JPH0215961A - Lens wiping method and wiping device - Google Patents

Abstract

PURPOSE:To make it possible to simultaneously and efficiently wash both faces of a lens to speed up the wiping operation by relatively rotating the lens and washing trays while both the faces of the lens are supplied with washing fluid or after the supply of washing fluid is completed. CONSTITUTION:After plural supporting member and a pair of washing trays 4, 5 are withdrawn to release the outer peripheral face and each face of a lens respectively from the lens-supporting position, a ground lens 1 is transferred to the supporting position. The outer peripheral face of the lens is then held by plural supporting members, and each washing tray 4, 5 is abutted against the faces of the lens. After that, each washing tray 4, 5 and the lens 1 are relatively rotated by a driving device while both faces of the lens are supplied with washing fluid 8 from each nozzle 6, 7 or after the supply of washing fluid is completed. In this instance, the center-axis of the lens and the center-axis of the washing trays are out of alignment, and in accordance with the relative rotation of the lens and the washing trays wiping tools 2, 3 attached to the end parts of the washing trays 4, 5 abut on the surfaces covering the center to the outer periphery of the lens 1, and thereby foreign matters, etc. adhering to both faces of the lens are wiped in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and device for wiping a glass lens.

[Conventional technology]

Traditionally, lenses are cleaned by hand just after polishing, using a cloth or special paper soaked in a mixture of ether and alcohol to remove abrasives, dirt, etc. that have adhered to the lens surface, and then a protective agent is applied to the lens. The surface of the lens was coated to prevent the lens surface from fading or changing due to porcelain, etc., before being stored.As an improvement on this manual process, there is the Japanese Patent Publication No. 61-3626 shown in Figure 8. In the figure, a wiping tool 73 made of, for example, a ferrule 11 having a radius of curvature that pairs with the radius of curvature of a lens 72 is attached to the surface of a cleaning dish 71 that is mounted on a spindle 0 and rotates. On the other hand, the holder 75 attached to the pivot 74 moves up and down while adsorbing the lens 72, so when descending, the lens 72 is held down while pushing down the openable and closable guide plate 76.
2 is brought into contact with the wiping tool 73. As a result, the lens 72 rotates and slides relative to the wiping tool 73, and the cleaning oil 69 removes the deposits on the lens surface. After cleaning, the lens 72 rises, and when adsorption to the holder 75 stops, it falls onto a guide plate 76 and is housed in a container 77.

FIG. 9 shows a method in which the above-mentioned wiping unit is simplified, in which a sponge 82 is used as the cleaning dish 81, a lens 84 is adsorbed to the suction pad 83, and each of the cleaning parts is placed on the rotating cleaning dish 81. While aligning the center axis, rinse with water and wipe off with something.

[Problem to be solved by the invention]

However, the above-mentioned method has the problem that since only one lens surface can be cleaned, cleaning of the other surface must be provided in a separate process, resulting in a long process. Further, in the case of FIG. 8, there is a problem that the cleaning plate is not versatile because the shape of the cleaning plate is formed to match the radius of curvature of the lens. Furthermore, in the case of FIG. 9, the wiping ability is incomplete, and when water is used instead of cleaning oil, the lens surface may become discolored.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a wiping method and a wiping device that can effectively wipe both sides of a lens at the same time and are versatile for cleaning lenses.

[Means and actions for solving the problem] Figure 1 A, B
is a diagram for explaining the present invention in detail, and shows the lens 1 (
(which may be convex or concave) has its outer peripheral surface supported by means for restricting movement in the axial and radial directions. Further, on both sides of the lens l, a cleaning dish 4.5 with a wiping tool 2.3 attached to the end is arranged so that the central axis of the lens and the central axis of the cleaning dish can be shifted or shifted. They are placed opposite each other. In the former case, the size of the wiping tool 2°3 is larger than the radius of the lens l (the amount of displacement is
．． 3 is adjusted so that it comes into contact with the lens l from the center to the outer periphery (Figure A), and in the latter case, the wiping tool 2.3 is adjusted so that it comes into contact with the lens from the center to the outer periphery by moving the cleaning dish 4.5. (Figure B).

