KR20150003395U - A Core Unit for Extraction of double Injection Form - Google Patents

Abstract

The present invention is configured to include a first lower core and a second lower core, wherein the first lower core is configured to support the lower end portion of the double yarn product, and the second lower core is configured to support the inside of the double yarn product, A rubber urethane is provided between the second lower core and the first lower core to lower the first lower core at the time of separating the upper core so that the rubber urethane is pressed between the double bonded article and the first and second lower cores And the double bottom product is easily separated from the first lower core and the second lower core by the stripper plate by releasing the pressing operation of the rubber urethane by raising the first lower core and then releasing the pressing operation of the rubber urethane. To a core apparatus for taking out a double yarn,
The core apparatus for a dual yarn take-out unit for making and delivering a first yarn product and a second yarn product between an upper core and a lower core, the core apparatus comprising a cup- An upper core 10 for guiding the second article 60 to be formed on the lower and side surfaces thereof; A first lower core (20) for wrapping the bottom surfaces of the first and second blanks (50, 60) and guiding the bottom of the first blanks (50) and the second blanks (60) to form a blanket; A second lower core (30) which surrounds a lower edge of the first article (50) and guides the first article (50) to be formed on the upper and side surfaces thereof; The second lower core 30 is inserted into the second space b of the second lower core 30 and the second lower core 30 is compressed while being lowered, A rubber urethane 40 inserted between the first and second articles 50 to guide the first article 50 to be fixed without being moved; A first collection part (50) installed on the upper part of the lower core (30); A second article of manufacture (60) installed on top of the first article of manufacture (50); The second yarn introduction part 60 is installed between the first lower core 20 and the second yarn introduction part 60 and separated from the upper core 10 to form the first yarn introduction part 50 together with the first yarn introduction part 50, And a stripper plate 70 for separating the first and second bamboo articles 50 and 60 from the first and second lower cores 20 and 30.

Description

[0001] The present invention relates to a core unit for extracting double injections,

In particular, the present invention relates to a core apparatus for taking out a double yarn, and more particularly to a core apparatus for taking out a double yarn, The rubber core is provided between the second lower core and the first lower core so that the first lower core is lowered when the upper core is separated from the second lower core, The double bottom product is supported by pressing the rubber urethane between the second bottom core and then the first bottom core is raised again to release the pressing action of the rubber urethane so that the double- And the second lower core are separated from each other.

Generally, an injection mold is composed of a fixed plate and a movable plate, and a high temperature liquid resin material is injected into a cavity formed between the fixed plate and the movable mold plate, and the injected liquid resin material is cooled to form a product .

That is, after the injection mold is fixedly installed in the injection molding machine, the liquid resin material in the liquid state formed by heating and melting the thermoplastic resin or the thermosetting plastic raw material introduced into the injection molding machine to a predetermined temperature is introduced into the fixed plate of the injection mold, Into the cavity between them.

Then, when the filled liquid resin material is solidified and cured after a predetermined time to form the product, the movable mold plate of the injection mold is moved to open the mold, .

At this time, when an under-cut such as a thread, a hole, a groove, or an inclined portion is formed on the molded article, the molded article in the cavity can not be taken out only by moving the movable mold of the injection mold, Core should be installed.

In addition, the double injection molding apparatus is a device for molding a composite molding with two kinds of materials having different properties or two kinds of materials having different colors. In recent years, in order to meet various consumers' purchasing desires, Automobile parts, home appliance parts, office equipment parts, and portable equipment parts.

For example, as to the operation state of the composite molding by the double injection apparatus, the first molding material is injected into the primary mold to mold the primary molding, and then the movable mold of the primary mold is rotated 180 degrees horizontally The second molding material is injected into the space between the cavity of the secondary mold and the primary molded product to form the secondary molded product.

1 to 3 and comprises a top core 1, a bottom core 2 and a stripper plate 3, and the top core 1 and the bottom core 2 2). The primary article (5) is maintained in a state of being fastened to the lower core (2) by using an undercut (4).

In this case, the upper core 1 is first separated and then the stripper plate 3 is rotated or lifted to separate the product from the lower core 2.

At this time, in the conventional structure, the undercuts 4 must necessarily be formed on the lower core 2, and the primary articles 5 must be formed on the undercuts 4.

The article can be kept fixed to the lower core 2 when the upper core 1 is lifted and then the stripper plate 3 can be operated to finally separate the article from the lower core 2 will be.

4 and 5, when the upper core 1 is lifted up, the articles 5, 6 are lifted at the same time, so that the upper and lower cores 1, There is a problem in that it becomes impossible to separate it from the lower core 2.

According to one aspect of the present invention, there is provided a method for manufacturing a double bottom product comprising a first lower core and a second lower core, wherein the first lower core is configured to support a lower end portion of the double- And a rubber urethane is provided between the second lower core and the first lower core to lower the first lower core at the time of separating the upper core so as to support the inside of the second lower core and the first lower core, The double bottom product is easily supported by the stripper plate by releasing the pressing action of the rubber urethane by supporting the double bottom product by pressing the rubber urethane between the upper and lower cores, 2 lower core.

