KR101739177B1

KR101739177B1 - Manufacturing Method and Manufacturing Device of Spectacle Temples

Info

Publication number: KR101739177B1
Application number: KR1020150001747A
Authority: KR
Inventors: 김도연
Original assignee: 김도연
Priority date: 2015-01-07
Filing date: 2015-01-07
Publication date: 2017-05-23
Also published as: KR20160084973A

Abstract

The present invention relates to a method of manufacturing a metal mold, comprising the steps of: forming a tip at one end of a metal core by an insert injection method; S20 of clamping a tip formed at one end of the metal core to locate the metal core in the cavity of the leg body; A step S30 in which the leg body and the tip are fused to each other by the temperature of the resin forming the leg body by molding the leg body into which the metal core is inserted and the resin forming the leg body is inserted into the cavity, A step S40 of demolding the leg body by cooling it, and a step S50 of removing the surplus portion formed on the leg body and the tip and performing a surface treatment.
According to the present invention, since the metal core is slimmed by the insert-molded eyeglass legs, the eyeglass legs touch the wearer's face at a minimum, sufficient tightening force is exerted so that the glasses do not easily flow down, There is an effect to be excellent. In addition, since the glasses are made lighter by the slimming of the glasses legs, and the comfort of the wearer who wears glasses for a long time is reduced, convenience for use and merchandise are improved.

Description

Technical Field [0001] The present invention relates to a manufacturing method of a spectacle frame,

The present invention relates to a method and an apparatus for manufacturing a spectacle leg, and more particularly, to a method and apparatus for manufacturing a spectacle leg that can reduce the thickness of a spectacle leg by applying an insert injection technique of a metal core.

In general, the glasses should be comfortable to wear when wearing on the user's face, and in order to make the glasses feel good, the glasses legs should be curved according to the contours of the wearer's face, It should be able to exert sufficient tightening force so that it does not flow easily.

In order to prevent the eyeglass legs from pressing down on the wearer's face in order to prevent the eyeglasses legs from touching the wearer's face as much as possible, Keep in close contact with your face.

Therefore, the function of reducing the feeling of pressure of the eyeglass legs and the function of preventing the eyeglass legs from falling off easily from the face require the shape of the opposite eyeglasses legs, so that the manufacture of the eyeglass legs It is difficult to find the answer although it is still difficult to find it.

In order to lighten the weight of the glasses, the glass legs made of resin reinforce the strength of the glasses legs and the iron cores are inserted into the ear pieces of the glasses legs so that the glasses legs come into close contact with the wearer's face.

Conventionally, when an eyeglass leg into which an iron core is inserted is injection molded, an iron core is inserted by a shooting method.

However, injection-type injection molding is possible when the thickness and width of the eyeglass legs are wide, but when the eyeglass legs are slim, the thickness and the width of the eyeglass legs are narrow, And thus it is difficult and difficult to manufacture a slim leg having an iron core inserted therein.

Korea registered patent: 10 - 1440097 (Notification date 2014. 09. 17)

Korean public utility model: 20 - 2009 - 0000517 (Publication date 2009. 01. 16)

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems,

An object of the present invention is to provide a method and an apparatus for manufacturing a pair of eyeglass legs, which can be fitted to a face of a user and can be fitted comfortably by allowing a metal core to be insert-injected into an earring portion of a pair of eyeglasses legs, .

According to an aspect of the present invention, there is provided a method of manufacturing a pair of eye glasses, the method comprising the steps of: forming a tip at one end of a metal core by an insert injection method; A step in which the tip is clamped and the metal core is positioned in the cavity of the leg body; and a step in which a resin constituting the leg body is injected into the cavity to mold the leg body into which the metal core is inserted, (S30) in which the leg body and the tip are fused by the temperature of the resin, S40 in which the leg body to which the tip is welded is cooled and demolded, and S50 . &Lt; / RTI >

A first step is formed on the outer surface of the tip formed at step S10 to form a step at one end of the inserted metal core. At the outer surface of the leg body formed at step S30, And a stepped outer surface is formed between the first step and the second step due to fusion of the leg body and the tip, wherein after step S50, And further comprising an S60 step of covering the cap for enhancing the wearing comfort.

The cap is extrusion-molded into a synthetic resin material or a rubber material so as to form a hole having the same diameter as the stepped outer surface at the center, and has the same length as the outer surface of the stepped portion.

In the step S60, lubricant is applied to the outer surface of the stepped portion and the tip, and when the lubricant-applied tip is press-fitted into the hole of the cap, the cap is fitted to the outer surface of the cap while being expanded in diameter, .

