WO2005084825A1 - 塗布装置及び光学レンズの製造方法 - Google Patents
塗布装置及び光学レンズの製造方法 Download PDFInfo
- Publication number
- WO2005084825A1 WO2005084825A1 PCT/JP2005/003140 JP2005003140W WO2005084825A1 WO 2005084825 A1 WO2005084825 A1 WO 2005084825A1 JP 2005003140 W JP2005003140 W JP 2005003140W WO 2005084825 A1 WO2005084825 A1 WO 2005084825A1
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- WO
- WIPO (PCT)
- Prior art keywords
- coating solution
- coating
- lens
- optical lens
- outer peripheral
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/08—Spreading liquid or other fluent material by manipulating the work, e.g. tilting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
Definitions
- the present invention relates to a coating apparatus and a method for producing an optical lens used when a coating solution is applied to a lens surface and cured to form a coating film.
- a coating film of a material suitable for the purpose is applied to the surface of the spectacle lenses. Is being formed.
- the formation of such a coating film is described in “Eyeglasses”, published on May 22, 1986 by Medical Aoi Publishing Co., Ltd., p.
- an apparatus for automatically forming a coating film is disclosed in Japanese Patent Application Laid-Open No. 2002-178058, Japanese Patent Application Laid-Open No. 2000-890891, etc. ing.
- a lens coating apparatus for an eyeglass lens described in Japanese Patent Application Laid-Open No. 2002-1777782 is a turntable-type holding member provided in a clean room, Two rotatable lens holders, each of which is provided with a spectacle lens, a plurality of dispensers disposed above the holder, and a beam irradiation means for irradiating a beam for curing the coating solution. Is provided.
- the holder is configured to intermittently make a half-turn so that the two lens holders are alternately moved to a coating position below the dispenser and a curing position below the light beam irradiating means.
- the dispenser When one of the lens holders moves to the application position and stops by the half rotation of the holder, and the other lens holder moves to the curing position and stops, the dispenser is placed on one of the lens holders.
- the coating solution is dropped on the surface of the spectacle lens that has been used.
- the light beam irradiating means irradiates the coating solution applied to the spectacle lens placed on the other lens holder with ultraviolet rays to cure the coating solution.
- the holder is removed by another half after the spectacle lens placed on the other lens holder is removed.
- this coating apparatus automatically and continuously applies the recoating solution and the hardening operation by intermittent rotation of the holder.
- the method and apparatus for curing spectacle lenses described in Japanese Patent Application Laid-Open No. 2000-50089 are formed from a step of molding a plastic lens by a casting polymerization method. It includes a series of steps up to the step of forming a coating film on a plastic lens.
- a plastic lens is molded by irradiating the first ultraviolet ray to the lens monomer inside the mold and curing the monomer.
- a coating solution containing a photopolymerization initiator is applied to the lens, and the oxygen barrier is irradiated with a second ultraviolet ray to be cured to form a recoating film.
- the coating solution is uniformly applied to the coated surface of the spectacle lens by a spin coat method using centrifugal force.
- the coating solution could not be uniformly applied to the surface to be coated only by centrifugal force. That is, when the coating solution is collected at the outer peripheral edge of the surface to be coated by centrifugal force, the film thickness becomes thicker than other portions due to surface tension. In this state, when the coating solution is irradiated with ultraviolet rays and cured to form a coating film, wrinkles are formed on the coating film at the outer peripheral edge of the surface to be coated.
- coating solutions for dimming use It has a higher viscosity and a thicker film than other coating solutions, so it is easy to wrinkle when cured, which significantly reduces the appearance of the product. For this reason, some measures are required to remove excess coating solution that collects on the outer peripheral edge of the coated surface.
- the coating solution dropped on the coated surface of the spectacle lens dripping from the outer peripheral edge of the coated surface along the outer peripheral surface, and the film thickness is not constant in the circumferential direction and the thicker portion is formed.
- the film thickness is not constant in the circumferential direction and the thicker portion is formed.
- thin parts were formed.
- the coating solution is irradiated with ultraviolet rays and cured to form a coating film, it takes time to cure the coating solution applied to the outer peripheral surface, and when cured, the coating film becomes wrinkled. For this reason, some measures are required for the coating solution collected on the outer peripheral surface to make the film thickness uniform.
- the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to remove excess coating solution collected on the outer peripheral edge of a coating surface of an optical lens, and to remove the coating surface.
- An object of the present invention is to provide a coating apparatus and a method of manufacturing an optical lens which can have a substantially uniform film thickness as a whole and prevent wrinkles from occurring during curing.
- the present invention provides a coating apparatus and a method for manufacturing an optical lens, which prevent the occurrence of wrinkles during curing by smoothing the coating solution covering the outer peripheral surface of the optical lens over the entire circumference. Is to provide.
- a coating apparatus includes: a coating container having therein a rotating table on which the optical lens is mounted; and a coating solution on a coating surface of the optical lens.
