KR20150108186A - Transformation core type injection molding die - Google Patents
Transformation core type injection molding die Download PDFInfo
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- KR20150108186A KR20150108186A KR1020140031053A KR20140031053A KR20150108186A KR 20150108186 A KR20150108186 A KR 20150108186A KR 1020140031053 A KR1020140031053 A KR 1020140031053A KR 20140031053 A KR20140031053 A KR 20140031053A KR 20150108186 A KR20150108186 A KR 20150108186A
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- cavity
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Abstract
Description
The present invention relates to a pair of deformed core devices for taking out an injection mold. More specifically, it is possible to stably and precisely perform injection molding by separating opposed cavities from each other, and it is possible to stably take out an injection product after undercut molding and to shorten a mold replacement time without using hydraulic pressure Of course, the present invention relates to a pair of deformed core apparatuses for taking out an injection mold of an injection mold which can simplify the mold structure by simplifying the structure of the cavities for taking out the injection molds and miniaturizing the outer shape of the molds.
When an undercut portion is formed in an injection molded article such as a main body or parts of a general household appliance, a separate undercut processing apparatus is provided in an injection mold for molding the same.
In this injection mold, a high-temperature liquid resin material is injected into a cavity provided between a fixed plate and a movable mold, and then the mold is cooled to form a product. After the mold is opened by moving the movable mold, Is a metal frame from which a molded product can be obtained.
1, Korean Patent Registration No. 10-0201559 (entitled Inner Underscale Submolding Mold Structure) is an injection molding machine in which a
In the conventional injection mold apparatus having such a configuration, the molding material is injected into the molding unit through the gate (not shown) under the condition that the
However, in the conventional injection mold apparatus as described above, in order to smoothly separate the undercut portion of the product, that is, the uneven portion that does not fall in the mold opening / closing direction, in the separation of the
On the other hand, a modified core using a hydraulic cylinder has been developed to solve the problems of the conventional injection mold apparatus described above. However, precise control is not easy, and interference occurs between the constituent elements, There was a problem.
(Patent Document 1) Korean Patent Registration No. 10-0201559
SUMMARY OF THE INVENTION An object of the present invention is to provide a method of molding a product by injecting high temperature liquid resin into a plurality of cavities facing each other and then cooling the product to form a product, As the core device, the body portions extending in each cavity are staggered so as to correspond to each other, so that the separation range between the cavities can be ensured at the time of taking out, thereby stably and precisely performing injection molding. A pair of deformable core devices for extracting an injection mold of an injection mold capable of improving productivity.
In the core which is provided in a mold of an injection molding apparatus disclosed in an embodiment of the present invention to form a cavity for injection molding and which is driven for taking out the injection molding, the molding and taking-out of the injection molding provided in the mold, A first body part having a first cavity formed at a tip end thereof and moving up and down to rotate the first cavity; And a second body part provided in the mold and having a second cavity formed in a shape corresponding to the first cavity and moving up and down to rotate the second cavity, And a driving unit coupled to a lower end of the second body unit to provide power for lifting and lowering operation, and a second body unit having a first body and a second body, And a pair of deformed core devices for taking out an injection mold of an injection mold, characterized in that a take-out operation part which is combined in a staggered shape is constituted.
According to another aspect of the present invention, the first body portion may be formed to extend from an upper side of an upper surface of a rear surface of the first cavity, and a first molding portion may be formed on a surface of the first cavity, A pair of deformed core devices for taking out an injection mold of the injection mold.
According to another aspect of the present invention, the second body portion may be formed at a position corresponding to the first body portion and extend to a lower surface of the lower surface of the rear surface of the second cavity, A pair of deformable core devices for taking out an injection mold of an injection mold, characterized in that a second shaping section forming a part of the injection mold is constituted.
Further, in the present invention, the take-out actuating part is formed on each of the incised surfaces of the first body part and the second body part, and the first and second cavities are in surface contact with each other, Wherein the first body part and the second body part support up and down movements of the first body part and the second body part while maintaining a staggered shape.
Further, according to the present invention, a predetermined guide projection and a guide groove are formed in the first and second body portions, respectively, so as to support the lifting and lowering operation, respectively, in the take-out operation portion. The present invention provides a deformable core device.
In addition, the first and second bodies may be stacked in a staggered manner so as to maintain a slope angle (a) inclined by a predetermined angle, so that the first and second bodies are staggered Wherein the first and second cavities are moved in the left and right directions and are moved or combined with each other while being moved at the same distance, thereby providing a pair of deformed core devices for taking out the injection mold of the injection mold.
The first and second body portions may further include first and second drive holes connected to a drive device to receive power from the drive device to move up and down the first and second body portions, respectively And a pair of deformed core devices for taking out the injection mold of the injection mold.
Further, the present invention is characterized in that any one of the first body portion and the second body portion controls the rotation angle of the first and second cavities, and the operating range of the first body portion and the second body portion, And a take-out control member for controlling the take-out mold is further configured.
According to the structure of the present invention described above, it is possible to stably take out the injection molded product, and the hydraulic pressure is not used, so that the mold replacement time can be shortened.
In addition, there is an advantage that stable high-precision injection molding can be performed by operation in which cavities facing each other are separated from each other.
Further, there is an advantage in that the range of separation to both sides according to the size of the injection product can be controlled by the body portion having the staggered structure extending to the cavities facing each other.
