KR20160000917A

KR20160000917A - Apparatus for non-symmetrical embossed mold

Info

Publication number: KR20160000917A
Application number: KR1020140077980A
Authority: KR
Inventors: 류기택; 박형근; 강명창; 김민욱
Original assignee: (주)파인테크; 부산대학교 산학협력단; 재단법인 하이브리드 인터페이스기반 미래소재 연구단
Priority date: 2014-06-25
Filing date: 2014-06-25
Publication date: 2016-01-06
Also published as: WO2015199261A1

Abstract

The present invention relates to an apparatus for an asymmetric embossing mold. The apparatus for an asymmetric embossing mold according to the present invention comprises: an object which includes a membrane or a film to be separated; and upper and lower molds which are arranged in the top and bottom of the object. Blades to remove the membrane or the film formed on the object are formed on the bottom surface of the upper mold and the top surface of the lower mold to be embossed, and both sides of the blades are asymmetrical on the basis of a vertical line in respect of the bottom surface of the upper mold or the top surface of the lower mold. The apparatus for an asymmetric embossing mold according to the present invention facilitates the cutting of a workpiece when the workpiece is cut and improves the service life of the embossing mold.

Description

[0001] APPARATUS FOR NON-SYMMETRICAL EMBOSSED MOLD [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an asymmetric positive angle mold apparatus, and more particularly, to an asymmetric positive angle apparatus capable of easily cutting an object and improving the service life of the positive angle mold.

Normally, the embossed mold means a die formed by embossing blades so as to cut more precisely and safely the functional film and double-sided tape of a precise and complicated shape that is cut into the existing wood and mold.

Generally, the embossed metal mold is generally produced by etching a thin steel plate of 0.6 mm to 3 mm in accordance with the shape and then CNC precision machining. Regarding the above-mentioned embossed mold, Japanese Patent No. 10-607906 has been disclosed.

The above-mentioned embossing mold is easy to install, easy to use, can be applied to all presses, is excellent in precision and is suitable for processing precision products, .

Due to the above-mentioned advantages, the relief mold has been applied to various fields such as a flexible printed circuit board, a double-sided tape, a packing material, an insulator, a precision processing material, a liquid crystal display device and a protective film.

The embossed mold is formed with a blade having a specific pattern for processing the product to perform cutting on the substrate.

The chips separated on the substrate by the positive mold can be removed from the substrate by a post-treatment process.

Conventional embossed molds are etched to form process protrusions, and then the process protrusions are grinded on the side walls of the process protrusions in the order of roughing, medium cutting, and finishing to form blades.

However, in order to sharpen the cutting face of a conventional embossed mold, both side faces of the blade 18 are symmetrically formed at an angle to be inclined as shown in FIG. 1, or as shown in FIG. 2, The one side of the blade 18 is vertically machined by the blade 50 and the other side is formed to be inclined at a certain angle. Such a conventional embossing die has a problem in that the strength of the protruding embossing die blade 18 is weakened, There was a problem that this was shortened.

Korean Patent Publication No. 10-2014-0058741 (published on May 15, 2014) Domestic Registration No. 10-1410811 (registered on June 17, 2014)

The present invention is to provide an asymmetric boss die for asymmetrical formation of a blade on a positive metal mold, thereby facilitating cutting of the object and improving the life of the metal boss.

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

An asymmetric positive-angle mold apparatus according to the present invention includes: an object including a film or a film to be peeled; And a blade for removing a film or a film formed on the object is formed on the lower surface of the upper mold and the upper surface of the lower mold so as to protrude in a convex shape, The blades are configured such that both sides of the outer circumferential surface of the blade are asymmetric with respect to a vertical line to the lower surface of the upper mold or the upper surface of the lower mold.

One side of the blade may be formed with an angle formed by the vertical line and one outer peripheral surface of the blade within a range of 23 to 27 degrees.

The other side of the blade may be formed with an angle formed by the vertical line and the outer circumferential surface of the other side of the blade within a range of 3 to 7 degrees.

The film or film to be peeled off the object may be any one selected from a flexible printed circuit board, a double-sided tape, a packing material, an insulator, a precision processing material, a liquid crystal display device and a protective film.

The upper mold or the lower mold may be formed of an iron plate or a metal plate having a thickness of 0.5 mm to 5 mm.

Further, an asymmetric positive-angle mold apparatus according to the present invention includes: an object including a film or a film to be peeled; And a boss for removing a film or a film formed on the object, wherein the blades are configured asymmetrically on both sides of the outer circumferential surface of the blade with respect to a vertical line of the horizontal plane of the boss.

The tips of the blades can be protruded within a range of 26 to 34 degrees.

