JP2560476Y2 - Flat-pan article cashier - Google Patents

Description

[Detailed description of the invention]

[0001]

2. Description of the Related Art A flat article accounting apparatus according to the present invention is incorporated in, for example, a polarizing plate sticking apparatus in a liquid crystal display manufacturing process, and automatically takes out glass sheets sandwiching liquid crystal one by one from a magazine. Or, it is used to store a glass plate which has been taken out of the above-mentioned magazine and further attached with a polarizing plate in another magazine.

[0002]

2. Description of the Related Art When manufacturing a liquid crystal display, first, a liquid crystal is sandwiched between two glass plates to form a plate-shaped base plate in which two glass plates are superimposed, and a polarizing plate is provided on one surface of the base plate. A reflective plate is attached to each surface to form a display plate. The polarizing plate and the reflection plate were obtained by applying a pressure-sensitive adhesive to one surface of a synthetic resin film having elasticity. When the pressure-sensitive adhesive was attached to the base plate, it was attached to the application surface of the pressure-sensitive adhesive. After peeling off the release paper, press it against the surface of the base plate.

[0003] As described above, the operation of attaching a polarizing plate or a reflector to the surface of a base plate is automatically performed by a sticking device. There is no suitable automatic device for storing the display plate on which the reflector and the reflection plate have been attached in a magazine. At present, an operator manually carries out the unloading and unloading of the raw plate and the display plate.

[0004]

[Problems to be Solved by the Invention] The unloading work of the flat article according to the present invention can be performed automatically by pulling out the blanks one by one from the magazine or by inserting the display boards one by one into the magazine. By doing so, the efficiency of the manufacturing operation of the liquid crystal display and the labor saving can be achieved.

[0005]

According to the present invention, there is provided an apparatus for unloading a flat article, comprising:
A magazine which is stored in a state of being overlapped in the horizontal direction and has an open top, a movable table on which the magazine can be placed, and the movable table is horizontally moved in the direction of overlapping the plurality of flat articles. A moving device, a controller for controlling the moving device, a supporting arm provided on a side of the moving table, an inner surface of the supporting arm, a pivot provided in a width direction of the magazine, By the lever pivotally supported by the support arm and the tip of this lever,
A roller pivotally supported by a horizontal axis parallel to the pivot axis and having an outer peripheral surface elastically pressed toward an end plate-shaped article among a plurality of plate-shaped articles on the magazine upper surface, and movement of the lever And a suction head for lifting and lowering the flat articles one by one at the roller side end of the magazine upper surface in an upright state.

[0006] The switch is provided with the flat article 1.
ON, O when the above roller is displaced by the thickness of the sheet
The controller has a function of switching the FF state and sending the signal to the controller, and the controller moves the moving table in a direction to eliminate the displacement of the roller accompanying the loading and unloading of the flat article by the suction head. And a function of moving the moving table.

[0007]

According to the flat article accounting apparatus of the present invention configured as described above, of the plurality of flat articles stored in the magazine, the side face of the flat article existing at the end is always the same. Since it is located at the position, it is possible to reliably take out the flat article from the magazine by the suction head and insert the flat article into the magazine.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 3 show, as a first embodiment of the present invention, a take-out device for taking out raw plates for a liquid crystal display one by one from a magazine. The magazine 1 has a pair of left and right partition bars 3, 3 fixed on the upper surface of the substrate 2 at intervals in the width direction (the left and right direction in FIGS. 1 and 2 and the front and back directions in FIG. 3). 3, a base plate 4, which is a flat article,
A plurality of sheets 4 can be stored in an upright state and in a state of being overlapped in the horizontal direction. Also, L-shaped support members 5, 5 are screwed and fixed to both ends of the partition bars 3, 3 in the longitudinal direction (vertical direction in FIG. 1, front and back in FIG. 2, right and left in FIG. 3). Thus, the base plates 4, 4 are prevented from falling down. On the upper surface of the substrate 2, no members other than the partition bars 3, 3 and the support members 5, 5 are provided, so that the magazine 1 is open at the top.

The magazine 1 is mounted on the upper surface of the moving table 6 and moves together with the moving table 6. The moving table 6 is moved by a moving device (not shown) such as a ball screw mechanism in a direction in which the plurality of base plates 4 and 4 are overlapped (up and down directions in FIG. 1, front and back directions in FIG. 2, right and left directions in FIG. 3). Direction). The start and stop of the moving device are controlled by a controller (not shown).

On the other hand, first and second support arms 7 and 8 are provided on a fixed portion such as a frame of the polarizing plate sticking device so as to face each other with the moving table 6 interposed therebetween. . On the inner surface of each support arm 7, 8, a first and second pivot 9,
10 are provided in the width direction of the magazine 1, and first and second levers 11 and 12 are pivotally supported by the first and second support arms 7 and 8 by respective pivots 9 and 10.

First and second rollers 13 and 14 are attached to the distal ends of the levers 11 and 12, respectively, and the pivots 9 and
Are pivotally supported by horizontal axes 15 and 15 parallel to. The first and second support arms 7, 8 and the first and second levers 11, 1
2 are provided with tension springs 16, 16, respectively, and each roller 1, which is pivotally supported at the tip of each lever 11, 12, is provided.
The outer peripheral surfaces of the base plates 3 and 14 are elastically pressed toward the base plate 4 at the end of the base plates 4 and 4 on the upper surface of the magazine 1.

