU OPEN UNIVERSITY)
Filing Date
2025-05-28
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Desktop injection molding machine molds lack cooling water channels after injection, resulting in excessively long cooling time and affecting production efficiency. In contrast, the water channel system of standard injection molding machine molds is complex and costly, making it unsuitable for desktop injection molding machines.

Method used

Design a rapid cooling device comprising upper and lower metal cooling plates connected by a hinge. Channels and hoses are provided on the cooling plates to simplify the water circuit structure and ensure smooth opening and closing. Silicone tubing is used to connect the channels to reduce costs.

Benefits of technology

It achieves rapid cooling, simplifies processing, reduces costs, improves the efficiency of small-batch production, saves time, and is suitable for desktop injection molding machine molds.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quick cooling device for a desktop injection molding machine mold, which comprises an upper metal cooling plate, a first containing cavity is arranged on one side of the upper metal cooling plate, a material injection port is arranged on the other side of the upper metal cooling plate, a first channel assembly is arranged in the upper metal cooling plate and comprises a plurality of first channels arranged at intervals, and the first channels horizontally penetrate through the upper metal cooling plate; the first channel located at the head end communicates with a first water inlet pipe, the first channel located at the tail end communicates with a first water outlet pipe, and a first connecting hose communicates between every two adjacent first channels. A second containing cavity is formed in one side of the lower metal cooling plate, a second channel assembly is arranged in the lower metal cooling plate and comprises a plurality of second channels arranged at intervals, the second channel located at the head end communicates with a second water inlet pipe, and the second channel located at the tail end communicates with a second water outlet pipe; and a second connecting hose is communicated between the adjacent second channels. The utility model has the advantages of simple processing, smooth opening and closing, lower cost and labor-hour saving.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to a rapid cooling device for desktop injection molding machine molds. Background Technology

[0002] Injection molding is a common plastic processing technology. Injection molding machines use pressure to squeeze molten plastic into the cavity of a mold to obtain parts of a specific shape. It has the advantages of high efficiency and low cost per unit.

[0003] Desktop injection molding machines are easy to operate and widely used in multi-variety, small-batch production. Their molds typically employ aluminum quick-release molds, i.e., two-platen molds without a mold base. Combining these with small desktop injection molding machines can shorten the mold processing cycle and significantly reduce costs. However, aluminum quick-release molds lack cooling water channels after injection and rely solely on natural cooling, requiring a long time to cool down, resulting in low processing efficiency and impacting production productivity. This is one of the reasons limiting their application. Standard injection molding machines, on the other hand, have complex mold water systems, and the need for higher flow rates and pressures necessitates the use of metal piping, further increasing costs and making them unsuitable for cooling desktop injection molding machine molds. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rapid cooling device for desktop injection molding machine molds.

[0005] To achieve the above objectives, the technical solution provided by an embodiment of this utility model is as follows:

[0006] A rapid cooling device for desktop injection molding machine molds, comprising:

[0007] An upper metal cooling plate is provided, with a first receiving cavity on one side and a material injection port on the other side. The material injection port is connected to the first receiving cavity. A first channel assembly is provided inside the upper metal cooling plate. The first channel assembly includes a plurality of first channels arranged at intervals. The first channels horizontally penetrate the upper metal cooling plate. The first channel at the first end is connected to a first water inlet pipe, and the first channel at the tail end is connected to a first water outlet pipe. A first connecting hose is connected between adjacent first channels to connect the plurality of first channels.

[0008] The lower metal cooling plate is connected to the upper metal cooling plate in an openable manner. A second receiving cavity is provided on one side of the lower metal cooling plate. A second channel assembly is provided inside the lower metal cooling plate. The second channel assembly includes a plurality of second channels arranged at intervals. The second channel at the first end is connected to a second water inlet pipe, and the second channel at the tail end is connected to a second water outlet pipe. A second connecting hose is connected between adjacent second channels so that the plurality of second channels are connected.