- a method of manufacturing an optical lens according to a second aspect of the present invention includes: a step of applying a coating solution to a surface to be coated of the optical lens; A step of smoothing the thickness of the coating solution; a step of removing excess coating solution remaining on the outer peripheral edge of the coated surface of the optical lens; and irradiating the optical lens with a light beam to cure the coating solution. It has a process.
- the spatula mechanism removes excess coating solution accumulated on the outer peripheral edge of the surface to be coated and prevents wrinkles from being generated.
- the method for manufacturing an optical lens according to the second invention includes a step of removing an excess coating solution that accumulates on the outer peripheral edge of the coated surface of the optical lens. Can be made uniform, and generation of wrinkles can be prevented.
- FIG. 1 is an external perspective view showing a part of an embodiment of a coating apparatus for an optical lens according to the present invention, which is cut away.
- FIG. 2 is a schematic plan view showing an arrangement relationship of various devices, means, and the like in a clean room of the coating device.
- FIG. 3 is an external perspective view of a coating apparatus.
- FIG. 4 is a schematic side sectional view of the coating apparatus.
- FIG. 5 is an external perspective view showing a spatula mechanism for a coating solution and a solution smoothing mechanism for a lens outer periphery.
- FIGS. 6A and 6B are a plan view and a front view, respectively, showing a state in which an excess coating solution is removed by a spatula mechanism.
- FIG. 7 is an external perspective view showing a coating solution collecting device.
- FIG. 8 is an external perspective view showing a state where a lens rack has been moved to a curing unit.
- FIG. 9 is a plan view of a lens rack.
- FIG. 10 is a cross-sectional view taken along line XX of FIG. 9.
- the coating apparatus generally denoted by reference numeral 1 includes a cubic casing 3 that is installed on the floor and is long in the front-rear direction.
- the coating apparatus 1 is an apparatus that automatically performs a series of operations for forming a recoating film by applying a coating solution to a lens surface and curing the coating solution by irradiating light.
- the coating apparatus 1 is an apparatus capable of continuously performing a coating solution application operation and a coating solution curing operation on a pair of spectacle lenses 2 mounted on an eyeglass frame.
- As a coating solution applied to the spectacle lens 2 an ultraviolet curing type dimming coating solution is used.
- the spectacle lens 2 is a circular plastic lens in which the convex surface, which is the coated surface 2a, is polished to an optical surface having a predetermined radius of curvature, and the concave surface is unprocessed or polished to an optical surface.
- the outer diameter is, for example, 65 mm, 7 O mm, 75 mm, 8 O mm, or the like.
- the casing 3 of the coating apparatus 1 includes a box-shaped frame structure 4 formed by joining a plurality of frames, a bottom plate 5 of the frame structure 4, and the inside of the frame structure 4 vertically.
- the control panel 11 controls the sequence of the first and sixth transport means, coating device 42, light beam irradiation device 151, etc., which will be described later, and is connected to an external input device (not shown).
- an external input device for example, a personal computer is used, and the operation timing, operation time, etc. of the first and sixth transporting means, the coating device 42, the light irradiation device 151, etc. are set according to each spectacle lens 2. Set Then, the signal is input to the control panel 11.
- the first and sixth transport mechanisms, the coating device 42, the light beam irradiation device 151, and the like are housed inside the upper chamber 7.
- the upper chamber 7 forms a clean room in which the internal pressure is slightly higher than the atmospheric pressure by supplying clean air downward from above through the supply pipe 15. For this reason, in the following description, the upper room 7 is referred to as a clean room 7.
- a transparent plastic plate is used for the plate 10 forming the wall surface.
- the plastic plate 1 Oa that forms the front surface of the clean room 7 on the wall forms a door that can be opened and closed.
- a stainless plate is used for the plate 10 forming the ceiling surface.
- the interior of the clean room 7 is roughly divided into three areas, namely, a tray carrying section 21, a coating section 22 and a curing section 23.
- the tray transport section 21 is a section for transporting the tray 24 for storing a pair of spectacle lenses 2L and 2R from the front to the rear of the apparatus, and is a front-rear direction of the right side in the clean room 7. It is an area that spans the entire length.
- the application section 22 is a section for applying the coating solution to the coating surface 2 a of the spectacle lens 2, and is an area on the left side of the tray transport section 21 and in the first half of the clean room 7.
- the hardening part 23 is a part for hardening the coating solution applied to the coating surface 2 a of the spectacle lens 2, and is a region behind the applying part 22.
- the tray 24 is formed in a box shape by plastic injection molding, and has two mounting surfaces on which the spectacle lenses 2L and 2R are mounted with the surface to be coated 2a facing upward. And a bar code 25 indicating the identification number of the tray 24 is attached to the rear wall.
- the tray transport section 21 has a tray 24 that transports the tray 24 from the front to the rear.
- One transport means 30 is provided.
