KR20140009637A - Manufacturing process of spectacles frame using carbon fiber - Google Patents

Abstract

The invention relates to a manufacturing method for a spectacles frame using carbon fibers and, more specifically, to a manufacturing method for a spectacles frame using carbon fibers forming the spectacles frame in which carbon fibers laminated with a resin mold liquid by hot-compressing the carbon fibers including the resin mold liquid are solidified.

Description

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

The present invention relates to a method of manufacturing an eyeglass frame using carbon fiber, and more particularly, to a method of manufacturing an eyeglass frame using carbon fiber, And a method of manufacturing the used spectacle frame.

In general, an eyeglass frame made of a plastic material is advantageous in that it is light and has excellent flexibility, but its surface strength is so weak that it is easily damaged or damaged by friction or the like.

In the related art, the decorative layer and the coating layer having various patterns are sequentially formed by printing or the like on the surface in order to provide a feeling of beauty. However, since the decorative layer formed through printing is an aesthetic And the like.

On the other hand, the carbon sheet which is impregnated with the resin mold liquid and cured in the laminated state of the carbon fibers is not only visually very beautiful, but also has excellent strength.

By the way, the carbon sheet cured in a state in which carbon fibers are laminated by the resin mold liquid has a flat plate structure, and thus it is very difficult to utilize the spectacle frame manufactured at a predetermined curvature such as the front.

Therefore, it has been recognized that it is impossible to attach a carbon sheet having excellent strength or aesthetics to a spectacle frame in recent years, but recently, a carbon seat is used only in a spectacle frame without a curvature.

On the other hand, an eyeglass frame made of such a carbon sheet has a very high strength and can be made thin in thickness. However, since the brittleness is high, an external force exceeding a yield point causes an instant breakage.

If the eyeglass frame is broken by applying an external force equal to or higher than the yielding point, the broken eyeglass frame may cause injury to the user's face or the like, which is not desirable for safety.

Conventionally, the connection structure of the spectacle frame using the carbon sheet has a structure in which a plurality of fixing holes h1 are formed at the tip of the spectacle leg using the carbon sheet as shown in Fig. 1, and then the fixing pins P such as a rivet or a fixing bolt are individually inserted between the tip of the eyeglass legs and the hinge H so that the rivet H is inserted into the tip of the eyeglass leg, And the hinge is fixed by bolting or tucking, and the glasses legs to which the hinge is fixed are fixed to both ends of the hinged front.

However, since the connecting structure for fixing the hinge through riveting or bolting to the legs of the eyeglasses made of the carbon sheet is not easy to work, the productivity is remarkably decreased. Further, the rivet or the fixing bolt Is exposed on the surface of the carbon legs, resulting in a problem of poor appearance.

In particular, since the tip of the eyeglass leg is excessively compressed by the rivet or the fixing bolt during the riveting or the bolting process, if the repeated external force is applied to the wearing process, the eyeglass frame made of the carbon sheet is damaged or broken. Not preferred.

It is an object of the present invention, which is devised to overcome the above-described problems, to provide a method for molding a frame of an eyeglass frame having a shape formed by a carbon fiber, comprising the steps of inserting a reinforcing core into the frame of the frame to complement the brittleness of the carbon fiber, And to provide a method for manufacturing a spectacle frame using carbon fiber, which enables stable connection between the spectacle frame and the eyeglass leg.

The above object is achieved by the following constitutions provided in the present invention.

A method of manufacturing an eyeglass frame using carbon fiber according to the present invention includes:

A carbon fiber laminating step of laminating a carbon fiber containing a resin mold liquid in a molding space of the hot press mold; And a hot pressing step of hot pressing the carbon fibers laminated in the molding space to form an eyeglass body in which the elastic fibers laminated by the resin mold liquid are solidified, the method comprising the steps of:

In the carbon fiber lamination step, the reinforcing core of a metal material is inserted between the carbon fibers, and the reinforcing core is formed to be fixed in the spectacle body molded to be solidified by hot pressing.

Preferably, the hinge is formed integrally with the reinforcing core embedded in the spectacle body, and the spectacle legs and the front surface forming the spectacle body are connected to each other through a hinge integrally formed on the reinforcing core.

