KR20150138545A

KR20150138545A - Co-injection molding apparatus and method

Info

Publication number: KR20150138545A
Application number: KR1020140065401A
Authority: KR
Inventors: 손정일; 정재열; 이민희
Original assignee: (주)엘지하우시스
Priority date: 2014-05-29
Filing date: 2014-05-29
Publication date: 2015-12-10

Abstract

Disclosed is a simultaneous injection apparatus and method for injection molding of heterogeneous injection materials.
According to one aspect of the present invention, there is provided a method of manufacturing a semiconductor device, comprising: a first injection material supply unit for supplying a first injection material; a second injection material supply unit for supplying a second injection material; And a plurality of injection molds for injecting the injection molding material.

Description

[0001] CO-INJECTION MOLDING APPARATUS AND METHOD [0002]

The present invention relates to an apparatus and a method for simultaneous injection of heterogeneous injection materials, and more particularly, to a system and method for simultaneous injection of heterogeneous injection materials including natural fibers and synthetic resin, Injection apparatus and method.

In general, injection molding is central to a method of molding a thermoplastic resin by a plastic molding process. It can be molded from a small product to a relatively bulky product, and it is one of the molding methods with high efficiency because it is capable of repeated production and mass production.

However, most of the injection apparatuses that have been introduced so far use a single injection material, and it has been difficult to apply a variety of colors and patterns to impart a high quality aesthetic to the product.

Furthermore, development of techniques for utilizing natural fiber as an injection material as an eco-friendly biocomposite is required.

Prior art related to the present invention is Korean Patent Laid-Open Publication No. 10-2009-0115415, which discloses a technique relating to a synthetic resin product injection apparatus.

The present invention provides a simultaneous injection apparatus and method for simultaneously injecting a heterogeneous injection material including natural fibers and synthetic resin into an integral molded article in an injection mold.

The problems to be solved by the present invention are not limited to the above-mentioned problem (s), and another problem (s) not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an injection molding machine including: a first injection material supply unit for supplying a first injection material; A second injection material supply unit for supplying a second injection material; And an injection mold that simultaneously receives and injects the first and second injection materials.

The first injection material and the second injection material may include natural fibers and synthetic resin.

The natural fiber may be at least one of Kenaf, Jute, and Flax.

The synthetic resin may be a thermoplastic resin.

The injection mold may be provided with a first injection material injection passage connected from the first injection material supply unit toward the molding space and a second injection material injection passage connected from the second injection material supply unit toward the molding space.

The first injection material injection path and the second injection material injection path may be connected to each other through a different path to the molding space of the injection mold.

In addition, the first injection material injection path and the second injection material injection path may be connected to each other through a different path to the molding space of the injection mold, and may be formed in a direction crossing each other.

In addition, the first injection material injection path and the second injection material injection path may be connected to each other through a different path to the molding space of the injection mold, and may be formed in a direction parallel to each other at predetermined intervals.

According to another aspect of the present invention, there is provided a method of manufacturing a semiconductor device, comprising: a first injection material supplying step of supplying a first injection material to an injection mold; A second injection material supply step of supplying a second injection material to the injection mold; And simultaneously injecting the first and second injection materials by using the injection mold. The present invention also provides a method for simultaneously injecting a heterogeneous injection material.

The first injection material supply step and the second injection material supply step may be performed simultaneously or sequentially.

In the first injection material supply step and the second injection material supply step, the first injection material and the second injection material may include natural fibers and synthetic resin.

The natural fiber may be at least one of Kenaf, Jute, and Flax.

The synthetic resin may be a thermoplastic resin.

In the first injection material supply step and the second injection material supply step, the first injection material and the second injection material may be supplied to the molding space of the injection mold through different paths.

In the first injection material supply step and the second injection material supply step, the first injection material and the second injection material are supplied to the molding space of the injection mold through different paths, and are formed in a direction intersecting each other And may be supplied through respective injection passages.

In the first injection material supply step and the second injection material supply step, the first injection material and the second injection material are supplied to the molding space of the injection mold through different paths, Lt; RTI ID = 0.0 > direction. &Lt; / RTI >

According to the present invention, it is possible to simultaneously and simultaneously inject different kinds of injection materials including natural fibers and synthetic resin into a single injection mold, and simultaneously perform a process of injecting the same into a single molded product.

Particularly, by simultaneously injecting different kinds of injection materials including natural fibers (e.g., kenaf, jute, flax, etc.) and synthetic resin (e.g., thermoplastic resin) An eco-friendly molded article having various pattern shapes can be produced.