- a belt conveyor 30A driven intermittently by a motor is used as the first transport means 30, a belt conveyor 30A driven intermittently by a motor.
- the belt conveyor 3 OA travels when the tray 24 is placed at the front end, conveys the tray 24 to the first transfer position T in the clean room 7, pauses, and stops inside the tray.
- the spectacle lens 2 is taken out, the tray 24 running again after traveling is emptied from the first delivery position T to the seventh delivery position T.
- the front end of the conveyor 3 OA projects forward from the opening 3 1 provided in the front plastic plate 1 Oa of the clean room 7, and the rear end also has the opening 3 provided in the rear plastic plate 10 b of the clean room 7. It protrudes rearward from 2.
- the first delivery position T is located at the right front portion in the clean room 7, that is, at the front.
- a bar code reader 35 for optically reading the bar code 25 are provided.
- the bar code reader 35 is attached to the center of a gate-shaped attachment plate 36 provided on the left and right side plates of the first transfer means 30.
- the signal is sent to a host computer (not shown).
- the host computer transmits the lens information necessary for coating such as the lens power, outer diameter, and center thickness of each of the spectacle lenses 2 L and 2 R stored in the tray 24. Send to external input device.
- the operator attaches the spectacle lens 2 to the tray 24, places the tray 24 on the belt conveyor 30A, and attaches the bar code 25 to the tray 24.
- the coating unit 22 is provided with two lens mounting tables 41 on which a pair of spectacle lenses 2L and 2R are mounted, and a coating device 42.
- the two lens mounting tables 41 are provided at the second delivery position T.
- the second delivery position T is
- the distance d between the two lens mounting tables 4 1 and 4 1 is the distance between the two spectacle lenses 2 stored in the tray 24.
- the external input device when receiving the lens information signal from the host computer, the external input device sends a signal to the control unit 11 based on the signal. Control unit 1 1 The driving signal is output based on the signal from the device, and the second transport means 44 is operated. For this reason, the second transport means 44 takes out the spectacle lenses 2 L and 2 R in the tray 24 and transports them to the second delivery position T,
- the second transporting means 44 includes a pair of left and right holding means 46 A, 46 B for holding each of the spectacle lenses 2 L, 2 R with three holding pins 47. These holding means 46 A and 46 B are provided on rails 45 provided so as to extend in the left-right direction above the front end of the clean room 7 so as to be able to approach and separate from each other. Between the first transfer position T and the second transfer position T
- the three holding pins 47 for holding the spectacle lens 2 are arranged at substantially equal intervals on the same circumference, and are configured to open and close in synchronization by driving a motor.
- the pair of holding means 46A and 46B are provided on the rail 45 so as to be movable up and down, and usually stand by above the first delivery position. In this standby state, the pair of holding means 46 A and 46 B are arranged at a distance d between the spectacle lenses 2 L and 2 R in the tray 24.
- the lower tray 46 descends and holds the three eyeglass lenses 2 L and 2 R housed therein.
- the pin is pinched by the pin 47, it rises again and rises above the second delivery position T.
- the eyeglass lenses 2 L and 2 R are transferred to each lens mounting table 41 by lowering and opening the pin 47. At this time, the distance between the pair of holding means 46 A and 46 B is equal to the distance d between the two lens mounting tables 41.
- the first transport means 30 is driven again to empty.
- the conveyed tray 24 is transported to a seventh delivery position T7 described later.
- the coating device 42 includes a coating container 50, a pair of left and right coating solution dripping means 52, a spatula mechanism 53, and a lens outer circumference solution smoothing mechanism 54. And a recovery device 14 for the coating solution 63.
- the application container 50 is a left-right cuboid container that is open behind and is installed behind the first mounting table 41.
- the spectacle lenses 2L and 2R are provided on the upper surface. A pair of left and right openings 58 to be inserted are formed.
- Inside the coating container 50 a pair of left and right rotating tables 51 on which the spectacle lenses 2L and 2R are installed, and two stepping motors 56 for rotating the respective rotating tables 51 independently are arranged. It is set up.
- the coating solution dripping means 52 drops the coating solution 69 onto the surface 2 a to be coated. Is done.
- the turntable 51 rotates the stepping motor 56 when the placed spectacle lens 2 is vacuum-sucked, and centrifugs the coating solution 63 dropped on the coating surface 2a of the spectacle lens 2. It is stretched thinly by force to make the film thickness uniform.
- the rotation speed of the turntable 51 can be switched in two stages in the order of low speed and high speed.
- the rotation speed at low speed is about 15 rpm, and the rotation speed at high speed is about 54 rpm.
- the distance between the pair of left and right rotating tables 51 is equal to the distance d between the first mounting tables 41.
- the distance between the pair of rotating tables 5 1 is determined by the distance d between the two spectacle lenses 2 in the tray 2 4
- the reason for increasing the size is to prevent the coating solution 63 scattered from each spectacle lens 2L, 2R from adhering to the other adjacent spectacle lens due to centrifugal force.