The tip of the blade is formed at an angle formed by the vertical line and one outer peripheral surface of the blade within a range of 23 to 27 degrees and an angle formed between the vertical line and the outer peripheral surface at the other side of the blade is within a range of 3 to 7 .

The tips of the blades may have an angle of 30 ° formed by one side and the other side.

The relief mold may be formed of an iron plate or a metal plate having a thickness of 0.5 mm to 5 mm.

The details of other embodiments are included in the detailed description and drawings.

The asymmetric positive-angle mold apparatus according to the present invention has an effect of facilitating cutting of a workpiece at the time of cutting, and at the same time, improving the service life of the positive-angle metal mold.

It will be appreciated that various embodiments of the inventive concepts of the present invention can provide various effects not specifically mentioned.

1 and 2 are cross-sectional views showing a blade of a relief mold manufactured by a conventional method.
FIG. 3 is a cross-sectional view of a blade in an asymmetric positive-angle mold apparatus according to the present invention.
4 is a view showing an embossing die for an upper mold and a lower mold in an asymmetric embossing mold apparatus according to the present invention.
FIGS. 5 to 9 are views for explaining a processing method for forming a blade in the asymmetric embossed mold apparatus according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity.

Terms such as top, bottom, top, bottom, or top, bottom, etc. are used to distinguish relative positions in components. For example, in the case of naming the upper part of the drawing as upper part and the lower part as lower part in the drawings for convenience, the upper part may be named lower part and the lower part may be named upper part without departing from the scope of right of the present invention .

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed in an ideal or overly formal sense unless expressly defined in the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method of processing an asymmetric embossing die according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a cross-sectional view of a blade in an asymmetric embossing mold apparatus according to the present invention, FIG. 4 is a view showing an embossing mold for an upper mold and a lower mold in the asymmetric embossing apparatus according to the present invention, 9 is a view for explaining a machining method for forming a blade in an asymmetric boss type mold apparatus according to the present invention.

Referring to FIGS. 3 to 9, in the asymmetric positive-angle mold apparatus according to the present invention, the blade 18 is formed on the upper mold 14 and the lower mold 16.

3, an upper mold 14 and a lower mold 16 are installed on the upper and lower presses 10 and 12, and a blade 18 is provided on the upper and lower molds 14 and 16, respectively. A shaping surface 19 formed in an embossed shape is formed.

The blade 18 is configured asymmetrically on both sides with respect to the vertical line 60 with respect to the cutting surface 19, and one side of the blade 18 may be formed to be more inclined than the other side.

For example, one side of the blade 18 is formed at an angle a1 formed by a vertical line 60 with respect to the cutting surface 19 and one outer peripheral surface of the blade 18 within a range of 23 to 27 degrees. And the other side of the blade 18 is formed at an angle a2 formed by the vertical line 60 with respect to the cutting face 19 and the other outer peripheral face of the blade 18 within a range of 3 to 7 degrees. .

In the asymmetric embossed metal mold according to the present invention, the blade 18 is formed within the range of the angle a1 + a2 to strengthen the strength of the blade 18, And the lifetime of the embossing die can be improved.

Here, the blade 18 may be formed as an asymmetric boss on both sides by the process of FIGS. 5 to 9 described later, and the embossing process of the blade 18 for the boss 18 will be described later.

The object 22 to be processed by the upper mold 14 and the lower mold 16 includes the cutting film 23. The cutting film 23 of the object 22 may be a flexible printed circuit board, a double-sided tape, a packing material, an insulator, a precision processing material, a liquid crystal display device, Or a film or a film which needs to be peeled off from the film 22.

For example, in the case of a printed circuit board, the upper insulating film on the conductive film or the wiring for processing the coating film or the layout shape may correspond to the cutting film 23.

As described above, the object 22 is interposed between the upper mold 14 and the lower mold 16 arranged in the vertical direction.

Meanwhile, the upper metal mold 14 and the lower metal mold 16 constructed as described above can be processed using a thin steel plate or a metal plate having a thickness of about 0.5 mm to 5 mm.

Here, the blade 18 may be formed through a CNC precision machining or the like after etching an iron plate or a metal plate in a specific pattern for cutting.

Hereinafter, a method of forming the blades 18 on the upper mold 14 and the lower mold 16 will be described with reference to Figs. 5 to 9. Fig. The following description refers only to the lower mold 16 for the sake of convenience of explanation, and can be equally applied to the upper mold 14 as well.

First, a photoresist 32 may be coated on the substrate 30 forming the lower mold 16 as shown in FIG. 5 to form the blade 18.

Next, a mask 34 is disposed on the photoresist 32 as shown in FIG. 6, so that normal exposure and development can be performed. Here, the mask 34 may have a pattern for forming the blade 18.