More preferably, the reinforcing shim inserted into the spectacle body is locally exposed on an inner wall of the spectacle body, and the exposed reinforcing shim is provided with a hinge for securing the hinge connection between the spectacle leg forming the spectacle body and the front hinge .

And the hinge is fixed to the surface of the exposed reinforcing shim through high frequency welding.

The carbon fiber laminated on the hot press mold is formed into a shape of an eyeglass body through an altar process and is formed into an eyeglass body through hot pressing or hot pressed in a state where it is uncut to form a CNC cutting process The outer shape is cut and formed into an eyeglass body.

When the reinforcing shim is inserted and fixed in the molded body of the eyeglass body by fixing the carbon fibers through the resin mold liquid cured as described above, the rigidity is reinforced by the reinforcing shim to prevent breakage of the glass body to which the carbon fiber is fixed, and It is possible to prevent such a problem that the broken eyeglasses body is separated by an excessive external force to cause injury to the wearer's face and the like.

If the hinge is integrally formed on the reinforcing pillar or the hinge is fixed on the surface of the reinforcing pillar that is locally exposed, the hinge can be easily installed without physical damage to the body of the eyeglass.

Particularly, when a hinge is not inserted directly into an eyeglass body such as a spectacle leg or a front which is formed through hot pressing, then a reinforcing shim whose surface is locally exposed in the body of the eyeglass is inserted and the hinge is fixed to the surface of the exposed reinforcing shim, Hot-pressing by hinges Since it is possible to install various hinges of various shapes or specifications through a single molding die without replacing the mold, it is possible to reduce the investment cost of the facility by manufacturing the frame.

In addition, as in the present invention, when the reinforcing core and the hinge fixed thereon are fixed by high-frequency fusion bonding, rapidity in manufacturing can be secured, while a large amount of heat is transferred to the hardened glass body, The occurrence of heat damage can be prevented.

In addition, according to the present invention, if a shielding block for sealing the surface of the reinforcing core laminated on the carbon fibers is disposed in the molding space, the hinge can be fused to the surface of the reinforcing core without removing the cured resin mold liquid on the surface of the reinforcing core And the shielding block is elastically brought into close contact with the surface of the reinforcing shim through the spring, so that the damage of the shielding block due to the clearance change can be prevented.

FIG. 1 is a view of fixing a hinge to a spectacle leg made of a conventional carbon material,
2 is an assembled state diagram showing the entire configuration of the spectacle frame manufactured according to the present invention,
3 is a flowchart sequentially showing a method of manufacturing the spectacle frame according to the present invention,
FIGS. 4 to 7 illustrate a process of manufacturing the eyeglass frame and the front using the method of manufacturing the eyeglass frame according to the present invention, and the glasses legs and the front frame manufactured through the process.

Hereinafter, a method for manufacturing an eyeglass frame using carbon fiber as a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a flowchart sequentially showing a method of manufacturing an eyeglass frame according to the present invention, and FIGS. 4 to 7 are views showing a manufacturing process of the eyeglass frame according to the present invention. It shows how to make eyeglass legs and fronts through the method, and the glasses legs and fronts made through them.

2, the carbon fibers 11 and 21 including the resin mold liquids 13 and 23 are laminated by impregnation or coating and then cured through hot pressing to form a pair of glass legs 20, The eyeglass body such as the front 10 is molded and the eyeglass legs 20 and the front 10 are connected to each other through the hinges 15, The eyeglass frame 1 has a hinge structure.

Eyeglass bodies such as the eyeglasses 20 and the front 10 formed by hot pressing the carbon fibers 11 and 21 and curing them through the resin mold liquids 13 and 23 have light weight and excellent strength. In the embodiment, the stacked carbon fibers 11 and 21 are inserted into the molding space 111 having a predetermined curvature and hot-pressed, so that the front 10 or the eyeglasses 20 and the like are formed by hot pressing. The glasses body has the same curvature as the curvature of the molding space (111).

In detail, in the present embodiment, as shown in FIGS. 4 to 7, the carbon fibers coated with the resin mold liquids 13 and 23 in the molding space 111 formed in the lower mold 110A of the hot pressing mold 100 ( 11 and 21 are laminated, and the carbon fibers 11 and 21 stacked in the molding space 111 are hot pressed through the upper mold 110B to stack the carbon fibers 11 and 21 in the molding space 111. According to the curvature, eyeglass bodies such as the carbon leg 20 and the front 10 molded into a curvature shape are molded.

