Die cooling structure

Abstract

The utility model relates to the technical field of molds, and discloses a mold cooling structure which comprises a rear mold core, a rear mold insert and a plate B. The rear mold core covers the rear mold insert, a cooling cavity is formed between the rear mold core and the rear mold insert, the bottom surface of the rear mold core is supported on the plate B. A plurality of water cooling assemblies are uniformly distributed in the cooling cavity, and the water cooling assemblies are arranged in the cooling cavity. The water cooling assembly comprises a first water cooling unit and a plurality of second water cooling units arranged in the first water cooling unit. According to the utility model, the plurality of water-cooling assemblies are arranged, each water-cooling assembly comprises the first water-cooling unit and the plurality of second water-cooling units, and the first water-cooling units and the second water-cooling units are mutually independent in water inlet and outlet, so that the cooling water flow is effectively shortened, the cooling parameter balance of each loop is realized, the cooling of the mold is more uniform, and the production efficiency is improved. The stress warping of a large thin-wall highlight plane due to non-uniform temperature is avoided, the molding reject ratio of injection molding products is reduced, the stress warping scrap and the processing time after stress warping are reduced, and the productivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold cooling structure, and more particularly to an inlaid and assembled cooling structure of a large thin-walled high-gloss plane mold. Background Art

[0002] The culture panel of the biological cell factory in the medical laboratory is a large thin-walled high-gloss flat panel, which is obtained by injection molding of a mold. The mold includes a mold core, and a cooling pipeline circuit is arranged inside the mold core.

[0003] For large thin-walled high-gloss flat molds, the existing straight-through cooling water pipe cooling molds have the defects of long cooling water flow and uneven cooling. It is difficult to achieve the balance of cooling parameters in each circuit, and it is difficult to control the stress warping of the product during the injection molding process. If the injection molded product cannot meet the flatness requirements (less than or equal to 0.2mm), it will affect the yield of subsequent cell culture. Therefore, products with larger warping will be directly scrapped, and products with smaller warping need to adopt post-processing. Therefore, the use of existing mold injection not only has a low yield rate and increases the scrapping of stress warping, but also increases the post-processing time of stress warping, reducing production capacity. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a mold cooling structure to achieve uniform and rapid heat dissipation of the mold, avoid stress warping caused by uneven temperature of the product, reduce the molding defect rate of injection molded products, reduce stress warping scrap and process time after stress warping, improve production capacity, and reduce injection molding costs.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A mold cooling structure includes a rear mold core, a rear mold insert and a B plate, wherein the rear mold core covers the rear mold insert to form a cooling cavity between the rear mold core and the rear mold insert, the bottom surface of the rear mold core is supported on the B plate, and a plurality of water cooling components are evenly distributed inside the cooling cavity, and the water cooling components include a first water cooling unit and a plurality of second water cooling units arranged inside the first water cooling unit.

[0007] Preferably, the cross-section of the cooling cavity is rectangular, and the water cooling components are distributed in a rectangular array.

[0008] Preferably, there are four water cooling components, which are respectively arranged at the four corners of the cooling cavity.

[0009] Preferably, the first water cooling unit includes a first water pipe, which is enclosed in a rectangular shape, and the second water cooling unit is arranged inside the rectangle. The two ends of the first water pipe are respectively connected to a first water inlet pipe and a first water outlet pipe, and the water inlet of the first water inlet pipe and the water outlet of the first water outlet pipe both pass through the outer wall of the rear mold insert and are exposed to the outside of the cooling chamber.

[0010] Preferably, two second water cooling units are arranged inside the rectangle enclosed by the first water pipe, and the two second water cooling units are arranged along the long side direction of the rectangle.

[0011] Preferably, the second water cooling unit includes a second water pipe, which is serpentine in shape, and a second water inlet pipe and a second water outlet pipe are respectively provided at both ends of the second water pipe. The water inlet of the second water inlet pipe and the water outlet of the second water outlet pipe both pass through the outer wall of the rear mold insert and are exposed to the outside of the cooling chamber.

[0012] Preferably, waterproof rings are provided between the rear mold core and the rear mold insert, and between the rear mold core and the B plate.

[0013] A mold cooling structure of an embodiment of the utility model has the beneficial effect compared with the prior art: by evenly distributing multiple water-cooling components inside the cooling chamber, each water-cooling component includes a first water-cooling unit and multiple second water-cooling units arranged inside the first water-cooling unit, and the water inlet and outlet of the first water-cooling unit and the second water-cooling unit are independent of each other, thereby effectively shortening the cooling water flow, achieving the balance of cooling parameters of each circuit, making the cooling of the mold more uniform, and effectively achieving the effect of rapid heat dissipation, avoiding stress warping of large thin-walled high-gloss planes due to uneven temperature, reducing the molding defect rate of injection molded products, reducing stress warping scrap and process time after stress warping, improving production capacity, and reducing injection molding costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the mold cooling structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the mold cooling structure of the utility model without the B plate and the rear mold core.

[0016] Figure 3 It is a structural schematic diagram of the water cooling component of the utility model.

[0017] Among them: 1-rear mold core, 2-rear mold insert, 3-B plate, 4-water cooling assembly, 41-first water cooling unit, 411-first water pipe, 412-first water inlet pipe, 413-first water outlet pipe, 42-second water cooling unit, 421-second water pipe, 422-second water inlet pipe, 423-second water outlet pipe. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] like Figure 1-2 As shown, a mold cooling structure of a preferred embodiment of the utility model comprises a rear mold core 1, a rear mold insert 2 and a B plate 3. The rear mold core 1 covers the rear mold insert 2 to form a cooling cavity with the rear mold insert 2. The bottom surface of the rear mold core 1 is supported on the B plate 3. A plurality of water cooling components 4 are evenly distributed inside the cooling cavity. The water cooling components 4 comprise a first water cooling unit 41 and a plurality of second water cooling units 42 arranged inside the first water cooling unit 41. Waterproof rings are arranged between the rear mold core 1 and the rear mold insert 2, and between the rear mold core 1 and the B plate 3 to ensure waterproof sealing.

