KR102442072B1 - A lift and cooling device for a vacuum forming machine - Google Patents

Abstract

The present invention suggests a device with an index jig that can be more conveniently replaced. A lift and cooling device for a vacuum-forming apparatus of the present invention comprises: an index jig (50) configured to receive a high-temperature vacuum-forming product; and a frame configured to support the index jig. The index jig (50) includes: an upper plate (50A) on which a product is to be directly placed; and a lower plate (50B) which detachably supports the upper plate. Here, a cooling water pipe (59) for cooling is installed on the lower plate to promote efficient cooling. The upper plate (50A) and the lower plate (50B) are provided with a plurality of positioning members (52, 54) in corresponding positions, respectively. A conical coupling groove (52a) is molded on a bottom surface of the positioning member (52) of the upper plate, and a conical coupling protrusion (54a) is molded on an upper portion of the positioning member (54) of the lower plate. Accordingly, the upper plate (50A) is coupled to the lower plate (50B) in a positionable manner by the coupling of the coupling groove (52a) and the coupling protrusion (54a).

Description

Lift and cooling device for a vacuum forming machine {A lift and cooling device for a vacuum forming machine}

The present invention relates to a lifting and cooling device for a vacuum forming machine. of the lift and cooling device.

The vacuum forming apparatus is a forming apparatus for producing, for example, an inner case of a refrigerator. Such a vacuum forming apparatus can be said to make a product of a desired shape by heating a synthetic resin sheet and then making it adhere to a mold using a vacuum in a chamber. For such vacuum molding, a vacuum is formed in a space consisting of a chamber and a mold, and a synthetic resin sheet supplied at a high temperature inside the chamber is molded into a shape corresponding to the mold using a mold.

Products produced through such vacuum forming are generally fed through a jig after being taken out of the chamber and mold. However, according to the conventional vacuum forming machine, when a product defect occurs, it is cumbersome to remove the defective product from the jig and reduces productivity. And, such a jig is also unsatisfactory in terms of effectively cooling the product taken out after being vacuum-formed.

In addition, since this jig is an exclusive jig for a specific model (refrigerator model), if the production model is changed in the production line, this jig must also be exchanged. However, the conventional jig has a tremendous weight due to its size corresponding to the size of the refrigerator. Accordingly, the inconvenience of performing the exchange operation using a separate device is also pointed out. For example, it can be said that the above exchange work would be easier if the workers could lift it manually.
[Prior Patent Literature] Registered Patent Publication No. 10-1992489

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cooling jig capable of effectively cooling the vacuum-formed inner case of a high-temperature refrigerator when it is taken out.

Another object of the present invention is to allow an operator to easily exchange a cooling jig for placing a product taken out of a chamber and a mold of a vacuum forming machine.

Another object of the present invention is to propose a lift device for vacuum forming that can quickly remove products taken out of a chamber and a mold from a product line of an inner case of a refrigerator when the product is defective.

The lift and cooling device of the vacuum forming machine includes an index jig for receiving a high-temperature vacuum-formed product, and a frame for supporting the index jig. And the index jig is composed of an upper plate for directly placing the product, and a lower plate for detachably supporting the upper plate. Here, a cooling water pipe for cooling is installed on the lower plate to achieve efficient cooling.

And the upper plate and the lower plate are provided with a plurality of positioning members at corresponding positions, respectively. A conical coupling groove is formed on the bottom surface of the upper plate positioning member, and a conical coupling protrusion is molded on the upper portion of the lower plate positioning member to be coupled to each other so that the upper plate is positionably coupled to the lower plate.

And, the frame is preferably composed of a main frame and a jig frame elevating by the first cylinder installed on the main frame. The jig support part for supporting the index jig is configured to be elevating and lowering by the second cylinder supported by the jig frame.

According to another embodiment of the present invention, it is installed on the upper plate may further include a side wall for cooling the product. Here, the side wall is configured to be movable at regular intervals inward and outward on the upper plate, and may be fixed at a predetermined position.

According to the device of the present invention having the above structure, the index jig is configured to be separated into an upper plate and a lower plate. Therefore, when the index jig needs to be replaced according to the specifications of the inner case of the refrigerator, only the relatively light top plate needs to be replaced, which can be said to have the advantage that the user can replace it conveniently.

