KR101164304B1 - manufacturing method of injection mold - Google Patents
manufacturing method of injection mold Download PDFInfo
- Publication number
- KR101164304B1 KR101164304B1 KR1020090040659A KR20090040659A KR101164304B1 KR 101164304 B1 KR101164304 B1 KR 101164304B1 KR 1020090040659 A KR1020090040659 A KR 1020090040659A KR 20090040659 A KR20090040659 A KR 20090040659A KR 101164304 B1 KR101164304 B1 KR 101164304B1
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- KR
- South Korea
- Prior art keywords
- mold core
- mold
- injection
- fine
- manufacturing
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
- B29C45/372—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings provided with means for marking or patterning, e.g. numbering articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a method for manufacturing an injection mold in which fine pattern irregularities are formed; Mold core for manufacturing a mold core by attaching an alloy fixing member integrally by a casting method to the back surface of the fine irregularities formed on the surface of the fine pattern irregularities for forming a fine pattern on the surface of the plastic injection molding. And a mold core processing step of processing a molten resin into the mold core so that the molten resin can be injected, and a mold core mounting step of mounting the mold core to an injection mold body. According to the present invention, by molding the plastic injection molding at the same time by expressing the optical pattern such as hologram or a specific image micro-pattern on the surface of the injection molding, the process for expressing the micro-pattern on the injection molding is simple, as well as the injection molding manufacturing efficiency is increased, It can be used for various products that require design and functionality.
Injection, mold, fine pattern
Description
The present invention relates to a method of manufacturing an injection mold having a fine pattern irregularities, and more specifically, to an injection mold for forming a micropattern such as an optical pattern or an image pattern on the surface of a plastic injection molding when the plastic injection molding is molded. It relates to a mold manufacturing method.
In general, when molding a plastic product, the plastic water support material is melted and injected into an injection mold manufactured to have a certain product shape.
By the way, in the case of the conventional injection mold, three-dimensional molding is possible to have a certain shape, but there is a problem that can not express a specific image or an optical pattern such as a hologram for obtaining an optical three-dimensional effect on the surface.
In particular, it is not possible to directly form an optical pattern such as a hologram for obtaining an optical stereoscopic effect or a fine pattern irregularities for directly expressing a specific image fine pattern on an injection molding. Attaching a sticker formed with an optical pattern on it, or through a separate printing to improve the aesthetics.
By the way, such a sticker or printing method is complicated after the production of the injection molding, as a separate work process is further performed.
In addition, when the fine pattern is formed on the injection molding by a sticker or a printing method, the sticker or the printing layer may be easily peeled off from the injection molding, and the forgery may be altered, thereby causing a problem in that the reliability of the product is inferior.
Accordingly, an object of the present invention is to solve such problems, it is an object of the present invention to express an optical pattern such as a hologram or a specific image micro-pattern on the surface of the injection molding when molding the plastic injection molding in the product requiring design and functionality An object of the present invention is to provide an injection mold manufacturing method in which fine pattern irregularities are formed.
In addition, the present invention provides an injection mold manufacturing method that can improve the manufacturing efficiency of the injection molding by simplifying the injection molding manufacturing process for forming a fine pattern on the surface of the injection molding, as well as forgery is impossible. The purpose is to provide.
The present invention to achieve this object; Mold core for manufacturing a mold core by attaching an alloy fixing member integrally by a casting method to the back surface of the fine irregularities formed on the surface of the fine pattern irregularities for forming a fine pattern on the surface of the plastic injection molding. Manufacturing process; A mold core processing step of processing a molten resin injectable into the mold core; The mold core mounting process for mounting the mold core to the body of the injection mold; provides an injection mold manufacturing method with a fine pattern irregularities formed, characterized in that consisting of.
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At this time, prior to the mold core manufacturing process, the curved surface forming step of the surface of the fine concave-convex member by using the upper and lower molding die having the same seating portion as the shape of the curved surface of the injection molding, the same as the curved surface of the injection molding; It is characterized by.
According to the present invention, by molding the plastic injection molding at the same time by expressing the optical pattern such as hologram or a specific image micro-pattern on the surface of the injection molding, the process for expressing the micro-pattern on the injection molding is simple, as well as the injection molding manufacturing efficiency is increased, It can be used for various products that require design and functionality.
In addition, the present invention has the advantage that it is impossible to forgery as the micropattern is integrally formed on the surface of the injection molding to improve the consumer's reliability of the product.
With reference to the accompanying drawings, a method for manufacturing an injection mold having a fine pattern irregularities according to the present invention will be understood by the embodiments described in detail below.
At this time, Figure 1 is a process flow diagram illustrating a manufacturing process of the injection mold with the fine pattern irregularities formed in accordance with the present invention, Figure 2 is a view showing a fine roughening member formed with a fine pattern of the present invention, Figure 3 Figure 4 is a view showing a state of forming a curved surface uneven member in accordance with the present invention, Figure 4 shows an example of manufacturing a mold core by integrally attaching the fixing member to the back of the base member formed with a fine pattern of the present invention 5 is a view showing a state in which the mold core of the present invention mounted on the body of the injection mold, Figure 6 is a view showing an injection machine equipped with an injection mold according to the present invention, Figure 7 is the present invention Figure 1 illustrates an example of an injection molded product manufactured using an injection mold equipped with an injection mold according to the present invention.