[0009] As a further improvement of this utility model, the upper metal cooling plate and the lower metal cooling plate are hinged together.

[0010] As a further improvement of this utility model, the upper metal cooling plate is provided with a plurality of first hinge blocks at intervals, and the lower metal cooling plate is provided with a plurality of second hinge blocks at intervals, with a pin connecting each first hinge block and the corresponding second hinge block.

[0011] As a further improvement of this utility model, the upper metal cooling plate has a first upper end surface and a second upper end surface opposite to the first upper end surface, a plurality of first hinge blocks are spaced apart on the first upper end surface, and the first channel passes through the first upper end surface and the second upper end surface; the lower metal cooling plate has a first lower end surface and a second lower end surface opposite to the first lower end surface, a plurality of second hinge blocks are spaced apart on the first lower end surface, and the second channel passes through the first lower end surface and the second lower end surface.

[0012] As a further improvement of this utility model, a heat dissipation component is provided on the other side of the upper metal cooling plate.

[0013] As a further improvement of this utility model, the heat dissipation assembly includes a plurality of heat dissipation fins spaced apart, the heat dissipation fins extending in a direction away from the first receiving cavity.

[0014] As a further improvement of this utility model, the plurality of first channels and the plurality of second channels are arranged in parallel.

[0015] As a further improvement of this utility model, both the first channel and the second channel are straight channels.

[0016] As a further improvement of this utility model, both the first connecting hose and the second connecting hose are silicone tubes.

[0017] The beneficial effects of this utility model are:

[0018] This invention simplifies manufacturing by directly creating a first channel for cooling water to pass through on the upper metal cooling plate and a second channel for cooling water to pass through on the lower metal cooling plate. Adjacent first channels are connected by a first connecting hose, and adjacent second channels are connected by a second connecting hose. This eliminates concerns about interference similar to rigid pipes when the upper and lower metal cooling plates open and close, ensuring smooth operation. Furthermore, it reduces costs, shortens mold cooling time, and is suitable for improving efficiency and saving time in small-batch production. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the upper metal cooling plate according to a preferred embodiment of the present invention;

[0022] Figure 3 for Figure 2 Top view;

[0023] Figure 4 This is a schematic diagram of the structure of the lower metal cooling plate according to a preferred embodiment of the present invention;

[0024] In the diagram: 1. Upper metal cooling plate; 11. First receiving cavity; 12. Inlet; 13. First channel; 14. First water inlet pipe; 15. First water outlet pipe; 16. First connecting hose; 17. First hinge block; 181. First upper end face; 182. Second upper end face; 19. Heat dissipation assembly; 191. Heat dissipation fins; 2. Lower metal cooling plate; 21. Second receiving cavity; 22. Second channel; 23. Second water inlet pipe; 24. Second water outlet pipe; 25. Second connecting hose; 26. Second hinge block; 271. First lower end face; 272. Second lower end face; 3. Pin. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0026] Please see Figures 1-4 This application discloses a rapid cooling device for desktop injection molding machine molds, including an upper metal cooling plate 1 and a lower metal cooling plate 2. A first receiving cavity 11 is provided on one side of the upper metal cooling plate 1, and an injection port 12 is provided on the other side of the upper metal cooling plate 1. The injection port 12 is connected to the first receiving cavity 11. A first channel assembly is provided inside the upper metal cooling plate 1. The first channel assembly includes a plurality of spaced-apart first channels 13. The first channels 13 horizontally penetrate the upper metal cooling plate 1. The first channel 13 at the beginning is connected to a first water inlet pipe 14, and the first channel 13 at the end is connected to a first water outlet pipe 15. A first connecting hose 16 connects adjacent first channels 13 to enable the plurality of first channels 13 to be interconnected. The lower metal cooling plate 2 is connected to the upper metal cooling plate 1 in an openable manner. A second receiving cavity 21 is provided on one side of the lower metal cooling plate 2. A second channel assembly is provided inside the lower metal cooling plate 2. The second channel assembly includes multiple second channels 22 spaced apart. The second channel 22 at the first end is connected to a second water inlet pipe 23, and the second channel 22 at the tail end is connected to a second water outlet pipe 24. Adjacent second channels 22 are connected by a second connecting hose 25 so that the multiple second channels 22 are connected. The first receiving cavity 11 matches the upper mold of the mold, and the second receiving cavity 21 matches the lower mold of the mold. The upper and lower molds of the mold are stabilized by the upper metal cooling plate 1 and the lower metal cooling plate 2, which facilitates injection molding.

