JPS5935328Y2 - casting mold - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to casting molds such as die casting, and in particular -
The present invention relates to a casting mold for casting a box-shaped body whose side upper surface is covered.

Conventionally, it has not been possible to cast a box-shaped body whose top surface is covered.

SUMMARY OF THE INVENTION The object of the present invention is to obtain a casting mold which has a simple structure and can be easily manufactured, and which can cast a box-shaped body whose upper surface is partially covered.

Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in the drawings.

In the embodiments shown in FIGS. 1 to 5, 1 is a fixed mold;
This fixed mold 1 has a recess 2 that becomes a part of the cavity,
Recesses 6, 7° 8 are formed into which first and second cores/protruding pieces 3, 4, 5, which will be described later, enter during mold clamping.

Reference numerals 9 and 10 indicate inclined pins fixed to the fixed mold 1, and these inclined pins 9 and 10 correspond to the inclined side walls 6a and 7a of the recess 6°7 into which the first and second cores 3 and 4 are inserted. The same is slanted.

The first core 3 is inserted into the inclined pin 9 and enters the recess 6 of the fixed mold 1 during mold clamping.

The second core 4 is inserted into the inclined pin 10 and enters the recess 7 of the fixed mold 1 during mold clamping.

The protrusion piece 5 is a protrusion 1 that enters the recess 8 of the fixed mold 1 when the mold is clamped and forms a part of the cavity 11 around it.
2 is formed, and the protrusion 12 is formed in such a shape that it can be removed from the product 11A by pushing down and rotating the product 11A when the mold is opened.

Reference numeral 13 denotes a movable mold which is clamped to the fixed mold 1. The protruding piece 5 is integrally formed on the movable mold 13, and the first and second cores are connected to the inclined pins 9, The guide rails 3a, 4a of the first and second cores 3, 4 are arranged so that the first and second cores 3, 4 can be slid along the guide rails 3a, 4a as shown in FIGS. 3 and 4.
Guide portions 14, 15 are formed to engage with.

Reference numeral 16 denotes a runner for supplying the molten metal formed in the fixed mold 1.

17 is a push rod for pushing out the product 11A.

In the above structure, when the movable mold 13 is clamped to the fixed mold 1, the result will be as shown in FIG. 4.5 and the movable mold 13 can form a cavity 11 in which a box-shaped body with one side upper surface covered can be cast.

Next, the molten metal is forced into the cavity 11 through the runner 16 and solidified.

Open the mold. In response to the rise of the movable mold 13 during mold opening, the protruding piece 5 rises in the same manner as the movable mold 13, but the first
The second cores 3, 4 slide outward along the inclined pins 9, 10 and are removed from the product 11A.

Thereafter, when the product 11A is pushed by the pushing rod 17, the product 11A rotates in the direction of the arrow x and comes off from the protrusion 12 of the protrusion piece 5.

As is clear from the above description, according to the present invention, it is possible to cast a box-shaped body with the upper surface of the bulge covered, which was previously considered impossible.

In addition, since there is no need to use a special core-type moving mechanism, the structure is relatively simple and has excellent practical advantages such as being inexpensive.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing one embodiment of the present invention, and Fig. 2 is an explanatory diagram showing an embodiment of the present invention.
An explanatory diagram showing the state in the middle of opening the mold, Figure 3 is a sectional view taken along the line ■-■ in Figure 2, Figure 4 is IV-IV in Figure 2.
A cross-sectional view taken along the line, FIG. 5 is a perspective view of the product. 1...Fixed mold, 2...Concavity, 3...
...First core, 4...Second core, 5.
...Protruding piece, 6,7゜8...Concave part, 9,
10... Inclined pin, 11A... Product,
11... Cavity, 12... Protrusion, 13... Movable mold, 16... Runway,
17... Push-out rod.

Claims (1)

[Scope of utility model registration request] 1. A fixed mold in which a recessed portion is formed as a part of the cavity; a first core that is engaged with an inclined pin fixed to the fixed mold and can be moved in a direction away from the product when the mold is opened; a second core that is engaged with a tilt pin fixed to the fixed mold so as to face in a direction opposite to the tilt pin and can move in a direction away from the product when the mold is opened; and a second core of the child. a protruding piece located at a lower part of the core, the tip of which enters into the four parts to form a part of a cavity around the periphery, and slides the first and second cores along the inclined pins, respectively; a movable mold which is clamped to the fixed mold which can be used as a mold, and the tip of the protruding piece is formed into a curved shape such that it can be removed by rotating the product molded with a capitei. Mold.