JPH10217345A - Control apparatus of automatic lens sumi (india ink) coating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically determine an operation of a sumi (India ink) coating head. SOLUTION: In a control apparatus of an automatic lens sumi (India ink) machine wherein the centering of a lens 14 is performed by a pair of centering heads 12a, 12b while the lens 14 is held to a freely rotatable, suction cyclinder 11 and sumi (india ink) coating heads 34a, 34b are subsequently allowed to approach the lens 14 and the outer peripheral surface and end surface of the lens are coated while the lens 14 is rotated, the outer peripheral surface and end surface of the centered lens 14 and the end surfaces of the sumi coating heads 34a, 34b present at an arbitrary position are projected as images and the end points of the respective surfaces of the images are electrically processed to calculate the coordinates of the respective end points by an image processing apparatus 40 and the operation positions of the sumi coating heads 34a, 34b are determined on the basis of the calculation results of the image processing apparatus 40 by a calculation apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an automatic lens sanitizing machine which determines the operation of a sanitizing head for applying blackening for shading to the outer peripheral surface of a lens or the like.

[0002]

2. Description of the Related Art Conventionally, the technology of an automatic lens inking machine has been disclosed in Japanese Patent Application Laid-Open No. 3-296449. As shown in FIG. 7, a first sanitizing head 5 is provided in this sanitizing machine.
The first and second sanitizing heads 52 are horizontally arranged on a base (not shown) with a lens holder 53 interposed therebetween. The first and second sanitizing heads 51 and 52 are provided with support portions 54 and 5 respectively.
4, and these support portions 54 are supported by the respective support portions 5.
4 is fixed to a first slider (not shown) arranged on the lower surface of the fourth slider 4. Below the first slider, second sliders 55, 55 for holding the first slider slidably in the direction of the lens 50 held by the lens holder 53 are provided on a base. The second sliders 55, 55 are provided so as to be movable in the same direction as the sliding direction of the first slider, and by moving the second sliders 55, 55, the first and second inking heads 51 are moved. , 52 to a lens holder 53
The head 50 moves in the direction of the lens 50 held by the head unit, and the head main body tips 51a and 52a contact the outer peripheral surface of the lens 50. The rods of the air cylinders 56, 56 fixed on the base are fixed to the second sliders 55, 55.
6 and 56, the first and second black ink heads 51,
A movement of 52 is made. The air cylinders 56, 56,
That is, the stop positions of the second sliders 55 and 55 are changed each time the stopper position is manually adjusted according to the size of the lens 50. The adjustment of the stopper position is performed by the micrometer 58.

That is, the first and second blackened heads 5
Micrometers 58, 58 are mounted on support portions 54, 54 to which the micrometers 58, 58 are mounted via mounting members 57, 57, and an abutment block on which a head 58a of each micrometer 58, 58 is locked on a base. 59,5
9 is attached, the amount of projection of the tip head 58a is set in accordance with the outer diameter of the lens by the amount of rotation of each micrometer 58, and when each tip head 58a comes into contact with the abutment block 59, the first and second The head end portions 51a, 52a of the second black ink heads 51, 52 are in contact with the outer peripheral surface of the lens 50. In the drawing, reference numerals 60 and 61 denote first and second centering heads for centering the lens 50 held in the lens holder 53, and 62 and 63 denote first and second centering heads 60. , 61 is a micrometer that regulates the amount of movement of the first centering head 60.

[0004]

At present, the production form of most products in all fields is multi-product small-lot production, and lenses are no exception, and lenses having different shapes are produced in small lots every day. Under such circumstances, what is required of an automatic lens sanitizing device is how to quickly and accurately teach the operation of the sanitizing head with a small amount of work corresponding to a plurality of lenses having different shapes. It is. However, in the prior art, it is necessary to manually adjust the stop positions of the blackening heads 51 and 52 according to the shape of the lens 50 to be blackened by a person, which is very troublesome and hinders an improvement in productivity. become. In addition, the probability of mistakes due to human intervention increases.

