KR20130064893A - Eyeglasses frames available outside of the injection molding mold manufacturing mold and how it - Google Patents

Abstract

PURPOSE: A mold for manufacturing an eyeglass frame and a molding method thereof are provided to prevent a surface-treated part from being exposed to the outside and to improve design and quality. CONSTITUTION: A mold for manufacturing an eyeglass frame and a molding method thereof comprises an upper mold(300), a lower mold(400), an injection machine, an internal shape core, and an eject pin. Insulation plates(303,403) are formed in the outside of the upper and lower molds. A core position maintaining device is arranged in the upper part of the lower mold. A rectangular ejection pin is formed on the center of the lower mold. Shape fixing blocks are formed in both sides of the rectangular ejection pin. Injection ports(210) are formed at parts where eyeglass legs are coupled.

Description

Eyeglasses frames available outside of the injection molding mold manufacturing mold and how it}

The present invention relates to a mold for manufacturing a spectacle frame and a mold method thereof, and more particularly, when the molten material is injected into the cavity of the mold in the injection molding machine, the injection port is configured to the outside to improve the post-processing process, and the surface treatment traces appear on the appearance. The present invention relates to a mold for manufacturing a spectacle frame, and a mold method thereof, capable of injection molding to the outside of the spectacle frame providing visual beauty without exposure.

In general, glasses are used not only for vision correction but also have a very important function that influences the impression of the wearer due to the glasses, so that a variety of products in the material and design of the product is produced by various manufacturing methods.

Briefly explaining the most basic structure of these glasses consists of a lens for correcting vision, a rim for fixing the lens and a bridge connecting a pair of rims, hinges for foldable glasses legs on the rim to improve the fit For this purpose, a nose support part is formed on the rim and the bridge, and an additional device such as an elastic member and an elastic device is generally used for the hinge part or the eyeglass leg.

On the other hand, the structure of the eyeglasses are generally referred to as the 'eyeglass frame' except for the lens, the most typical material for manufacturing such eyeglass frames are metal and synthetic resin material, the characteristics of the two materials in the manufacturing method or manufacturing process of the difference between the most The main difference is that metal materials are mainly used for mass production using presses, while synthetic resin materials are used for injection molding and mass production.

However, it is generally manufactured by injection molding in the process of manufacturing the spectacle frame, and typical injection molding methods include a preparatory step of preparing a material and a mold, heat melting the material with an injection machine, and then melting the material at high pressure into the mold. The injection hole is injected through the injection hole, but the injection hole is injected into a conventional nose support part, a molding step molded in a mold, an injection step of injecting a molded eyeglass frame, a surface treatment step of surface treatment of the injected eyeglass frame and a glossy layer; The spectacle frame is manufactured through a gloss layer forming step.

However, as described above, the molten material is injected into the cavity of the mold through the injection machine in the injection step, but since the injection hole is located in the nose support part, the eyeglass frame is completed after the molding step and the surface treatment step. Surface treatment of the protrusions formed on the nose support part to form a gloss layer, but the traces of the surface treatment of the protrusions on the nose support part is a situation that is considered to be a disadvantage in the industry.

First of all, prior arts disclose a synthetic resin manufactured by injection molding to have an angle to form curvature and a slight curvature of a lens curve and a bridge of a spectacle frame. The inner and outer diameter of the lens fixing rim which fixes the external frame of the spectacle frame and the spectacle lens using the cutting machine programmed with the injection disc material, and the edge, surface and cutting surface are polished to coat and polish the spectacle frame material. Surface treatment to form a layer and assembling each part to obtain a finished spectacle frame. The curvature and bends of each part required for the spectacle frame are formed at the time of injection molding, and the spectacle frame material is machined from the injection disc material It is cut off by.