Furthermore, nozzles 6.7 for supplying cleaning liquid 8 are arranged toward both sides of the lens l.

With the above-mentioned wiping device, each cleaning dish with a wiping tool attached is brought into contact with the lens surface, and at least one of each cleaning dish and the lens is rotated, and the cleaning liquid is supplied and moved relative to each other, so that the cleaning liquid adheres to both surfaces of the lens. It is used to wipe off foreign objects, etc.

〔Example〕

Hereinafter, the present invention will be described in detail based on Examples.

(First Embodiment) FIGS. 2A and 2B are a plan view and a cross-sectional explanatory view of essential parts of a first embodiment of the present invention.

In the figure, a recess 11 is formed by a narrow diameter portion on the tip side of each of the three equally distributed support shafts 10, and each recess 1
The outer peripheral surface of the lens 1 is held between the lenses 1 and 1. Each of the support shafts 10 is rotatably supported by a support means (not shown) so as to move in the direction a with respect to its center position. (not shown) and rotates in direction b (rotation)
On the upper and lower surfaces of the lens 1, vertically movable cleaning dishes 14 and 15 each having a wiping tool 12 and 13 made of a cylindrical elastic foam attached to the ends thereof are mounted on the upper and lower surfaces of the lens 1. They are arranged facing each other with their rotation center axes at positions offset from the position (corresponding to the central axis of the lens), and are connected to a drive source (not shown) so as to rotate in the C direction.

The size of the wiping tool 12.13 is larger than the radius of the lens 1, and the amount of deviation between the center axis of the lens and the center axis of the cleaning dish is such that the wiping tool 12.13 contacts the lens from the center to the outer periphery (fl ) has been adjusted as follows. Further, nozzles 16 and 17 for supplying cleaning liquid, which open toward each lens surface, are arranged on the upper and lower surfaces of the lens.

A method for wiping lenses using the above device will be described. The washing plates 14 and 15 arranged opposite to each other are retreating upward and downward, and the three support shafts 10 are also retreating in directions C that are opposite to each other. Under this condition, the lens 1 is transported by a transporting means (not shown), such as a robot or fingers that clamps the outer peripheral surface of the lens, and is positioned at the height of the recess 11 of each support shaft 10, and each support shaft 10 is moved forward. to sandwich the outer peripheral surface of the lens 1. Then, the conveying means is moved backward. Next, the support shaft lO connected to the driving means is rotated (in the b direction) to rotate the lens 1 between the support shafts 10 (in the d direction).
At the same time, the cleaning liquid 18, for example, a petroleum-based water displacement type cleaning liquid, is discharged and supplied from the nozzle 16.17 to the cleaning plate 14.1.
5 close to the lens surface and rotate each (in direction C) while touching the wiping tools 12 and 13. In this way, wipe both sides of the lens at the same time. After the wiping work is completed, clean from both sides of the lens. After separating the plates 14 and 15 and stopping their rotation, and stopping the supply of the cleaning liquid 18, the rotation of the support shafts 10 is stopped, and the outer peripheral surface of the lens is held between the conveying means, and the support shafts 10 are separated from each other. Remove lens l, supply a new lens and repeat the wiping operation.

According to this embodiment, since the lens l is rotated while being held by the support shaft lO having the recessed portion 11, both sides of the lens can be wiped off at the same time.

Further, by appropriately setting the shape of the recess 11 of the support shaft 10, the amount of movement of the support shaft 10 in the C direction, and the size of the cleaning dish 14, 15 depending on the shape of the lens, a wide range of applications can be achieved.

In the above embodiment, the nozzles 16 and 17 for discharging and supplying the cleaning liquid 18 are used to supply the lens l.

If the configuration is such that the lens approaches the lens l and moves away from the lens m in accordance with the ejection, it becomes easier to perform the supply and ejection operations. Further, the number of support shafts 10 that hold and rotate the lens 1 is not limited to three, and may be increased as necessary.

(Second Embodiment) A second embodiment of the present invention will be described based on FIGS. 3A and 3B. In the following embodiments, the same reference numerals are used for the same members as in FIG. 2 of the first embodiment, and detailed explanation thereof will be omitted.

