Multi-channel cooling plastic suction mold

Abstract

The utility model discloses a multi-channel cooling plastic suction mold. The multi-channel cooling plastic suction mold comprises an upper shell, the upper shell is in a mold shape and is made of metal materials, a cavity is formed in the lower end of the upper shell, a gypsum board is arranged in the cavity in the lower end of the upper shell, a heat conduction strip made of metal materials is arranged at the lower end of the upper shell, a plurality of cooling bins are embedded in the gypsum board, the bin wall of each cooling bin is of a double-layer structure, and a cavity is formed in the inner wall of each cooling bin; the upper ends of the cooling bins are open, the heat conduction strips can be inserted into the openings of the cooling bins, and the multiple cooling bins are connected in series through water conveying pipes. The multi-channel cooling plastic suction mold is provided with the cooling bins and other related components to achieve the cooling effect on the mold, compared with an existing air cooling type heat dissipation mode, more heat in the mold can be taken away through water cooling heat dissipation, in addition, multi-channel heat transfer is achieved through the multiple cooling bins, and heat dissipation is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of mold cooling, in particular to a multi-channel cooling plastic blister mold. Background Art

[0002] The working principle of the blister mold is mainly based on vacuum adsorption and pressure difference. The plastic sheet is softened by heating and adhered to the mold surface by using the air pressure difference, and then cooled and formed.

[0003] The prior art discloses a multi-channel cooling blister mold, comprising a mold body and a cooling pipe. The mold body is provided with a cooling pipe inside, and also includes a mounting seat, a semiconductor refrigeration plate, a partition, a cooling aluminum plate, a cooling mechanism, a connecting pipe and an air outlet mechanism. A mounting seat is installed on one side of the cooling pipe, and a partition is provided inside the mounting seat. The cooling surface of the semiconductor refrigeration plate is connected to the cooling pipe, which causes the temperature in the cooling pipe to drop, and the heating surface of the semiconductor refrigeration plate transfers heat to the aluminum fin plate to absorb heat, and the aluminum fin plate is cooled by a cooling fan.

[0004] The above device uses air cooling to cool the inside of the mold. Since the mold has a certain thickness and has a lot of internal heat, the air cooling method is inefficient and the cooling effect is not obvious.

[0005] Therefore, it is necessary to provide a multi-channel cooling blister mold to solve the above technical problems. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a multi-channel cooling plastic blister mold that can improve the cooling effect of the mold.

[0007] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0008] A multi-channel cooling blister mold includes: an upper shell, which is in the shape of a mold, made of metal material, and has a cavity at the lower end. A gypsum board is provided in the cavity at the lower end of the upper shell, and a metal heat-conducting strip is provided at the lower end of the upper shell. Several cooling bins are embedded in the gypsum board. The cooling bin wall is a double-layer structure, and the inner wall has a cavity. The upper end of the cooling bin is open, and the heat-conducting strip can be inserted into the opening of the cooling bin. Several cooling bins are connected in series through water pipes.

[0009] Preferably, one of the water pipes on both sides of the cooling bin is a water inlet pipe and the other is a water outlet pipe. The water inlet pipe is installed on the lower side wall of the cooling bin, and the water outlet pipe is located on the upper side wall of the cooling bin.

[0010] Preferably, the ends of the water pipes on two adjacent cooling bins are provided with matching connectors.

[0011] Preferably, the lower end of the upper shell is a plane.

[0012] Preferably, the four side surfaces of the upper shell have a certain height, and the bottoms of the four side surfaces are provided with inward side skirts, and the gypsum board is clamped between the side skirts and the upper shell.

[0013] Preferably, the cooling bins are connected in series in multiple rows, and a water inlet pipe is provided at the lower end of the side wall of the first cooling bin in each row.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention achieves a cooling effect on the mold by providing a cooling chamber and other related components. Compared with the existing air-cooled heat dissipation method, water-cooled heat dissipation can take away more heat from the inside of the mold. In addition, multiple cooling chambers are provided to achieve multi-channel heat transfer, making the heat dissipation more uniform.