Accordingly, an object of the present invention is to provide a control device of an automatic lens sanitizing machine capable of automatically determining the operation of the sanitizing head.

[0006]

In order to achieve the above object, a control apparatus of an automatic lens sanitizing machine according to the present invention, wherein the lens is held while the lens is held on a rotating shaft having suction means. After performing the centering, in the control device of the automatic lens sanitizing machine that paints the outer peripheral surface and the end surface of the lens while rotating the lens by bringing the inking head close to the lens,
Image processing means for projecting an outer peripheral surface and an end face of a lens and an end face of a black-painted head as an image, electrically processing end points of each surface of the image to calculate coordinates of each end point, and calculation results of the image processing means And a calculating means for determining the operating position of the inking head based on the above.

According to a second aspect of the present invention, there is provided a control device for an automatic lens sanitizing machine according to the first aspect, wherein the image processing means is configured to project the outer peripheral surface and the end surface of the lens and the end surface of the sanitizing head as images. And a control unit for electrically processing the end points of each surface of the image to calculate the coordinates of each end point.

In a third aspect of the present invention, there is provided a control device for an automatic sanitizing machine according to the first aspect, wherein the calculating means calculates a moving amount of the sanitizing head, and calculates the moving amount of the sanitizing head according to the moving amount. Is configured to output a signal for controlling the driving means.

The operation of the control device of the automatic lens sanitizing machine of the present invention will be described. According to the first aspect of the present invention, the image processing means captures, as an image, the outer peripheral surface and the end surface of the centered lens to be sanitized and the end surface of the sanitized head, and electrically connects the end points of each surface of the image. To calculate the coordinates of each end point. The calculating means determines an operating position of the sanitizing head, that is, a moving amount for the sanitizing head to contact the outer peripheral surface and the end surface of the lens, based on the calculation result of the image processing means.

According to a second aspect of the present invention, the camera unit projects the inking head and the lens on the same screen, and the control unit uses the image data taken in by the camera unit to control the outer periphery of the centered lens for inking. The coordinate positions of the end points of the face and the end face and the end point of the end face of the black ink head are calculated.

Further, according to claim 3, the calculating means is based on the data measured by the image processing means.
Calculate the data for lens sanitizing, that is, the operating position of the sanitizing head, and operate the sanitizing head driving means to move to the position where the outer peripheral surface and the end surface of the centered lens are to be sanitized according to the calculation result. I do.

That is, the control device of the automatic lens sanitizing machine according to the present invention comprises: a camera unit capable of photographing the sanitizing head and the lens on the same screen; and an image data captured by the camera unit. Image processing means capable of calculating the end points of the lens and each end point of the outer peripheral surface and the end surface of the lens, and calculate the data for the lens sanitization, that is, the operating position of the sanitization head, based on the data measured by the image processing means. Calculating means for performing an action to perform, for example, moving the sanitizing head in accordance with the calculation result.
By using a motor controller capable of driving the shaft servomotor to perform black ink by bringing the black ink head into contact with the outer periphery or the end face of the lens, the XY table equipped with the black ink head is placed on a certain plane. Is moved in parallel, the inking head moves in parallel on a certain plane, and the outer peripheral surface and the end surface of the lens are inked with the inking head.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

[Embodiment] An embodiment of the present invention will be described with reference to the drawings. First, the schematic configuration of the automatic lens sanitizing machine is shown in FIGS.
This will be described with reference to FIG. 1 and 2 show an automatic lens sanitizing machine, FIG. 1 is a front view, FIG. 2 is a plan view showing a partial cross section, FIG. 3 shows a sanitizing head, and FIG.
Is a left side view, and FIG. 3B is a plan view.