- a frusto-conical baffle plate 59 for preventing attachment to the other spectacle lens 2 is attached.
- the pair of left and right coating solution dripping means 52 includes a nozzle 60, an exchangeable container 61 for storing the coating solution 63, and a nozzle 60 together with the container 61 when the coating solution 63 is dropped.
- Drive unit that moves up and down and back and forth And the like, and are provided above the coating container 50 so as to correspond to the respective turntables 51.
- the coating solution 63 in the container 61 is pushed out from the nozzle 60 by a predetermined amount by applying a predetermined pressure, and is dropped on the coating surface 2 a of the spectacle lens 2.
- the driving device 66 of the coating solution dripping means 52 includes a first slide plate 68 and a first motor 69 that moves the slide plate 68 in the front-rear direction.
- a pole screw 70 for transmitting the rotation of the first motor 69 to the first slide plate 68 is provided.
- the first slide plate 68 is disposed on a pair of left and right guide bars 67 provided on the ceiling surface of the clean room 7 so as to be movable in the front-rear direction.
- a second slide plate 71 that is moved up and down by an up-and-down cylinder 72 is provided below the first slide plate 68.
- the upper and lower cylinders 72 are fixed to the first slide plate 68.
- the second slide plate 71 has a pair of left and right third slide plates 75 and a pair of left and right motors 76 for vertically moving these slide plates 75 independently of each other. It is arranged.
- the third slide plate 75 is held by a pair of left and right guide bars 74 attached to the front surface of the second slide plate 71 so as to be movable up and down. 8 to be transmitted.
- the coating solution dripping means 52 is attached to the front surface of each third slide plate 75.
- the coating solution dripping means 52 drops the coating solution 63 onto the spectacle lens 2
- the nozzle 60 spirals from the outer periphery of the spectacle lens 2 toward the center when the coating solution dripping means 52 drops.
- the driving of the coating solution dropping means 52 is controlled so as to move in the shape of a circle.
- the coating solution 63 is dropped on the coated surface 2a of the spectacle lens 2
- the coating solution 63 spreads over the entire coated surface 2a due to centrifugal force generated by the rotation of the turntable 51, and part of the coating solution is scattered. And fall into the application container 50
- the coating solution 63 is applied to the coated surface 2 a of each of the spectacle lenses 2 L and 2 R by the spin coat method using the coating device 42. Then, the coating solution 63 increases at the outer peripheral edge of the surface to be coated 2a due to the surface tension and becomes thicker due to the surface tension.
- the thickness of the coating solution 63 on the outer peripheral edge of the coated surface 2a is large, when the coating solution 63 is cured by irradiating ultraviolet rays in the next curing step, wrinkles are generated on the coating film. There is a possibility that.
- the spatula mechanism 53 is attached to the third slide plate 75 so as to be located in the vicinity of each coating solution dripping means 52, and the eyeglasses 53 are used by this spatula mechanism 53. Excess coating solution 63 on the outer peripheral edge of the coated surface 2a of the lenses 2L and 2R is removed to make the film thickness uniform.
- the spatula mechanism 53 includes a support arm 80 attached to the third slide plate 75, and a tip end of the support arm 80 located on the left side of the nozzle 60.
- the holder 83 is attached to the support arm 82 so as to be inclined at a required angle Qf, for example, 45 ° in the direction of the spectacle lens 2 with respect to a vertical line as shown in FIG. 6B.
- the spatula 85 is also inclined in the same direction at the same angle as the holder 83. Further, as shown in FIG. 6A, the spatula 85 is formed by a predetermined angle ⁇ , for example 3 By crossing at 0 °, the front end is located at any point P on the outer peripheral edge of the coated surface 2a.
- 8 5 is mounted so that it is inclined to intersect the vertical line and the horizontal line in the front-rear direction.
- the spatula mechanism 53 stands behind the spectacle lens 2 L when not using the coating solution and does not drip, and after the coating solution is dripped, the first slide plate 68 advances to move the spectacle lens. Move to the left side of the lens 2L, and bring the spatula 85 into contact with the outer peripheral edge of the coated surface 2a.
- the spatula mechanism 53 of the left-eye spectacle lens 2L is shown in FIG. 5, the description of the spatula mechanism 53 of the right-eye spectacle lens 2R is omitted because it has exactly the same structure.
- the lens outer circumference solution smoothing mechanism 54 includes a spectacle lens 2
- the holding mechanism 91 is composed of a telescopic pandagraph mechanism and is normally held in a shortened state by a tension coil spring 93.
- the pair of coating solution removing members 92 are configured to be pressed against the outer peripheral surface 2b of the eyeglass lens 2L with a predetermined pressure.
- the driving device 90 an air cylinder is used. Since the solution smoothing mechanism 54 for the lens periphery of the right eyeglass lens 2R has exactly the same structure, the description thereof will be omitted.
