Cooling water jacket for die-casting die

Abstract

The utility model relates to the field of cooling water jackets, in particular to a cooling water jacket for a die-casting die, which comprises a jacket body, a mounting hole for penetrating through a pouring gate is arranged on the jacket body, a plurality of cooling holes are arranged in the jacket body and distributed around the axis of the mounting hole, and a detachable water cooling component is arranged on the jacket body. The water cooling assembly comprises a cooling sleeve, a cooling plate and a water pipe, the cooling sleeve is perpendicularly arranged on the cooling plate, a water channel is arranged in the cooling sleeve, a pipe groove used for arranging the water pipe is formed in the cooling plate, the water pipe is arranged in the pipe groove and communicated with the water channel, and the end, away from the water channel, of the water pipe extends to the side wall of the cooling plate and is provided with a pipeline connector. The cooling plate can be detachably connected with the sleeve body, the cooling sleeve is inserted into the cooling hole when the cooling plate is connected with the sleeve body, cooling water does not make direct contact with the sleeve body, and when the sleeve body cracks slightly due to thermal expansion and cold contraction, the situation of water leakage does not occur.

Description

Technical Field

[0001] The utility model relates to the field of cooling water jackets, in particular to cooling water jackets for die-casting moulds. Background Art

[0002] Die-casting dies are used in the pressure casting (or die-casting for short). They fill the mold cavity with liquid or semi-liquid metal under high pressure and at high speed, where it rapidly solidifies under pressure to produce a casting. The basic process of die-casting involves the following: molten metal is first poured into the mold cavity at a low or high speed. The mold has a movable cavity surface, which is pressurized and forged as the molten metal cools. This not only eliminates shrinkage defects in the blank, but also achieves a forged, broken grain structure within the blank, significantly improving its overall mechanical properties.

[0003] The water jacket of the die-casting mold is an important component of the die-casting mold. It plays a key role in the cooling system of the mold. The water jacket reduces the temperature of the mold by circulating coolant to prevent the mold from deformation or damage due to high temperature, thereby ensuring the dimensional accuracy and surface quality of the die-casting. Reasonable cooling can reduce the thermal stress of the mold and prevent the mold from cracking or cracking due to overheating, thereby extending the service life of the mold.

[0004] The cooling structure of the existing die-casting mold water jacket is usually achieved by drilling cooling holes and then connecting cooling pipes. The cooling water directly enters the cooling holes and contacts the jacket body. The flowing water takes away the heat to achieve the cooling effect. However, due to the thin wall thickness of the water jacket, it is easy to crack and leak due to thermal expansion and contraction during use. The damage rate of the water jacket is high and the service life is short. Utility Model Content

[0005] In order to overcome the deficiencies of the existing technical solutions, the utility model provides a cooling water jacket for a die-casting mold, which can effectively solve the technical problem of water leakage caused by slight cracks in the jacket body.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A cooling water jacket for a die-casting mold includes a jacket body, a mounting hole for passing through a casting port is provided on the jacket body, the inner wall of the mounting hole can be fitted with the side wall of the casting port so that heat can be transferred between the two, a plurality of cooling holes are provided in the jacket body, and the plurality of cooling holes are distributed around the axis of the mounting hole, and a detachable water-cooling assembly is provided on the jacket body, the water-cooling assembly includes a cooling jacket, a cooling plate and a water pipe, the cooling jacket is vertically arranged on the cooling plate, a water channel is provided in the cooling jacket, a pipe groove for arranging the water pipe is provided in the cooling plate, the water pipe is arranged in the pipe groove and communicated with the water channel, an end of the water pipe away from the water channel extends to the side wall of the cooling plate, and a pipe joint is provided, the cooling plate can be detachably connected to the jacket body, and the cooling jacket is inserted into the cooling hole when the cooling plate is connected to the jacket body.

[0008] Furthermore, a positioning boss is provided on the sleeve, and a docking hole is provided on the cooling plate. When the cooling plate and the sleeve are installed, the positioning boss is inserted into the docking hole.