In the automatic lens sanitizing machine, a lens suction rotary centering unit 10, a sanitizing unit 30, and an image processing device 40, which are constituent units, are assembled on a base 1. The base 1 withstands the load even when the lens suction rotation centering unit 10, the black coating unit 30, and the image processing device 40 are assembled on the upper surface thereof.
It is a flat plate that does not deform.

The lens suction rotation unit 10 is provided with a cylindrical suction tube 11 having a suction hole 11a for sucking the lens 14. This adsorption cylinder 11
It is mounted on a support 16 erected on the upper surface of the base 1 in parallel with the upper surface of the base 1 and is rotatably provided via a rotary bearing 17a. An adsorbing portion 11b that adsorbs and holds the lens 14 is provided at the tip of the adsorbing cylinder 11. The suction portion 11b is formed of a soft material such as a synthetic resin so as not to damage the lens 14 to be held by suction. A pulley 15a is attached to a rear part of the suction cylinder 11 opposite to the suction part 11b so as to sandwich the support 16 between the suction part 11b and the suction part 11b. On the other hand, a motor 13 is fixed on the upper surface of the base 1.
Pulley 15b attached to the rotary shaft of
The rotation of the motor 13 enables the suction cylinder 11 to rotate. A rotary joint 17 is attached to the rear end of the suction tube 11.
Is connected to a connection tube 18. A vacuum generator 19 is connected to the connection tube 18, and suction pressure from the vacuum generator 19 is applied to the connection tube 18, the rotary joint 17,
Suction section 11b through suction hole 11a and suction section 11b
On the lens 14 to be held.

Cylinders 20a and 2 are disposed in the vertical direction with respect to the upper surface of the base 1 and vertically so as to sandwich the lens 14 to be sucked and held by the suction tube 11.
The centering heads 12a and 12b connected to the rod 0b are arranged to face each other. The cylinder 20a is fixed to the upper surface of the base 1, and the cylinder 20b is fixed to the lower surface of the support plate 21 attached to the upper end of the support 16. The centering heads 12a and 12b have V-shaped claws formed at opposite ends, and the centering heads 12a and 12b are raised and lowered by driving the cylinders 20a and 20b. The centering of the lens 14 is possible by sandwiching the outer peripheral surface of the lens 14 held by suction from below and above. The upper limit of the movable position of the centering head 12a located below the suction tube 11 is determined by the center axis of the lens 14 when the outer peripheral surface of the lens 14 contacts two V-shaped surfaces of the V-shaped claw. The position is adjusted so that the rotation axes of the suction cylinders 11 coincide. That is,
By adjusting the movable upper limit position of the centering head 12a, a centering operation can be performed in response to a change in the diameter of the lens 14. Adjustment of the upper limit position of the centering head 12a
Perform as follows. A mounting plate 22 for mounting a micrometer is fixed to the lower surface of the centering head 12a.
The micrometer 23 is fixed vertically.

On the other hand, on the side of the suction tube 11 on the support 16, a contact plate 24 engaging with the tip of the head 23 a of the micrometer 23 has its lower surface aligned with the horizontal center axis of the suction tube 11. And is fixed to the support 16. Therefore, by changing the amount of protrusion of the head 23a of the micrometer 23 engaged with the lower surface of the contact plate 24 according to the outer diameter of the lens 14, the centering head 12a
Adjustment of the upper limit position that enables the movement of the camera. Further, since the pressure of the cylinder 20b on the side of the centering head 12b is smaller than the pressure of the cylinder 20a on the side of the centering head 12a, the upper limit position is set when the centering heads 12a and 12b hold and center the lens 14. The specified height position of the centering head 12a is not changed.