- the coating solution removing member 92 is formed in a cylindrical shape by a foamed resin having excellent adsorptivity, preferably sponge, and is provided on a surface of a mounting plate 94 attached to the front end of the pandagraph mechanism 91 in a front-rear direction.
- the coating solution 63 attached to the outer peripheral surface 2 b is pressed down against the outer peripheral surface 2 b of the rotating spectacle lens 2 L so that the coating solution 63 adheres to the entire outer peripheral surface. Stretch thinly to obtain a uniform film thickness.
- the spatula mechanism 53 and the lens outer circumference solution smoothing mechanism 54 are configured to operate almost simultaneously after the coating solution 63 is dropped by the coating solution dropping means 52.
- the eyeglass lens 2 may be scattered by centrifugal force from the coated surface 2a, or may have a spatula mechanism.
- the recovery device 14 for the coating solution 63 includes a suction pump 100 and a plurality of containers 101 for recovering the coating solution 63.
- the suction pump 100 is housed in the lower chamber 6 of the housing 3 shown in FIG.
- the plurality of collection containers 101 are connected in series by a pipe 102. One end of the pipe 102 is connected to the suction pump 100, the other end is branched into two and inserted into the application container 50, and is positioned directly below each spatula mechanism 53.
- a third transport unit 110 that reciprocates between the second, third, and fourth delivery positions T 1, T 2, T 3 is provided.
- the third delivery position T is a position where the coating device 42 is located.
- the fourth delivery position T is a position behind the third delivery position T and
- the third transfer means 110 is a slider 1 provided on a horizontal rail 111 provided on the left inner wall of the clean room 7 so as to be movable in the front-rear direction.
- Such third transport means 110 holds the spectacle lenses 2L, 2R mounted on the first mounting table 41 with a pair of holding means 111A, 114B.
- it is transported above the coating device 42, it is transferred to each rotating table 51 in the coating container 50, and the application of the coating solution 63 to each of the spectacle lenses 2 L and 2 R by the coating device 42 ends.
- the eyeglass lenses 2L, 2R on each turntable 51 are again sandwiched and transported to the fourth delivery position T, where the fourth delivery position
- Each of the holding means 1 1 4A and 1 1 4B is an outer peripheral surface 2b of each of the spectacle lenses 2L and 2R. And a drive device such as a motor (not shown) that opens and closes the holding pins 1 16 to open and close the second holding position T.
- a drive device such as a motor (not shown) that opens and closes the holding pins 1 16 to open and close the second holding position T.
- Two pins 116 are provided at each of the left, right, front and rear sides, and the two pinching pins facing front and rear are configured to approach and separate from each other.
- the pair of holding means 1 14A and 1 14B are usually located above the second delivery position T.
- the eyeglasses 2 L and 2 R move down when they hold these lenses and rise again to hold the third delivery position T
- the pair of clamping means 114 A and 114 B apply the coating solution 63 on each of the rotating tables 51.
- the gripped eyeglass lenses 2 L and 2 R are again grasped and taken out of the coating container 50, and the fourth delivery position T
- the drive is controlled so that it is transported to 4.
- a pair of clamping means 1 A pair of clamping means 1
- the interval between 14 A and 114 B is kept the same as the interval d between the first mounting tables 41 and 41.
- the upper opening 58 of the storage portion for storing the spectacle lenses 2 L and 2 R of the coating container 50 is provided for facilitating storage and removal of the spectacle lens 2 by the third transport means 110.
- the holding pin 1 16 is formed in a larger circle than the circle circumscribing the pin when the pin is in the maximum opened state.
- a U-shaped groove 58A that allows the holding mechanism 91 of the solution smoothing mechanism for lens outer circumference 54 to advance and retreat is formed in the opening 58 as shown in FIG.
- the lens racks 120 are two cases arranged on the base plate 121 to individually store the spectacle lenses 2 L and 2 R, that is, left eye glasses. It has a fixed case 122A for storing the lens 2L and a movable case 122B for storing the right eyeglass lens 2R.
- the base plate 1 2 1 is composed of an upper plate 1 2 1A and a lower plate 1 2 1B, and the upper plate 1 2 1A can be freely moved up and down on the lower plate 1 2 1B. It is installed in.
- the lower plate 1 2 1 B is slidably supported by a pair of left and right guide bars 124 extending in the front-rear direction. 4th delivery position T, curing section 23 and 5th delivery position
- a belt driven by a motor is used.
- the fixed case 122A is fixed to the left end of the upper surface of the upper plate 121A, and has a storage part 125 opened upward for storing the spectacle lens 2L.
- the storage section 125 includes a hole 125A for storing the spectacle lens 2L, and four pin groove sections 125B that are long in the front-rear direction and have one ends communicating with the hole 125A. It is configured.