[0009] Furthermore, the sleeve is provided with screw holes, and the cooling plate is provided with connecting holes. The cooling plate is connected to the sleeve by bolts passing through the connecting holes and tightening them into the screw holes.

[0010] Furthermore, a mounting hole is provided on the cooling plate, and a threaded portion and a hexagonal nut portion are provided on the cooling sleeve. The threaded portion is threadedly connected to the mounting hole, and the hexagonal nut portion is used to tighten the cooling sleeve to the cooling plate.

[0011] Furthermore, the side wall of the cooling plate is provided with two pipe joints, both of which are connected to the water pipe, and the two pipe joints are used for water inlet and water outlet respectively.

[0012] Furthermore, a three-way connector is provided on the water pipe, the three-way connector corresponds to the cooling jacket, and the water pipe is connected to the cooling jacket through the three-way connector.

[0013] Compared with the prior art, the beneficial effects of the present invention are: cooling water enters the cooling jacket through the water pipe, and cools the jacket body through the cooling jacket. The cooling water does not directly contact the jacket body. When the jacket body has slight cracks due to thermal expansion and contraction, water leakage will not occur. At the same time, since the function of the jacket body is cooling, slight cracks do not affect its normal cooling effect. Therefore, the jacket body can continue to be used, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 This is an exploded view of the structure of the present utility model;

[0016] Figure 3 This is a schematic diagram of the installation of the cooling plate and the cooling jacket in the present invention;

[0017] Figure 4 This is a schematic diagram of the cooling jacket structure in the utility model;

[0018] Numbers in the figure: 1-sleeve body, 2-mounting hole, 3-cooling hole, 4-water cooling assembly, 5-cooling jacket, 501-threaded part, 502-hexagonal nut part, 6-cooling plate, 7-water pipe, 8-pipe groove, 9-pipe joint, 10-positioning boss, 11-docking hole, 12-tee connector. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The following combination Figure 1-Figure 4 The cooling water jacket for die casting mold of the utility model is described in detail:

[0021] A cooling water jacket for a die-casting mold comprises a jacket body 1, which is provided with a mounting hole 2 for passing through a casting port, the inner wall of the mounting hole 2 can be fitted with the side wall of the casting port so that heat can be transferred between the two, a plurality of cooling holes 3 are provided in the jacket body 1, and the plurality of cooling holes 3 are distributed around the axis of the mounting hole 2, the jacket body 1 is provided with a detachable water-cooling assembly 4, the water-cooling assembly 4 comprises a cooling jacket 5, a cooling plate 6 and a water pipe 7, the cooling jacket 5 is vertically arranged on the cooling plate 6, a water channel is provided in the cooling jacket 5, a pipe groove 8 for arranging the water pipe 7 is provided in the cooling plate 6, the water pipe 7 is arranged in the pipe groove 8 and communicates with the water channel, the end of the water pipe 7 away from the water channel extends to the side wall of the cooling plate 6, and is provided with a pipe joint 9, the cooling plate 6 can be detachably connected to the jacket body 1, and the cooling jacket 5 is inserted into the cooling hole 3 when the cooling plate 6 is connected to the jacket body 1.

[0022] The sleeve 1 is provided with a positioning boss 10, and the cooling plate 6 is provided with a docking hole 11. When the cooling plate 6 and the sleeve 1 are installed, the positioning boss 10 is inserted into the docking hole 11, which can achieve quick positioning and installation, and avoid misalignment of the cooling plate 6 when installed. The sleeve 1 is provided with a screw hole, and the cooling plate 6 is provided with a connecting hole. The cooling plate 6 is connected to the sleeve 1 by passing a bolt through the connecting hole and tightening it into the screw hole.