An XY table 31 is one of the components of the sanitizing unit 30, and its upper surface is parallel to the upper surface of the base 1. XY table 31 is Y axis 3
2, the Y axis 32 is mounted orthogonal to the X axis 33, and the X axis 33 is fixed to the upper surface of the base 1. Each of the Y-axis 32 and the X-axis 33 is composed of a servomotor 32a, 33a, a coupling 33b (the Y-axis is not shown), a ball screw 33c (the Y-axis is not shown), a guide rail (not shown), and the like. Axis 3
2. The X-axis 33 constitutes a general XY orthogonal coordinate type robot. That is, the XY table 31
Is controlled by each of the drive motors (servo motors 32a and 33a) to freely move in the X direction (the direction orthogonal to the axis of the suction tube 11) and the Y direction (the direction parallel to the axis of the suction tube 11). ing.

On the upper surface of the XY table 31, two sanitizing heads 34a and 34b for sanitizing the outer peripheral surface of the lens 14 are fixed. As shown in FIG. 3, the two black ink heads 34a and 34b include a holder 34c fixed on the upper surface of the base 1, a cylindrical resin chip 34d attached to the holder 34c, and the like. Is detachably fixed by a set screw 34e so that one end thereof protrudes from the holder 34c. Tube 37 for supplying black ink to holder 34c
a and 37b are inserted, and the black ink can be directly supplied to the resin chip 34d. Of the two sanitizing heads 34a and 34b, the sanitizing head 34a is disposed so that the axis of the resin chip 34d is perpendicular to the axis of the suction tube 11, and the sanitizing head 34b is positioned on the resin chip 34d. The X-axis is arranged so that the axis is parallel to the axis of the adsorption cylinder 11, and the tip of each resin chip 34 d is oriented in the direction in which the adsorption cylinder 11 is located.
The Y table 31 is fixed at an arbitrary position on the upper surface. Although the case where the resin chip 34d has a cylindrical shape has been described, the resin chip 34d is not limited to this, and may be a rectangular tube or any shape that can be held by the holder 33c.

The tubes 37a and 37b for supplying the black ink to the black ink heads 34a and 34b are respectively provided with the respective paint cartridges 36a and 36a containing the black ink.
36b, and is supplied with black ink. Further, the paint cartridges 36a, 36b are connected to the dispenser 35 via tubes 39a, 39b, and receive pressure for supplying the black paint to the black paint heads 34a, 34b.

Above the centering unit, an image processing apparatus 40 having a built-in camera unit is arranged.
The upper end of the reference numeral 0 is fixed to the support 16 via a bracket 41. The camera unit of the image processing device 40 is configured to move the X-
Inking head 34 fixed to the upper surface of Y table 31
a and 34b can be contained in the screen as shown in FIG.

Next, a schematic operation of the automatic lens inking machine according to the present embodiment will be described. First, the suction unit 1 of the suction cylinder 11
The lens 14 supplied to 1b manually or by a robot or the like is suction-held at the tip of the suction portion 11b of the suction tube 11 by the suction pressure of the vacuum generator 19. After the lens 14 is held, the centering head 1 is moved by the cylinders 20a and 20b.
2a and 12b are raised and lowered, and the lower part of the outer peripheral surface of the lens 14 is supported by the claw of the centering head 12a whose movable upper limit position is set by the micrometer 23 and the abutment plate 24. The lens 14 is held by pressing the upper side of the outer peripheral surface of the lens 14 with the lens 14, and the lens 14 held by the suction portion 11 b is
The center of the lens 14 is adjusted so as to coincide with the center of rotation of. Thereafter, the pair of centering heads 12a and 12b are separated from the lens 14, and the motor 13 rotates the lens 14 together with the suction tube 11 via the pulley 15b, the belt 12, and the pulley 12a. On the other hand, the XY table 31
The resin chip 3 of the sanitizing head 34a moved by driving the Y axis 32 and the X axis 33 and fixed to the XY table 31
4d moves to a position where it contacts the outer peripheral surface of the lens 14, or a position where the resin chip 34d of the black ink head 34b contacts the end surface of the lens 14. Then, the resin chip 34
The blackening of the lens 14 is performed by the blackening paint supplied to d.