And according to the present invention, since the cooling pipe is built in the lower plate of the index jig, it is also expected that the cooling of the high-temperature vacuum-formed product can proceed efficiently. Moreover, the fact that the side wall for cooling can be movably installed on the upper part of the upper plate and fixed at a predetermined position can be used, which is also expected to enable the cooling of high-temperature products to be performed more efficiently.

According to the present invention, a conical engagement groove is formed on the bottom surface of the upper plate positioning member, and a conical engagement projection is formed on the upper portion of the lower plate positioning member. It can be said that these coupling grooves and coupling protrusions provide the convenience of being coupled while autonomously positioning the upper and lower plates at precise positions.

In addition, the frame of the present invention is composed of a main frame and a jig frame elevating by the first cylinder installed on the main frame. Here, the jig support part for supporting the index jig can be raised and lowered by the second cylinder supported by the jig frame. Therefore, since the index jig can actually be raised and lowered by two cylinders, it can ultimately descend to a lower position downward, which means that the defective product can be removed more easily and conveniently to the outside.

1 is an exemplary perspective view of a lift and cooling device of the present invention;
Figure 2 is a perspective view illustrating an exploded state of the cooling jig installed in the device of the present invention.
3 is a partial main cross-sectional view for coupling the cooling jig of the present invention.
Figure 4 is a perspective view seen from the bottom of the cooling jig of the present invention.

Next, based on the embodiment shown in the drawings, the present invention will be described in more detail.

The device of the present invention has a function of receiving the refrigerator inner case in a high temperature state that is vacuum-formed and taken out from the inside of the chamber and transporting it while cooling it or, in the case of a defective product, lowering it to the outside to take it out. And the index jig used in the device of the present invention is configured so that only the upper plate can be exchanged by separating the upper plate and the lower part, so that the operator can directly exchange the upper plate.

As shown in Figure 1, the present invention device, the base frame 10 supported on the floor, and a jig frame that elevates by a first cylinder 18 consisting of a hydraulic cylinder installed on the base frame (10) (20) is included. The basic frame 10 may be composed of, for example, a horizontal portion 12a and a vertical portion 12b, and supports components to be described later with respect to the ground.

The first cylinder 18 is supported on the basic frame 10, for example, is supported on the horizontal portion 12a in the illustrated embodiment. And the piston of the first cylinder 18 elevates the jig frame 20 . For example, the jig frame 20 having a L-shape is to substantially support the index jig 50 , and in the illustrated embodiment, the index jig 50 is supported through the jig support part 30 . A second cylinder 22 which is a hydraulic cylinder is interposed between the jig support part 30 and the jig frame 20 .

Since the piston of the second cylinder 22 is connected to the jig support part 30 , the jig support part 30 may move up and down in a predetermined section by the second cylinder 22 . Therefore, according to the device of the present invention, it can be seen that the index jig 50 is configured to be movable up and down in a certain section from the upper part by the second cylinder 22 and to be further lowered downward by the first cylinder 18. . Here, the raising and lowering of the index jig 50 by the second cylinder 22 can be said to be for a dual transfer. In addition, the first cylinder 18 raises and lowers the index jig 50 to a lower position so that defective products can be taken out of the line and can be referred to as an emergency cylinder.

Next, referring to FIGS. 2 to 4 , the index jig 50 for receiving and supporting the vacuum-formed high-temperature refrigerator inner case and cooling it will be described in more detail. As shown in FIG. 2 , the index jig 50 includes an upper plate 50A and a lower plate 50B. Since the upper plate 50A and the lower plate 50B are detachable from each other, when the upper plate 50A and the lower plate 50B are configured in this way, according to the specifications of the product, when changing the jig 50, relatively very light By changing only the top plate 50A, this can be dealt with, so it can be said that it is quite practical.

In this way, when the upper plate 50A is designed to be detachable from the lower plate, it is preferable that the upper plate 50A be placed on the lower plate 50B so that the upper plate 50A can be accurately positioned by itself. 3, the upper plate 50A and the lower plate 50B have a plurality of positioning members 52 and 54 at the same position, respectively. In the illustrated embodiment, the positioning member 52 of the upper plate 50A has a conical engagement groove 52a formed on its bottom surface, and the positioning member 54 of the lower plate 50B has a cone-shaped engagement on the top. The projection 54a is molded.