In the step S20, the metal core is inserted into the ear portion of the leg body to be molded when the metal core is positioned in the cavity of the metal mold for molding the leg body, and the end portion of the leg body, And the tip formed at one end is brought into contact with the tip.

According to another aspect of the present invention, there is provided an eyeglass leg manufacturing apparatus comprising: a first mold unit for forming a tip at one end of a metal core by an insert injection method; and a second metal mold for clamping a tip of the metal core formed in the first mold unit, A supply part for supplying the core to the second metal mold part; and an injection molding part for injection-molding the leg body so that the metal core supplied from the supply part is inserted into the ear-piercing part of the leg body, And a cutting portion for removing the surplus portion molded on the leg body and the surface of the metal mold.

Wherein the first metal mold part comprises a cavity for forming a tip and a fixing part which is provided at one side of the cavity and communicates with the cavity so as to fix the metal core so that one end of the metal core is located in the center of the cavity for forming the tip .

The cavity of the first mold part is formed with a step on the inner wall so that the first step is formed along the outer circumferential surface of the tip to be molded.

The supply unit may include a clamper for clamping a tip formed at one end of the metal core, a slider having the clamper installed at a predetermined interval, and a cylinder for transferring the slider back and forth.

The tip of the metal core is fixed so that the metal core formed at one side of the cavity and communicating with the cavity and formed integrally with the tip is located at the center of one side of the cavity, And a fastening portion for fastening the fastening portion.

The cavity of the second mold part is formed with a step on the inner wall so as to form a second step along the outer circumferential surface of the leg body to be molded, and the step of the inner wall is located at a position opposite to the other end of the metal core inserted into the leg body .

And further includes a sealing portion for fitting the cap to the ear portion of the leg body.

According to the embodiment of the present invention, since the metal core is slimmed by the insert-molded eyeglass legs, the eyeglass legs touch the wearer's face at a minimum, and sufficient tightening force is applied so that the glasses do not easily flow down, And it has an effect of excellent wearing comfort.

In addition, since the glasses are made lighter by the slimming of the glasses legs, and the comfort of the wearer who wears glasses for a long time is reduced, convenience for use and merchandise are improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart showing a method of manufacturing a spectacle leg according to an embodiment of the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a cross-sectional view illustrating a first metal mold according to an embodiment of the present invention.
FIG. 4 is a perspective view showing a tip of a metal core injection-molded in the first metal mold of FIG. 3; FIG.
5 is a conceptual view schematically showing a second mold part and a supply part according to an embodiment of the present invention.
6 is a plan sectional view showing a second metal mold according to an embodiment of the present invention.
Fig. 7 is a perspective view showing a leg body in which a tip is fused by injection molding in the second metal mold of Fig. 6; Fig.
8 is a perspective view showing that a cap is put on a stepped outer surface formed between the first step and the second step by fusion of the leg body and the tip.
FIG. 9 is a perspective view showing glasses manufactured using the eyeglass leg manufactured by the manufacturing method of the present invention. FIG.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method and an apparatus for manufacturing a spectacle frame according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For purposes of this specification, like reference numerals in the drawings denote like elements unless otherwise indicated.

FIG. 1 is a flow chart showing a method of manufacturing a spectacle leg according to an embodiment of the present invention, FIG. 2 is a configuration diagram showing an apparatus for manufacturing a spectacle leg according to an embodiment of the present invention, FIG. 4 is a perspective view illustrating a tip of a metal core injection-molded in the first metal mold of FIG. 3. FIG. 5 is a conceptual diagram schematically showing a second mold part and a supply part according to an embodiment of the present invention, FIG. 6 is a plan sectional view showing a second mold part according to an embodiment of the present invention, and FIG. 6 is a perspective view showing a leg body molded by injection molding and fusing a tip in the second mold portion of Fig. 6, Fig. 8 is a perspective view of a cap body Is a perspective view showing the above. FIG. 9 is a perspective view showing spectacles manufactured using the spectacle leg manufactured by the manufacturing method and apparatus of the present invention.

As shown in FIGS. 1 to 4, the present invention firstly inserts into the inside of a spectacle leg 100 to reinforce the strength of the spectacle leg 100 and to make the spectacle leg 100 closely contact the wearer's face The tip 120 corresponding to the end of the eyeglass leg 100 is primarily injection-molded at one end of the metal core 110 functioning as the tip.

