JPH0235459Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a plastic molded product take-out device for taking out a plastic molded product from an opened mold.

(Prior Art) Conventionally, there is a device described in Japanese Utility Model Publication No. 47-38612 as a device that enters between opened molds and takes out a molded product. This device has a holder that can move forward and backward between the molds via an operating mechanism. The holder body is provided with a notch into which a spool is inserted when suctioning a molded product, and an elastic rubber sheet affixed to the surface of the main body facing the molded product.

The holder main body and the vacuum generator are connected by a flexible hose.

(Problem that the invention aims to solve) However, the conventional take-out device has a complicated structure because the box-shaped holder body is provided with a dedicated spool release notch in addition to the suction hole. There is a problem.

Furthermore, since the suction hole must be provided in a location other than the notch, the opening area of the suction hole becomes small. Therefore, there is a drawback that a sufficient opening area cannot be secured to obtain a predetermined suction force.

Further, the hose is not attached to the arm of the actuation mechanism, and therefore, when the molded product is taken out, the portion of the hose near the mold and the molded product is bent. Therefore, the hose becomes a nuisance, restricts the movement of the attached device, and has the disadvantage that the hose is easily damaged.

In view of the above-mentioned problems, the present invention aims to provide a device for taking out plastic molded products that has a simple structure, can obtain a predetermined suction force, and is less likely to restrict the movement of attached devices or damage the hose. purpose.

(Means for solving the problem) The technical means taken by the present invention to achieve the above object are as follows.

A device for taking out a plastic molded product, which is equipped with a plate-shaped suction pad 7 for vacuuming made of a soft elastic material at the tip of the take-out arm 8, and the molded product 3 is sucked by the suction pad 7 and taken out from the mold 1. , the take-out arm 8 has a band-like shape, and the suction pad 7 has a large-diameter suction hole 10 penetratingly formed therein, which opens approximately at the center of the surface 9 facing the molded product 3;
The surface 7b of the suction pad 7 opposite to the molded product 3 is fixed to a substrate 11, and the substrate 11 is also fixed to the take-out arm 8, and the substrate 11 has a through hole 12 communicating with the suction hole 10. One end of a hose 13 is connected to the through hole 12, and the other end is connected to the vacuum generator side, and the hose 13 is attached to the take-out arm 8.

(Function) When taking out the molded product 3, a suction pad 7 is inserted between the opened molds 1 and 2 via the take-out arm 8.
is advanced, and the contact surface 9 of this suction pad 7 is brought into contact with the bottom 4 of the molded product. Since the suction pad 7 is made of a soft elastic material, the abutment surface 9 is deformed according to the shape of the uneven portion 18 of the bottom portion 4, and fits well, forming a seal portion 16 that seals the uneven portion 18 of the bottom portion 4 around the suction hole 10. is formed, and the suction hole 10 is sealed from the outside air. Then, the suction hole 10 is evacuated by a vacuum generator through the hose 13, so that the molded product 3 is attracted to the suction pad 7 and taken out from the fixed mold 1.

(Example) Embodiments of the present invention will be described in detail with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention, in which 1 is a fixed mold and 2 is a movable mold. This movable mold 2 is moved backward, and both molds 1 and 2 are shown in an open state.

3 is a plastic molded product, which is molded into the desired shape by the molds 1 and 2;
It is left on the side after mold release, and on the bottom 4 there is a quality indication 5 (e.g. mark, part number, MADE IN
JAPAN, etc.) is engraved, and a spool 4a is protruded from the center of the bottom 4, and the bottom 4 has an uneven portion 1.
It has 8.

Reference numeral 6 denotes a take-out device, in which a take-out arm 8 having a suction pad 7 for sucking the molded product 3 by vacuuming is provided between the fixed mold 1 and the movable mold 2 so as to be movable forward and backward. The suction pad 7 is a disk-shaped body made of a soft elastic material such as urethane foam rubber, and the surface facing the molded product 3 is a contact surface 9. A large diameter suction hole 10 opening at the center is formed in a penetrating shape.

