JPS6130632B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to lenses, and more particularly to an automatic lens coating device for coating ink or paint on the edge and end surfaces of lenses.

Conventionally, when applying ink or paint to the edge and end surfaces of a lens, it has been done manually using a brush or a brush. Therefore, not only is the work efficiency low, but the edge surface of the lens cannot be coated uniformly and well, resulting in many defective products. A high level of skill was required to eliminate these defective products. There were many problems such as.

The present invention was developed in order to solve the above-mentioned problems, and is equipped with a V-block that can move up and down freely, and furthermore, this upward movement is controlled by a micro head to adjust the position of the lens. A lens supply alignment mechanism A that automatically adjusts the position of the vacuum reverse chuck and a vacuum chuck with two chuck catchers attached is provided, and the vacuum chuck is moved forward and backward guided by a slide shaft. The vacuum suction chuck, which is attached to a freely movable base and holds the lens, is linked by a belt via a pulley with the lens conveyance mechanism B, which moves the vacuum suction chuck that holds the lens forward and backward between the lens supply alignment mechanism A and the lens coating mechanism C. To provide an automatic coating device comprising a lens coating mechanism C that rolls respective coating rollers at the tips of two shafts held together in an ink tank to automatically coat the edge surface and end surface of the lens alternately. We aim to provide an automatic lens coating device that fully automates the conventional manual work, improves the coating density and uniformity of the coating position, and allows us to always obtain uniform, high-quality products. This is the purpose.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an outline of the mechanism principle of the automatic lens coating apparatus of the present invention. First, lens L
is placed on the V surface of the V block and moved in the direction of the arrow to position the lens L (lens supply alignment mechanism). Next, move the lens L left and right as shown by the arrow, and paint rollers R1 and R2
(lens transport mechanism). Furthermore, the paints P1 and P2 are transferred to the paint roller R.
1. Apply to the lens L via R2 (lens paint mechanism). These three mechanisms make this device a success.

Next, to explain the principle of the method of painting the lens L, the lens L is stopped on the V block V at the position A, and the edge surface M of the lens L is first coated with the paint roller R1 at the position B. Next, the lens L is moved one step down at position C, and the end surface N of the lens L is coated with a coating roller R2. Then, paints P1 and P are applied to the edge surface M and the end surface N of the lens L.
2 is applied, the lens L returns to the original position D of the V block V, and this series of operations is automated.

Figures 2 to 4 are overall schematic diagrams showing the mechanism of the device incorporating the mechanism principle shown in Figure 1, with Figure 2 being a plan view, Figure 3 being a front view, and Figure 4 being a front view. is a right side view. First, the lens conveyance mechanism B is a mechanism that conveys the lens L to each coating roller. Reference numeral 1 denotes a vacuum suction chuck that suctions the lens L with air, and the movable base 4a is fixed to a movable base 4a guided by a slide shaft 3 via two chuck chucks 2a and 2b. It is movable forward and backward by a moving cylinder 5 for feeding, and the forward end stops at the lens supply and removal side of the V block of the lens supply alignment mechanism A, which will be described later, and the backward end is the lens painting roller of the lens painting mechanism C, which will be described later. It is designed to stop on the side. In addition, 6 is a chuck stopper, 7 is a bearing, 8a and 8b are springs, 9 and 10 are front and rear stoppers, 12 is a cylinder for chuck front diversion, 13 is a stud,
14 is an arm, and 38 is a table. Next is the lens supply alignment mechanism A, which consists of a part that removes the lens supply and a part that determines the position of the lens and the position of the vacuum suction chuck. The supply and removal of the lens L is performed using a conventionally known vacuum suction jig (not shown) attached to this apparatus. That is, the lens L is attracted to the suction pad of the vacuum suction jig, and the V block 23 is
It supplies and removes it from above. Next is the positioning of the lens L and vacuum suction chuck 1.
The V block 23 is raised and lowered by an air cylinder 40 for raising and lowering the block, and the raising point can be adjusted by the micro head 20, so alignment is performed by this adjustment. In addition, 21 is a V block base, 22 is a V block foot, 15 is a base, 16 is a stand, 17 is a cylinder nut, 18 is a slide shaft, 19 is a bearing, and 4b is a forming base. Furthermore, there is a lens painting mechanism, which applies paint to the edge and end surfaces of the painted lens while automatically adjusting the position of the lens. Painting rollers 50a, 50b are attached to the tips of the two shafts 42a, 42b, and both shafts are interlocked by a belt 49 via pulleys 48a, 48b. Due to this interlocking, the paint P
1. Ink tanks 54a, 54 containing P2
Paint rollers 50a and 50b are rolled inside b to coat the edge surface M and end surface N of the lens L with paint P1,
P2 is applied. 43 is a stand, 44 is a bearing, 45 is a collar, 46 is a lock nut, 47 is a spring stopper, 51a and 51b are drip removal plates, and 52a and 52b are drip removal arms thereof.