In the figure, cleaning plates 21.22 are fixed to opposite ends of arms 19.20 extending in the center direction of each support shaft 10 supporting the lens 1. The cleaning plates 21 and 22 (or they may be rotatably arranged) are each formed by covering a felt core with a synthetic fiber cloth and have a smaller diameter than the lens l. The proximal ends of the arms 19 and 20 are connected to the support base 24 via each support shaft 23, and are configured to be rotatable in the C direction by actuators 25 and 26, respectively. Further, the support stand 24 is connected to a drive means (for example, an actuator), not shown, so as to move forward and backward (downward) toward the center.

A method of wiping using the above device will be described. The cleaning dishes 21 and 22 are opened in opposite directions by actuating the actuators 25 and 26, and the support base 24 is moved back from the center of each support shaft 10. Then, by the same method and procedure as in the first embodiment, the lens 1 is held between the respective support shafts lO, and the lens l is rotated (in the d direction).
let

Next, the support base 24 is advanced and the actuator 2 is moved forward.
5.26, the cleaning plates 21 and 22 are closed in the direction of approaching each other and brought into contact with the vicinity of the center of the lens l. Before or after this contact, alcohol is supplied as a cleaning liquid 18 from each nozzle 16 and 17 to both surfaces of the lens. Then, while supplying alcohol, the support stand 24 is slowly moved back from the center position to wipe both sides of the lens. After wiping down to the outermost part of the lens 1, the support stand 24 is moved to the most retracted position. Washing pan 21.22 with actuator 25.2
6, the supply of the cleaning liquid 18 is stopped, the rotation of the support shaft 10 is stopped, the lens after cleaning is taken out, the next new lens is supplied and attached, and the above-mentioned wiping operation is repeated.

In this embodiment, in addition to the same effects as in the first embodiment, since the cleaning dish can be made small, the ability to wipe the lens surface is stabilized regardless of the lens shape.

(Third Embodiment) A third embodiment of the present invention will be described based on FIGS. 4A and 4B.

In this embodiment, the support shaft 30, which is movable in the direction a like the support shaft 10 and rotated by a drive means (not shown), is extended on both sides above and below other support shafts 10 (as well as The cleaning trays 31 and 32 are fitted onto the support shaft 30 and are mounted so as to move up and down and rotate integrally (for example, in the relationship between a spline shaft and its receiving shaft). The plates 31 and 32 each have wiping tools 33 and 34 made of a hollow cylindrical elastic foam body disposed opposite each other at their tips, and roller guides 35 and 36 formed on the back side.

The shaft portion 38 of each roller 37 rotatably disposed to engage with the roller guide 35, 36 is connected to a movable platform 39, 40 that is slidably guided in the g direction by an actuator (not shown). It fits into each cylindrical portion 41 of. When the washing dishes 31 and 32 move forward and backward in the direction a, they are guided accordingly. Note that M35a and 36a of the roller guides 35 and 36 are removed and the support shaft 30
By pulling out the cleaning tray 31, 32 from the support shaft 30 and pushing the shaft portion 38 of each roller 37 into the cylindrical portion 41,
The cleaning tray 31 and 32 can be replaced. Note that a compression spring is arranged inside each cylindrical portion 41 so that the roller 3
It is convenient to bias 7 toward the roller guide 35° 36 side.

A method of wiping using the above device will be described. As in the previous embodiment, each support shaft 30.10 is retracted in the a direction, and the movable platforms 39.40 are separated from each other in the g direction and released. Then, a conveyance device (not shown) conveys the lens l to a position at the height of the concave portion 11 of each support shaft 30.10, and moves each support shaft 30.10 close to the center position of the lens 1. Grinding oil or the cleaning liquid of the above embodiment is applied as cleaning liquid 18 to the nozzle 1 while holding the outer circumferential surface.
By rotating the support shaft 30 while feeding from 6.17, the lens 1 and the cleaning dish 31°32 are rotated, and the movable stages 39 and 40 are moved in the g direction to approach each other, so that each roller 3
The cleaning plates 31 and 32 are brought into contact with both sides of the lens 1 through the wiping plates 7 and 7, and the wiping operation is performed.After wiping is completed, the lens after the wiping operation is taken out by performing the operation opposite to the above.