Next, details of the present embodiment will be described. FIG. 5 is a block diagram of constituent elements that are features of the present embodiment, and the constituent elements are electrically connected.
The image processing device 40 includes a lens 14 and centering heads 34a and 34b held by the suction tube 11 as shown in FIG.
From a camera unit 41 that projects the image of the camera unit 41 and a control unit 42 that electrically processes the image projected by the camera unit 41 and calculates arbitrary coordinates of the object (the lens 14 and the centering heads 34a and 34b) on the screen. It is configured.

The image processing device 40 measures the distance between the outer peripheral surface and the end surface of the lens 14 and the sanitizing heads 34 a and 34 b by the camera unit 41 and the control unit 42, and sends the measurement result to the calculating device 44. A calculation formula for determining the operation of the XY table 31 is programmed in the calculation device 44, and the XY formula is determined based on the measurement result of the image processing device 40.
The operation position data of the table 31 is calculated. A motor controller 45 is connected to the calculation device 44,
The operation position data derived from the result of the above calculation is sent to the motor controller 45. The motor controller 45 is connected so that a pulse train for operating the servo motors 47a and 47b can be transmitted to the servo driver 46 based on the program stored in advance and the operation position data from the calculation device 44. . The servo driver 46 generates a current for driving the servo motors 47a and 47b according to the pulse train from the motor controller 45. Servo motor 47a,
Reference numeral 47b denotes servomotors 32a and 33a which are components of the Y-axis 22 and the X-axis 23 in FIGS.

Next, FIG. 6 will be described below before describing the operation of the present embodiment. FIG. 6 shows an image processing device 40.
5 is an example of an image captured by the camera unit 41 of FIG.
This is an example in which a lens 14 that is concave on both sides and has a thrust surface is adsorbed to the adsorption cylinder 11, and alphabets in the figure indicate coordinates, which will be described below. Point O is the center position of the image by the image processing device 40, and XY
Let it be the reference point (0,0) of the coordinates. The points (a, b) are the positions of the end points of the outer peripheral surface on the side (upper side in the drawing) of the lens 14 having the origin at the point O. Point (c, d) is the non-adsorbed surface (lower side) of lens 14 whose origin is point O
Of the end point of the outer peripheral surface of. Point (e, f) is the position of the end point on the center side of the lens 14 on the thrust surface with the point O as the origin. The points (g, h) and (i, j) are positions up to the reference point of the sanitizing head 24 with the point O as the origin.

Next, the operation of the present embodiment will be described with reference to FIGS. When blackening the outer peripheral surface and the thrust surface of the lens 14 as shown in FIG.
Is the resin chip 34d of the sanitizing head 34a (hereinafter referred to as A of the sanitizing head 34a), and the outer peripheral surface of the lens 14 is
The resin chip 34d of the sanitizing head 34b (hereinafter, referred to as B of the sanitizing head 34b) operates to blacken the thrust surface of the lens 14. Inking head 34 for that
First, in order to obtain the moving distances of A of A and B of the blackening head 34b, when blackening the outer peripheral surface of the lens 14,
The coordinates of the points (a, b) and (g, h) are measured by the image processing device 40, and the measurement data is sent to the calculation device 44.
Then, the calculation device 44 calculates X based on the given data.
Perform the following calculations to move the Y table 31:

(Calculation) Assuming that the moving distance per pulse of the XY table 31 is P, the XY table 31
Number of movement pulses of the X axis 33 to be moved in the direction: Lag, X−
The number of movement pulses Lbh of the Y axis 32 for moving the Y table 31 in the Y direction is obtained as follows. Lag = (ag) / P Lbh = (bh) / P

