JPS6327106B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Field of Industrial Application The present invention relates to a water-cooled mold used for casting and the like.

(2) Conventional technology Conventionally, in this type of mold, multiple cooling water holes were drilled in the mold, and parts for supply and drainage were attached to each cooling water hole, and each cooling water hole was connected to a water supply pipe and drainage through the parts. connected to each tube.

(3) Problems to be Solved by the Invention However, in the above-mentioned mold, each water supply and drainage part protrudes from the outside surface of the mold and occupies a considerable amount of space. Moreover, there is a problem that the hole diameter is limited, and therefore the cooling efficiency of the mold is poor.

In addition, since parts for supply and drainage are required for each cooling water hole, the number of parts is large, and in addition, these parts for water supply and drainage must be connected to the water supply pipes and drain pipes one by one, making piping work difficult. Therefore, it is inevitable that the cost of the mold will increase as the number of manufacturing steps increases. Another problem is that the arrangement of water supply pipes and drain pipes on the outside of the mold is complicated, making maintenance difficult.

An object of the present invention is to provide the water-cooled mold which can solve the various problems of the conventional art.

B. Structure of the Invention (1) Means for Solving Problems The present invention includes a molding block having a cavity molding surface on the front surface, and a cooling block that is in close contact with the entire back surface of the molding block, and the molding block has a , a plurality of cooling water holes are formed in the back surface of the cooling block, and the cooling block has a water supply system and a drainage system, and a water channel extending over the entirety of the cooling block along the surface in close contact with the molding block; A plurality of communication holes are formed opposite to each of the cooling water holes to communicate one side of the water supply and drainage system with each of the cooling water holes, and the plurality of communication holes are loosely inserted into each of the cooling water holes and the communication holes opposite thereto. A conduit is plug-connected to the cooling block to communicate with the other of the water supply and drainage systems.

(2) Effect When cooling water is supplied to the water supply system of the waterway, the cooling water flows through the conduit, the cooling water hole, and the drainage system and is discharged to the outside. The cooling block is cooled while the cooling water flows through the water supply and drainage systems of the canals.
As a result, the molded block that is in close contact with the cooling block is cooled from its entire back surface. Also, the molded block is cooled from inside by the cooling water flowing through the cooling water holes.

(3) Example As shown in FIGS. 1 and 2, the water-cooled mold 1 includes a first molding block ₂₁ having a cavity forming surface _a1 on the front surface, and a molding block 21 having a cavity forming surface _a1 on the front surface thereof. A second molding block 2 ₂ is arranged and has a cavity molding surface a ₂ on the front surface, and first and second cooling blocks 3 ₁ and ₃ are in close contact with the entire back surfaces of the first and second molding blocks 2 ₁ and 2 2 . ₂ .

Since both molding blocks 2 ₁ , 2 ₂ and both cooling blocks 3 ₁ , 3 ₂ have substantially the same structure, the first molding and cooling block 2 ₁ , _{3 1 will} be explained. A water channel 4 is bored along the entire surface 3a of the molded block ₂₁ . The water channel 4 consists of a water supply system 4a and a drainage system 4b, and the water supply system 4a has seven first vertical holes opening at both ends on the upper and lower surfaces of the first cooling block ₃₁ , as shown in FIG. 5 ₁ and those first
The first cooling block ₃₁ has five first horizontal holes _{61 which are opened at both ends on both sides of the first cooling block 31 so as to intersect with the vertical holes 51 ,} and the drainage system 4b is parallel to each of the first vertical holes ₅₁ . It consists of a second vertical hole 5 ₂ and a second horizontal hole 6 ₂ parallel to each first horizontal hole 6 ₁ .

Each intersection c ₁ of the first vertical hole 5 ₁ and the first horizontal hole 6 ₁ in the water supply system 4a, and each intersection of the second vertical hole 5 ₂ and the second horizontal hole 6 ₂ in the drainage system 4b facing thereto It communicates with section _c2 through a through hole 7.

A water supply hole 8 communicates with the first horizontal hole 6 ₁ at the bottom of the water supply system 4 a, and a drainage dedicated horizontal hole 9 provided above the second horizontal hole 6 ₂ at the top of the drainage system 4 b communicates with the water supply hole 8 . Holes 10 are in communication.

In the wall of the first cooling block 3 ₁ on the side of the first molded block 2 ₁ , communication holes 11 that are coaxial with each of the through holes 7 and facing each of the cooling water holes 12 are bored, and each of the communication holes 11 This allows the second vertical hole ₅₂ of the drainage system 4b to communicate with the cooling water hole 12 of the first molded block ₂₁ . These cooling water holes 12 are distributed in the first forming block ₂₁ so as to uniformly cool the cast body within the cavity Ca.