[0016] (2) The utility model arranges the water inlet pipe and the water outlet pipe in an upper and lower manner to mobilize the water in the cooling chamber to flow fully. If the water inlet pipe and the water outlet pipe are arranged at the same height, laminar flow phenomenon is likely to occur, that is, the cooling water flows faster at the water inlet pipe and the water outlet pipe, and flows slowly at other positions, which is not conducive to the transfer of heat in the heat conducting plate;

[0017] (3) The present invention fixes the gypsum board by providing side skirts on the one hand, and keeps the plane shape of the upper shell surface intact on the other hand. For example, if bolts are used for fixing, the bolts are installed on the side of the upper shell. When the plastic is vacuum-formed, the bolts block the hot-melt plastic plate, so that the shape of the bolts also appears on the plastic product, affecting the appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the multi-channel cooling blister mold provided by the utility model;

[0019] Figure 2 An exploded view of the multi-channel cooling blister mold provided by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the upper shell of the multi-channel cooling blister mold provided by the utility model;

[0021] Figure 4 This is a structural schematic diagram of the first embodiment of the multi-channel cooling blister mold provided by the utility model.

[0022] Among them, the names corresponding to the figure numbers are: 101, upper shell; 102, gypsum board; 103, heat conduction strip; 104, cooling chamber; 105, water pipe; 106, water inlet pipe. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0024] First embodiment:

[0025] like Figure 1-4 As shown, the multi-channel cooling blister mold provided by the present invention includes: an upper shell 101, the upper shell 101 is in the shape of the mold, and is made of brass. Brass has good thermal conductivity and is not easy to stick to plastic. The lower end of the upper shell 101 is open, and the interior is a cavity. A gypsum board 102 is provided in the cavity at the lower end of the upper shell 101. The gypsum board 102 is completely filled in the cavity to support the upper shell 101. At the same time, the gypsum board 102 is provided with a plurality of grooves. The lower end of the upper shell 101 is fixed with a heat-conducting strip 103 made of the same brass material. The heat-conducting strip 103 is in the form of a sheet and is used to transfer heat from the upper shell 101 and the gypsum board 102. Several cooling chambers 1 are embedded in the grooves of the gypsum board 102. 04. The wall of the cooling bin 104 is a double-layer structure, and the inner wall has a cavity for accommodating cooling water. The upper end of the cooling bin 104 is open, and the heat-conducting strip 103 can be inserted into the opening of the cooling bin 104. Several cooling bins 104 are connected in series through a water pipe 105, and the end of the water pipe 105 enters the cavity of the cooling bin 104. When in use, cooling water is introduced from the water pipe 105 on the surface of the cooling bin 104, and the cooling water enters the cavity of the cooling bin 104. The heat-conducting strip 103 is located in the cooling bin 104, and the heat is transferred to the heat-conducting strip 103 through the upper shell 101. Finally, the heat on the heat-conducting strip 103 passes through the outer wall of the cooling bin 104 and enters the cooling water, thereby taking away the heat on the mold.

[0026] The cooling effect of the mold is achieved by setting up related components such as the cooling chamber 104. Compared with the existing air-cooled heat dissipation method, water-cooled heat dissipation can take away more heat from the inside of the mold. In addition, multiple cooling chambers 104 are set up to achieve multi-channel heat transfer, and the heat dissipation is more uniform.

[0027] Second embodiment:

[0028] like Figure 2-4 As shown, one of the water pipes 105 on both sides of the cooling bin 104 is a water inlet pipe 106, and the other is a water outlet pipe. The water inlet pipe 106 is installed on the lower side wall of the cooling bin 104, and the water outlet pipe is located on the upper side wall of the cooling bin 104. After the cooling water is introduced into the water inlet pipe 106, the cooling water flows upward from the lower end of the cooling bin 104. When the liquid level reaches the water outlet pipe position, the water enters the water outlet pipe and then flows to the water inlet pipe 106 of the cooling bin 104 at the next adjacent position.

[0029] Setting the water inlet pipe 106 and the water outlet pipe in an upper and lower manner can mobilize the water in the cooling chamber 104 to flow fully. Setting the water inlet pipe 106 and the water outlet pipe at the same height is prone to laminar flow, that is, the cooling water flows faster at the water inlet pipe 106 and the water outlet pipe, and flows slowly at other positions, which is not conducive to transferring heat in the heat conducting plate.

[0030] To facilitate the installation of the water pipe 105, the ends of the water pipe 105 on the two adjacent cooling bins 104 are provided with matching connectors. During production, it is only necessary to produce a single cooling bin 104 unit, and then install the water pipe 105 on the cooling bin 104. Finally, use the connector on the water pipe 105 to connect the cooling bins 104 in series. The device can be manufactured by an assembly method, which is convenient for production.