This embodiment not only provides the same effects as the first embodiment, but also simplifies the device.

As the wiping tool provided at the tip of each cleaning dish, a brush-like wiping tool that is resistant to cleaning liquid and is implanted as shown in FIG. 4C can also be used.

(Fourth Embodiment) A fourth embodiment of the present invention will be described based on FIGS. 5A and 5B.

In the figure, the outer circumferential surface of the lens 1 is held between the recesses 11 of the two support shafts 42 and a recess 44 formed on the side surface of the long moving rail 43 and having the same cross-sectional shape as the recess 11. That is, the two support shafts 42 in which the recesses 11 are formed
The wheels are rotatably supported by support means (not shown) in the same way as in the above embodiment, and the mutual spacing between the two wheels can be adjusted, and the wheels are pressed against the moving rail 43 in the direction (h direction). Supported. One end of the moving rail 43 is connected to an actuator 44, and is configured to reciprocate in the i direction. In addition, the upright portions 43a on both the upper and lower sides of the moving rail 43 are provided with a swing tff via the support shaft 23, respectively.
145.46 is pivoted. This rocker 45.46
A cleaning arm 49.50 (corresponding to a cleaning plate) having a long cleaning brush 47.48 as a removal tool is disposed facing each other on the lens mounting side, and a linear actuator 51 is installed on the opposite side of the drawing board. Connect 45 and 46 to make cleaning arm 49゜5
It is arranged so that it oscillates at 0.

A method of wiping using the above device will be described. First, the cleaning brushes 47 and 48 are opened by the operation of the linear actuator 51 (and each support shaft 42 is also opened by the movement rail 43).
Move back in the h direction.

Then, after positioning the lens l at a predetermined height between the moving rail 43 and each support shaft 42 by a conveying means (not shown),
Each support shaft 42 is moved toward the moving rail 43 (in the h direction), and the outer peripheral surface of the lens 1 is held at three locations. Thereafter, the actuator 51 closes the cleaning brushes 47 and 48 so that they come into contact with both surfaces of the lens, and then reciprocates the moving rail 43 in the i direction while supplying the cleaning liquid 18. After the lens 1 is rotated by the reciprocating movement and the cleaning brushes 47 and 48 are used to wipe both sides of the lens,
Remove the lens by reversing the above steps.

In this embodiment, since the wiping operation can be performed while also transporting the lens, automation is easy and the wiping processing capacity can also be improved.

Note that, instead of reciprocating the movable rail 43, the work can be performed in the same way by moving each support shaft 42 parallel to the movable rail 43.

(Fifth Embodiment) A fifth embodiment of the present invention will be described based on FIGS. 6A and 6H.

Support rods 53 are fitted in the annular support plate 52 at equal intervals, and each support rod 53 is supported by fixing the rod end of the actuator 54 mounted inside each support rod 53 to the support vi52. The plate 52 can be slid in the radial direction (a direction). As each support rod 53 moves, the outer peripheral surface of the lens l conveyed to the center of the support plate 52 is clamped or released. (Figure A shows the clamped state) Above and below the support plate 52 are eccentric shafts 55 each having a central axis of rotation approximately parallel to the axis passing through the center of the support plate 52.
．． 56 is placed. Each of the eccentric shafts 55 and 56 has a cleaning brush 57.5 at a position opposite to the rotation center axis.
A washing pan 59.times.60 having a diameter of 8 is rotatably supported.

The diameter of the cleaning brushes 57, 58 is formed to be larger than the radius of the lens l, and the amount of eccentricity is set such that the cleaning brushes 57, 58 cover the lens from the center to the outer periphery. A nozzle 63,64 is arranged inside each eccentric shaft 55,56. Each of the eccentric shafts 55 and 56 is rotatable (in the j direction) by a motor (not shown), and movable in the direction of the rotation axis (vertical direction) by an actuator (not shown).

A method of wiping using the above device will be described. With the washing dishes 59 and 60 being retracted upward and downward via the eccentric shafts 55 and 56, each support rod 53 is retracted, and the support plate 52
Position the lens l at the center of the
Then, each support rod 53 is moved forward to press and hold the outer peripheral surface of the lens 1.

