KR101106911B1 - Automated manufacturing method of optical frame - Google Patents

Abstract

PURPOSE: An automatic glass frame manufacturing process is provided to omit an additional process for processing the nose pad of a glass frame by bonding a height-determined type nose pad to a sheet for the glass frame and processing the outer diameter and the inner diameter of the glass frame and the outer side and the inner side of the nose pad. CONSTITUTION: The shape of a height direction with respect to the nose pad of a glass frame is completely determined to manufacture the high-determined type nose pad of a glass frame. The nose pad is combined with the nose pad position of a sheet(100). A groove is formed in the sheet, and the nose pad is combined with the groove. The sheet is processed into a glass frame shape by processing the outer side(210a) and the inner side(210b) of the nose pad.

Description

AUTOMATTED MANUFACTURING METHOD OF OPTICAL FRAME}

The present invention relates to a method for manufacturing a spectacle frame, and more particularly to a method for manufacturing a spectacle frame capable of two-dimensional processing of the spectacle frame by manufacturing and attaching the height of the eyeglass nose support in advance.

Glasses are used as a major fashion accessory that expresses the user's personality in addition to correcting eyesight. Usually, it can be classified as synthetic resin material or metal material according to its material.

In the case of the synthetic resin glasses, the first thing to think about is a method of manufacturing by injection molding the spectacle frame. This has the advantage of supplying a variety of inexpensive eyeglass frames by easily manufactured eyeglass frames through injection molding.

However, even in the case of synthetic eyeglass frames, in the case of high-quality products, a method of cutting and processing "various types of synthetic resin sheet" (hereinafter referred to as "synthetic resin sheet" or "sheet" in the present invention) in the form of eyeglass frames has been used. As the degree of preference increases, the demand for cut-processed eyeglasses continues to increase.

The present invention relates to a spectacle frame (hereinafter referred to as "synthetic resin plate spectacle frame" in the present invention) by cutting the synthetic resin sheet material.

Until now, the method of cutting the synthetic resin plate material in the form of eyeglass frames has been manufactured by a manual method in which the operator processes the curvature of the lens curve and the eyeglass nose support for each process by dividing the synthetic resin material into several processes.

This prior art is described in FIGS. 7 and 8. In summary, in the case of cutting the synthetic resin plate in the form of eyeglass frames, the shape of the eyeglass nose support part of the spectacle frame is obtained by cutting the shape of the spectacle frame from the synthetic resin plate material having a certain thickness, and then the nose support part of the rectangular parallelepiped It can be said that it goes through the process of attaching it to the desired shape.

Therefore, all parts had to be manufactured by hand, and accordingly, the industry itself was transferred in search of low labor costs to latecomers such as China.

To overcome this problem, efforts have been made for decades to make the eyewear industry competitive in Korea by preserving labor costs through automation.

There was a processing method created by such an automatic effort, but the method was obtained by cutting the shape of the spectacle frame from synthetic resin board, and then attaching the nose support part of the rectangular parallelepiped to the eyeglass nose part, and then forming the curvature of the eyeglass nose support. It is difficult to switch to an automated process due to the disadvantage that the expensive three-dimensional machine must be used as the height, that is, three-dimensional machining must be used, and the machining time is more than three hours per one.

In order to solve the above problems, an object of the present invention is to develop a synthetic resin plate spectacle frame automation manufacturing method that is substantially applicable and cost competitive.

To this end, in the present invention, prior to inputting all the height-related elements into the automation process, the first step is to change the three-dimensional machining process to a two-dimensional machining process by eliminating the process of machining the height change. do.

It is an object of the present invention to develop a synthetic resin plate glasses frame automatic manufacturing method that is practically applicable and competitive in price.

As a result of a long study for this purpose, the problem of the automated process that had been pushed in the past had to be essential to three-dimensional machining, so it takes a long time and the manufacturing machine was expensive because it was a machine capable of three-dimensional machining. Concentrating efforts, the present invention was finally completed.

The first improvement of the present invention is to work first before putting all the changing factors related to the height for the manufacture of the spectacle frame in the automatic machining process, eliminating the process of machining the change of the height in the automatic machining process two-dimensional process It was to change the process into red.

The part related to the height may be mentioned by first adjusting the height of the synthetic resin sheet from the beginning.

In other words, the synthetic resin sheet has a part that is thinly processed, but a significant part is to purchase and use the one that is adjusted to the required height from the beginning so that it can be used without cutting the thickness.

Next, the height part is related to the nose rest. This means that the shape of the eyeglass nose support is pre-fabricated and glued first to the place where the nose support should finally be placed on the synthetic resin sheet before inputting it into the automatic processing process. There is no need for machining.

This may be called a completely different method of cutting the shape of the spectacle frame first and then attaching a piece of plastic to the nose support before the processing.

The second improvement is that the synthetic resin film (hereinafter referred to as "adhesive film" in the present invention) coated on one side of the synthetic resin sheet for the spectacle frame has high flexibility, one surface is smooth, and the other adhesive is attached so that it can be easily detached after processing. The synthetic resin board is used.

The adhesive film is necessary for cutting a plurality of spectacle frames from one synthetic resin sheet.

The smooth side of the adhesive film is necessary to fix the synthetic resin sheet through suction of air during processing.

In addition, since the adhesive film has a certain thickness, even if the synthetic resin sheet is cut into the shape of the eyeglass frame during the automatic process, only a part of the adhesive film is cut so that the eyeglass frame does not deviate during processing, thereby helping the automatic process proceed smoothly. Can give

And the adhesive film is to be removed after the automatic process is completed.

In summary, the manufacturing method of the spectacle frame according to the embodiments of the present invention comprises the steps of manufacturing a height-determinable spectacle nose support, including processing until the final step of determining the shape of the height direction of the spectacle nose rest, the height determined spectacle nose rest Coupling to a nose rest position on a sheet, and processing the sheet into a spectacle frame shape,

The height-determining glasses nose rest may be characterized in that the height is determined in the step of manufacturing the glasses nose rest.

The height-determinable spectacle nose support may process the inner and outer surfaces of the height-determinable spectacle nose rest in the step of processing the sheet into a spectacle frame shape.

Coupling the spectacles nose support with a sheet may include forming a groove in the sheet and adhering to the height-determinable spectacles nose support.

The sheet may have a portion that is not processed in the process of processing the sheet into the shape of the spectacle frame, and the adhesive film may be coupled to a surface facing the surface that is coupled to the eyeglass nose support.

The adhesive film may have a thickness of 0.1 to 4.0 mm.

The thickness of the adhesive film may not be cut during the process of processing the sheet into a spectacle frame shape.

According to embodiments of the present invention, a method of manufacturing an eyeglass frame may include: polishing the eyeglass frame; And forming a hinge fixing groove in the spectacle frame.

The first effect of the present invention is that the synthetic resin glass frame can be produced by an automatic process substantially. This is done by putting all the changing factors related to the height in the manufacturing process of the spectacle frame into the automation process first, and by changing the three-dimensional processing process to the two-dimensional processing process by eliminating the process of processing the height change in the automation process. In the case of the actual three-dimensional processing process, it took more than three hours to operate one spectacle frame with a synthetic resin three-dimensional processing machine, and in two-dimensional processing, it can be processed within 10 minutes.

Secondly, the effect of the present invention is that while inventing this process, the inventors have invented a synthetic resin plate material on which one side of the adhesive film which is optimized can be applied to the automated process.

Third, the effect of the present invention is that the spectacle frame is operated more precisely by an automatic machine, thereby reducing the additional post-processing process when relying on manual operation.

Fourth, the effect of the present invention is that the defect rate of the spectacle frame is reduced compared to the case of relying on manual work by elaborate and constant work, and the quality is improved, and the labor cost can be reduced by mechanization and automation. It is significantly lower.

Specifically comparing the conventional manual process and the automatic process according to the present invention is as follows.

In the conventional manual process, the synthetic resin material is cut, and then the material of the eyeglass nose support is attached to the eyeglass frame, and the inner and outer surfaces of the eyeglass nose support are processed while processing the inner and outer diameters of the eyeglass frame. Because of the additional height machining, the machining time was relatively long.

In the automatic process according to the present invention, after attaching the height-determinable spectacle nose support to the sheet, the sheet is cut into a spectacle frame shape, and the inner and outer diameters are processed.

Since the automatic process goes through a separate manufacturing process to determine the height of the eyeglass nose support in advance, the manufacturing time can be significantly shortened because the height of the eyeglass nose support is not reprocessed in the process of processing the eyeglass frame. The automatic process according to the present invention takes 6 to 7 minutes as compared to the three hours required to produce the process.

1 and 2 are views showing a height-determined spectacle nose rest according to embodiments of the present invention.
Figure 3 is a real picture of the height-determined glasses nose support according to embodiments of the present invention.
Figure 4 is a view of a height-determinable spectacle nose support is attached to the sheet according to embodiments of the present invention, Figure 5 is a real picture of the figure.
6 is a view showing a step of cutting a sheet into a spectacle frame shape according to embodiments of the present invention and a cross-sectional view of the cut sheet and the adhesive film.
7 is a view showing a processing step of the conventional eyeglass nose support, Figure 8 is a real picture of the eyeglass frame for processing the eyeglass nose support according to the conventional manner.
9 is a view showing a step of processing the eyeglass nose support according to embodiments of the present invention.
10A and 10B are views illustrating a blade for processing the eyeglass nose support according to embodiments of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the following examples. The objects, features and advantages of the present invention will be readily understood through the following examples. The invention is not limited to the embodiments described herein, but may be embodied in other forms. The embodiments introduced herein are provided so that the disclosure may be made thorough and complete, and the spirit of the present invention may be sufficiently delivered to those skilled in the art. Therefore, the present invention should not be limited by the following examples.

As used herein, the spectacles nose stand refers to a pair of accessories protruding from the center of the spectacle frame 200, which is used to prevent the spectacle frame 200 from contacting the face when wearing the spectacles. The height of the eyeglass nose support may be used to mean up to the most protruding portion of the eyeglass nose support based on the eyeglass frame. The higher the height of the eyeglass nose support, the farther the distance between the spectacle frame and the face, and the lower the height of the eyeglass nose support, the closer the distance between the eyeglass frame and the face.

In the method of manufacturing the spectacle frame according to the embodiments of the present invention, when trimming the shape of the lens fixing rim 201 and the spectacle nose support of the spectacle frame 200, the height of the spectacle nose support may not be processed.

As used herein, the height-determined spectacles nose support 210 is a predetermined height of the eyeglass nose support before being attached to the sheet 100, the height-determined spectacles nose support 210 is to process the inner and outer diameter of the spectacle frame The eyeglass noserest has been processed to the final stage before all the parts related to the height of the eyeglass noserest.

Referring to FIG. 1, the step of finally determining the height of the eyeglass nose support means that processing is already completed in the y-axis direction of the eyeglass nose support before attaching the eyeglass nose support to a sheet.

The meaning of "processed to the final stage" is in principle not included in the post-processing, such as polishing or polishing, but does not exclude the inclusion if necessary.

The meaning of "the processing of all parts related to the height until the final stage" does not include the presence or absence of processing on the side, and the parts not related to the height may be variously selected according to the selection of the processor.

The height of the height-determinable spectacles nose stand 210 may be attached to the sheet 100 which is a material of the spectacle frame after predetermined.

The height-determining glasses nose rest 210 may be determined according to the height of the user's nose and the shape of the spectacle frame before being attached to the sheet 100, preferably may have a height of 0.5cm to 1.3cm.

 The height-determined spectacles nose rest 210 may have a curved surface facing the surface to which the sheet 100 is attached. The shape of the height-determinable spectacle nose support 210 is not particularly limited as long as the height of the spectacle nose support is not finally processed while the inner and outer diameters of the lens fixing rim are further processed.

1 and 2 are views showing the height-determined glasses nose rest 210 according to embodiments of the present invention.

1 and 2, the height-determinable spectacle nose support 210 may be manufactured to have various shapes in which the surface facing the sheet 100 faces the sheet 100.

3 is a real picture of the height-determined glasses nose support 210 according to embodiments of the present invention.

The height-determining glasses nose stand can be produced in a desired shape by injection molding or cutting.

The height-determining spectacle nose rest 210 may be attached to a sheet 100 for manufacturing the spectacle frame 200, and the sheet 100 may preferably include acetate.

The sheet 100 is a term widely used in the eyeglass manufacturing industry to be a material of the spectacle frame 200.

Glasses frame manufacturing method according to embodiments of the present invention may include the step of combining the height-determined glasses nose rest 210.

4 is a view showing a state in which the height-determinable spectacles nose support 210 is adhered to the sheet 100 according to embodiments of the present invention, Figure 5 is a real picture of the figure.

The manner in which the sheet 100 and the height-determinable spectacles nose support 210 are coupled is to indicate a point where the height-determinable spectacles nose support 210 may be attached to the sheet 100 and to attach it to the point exactly, the height. Forming a protrusion on the crystal glasses nose rest 210 may include a method such as fitting to the sheet 100.

The above methods are just examples, and may include all types of methods in which the height-determinable spectacle nose support 210 and the sheet 100 can be combined.

The spectacle frame manufacturing method according to embodiments of the present invention may further include cutting the sheet 100 to which the height-determinable spectacle nose support 210 is attached to form a spectacle frame 200.

After the process of cutting the sheet 100 into the shape of the spectacle frame 200, the outer diameter and the inner diameter of the lens fixing rim 201 may be processed by a curve molding machine.

The sheet 100 may be attached to the adhesive film 110 on the surface facing the surface to which the height-determinable glasses nose support 210 is bonded.

The adhesive film 110 refers to a synthetic resin film having high flexibility, one surface is smooth, and the other adhesive is applied.

The adhesive film 110 may preferably have a thickness of 0.1mm to 4.0mm.

The adhesive film 110 adsorbs the synthetic resin plate material 100 to the adsorber, thereby increasing the fixing force of the sheet 100 in the process of cutting the sheet 100 and adsorbing the sheet 100 to help a stable operation. Adsorption power can be increased when adsorbing.

That is, the adhesive film 110 may help to enable precise processing by firmly fixing the sheet 100 in the process of cutting the sheet 100 into the shape of the spectacle frame 200 to reduce shaking or vibration. .

The adhesive film 110 may also serve to prevent scratches that may occur on the sheet 100 during the processing.

As the machine used in the present invention, a machine capable of processing synthetic resin in two dimensions can be used. Therefore, in the case of a machine capable of three-dimensional processing can be a two-dimensional processing it can be possible to manufacture a spectacle frame according to an embodiment of the present invention.

In the process of the present invention was attempted to automate through the automatic machine in the state that the nose support of the conventional method as shown in FIG. The machine used at this time was a machine capable of three-dimensional machining work called VX460 of Hyundai Wia. This machine is a model with one machining axis. In this process, essential 3D modeling was performed first, and then the spectacle frame was manufactured.

Working on three models, in this case, the working time for making eyeglass frames was as follows.

The difference in the working time is considered to be due to the difference in the three-dimensional modeling because the shape of the spectacle frame is not uniform for each model.

Model 1 Model 2 Model 3 189 minutes 176 minutes 195 minutes

In order to apply the contents of the present application, a commercially available CNC machine was used. (M's Super Series) The processing axis was attached to five pieces and a synthetic resin sheet capable of processing seven eyeglass frames with one sheet. Was used.

Of course, a synthetic resin plate with a height-determining spectacles nose support was used to enable two-dimensional processing. In this process, two-dimensional modeling was performed first, which was much simpler and less expensive than three-dimensional modeling. Many experiments were conducted. Among them, three typical test results were shown, and it took about 40 minutes to make 35 eyeglasses as shown in the table below.

Model 1 ' Model 2 ' Model 3 ' 43 minutes / 35 pieces 46 minutes / 35 pieces 42 minutes / 35 pieces

In the present invention, the "method of manufacturing a two-dimensional automated eyeglass frame" refers to the process of manufacturing the synthetic resin plate eyeglass frame as described above, before putting all the changing factors related to the height into the automated process. By the process of processing the change in height means a method of manufacturing a synthetic resin plate spectacle frame that changed the conventional three-dimensional processing process was required to a two-dimensional processing process.

Since the height-determining type of eyeglass nose support 210 is a state in which the height of the eyeglass nose support is determined, the two-dimensional machining is performed on the height of the outer surface 210a and the inner surface 210b of the eyeglass nose support. Only processing is done further.

Compared to the three-dimensional machining, the two-dimensional machining may be lower than the three-dimensional machining, and thus the production cost may be lowered compared to the three-dimensional machining.

6 is a view showing a step of cutting the sheet 100 in the shape of the spectacle frame 200 according to the embodiments of the present invention and a cross-sectional view of the cut sheet 100 and the synthetic film (110).

Referring to FIG. 6, the synthetic resin film 110 attached to the sheet 100 is not cut together with the sheet 100 in the cutting process, and is attached to the sheet 100 while forming a groove having a depth of 0.2 to 0.3 mm. It is done.

In the process of processing the outer diameter and the inner diameter of the lens fixing rim 201, the processing of the height-determinable spectacle nose support 210 may also be made.

7 is a view showing a processing step of the conventional eyeglass nose support, Figure 8 is a real picture for processing the eyeglass nose support according to the conventional manner.

Referring to FIGS. 7 and 8, in the process of processing a conventional spectacle frame, the spectacle nose support is processed according to the curvature of the inner diameter while trimming the inner diameter. The height portion of the spectacles nose rest was processed.

In the processing of the inner and outer diameters of the glasses according to the embodiments of the present invention, the processing of the height of the glasses nose support of the glasses frame 200 to which the height-determining glasses nose support 210 is attached may be omitted.

9 is a view showing a step of processing the height-determinable glasses nose rest 210 according to embodiments of the present invention.

Referring to Figure 9, the spectacle frame manufacturing method according to the embodiments of the present invention because only the outer surface (210a) and the inner surface (210b) of the height-determined glasses nose support according to the inner diameter and outer diameter of the spectacle frame is a two-dimensional processing Possible, mechanization and automation of the spectacle frame 200 manufacturing process may be possible.

As used herein, the outer surface 210a of the eyeglass nose support may be used to mean a surface facing the lens nose of the eyeglass frame 200 in the lens direction, and the inner surface 210b of the eyeglass nose support. ) May be used to mean a surface where the eyeglass nose support is in contact with the nose of the face.

The outer diameter of the spectacle frame 200 may be processed to form the overall shape of the spectacle frame 200, and the inner diameter of the spectacle frame 200 may be processed to create a space into which a lens may be fitted.

The outer surface 210a of the eyeglass nose support may be processed according to the curvature of the inner diameter.

The outer surface 210a and the inner surface 210b of the nose nose support may have a shape inclined toward the lens of the spectacle frame 200 to allow the glasses to be stably seated on the nose.

10A and 10B are views illustrating a blade for processing a height-determinable spectacle nose support 210 according to embodiments of the present invention.

10A and 10B, a curved blade may be used to process the outer side 210a and the inner side 210b of the height-determinable spectacle nose support 210. In order to process the outer surface 210a of the eyeglass nose support, it is preferable that the lower part of the blade has a convex shape to the outside, and in order to process the inner surface 210b of the eyeglass nose support, the lower part of the blade is concave inwardly. It is preferable to have.

The curved blade may process the height-determining glasses nose support 210 while rotating at a high speed, preferably has a rotation speed of 30,000rpm.

Conventionally, since the three-dimensional processing process is required to make the round shape of the nose pads of the eyeglass, manual processing is required for a long time or expensive equipment is required.

Eyeglass frame manufacturing method according to the embodiments of the present invention can be processed by moving and rotating the blade in the transverse direction and the longitudinal direction to process the height-determined spectacle nose rest 210, the two-dimensional processing process, mechanized operation The machining time can be shortened.

After processing the height-determinable spectacle nose support 210, it may include the step of forming a groove in which the lens is inserted and fixed inside the lens fixing rim 201.

Glasses frame manufacturing method according to embodiments of the present invention may further include forming a hinge fixing groove 202.

The hinge fixing groove 202 may be fixed to the hinge to the eyeglass frame 200 to be pivotally connected.

The spectacle frame 200 is to cut the lens fixing rim 201 and the bridge 203 of the spectacle frame 200, except for the range within a radius of 2mm relative to the hinge fixing groove 202 to reduce the pressure applied to the face when wearing glasses. Producing may include steps.

The spectacle frame manufacturing method according to embodiments of the present invention may further include polishing the spectacle frame and forming a gloss. Polishing the spectacle frame may include a step of smoothly processing the surface of the cut spectacle frame 200 in a conventional spectacle manufacturing process.

Hereinafter, specific embodiments of the present invention have been described. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

100: seat 101: seating groove
110: adhesive film 200: glasses frame
201: Lens fixing 202: Hinge fixing groove
203: Bridge 210: Height determined glasses nose rest
210a: outer surface of eyeglass nose support 210b: inner surface of eyeglass nose support

Claims (7)

In the manufacturing method of the spectacle frame,
Manufacturing a height-determinable spectacle nose support comprising processing up to a final step of determining a shape in the height direction of the spectacle nose support;
Coupling the height-determining spectacles nose rest to a nose rest position on a sheet; and
Processing the sheet into an eyeglass frame shape,
The height-determined glasses nose rest is a two-dimensional automated glasses frame manufacturing method characterized in that the height is determined in the step of manufacturing the eyeglass nose rest.
The method of claim 1,
The height-determinable spectacle nose support is a two-dimensional automated eyeglass frame manufacturing method characterized in that for processing the inner surface and the outer surface of the height-determinable spectacle nose rest in the process of processing the sheet into a spectacle frame shape.
The method of claim 1,
The step of coupling the eyeglass nose support with a sheet comprises forming a groove in the sheet and adhering to the height-determinable eyeglass nose support.
The method according to any one of claims 1 to 3,
The sheet has a portion that is not processed in the process of processing the sheet into the shape of the spectacle frame, the method of manufacturing a two-dimensional automated spectacle frame, characterized in that the adhesive film is coupled to the surface facing the surface coupled with the nose pad.
The method of claim 4, wherein
Method for producing a two-dimensional automated glasses frame, characterized in that the thickness of the adhesive film is 0.1 ~ 4.0mm.
The method of claim 5, wherein
Method of manufacturing a two-dimensional automated eyeglass frame, characterized in that not all of the thickness of the adhesive film is cut during the processing of the sheet to the shape of the eyeglass frame.
The method according to any one of claims 1 to 3,
Polishing the eyeglass frame; and
Forming a hinge fixing groove on the spectacle frame further comprises a two-dimensional automated spectacle frame manufacturing method.

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