On the other hand, the structure of the cavity for taking out the injection molded article is simple, which simplifies the mold structure and makes it possible to miniaturize the outer shape of the mold.
1 is a view showing a conventional injection mold apparatus.
Figures 2 and 3 show a pair of modified cores according to the invention.
Figure 4 is a plan view of a pair of deformable cores according to the present invention,
5 is an operating state diagram showing a pair of deformable cores according to the invention,
6 is a view showing an embodiment of a pair of deformable cores according to the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. 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.
In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."
The core of a pair of deformable core devices disclosed in the present invention is formed such that each of the
The injection mold apparatus is a device for thermoplastic molding or thermosetting plastic molding material which is heated and melted in an injection molding machine and then filled and injected into a cavity of an injection mold to be solidified or cured to be taken out as a molded product.
The portion which is difficult to separate the injection molded product P from the cavity in the process of taking out the molded product P is called an undercut.
Hereinafter, the technical idea of the present invention described above will be described in detail through preferred embodiments.
Fig. 4 is a plan view showing a pair of deformable cores according to the present invention, Fig. 5 is a view showing a pair of deformable cores according to the present invention, Fig. 6 is a diagram illustrating an embodiment of a pair of deformable cores according to the present invention.
As shown in the figure, a pair of
The
The
The
The
The
The
The
Here, the
The
3A, the first and
That is, in the present invention, the
In other words, the take-out
Here, the take-out
The pair of
In other words, in the first and
At this time, the first and
The
At this time, the take-out
According to a preferred embodiment of the present invention, the separate operation range of the
The positions of the
Accordingly, the
In the present invention, the
The
The pair of
While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.
It is also to be understood that the terms such as " comprises, "" comprising," or "having ", as used herein, mean that a component can be implanted unless specifically stated to the contrary. And all terms including technical and scientific terms are to be construed in a manner generally known to one of ordinary skill in the art to which this invention belongs, It has the same meaning as understood.
The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.
110: first cavity 112: first molding part
120: first body part 130: second cavity
132: second forming part 140: second body part
150: deformed core 160: molding space part
170: take-out angle control member 210: take-
Claims (5)
A first body part provided in the mold and having a first cavity formed at the tip end thereof for molding and taking out an injection molded article formed with an undercut part and moving up and down to rotate the first cavity;
And a second body part installed in the mold and having a second cavity formed in a shape corresponding to the first cavity and moving up and down to rotate the second cavity,
A driving device coupled to a lower end of the first and second body parts to provide power for raising and lowering operations,
Wherein the first body part and the second body part are respectively formed to be opposed to each other and configured to be in a staggered state while being kept in contact with each other. A pair of strained core devices.
The first body portion may include:
And a first molding part which is formed to extend from an upper side of an upper side of a rear surface of the first cavity and a part of an injection space part is formed on one surface of the first cavity. A pair of strained core devices.
The second body portion
A second molding part formed on a lower surface of the rear surface of the second cavity at a position corresponding to the first body part and having a part of an injection space part formed on one surface of the second cavity And a pair of deformed core devices for taking out an injection mold of the injection mold.
Wherein the take-out operation portion is formed on each of the incised surfaces of the first body portion and the second body portion so that the first and second cavities are in plane contact with each other, Wherein the first and second body portions are supported by the first and second body portions while maintaining the first and second body portions.
Wherein the first body portion and the second body portion are provided with a take-out control member for controlling the rotation angle of the first and second cavities and controlling the operation range of the first body portion and the second body portion, And a pair of deforming core devices for taking out an injection mold of the injection mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140031053A KR101588303B1 (en) | 2014-03-17 | 2014-03-17 | Transformation core type injection molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140031053A KR101588303B1 (en) | 2014-03-17 | 2014-03-17 | Transformation core type injection molding die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20150108186A true KR20150108186A (en) | 2015-09-25 |
| KR101588303B1 KR101588303B1 (en) | 2016-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020140031053A KR101588303B1 (en) | 2014-03-17 | 2014-03-17 | Transformation core type injection molding die |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100201559B1 (en) | 1996-10-14 | 1999-06-15 | 오상수 | Undercut extract mold |
| KR100233053B1 (en) * | 1997-09-29 | 1999-12-01 | 윤종용 | Frame for injection molding of plastic |
| JP2001129857A (en) * | 1999-11-02 | 2001-05-15 | Nec Gumma Ltd | Injection mold of plastic material |
| JP2010083033A (en) * | 2008-09-30 | 2010-04-15 | Technocrats Corp | Undercut processing mechanism |
| JP2013022865A (en) * | 2011-07-22 | 2013-02-04 | Technocrats Corp | Undercut processing mechanism |
-
2014
- 2014-03-17 KR KR1020140031053A patent/KR101588303B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100201559B1 (en) | 1996-10-14 | 1999-06-15 | 오상수 | Undercut extract mold |
| KR100233053B1 (en) * | 1997-09-29 | 1999-12-01 | 윤종용 | Frame for injection molding of plastic |
| JP2001129857A (en) * | 1999-11-02 | 2001-05-15 | Nec Gumma Ltd | Injection mold of plastic material |
| JP2010083033A (en) * | 2008-09-30 | 2010-04-15 | Technocrats Corp | Undercut processing mechanism |
| JP2013022865A (en) * | 2011-07-22 | 2013-02-04 | Technocrats Corp | Undercut processing mechanism |
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| Publication number | Publication date |
|---|---|
| KR101588303B1 (en) | 2016-02-12 |
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