JPS586610Y2 - Casting pin device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device of a type in which a cast pin is protruded from the front surface of a cast mold that opens and closes in conjunction with a hydraulic cylinder.

Conventionally, in this type of device, the pin generally protrudes in the same direction as the opening/closing direction of the mold, but depending on the product, there is a requirement for the pin to be in a different direction, and if it is Since it is impossible to cast out the pin, the pin is damaged, and the caster is generally machined separately, which causes the inconvenience of laborious work.

The purpose of the present invention is to obtain a device that does not have such inconveniences, and is of the type in which a casting pin 3 is protruded from the front surface of a mold 2 that opens and closes in conjunction with a hydraulic cylinder 1.
The casting pin 3 is configured to be able to freely come out and go in a direction different from the opening/closing direction of the mold 2, and a link mechanism 4 connected to the tail end of the pin 3 and a sliding rod 5 behind it are provided in the mold 2. A coupling 6 is interposed between the cylinder 1 and the mold 2, and the coupling 6 is connected to an inner 6c having an outer 6a on the outer periphery.
The rod 5 is connected to the outer 6a of the coupling 6 at its tail end.

The link mechanism 4 is of a type in which a pair of front and rear links 4a, 4a are supported by a lever-type link 4b in the middle thereof, and a camp ring 6 has a flange 6d on the front surface thereof, and the rod 5 and the 7 langes 6d are supported. They are connected via adjustable bolts 7.

In the illustrated example, the mold 2 is a drawn Chinese mold, but
Needless to say, it is not limited to this.

In the drawings, reference numeral 8 indicates a cavity formed in front of the mold 2 in the closed position, and reference numeral 9 indicates a product to be die-cast inside the cavity.

To explain the operation, when the hydraulic cylinder 1 is retracted, the mold 2 is retracted and opened as shown in the second figure, and the casting pin 3 is also retracted and is in the retracted position.

Next, when giving a forward motion to the cylinder 1, only the pin 3 is pushed by the play 6b of the compulsion ring 6 and protrudes as shown in the third figure. Accordingly, as shown in the fourth figure, the mold 2 is also pushed forward and brought into the closed position, thus preparing the cavity 8 in front of it for pouring molten metal.

Next, when the molding is completed, the cylinder 1 is given a backward movement, and according to this, the play 6b of the compulsion ring 6 is first reduced.
Only the transfer pin 3 moves back and is pulled out to the retracted position 9, and then the mold 2 is also moved to the open position according to the subsequent retreat, in preparation for taking out the product 9. .

Thus, the state returns to the state shown in the second figure and is ready for the next operation.

As described above, according to the present invention, the casting pin 3 is made to protrude in a direction different from the opening/closing direction of the mold 2, and a casting hole can be formed in that direction, and the means for separately machining can be omitted. The operation of the pin 3 uses the same hydraulic cylinder 1 as the operating source of the mold 2, which has the effect of omitting a separate driving source and simplifying the structure and reducing the cost.

[Brief explanation of drawings]

Figure 1 is a cutaway side view of one example of the proposed device, and Figures 2 to 4 are
The figures are enlarged cross-sectional side views of the main parts in each operating state. DESCRIPTION OF SYMBOLS 1...-Hydraulic cylinder, 2... Mold, 3... Cast-out pin, 4... Link mechanism, 5... Sliding rod, 6...
...Kampling, 6a...outer, 6b...play, 6c...inner.

Claims (1)

[Scope of utility model registration request] In a type in which a cast-out pin 3 is protruded from the front surface of a mold 2 that opens and closes in conjunction with a hydraulic cylinder 1, the cast-out pin 3 is constructed so that it can freely protrude and retract in a direction different from the opening and closing direction of the mold 2. A link mechanism 4 connected to the tail end of the pin 3 and a sliding rod 5 behind it are provided in the mold 2, and the cylinder 1
A camp ring 8 is interposed between the mold 2 and the mold 2, and is composed of an outer 6a on the outer periphery and an inner 6c having play 6b in the front-rear direction inside, and the rod 5 is attached to the camp ring at its tail end. A cast-out pin device formed by being connected to the outer 6a of No.6.