[0020] Based on the mold cooling structure of the above technical features, multiple water-cooling components 4 are evenly distributed inside the cooling cavity, and each water-cooling component 4 includes a first water-cooling unit 41 and multiple second water-cooling units 42 arranged inside the first water-cooling unit 41. The water inlet and outlet of the first water-cooling unit 41 and the second water-cooling unit 42 are independent of each other, thereby effectively shortening the cooling water flow, achieving the balance of cooling parameters of each circuit, making the cooling of the mold more uniform, and effectively achieving the effect of rapid heat dissipation, avoiding stress warping of large thin-walled high-gloss planes due to uneven temperature, reducing the molding defect rate of injection molded products, reducing stress warping scrap and process time after stress warping, improving production capacity, and reducing injection molding costs.

[0021] In addition, the mold using the cooling device has a flatness of the injection molded product of less than 0.2 mm, allowing end users to optimize the space occupied by their cell culture production and increase cell culture output.

[0022] In this embodiment, the cross section of the cooling cavity on the plane of the B plate 3 is rectangular, and the water cooling components 4 are distributed in a rectangular array. Specifically, there are four water cooling components 4, which are respectively arranged at the four corners of the cooling cavity, that is, on a cross section of the cooling cavity, the water cooling component 4 completely covers the cross section to achieve the best cooling effect. The four water cooling components 4 correspond to the four parts of the thin wall of the injection molded product, respectively, and surround the four parts, effectively improving the heat dissipation and cooling effect.

[0023] Please see attached Figure 3In this embodiment, the first water cooling unit 41 includes a first water pipe 411, and the first water pipe 411 is enclosed in a rectangular shape. The second water cooling unit 42 is arranged inside the rectangle. The two ends of the first water pipe 411 are respectively connected to the first water inlet pipe 412 and the first water outlet pipe 413, that is, the first water pipe 411 is not completely closed, and there is a certain gap at its two ends, which are respectively connected to the first water inlet pipe 412 and the first water outlet pipe 413. The water inlet of the first water inlet pipe 412 and the water outlet of the first water outlet pipe 413 both pass through the outer wall of the rear mold insert 2 and are exposed to the outside of the cooling cavity.

[0024] In the specific configuration, two second water cooling units 42 are arranged inside the rectangle enclosed by the first water pipe 411, and the two second water cooling units 42 are arranged along the long side direction of the rectangle. The second water cooling unit 42 includes a second water pipe 421, and the second water pipe 421 is serpentine, which can effectively increase the length of the water pipe, thereby increasing the cooling area and achieving the best heat dissipation and cooling effect. The two ends of the second water pipe 421 are respectively provided with a second water inlet pipe 422 and a second water outlet pipe 423, and the water inlet of the second water inlet pipe 422 and the water outlet of the second water outlet pipe 423 are both exposed to the outside of the cooling cavity through the outer wall of the rear mold insert 2.

[0025] It can be seen from the structures of the first water cooling unit 41 and the second water cooling unit 42 that they both comply with the one-in-one-out principle. Such a parallel connection arrangement effectively shortens the cooling water flow and achieves a balance in cooling parameters of each circuit.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A mold cooling structure, characterized in that: It includes a rear mold core, a rear mold insert and a B plate, wherein the rear mold core covers the rear mold insert to form a cooling cavity between the rear mold core and the rear mold insert, the bottom surface of the rear mold core is supported on the B plate, and a plurality of water cooling components are evenly distributed inside the cooling cavity, and the water cooling components include a first water cooling unit and a plurality of second water cooling units arranged inside the first water cooling unit.

2. The mold cooling structure according to claim 1, characterized in that: The cross section of the cooling cavity is rectangular, and the water cooling components are distributed in a rectangular array.

3. The mold cooling structure according to claim 2, characterized in that: There are four water cooling components, which are respectively arranged at the four corners of the cooling cavity.

4. The mold cooling structure according to claim 1, characterized in that: The first water cooling unit includes a first water pipe, which forms a rectangular shape. The second water cooling unit is arranged inside the rectangle. The two ends of the first water pipe are respectively connected to a first water inlet pipe and a first water outlet pipe. The water inlet of the first water inlet pipe and the water outlet of the first water outlet pipe both pass through the outer wall of the rear mold insert and are exposed to the outside of the cooling cavity.

5. The mold cooling structure according to claim 4, characterized in that: Two second water cooling units are arranged inside the rectangle enclosed by the first water pipe, and the two second water cooling units are arranged along the long side direction of the rectangle.

6. The mold cooling structure according to any one of claims 1, characterized in that: The second water cooling unit includes a second water pipe, which is serpentine in shape. A second water inlet pipe and a second water outlet pipe are respectively provided at both ends of the second water pipe. The water inlet of the second water inlet pipe and the water outlet of the second water outlet pipe both pass through the outer wall of the rear mold insert and are exposed to the outside of the cooling cavity.

7. The mold cooling structure according to any one of claims 1 to 6, characterized in that: A waterproof ring is provided between the rear mold core and the rear mold insert, and between the rear mold core and the B plate.

Images