The metal core 110 is inserted into the first metal mold 10 having one or more cavities 11 in the shape of a tip 120 so that the end of the metal core 110 is positioned in the center of the cavity 11 The tip 120 is injection-molded at one end of the metal core 110 by the resin injected into the cavity 11 (step S10)

3, the first mold part 10 includes a cavity 11 for molding the tip 120 and a fixing part 12 provided at one side of the cavity 11 and communicating with the cavity 11 Respectively.

The fixing part 12 fixes the center or the other end of the metal core 110 so that one end of the metal core 110 is positioned in the center of the cavity 11 forming the tip 120.

The cavity 11 corresponds to the inner side of the cavity 11 than the inner diameter of the side where the one end of the metal core 110 is located and the inner diameter of the side where the metal core 110 is not located is larger, (11a) is formed. 4, on the outer circumferential surface of the tip 120 formed at one end of the metal core 110, a first step 121 (see FIG. 4) is formed by a difference in outer diameter between the side where the metal core 110 is inserted and the side where the metal core 110 is not inserted. Is formed.

The tip 120 formed at one end of the metal core 110 is clamped to the supply part 20 and is inserted into the second mold part 30 for molding the leg body.

5, the supply unit 20 includes a clamper 21 for clamping the tip 120 formed at one end of the metal core 110, a slider 22 to which the clamper is installed, And a cylinder (23) for supplying the gas.

6, the second mold part 30 includes a cavity 31 for molding the leg body 130, a cavity 31 formed at one side of the cavity 31 and communicating with the cavity 31 to form a tip The metal core 110 is provided with a fixing portion 32 for fixing the tip 120 of the metal core 110 so as to be positioned at the center of one side of the cavity 31.

The cavity 31 has a stepped shape 31a formed on the inner wall of the cavity 31 so that the second step 131 is formed along the outer peripheral surface of the molded leg body 130. The step 31a of the inner wall is formed at a position opposite to the other end of the metal core 110 located in the cavity 31. [

One or more cavities 31 of the second mold part 30 for molding the leg body 130 may be provided and the clamper 21 of the supply part 20 may be provided on the second mold part 30 And may be formed at regular intervals in the slider 22 in accordance with the number of the cavities 31 formed. Then, the slider 22 is moved forward and backward by driving the cylinder 23.

That is, the clamper 21 clamps the tip 120 of the metal core 110 supplied to the cavity 31 of the second mold part 30 and drives the cylinder 23 to move the slider 22 So that the tip 120 of the metal core 110 is seated on the fixing portion 32 formed on the second metal mold 30.

The metal core 110 is positioned at the center of the diameter of the cavity 31 by the tip 120 that is seated on the fixed portion 32 of the second mold portion 30, It is placed in the earring part.

Next, the leg body 130 is molded with the resin constituting the leg body 130 inserted into the cavity 31 and the metal core 110 is inserted. At this time, the end of the leg body 130 to be molded is brought into contact with the end of the tip 120 formed at one end of the metal core 110, and the fusion of the leg body 130 and the tip 120 (Step S30)

Then, the leg body 130 to which the tip 120 is welded is cooled and demolded (Step S40)

As shown in FIG. 7, a second step 131 is formed in the deformed leg body 130, forming a step at the other end of the inserted metal core 110. A stepped outer surface 132 is formed between the first step 121 and the second step 131 by the fusion of the leg body 130 and the tip 120.

Then, a surplus portion molded in the leg body 130 and the tip 120 is cut by the cutting portion 40, and the cut surface is surface-treated (Step S50)

Here, the cutting portion 40 includes a finishing portion rotatably provided with a cutting edge for cutting the surplus portion of the eyeglass leg, and a smooth surface treatment of the cut surface.

8, the leg body 130, which has been cut and surface-treated, is transferred to the sealing portion 50, and the first step 121 of the ear piece, that is, the tip and the second step 131 of the leg body A cap 140 is attached to the stepped outer surface 132 of the recessed shape to enhance the feeling of fit.

The cap 140 is extruded with a synthetic resin material or a rubber material so as to form a hole 141 having the same diameter as the stepped outer surface 132 of the leg body 130 and has the same length as the stepped outer surface 132.

Here, the sealing portion 50 includes a spray portion for spraying a lubricant on the outer surface and the tip of the leg body, and a pressing portion for press-fitting both sides of the cap and the leg body so as to forcefully insert the lubricant- Means.