1 is a conceptual view briefly showing a simultaneous injection molding machine for a heterogeneous injection material according to an embodiment of the present invention.
2 is a conceptual view schematically showing another example of a simultaneous injection molding machine for heterogeneous injection materials according to an embodiment of the present invention.
3 is a flowchart schematically illustrating a method of simultaneously injecting a heterogeneous injection material according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the following description of the present invention, a 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. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, an apparatus and a method for simultaneously injecting heterogeneous injection material according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a conceptual view briefly showing a simultaneous injection molding machine for a heterogeneous injection material according to an embodiment of the present invention, and FIG. 2 is a conceptual view briefly showing another example of a simultaneous injection molding machine for a heterogeneous injection material according to an embodiment of the present invention.

1 and 2, a heterogeneous injection material simultaneous injection apparatus 100 includes an injection mold 110, a first injection material supply unit 120, and a second injection material supply unit 130. As shown in FIG.

The injection mold 110 is provided with a molding space for injection inside and corresponds to an injection mold capable of molding from a small product to a product having a relatively large volume.

Therefore, it is not necessarily limited to the illustrated shape, and the shape may be slightly different depending on the shape and size of the product.

Particularly, the injection mold 110 may be supplied with different injection materials, for example, the first injection material M1 and the second injection material M2 at the same time, or may be sequentially supplied and simultaneously injected into an integral molded product.

The first injection material supply unit 120 may be configured to supply the first injection material M1 into the inner molding space of the injection mold 110. [

And the second injection material supply unit 120 may be configured to supply the second injection material M2 into the inner molding space of the injection mold 110. [

Here, the detailed configurations of the first injection material supply unit 120 and the second injection material supply unit 130 may be conventionally known.

The first injection material M1 and the second injection material M2 supplied to the inner molding space of the injection mold 110 may include natural fibers and synthetic resin. Each of these contents and ratios can be determined differently depending on the form of the product.

For example, the natural fiber may be Kenaf, Jute, Flax, or the like.

Kenaf is one of the three major fiber crops in the world, which can be used in a variety of materials, such as Mugunghwa and one-year-old herbaceous plants from West Africa. Particularly, the horses are fast growing and have a large amount of carbon dioxide absorption, and are widely used for the production of fine paper and environmentally friendly wallpaper, architectural board, automobile frame, functional clothing, charcoal, feed, oil adsorbent, mushroom cultivation medium and bioethanol .

Jute (Jute) is the most abundant plant in India and Pakistan. It takes a fiber of stem, and it is light brown. It is mainly used for bag, carpet, etc.

Flax is native to Central Asia and has been cultivated as a fiber plant in Egypt and Turkey since the past. It is mainly distributed in Europe and Argentina, and is also a plant once cultivated in Korea.

In addition to the examples of the natural fibers described above, various natural fibers may be included in the first and second injection materials.

A concrete example of the synthetic resin may be a thermoplastic resin.

In order to supply the first injection material M1 and the second injection material M2 together into the inner molding space of the injection mold 110, the first injection material injection passage 113 and the second injection material injection passage 115 may be provided together with the injection mold 110.

However, the first injection material injection path 113 and the second injection material injection path 115 may be connected to each other through a different path to the molding space of the injection mold.

That is, the first injection material injection path 113 and the second injection material injection path 115 may be provided along separate paths.

For example, the first injection material injection path 113 and the second injection material injection path 115 may be formed in directions intersecting with each other, as shown in FIG.

As another example, referring to FIG. 2, the first injection material injection path 113 and the second injection material injection path 115 may be spaced apart from each other at a predetermined interval.

Meanwhile, in the case of the simultaneous injection apparatus for heterogeneous injection material according to the embodiment of the present invention, the injection material supply control unit 150 may be further included.

The injection material supply control unit 150 may control the operation of the first injection material supply unit 120 by applying an operation signal C1.

In addition, the injection material supply control unit 150 may control the operation of the second injection material supply unit 130 by applying the operation signal C2.

The operation signal C1 transmitted to the first injection material supply unit 120 and the operation signal C2 transmitted to the second injection material supply unit 130 are supplied to the first and second injection material supply units 120, (120, 130), or sequentially.

Accordingly, the first and second injection materials M1 and M2 may be supplied to the injection mold 110 at the same time or may be sequentially supplied at predetermined time intervals. The first and second injection materials M1 and M2 supplied as described above can be simultaneously injected into an integral molded product through the injection mold 110. [

Next, a simultaneous injection method of heterogeneous injection material according to an embodiment of the present invention will be described.

3 is a flowchart briefly showing a simultaneous injection method of heterogeneous injection material according to an embodiment of the present invention.

Referring to FIG. 3, the simultaneous injection method for heterogeneous injection material includes a first injection material supply step 100, a second injection material supply step S200, and a simultaneous injection step S200.

In the first injection material supply step 100 and the second injection material supply step S200,

These steps are the steps of supplying the first injection material and the second injection material and supplying the first injection material and the second injection material prepared in the interior of the injection mold (i.e., the molding space).

In these steps, the first injection material and the second injection material may include natural fibers and synthetic resin.

For example, the natural fibers may be kenaf, jute, flax, or the like, and the synthetic resin may be a thermoplastic resin.