- the hole portion 125A is formed in a tapered shape whose diameter increases upward to facilitate insertion and removal of the spectacle lens 2. Further, the tapered hole portion 125A facilitates irradiation of ultraviolet rays to the outer peripheral portion of the spectacle lens 2L when the coating solution 63 is cured by the light irradiation device 151 described later.
- the pin groove 1255B is provided with four pinching pins 216. Are grooves to be inserted respectively. Therefore, two pin grooves 125B are formed on the front side and the rear side of the hole 125A so as to face each other. Further, these pin grooves 125B allow the eyeglass lens 2L to be taken out by a fifth conveying means 1 described later. Further, a pair of left and right lens mounting portions 126 supporting the left and right ends of the outer peripheral edge portion of the spectacle lens 2L is protruded from the inner wall of the storage portion 125.
- an O-ring 128 and an air exhaust are provided to exhaust the air in the storage part 125 and replace it with an inert gas when the coating solution 63 is cured.
- a passage 130 for supplying an inert gas is used as the inert gas. Nitrogen gas is used as the inert gas.
- the O-ring 128 is fitted in an annular groove 127 formed around the storage portion 125 on the upper surface of the fixed case 122 A.
- the air discharge passageway 12 9 is formed in the thickness of the fixed case 12 22A, one end of which is open to the inner wall of the storage section 125, and the other end is shown via a pipe 13 1 Is connected to a vacuum pump.
- Inert gas supply passage 130 is also fixed Formed within the thickness of the case 122A, one end is opened at the center of the bottom of the storage part 125, and the other end is connected to the nitrogen gas supply device 12 shown in FIG. . Therefore, nitrogen gas is supplied to the storage section 125 from the nitrogen gas supply device 12 as an inert gas.
- a baffle plate 133 is provided just below the spectacle lens 2L in the center of the inside of the storage portion 125 to prevent the floating of the spectacle lens 2L by nitrogen gas.
- the movable case 1 2 2B is disposed on the right side of the fixed case 1 2 2A so as to be movable toward and away from the fixed case 1 2 2A, and has a tension recoil spring 1 2 3 is urged in the fixed case 1 2 2 A direction.
- the movable case 122B has a slightly different appearance from the fixed case 122A, but has the same internal structure. For this reason, the movable case 1 2 2B has a storage section 1 34 that opens upward to store the spectacle lens 2R, an air exhaust path 1 35 and an inert gas supply path 1 36, and a storage section.
- the present invention cures the coating solution 63 applied to the spectacle lenses 2 L and 2 R in the fixed case 122 A and the movable case 122 B respectively in the atmosphere of nitrogen gas. It is to let.
- the storage section 1 34 of the movable case 1 2 2B has a tapered hole section 134A whose diameter increases upward, and one end of the storage section 1 34 communicates with the hole section 134A.
- a pair of left and right lens mounting portions 1339 and a baffle plate 140 are provided therein.
- the four pin grooves 1 34 B allow insertion of the four holding pins 1 16 of the holding means 111 B of the third transfer means 110.
- the storage sections 125 and 134 are held at the maximum distance so that the distance between the storage sections 125 and 134 is equal to the distance d between the first lens mounting tables 41.
- the interval setting means 144 is provided on the side of the device fixing portion at the fourth delivery position T.
- the plate 1 4 3 provided on the movable case 1 2 2 B by the rod 1 4 6 of the air cylinder 1 4 5 against the normal tension coil spring 1 2 3
- the movable case 122B is separated from the fixed case 122A.
- the air cylinder 1 45 is switched from ON to OFF just before the lens rack 120 moves from the fourth delivery position T toward the curing section 23.
- the pressed state of the plate 144 by the rod 144 is released.
- the movable case 1 2 2 B by the interval setting means 1 4 4 is released, the movable case 1 2 2 B is moved to the left by the spring force of the tension coil spring 1 2 3 and fixed. It abuts on the case 122A, whereby the distance between the centers of the storage portions 125, 134 of the two cases 122A, 122B is reduced. The distance between the centers is equal to the distance d between the spectacle lenses 2 L and 2 R in the tray 24.
- the curing unit 23 is provided with a driving unit 150 for moving the lens rack 120 up and down together with the upper plate 121A.
- a light beam irradiation device 151 is provided above the curing section 23, a light beam irradiation device 151 is provided.
- the driving means 150 is composed of a pair of left and right air cylinders installed upward, and when the lens rack 120 stops at the curing section 23, it is driven to drive the upper plate 1 2 1A to the light beam irradiation device 1 5 1 It is configured to rise up to the lower surface height of.
- the light beam irradiation device 15 1 includes an ultraviolet lamp 15 3 disposed horizontally in a sealed housing 15 2. Cooling air 154 is supplied to the inside of the housing 152 to prevent the temperature of the ultraviolet lamp 153 from rising when the coating solution 63 is cured. Therefore, one end of the cooling air pipe 15 5 and one end of the exhaust pipe 15 6 are connected to the housing 15 2. The other end of the exhaust pipe 156 is connected to the sirocco fan 157 shown in FIG.
