KR20030020993A - Cooling system of metal mold - Google Patents

Abstract

PURPOSE: A cooling device of metal mold is provided to form a product of high quality by installing a cooling means at a forming frame so that contraction ratio of a mold product fabricated by die casting is reduced, and preventing the product from being contracted as the forming frame is evenly cooled by cooling. CONSTITUTION: In a metal mold in which a sleeve rotated with a core(1), a mold frame, is installed to form a mold product, and the product is formed by the core(1) and sleeve, the cooling device of the metal mold is characterized in that cooling jackets(3) connected to each other are formed at the core, a cooling fluid is supplied to the cooling jackets(3) to cool the core(1), and plates(4) on which embossing is formed are installed in the cooling jackets(3) to increase contact area of the cooling fluid, wherein a cooling jacket is formed inside a sleeve into which a movable mold frame is inserted as long as a moving distance of the mold frame so that cooling action is performed in a stroke of the mold frame, and wherein a cooling jacket is directly installed at the local high heating part of the core(1) so that local cooling is performed.

Description

Cooling System of Mold {COOLING SYSTEM OF METAL MOLD}

The present invention is provided with a cooling means in the molding die to reduce the shrinkage of the mold product produced by die casting, and to form a good quality product by preventing the shrinkage of the product while the mold is cooled evenly by the cooling. It relates to a cooling device of a mold.

In the case of molding a die product by die casting or the like, a heated material is supplied to a core and a sleeve for die casting, and the supplied material is molded into a product set by the core and the like. High heat was generated due to the high temperature and the like, and the shrinkage ratio of the product molded by the high temperature was high.

In addition, in order to reduce the shrinkage rate of the product due to the high temperature, a margin range is set according to the shrinkage rate in the core and the like, and when the margin range is set, it is difficult to ensure the accuracy of the product. Was doing.

Therefore, the conventional molding method for setting the margin range in consideration of the shrinkage rate was premised on the post-processing of the molded product, and thus there was a wasteful step due to the high number of labors and the inability to produce an accurate product. In this case, since the continuous high heat is applied to the core or the like, deformation of the core or the like has been caused, and since the lifespan of the core and the sleeve is greatly shortened, there is a problem in that the productivity is greatly reduced.

The present invention has been made in view of the above-described conventional problems, the present invention is provided with a cooling means in the mold to reduce the shrinkage of the mold product produced by die casting, the mold by the cooling evenly It is intended to provide a cooling device of a mold that can be molded in a good quality product by preventing the shrinkage of the product while being cooled, which will be described in detail below based on the accompanying drawings.

1 is a configuration diagram showing a state provided with a cooling means in the molding core of the embodiment of the present invention

FIG. 2 is a side view of FIG. 1

Figure 3 is a block diagram showing a state provided with a cooling means in the sleeve to move the mold of the embodiment of the present invention

4 is an installation state cross-sectional view showing a state with a local cooling means according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawing

1: core

2: sleeve

3,301,302: Cooling jacket

4: plate

5: removable mold

In order to mold a mold product, it has a core (1) and a sleeve (2) which is rotated, and in order to mold the product by the core (1) and the sleeve (2), the core (1) is in communication with each other The cooling jacket (3) is formed and the cooling jacket (3) is configured to cool the core (1) by supplying a cooling fluid. The cooling jacket (3) is provided with an embossed plate (4) for the cooling. It is designed to increase the contact area of the fluid.

In addition, in the sleeve 2 into which the movable mold 5 is inserted, a cooling jacket 301 is formed as long as the moving distance of the mold 5 so that a cooling action is performed in the stroke of the mold 5. In the local high temperature portion of (1), the cooling jacket 302 may be installed in a direct manner so that local cooling may be achieved.

The present invention configured as described above has a core (1) and a sleeve (2) which is rotated in order to mold the mold product, and in order to mold the product by the core (1) and the sleeve (2), A cooling jacket 3 is formed in the core 1 to communicate with each other. The cooling jacket 3 is supplied with a cooling fluid. In the above state, the core 1 and the sleeve 2 are installed in a mold. When the heated material is supplied to the mold in a state in which the mold is molded, the product is molded by the mold, and the core 1 and the sleeve 2 are cooled along the cooling jacket 3. Cooling is achieved by the fluid, and by this cooling action it is possible to significantly reduce the shrinkage of the molded product.

In addition, when the embossed plate 4 is installed in the cooling jacket 3, the contact area of the cooling fluid flowing along the cooling jacket 3 can be increased, and the cooling efficiency can be further improved. In addition, when the cooling jacket 301 is formed in the sleeve 2 into which the movable mold 5 is inserted, as long as the moving distance of the mold 5, the cooling operation is performed in all of the working strokes of the mold 5. In the local high temperature portion of the core 1, the cooling jacket 302 may be installed in a direct manner so that local cooling may be performed according to the local high temperature of the core 1.

The present invention as described above forms the cooling jacket on the core and the sleeve for forming the product in forming the above and the product by die casting or the like, so that the cooling fluid flows along the cooling jacket and the core 1 and the sleeve 2 ) Can be efficiently cooled, the life of the core (1) and the sleeve (2) can be longer, and the shrinkage rate of the molded product and the shrinkage rate of the core, etc. can be significantly lowered so that a good quality product It can be produced smoothly, and thus has the feature of lighting that can greatly improve the productivity.

Claims (3)

In order to mold a mold product, it has a core (1) and a sleeve (2) which is rotated, and in order to mold the product by the core (1) and the sleeve (2), the core (1) is in communication with each other The cooling jacket (3) is formed and the cooling jacket (3) is configured to cool the core (1) by supplying a cooling fluid. The cooling jacket (3) is provided with an embossed plate (4) for the cooling. Cooling apparatus for a mold, characterized in that configured to increase the contact area of the fluid. According to claim 1, wherein the movable mold (5) is inserted into the sleeve 2 to form a cooling jacket 301 as long as the moving distance of the mold (5) so that the cooling action in the stroke of the mold (5) Cooling apparatus of the mold, characterized in that the configuration. According to claim 1, Cooling device for a mold, characterized in that the local high temperature portion of the core (1) is installed in a direct manner by installing the cooling jacket (302) to achieve local cooling.