Meanwhile, the first injection material supplying step (S100) and the second injection material supplying step (S200) may be performed at the same time or may be sequentially performed at predetermined time intervals in a set order.

Further, the first injection material and the second injection material may be supplied through different paths toward the molding space of the injection mold.

As a specific example, the injection passages through which the first injection material is supplied and the injection passages through which the second injection material is supplied may be formed in directions intersecting with each other in the injection mold.

As another example, the injection path through which the first injection material is supplied and the injection path through which the second injection material is supplied may be spaced apart from each other at a predetermined interval in the injection mold.

Simultaneous injection (S300)

This step corresponds to the step of simultaneously molding the first injection material and the second injection material supplied to the inner molding space of the injection mold through the previous steps S100 and S200 to produce an integral molded product .

As a result, first and second injection materials, each containing natural fibers such as kenaf, jute, and flax, and synthetic resins such as thermoplastic resin, are simultaneously injected in a single injection mold to form various pattern shapes Can be produced. And more sophisticated appearance aesthetics can be realized.

As described above, according to the constitution and the function of the present invention, it is possible to simultaneously or sequentially supply different kinds of injection materials including natural fibers and synthetic resin (e.g., thermoplastic resin) to form an integral molded article in a single injection mold It may be possible to perform injection.

As a result, natural fibers such as kenaf, jute, and flax, which are eco-friendly biomaterials, are used as injection materials together with thermoplastic resin. An environmentally friendly molded article having the above properties can be produced.

Although the present invention has been described in detail with reference to specific embodiments thereof, it will be apparent that various modifications may be made without departing from the scope of the present invention.

It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are not to be construed in a limiting sense, and the scope of the present invention is indicated by the appended claims rather than by the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

M1: First injection material
M2: Second injection material
100: Simultaneous injection equipment of heterogeneous injection material
110: injection mold
111: molding space
113: first injection material injection path
114: second injection material injection path
120: first injection material supply unit
130: second injection material supply unit
150:

Claims

A first injection material supply unit for supplying a first injection material;
A second injection material supply unit for supplying a second injection material; And
And an injection mold that simultaneously receives and injects the first and second injection materials.

The method according to claim 1,
Wherein the first injection material and the second injection material are injection-
Simultaneous injection of heterogeneous injection materials, including natural fibers and synthetic resin.

3. The method of claim 2,
The above-
A simultaneous injection device for a heterogeneous injection material which is at least one of Kenaf, Jute, and Flax.

3. The method of claim 2,
The above-
Simultaneous injection system of heterogeneous injection material which is thermoplastic resin.

5. The method according to any one of claims 1 to 4,
In the injection mold,
A first injection material injection path connected from the first injection material supply unit toward the molding space,
And a second injection material injection path connected from the second injection material supply unit toward the molding space is provided.

6. The method of claim 5,
Wherein the first injection-material injection path and the second injection-
Wherein the injection port is connected to the molding space of the injection mold through different paths.

6. The method of claim 5,
Wherein the first injection-material injection path and the second injection-
Wherein the injection port is formed in a direction intersecting with a molding space of the injection mold through different paths.

6. The method of claim 5,
Wherein the first injection-material injection path and the second injection-
Wherein the plurality of injection holes are formed in a direction parallel to each other at predetermined intervals and connected to the molding space of the injection mold through different paths.

A first injection material supplying step of supplying a first injection material to an injection mold;
A second injection material supply step of supplying a second injection material to the injection mold; And
And simultaneously injecting the first and second injection materials using the injection mold.

10. The method of claim 9,
Wherein the first injection material supply step and the second injection material supply step are performed simultaneously or sequentially.

10. The method of claim 9,
In the first injection material supply step and the second injection material supply step,
Wherein the first injection material and the second injection material are injection-
A method of simultaneous injection of heterogeneous injection materials comprising natural fibers and synthetic resin.

12. The method of claim 11,
The above-
A method of simultaneous injection of heterogeneous injection materials, the method being at least one of Kenaf, Jute, and Flax.

12. The method of claim 11,
The above-
Simultaneous injection method of heterogeneous injection material which is a thermoplastic resin.

14. The method according to any one of claims 9 to 13,
In the first injection material supply step and the second injection material supply step,
Wherein the first injection material and the second injection material are supplied to the molding space of the injection mold through different paths.

14. The method according to any one of claims 9 to 13,
In the first injection material supply step and the second injection material supply step,
Wherein the first injection material and the second injection material are supplied to the molding space of the injection mold through different paths,
Wherein the plurality of injection paths are provided through respective injection passages formed in directions intersecting with each other.

14. The method according to any one of claims 9 to 13,
In the first injection material supply step and the second injection material supply step,
Wherein the first injection material and the second injection material are supplied to the molding space of the injection mold through different paths,
And is supplied through respective injection passages formed in a direction parallel to each other at predetermined intervals.