Cooling channel of injection mold

Abstract

The utility model discloses a cooling channel of an injection mold, which relates to the technical field of injection molds and comprises two surrounding cooling areas arranged on the side surface of a fixed mold forming cavity, two first cooling areas and a second cooling area arranged at the bottom of the fixed mold forming cavity, the two first cooling areas comprise a plurality of first cooling channels, and the second cooling areas comprise a plurality of second cooling channels. One ends of the first cooling channels are connected through a first water inlet pipe, and the other ends of the first cooling channels are connected through a first water outlet pipe; by means of multi-layer surrounding type arrangement, cooling is sufficient, and products are evenly cooled by means of symmetrical arrangement around the channels; the two first cooling areas and the second cooling area are additionally arranged at the bottom of the forming cavity, the cooling water flowing path is shortened, the middle is surrounded by the two sides, and the middle and the two sides of the forming cavity can be cooled more uniformly; as the center temperature of the mold is higher, the diameter of the second cooling channel is larger than that of the first cooling channel, the center temperature cooling speed of the mold is increased, and the temperature is balanced with the two-side temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a cooling channel for an injection mold. Background Art

[0002] Injection molds are tools that ensure the complete structure and precise dimensions of plastic products. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and molten plastic into the mold cavity under high pressure by an injection molding machine, and then obtaining a molded product after cooling and solidification.

[0003] For example, the prior art Chinese utility model patent (CN218928535U) discloses an injection mold cooling device, including a fixed mold, on which a cooling channel surrounding a molding cavity is opened. The number of cooling channels is not less than two, and the cooling channels are arranged along the height direction of the molding cavity. The side of the fixed mold is provided with a coolant inlet and a coolant outlet connected to the cooling channel. The cooling device has the characteristics of convenient processing and good cooling effect, complete overall functions, and strong practicality.

[0004] However, the prior art has the following defects: the device can only cool the sides of the molding cavity, but cannot cool the bottom of the molding cavity, which may cause the product to deform due to uneven heating during molding.

[0005] Based on this, an injection mold cooling channel is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0006] The purpose of the utility model is to provide a cooling channel for an injection mold to solve the problems in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A cooling channel for an injection mold includes: two surrounding cooling zones arranged on the sides of a fixed mold forming cavity, two first cooling zones and one second cooling zone arranged at the bottom of the fixed mold forming cavity, the two first cooling zones including multiple first cooling channels, one end of the multiple first cooling channels being connected by a first water inlet pipe, and the other end of the first cooling channels being connected by a first water outlet pipe.

[0009] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0010] In an optional solution, the second cooling zone includes a plurality of second cooling channels that are horizontally and equidistantly distributed, one end of the plurality of second cooling channels is connected by a second water inlet pipe, and the other end of the second cooling channels is connected by a second water outlet pipe.

[0011] In an optional solution: the surrounding cooling zone includes three surrounding channels surrounding the side of the molding cavity, an inlet diversion groove connected to the liquid inlets of the three surrounding channels, and an outlet confluence groove connected to the liquid outlets of the three surrounding channels.

[0012] In an optional solution, the two first cooling zones are symmetrically distributed at both ends of the second cooling zone.

[0013] In an optional solution, the two surrounding cooling zones are symmetrically distributed on both sides of the fixed mold forming cavity.

[0014] In an optional solution, the diameter of the first cooling channel is smaller than the diameter of the second cooling channel.

[0015] In an optional solution: a sealing ring is provided at the inlet diversion groove and the outlet confluence groove.

[0016] In an optional solution, the distance between every two adjacent surround channels in the three surround channels is equal.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The utility model adopts a multi-layer surround layout, which is close to the molding cavity and fully cooled. The symmetrical arrangement of the surround channels on both sides makes the product cool down evenly and reduces defective products. Two first cooling zones and one second cooling zone are added to the bottom of the molding cavity, shortening the cooling water flow path. The two sides surround the middle, so that the middle and both sides of the molding cavity can be cooled more evenly. Since the center temperature of the mold is higher, the diameter of the second cooling channel is larger than that of the first cooling channel, which accelerates the cooling speed of the center temperature of the mold and makes it balanced with the temperature on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 This is a structural schematic diagram of the first water outlet pipe of the utility model.

[0021] Figure 3 This is a schematic structural diagram of the surround channel of the present invention.

[0022] Figure 4 This is a schematic structural diagram of the first cooling channel and the second cooling channel of the present invention.

[0023] Notes on figure numbers: 101, first cooling channel, 102, first water inlet pipe, 103, first water outlet pipe, 201, second cooling channel, 202, second water inlet pipe, 203, second water outlet pipe, 301, surrounding channel, 302, inlet diversion groove, 303, outlet confluence groove, 300, sealing ring. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, Figures 1-4 As shown, an injection mold cooling channel includes: two surrounding cooling zones provided on the sides of the fixed mold molding cavity, two first cooling zones and one second cooling zone provided at the bottom of the fixed mold molding cavity. The two first cooling zones include multiple first cooling channels 101, one end of each of the multiple first cooling channels 101 is connected by a first water inlet pipe 102, and the other end of each of the first cooling channels 101 is connected by a first water outlet pipe 103. The molded product is sprayed into the fixed mold molding cavity, and cooling water is then introduced into the two first cooling zones, the second cooling zone, and the two surrounding cooling zones. The cooling water enters the first cooling channels 101 through the first water inlet pipe 102 and is discharged through the first water outlet pipe 103 to evenly cool the product and ensure product quality.