- the opening on the bottom side of the housing 152 is sealed by a transparent plate 160 through which ultraviolet rays emitted from the ultraviolet lamps 1553 pass.
- the O-phosphorus is placed on the lower surface of the transparent plate 160. Presses through the fins 128 and 138, respectively. Curing of the coating solution 63 by 1 51 is performed. That is, when the coating solution 63 is cured, the light irradiation device 151 seals the fixed case 122 A and the movable case 122 B opening portions 125, 134 with the transparent plate 160 when the coating solution 63 is cured.
- the ultraviolet light emitted from the ultraviolet lamps 15 3 passes through the transparent plate 160 and is applied to the eyeglass lenses 2 L and 2 R in the fixed case 122 a and the movable case 122 b.
- the recoating solution 63 is cured by irradiating the existing coating solution 63.
- the curing work of the coating solution 63 by such a light irradiation device 15 1 is performed by sealing the fixed case 122 A and the movable case 122 B with the transparent plate 160, and This is performed after replacing the air in 5, 134 with nitrogen gas.
- a shirt 16 1 is disposed between the ultraviolet lamp 15 3 and the transparent plate 16 0 inside the housing 15 2.
- the shirt 161 which is normally kept in a closed state, is configured to block ultraviolet rays emitted from the ultraviolet lamps 153 and to open when the coating solution 63 is cured.
- the fourth transport means 1 47 moves the lens rack 120 to the fifth delivery position T from the curing section 23. Transport. Behind the fifth transfer position T, the sixth transfer position T
- a second mounting table consisting of a pair of left and right
- the second mounting table 110 has exactly the same structure as the first mounting table 41.
- the upper part between the fifth delivery position T and the sixth delivery position T is provided.
- a fifth transfer means 17 1 is provided in the space.
- the fifth transport means 17 1 is provided in the lens rack 120 which has been transported to the fifth delivery position T and stopped.
- Each of the spectacle lenses 2 L and 2 R is taken out and transported to the sixth delivery position T,
- Such a fifth transporting means 17 1 has substantially the same structure as the third transporting means 110, and a description thereof will be omitted.However, a point that a cylinder is used as a driving device and each eyeglass lens 2 The difference is that the distance between the pair of holding means 17 A and 17 B for holding L and 2 R is set equal to the distance d between the spectacle lenses 2 L and 2 R in the tray 24.
- Each of the spectacle lenses 2L and 2R mounted on the second mounting table 170 is conveyed to the seventh delivery position T when held by the sixth conveying means 180. It is stored in the empty tray 24 waiting at the seventh delivery position T.
- the seventh delivery position T is located immediately to the right of the sixth delivery position T and behind the first delivery position T.
- a trace stop (not shown) for stopping the empty tray 24 is provided.
- the sixth transport means 180 moves between the sixth delivery position T and the seventh delivery position T.
- the first transporting means 30 drives the trays 24 when the eyeglass lenses 2 L and 2 R are stored in the empty tray 24 waiting at the seventh delivery position T to move the trays 24 to the clean room 7. Transport outside.
- the coating apparatus 1 is configured so that the coating processing of the pair of spectacle lenses 2 L and 2 R is performed simultaneously in parallel, thereby improving the productivity. It is particularly suitable for coating custom-made spectacle lenses. That is, in a conventional processing method in which spectacle lenses are sequentially coated one by one as in a coating apparatus described in Japanese Patent Application Laid-Open No. 2002-177852, when a custom lens is processed. Alternately, apply and cure the coating solution to two lenses of one wearer and apply and cure the coating solution to two lenses of two different wearers. Therefore, in the present invention, the same type of spectacle lens is always processed as a pair, so that the control system can be simplified.
- the spatula mechanism 53 of the coating device 42 removes excess coating solution 63 accumulated on the outer peripheral edge of the coated surface 2a of the spectacle lens 2. To produce a spectacle lens 2 having good appearance quality without forming a thick coating film on the outer peripheral edge, preventing wrinkles from occurring. Can do.
- the spatula mechanism 53 can be manufactured simply and inexpensively by simply attaching the spatula plate 85 made of a thin plastic plate to the holder 83, so that it can be applied to a coating apparatus using the spin coat method. Suitable
- the thickness of the coating solution 63 applied to the outer peripheral surface 2 b of the spectacle lens 2 is smoothed by the lens outer peripheral solution smoothing mechanism 54 of the coating device 42. Therefore, a thick coating film is not formed on the outer peripheral surface 2b, and the generation of wrinkles can be prevented, and the spectacle lens 2 having good appearance quality can be manufactured.
- the lens outer circumference solution smoothing mechanism 54 includes a coating solution removing member 92, a holding mechanism 91 for holding the coating solution removing member 92, and a driving device for expanding and contracting the holding mechanism 91. It is composed of 90 and a commercially available inexpensive sponge is used as the coating solution removing member 92, so the structure can be simplified and it can be manufactured at low cost. is there.