Each communication hole 11 and the cooling water hole 1 communicating with it
A conduit 13 is loosely inserted into the cooling block 2, and one end of the conduit 13 is fitted into the through hole 7 to be plugged and connected to the first cooling block ₃₁ . The other end of the conduit 13 is located near the deepest part of the cooling water hole 12 . This conduit 13
The cooling water hole 12 and the first vertical hole 5 of the water supply system 4a
₁ is in communication.

In the figure, 14 is an O-ring and the first molded block 2 ₁
and the first cooling block ₃₁ , and 15 closes each opening of the first vertical and horizontal holes ₅₁ , ₆₁ and the second vertical and horizontal holes ₅₂ , ₆₂ with plugs. .

In the above configuration, when cooling water is supplied to the water supply hole 8, the cooled water flows through each of the first vertical and horizontal holes 5 1 and 6 1 of the water supply system 4a, and the cooling water flows through each of the first vertical and horizontal holes 5 ₁ and 6 ₁ as shown by the arrows in FIG. Conduit 13, its conduit 13 and cooling water hole 1
The water flows through the second vertical and horizontal holes 5 ₂ and 6 ₂ of the drainage system 4b, the communication hole 11, and is discharged to the outside from the drainage hole 10 via the horizontal hole 9 exclusively for drainage. During this time, the first and second cooling blocks 3 ₁ and 3 ₂ are cooled by the cooling water, and as a result, the first and second forming blocks 2
₁ and 2 ₂ are cooled from their entire back surface. Furthermore, the first and second molded blocks 2 ₁ and 2 ₂ are cooled from inside by the cooling water flowing through each cooling water hole 12 .

As a result, the first and second molded blocks 2 ₁ ,
2 ₂ , it is possible to uniformly and rapidly cool the entire cast body to improve its quality.

Note that the water supply system 4a of the waterway 4 is replaced by the drainage system 4b.
Additionally, the drainage system 4b may be used as the water supply system 4a. Further, the present invention can be applied to other than casting molds.

C. Effects of the Invention According to the present invention, a cooling block having a water channel having a water supply and drainage system is used, which is brought into close contact with the entire back surface of a molded block, and the water channel and each cooling water hole of the molded block are connected. Since communication is achieved through multiple communication holes drilled in the cooling block and multiple conduits loosely inserted into these communication holes, restrictions on the number of cooling water holes and their diameters are greatly relaxed, allowing cooling of the molded block. An appropriate number of water holes can be provided at appropriate positions.

Moreover, the water supply and drainage components are only one cooling block and a plurality of conduits, and each cooling water hole, water channel, and each communication hole can be easily formed by drilling into the molded block and cooling block. Since each conduit is plugged into the cooling block, it is possible to simplify the piping structure, improve piping workability, and reduce mold manufacturing costs.Furthermore, if the cooling block is removed from the molding block, Since the conduit can be removed from the molding block together with the cooling block, maintenance of the piping can be easily carried out.

In addition, the molded block is cooled from the entire back side by the cooling block and at the same time cooled by the cooling water flowing from inside the molded block through each cooling water hole, which greatly improves the cooling efficiency of the molded block and speeds up the cooling of the molded product. Productivity can be increased.
In this case, by arranging the water supply system of the waterway close to the molded block and communicating the waterway between the cooling water hole and the conduit with the water supply system, the low temperature cooling water existing in the water supply system can be used. As a result, the molded block can be cooled more efficiently.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is a sectional view taken along the line of FIG. 1, and FIG.
The figure is Fig. 1 - Line cross-sectional view, Fig. 4 is Fig. 2 -
It is a partial sectional view when cut along a line. a ₁ , a ₂ ... cavity forming surface, 1 ... mold, 2 ₁ ,
2 ₂ ... first and second molded blocks, 3 ₁ , 3 ₂ ... first,
Second cooling block, 3a...adhesion surface, 4...channel, 4
a...Water supply system, 4b...Drainage system, 11...Communication hole,
12...Cooling water hole, 13...Conduit.

Claims (1)

[Claims] 1. A molding block having a cavity molding surface on the front surface, and a cooling block that is in close contact with the entire back surface of the molding block, and the molding block is provided with a plurality of cooling water holes opening on the back surface of the molding block. The block has a water supply system and a drainage system, and a water channel that runs along the entire surface along the surface in close contact with the molded block, and one of the water supply and drainage systems facing each cooling water hole of the molded block. A plurality of communication holes are drilled to communicate the cooling water holes,
A water-cooled mold characterized in that a conduit loosely inserted into each cooling water hole and the communication hole opposite thereto is inserted and connected to the cooling block so as to communicate with the other of the water supply and drainage systems.