Referring to FIG. 1, the injection mold in which the fine pattern irregularities are formed according to the present invention has a fine pattern irregularities in order to form an optical pattern or an image fine pattern (hereinafter, referred to as a 'fine pattern') on the surface of the injection molded product. It is made by attaching a mold core integrated with a fixing member made of alloy material to the body of the injection mold integrally by the casting method on the back surface of the micro-concave member formed in the body.
Such an injection mold formed with fine pattern irregularities according to the present invention is a fine irregularity member manufacturing process (S100) of manufacturing a fine irregularity member having a fine pattern irregularities formed on a surface for forming a fine pattern on the surface of an injection molded product; Mold core manufacturing process (S120) of manufacturing a mold core by attaching a fixed member integrally by a casting method integrally to the back surface of the micro-convex member manufactured by the micro-convex member manufacturing process (S100), and the mold core manufacturing It consists of a mold core processing step (S130) for processing a sprue or runner for injecting molten resin into the mold core manufactured through the step (S120), and a mold core mounting step (S140) for mounting to the body of the injection mold.
On the other hand, the micro-convex member manufactured through the micro-convex member manufacturing process (S100) is further subjected to the three-dimensional molded surface forming process (S110) to form a certain curved surface when the three-dimensional effect is required according to the shape of the injection molding To perform a mold core manufacturing process (S120).
Hereinafter, the manufacturing process of this invention is demonstrated sequentially.
First, as shown in FIG. 2, the
The
At this time, the fine concave-
Of course, the fine concave-
Therefore, the fine concave-
On the other hand, after producing the fine concave-
For example, when forming an injection molding, when forming a predetermined curved surface on the surface of the injection molding and forming a fine pattern on the curved portion, the shape of the
To this end, by using the upper and
That is, by placing the plate-shaped
Next, a mold for manufacturing the
That is, the
In the case of injection mold, since a lot of pressure and heat is applied to the metal surface, it is preferable to use an alloy that can withstand high pressure and temperature because non-ferrous metals cannot overcome the pressure, which may cause dimensional error problems or product shapes on the product. Do.
On the other hand, the
Then, after the core mounting step (S140) of integrally mounting the
Therefore, when the plastic raw material resin is injected into the
As shown in FIG. 6, the injection molded product manufactured using the injection machine 1 is formed with a
Although the embodiments of the present invention have been described in detail as above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to the range substantially equivalent to the embodiment of the present invention.
1 is a process flow diagram illustrating a manufacturing process of an injection mold having a fine pattern unevenness according to the present invention;
Figure 2 is a view showing a fine irregular member formed fine pattern of the present invention,
3 is a view showing a state of forming a curved surface uneven member according to the present invention,
4 is a view illustrating an example of manufacturing a mold core by integrally attaching a fixing member to a rear surface of a base member on which a micropattern of the present invention is formed;
5 is a view showing a state in which the mold core of the present invention mounted on the body of the injection mold,
6 is a view showing an injection machine equipped with an injection mold according to the present invention,
7 is a view showing an example of an injection molded product manufactured using an injection machine equipped with an injection mold according to the present invention.
*** Explanation of symbols for main parts of drawing ***
1: injection machine 2: injection molding
2a: fine pattern 100: uneven member
130: fixing member 200: mold core
300: injection mold
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090040659A KR101164304B1 (en) | 2009-05-11 | 2009-05-11 | manufacturing method of injection mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090040659A KR101164304B1 (en) | 2009-05-11 | 2009-05-11 | manufacturing method of injection mold |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100121793A KR20100121793A (en) | 2010-11-19 |
KR101164304B1 true KR101164304B1 (en) | 2012-07-09 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020090040659A KR101164304B1 (en) | 2009-05-11 | 2009-05-11 | manufacturing method of injection mold |
Country Status (1)
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KR (1) | KR101164304B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101049479B1 (en) * | 2010-11-26 | 2011-07-15 | 한국기계연구원 | Methods for machining non-continuous various patterns on molds and the high quality non-continuous various patterns thereby |
CN104955625B (en) | 2013-08-01 | 2018-03-09 | Lg化学株式会社 | Mould for the alignment films of liquid crystal lens and for preparing the alignment films |
KR20220149286A (en) * | 2021-04-30 | 2022-11-08 | 삼성전자주식회사 | Molding product and mold for fabricating the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11285804A (en) * | 1998-03-31 | 1999-10-19 | Kubota Corp | Porous metallic mold member for casting non-ferrous metal |
JP2005193473A (en) * | 2004-01-06 | 2005-07-21 | Three M Innovative Properties Co | Transfer mold, its manufacturing method and fine structure manufacturing method |
-
2009
- 2009-05-11 KR KR1020090040659A patent/KR101164304B1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11285804A (en) * | 1998-03-31 | 1999-10-19 | Kubota Corp | Porous metallic mold member for casting non-ferrous metal |
JP2005193473A (en) * | 2004-01-06 | 2005-07-21 | Three M Innovative Properties Co | Transfer mold, its manufacturing method and fine structure manufacturing method |
Also Published As
Publication number | Publication date |
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KR20100121793A (en) | 2010-11-19 |
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