The pressure and temperature conditions of the hot pressing of the carbon fibers 11 and 21 deposited in the molding space 111 of the hot press mold 100 may vary depending on the thickness of the laminated carbon fibers 11 and 21, It can be selected depending on the mixing amount of the mold liquids 13 and 23.

However, in the present embodiment, the carbon fibers 11 and 21 laminated at a pressure of 250 to 350 tons in the molding space 111 of the hot-press mold 100 having a temperature condition of 300 占 폚 are continuously supplied for 5 to 15 minutes .

When the carbon fibers 11 and 21 stacked in the molding space 111 are hot-pressed under these conditions, the laminated carbon fibers 11 and 21 are curved along the shape of the molding space 111 of the hot- The glass mold 10 is permanently fixed by the resin mold liquids 13 and 23 cured in the state of being fixed in the state of being fixed with a permanent curvature to form an eyeglass body such as a glass leg 20 or a front 10 made of carbon.

At this time, the carbon fibers 11 and 21, which are solidified by fixing with the resin mold liquids 13 and 23 and formed with a spectacle body such as a spectacle leg 20 or a front body 10 made of carbon, (13, 23) have a characteristic of being bent and bent like ordinary fibers in the uncured state, and solidified when cured through the resin mold liquids (13, 23) cured by hot pressing.

In the present invention, for example, epoxy resin mold liquids 13 and 23 which are not cured at a vacuum and a normal temperature state and rapidly cured when a high temperature heat is applied are adopted in the present invention.

At this time, uncut carbon fibers 11 and 21 are laminated on the molding space 111 of the hot-press mold 100 and hot pressed to form a carbon mold as shown in FIG. 7A, and the formed carbon mold is CNC It can be molded into a regularized eyeglass body such as a spectacle leg or a front as shown in FIG. 7B through a shape processing step such as cutting.

However, in the present invention, the carbon fiber (11, 21) cut in the shape of the glasses body, such as the glasses leg 20, the front 10, and the like in the molding space 111 of the hot pressing mold 100 When the carbon fibers 11 and 21 cut in the shape of the spectacle body are laminated and hot pressed, the front 10 or the leg 20, etc. without a shape processing process including CNC cutting or the like as shown in FIG. Can immediately shape the body of the glasses.

It is preferable that the molded glass body formed by hot-pressing the cut carbon fibers 11 and 21 is polished by removing the resin mold liquid adhered to the corners after the polishing process is performed.

On the other hand, the glasses body, such as the glasses leg 20 or the front 10 formed by curing the laminated carbon fibers (11, 21) has a light and excellent strength, but bent when excessively bent due to external force applied above the yield point May be locally broken.

Hinges 15 and 25 are fixed to the front end of the spectacle leg 20 forming the spectacle body and both ends of the front 10 so that the spectacles 15 and 25 are fixed to both ends of the front 10 through the hinges 15 and 25. [ The legs 20 form an eyeglass frame 1 connected by a hinge structure.

In the present invention, in order to reinforce the strength of the spectacle body to which the laminated carbon fibers 11 and 21 are fixed, and to provide a simple and stable installation of the hinges 15 and 25, The reinforcing shims 14 and 24 are inserted.

In the present embodiment, reinforcing padding 14 and 24 made of metal are laminated on the carbon fibers 11 and 21 laminated in the molding space 111 of the hot press mold 100, The reinforcing shims 14 and 24 are fixed to both ends of the front and rear ends of the glass leg 20 and the front 10, respectively.

At this time, the reinforcing padding 14, 24 may be formed as a single body crossing the spectacle body, or the divided reinforcing padding 14, 24 may be provided on the spectacle body.

Also, as illustrated in FIG. 5A, the hinges 15 and 25 may be integrally formed on the reinforcing cores 14 and 24, and the eyeglass body may have a hinged surface where the surface is locally exposed as shown in FIG. 5B. The hinges 15 and 25 may be fixed to the surfaces of the reinforcement cores 14 and 24 leaked locally through a post process.