[0031] Fourth embodiment:

[0032] like Figure 3 As shown, the lower end of the upper shell 101 is a plane. Compared with the uneven mold surface, the flat surface is more convenient for installing the heat conducting strip 103, reducing the production difficulty of the device.

[0033] Fifth embodiment:

[0034] In order to fix the gypsum board 102, the four side surfaces of the upper shell 101 have a certain height, and inward side skirts are provided at the bottom of the four side surfaces. The side skirts are horizontal plates perpendicular to the four side surfaces of the upper shell 101, or in other words, they are inward edges, so that the inner diameter of the side skirt position is smaller than the inner diameter of the cavity of the upper shell 101. In this way, the gypsum board 102 can be stuck between the side skirts and the upper shell 101.

[0035] By setting the side skirts, the gypsum board 102 is fixed on the one hand, and the planar shape of the surface of the upper shell 101 is kept intact on the other hand. For example, if bolts are used for fixing, the bolts are installed on the side of the upper shell 101. During the vacuum forming process, the bolts block the hot-melt plastic plate, so that the shape of the bolts also appears on the plastic product, affecting the appearance.

[0036] Sixth embodiment:

[0037] like Figure 4 As shown, there are multiple rows of cooling bins 104 connected in series, and a water inlet pipe 106 is provided at the lower end of the side wall of the first cooling bin 104 in each row. When in use, cooling water flows in from the water inlet pipe 106. During the flow, the cooling water continuously absorbs the heat in the mold and the temperature continues to rise, which results in a decrease in the heat transfer efficiency of the cooling water to the rear heat conducting strip 103.

[0038] By arranging multiple water inlet pipes 106 and multiple rows of cooling chambers 104 to work independently, the influence of the increase in cooling water temperature on the heat transfer of the rear heat conducting strips 103 is reduced.

[0039] Working principle: Cooling water is introduced into the water pipe 105 on the surface of the cooling bin 104, and the cooling water enters the cavity of the cooling bin 104. The heat conducting strip 103 is located inside the cooling bin 104. The heat is transferred to the heat conducting strip 103 through the upper shell 101. Finally, the heat on the heat conducting strip 103 passes through the outer wall of the cooling bin 104 and enters the cooling water, thereby taking away the heat on the mold.

[0040] The above embodiment is only one of the preferred implementation methods of the present invention and should not be used to limit the scope of protection of the present invention. Any changes or modifications that have no substantive meaning made to the main design concept and spirit of the present invention, as long as the technical problems they solve are still consistent with the present invention, should be included in the scope of protection of the present invention.

Claims

1. A multi-channel cooling blister mold, characterized in that: include: The upper shell (101) is in the shape of a mold and is made of metal material. The lower end of the upper shell (101) has a cavity. A gypsum board (102) is provided in the cavity at the lower end of the upper shell (101). A heat-conducting strip (103) made of metal material is provided at the lower end of the upper shell (101). Several cooling bins (104) are embedded in the gypsum board (102). The bin wall of the cooling bin (104) is a double-layer structure, and the inner wall has a cavity. The upper end of the cooling bin (104) is open, and the heat-conducting strip (103) can be inserted into the opening of the cooling bin (104). Several cooling bins (104) are connected in series through a water pipe (105).

2. The multi-channel cooling blister mold according to claim 1, characterized in that: One of the water pipes (105) on both sides of the cooling bin (104) is a water inlet pipe (106), and the other is a water outlet pipe. The water inlet pipe (106) is installed on the lower side wall of the cooling bin (104), and the water outlet pipe is located on the upper side wall of the cooling bin (104).

3. The multi-channel cooling blister mold according to claim 1, characterized in that: The ends of the water pipes (105) on the two adjacent cooling bins (104) are provided with matching connectors.

4. The multi-channel cooling blister mold according to claim 1, characterized in that: The lower end of the upper shell (101) is a plane.

5. The multi-channel cooling blister mold according to claim 1, characterized in that: The four side surfaces of the upper shell (101) have a certain height, and the bottoms of the four side surfaces are provided with inward-facing side skirts, and the gypsum board (102) is stuck between the side skirts and the upper shell (101).

6. The multi-channel cooling blister mold according to claim 1, characterized in that: The cooling bins (104) are connected in series in multiple rows, and a water inlet pipe (106) is provided at the lower end of the side wall of the first cooling bin (104) in each row.

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