A rapid cooling water channel of an injection mold

Abstract

The utility model discloses a kind of quick cooling water routes of injection mould, it is related to plastic bucket injection moulding technical field, including lower mould and first cooling water route, the top of lower mould is placed with upper mould, the inside of upper mould is provided with first cooling water route, and first cooling water route includes first water inlet pipe, first shunt pipe, first heat exchange pipe, first manifold, first water outlet pipe and first cooling pipe.The quick cooling water route of the injection mould is set through first cooling water route, when the pump body of outside transports cooling liquid into first water inlet pipe, it can flow into multiple first heat exchange pipes under the shunting of first shunt pipe, since the overall length of first heat exchange pipe is shorter compared with existing single spiral cooling channel, thus it can avoid the problem that the temperature difference of cooling flow passage head and tail is larger and affects overall cooling effect, and first cooling pipe can also be used to cool down the top, further improve the overall cooling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic bucket injection molding technology, specifically to a rapid cooling water channel for an injection mold. Background Technology

[0002] Plastic buckets are containers made of plastic materials and are widely used in the storage, transportation and handling of liquids or solids. Their design usually includes handles or sealing structures to meet the needs of different scenarios. In the production process of plastic buckets, injection molds are used for injection molding, and cooling water circuits are used to quickly cool and solidify the plastic bucket blanks.

[0003] For example, utility model publication CN218660331U discloses an auxiliary cooling mechanism for plastic bucket injection molding. This utility model activates a water pump, which draws coolant from a cooling tank into cooling channels A and B, thereby achieving circulating cooling of the upper and lower molds to accelerate the cooling effect on the plastic bucket. However, because both cooling channels A and B are spiral-shaped and relatively long, the water temperature gradually increases as the coolant flows from one end to the other. This results in uneven heating at both ends of the plastic bucket during cooling, affecting the overall cooling effect. Utility Model Content

[0004] The purpose of this invention is to provide a rapid cooling water channel for injection molds to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling water channel for an injection mold, comprising a lower mold and a first cooling water channel, wherein an upper mold is disposed on the top of the lower mold, the first cooling water channel is disposed inside the upper mold, and the first cooling water channel comprises a first inlet pipe, a first branch pipe, a first heat exchange pipe, a first manifold pipe, a first outlet pipe and a first cooling pipe, wherein a first branch pipe is connected to one side of the first inlet pipe, and a first heat exchange pipe is disposed at one end of the first branch pipe, a first manifold pipe is fixed to the end of the first heat exchange pipe, and a first outlet pipe is connected to the end of the first manifold pipe, and a first cooling pipe is disposed on the top of the first inlet pipe.

[0006] Furthermore, the first heat exchange tube is spiral-shaped, and the first heat exchange tubes are equidistantly distributed about the interior of the lower mold.

[0007] Furthermore, the first cooling pipe is vortex-shaped and is connected to the first water outlet pipe.

[0008] Furthermore, the upper mold is provided with a second cooling water channel, which includes a second inlet pipe and a second branch pipe. The upper mold is provided with a second inlet pipe at one end, and a second branch pipe is connected to one side of the second inlet pipe.

[0009] Furthermore, the second cooling water circuit also includes a second heat exchange pipe and a second manifold, with one end of the second manifold fixed to the second heat exchange pipe and the end of the second heat exchange pipe connected to the second manifold.

[0010] Furthermore, the number of the second heat exchange tubes is three, and the second heat exchange tubes are spiral-shaped.

[0011] Furthermore, the second cooling water circuit also includes a second water outlet pipe and a second cooling pipe. The end of the second manifold is provided with a second water outlet pipe, and the upper end of the second water outlet pipe is connected to a second cooling pipe.

[0012] Furthermore, the second cooling pipe is connected to the second water inlet pipe, and the second cooling pipe is in a spiral shape.