Each of these positioning members 52 and 54 is fixed to the upper plate 50A and the lower plate 50B using a plurality of bolts, respectively, as shown. When such positioning members 52 and 54 are provided, when the upper plate 50A is coupled to correspond to the lower plate 50B, the coupling grooves 52a of the plurality of upper plate positioning members 52 and the lower plate positioning member The coupling protrusions 54a of 54 may be accurately coupled to each other. That is, since the conical coupling grooves 52a and coupling protrusions 54a corresponding to each other are coupled to each other while guiding the corresponding positions, the upper plate 50A is coupled to the lower plate B at the correct position.

Here, the upper plate 50A can be said to directly support a high-temperature product, and the lower plate 50B is in direct contact with the upper plate 50A. As will be described later, the lower plate 50B has a built-in cooling device, and as shown in FIG. 2 , the upper plate 50A has a side wall 56 for cooling the product. The side wall 56 is, for example, to perform cooling more efficiently by contacting one side of the hot product.

These side walls 56 are installed so as to be movable inward and outward, and to be fixed at a predetermined position. For example, a support block 58a fixed to the upper plate 50A is fixedly installed inside the side wall 56 . In addition, a screw bar 58b is installed on the inner surface of the side wall 56 in a state that penetrates the support block 58a.

In this way, the screw bar 58b supported on the inside of the side wall 56 is installed in a state penetrating the support block 58a, and fixed using a plurality of nuts 58c on the inside and outside of the support block 58a. , the sidewall 56 may be positioned. The position fixing structure of the side wall 56 having such a configuration is exemplary, and it is natural for those skilled in the art that various modifications will be possible.

And the lower plate 50B of the present invention is provided with a water cooling cooling device to effectively cool the product. As shown in FIG. 4, this water-cooled cooling device is substantially composed of a cooling water pipe 59 circulating inside the lower plate 50B. It goes without saying that various changes in the internal arrangement or shape of the coolant pipe 59 are possible, and the cooling of the lower plate 59B by the coolant pipe 59 is transmitted to the upper plate 50A and the side wall 56 and is in a high temperature state. It is expected to be able to cool the products of

The characteristic structure of the present invention described above may be summarized as follows. First, the index jig 50 of the present invention is composed of an upper plate 50A and a lower plate 50B, and a water-cooled cooling device is installed on the lower plate 50B to maximize cooling efficiency of high-temperature products. In addition, the basic frame 10 and the jig frame 20 are configured to be lifted and lowered by the first cylinder and the second cylinder, respectively, so that defective products can be separated from the line more conveniently.

It is natural that various modifications are possible for those skilled in the art within the scope of the basic technical idea of the present invention. And after registration, it can be said that it is natural for the purpose of the provisions of the Patent Act that the protection scope of the present invention should be interpreted based on the description of the claims.

10 ..... mainframe
18 ..... Cylinder 1
20 ..... jig frame
22 ..... 2nd cylinder
30 ..... jig support
52 ..... Top plate positioning member
54 ..... Lower plate positioning member
59 ..... coolant pipe

Claims (4)

an index jig 50 for receiving a high-temperature vacuum-formed product, and a frame for supporting the index jig 50;
The index jig 50 includes an upper plate 50A for directly placing the product, and a lower plate 50B for detachably supporting the upper plate 50A;
A cooling water pipe 59 for cooling is installed on the lower plate 50B;
The frame is composed of a main frame (10) and a jig frame (20) elevating by a first cylinder (18) installed on the main frame (10);
The jig support part 30 for supporting the index jig 50 is a lift and cooling device for a vacuum forming machine, characterized in that it can be raised and lowered by the second cylinder 22 supported on the jig frame 20 .
The method of claim 1,
The upper plate (50A) and the lower plate (50B) is provided with a plurality of positioning members (52, 54) at corresponding positions, respectively;
A conical coupling groove 52a is formed on the bottom surface of the upper plate positioning member 52, and a conical coupling protrusion 54a is formed on the upper portion of the lower plate positioning member 54 and coupled to each other, thereby forming the upper plate 50A. A lifting and cooling device of a vacuum forming machine that is positionally coupled to the silver lower plate (50B).
delete 3. The method according to claim 1 or 2,
It is installed on the upper plate and is configured to further include a side wall 56 for cooling the product,
The side wall 56 is configured to be movable at regular intervals inward and outward on the upper plate 50A, and is a lift and cooling device for a vacuum forming machine that can be fixed at a predetermined position.

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