- the coating device 4 2 is provided with the recovery device 14 for the coating solution 3
- the recovered coating solution 63 is reused to reduce the consumption of the coating solution 63. Can be reduced.
- the present invention can be applied not only to spectacle lenses but also to optical lenses such as cameras.
Abstract
Description
Claims
Applications Claiming Priority (2)
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JP2004-061153 | 2004-03-04 | ||
JP2004061153A JP2005246267A (ja) | 2004-03-04 | 2004-03-04 | 塗布装置および光学レンズの製造方法 |
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WO2005084825A1 true WO2005084825A1 (ja) | 2005-09-15 |
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PCT/JP2005/003140 WO2005084825A1 (ja) | 2004-03-04 | 2005-02-25 | 塗布装置及び光学レンズの製造方法 |
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WO (1) | WO2005084825A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006332185A (ja) * | 2005-05-24 | 2006-12-07 | Tokyo Electron Ltd | 基板処理装置、及び基板処理方法 |
EP1947483A1 (en) * | 2005-11-02 | 2008-07-23 | Tokuyama Corporation | Coating equipment |
CN114227050A (zh) * | 2022-01-13 | 2022-03-25 | 北京金雨科创自动化技术股份有限公司 | 变频器igbt生产处理系统 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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BRPI0618203A2 (pt) | 2005-11-04 | 2016-11-16 | Tokuyama Corp | aparelho de revestimento |
JP5004561B2 (ja) * | 2005-11-30 | 2012-08-22 | 株式会社トクヤマ | コーティング装置 |
WO2008093613A1 (ja) * | 2007-02-02 | 2008-08-07 | Tokuyama Corporation | コート層を有するレンズの製造方法 |
JPWO2021015138A1 (ja) | 2019-07-19 | 2021-01-28 |
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JPS5217814A (en) * | 1975-07-29 | 1977-02-10 | Fuji Photo Film Co Ltd | Photoresist coating method |
JPH06201902A (ja) * | 1991-05-20 | 1994-07-22 | Bmc Ind Inc | プラスチック製の眼鏡レンズに耐引っ掻き性コーティングを施すための装置 |
JPH06277615A (ja) * | 1993-03-25 | 1994-10-04 | Seiko Epson Corp | 液体塗布方法 |
JP2000334369A (ja) * | 1999-03-17 | 2000-12-05 | Gerber Coburn Optical Inc | 1つ以上のレンズにコーティングをするための装置 |
JP2000350955A (ja) * | 1999-04-08 | 2000-12-19 | Tokyo Electron Ltd | 膜形成方法及び膜形成装置 |
JP2003045788A (ja) * | 2001-08-02 | 2003-02-14 | Tokyo Electron Ltd | 基板処理方法及び基板処理装置 |
JP2004050108A (ja) * | 2002-07-23 | 2004-02-19 | Tokuyama Corp | コーティング方法 |
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JPS5217814A (en) * | 1975-07-29 | 1977-02-10 | Fuji Photo Film Co Ltd | Photoresist coating method |
JPH06201902A (ja) * | 1991-05-20 | 1994-07-22 | Bmc Ind Inc | プラスチック製の眼鏡レンズに耐引っ掻き性コーティングを施すための装置 |
JPH06277615A (ja) * | 1993-03-25 | 1994-10-04 | Seiko Epson Corp | 液体塗布方法 |
JP2000334369A (ja) * | 1999-03-17 | 2000-12-05 | Gerber Coburn Optical Inc | 1つ以上のレンズにコーティングをするための装置 |
JP2000350955A (ja) * | 1999-04-08 | 2000-12-19 | Tokyo Electron Ltd | 膜形成方法及び膜形成装置 |
JP2003045788A (ja) * | 2001-08-02 | 2003-02-14 | Tokyo Electron Ltd | 基板処理方法及び基板処理装置 |
JP2004050108A (ja) * | 2002-07-23 | 2004-02-19 | Tokuyama Corp | コーティング方法 |
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JP2006332185A (ja) * | 2005-05-24 | 2006-12-07 | Tokyo Electron Ltd | 基板処理装置、及び基板処理方法 |
EP1947483A1 (en) * | 2005-11-02 | 2008-07-23 | Tokuyama Corporation | Coating equipment |
EP1947483A4 (en) * | 2005-11-02 | 2014-02-19 | Tokuyama Corp | COATING EQUIPMENT |
CN114227050A (zh) * | 2022-01-13 | 2022-03-25 | 北京金雨科创自动化技术股份有限公司 | 变频器igbt生产处理系统 |
CN114227050B (zh) * | 2022-01-13 | 2023-09-05 | 北京金雨科创自动化技术股份有限公司 | 变频器igbt生产处理系统 |
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