[0013] This invention provides a rapid cooling water channel for injection molds, which has the following beneficial effects:

[0014] 1. By setting up a first cooling water channel, when the external pump delivers coolant to the first inlet pipe, it can flow into multiple first heat exchange tubes through the first branch pipe. Since the overall length of the first heat exchange tube is shorter than that of the existing single spiral cooling channel, the problem of large temperature difference between the head and tail of the cooling channel affecting the overall cooling effect can be avoided. At the same time, the first cooling tube can be used to cool the top, further improving the overall cooling efficiency.

[0015] 2. By setting up a second cooling water channel, when the coolant is delivered to the second inlet pipe, it can enter the second heat exchange pipe through the second branch pipe to cool the upper mold. At the same time, the cooling water in the first heat exchange pipe flows from top to bottom, while the cooling water in the second heat exchange pipe flows from bottom to top. The opposite flow direction ensures the overall cooling speed, thereby achieving a rapid cooling effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the upper mold cross-sectional structure of a rapid cooling water channel for an injection mold according to the present invention;

[0017] Figure 2 This is a schematic diagram of the lower mold cross-sectional structure of a rapid cooling water channel for an injection mold according to the present invention;

[0018] Figure 3This is a schematic diagram of the first cooling water channel structure of a rapid cooling water channel for an injection mold according to the present invention.

[0019] In the diagram: 1. Lower mold; 2. Upper mold; 3. First cooling water channel; 301. First inlet pipe; 302. First branch pipe; 303. First heat exchange pipe; 304. First manifold pipe; 305. First outlet pipe; 306. First cooling pipe; 4. Second cooling water channel; 401. Second inlet pipe; 402. Second branch pipe; 403. Second heat exchange pipe; 404. Second manifold pipe; 405. Second outlet pipe; 406. Second cooling pipe. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1 to 3 As shown, a rapid cooling water channel for an injection mold includes a lower mold 1 and a first cooling water channel 3. An upper mold 2 is mounted on top of the lower mold 1. The first cooling water channel 3 is located inside the upper mold 2 and includes a first inlet pipe 301, a first branch pipe 302, a first heat exchange pipe 303, a first manifold pipe 304, a first outlet pipe 305, and a first cooling pipe 306. One side of the first inlet pipe 301 is connected to the first branch pipe 302, and one end of the first branch pipe 302 is fitted with a first heat exchange pipe 303. The coolant in the first inlet pipe 301 flows down the branch pipe 302 into multiple first heat exchange pipes 303. The first heat exchange pipes 303 are spiral-shaped. 03 Regarding the internal distribution of the lower mold 1, since the overall length of the first heat exchange tube 303 is shorter than that of the existing single spiral cooling channel, the problem of large temperature difference between the head and tail of the cooling channel affecting the overall cooling effect can be avoided. The end of the first heat exchange tube 303 is fixed with a first manifold 304, and the end of the first manifold 304 is connected to a first water outlet 305. Coolant is discharged through the first water outlet 305. The top of the first water inlet 301 is provided with a first cooling tube 306. The first cooling tube 306 is vortex-shaped and connected to the first water outlet 305. The first cooling tube 306 is used to cool the top of the lower mold 1, further improving the overall cooling efficiency.

[0022] like Figure 1As shown, the upper mold 2 has a second cooling water passage 4 inside, which includes a second inlet pipe 401 and a second branch pipe 402. The second inlet pipe 401 is located inside one end of the upper mold 2, and the second branch pipe 402 is connected to one side of the second inlet pipe 401. The second cooling water passage 4 also includes a second heat exchange pipe 403 and a second manifold 404. The second heat exchange pipe 403 is fixed to one end of the second branch pipe 402, and the second manifold 404 is connected to the end of the second heat exchange pipe 403. There are three second heat exchange pipes 403, and the second heat exchange pipes 403 are spiral-shaped. The coolant is swirled. After being delivered to the second inlet pipe 401, it enters the second heat exchange pipe 403 through the second branch pipe 402 to cool the upper mold 2. The second cooling water circuit 4 also includes a second outlet pipe 405 and a second cooling pipe 406. The end of the second manifold 404 is provided with the second outlet pipe 405, and the upper end of the second outlet pipe 405 is connected to the second cooling pipe 406. The second cooling pipe 406 is connected to the second inlet pipe 401 and is swirled. The coolant flowing into the second cooling pipe 406 will cool the middle part of the upper mold 2.