[0027] This invention simplifies manufacturing by directly creating a first channel 13 on the upper metal cooling plate 1 and a second channel 22 on the lower metal cooling plate 2 to facilitate the passage of cooling water. Adjacent first channels 13 are connected by a first connecting hose 16, and adjacent second channels 22 are connected by a second connecting hose 25. This eliminates concerns about interference similar to rigid pipes when the upper and lower metal cooling plates 1 and 2 are opened and closed, ensuring smooth operation. Furthermore, it is cost-effective and suitable for improving efficiency and saving time in small-batch production.

[0028] To facilitate the opening and closing of the upper metal cooling plate 1 and the lower metal cooling plate 2, it is preferable that the upper metal cooling plate 1 and the lower metal cooling plate 2 are hinged together.

[0029] Specifically, the upper metal cooling plate 1 is provided with a plurality of first hinge blocks 17 at intervals, and the lower metal cooling plate 2 is provided with a plurality of second hinge blocks 26 at intervals. Each first hinge block 17 is connected to the corresponding second hinge block 26 by a pin 3.

[0030] Please see Figure 2 , Figure 3 The upper metal cooling plate 1 has a first upper end surface 181 and a second upper end surface 182 opposite to the first upper end surface 181. A plurality of first hinge blocks 17 are spaced apart on the first upper end surface 181, and a first channel 13 passes through the first upper end surface 181 and the second upper end surface 182. The lower metal cooling plate 2 has a first lower end surface 271 and a second lower end surface 272 opposite to the first lower end surface 271. A plurality of second hinge blocks 26 are spaced apart on the first lower end surface 271, and a second channel 22 passes through the first lower end surface 271 and the second lower end surface 272.

[0031] Multiple first channels 13 and multiple second channels 22 are preferably arranged in parallel to improve the uniformity of water cooling heat dissipation and the overall heat dissipation effect is good.

[0032] Further optimization is made to ensure that both the first channel 13 and the second channel 22 are straight channels, which facilitates processing, improves production efficiency, and reduces costs.

[0033] To further improve heat dissipation efficiency, a heat dissipation assembly 19 is preferably provided on the other side of the upper metal cooling plate 1. In this case, multiple first channels 13 are located between the heat dissipation assembly 19 and the first receiving cavity 11. Through the arrangement of the heat dissipation assembly 19, the heat carried away by the cooling water is quickly dissipated again through the heat dissipation assembly 19, further improving the heat dissipation effect. Specifically, the heat dissipation assembly 19 includes multiple heat dissipation fins 191 arranged at intervals, and the heat dissipation fins 191 extend in a direction away from the first receiving cavity 11.

[0034] Preferably, both the first connecting hose 16 and the second connecting hose 25 are silicone tubes, which are easy to deform and have a long service life. The silicone tubes are equipped with connectors, which are inserted into the first channel 13 or the second channel 22 to achieve communication between the first channel 13 and the first connecting hose 16, and between the second channel 22 and the second connecting hose 25.

[0035] The water path of the upper metal cooling plate 1 consists of multiple first channels 13 and multiple first connecting hoses 16 on the upper metal cooling plate 1, while the water path of the lower metal cooling plate 2 consists of multiple second channels 22 and multiple second connecting hoses 25 on the lower metal cooling plate 2. Figure 4 The dashed line in the middle represents the path through which cooling water flows inside the lower metal cooling plate 2.