5 to 8 show the operating mechanisms of the mechanisms A, B, and C. First, the operation of the lens transport mechanism B will be explained with reference to FIG. Fifth
The figure is a right side view of the lens transport mechanism B. The vacuum suction chuck 1 that has suctioned the lens L is constantly attached to the coating roller 50 by two springs 8a and 8b.
a and 50b in a stretched state. In this case, the chuck front diversion cylinder 12 is
Since the rod is extended, the lower spring 8a is in a relaxed state. Then, the vacuum suction chuck 1 is opened by the tension force of the upper spring 8b.
is in contact with check stopper 6. Next, when the rod of the chuck forward diversion cylinder 12 contracts, the vacuum suction chuck 1 rotates forward around the shaft 33 because the lower spring 8a has a stronger spring force than the upper spring 8b. Fall down. In this way, even when the lens L is in contact with the chuck stopper 6 of the vacuum suction chuck 1, the edge surface M of the lens L remains on the coating roller 5.
The end face N of the lens L is coated even when the lens L is 0a, and then the end face N of the lens L is coated even when the vacuum suction chuck 1 is rotated forward.
will be painted with the paint roller 50b. The spring force of each spring 8a, 8b can be adjusted depending on the diameter of the lens L.

Further, the operation of the vacuum suction chuck 1 will be explained with reference to FIG. FIG. 6 is a cross-sectional and front view of the vacuum suction chuck 1. Vacuum suction chuck 1
The lens L is attracted to the O-ring 27 of the tip 26 (air is constantly sucked in the direction of the arrow), and the lens L is attached to the spindle 25 via the bearing 29.
Since the shaft 33 to which the chuck kits 2a and 2b are fixed is fixed to the chuck base 32 via a bearing 34, the vacuum suction chuck 1 can be rotated freely by the springs 8a and 8b. Shaft 3 due to burr force
It is designed to be freely movable in the front and rear directions around point 3. That is, the vacuum suction chuck 1 is constantly pulled backward by the spring 8b (not shown), the lens L adsorbed to the O-ring 27 comes into contact with the coating roller 50a, and the first edge surface M is painted. Preferably, after a certain period of time (several rotations) has elapsed (several seconds), the chuck forward diversion cylinder 12 contracts, and due to the spring force of the spring 8b, the vacuum suction chuck 1 falls forward around the shaft 33, and is applied to the coating roller 50b. After contact and the second coating of the end face N begins and a certain period of time (several rotations) has elapsed (several seconds), the vacuum suction chuck 1 returns to its original position. In this case, the lens L is always applied to the coating rollers 50a and 50 with the same pressure.
Since it is pressed against the b side, uniform painting can be done at the same position all the time. In addition, 28 is a stop ring, 30 is an air suction hole, 35 is a knob, 36 is a collar, and 37 is a lock nut.

Next, as shown in FIG.
The operation of this will be explained. FIG. 5 is a right side view of the lens supply alignment mechanism. This mechanism aligns the center position of the lens L with the rotation center of the vacuum suction chuck 1.

The V block 23 is located perpendicular to the rotation center line of the vacuum suction chuck 1, and is connected to the air cylinder 40 by the cylinder nut 17 via the V block foot 22, V block base 21, moving base 4b, and bearing 19. It is connected to and is designed to rise and fall. Furthermore, the micro head 20 allows adjustment of the rising point. Next, the center position of the lens L is aligned with the rotation center position of the vacuum suction chuck 1. The V block 23 is raised by an air cylinder 40, and the lens L is moved using a conventionally known vacuum suction jig (not shown). When placed between the valleys of the V block 23, the lens L will settle at the deepest position of the valley due to its own weight. Adjustments are made by moving the V block 23 up and down using the micro head 20 so that the center position of the lens L at this time is at the same height as the rotation center position of the vacuum suction chuck 1.