The hinges 15 and 25 are not integrally formed in the reinforcing padding 14 and 24 as in the latter case but the reinforcing padding 14 and 24 are formed in the spectacle body in a state in which the surface is locally exposed, When the hinges 15 and 25 are fixed to the surfaces of the locally exposed reinforcing padding 14 and 24, the shape of the forming space of the hot press mold is modified according to the shape of the various hinges, The problem of modifying or changing the crimping tool is solved.

In this embodiment, the reinforcing core (11, 21) inserted between the carbon fibers 11, 21 is inserted into the molding space 111 in which the carbon fibers 11, 21 containing the resin mold liquids 13, 14, and 24, and a shielding block 112 for sealing the surface of the reinforcing padding 14, 24 is disposed.

At this time, the shielding block 112 is installed in the upper mold 110B forming the hot press mold 100 and has carbon fibers 11 and 21 stacked in the molding space 111 of the lower mold 110A When the upper mold 110B is hot-pressed, the shielding block 112 elastically urged by the spring 112a elastically moves up and down according to the phases of the reinforcing padding 14 and 24, Thereby sealing the surfaces of the reinforcing shims 14, 24.

Therefore, when the shielding block 112 is installed in the hot press mold 100 in the form of an elastic structure, the height of the reinforcing shims 14, 24 disposed on the carbon fibers 11, 21 stacked in the molding space 111 is irregular The shielding block 112 is resiliently lifted and lowered through the compression of the spring 112a as shown in FIGS. 4B and 6B, and is elastically brought into close contact with the surfaces of the reinforcing shims 14 and 24.

The laminated carbon fibers 11 and 21 are hot-pressed by a high temperature and a high pressure so that the glass leg 20 of a carbon material curved in accordance with the curvature of the molding space 111, (10) or the like.

At this time, the resin mold liquids 13 and 23 contained in the carbon fibers 11 and 21 and hardened through hot pressing by the shielding block 112 flow into the surfaces of the reinforcing shims 14 and 24, The reinforcing shims 14 and 24 are formed on the front surface 10 and the spectacle leg 20 of the carbon material so as to locally expose the surface.

5b, the front end surface is locally exposed and the rear half is entirely exposed so that a hinge 25 is formed on the front end surface of the exposed reinforcing padding 24 And a hinge 25 is formed on the inner side of the front end and a spectacle leg 20 having an end tip 26 is formed on the rear half do.

2, the hinge 15 is provided at both ends of the exposed reinforcing shim 14 and the hinge 15 is provided at both ends of the reinforcing shim 14, Thereby forming a fixed front 10.

At this time, the hinges 15 and 25 are fixed to the reinforcing shims 14 and 24 provided on the body of the glasses such as the front 10 and the eyeglass leg 20 through various connecting methods such as bonding, molding, soldering, fusion, .

In the present invention, titanium reinforcing padding 14, 24, for example, is fixed to the glass leg 20 and the front body 10, respectively, and a titanium material is used for the surface of the reinforcing padding 14, After the manufactured hinges 15 and 25 are brought into close contact with each other, a high frequency is applied so that they are mutually fusion bonded through instant heating between them.

When the hinges 15 and 25 are fixed to the surfaces of the reinforcing shims 14 and 24 through the high-frequency fusion welding, the hinges are fixed by the instantaneous heating, Heat damage is prevented, and automation, stability, and promptness due to fixing are secured.

Of course, instead of reinforcing shims made of a titanium material having light weight and excellent flexibility, reinforcing shims made of stainless steel or the like are fixed to a front surface or a glass leg of a carbon material, and the reinforcing shims It is also possible to fix the hinge by welding.

When the reinforcing padding 14 or 24 is inserted into the spectacle body such as the eyeglass leg 20 or the front 10 molded by hot pressing as in the present invention, The broken glass body can be prevented from being broken even if an external force equal to or higher than the yielding point is applied. In addition, since the broken glass body is not separated from each other but is fixed by the reinforcing core, The problem of hurting the face can be solved.

The hinges 15 and 25 can be easily formed on both ends of the front end of the spectacle leg 20 and the front end 10 constituting the spectacle body through the reinforcing shims 14 and 24, It is possible to solve the problem that the appearance of the body is damaged and the durability is weakened and the appearance of the eyeglass frame is not damaged by the installation of the hinge.