Registration No. 10-1033875 (Special) The manufacturing method of heterogeneous spectacle frames includes the process of cutting the acetate-based three-dimensional pattern sheet into a predetermined design pattern, and the process of softening the three-dimensional pattern sheet cut according to the design pattern by softening agent; , After bonding the softened three-dimensional pattern sheet to a predetermined position of the pre-made polyamide eyeglass frame injection with an adhesive and then heating and pressing to bond the heterogeneous materials to restore the soft three-dimensional pattern sheet or hot melt fusion Bonding the heterogeneous materials and restoring the softened three-dimensional pattern sheet at the same time by performing any one of a process, a heat fusion process, a high frequency fusion process, and an ultrasonic fusion process, and the acetate solid pattern sheet and poly After drying the heterogeneous spectacle frames by amide injection, perform surface polishing in barrel. It comprises a step of conducting topcoating in step, the surface layer of different materials frames the surface is polished.

The above-mentioned conventional techniques are mainly used and are mainly based on methods of injection molding by forming an injection hole in a well-known nose support. As described above, when the injection frame is formed by injecting the nose support portion, the spectacle frame is narrow and difficult to process, causing a lot of time, which causes problems in mass production. In addition, even if the spectacle frame is manufactured through the surface treatment step, the surface treated traces are easily exposed to the appearance, which raises the problem of not being visually beautiful.

Accordingly, the injection mold using a conventional mold, but the injection hole is not configured in the normal nose support portion, the injection mold on the spectacle frame, but the surface of the projection surface treatment is not exposed to the appearance, there is no problem when viewed visually and wear It is necessary to develop a mold and a mold method that can be a beautiful product in the city, which shortens the time in producing a product and a mold method capable of mass production.

Therefore, it is an object of the present invention is not configured to the inlet portion of the conventional injection port, and configured to the outside of the cavity in which the spectacle frame is formed to facilitate the surface treatment work in the surface treatment step after the injection mold and to reduce the time and At the same time, the technical task is completed by focusing on providing products that improve the visually beautiful design and quality while preventing the exposed parts of the surface when the finished product is worn.

As a technical concept for achieving the above object, the upper mold 300 having the cavity 301 for forming the outer surface of the spectacle frame 500 and the lower mold 400 having the cavity 401 for forming the inner surface of the spectacle frame 500 are formed. Up and down by the inner shape core and the eject block 420 which flows for removing the molded product while forming a part where the lens is fitted and the injection machine 200 which injects the molten material through the injection hole 210 and is fitted. In the mold for manufacturing a spectacle frame composed of the eject eject pin,

Insulating plates 303 and 403 are respectively formed on the outside of the upper and lower molds 300 and 400,

The grooves penetrate the upper and lower molds 300 and 400, and heating cartridges 310 and 410 are fitted into the grooves, and are connected to a controller.

A core position holding device is configured in the upper side of the lower mold 400,

The square mold pin 405 and the shape extraction block 407 are formed on the inner central portion of the lower mold 400, respectively, and the injection hole 210 is formed as a part where the eyeglass legs are coupled. ,

In the spectacle frame manufacturing method using a mold plate in the above configuration,

A preparation step (1) having a material of the spectacle frame 500 and having a mold plate;

An injection step (2) of heating the material prepared by the injection machine (200) to inject the molten material and then injecting it into the injection hole (210);

A molding step (3) in which a high temperature is generated in the heating cartridges 310 and 410 in which the material injected into the mold plate is maintained and controlled by a controller to form a spectacle frame 500;

An injection step (4) of simultaneously injecting the molded spectacle frame (500) into the mold plate into a quadrangular pin (405) and a shape extraction block (407);

The surface of the injected spectacle frame 500 is treated, and the surface treatment and the gloss layer forming step (5) of forming a gloss layer,

The injection step 2 is injected into the injection hole 210 formed on one side or both sides of the cavity 301, 401 forming the eyeglass frame 500 through the nozzle 201 is connected to the injection machine 200 is injected It was intended to solve the above technical problem.