Next, the eccentric shafts 55.56 are advanced from above and below to cover both surfaces of the lens 1 with the cleaning dishes 59.60, and the eccentric shafts 55.56 are moved forward while the cleaning liquid 18 is supplied from the nozzles 63.64.
Rotate 56. At this time, the cleaning plates 59, 60 are rotated due to the frictional force generated between the cleaning brushes 57, 58 and the lens 1.

After the wiping operation is completed, the lens is moved in the reverse order to the above, and after the lens I is taken out, a new lens is supplied.

According to this embodiment, both sides of the lens can be wiped simultaneously without rotating the lens, the lens can be easily held, and the wiping tool can be placed at an appropriately effective position.

Although the axes of the eccentric shafts 55 and 56 and the axes of the cleaning dishes 59 and 60 are arranged parallel to each other in the explanation, they may be arranged so as to be inclined as appropriate depending on the shape of the lens.

In addition, a seventh member is used as a member to press and hold the entire outer peripheral surface of the lens 1.
A pair of V-shaped support arms 65 having a thickness thinner than the edge thickness of the lens as shown in FIGS. A and B may be used so as to move back and forth.

In each of the above embodiments, the axis of the lens to be wiped has been explained in the vertical direction, but the direction can be set as appropriate. In addition, when wiping a convex lens, etc., the nozzle that discharges the cleaning liquid is installed at multiple locations so that the cleaning liquid is discharged from the direction perpendicular to the outer circumferential surface of the lens (for example, the nozzle indicated by the dotted line in No. 7 EA and B). It is also possible to distribute them equally.

〔Effect of the invention〕

As described above, according to the method and apparatus of the present invention, both surfaces of the lens can be effectively cleaned at the same time, so the wiping work can be completed in a short time, and the cleaning dish is versatile, making it economical. Furthermore, automation of lens wiping work can be achieved with high reliability.

[Brief explanation of the drawing]

FIGS. 1A and 1B are detailed illustrations of the present invention, and FIGS.
B is a plan view and side view showing the first embodiment of the present invention, FIGS. 3A and B are plan views and side views showing the second embodiment, and FIGS. 4A, B, and C are the third embodiment. FIGS. 5A and 5B are a plan view and a sectional view showing the fourth embodiment, and FIGS. 6A and B are a plan view and a sectional view showing the fifth embodiment. , FIGS. 7A and 7B are sectional views and plan views showing a modification of FIGS. 6A and 6B, and FIGS. 8 and 9 are explanatory diagrams of a conventional cleaning device and cleaning method. 1... Lens 2, 3.12.13.33.34... Wiping tool 6,
7.16.1? , 63.64...Nozzle 8.18
...Cleaning liquid 10, 30.42...Support shaft (support member) 11, 44
... Concavity 43 ... Moving rail (support member) 47, 48.57.58 ... Washing brush (wiping tool) 49, 50 ... Washing arm (washing plate) 53 ... Support rod (support members) 55, 56... Eccentric shaft 65... Support arm (support member)

Claims (2)

[Claims] (1) In a method of wiping off a lens surface after polishing, a plurality of supporting members and a pair of cleaning dishes are moved back from the supporting position of the lens so as to release the outer circumferential surface of the lens and each lens surface, and then returned to the supporting position. The lens is conveyed, and then the outer circumferential surface of the lens is held between a plurality of supporting members, each cleaning plate is brought into contact with the lens surface, and the lens and each cleaning plate are rotated relative to each other while supplying cleaning liquid to both sides of the lens. A lens wiping method characterized by wiping away at the same time. (2) A plurality of support members that move forward and backward to pinch or release the outer peripheral surface of the lens, a pair of cleaning dishes provided on each lens surface side of the lens and having a wiping tool at the end, and each lens surface. a nozzle that discharges a cleaning liquid toward each of the lenses, and a drive means that can shift the central axes of the lens or the pair of cleaning dishes held by the support member, or that can be shifted by a moving means and rotates at least one of the lenses. What is claimed is: 1. A lens wiping device comprising: a lens wiping device, which wipes each lens surface simultaneously by supplying a cleaning liquid while moving the lens and a cleaning dish relative to each other.