On the other hand, the carbon fibers 11 and 21 forming the eyeglass frame 1 according to the present embodiment are limited to the original color of graphite, and have a limitation that it is difficult to produce various colors because they are made of graphite as a main material.

In consideration of this, in this embodiment, glass fibers 12 and 22 having stable flexibility and coloring property are laminated on the carbon fibers 11 and 21 laminated in the molding space 111, and flexibility and colorability The glass legs 20 and the front 10, which are made of carbon fibers 12, 22 having a fixed shape, are formed.

At this time, resin mold liquids 13 and 23 of the same material contained in the carbon fibers 11 and 21 are coated or impregnated into the glass fibers 12 and 22, The laminated glass fibers 12 and 22 are fixed together through resin mold liquids 13 and 23 of the same material.

The glass legs 20 and the front 10 of the carbon material molded by fixing the glass fibers 12 and 22 in this way are made of glass fibers 12 and 22 fixed to the carbon fibers 11 and 21, And coloring properties.

Particularly, since the carbon fibers 11 and 21 and the glass fibers 12 and 22 are fixed through the resin mold liquids 13 and 23 of the same material, even if repetitive impact or twisting is applied to the wear process, they are peeled off The phenomenon is prevented.

In addition, in the present embodiment, in inserting the lens 17 into the lens mounting hole 16 of the manufactured spectacle frame 1, an edge of the lens 17 is made of an elastic material such as silicone or rubber So that a buffer structure is formed between the inner diameter of the lens mounting hole 16 and the outer diameter of the lens 17, which face each other.

Referring to FIG. 1, a V-shaped mounting groove 17a is formed at the edge of the lens 17, and a buffer ring 18 is inserted into the V-shaped mounting groove 17a.

When the buffer structure is formed between the lens mounting hole 16 and the lens 17 of the spectacle frame 1 through the buffer rings 18 as described above, the action force generated in the process of twisting the spectacle frame 1 is transmitted to the lens 17 The damage to the lens 17 due to the twist of the spectacle frame 1 can be prevented.

1. Frames
10. Front 11. Carbon fiber
12. Glass fiber 13. Resin mold liquid
14. Reinforcement core 15. Hinge
16. Lens mounting ball 17. Lens
18. Buffer ring
20. Glasses bridge 21. Carbon fiber
22. Glass fiber 23. Resin mold liquid
24. Reinforcement shim 25. Hinges
26. End Tip
100. Hot pressing mold
110A. Lower mold 110B. avoirdupois
111. Molding space 112. Shielding block
112a. spring

Claims (6)

A carbon fiber laminating step of laminating a carbon fiber containing a resin mold liquid in a molding space of the hot press mold; And a hot pressing step of hot pressing the carbon fibers laminated in the molding space to form an eyeglass body in which the elastic fibers laminated by the resin mold liquid are solidified, the method comprising the steps of:
The method of manufacturing a spectacle frame using carbon fiber, characterized in that the reinforcing core of the metal material is inserted between the carbon fibers in the carbon fiber laminating step, so that the reinforcing core is fixed in the eyeglass body molded to be solidified by hot pressing. [2] The apparatus according to claim 1, wherein the hinge is formed integrally with the reinforcing core fixed to the spectacle body, and the spectacle legs and the front which form the spectacle body are connected to each other through hinges integrally formed on the reinforcing core Wherein the method comprises the steps of: [3] The apparatus according to claim 1, wherein the reinforcing shim inserted in the spectacle body is locally exposed on the inner wall of the spectacle body, and the exposed reinforcing shim has a hinge for securing the hinge connection between the spectacle- Wherein the carbon fiber is made of a carbon fiber. [4] The method according to claim 3, wherein the hinge is fixed to the surface of the locally exposed reinforcing shim through high frequency welding. The method according to claim 1, wherein the carbon fiber laminated on the hot press mold is formed into a shape of an eyeglass body through an altar process, and is formed into an eyeglass body through hot pressing. 2. The method of claim 1, wherein the carbon fibers laminated on the hot-press mold are thermally pressed to form a mold in a state in which the carbon fibers are uncovered, and then the outer shape is cut through a CNC cutting process to be molded into an eyeglass body. Method for manufacturing eyeglass frames using fibers.

Images