According to the mold for manufacturing a spectacle frame having an injection hole which can be injected in both directions according to the present invention and a mold method thereof, mass production is possible as the injection hole is formed on both sides of the cavity in which the spectacle frame is formed, thereby reducing the time of injection and molding. As the injection hole is formed on both sides in the surface treatment step, the projections are formed on both sides so that the surface can be conveniently processed. It is a beautiful and economically useful invention.

1 is an exploded plan view of the upper and lower molds of the present invention
Figure 2 is a cross-sectional view of the combination of the upper, lower mold of the present invention
3 is an enlarged view showing A of FIG. 1 and B of FIG. 2 of the present invention;
Figure 4 is an exploded cross-sectional view of the upper, lower mold of the present invention
5 is a view showing a preferred embodiment of the present invention
6 is a flow chart showing a preferred embodiment of the present invention
7 is a preparation step showing a preferred embodiment of the present invention
8 is an injection step showing a preferred embodiment of the present invention
9 is an injection step showing a preferred embodiment of the present invention
10 is a view showing a conventional upper and lower molds
11 is a view showing a conventional injection hole and injection method
12 is an enlarged view illustrating a of FIG. 10 and b of FIG. 11;

Typically, when molding the spectacle frame 500 is injected into the injection machine 200 through the injection hole 210 into the cavity (301, 401) configured in the upper, lower molds (300, 400) molding step (3 After the injection through the surface treatment step, one pair of glasses is completed by combining the glasses legs, nose support and lens. However, the injection hole 210 is injected into the injection molding machine 200 and then injected into the surface treatment step. In the conventional surface treatment step, the surface treatment step was performed using a machine tool such as a cutting tool, CNC, etc. Not only the part is narrow but also the surface-treated part is exposed to the appearance, so the workers spent a long time to do the neat work as much as possible, and there was a problem that was not visually beautiful.

The present invention generally does not constitute the inlet 200, which is formed in the nose support part, and is not exposed to the appearance when the finished product, the surface treatment work is easy to facilitate the mass production by shortening the overall work time To be described in more detail as configured,

As shown in FIG. 1, the upper mold 300 having the cavity 301 for forming the outer surface of the spectacle frame 500 and the lower mold 400 having the cavity 401 for forming the inner surface of the spectacle frame 500 are mutually connected. It is combined to form a mold. Conventionally used molds are two injection molds at a time, but in the present invention, four cavities 301 and 401 are configured in the upper and lower molds so that four molds can be injected in one process.

This will save time and make mass production easier. The outer surface of the upper and lower molds are configured with insulating plates 303 and 403 to block heat conducted to the injection machine 200 and to simultaneously block heat introduced from the outside.

The upper and lower molds 300 and 400 have grooves penetrated therein, and heating cartridges 310 and 410 are fitted into the penetrated grooves. The material injected through the injection hole 210 into the injection machine 200 is molded in the upper and lower molds 300 and 400, and at this time, the heating cartridge is inserted into the penetrated groove so as to maintain a proper temperature according to the characteristics of the materials. (310, 410) is to be fitted.

The heating cartridges 310 and 410 may be used in connection with a general electric device, a hot water supply device, a heat supply device, and the like. In the present invention, a controller is configured to maintain and control an appropriate temperature.

One side of the upper mold 300 is used when making a spectacle frame 500 such as polyetherimide, plastic, synthetic resin material with the inlet 210 formed in the upper, lower mold (300, 400) by heating and melting the material at high pressure The injection molding machine 200 which is made of a material to be melted and injected is configured.

Referring to FIG. 2 or 3, the injection hole 210 is configured on both sides of the cavities 301 and 401 formed inside the upper and lower molds 300 and 400. That is, it is configured on both sides of the outer circumferential surface on which the product is formed is to be injected to both sides of the cavity (301, 401) at the same time.

10 to 12, conventionally, the injection hole 40 is positioned in a portion that is coupled to the nose support portion to perform the injection. However, the above position is a narrow, difficult position when the surface treatment, and had a somewhat difficult face to the surface treatment, and the surface in the surface treatment step when one eyeglass frame 500 is completed by combining the lens legs and nose support and the lens There was a problem that the left traces are easily exposed to the appearance and not visually beautiful.

However, in the present invention, as shown in Figure 2 is to be injected while maintaining the pressure through the injection machine 200 to heat the material to an appropriate temperature by heat transfer, high pressure, steam, etc. inside the injection machine 200 molten state The upper and lower molds 300 and 400 are configured to inject stably molten material into the injection machine 200 through the injection holes 210 configured at both sides of the cavity 301 and 401.

In addition, as shown in FIG. 11, the injection hole 40 is conventionally used to inject only one direction to the nose support part used as the injection hole 40, but it takes a lot of time to inject the present invention. As shown in the Figures can be injected at the same time through the injection port 210 configured on both sides of the cavity (301, 401) in which the product is formed to reduce the time to inject to the injection machine 200 and at the same time increase the working efficiency Production is possible. As described above, the injection hole 210 is mainly configured on both sides of the cavity 301 and 401 where the product is formed, but may be configured on one side as shown in FIG. 5.

The lower mold 400 is connected to the eject block 420 is configured to help the injection, which is usually the most defective part in the industry is the injection process, when bending the molded eyeglass frame 500 is wrong when bent or damaged The defect rate was high in the molding process because of the problem and the internal shape core was not repositioned. Accordingly, in the present invention, as shown in FIG. 2 or 4, the quadrangular pin 405 is formed in the center of the lower mold 400, and the shape extraction block 407 is configured at both sides.

An upper surface of the lower mold 400 is configured with an inner surface core, but the inner surface of the core is a fixed bolt and the locking bolt is fixed in one direction and the locking bolt is fixed in one direction and the locking bolt is configured to a different height, the flow bolt Is fixed to the end of the fixing pin 408 flowing by the eject block 420.

In other words, as the eject block 420 flows, at the same time, the square pin 405, the shape extraction block 407, and the fixing pin 409 flow, and a molded eyeglass frame 500 is injected. The shape core is made to flow and is firstly locked by the fixing bolt, and the moving bolt is made to flow with the fixing pin 409 as it flows and is secondly caught by the flow bolt, and the inner shape core is turned in one direction. And the molded eyeglass frame 500 is willingly injected.

The injected spectacle frame 500 generally forms a surface treatment and a gloss layer. In the surface treatment, as shown in FIG. 12, an injection hole 40 is formed in the nose support part to form a protrusion formed in a narrow space. Surface treatment is performed using equipment such as cutting tools and CNC, but it is difficult to work because it is a narrow space. However, the present invention shows that the injection holes 210 are formed on both sides of the cavity 301 and 401 where the product is formed, as shown in FIG. It is constructed so that the projections on both sides of the frame 500 injected after molding have the advantage of surface treatment in a wide space, and the surface treatment traces when the glasses legs and the lens are combined are not exposed to the appearance and are visually beautiful. The product is complete.

The present invention described above can reduce the injection time due to the injection holes 210 formed on both sides of the cavity (301, 401) to form the outside of the product, the controller for maintaining and controlling the appropriate temperature in accordance with the injected material Is formed and is molded easily. During injection, the inner shape core is twisted by the fixing bolt and the floating bolt while being molded by the square pin 405, the shape extraction block 407, and the fixing pin 409. The spectacle frame 500 is easily injected, and the injection holes 210 formed on both sides can be injected simultaneously with both sides, thereby shortening the injection mold time and proceeding with convenient work, thereby improving work efficiency.

Referring to Figures 6 to 9 of the mold method of the present invention made of the important components as described above in detail,

In the method of manufacturing the spectacle frame 500, the preparation step (1) for preparing a mold and the spectacle frame 500 is usually performed, and the material is heated and melted in an injection machine, and then injected through the injection port 210 of the mold at a high pressure. Surface treatment of the injection step (2) and the molding step (3) in which the molten material is molded at an appropriate temperature in the mold cavities 301 and 401 of the mold, the injection step (4) of injecting the molded eyeglass frame, and the injected eyeglass frame. The glasses frame 500 is formed through the step (5) of forming a gloss layer to combine one pair of glasses with a pair of glasses, the nose support and the lens.