[0026] In this embodiment, if Figure 4 As shown, the second cooling zone includes a plurality of second cooling channels 201 distributed horizontally and equidistantly. One end of the plurality of second cooling channels 201 is connected by a second water inlet pipe 202, and the other end of the second cooling channel 201 is connected by a second water outlet pipe 203. Water enters the second cooling zone from the second water inlet pipe 202, passes through the second cooling channel 201, and is discharged from the second water outlet pipe 203, thereby evenly cooling the product.

[0027] In one embodiment, Figure 1 and Figure 3 As shown, the surround cooling zone includes three surround channels 501 surrounding the sides of the forming cavity, three inlet diverter troughs 302 connected to the liquid inlets of the surround channels 301, and three outlet confluence troughs 303 connected to the liquid outlets of the surround channels 301. Cooling water is introduced from the inlet diverter troughs 302 and then flows into the surround channels 301. The multiple surround channels 301 are arranged in a surrounding manner around the forming cavity, and are close to the forming cavity, ensuring sufficient cooling and excellent cooling effect. The cooling water then flows out of the outlet confluence trough 303, evenly cooling the product.

[0028] In one embodiment, Figure 4 As shown, the two first cooling zones are symmetrically distributed at both ends of the second cooling zone. By surrounding the middle second cooling zone on both sides of the two first cooling zones, the middle and both sides of the molding cavity can be cooled more evenly.

[0029] In one embodiment, Figure 3As shown, the two surrounding cooling zones are symmetrically distributed on both sides of the fixed mold forming cavity, and the surrounding channels 301 are symmetrically arranged on both sides so that both sides of the product are cooled evenly to avoid deformation.

[0030] In one embodiment, Figure 4 As shown, the diameter of the first cooling channel 101 is smaller than that of the second cooling channel 201. Since the temperature at the center of the mold is higher, the diameter of the second cooling channel 201 is larger than the diameter of the first cooling channel 101, which accelerates the cooling speed of the center temperature of the mold and makes it balanced with the temperature on both sides.

[0031] In one embodiment, Figure 1 and Figure 2 As shown, a sealing ring 400 is provided at the inlet diverter groove 302 and the outlet converging groove 303 to ensure air tightness when the inlet diverter groove 302 and the outlet converging groove 303 are connected.

[0032] In one embodiment, Figure 1 As shown, the distance between every two adjacent surrounding channels 301 is equal, which ensures uniform cooling of the product and reduces defective products.

[0033] The above embodiment discloses a cooling channel for an injection mold, wherein a molded product is sprayed into a directional fixed mold molding cavity, cooling water enters the first cooling channel 101 from the first water inlet pipe 102, and is then discharged from the first water outlet pipe 103 to evenly cool the product, water enters the second cooling zone from the second water inlet pipe 202, passes through the second cooling channel 201, and is then discharged from the second water outlet pipe 203 to evenly cool the product, cooling water is introduced from the inlet diversion groove 302, and the cooling water enters the surrounding channel 301, and multiple surrounding channels 301 are arranged around the molding cavity, close to the molding cavity, sufficient cooling, and good cooling effect, and the cooling water then flows out from the outlet confluence groove 303 to evenly cool the product. The two first cooling zones surround the second cooling zone in the middle on both sides, so that the middle and both sides of the molding cavity can be cooled more evenly.

[0034] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An injection mold cooling channel, comprising two surrounding cooling zones arranged on the sides of the fixed mold molding cavity, two first cooling zones and one second cooling zone arranged at the bottom of the fixed mold molding cavity, characterized in that: The two first cooling zones include a plurality of first cooling channels (101), one end of the plurality of first cooling channels (101) is connected via a first water inlet pipe (102), and the other end of the first cooling channels (101) is connected via a first water outlet pipe (103).

2. The injection mold cooling channel according to claim 1, characterized in that: The second cooling zone comprises a plurality of second cooling channels (201) distributed horizontally and equidistantly, one end of the plurality of second cooling channels (201) being connected via a second water inlet pipe (202), and the other end of the second cooling channels (201) being connected via a second water outlet pipe (203).

3. The injection mold cooling channel according to claim 1, characterized in that: The surrounding cooling zone comprises three surrounding channels (301) surrounding the side of the molding cavity, an inlet diversion groove (302) connected to the liquid inlets of the three surrounding channels (301), and an outlet confluence groove (303) connected to the liquid outlets of the three surrounding channels (301).

4. The injection mold cooling channel according to claim 1, characterized in that: The two first cooling zones are symmetrically distributed at two ends of the second cooling zone.

5. The injection mold cooling channel according to claim 1, characterized in that: The two surrounding cooling zones are symmetrically distributed on both sides of the fixed mold forming cavity.

6. The injection mold cooling channel according to claim 1, characterized in that: The diameter of the first cooling channel (101) is smaller than the diameter of the second cooling channel (201).

7. The injection mold cooling channel according to claim 3, characterized in that: Sealing rings (400) are provided at the inlet diversion groove (302) and the outlet confluence groove (303).

8. The injection mold cooling channel according to claim 3, characterized in that: Among the three surrounding channels (301), the distance between every two adjacent surrounding channels (301) is equal.

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