[0036] Before the first injection, the upper metal cooling plate 1 and the lower metal cooling plate 2 are opened. The lower mold is first fixed in the second receiving cavity 21 of the lower metal cooling plate 1. The upper mold is then placed on top of the lower mold, and the upper metal cooling plate 1 is closed. At this time, the upper mold is located in the first receiving cavity 11 of the upper metal cooling plate 1. The injection plastic is injected through the injection port 12. Simultaneously, the cooling water is activated. The cooling water flows into multiple first channels 13 through the first inlet pipe 14 and into multiple second channels 22 through the second inlet pipe 23, allowing the cooling water to flow through the upper metal cooling plate 1 and the lower metal cooling plate 2, carrying away the heat from the mold. The cooling water can be circulated and reused by flowing out through the first outlet pipe 15 and the second outlet pipe 24. After the injection is completed, the upper metal cooling plate 1 is opened, the upper mold is removed, and the injection-molded part can be taken out.

[0037] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] 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 rapid cooling device for desktop injection molding machine molds, characterized in that, include: An upper metal cooling plate is provided, with a first receiving cavity on one side and a material injection port on the other side. The material injection port is connected to the first receiving cavity. A first channel assembly is provided inside the upper metal cooling plate. The first channel assembly includes a plurality of first channels arranged at intervals. The first channels horizontally penetrate the upper metal cooling plate. The first channel at the first end is connected to a first water inlet pipe, and the first channel at the tail end is connected to a first water outlet pipe. A first connecting hose is connected between adjacent first channels to connect the plurality of first channels. The lower metal cooling plate is connected to the upper metal cooling plate in an openable manner. A second receiving cavity is provided on one side of the lower metal cooling plate. A second channel assembly is provided inside the lower metal cooling plate. The second channel assembly includes a plurality of second channels arranged at intervals. The second channel at the first end is connected to a second water inlet pipe, and the second channel at the tail end is connected to a second water outlet pipe. A second connecting hose is connected between adjacent second channels so that the plurality of second channels are connected.

2. The rapid cooling device for desktop injection molding machine molds according to claim 1, characterized in that, The upper metal cooling plate is hinged to the lower metal cooling plate.

3. A rapid cooling device for desktop injection molding machine molds according to claim 2, characterized in that, The upper metal cooling plate is provided with a plurality of first hinge blocks at intervals, and the lower metal cooling plate is provided with a plurality of second hinge blocks at intervals. Each first hinge block is connected to the corresponding second hinge block by a pin.

4. A rapid cooling device for desktop injection molding machine molds according to claim 3, characterized in that, The upper metal cooling plate has a first upper end face and a second upper end face opposite to the first upper end face. A plurality of first hinge blocks are spaced apart on the first upper end face. The first channel passes through the first upper end face and the second upper end face. The lower metal cooling plate has a first lower end face and a second lower end face opposite to the first lower end face. A plurality of second hinge blocks are spaced apart on the first lower end face. The second channel passes through the first lower end face and the second lower end face.

5. A rapid cooling device for desktop injection molding machine molds according to claim 1, characterized in that, A heat dissipation component is provided on the other side of the upper metal cooling plate.

6. A rapid cooling device for desktop injection molding machine molds according to claim 5, characterized in that, The heat dissipation assembly includes a plurality of heat dissipation fins spaced apart, the heat dissipation fins extending in a direction away from the first receiving cavity.

7. A rapid cooling device for desktop injection molding machine molds according to claim 1, characterized in that, Multiple first channels and multiple second channels are arranged in parallel.

8. A rapid cooling device for desktop injection molding machine molds according to claim 7, characterized in that, Both the first channel and the second channel are straight channels.

9. A rapid cooling device for desktop injection molding machine molds according to claim 1, characterized in that, Both the first connecting hose and the second connecting hose are silicone tubes.