As means for achieving the above object,

The present invention relates to a core apparatus for taking out and delivering a first article and a second article between an upper core and a lower core and having a cup shape and an upper rim of the second articles 60, A top core 10 wrapping the surface and guiding the second article 60 to be formed on the bottom and side surfaces thereof; A first lower core (20) for wrapping the bottom surfaces of the first and second blanks (50, 60) and guiding the bottom of the first blanks (50) and the second blanks (60) to form a blanket; A second lower core (30) which surrounds a lower edge of the first article (50) and guides the first article (50) to be formed on the upper and side surfaces thereof; The second lower core 30 is inserted into the second space b of the second lower core 30 and the second lower core 30 is compressed while being lowered, A rubber urethane 40 inserted between the first and second articles 50 to guide the first article 50 to be fixed without being moved; A first collection part (50) installed on the upper part of the lower core (30); A second article of manufacture (60) installed on top of the first article of manufacture (50); The second yarn introduction part 60 is installed between the first lower core 20 and the second yarn introduction part 60 and separated from the upper core 10 to form the first yarn introduction part 50 together with the first yarn introduction part 50, And a stripper plate 70 for separating the first and second bamboo articles 50 and 60 from the first and second lower cores 20 and 30.

The second lower core 30 includes an upper plate 31, a middle plate 32, and a lower plate 33. The second lower core 30 passes through the first lower core 20 in an I- A first space part a is formed at a distance from the upper part of the first lower core 20 and a second space part b is formed between the first space part a and the first article part 50 .

As described above, the present invention is configured to include a first lower core and a second lower core, wherein the first lower core is configured to support a lower end portion of the double yarn article, and the second lower core is configured to support the inside of the double yarn article A rubber urethane is provided between the second lower core and the first lower core to lower the first lower core when separating the upper core so as to sandwich the rubber article between the second lower core and the second lower core with a rubber urethane So that the double bottom product can be easily separated from the first bottom core and the second bottom core by the stripper plate by releasing the pressing action of the rubber urethane by raising the first bottom core. Therefore, it is not necessary to form an undercut in the first lower core or the second lower core separately, and the workability is maximized.

1 is a block diagram of a conventional dual-output core device.
Fig. 2 is a first operational view of removing a top core in a conventional core apparatus; Fig.
3 is a second operational view of removing a product from a conventional core apparatus;
Fig. 4 is a view without an undercut in the prior art; Fig.
FIG. 5 is a prior art showing that the upper core is lifted without undercut, and the finished product can not be separated and removed at the same time.
6 is a block diagram of a dual-output core device of the present invention.
Fig. 7 is a view showing a state in which the second lower core is lowered in the present invention; Fig.
8 is an operation drawing for removing the upper core in the present invention.
Fig. 9 is an operation drawing for removing a product from the present invention. Fig.

The operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings and description. It should be understood, however, that the drawings and the following description are provided for illustrative purposes only and are not intended to limit the scope of the present invention.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. It is to be understood that the following terms are defined in consideration of functions in the present invention, and may vary depending on the user, the intention or custom of the operator, and the like. Therefore, the definition should be based on the contents of this whole design.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention and are incorporated in and constitute a part of this specification. The configuration is omitted as much as possible and the functional configuration that should be additionally provided for the present invention is mainly described.

Those skilled in the art will readily understand the functions of components that have been used in the prior art among the functional configurations not shown in the following description, The relationship between the elements and the added components for the present invention will also be clearly understood.

In order to efficiently explain the essential technical features of the present invention, the following embodiments will appropriately modify the terms so that those skilled in the art can clearly understand the present invention. However, It is by no means limited.

As a result, the technical idea of the present invention is determined by the claims, and the following examples are intended to illustrate the technical idea of the present inventive concept in a more effective manner to those skilled in the art, .

6 is a block diagram of a dual-output core device of the present invention.

Fig. 7 is a view showing a state in which the second lower core is lowered in the present invention; Fig.

8 is an operation drawing for removing the upper core in the present invention.

Fig. 9 is an operation drawing for removing a product from the present invention,

As shown in the drawings, the constituent elements of the present invention mainly include the upper core 10, the first lower core 20, the second lower core 30, the rubber urethane 40, the first article 50 (60), and a stripper plate (70).

The upper core 10 has a cup shape and is a means for guiding the second article 60 to be formed on the lower and lateral sides of the upper edges of the second articles 60.

The first lower core 20 is a means for wrapping the bottom surfaces of the first and second blanks (50) and (60) to guide the blanks of the first blanks (50) and the second blanks (60)

The second lower core 30 is a means for guiding the first article 50 to be formed on the upper and side surfaces of the lower side of the first article 50. The second lower core 30 of the present invention is composed of an upper plate 31, a middle plate 32 and a lower plate 33 and is formed as an I-shaped body through the first lower core 20 A first space part a is formed at a distance from the upper part of the first lower core 20 and a second space part b is formed between the first space part a and the first article part 50.