That is, the sealing portion 50 injects lubricant to the stepped outer surface 132 of the leg body and the tip 120, and causes the lubricant-applied tip 120 to be positioned in the hole 141 of the cap 140 Next, the cap 140 and the leg body 130 are press-fitted so that the tip 120 is inserted into the hole of the cap 140. [ At this time, the cap 140 is fitted to the outside of the tip 120 while being enlarged in diameter, and the cap 140 is put on the stepped outer surface 132 and is seated and engaged.

FIG. 9 is a state view of the eyeglass leg manufactured by the above method, wherein the eyeglass leg 100 of the present invention is combined with an eyeglass frame to make glasses.

As described above, according to the present invention, a tip is formed at one end of a metal core by an insert injection method, and a metal core, which is exposed to the outside of the tip, is injected into the ear portion of the leg body. It is possible to make the eyeglass legs slim.

In addition, since the metal core is slimmed with the insert-molded eyeglass legs, the eyeglass legs are minimally touched to the wearer's face and sufficient tightening force is applied so that the glasses do not easily flow down, .

In addition, the glasses are made lighter by slimming down the glasses legs, and the comfort of the wearer is reduced, thereby reducing the inconvenience of people wearing glasses for a long time.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims, And equivalents may be resorted to as falling within the scope of the invention.

100: eyeglass leg 110: metal core
120: Tip 121: 1st step
130: leg body 131: second step
132: stepped outer surface 140: cap
141: hole
10: first mold part 11: cavity
11a: Step 12:
20: supply part 21: clamper
22: Slider 23: Cylinder
30: second mold part 31: cavity
31a: Step 32:
40: cutting portion 50: sealing portion

Claims

A step S10 in which a tip is formed at one end of the metal core by an insert injection method and a first step is formed at an outer surface of the tip to form a step at one end of the inserted metal core;
A step S20 of clamping a tip formed at one end of the metal core to place the metal core in the cavity of the leg body;
A resin forming the leg body is injected into the cavity to mold the leg body into which the metal core is inserted and a second step formed at an outer end of the leg body to form a step at the other end of the inserted metal core, (S30) in which a stepped outer surface is formed between the first step and the second step by fusion of the leg body and the tip by the temperature of the resin for forming the stepped portion;
(S40) in which the leg body to which the tip is welded is cooled and demolded;
A step S50 of removing the surplus portion formed on the leg body and the tip and performing a surface treatment; And
A step S60 of covering the outer surface of the stepped portion with a cap for enhancing comfort;
&Lt; / RTI >

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The method according to claim 1,
Wherein the cap is extrusion-molded into a synthetic resin material or a rubber material so as to form a hole having the same diameter as the outer surface of the stepped portion in the center, and the cap is manufactured to have the same length as the outer surface of the stepped portion .

The method of claim 3,
In the step S60, lubricant is applied to the outer surface of the stepped portion and the tip, and when the lubricant-applied tip is press-fitted into the hole of the cap, the cap is fitted to the outer surface of the tip while expanding in diameter, Wherein said method comprises the steps of:

The method according to claim 1,
In the step S20, the metal core is inserted into the ear portion of the leg body to be molded when the metal core is positioned in the cavity of the metal mold for molding the leg body, and the end portion of the leg body, And a tip formed on the one end is brought into contact with the tip.

A first mold part for forming a tip at one end of the metal core by an insert injection method; A supply part for clamping a tip of the metal core formed in the first mold part to supply the metal core to the second mold part; A second metal mold for injection-molding the leg body so as to insert the metal core supplied from the supply unit into the ear-piercing portion of the leg body, and allowing the leg body and the tip to be fusion- And a cut portion for removing and surface-treating the leg body and the surplus portion formed on the tip,
The first metal mold has a cavity for forming a tip and a fixing part which is provided at one side of the cavity and communicates with the cavity to fix the metal core so that one end of the metal core is located at the center of the cavity for forming the tip, , The cavity of the first mold part is formed with a step on the inner wall so that the first step is formed along the outer circumferential surface of the tip to be molded,
A metal core having a shape of a leg body and a metal core provided at one side of the cavity and communicating with the cavity to integrally form a tip with the metal core so as to be positioned at a center of one side of the cavity, Wherein the cavity of the second mold part is formed with a step on the inner wall so that the second step is formed along the outer circumferential surface of the formed leg body and the step difference of the inner wall is opposite to the other end of the metal core inserted into the leg body Of the eyeglass legs.

delete

The method according to claim 6,
Wherein the supply unit includes a clamper for clamping a tip formed on a metal core, a slider for installing the clamper at regular intervals, and a cylinder for transferring the slider back and forth.

delete

The method according to claim 6,
Further comprising a sealing portion for fitting a cap to an ear piece portion of the leg body.