The present invention is composed largely into the preparation step (1), injection step (2), molding step (3), injection step (4), surface treatment step (5).

The preparation step (1) is a basic step in the injection mold method, and as an essential part, as shown in FIG. 7, the material having a material such as polyetherimide, plastic, synthetic resin, etc., which becomes the material of the spectacle frame 500, The lower mold (300, 400) is to be provided with a mold configured to be coupled to each other.

The injection step 2 is to inject the material into the injection hole 210 of the mold at high pressure after the material is heated and melted in the injection machine 200. Conventionally, the position of the injection hole 210 has been injected by being located at the portion that is coupled to the nose support part, and when the surface treatment is a narrow and difficult position, there was a somewhat difficult surface to the surface treatment, when combining the glasses legs and the lens after the surface treatment There was a problem of exposure to the appearance.

However, in the present invention, as shown in Figure 8 as a mold method having a configuration that can solve the above-described conventional problems while maintaining the pressure through the injection machine 200 to the injection port 210, both sides of the product is formed It is to be molded by heating to an appropriate temperature in the injection machine 200, such as heat transfer, high pressure, water vapor to make the material in a molten state and injects the melted material stably into the injection machine 200 through the injection port 210, the cavity Injection into the corner of (301, 401) stops the injection.

The injection hole 210 is not located in the nose support portion which is positioned as a normal injection hole 210, but is located on both sides of the cavity (301, 401) where the product is formed to be subjected to the injection step (2) surface treatment Even if the surface treated part is not exposed to the exterior at all, the trace is visible after the surface treatment, so when the glasses legs and lens are combined, they are not exposed to the exterior. Will be. In addition, it is possible to inject through the injection machine 200 to both sides of the outer side of the cavity (301, 401) where the product is formed so as to further shorten the time and at the same time can be injected into the four cavity (301, 401) Mass production is possible.

After the injection step (2) is finished, the molding step (3) is performed, and the heat insulating plates (303, 403) to the outer surface of the upper and lower molds block heat conducted to the injection machine (200) and at the same time from the outside to the inside. It is also shaped to block the conducted heat. Heat is generated by the heating cartridges 310 and 410 in the upper and lower molds 300 and 400, and the controller is connected to the heating cartridges 310 and 410 according to the characteristics of the material formed therein. By maintaining and controlling the appropriate temperature. In the present invention, the heating cartridge (310, 410) and the controller is configured.

After the molding step 3 is finished, the injection step 4 is performed. The injection step 4 is the eject block 420 flows and is injected as shown in FIG. 9, and when the eject block 420 configured in the lower mold 400 flows, the eject block 420 is connected to the eject block 420. The spectacle frame 500 formed by the four-mill pin 405 and the shape taking block 407 is injected, and the inner shape core is twisted in one direction by the fixing bolt and the floating bolt, and the spectacle frame 500 is easily As the injection rate is minimized, the cost reduction and the work efficiency are improved.

After the injection step 4 is finished, the surface treatment step and the gloss layer forming step 5 are performed. Surface treatment is done by tools, CNC machines, etc.

When injection is performed after molding the spectacle frame 500 using a general metal or synthetic resin, the surface is processed to produce a material, and then a coating work using a coating agent and a polishing agent which are commonly used to form a glossy layer is performed. It proceeds and smooths the rough surface and the protruding protrusions.

In the present invention as described above is formed on both sides of the cavity formed of the product in the inlet 210 is conventionally formed in the nose portion to the injection port 210 is located in the nose portion is formed in the process of processing the surface process of the projections narrow and difficult There was a problem that the progress time is delayed, but as the injection hole 210 is formed on both sides and formed, the projections can be easily performed quickly in a large space in the surface treatment step, and the time is shortened and the work efficiency is also increased.