Reference numeral 11 denotes a substrate, which is fixed to the surface 7b of the suction pad 7 opposite to the molded product 3, and is a disk-shaped body having the same diameter as the suction pad 7. A through hole 12 communicating with the suction hole 10 is provided in the center of the substrate 11.
is provided.

The take-out arm 8 has a strip-like shape, and the substrate 11 is fixed to the tip thereof. 8a
is a through hole formed in the take-out arm 8 so as to communicate with the through hole 12 of the substrate 11. The base end of the take-out arm 8 is attached to an automatic take-out machine (not shown),
The suction pad 7 is placed on the bottom 4 of the item 3 by moving the take-out arm 8 back and forth in the direction of arrow A by the operation of the take-out machine.

Reference numeral 13 denotes a hose, one end of which is connected to a joint 14 fitted into the extraction arm 8 and the through holes 12, 8a of the board 11.
The other end is connected to a vacuum generator or the like on the automatic extraction machine side. This hose 13 is attached to the take-out arm 8.

To take out the molded product 3, a suction pad 7 is placed between the opened molds 1 and 2 via a take-out arm 8, and the contact surface 9 of the suction pad 7 touches the bottom 4 of the molded product 3. is brought into contact with. At this time, the spool 4a is located within the suction hole 10. The contact surface 9 is deformed according to the uneven shape of the contact surface 15 of the bottom portion 4, so that a seal portion 16 is formed on the contact surface 9, and the suction hole 10 is sealed from the outside air. . Here, the suction hole 10 is evacuated by a vacuum generator through the hose 13, so that the molded product 3 is attracted to the suction pad 7 and taken out from the fixed mold 2.

Note that the shape and size of the suction pad 7 are not limited to those in this embodiment, but are appropriately determined to correspond to the uneven shape of the bottom 4 of the molded product 3 and to optimize the suction state. .

(Effect of the invention) In the present invention, the substrate 11 and the plate-shaped suction pad 7 are fixed to the strip-shaped take-out arm 8, and the suction pad 7
Since the suction hole 10 that opens approximately in the center of the surface 9 facing the molded product 3 is formed in a penetrating shape, a dedicated spool is installed in the box-shaped holder body in addition to the suction hole, as in the conventional case. There is no need to provide a cutout for escape, which simplifies the structure.

Further, the suction hole 10 has a large opening approximately at the center of the surface 9 facing the molded product. Therefore, even with a low suction pressure, a predetermined large suction force can be obtained.

Further, since the hose 13 is attached to the take-out arm 8, the portion of the hose 13 near the molds 1, 2 and the molded product 3 does not bend when the molded product 3 is taken out. Therefore, the hose 13 does not get in the way, and there is little risk that the movement of the attached device will be restricted or that the hose 13 will be damaged.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a front sectional view and FIG. 2 being a side view. DESCRIPTION OF SYMBOLS 1...Fixed mold, 2...Movable mold, 3...Plastic molded product, 4...Bottom, 4a...Spool, 7...Suction part, 8...Take-out arm, 10
... Suction hole, 11 ... Substrate, 12 ... Through hole.

Claims (1)

[Claims for Utility Model Registration] A plate-shaped vacuum suction pad 7 made of a soft elastic material is provided at the tip of the take-out arm 8, and the molded product 3 is sucked by the suction pad 7 and taken out from the mold 1. In the apparatus for taking out plastic molded products, the take-out arm 8 has a strip-like shape, and the suction pad 7 has a large-diameter suction hole 10 that opens approximately at the center of the surface 9 facing the molded product 3. The surface 7b of the suction pad 7 opposite to the molded product 3 is formed on the substrate 11.
At the same time, this substrate 11 is fixed to the take-out arm 8, a through hole 12 communicating with the suction hole 10 is formed in the substrate 11, and a hose 13 whose other end is connected to the vacuum generator side. A device for taking out plastic molded products, characterized in that one end of the plastic molded product is connected to the through hole 12, and a hose 13 is attached to the removal arm 8.