Next, when the above exposure and development are performed, a photoresist pattern 36 having a shape to process the blade 18 may be formed as shown in FIG.

When the photoresist pattern 36 is formed as described above, etching can be performed using the photoresist pattern 36 as the mask 34. As a result, the surface of the open substrate 30 is etched to a predetermined depth The protrusions 38 may be formed as they are etched.

At this time, the etching may be performed by various methods in consideration of the physical and chemical characteristics of the substrate 30, but it is preferable to conduct wet etching using an etching solution.

7, the photoresist pattern 34 on the protrusions 38 may be removed as shown in FIG. 8 by a known strip process. Referring to FIG.

Next, the protrusion 36 formed as shown in Fig. 8 can be formed of a blade 18 having a constant cutting angle as shown in Fig. 9 through mechanical machining such as CNC precision machining and chemical polishing.

3 and 4, in the asymmetric boss processing method according to the present invention, by the CNC precision machining, the protrusions 36 are formed on one side surface and the other side surface with respect to the vertical line 60 with respect to the cutting surface 19, The inclined angle of inclination can be formed differently.

For example, one side of the blade 18 through machining and chemical polishing, such as the CNC precision machining, may have an angle formed by a vertical line 60 with respect to the cutting surface 19 and one outer peripheral surface of the blade 18 and the other side of the blade 18 may be formed at an angle formed by the vertical line 60 with respect to the cutting surface 19 and the outer peripheral surface of the other side of the blade 18 a2) may be formed within a range of 3 DEG to 7 DEG.

At this time, the chemical polishing is performed to control the blade 18 to a precise numerical value, and it is possible to induce physical polishing using a polymer.

After the blade 18 is formed as shown in FIG. 9, coating and plating may be performed to protect the surface, and then the lower mold 16 may be manufactured through an inspection process.

At this time, the inspection may include a step of checking whether the height of the blade 18 of the lower mold 16, the cutting angle, the thickness of the substrate 30, the edge angle of the blade 18, If it is determined that the product is good in the above inspection, the manufacturing process can be completed.

In the asymmetric embossed mold processing method according to the present invention, the blade 18 of the upper mold 14 may be formed in the same manner as the process of the lower mold 16, So that detailed description thereof will be omitted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that the invention may be practiced. It is therefore to be understood that one embodiment described above is illustrative in all aspects and not restrictive.

10; Upper press 12; Lower press
14; Upper mold 16; Lower mold
18; Blade 19; Cutting face
22; Object 23; Cutting membrane
50; End mill 60; vertical

Claims

An object comprising a film or film to be peeled off; And
And an upper mold and a lower mold disposed above and below the object,
A blade for removing a film or a film formed on the object is formed on the lower surface of the upper mold and the upper surface of the lower mold so as to protrude in a convex shape,
The blade
Wherein both sides of the outer circumferential surface of the blade are asymmetrically formed with respect to a vertical line of the lower surface of the upper mold or the upper surface of the lower mold.

The method according to claim 1,
Wherein one side of the blade is formed with an angle formed by the vertical line and one outer peripheral surface of the blade within a range of 23 to 27 degrees.

The method according to claim 1,
Wherein the other side of the blade is formed with an angle formed by the vertical line and the outer circumferential surface of the other side of the blade within a range of 3 to 7 degrees.

The method according to claim 1,
Wherein the film or film to be peeled off the object is any one selected from the group consisting of a flexible printed circuit board, a double-sided tape, a packing material, an insulator, a precision processing material, a liquid crystal display device and a protective film.

The method according to claim 1,
Wherein the upper mold or the lower mold is formed of an iron plate or a metal plate having a thickness of 0.5 mm to 5 mm.

An object comprising a film or film to be peeled off; And
And a relief mold having a blade protruding therefrom for removing a film or a film formed on the object,
The blade
Wherein both sides of the outer circumferential surface of the blade are formed asymmetrically with respect to a vertical line of the horizontal plane of the relief mold.

The method according to claim 6,
Wherein the tip of the blade protrudes within a range of 26 to 34 degrees.

The method according to claim 6,
The tip of the blade is formed at an angle formed by the vertical line and one outer peripheral surface of the blade within a range of 23 to 27 degrees and an angle formed between the vertical line and the outer peripheral surface at the other side of the blade is within a range of 3 to 7 Wherein the asymmetric boss is formed on the mold.

9. The method of claim 8,
Wherein an angle formed by one side and the other side circumferential surface of the tip of the blade is 30 deg..

The method according to claim 6,
Wherein the relief mold is formed of an iron plate or a metal plate having a thickness of 0.5 mm to 5 mm.