As described above, the preparation step (1), the injection step (2), the molding step (3), the injection step (4), the surface treatment and the gloss layer shape step (5) sequentially after the process of the glasses and nose support and Glasses are constructed by combining lenses to be commercially available.

Thus, according to the mold and method for manufacturing a spectacle frame having an injection hole that can be injected in both directions of the present invention to be injection mold, the material melted in the injection machine is usually injected through the injection hole 210. The injection hole 210 is generally used. As the injection port 210 is configured on both sides, the injection time is shortened because the injection mold is formed on both sides where the product is not formed, and is located on the nose support where the product is formed. In order to be faster, according to this, mass production is possible, and after injection molding, the surface treatment step can be conveniently processed on both sides rather than in a narrow and difficult space. In addition, a trace is left in the process of surface treatment. In the present invention, since the surface treatment is performed on a portion that is coupled to the eyeglass leg, when exposed to the eyeglass leg, the body is not exposed at all. Satisfaction is high and economically very useful invention.

1: preparation step 2: injection step 3: molding step
4: injection step 5: surface treatment and gloss layer formation step
10: upper mold 11: cavity 20: lower mold
21: cavity 30: injection machine 31: nozzle
40: injection hole
200: injection machine 201: nozzle 210: injection hole
300: upper mold 301: cavity 303: insulation plate
310: heating cartridge
400: lower mold 401: cavity 403: insulation board
405: square mill pin 407: shape extraction block 409: fixing pin
410: heating cartridge 420: eject block 500: eyeglass frame

Claims (4)

The upper mold with a cavity for forming the outer surface of the spectacle frame, the lower mold with a cavity for forming the inner surface of the spectacle frame and the injection molding machine that injects the molten material through the injection port and the part where the lens is fitted are combined. In the mold for manufacturing spectacle frames composed of an inner surface core and a eject pin that flows up and down by an eject block,
Insulating plates 303 and 403 are respectively formed on the outside of the upper and lower molds 300 and 400,
The grooves penetrate the upper and lower molds 300 and 400, and heating cartridges 310 and 410 are fitted into the grooves, and are connected to a controller.
A core position holding device is configured in the upper side of the lower mold 400,
The quadrilateral pin 405 and the shape extraction block 407 are respectively formed at the inner central portion of the lower mold 400, and the inlet 210 is configured as a portion to which the glasses legs are coupled. Mold for manufacturing spectacle frames
The method of claim 1,
The injection hole 210 is a mold for manufacturing a spectacle frame capable of injection molding to the outside of the spectacle frame, characterized in that configured on one side or both sides of the portion that is coupled to the spectacles legs.
In the manufacturing method of the spectacle frame using a mold plate,
A preparatory step (1) having a material of the spectacle frame 500 and having a mold plate according to any one of claims 1 to 2;
An injection step (2) of heating the material prepared by the injection machine (200) to inject the molten material and then injecting it into the injection hole (210);
A molding step (3) in which a high temperature is generated in the heating cartridges 310 and 410 in which the material injected into the mold plate is maintained and controlled by a controller to form a spectacle frame 500;
An injection step (4) of simultaneously injecting the molded spectacle frame (500) into the mold plate into a quadrangular pin (405) and a shape extraction block (407);
Process the surface of the injected spectacle frame 500, the surface treatment to form a gloss layer and the gloss layer forming step (5); mold method for manufacturing a spectacle frame capable of injection molding to the outside of the spectacle frame
The method of claim 3, wherein
The injection step 2 is injected into the injection hole 210 formed on one side or both sides of the cavity 301, 401 forming the eyeglass frame 500 through the nozzle 201 is connected to the injection machine 200 is injected Mold method for manufacturing a spectacle frame capable of injection molding to the outside of the spectacle frame, characterized in that

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