Furthermore, the lens coating mechanism C will be explained with reference to FIG. FIG. 8 is a left side view and a front view of the lens coating mechanism C. First, the pulley 4 is driven by the motor 55 that controls the speed.
8, further rotates the pulleys 48a, 48b via the belt 49, and the shafts 42a, 4
Rotate 2b. Both shafts 42a, 42
The paints P1 and P2 injected into the ink tanks 54a and 54b by the rotation of the paint roller 50
Paint the edge surface M and end surface N of the lens L via a, 50b, R1, and R2. That is, the first time, the edge surface M of the lens L1 is coated with the coating roller 50a, R1.
In the second coating, the end surface N of the lens L2 is coated using the coating rollers 50b and R2. In addition, the paints P1 and P applied to the lens L surface
The film thickness and shape of 2 are determined by the concentration of the paint and the droplet removal plate 5.
1a, 51b and painting rollers 50a, 50b, R
1. Adjustment of gap on R2 surface, painting roller 50
a, 50b, R1, R2 rotation speed Required time for painting, painting roller 50a, 50b, R
1, determined by the shape of R2, etc. FIG. 9 is a circuit diagram of the electric operation of the device of the present invention. If we explain the automatic operation of each mechanism in the previous figure, we will first explain the lens supply alignment mechanism A and the lens transport mechanism B.
Set the power switch of the lens coating device consisting of lens coating mechanism C and lens coating mechanism C to CN. Next, the switch for manually operating the lens supply alignment mechanism A and the lens transport mechanism B is pressed and manually held to align the lens with the V block and the coating roller. Once the lens has been positioned in this way, the switch can be pressed again to enable automatic operation of all operations. Once everything in this device is set to work in this way, fill the ink tank with paint, set the two drip removal plates in their respective positions, and turn on the motor switch of lens coating mechanism C. Turn on and rotate the paint roller. Then, step on a foot switch (not shown) operated in the following order once to raise the V block and supply the lens onto the V block (using a vacuum suction jig). When the foot switch is pressed again to lower the V block, the first timer is activated and the lens is conveyed in the direction of the coating roller. When the lens contacts the paint roller for the first time, the edge surface of the lens is painted. Next, the second timer is activated, and the vacuum suction chuck holding the lens falls forward and comes into contact with the second coating roller, and the end face of the lens is coated. After a certain period of time (several seconds), the timer goes off, the vacuum suction chuck is raised, and the lens returns to its original position and remains stationary. Remove the lens using a vacuum suction jig. Continuous work is performed by repeating this type of operation.

Since the present invention is configured as described above, it is possible to automate the application of India ink or paint to the edge and end surfaces of the lens, which was conventionally done manually, and moreover, it is possible to automate the application of ink or paint to the edge and end surfaces of the lens, which was previously done manually. It is a novel and unique automatic lens that is superior in all aspects, including performance, manufacturing, operation, economical, and practical aspects, as it has a simple mechanism and is easy to handle and operate. Paint equipment can be provided.

[Brief explanation of the drawing]

Fig. 1 is a schematic explanatory diagram showing the mechanism principle of the automatic lens coating device of the present invention, Figs. 2 to 4 are a plan view, front view, right side view, and Fig. 8 to 8 are explanatory schematic diagrams showing the main parts of the device of the present invention and their operations, and FIG. 9 is a circuit diagram of the device. 1...Vacuum suction chuck, 2a, 2b...Chuck catcher, 3, 18...Slide shaft, 4a, 4b...Movement base, 5...Transfer cylinder, 6...Chuck stopper, 8a, 8b
... Spring, 9, 10 ... Stopper, 1
3, 16...stand, 20...micro head, 23...V block, 25...spindle,
27...O ring, 30...Suction hole, 31...Air joint, 32...Chuck base, 33...Shaft, 38...Spring, 39...Table, 41...Spring, 42...Shaft, 4
7... Spring stopper, 48... Pulley, 49... Belt, 50... Paint roller, 5
1... Drip removal plate, 54... Ink tank, 55...
motor.

Claims (1)

[Claims] 1. A lens supply positioning mechanism A that allows vertical vertical movement and is equipped with a V block, and that automatically adjusts the position of the lens and the vacuum suction chuck using a micro head during this upward movement; 2.
A vacuum suction chuck to which a chuck catcher is attached is provided, and the vacuum suction chuck is attached to a movable base guided by a slide shaft that can move forward and backward, and the vacuum suction chuck with the lens suctioned is aligned with the lens supply position. Lens transport mechanism B that moves forward and backward between mechanism A and lens coating mechanism C
2, linked by a belt via a pulley.
It consists of a lens painting mechanism C that attaches painting rollers to the tips of the book shafts, rolls the two painting rollers in an ink tank, and automatically paints the edge and end surfaces of the lens alternately. An automatic lens coating device featuring: