KR101935893B1 - Core Mold Manufacturing System for Manufacturing the Contact-Lens - Google Patents

Abstract

In the present invention, since the surface shape and roughness of an injection molded article core machining area are uniformly measured on a contact lens using a super-precise optical measuring system after processing a metal core mold, a core mold for producing good products of contact lenses and productivity A molding machine for surface-processing a concave or convex spherical shape surface corresponding to one end of the core mold so as to provide an efficient manufacturing process; And a core mold surface measuring device for measuring a surface shape and a surface roughness of the shape surface while being in-line supplied to the core mold processed from the mold processing machine and being in contact with the shape surface of the core mold, The surface measuring machine includes a measuring body having a work support on an upper part thereof, a jig part fixedly mounted on a work supporting part of the measuring body and supporting and fixing a core mold on the upper part thereof, There is provided a core mold manufacturing system for manufacturing a contact lens, which incorporates an ultra-precise optical measuring system including a detecting portion for contacting a shape surface of a core mold and measuring a surface shape and a surface roughness.

Description

Technical Field [0001] The present invention relates to a core mold manufacturing system for manufacturing a contact lens,

The present invention relates to a core mold manufacturing system for manufacturing a contact lens using an ultra-precise optical measuring system, and more particularly, to a method of manufacturing a core mold manufacturing system for manufacturing a contact lens, The present invention relates to a core mold manufacturing system for manufacturing contact lenses, which incorporates an ultra-precise optical measuring system capable of efficiently manufacturing core molds for production of good products and productivity of contact lenses.

In general, eyeglasses and contact lenses are used as a method for correcting eyesight. Unlike eyeglasses, they are worn to be in direct contact with the cornea of the eye, thereby correcting the visual acuity caused by the refraction of light, improving the activity of the wearer, The color and design are implemented and contact lenses are used to produce various colors and shapes of eyes.

In order to manufacture such a contact lens, lathe-cutting and molding are used. In the case of the cutting method of a lathe, a monomer is polymerized to form a rod, then a blank is formed again, The inner and outer surfaces of the contact lens are processed in a lathe and a fine uneven surface of the surface is polished by a grinder. In the casting method, a pair of molds having a lens shape, that is, an arm mold and a convex And then injecting the monomer into a space formed by mutual bonding using a male mold having a shape surface, followed by polymerization.

In this case, it is difficult to keep the diameter of the lens and the curvature of the back face constant, and since the polishing process requires high precision, it is difficult to produce and manufacture the lathe. However, the casting method has a disadvantage of the above- It is possible to manufacture a large number of lenses while maintaining the same reproducibility, and therefore, a contact lens is manufactured by a method according to the cast molding method recently.

As a conventional technique disclosed in the related art for manufacturing a contact lens according to the cast molding method, Korean Registered Patent No. 1155976 (Jun. 07, 2012) discloses a male type base curve having a convex shape surface, And a female front curve having a concave surface joined to the base curve, wherein the base curve has an outer side surface formed with a protrusion protruding therefrom, and an inner side surface of the front curve is covered with the engagement protrusion A contact lens forming portion is formed inside the base curve and the front curve, and a monomer storing portion is formed so as to extend outward of the contact lens forming portion, and the tip of the contact lens forming portion The bottom edge of the base curve and the inner edge of the front curve Wherein the inner surface of the front curve forming the monomer storage portion is formed as an inclined surface inclined to be connected to the edge portion, and the inner surface of the front curve forming the monomer storage portion is formed as an inclined surface, Since the portion connected to the convex surface of the base curve and the portion connected to the inner concave surface of the front curve are formed as rounded curved portions without forming a vertex point, the monomer can be replenished easily in the polymerization process after the monomer injection, Mold mold for manufacturing a fully automated contact lens is known.

In addition, Japanese Patent Publication No. 513441 (Sep. 1, 2005) discloses a mold for molding a jig having a lens contact surface by injecting monomers onto a space sealed by an upper fixing plate, a upper plate, a stripper plate, a lower plate, ; A first core mounted on the upper plate and having a fastener at a lower portion thereof to determine a body of the jig; A second core inserted into the first core to determine a lens contact surface of the jig; A mood bolt mounted on the upper fixing plate and prevented from being moved to an upper portion of the second core; A third core mounted on the stripper plate and having a fastener corresponding to a fastener of the first core and determining a bottom surface of the jig; And a fourth core inserted in the lower core and inserted into the third core and determining a coupling hole and an engagement jaw which are inner diameters of the jig, thereby improving the quality of the product and enabling mass production of jigs (molds) There is known a mold for molding a contact lens production jig capable of maximizing the increase and improvement of workability.

However, in the above-mentioned prior art, since a core mold of a metal material is manufactured by manufacturing a contact lens and a contact lens is manufactured by mass-producing a mold of a separate plastic material on the basis of a core mold, cost increase and production And the surface shape and roughness are measured by acquiring only a part of the molds of a mass produced mold. Therefore, there is a problem that the reliability of the production quality is lowered and a high defect rate is caused.

KR Patent Publication No. 10-1155976 (June 7, 2012) KR Patent Registration No. 10-0513441 (September 1, 2005)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a measurement system capable of measuring surface shape and illuminance continuously to a core mold having a spherical shape surface, The present invention provides a core mold manufacturing system for manufacturing a contact lens using a super-precise optical measuring system capable of minimizing manufacturing costs and enhancing productivity and production quality of a product and minimizing the occurrence of nonconforming products of the product It has its purpose.

A core mold manufacturing system for manufacturing a contact lens, which incorporates an ultra-precise optical measuring system proposed by the present invention, includes: a mold processing machine for surface-processing a concave or convex spherical shape surface corresponding to one end of a core mold; And a core mold surface measuring device for measuring a surface shape and a surface roughness of the shape surface while being in-line supplied to the core mold processed from the mold processing machine and being in contact with the shape surface of the core mold, The surface measuring machine includes a measuring body having a work support on an upper part thereof, a jig part fixedly mounted on a work supporting part of the measuring body and supporting and fixing a core mold on the upper part thereof, And a detector for contacting the shape surface of the core mold and measuring the surface shape and the surface roughness.

Wherein the jig includes a base frame fixedly installed on the work support, a flow plate installed on the base frame so as to be movable in the X-axis direction and the Y-axis direction, Position adjusting means for moving the flow plate in the X-axis direction and the Y-axis direction, and a fixed vise installed on the upper portion of the flow plate for fastening and fixing the core mold.

The jig part forms a? -Axis adjusting unit that is fixed to the fixed vise while being rotatably installed on the flow plate, and is capable of adjusting the fixed vise in the? -Axis direction.

Wherein the detecting unit includes a detecting unit having a stylus capable of being contacted with a shape surface of the core mold and an elevating unit supporting the detecting unit and being vertically movable in a vertical direction corresponding to the jig, The detection unit constitutes drive means provided so as to be linearly movable back and forth so as to adjust the position of the stylus.

The detection unit is provided with detection inclination means provided on the detection unit and rotatably provided on the elevation unit so as to be able to set a measurement inclination angle.

According to the core mold manufacturing system for manufacturing a contact lens using the ultra-precise optical measuring system according to the present invention, a core mold for directly forming a contact lens is manufactured. The shape of the core mold is processed, and the surface shape and roughness are uniformly measured The manufacturing cost of the mold mold can be reduced by omitting the production process of the mold mold which is unnecessary and the cost competitiveness and the productivity of the product are improved and the contact lens is molded and manufactured in the core mold having the surface shape and the roughness measured It is possible to improve the quality of the product while at the same time producing the good product.

1 is a conceptual diagram showing an embodiment according to the present invention;
Figure 2 is a front view of a core mold surface meter in an embodiment according to the present invention;
3 is a front view showing a jig portion of a core mold surface measuring instrument according to an embodiment of the present invention.
4 is a plan view showing a jig portion of a core mold surface measuring instrument according to an embodiment of the present invention.
5 is an enlarged view showing a detection portion of a core mold surface measuring instrument according to an embodiment of the present invention.
6 is a front view showing an operating state of the detection inclining means among the detecting portions of the core mold surface measuring instrument according to the embodiment of the present invention.
7 is an exemplary view showing measurement results according to an embodiment of the present invention;

The present invention relates to a molding machine for surface-processing a concave or convex spherical surface in correspondence with one end of a core mold; And a core mold surface measuring device for measuring a surface shape and a surface roughness of the shape surface while being in-line supplied to the core mold processed from the mold processing machine and being in contact with the shape surface of the core mold, The surface measuring machine includes a measuring body having a work support on an upper part thereof, a jig part fixedly mounted on a work supporting part of the measuring body and supporting and fixing a core mold on the upper part thereof, A core mold manufacturing system for manufacturing a contact lens, which incorporates an ultra-precise optical measuring system including a detecting section for measuring a surface shape and a surface roughness in contact with a shape surface of a core mold,

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of a core mold manufacturing system for manufacturing a contact lens incorporating the ultra-precise optical measuring system according to the present invention will be described in detail with reference to the drawings.

First, as shown in FIG. 1, the core mold manufacturing system for manufacturing a contact lens incorporating the ultra-precise optical measuring system according to the present invention comprises a mold processing machine 100 and a core mold surface measuring machine 200.

The mold processing machine 100 processes the core mold M made of a metallic material continuously such as cutting and grinding so as to form a concave or convex spherical surface corresponding to one end of the core mold M.

The mold processing machine 100 includes a driving chuck 110 for rotationally driving one end of a core mold M while being clamped and fixed and a plurality of tools corresponding to the core mold M in front of the driving chuck 110 And the tool base 120 for numerically controlling the driving chuck 110 and the tool base 120 based on the processing value of the core mold M set and inputted by the user so that the shape of the core mold So that the surface can be machined.

The core mold surface measuring apparatus 200 functions as an ultra-precise optical measuring system for measuring the surface shape and surface roughness with respect to the shape surface of the core mold M finished in the mold processing machine 100.

The core mold surface meter 200 is configured so that the core mold M processed from the mold machine 100 can be supplied in-line. For example, there is provided a pick-up unit 50 for picking up a core mold M having a shape surface processed in the mold processing machine 100, and the core mold M is picked up and transferred in the mold processing machine 100 So that the core mold surface measuring device 200 is automatically supplied to a measurable position.

As shown in FIG. 2, the core mold surface measuring apparatus 200 has a structure in which the surface shape and the surface roughness of the core mold M are contacted to correspond to the shape surface of the core mold M, (220) and a detection unit (230).

The measurement body 210 has a frame structure in which the structures of the jig 220 and the detector 230 are installed at respective positions and are supported to be able to be driven.

The measurement body 210 is provided with a work support 215 at the upper part thereof. That is, the work support base 215 is provided with the detection unit 230 and is capable of fixing the jig 220.

The measurement main body 210 is provided with an operation controller (not shown) having a structure that can be set or operated by the user on one side.

The jig 220 is fixedly mounted on a work support surface of the measurement body 210 and supports and fixes the core mold M at an upper portion thereof so as to be measurable from the detection portion 230.

3 and 4, the jig 220 includes a base frame 221 fixedly mounted on the work support 215, a flow plate 223 mounted on the base frame 221, A position adjusting means 225 provided between the base frame 221 and the flow plate 223 and a fixing vise 227 installed on the flow plate 223.

The flow plate 223 is installed on the base frame 221 so as to be movable in the X-axis direction and the Y-axis direction and sets the working position according to the operation of the position adjusting means 225, ) Are finely moved in the X-axis direction and the Y-axis direction.

The position adjusting means 225 includes an operating member 226 which is rotatably provided with a moving screw (not shown) extending in the moving direction, that is, the X axis direction or the Y axis direction, And the position fixing member 228 is provided so as to fix the operation setting according to the locking state.

4, the position adjusting unit 225 includes a first position adjusting unit 225a installed on the base frame 221 to move the flow plate 223 in the forward and backward directions Y, And second position adjusting means 225b disposed on the upper portion of the first position adjusting means 225a and disposed below the flow plate 223 and moving the flow plate 223 in the left and right X axis directions .

The position adjusting means 225 is provided with a display means 224 for checking a fine movement amount when the position of the moving plate 223 in the X-axis direction or the Y-axis direction is confirmed.

The fixed vise 227 includes a vise supporter 227a for forming a pair of left and right guide members 222 and a vise supporter 227a provided on the vice supporter 227a so as to be linearly movable forward and backward along the guide member 222 A pair of pressure tightening members 227b for applying pressure to the core mold M to fix the core mold M and a pressing operation means 227c for movably operating the press tightening member 227b in a linear direction.

The jig 220 is formed with a θ-axis adjusting means 229 for supporting the fixing vise 227 on the flow plate 223 and adjusting the fixing vise 227 in the θ-axis direction .

The θ-axis adjusting means 229 is rotatably mounted on the flow plate 223 and can elastically adjust the rotation angle of the fixing vise 227. The θ- An angle fixing means 229a capable of fixing the rotation angle of the vise 227 is formed.

The detection unit 230 approaches the core mold M located on the jig 220 to make contact with the surface of the core mold M to measure the surface shape and the surface roughness of the shape surface.

As shown in FIGS. 2 and 5, the detection unit 230 includes a detection unit 231 and an elevation unit 235, which can be driven in the forward and backward directions and the vertical direction corresponding to the jig 220 .

The detection unit 231 is provided with a stylus 232 extending forward at one end thereof and capable of contacting with the shape surface after approaching the core mold M fixed on the jig 220.

The stylus 232 is provided at one end with a measuring tip T which can directly contact the shape surface of the core mold M to measure the shape and roughness of the shape surface.

In this case, the measuring tip T is conical and the tip angle of the lower end is 60 DEG, and diamond is used as the material.

In the detection unit 231, the measured pressure along the stylus 232 is 0.7 to 0.8 mN.

The detection unit 231 is provided with drive means 233 which is provided so as to linearly move back and forth so as to adjust the position of the stylus 232 and which is capable of extending the measurement range so that the position of the stylus 232 for measurement is extended forward ).

The drive means 233 can expand from the detection unit 231 with a sufficient distance from the detection unit 231 in the horizontal direction to a maximum of 100 mm in the measurement range so as to smoothly measure the shape of the core mold M Of course, it is possible to avoid interference with the measured object.

The drive unit 233 is driven at a drive speed of 1 to 80 mm / s, and can be automatically driven basically, and is configured to be manually driven as needed by the user.

The elevating unit 235 supports the detecting unit 231 and is vertically movable vertically corresponding to the jig 220.

The lifting unit 235 includes a column member 235a extending in the vertical direction on the work support 215 of the measuring body 210 and a detection member 231b provided on the column member 235a, And a lifting and driving means 235b which is movable up and down along the vertically extending path of the column member 235a.

The detection unit 230 has a measuring range of 0.05 to 5 mm in a vertical direction along the elevation unit 235 at a working position corresponding to the jig 220.

The elevating unit 235 of the detecting unit 230 is driven at a driving speed of 1 to 20 mm / s, and can be automatically driven basically, and is configured to be manually driven as needed by the user.

6, the detection unit 230 is provided on the detection unit 231 and is rotatably mounted on the elevation unit 235 to set a measurement inclination angle corresponding to the detection unit 231 The detection inclination means 237 constitutes the detection inclination means 237.

The inclination angle of the detection unit 230 according to the detection inclination means 237 can be measured by driving the inclination angle freely within a range of ± 45 degrees up and down.

By constituting the detection inclining means 237 as described above, it is possible to smoothly measure the shape of the core mold M having the spherical surface by strongly supporting the measurement on the inclined surface.

In addition, the measurement results of the surface shape and the surface roughness measured by the detector 230 in the core mold surface measurer 200 are calculated as data for each list as shown in FIG. 7 and are output so that they can be monitored from a separate display, It is preferable to provide an output device capable of outputting in a surge form and a storage module capable of storing in the form of a file in accordance with the need of the user.

That is, according to the core mold manufacturing system for manufacturing a contact lens, which incorporates the ultra-precise optical measuring system according to the present invention, the core mold for directly molding a contact lens is manufactured, The core mold is manufactured so that the shape and the roughness can be uniformly measured. Therefore, the production cost of the mold mold can be omitted, thereby improving the price competitiveness and productivity of the product, It is possible to manufacture a good product and improve the quality of the product.

Although the preferred embodiments of the core mold manufacturing system for manufacturing a contact lens using the ultra-precise optical measuring system according to the present invention have been described above, the present invention is not limited thereto, and various modifications may be made within the scope of the claims and the detailed description of the invention. And this is also within the scope of the present invention.

100: Mold machine 200: Core mold surface meter
210: measuring body 215: work support 220: jig
221: base frame 223: moving plate 224: display means
225: position adjusting means 225a: first position adjusting means 225b: second position adjusting means
226: operating member 227: fixed vise 227a:
227b: pressure tightening member 227c: pressure operating means 229:
230: detecting unit 231: detecting unit 232:
233: drive means 235: lift unit 235a: column member
235b: lift driving means 237: detecting slope means M: core mold

Claims (5)

A mold processing machine for surface-processing a concave or convex spherical shape surface corresponding to one end of the core mold; And a core mold surface measuring device for measuring a surface shape and a surface roughness of the shape surface while being in-line supplied to the core mold processed from the mold processing machine and being in contact with the shape surface of the core mold, The surface measuring machine includes a measuring body having a work support on an upper part thereof, a jig part fixedly mounted on a work supporting part of the measuring body and supporting and fixing a core mold on the upper part thereof, And a detector for contacting the shape surface of the core mold and measuring the surface shape and the surface roughness,
Wherein the jig includes a base frame fixedly installed on the work support, a flow plate installed on the base frame so as to be movable in the X-axis direction and the Y-axis direction, A position adjusting means for moving the moving plate in the X-axis direction and the Y-axis direction; a fixing vice installed on the upper portion of the moving plate for fastening and fixing the core mold; Axis adjusting means provided so as to be able to adjust the fixed vise in the? -Axis direction,
The position adjusting means of the jig may include a first position adjusting means installed on the base frame to move the flow plate in the forward and backward directions of the Y axis and a second position adjusting means provided on the upper portion of the first position adjusting means, And second positioning means for moving the flow plate in the left and right X-axis directions,
Wherein the position adjusting means comprises an operating member provided with a movable screw extending in the X axis direction or the Y axis direction so as to be rotatable and a position fixing member fixedly provided in a locked state ≪ / RTI >
Wherein the detection unit comprises a detection unit having a measuring tip having a tip angle of 60 ° at the lower end in a conical shape and having a stylus capable of contacting with a measuring pressure of 0.7 to 0.8 mN corresponding to the shape surface of the core mold, And a drive means provided linearly movably forward and backward to adjust the position of the stylus, wherein the detecting means includes a drive means for linearly moving forward and backward to adjust the position of the stylus,
Wherein the detection unit has a measuring range of 0.05 to 5 mm in a vertical direction along the elevation unit at a working position corresponding to the jig,
Wherein the detection unit is provided on the detection unit and is rotatably provided on the elevation unit, A core mold manufacturing system for manufacturing a contact lens, which incorporates an ultra-precise optical measuring system including detection inclining means for configuring a measurement inclination angle to be set.
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