[0023] The cooling plate 6 is provided with a mounting hole 2, and the cooling jacket 5 is provided with a threaded portion 501 and a hexagonal nut portion 502. The threaded portion 501 is threadedly connected to the mounting hole 2, and the hexagonal nut portion 502 is used to tighten the cooling jacket 5 to the cooling plate 6. The water pipe 7 is provided with a three-way connector 12, and the three-way connector 12 corresponds to the cooling jacket 5. The water pipe 7 is connected to the cooling jacket 5 through the three-way connector 12. Each cooling jacket 5 can be disassembled and assembled individually. During maintenance, only one of the cooling jackets 5 can be disassembled, inspected or replaced. The side wall of the cooling plate 6 is provided with two pipe joints 9, and the two pipe joints 9 are connected to the water pipe 7. The two pipe joints 9 are used for water inlet and water outlet, respectively. The cooling water enters the water pipe 7 from the pipe joint 9 at the water inlet end, and then flows into each cooling jacket 5 through the three-way connector 12. Finally, the high-temperature liquid is discharged from the pipe joint 9 at the water outlet end.

[0024] This embodiment is used for a cooling water jacket of a die-casting mold. Cooling water enters the cooling jacket 5 through a water pipe 7, and cools the jacket body 1 through the cooling jacket 5. The cooling water does not directly contact the jacket body 1. When the jacket body 1 has slight cracks due to thermal expansion and contraction, water leakage will not occur. At the same time, since the function of the jacket body 1 is cooling, slight cracks do not affect its normal cooling effect. Therefore, the jacket body 1 can continue to be used, thereby increasing its service life. The cooling jacket 5 is installed on the cooling plate 6 in advance, and then the cooling plate 6 is installed on the jacket body 1. The assembly of the water-cooling component 4 and the jacket body 1 is more convenient, and there is no need to install the cooling jackets 5 into the jacket body one by one during disassembly.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A cooling water jacket for a die-casting mold, comprising a jacket body, a mounting hole for passing through a pouring nozzle, an inner wall of the mounting hole being adapted to fit the side wall of the pouring nozzle to allow heat to be transferred therebetween, a plurality of cooling holes being provided in the jacket body, the plurality of cooling holes being distributed around the axis of the mounting hole, and characterized in that: The sleeve is provided with a detachable water-cooling assembly, which includes a cooling jacket, a cooling plate and a water pipe. The cooling jacket is vertically arranged on the cooling plate, a water channel is provided in the cooling jacket, a pipe groove for arranging the water pipe is provided in the cooling plate, the water pipe is arranged in the pipe groove and communicates with the water channel, one end of the water pipe away from the water channel extends to the side wall of the cooling plate and is provided with a pipe joint. The cooling plate can be detachably connected to the sleeve, and the cooling jacket is inserted into the cooling hole when the cooling plate is connected to the sleeve.

2. The cooling water jacket for a die-casting mold according to claim 1, characterized in that: The sleeve body is provided with a positioning boss, and the cooling plate is provided with a docking hole. When the cooling plate and the sleeve body are installed, the positioning boss is inserted into the docking hole.

3. The cooling water jacket for a die-casting mold according to claim 1, characterized in that: The sleeve is provided with screw holes, and the cooling plate is provided with connecting holes. The cooling plate is connected to the sleeve by bolts passing through the connecting holes and being tightened into the screw holes.

4. The cooling water jacket for a die-casting mold according to any one of claims 1 to 3, characterized in that: The cooling plate is provided with a mounting hole, and the cooling sleeve is provided with a threaded portion and a hexagonal nut portion. The threaded portion is threadedly connected to the mounting hole, and the hexagonal nut portion is used to tighten the cooling sleeve onto the cooling plate.

5. The cooling water jacket for a die-casting mold according to any one of claims 1 to 3, characterized in that: The side wall of the cooling plate is provided with two pipe joints, both of which are connected to water pipes, and the two pipe joints are used for water inlet and water outlet respectively.

6. The cooling water jacket for a die-casting mold according to any one of claims 1 to 3, characterized in that: The water pipe is provided with a three-way connector, which corresponds to the cooling jacket, and the water pipe is communicated with the cooling jacket through the three-way connector.

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