With the above calculations, the movement data (number of movement pulses) of the XY table 31 is calculated. Computing device 4
4 sends the calculation result to the motor controller 45. In response to this, the motor controller 45 sequentially sends a pulse train for the number of pulses corresponding to the moving distance of the XY table 31 to the servo driver 46, and further receives the pulse train, and the servo driver 46 receives the pulse train from the servo motor 47a (32
a) and 47b (33a) are driven, and as a result, A of the black ink head 34a is brought into contact with the outer peripheral surface of the lens 14. At this time, the point (a, b) of the lens 14 and the black ink head 34a
The point (g, h) of A in FIG. Next, the image processing device 4
0, points (c, d) and points (g, h) (points (g,
h) is displayed as the coordinate position of the inking head 34a. In this case, the coordinates of the coordinates (a, b) that are the points a and b of the lens 14 are measured as described above,
The measurement data is sent to the calculation device 44. The calculation device 44 performs the following calculation for moving the XY table 31 based on the given data.

(Calculation) Assuming that the moving distance per pulse of the XY table is P, the number of moving pulses of the X axis 33 is L
cg, the number of movement pulses of the Y-axis 32: Ldh: Lcg = (c−g) / P Ldh = (dh) / P

With the above calculations, the movement data (number of movement pulses) of the XY table 31 is calculated. Computing device 4
4 sends the calculation result to the motor controller 45. In response, the motor controller 45 sequentially sends out a pulse train for the number of pulses corresponding to the moving distance to the servo driver 46, and further receives the pulse train,
Are the servo motors 47a (32a) and 47b (33a)
Is driven, and as a result, A of the inking head 34a is
4, while being kept in contact with the outer peripheral surface, the point (g, h) is changed to the point (a,
b) to point (c, d),
The outer surface of the lens 14 can be blackened with A (resin chip 34d).

When further blackening the thrust surface,
The coordinates of the point (e, f) of the lens 14 and the point (i, j) of the point B of the sanitizing head 34b are measured by the image processing device 40, and the measurement data is sent to the calculating device 44. Then, the calculation device 44 performs the following calculation for moving the XY table based on the given data.

(Calculation) Assuming that the moving distance per pulse of the XY table is P, the number of moving pulses Le of the X axis 33 is Le.
i, the number of movement pulses of the Y axis 32: Lfj is given by: Lei = (ei) / P Lfj = (fj) / P

With the above calculations, the movement data (number of movement pulses) of the XY table 31 is calculated. Computing device 4
4 sends the calculation result to the motor controller 45. In response, the motor controller 45 sequentially sends out a pulse train for the number of pulses corresponding to the moving distance to the servo driver 46, and further receives the pulse train,
Are the servo motors 47a (32a) and 47b (33a)
Is driven, and as a result, B of the inking head 34b is
4 is brought into contact with the thrust surface. At this time, the point (e, f) matches the point (i, j). Next, the point (c, d) and the point (i, j) (the point (i, j) of B) are displayed as the coordinate position of the sanitizing head 3ba by the image processing device 40. In this case, as described above, The coordinates of the coordinates (e, f), which are the points e and f of the lens 14, are measured, and the measurement data is sent to the calculation device 44. The calculation device 44 performs the following calculation for moving the XY table based on the given data.

(Calculation) Assuming that the moving distance per pulse of the XY table is P, the number of moving pulses of the X axis 33 is L
ci, the number of movement pulses of the Y-axis 32: Ldj: Lci = (ci) / P Ldj = (dj) / P

With the above calculations, the movement data (number of movement pulses) of the XY table 31 is calculated. Computing device 4
4 sends the calculation result to the motor controller 45. In response, the motor controller 45 sequentially sends out a pulse train for the number of pulses corresponding to the moving distance to the servo driver 46, and further receives the pulse train,
Are the servo motors 47a (32a) and 47b (33a)
Is driven, and as a result, B of the inking head 34b is
4 and the point (i, j) is changed to the point (e,
f) to the point (c, d),
The thrust surface of the lens 14 can be blackened with B (resin chip 34c). Even if the diameter of the lens 14, the inner diameter of the thrust surface, the lens thickness, etc. are changed, the movement of the XY table 31 is calculated by measuring the coordinates of each point by the image processing device 40 by the above operation. Becomes possible.