The rubber urethane 40 is inserted into the second space b of the second lower core 30 and is compressed while the second lower core 30 is lowered. And is inserted between the lower core (20) and the first bobbins (50) to guide the first bobbins (50) to be fixed without being flowed.

The first article of manufacture 50 is installed on top of the lower core 30 and the second article of sale 60 is installed on top of the first article of manufacture 50.

The stripper plate 70 is installed between the first lower core 20 and the second yarn introduction part 60 and lifts up the second yarn introduction part 60 while separating the upper core 10, (50) and the second article (60) from the first lower core (20) and the second lower core (30) together with the first article (50)

Hereinafter, an assembling method of the present invention will be described.

The present invention relates to an upper core 10, a lower core 20, a lower core 30, a rubber urethane 40, a first article of manufacture 50, a second article of manufacture 60 And a stripper plate 70. The second lower core 30 is located at the bottom and the first lower core 20 is disposed while enclosing the body of the second lower core 30, And an upper core 10 is disposed on an upper portion of the first lower core 20.

A stripper plate 70 is provided between the first lower core 20 and the upper core 10.

A first article 50 and a second article 60 are sequentially stacked between the upper plate 31 and the upper core 10 of the second lower core 30. The first lower core 20, And a rubber urethane 40 is disposed in the second space portion b of the housing.

The rubber urethane 40 is compressed when the upper plate 31 of the second lower core 30 is lowered and fixed so as to prevent the first product 50 from flowing. The upper core 10 is separated from the first and second bobbins 50 and 60.

When the upper plate 31 of the second lower core 30 is lifted up after separating the upper core 10, the pressure of the rubber urethane 40 is released and returned to the original position. At this time, So that the first and second yarn introduction parts 50 and 60 can be separated from the second lower core part 30. [

Hereinafter, the operation of the present invention will be described.

The present invention is characterized in that the first lower core 20 is disposed on the middle plate 32 of the second lower core 30 and the rubber urethane 40 is disposed on the second space b of the first lower core 20 The injection liquid is supplied between the upper core 10 and the first and second lower cores 20 and 30 to manufacture the first and second articles 50 and 60.

Hereinafter, a process of separating the articles 50 and 60 will be described.

First, before separating the upper core 10, the lower plate 33 of the second lower core 30 is lowered. The middle plate 32 and the upper plate 31 of the second lower core 30 are lowered so that the upper plate 31 of the second lower core 30 is lowered through the first space a, And the rubber urethane 40 provided in the second space portion b is compressed in the second space portion b so that the first lower core 20 and the second lower core 20 are connected to each other. The second lower core 30 and the first article of manufacture 50 are fixed.

As a result, the rubber urethane 40 is compressed by the action of lowering the second lower core 30 so that the first article 50 is pressed and fixed by the rubber urethane 40, And a third space c is newly formed on the upper core 30.

When the upper core 10 is raised in this state, the first and second articles 50 and 60 remain fixed to the second lower core 30.

Then, when the second lower core 30 is raised, the upper space 31 of the second lower core 30 rises through the third space c and the third space c is buried The pressing between the first lower core 20 and the second lower core 30 and the first production item 50 is released while the rubber urethane 40 is released from compression.

Thereafter, when the first and second blanks (50, 60) are separated using the stripper plate (70), the first blanks (50) and the second blanks (60) 20 and the second lower core 30, respectively.

10: Phase core
20: first lower core
30: second lower core
40: Rubber urethane
50: Part 1 Exhibit
60: Part 2 Exhibit
70: stripper plate

Claims (2)

In a core apparatus for taking out a double yarn article, for producing and delivering a first yarn product and a second yarn product between an upper core and a lower core,
An upper core 10 which is in the form of a cup and surrounds the upper rim surface of the second bobbin articles 60 and guides the second bobbin articles 60 to be formed on the lower and side surfaces thereof;
A first lower core (20) for wrapping the bottom surfaces of the first and second blanks (50, 60) and guiding the bottom of the first blanks (50) and the second blanks (60) to form a blanket;
A second lower core (30) which surrounds a lower edge of the first article (50) and guides the first article (50) to be formed on the upper and side surfaces thereof;
The second lower core 30 is inserted into the second space b of the second lower core 30 and the second lower core 30 is compressed while being lowered, A rubber urethane 40 inserted between the first and second articles 50 to guide the first article 50 to be fixed without being moved;
A first collection part (50) installed on the upper part of the lower core (30);
A second article of manufacture (60) installed on top of the first article of manufacture (50);
The second yarn introduction part 60 is installed between the first lower core 20 and the second yarn introduction part 60 and separated from the upper core 10 to form the first yarn introduction part 50 together with the first yarn introduction part 50, And a stripper plate (70) for separating the first article (50) and the second article (60) from the first lower core (20) and the second lower core (30) Core device for extraction. The method according to claim 1,
The second lower core 30 includes an upper plate 31, a middle plate 32 and a lower plate 33. The second lower core 30 passes through the first lower core 20 in an I- And a second space part (b) is formed between the first sponge part (20) and the first sponge part (20) by forming a first space part (a) Core apparatus for taking out articles.

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