[0023] In summary, when using the rapid cooling water system of this injection mold, firstly according to... Figure 1 , Figure 2 and Figure 3 In the structure shown, when cooling is required after injection molding, an external pump will deliver coolant through pipes to the first inlet pipe 301 and the second inlet pipe 401. Then, the coolant in the first inlet pipe 301 will be diverted by the first branch pipe 302 into multiple first heat exchange pipes 303 to cool the sidewalls of the lower mold 1. Simultaneously, some coolant will flow into the first cooling pipe 306 to cool the top. Afterward, the coolant will enter the first outlet pipe through the first manifold 304. The coolant in the water pipe 305 is then discharged into the recycling equipment for collection. Then, the coolant in the second inlet pipe 401 enters the second heat exchange pipe 403 through the second branch pipe 402 to cool the side wall of the upper mold 2. The coolant flowing into the second cooling pipe 406 can also cool the middle part of the upper mold 2. After that, the coolant enters the second outlet pipe 405 through the second manifold 404 and is then discharged for collection. Finally, after cooling is completed, the supply of cooling water is stopped, and the mold is opened for unloading.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A rapid cooling water channel for an injection mold, comprising a lower mold (1) and a first cooling water channel (3), characterized in that, The upper mold (2) is mounted on the top of the lower mold (1). The first cooling water channel (3) is located inside the upper mold (2). The first cooling water channel (3) includes a first inlet pipe (301), a first branch pipe (302), a first heat exchange pipe (303), a first collector pipe (304), a first outlet pipe (305), and a first cooling pipe (306). The first branch pipe (302) is connected to one side of the first inlet pipe (301), and the first heat exchange pipe (303) is mounted on one end of the first branch pipe (302). The first collector pipe (304) is fixed to the end of the first heat exchange pipe (303), and the first outlet pipe (305) is connected to the end of the first collector pipe (304). The first cooling pipe (306) is mounted on the top of the first inlet pipe (301).

2. The rapid cooling water channel for an injection mold according to claim 1, characterized in that, The first heat exchange tube (303) is spiral-shaped, and the first heat exchange tube (303) is equidistant from the interior of the lower mold (1).

3. The rapid cooling water channel for an injection mold according to claim 1, characterized in that, The first cooling pipe (306) is vortex-shaped and is connected to the first water outlet pipe (305).

4. The rapid cooling water channel for an injection mold according to claim 1, characterized in that, The upper mold (2) is provided with a second cooling water channel (4), and the second cooling water channel (4) includes a second water inlet pipe (401) and a second branch pipe (402). The upper mold (2) is provided with a second water inlet pipe (401) at one end, and a second branch pipe (402) is connected to one side of the second water inlet pipe (401).

5. The rapid cooling water channel for an injection mold according to claim 4, characterized in that, The second cooling water circuit (4) also includes a second heat exchange pipe (403) and a second manifold (404). One end of the second branch pipe (402) is fixed with the second heat exchange pipe (403), and the end of the second heat exchange pipe (403) is connected to the second manifold (404).

6. The rapid cooling water channel for an injection mold according to claim 5, characterized in that, The number of the second heat exchange tubes (403) is three, and the second heat exchange tubes (403) are spiral in shape.

7. The rapid cooling water channel for an injection mold according to claim 5, characterized in that, The second cooling water path (4) also includes a second water outlet pipe (405) and a second cooling pipe (406). The end of the second manifold (404) is provided with a second water outlet pipe (405), and the upper end of the second water outlet pipe (405) is connected to the second cooling pipe (406).

8. The rapid cooling water channel for an injection mold according to claim 7, characterized in that, The second cooling pipe (406) is connected to the second water inlet pipe (401), and the second cooling pipe (406) is in a spiral shape.

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