As described above, according to the present embodiment, even if the lens to be blackened is changed so that the outer peripheral thickness, outer diameter, and length of the thrust surface are different, the blackened head can be used. It is possible to automatically teach the movement positions of 34a and 34b corresponding to the target lens.

In the detailed description of the present invention, the following inventions are included. (1) After centering the lens while holding the lens on the rotating shaft having the suction means, an inking head is brought close to the lens, and the outer peripheral surface and the end surface of the lens are blackened while rotating the lens. The control device of the lens sanitizing machine has image processing means for image-processing and measuring the distance between the outer peripheral surface and the end face of the lens and the end face of the sanitizing head, and the image processing means automatically operates the sanitizing head. A control device for an automatic lens sanitizing machine, characterized by having a calculating means for determining the position of the lens.

(2) The calculating means converts the amount of movement of the sanitizing head into the number of pulses based on the result measured by the image processing means, and converts the number of pulses into X
-The control device for an automatic lens sanitizing machine according to the above configuration (1), wherein the control device sends the signal to a motor controller that controls a servomotor that drives the Y table.

[0039]

As described above, according to the present invention,
The calculating means automatically calculates the operating position data of the sanitizing head simply by measuring the end points of the outer peripheral surface and the end surface of the lens and the reference position of the sanitizing head by the image processing means. Thus, the operating position of the sanitizing head can be taught by transmitting the calculation result to a motor controller that controls a driving unit that moves the sanitizing head. In other words, the automatic lens sanitizing device can be quickly and accurately taught with a small amount of work, and there is no need to change the setup even if the target lens is changed.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a partial cross section of the embodiment of the present invention.

FIG. 3 shows a blackened head, and FIG. 3 (a) is a left side view,
FIG. 3B is a plan view.

FIG. 4 is a diagram showing a screen by the image processing apparatus.

FIG. 5 is a block diagram showing a control device according to the embodiment of the present invention.

FIG. 6 is a diagram illustrating a screen by the image processing apparatus.

FIG. 7 is a plan view showing a conventional sanitizing machine.

[Explanation of symbols]

 Reference Signs List 1 base 10 lens suction rotation centering unit 11 suction cylinder 12a, 12b centering head 13 motor 14 lens 18 connecting tube 19 vacuum generator 20a, 20b cylinder 23 micro head 24 applying plate 30 black coating unit 31 XY table 32 Y axis 33 X axis 32a, 33a, 47a, 47b Servo motor 34a, 34b Inking head 35 Dispenser 36 Cartridge 40 Image processing unit 41 Camera unit 42 Control unit 44 Calculation unit 45 Motor controller 46 Servo driver

Claims (3)

[Claims] 1. An automatic system for centering a lens while holding the lens on a rotating shaft having a suction means, bringing a black coating head close to the lens, and coating the outer peripheral surface and the end surface of the lens while rotating the lens. In a control device of a lens sanitizing machine, an image processing means for projecting an outer peripheral surface and an end surface of a lens and an end surface of a sanitizing head as an image, and electrically processing end points of each surface of the image to calculate coordinates of each end point. And a calculating means for determining the operating position of the sanitizing head based on the calculation result of the image processing means. 2. The image processing means includes: a camera unit for projecting an outer peripheral surface and an end surface of a lens and an end surface of a sanitizing head as an image; and electrically processing an end point of each surface of the image to calculate coordinates of each end point. The control device for an automatic lens sanitizing machine according to claim 1, further comprising a control unit for calculating. 3. The automatic lens according to claim 1, wherein said calculating means calculates a moving amount of the sanitizing head and outputs a signal for controlling a driving means of the sanitizing head in accordance with the moving amount. Control device for inking machine.