The first lever 11 is formed in an L shape, and one end of the tension spring 16 is connected to the horizontal shaft 15.
Is locked to the first lever 11 at a portion opposite to the first roller 13. Also, the first lever 1
At a part of the end opposite to the first roller 13,
The base end of the light shielding plate 17 is fixedly connected. A pair of light-shielding portions 18 and 19 are provided at upper and lower ends of the light-shielding plate 17 which is formed by bending a metal plate, and the first lever 11 swings about the first pivot 9. , Each light shielding part 18, 1
9 goes up and down.

On the other hand, a pair of upper and lower photoelectric switches 20 is provided on the side surface of the mounting plate 26 supported and fixed to the first support arm 7.
The photoelectric switch 20 and 21 are turned on and off as the light-shielding portions 18 and 19 are raised and lowered. That is, the upper photoelectric switch 20 is configured such that the first roller 13 has a thickness corresponding to the thickness of the raw plate 4 by one sheet,
ON by displacing between the solid line state and the chain line state
It has a function of switching the OFF state and sending the signal to the controller. The controller moves the moving table 6 downward in FIG. 1 to eliminate displacement of the first roller 13 caused by pulling out the base plate 4 by the suction head 22 described below. To the left of FIG. 3,
It has a function of moving the moving table 6.

Above the moving table 6, there is provided a suction head 22 capable of sucking the raw plate 4 so as to be able to move up and down. The suction head 22 holds the blank 4 on one end of the upper surface of the magazine 1 on the side of the first and second rollers 13 and 14.
It is for raising and lowering the sheets one by one in an upright state, and has suction pads 23, 23 that are opened to the side and open to the side, with the inside communicating with the negative pressure source. However, the suction head 22 is rotatable by 90 degrees around a horizontal axis (an axis extending in the left-right direction in FIGS. 1 and 2 and an axis extending in the front-back direction in FIG. 3), and is used when the base plate 4 is pulled out from the magazine 1. Only the base plate 4 is supported in an upright state, and when the base plate 4 is transferred to a polarizing plate sticking device, the base plate 4 is rotated in the horizontal direction.

Further, a stopper 24 is provided above the magazine 1 placed on the moving table 6 and near the first and second rollers 13 and 14, so as to be lifted while being sucked by the suction head 22. Only one base plate 4 can pass through. That is, even if the base plate 4 next to the base plate 4 sucked by the suction head 22 rises while being attached to the base plate 4 sucked by the suction head 22, the adjacent base plate 4 is blocked by the stopper 24. Never rise. Therefore, it is not necessary to take out two or more base plates 4.

According to the flat-shaped article accounting apparatus of the present invention configured as described above, of the plurality of base plates 4 stored in the magazine 1, the side surface of the base plate 4 existing at the end portion Is always at the same position, so that the raw plate 4 can be reliably taken out of the magazine 1 by the suction head 22.

More specifically, when one raw plate 4 is taken out from the upper surface of the magazine 1, the suction pad 2 of the suction head 22 is
3 and 23 are brought into contact with the side surfaces of the base plate 4 at the ends, and the suction pads 23 and 23 are sucked to the side surfaces of the base plate 4.
At this time, if necessary, the magazine 1 and the suction head 22 are moved closer to each other with the suction pads 23 and 23 and the raw plate 4 facing each other. At this time, the upper light shielding portion 18
3 exists above the upper photoelectric switch 20 as shown by a solid line in FIG. 3, and allows light to reach the light receiving unit from the light emitting unit of the photoelectric switch 20.

From this state, the suction head 22 is raised as shown by a chain line in FIG.
When the first roller 13 is pulled up, the first roller 13 is displaced from the solid line state to the chain line state in FIG. 3, the light shielding plate 17 is lowered, and the upper light shielding portion 18 enters the inside of the upper photoelectric switch 20. This prevents light from reaching the light receiving portion from the light emitting portion of the photoelectric switch 20.

As a result, no light reaches the light receiving portion of the photoelectric switch 20. As a result, a controller which receives a signal from the photoelectric switch 20 activates the moving device of the moving table 6, and the moving table 6 1 below, FIG. 2
3 and to the left in FIG.

As a result, the first roller 13 is pushed by the adjacent base plate 4 to be displaced from the chain line state of FIG. 3 to the solid line state, and the upper light shielding portion 18 is shown by the solid line in FIG. As shown in the figure, the optical switch 20 is retracted above the upper photoelectric switch 20 to allow light from the light emitting section of the photoelectric switch 20 to reach the light receiving section. As a result, the controller that has received the signal from the photoelectric switch 20 uses the moving device to move the moving table 6.
To stop. Hereinafter, by repeating the same work,
The base plates 4 on the top of the magazine 1 are taken out one by one and sent to the polarizing plate sticking device.

The lower light-shielding portion 19 and the photoelectric switch 21
This means that when the raw plates 4 and 4 on the top of the magazine 1 fall to the first and second rollers 13 and 14 and it becomes impossible to take out the raw plate 4 by the suction head 22, this is detected and the controller To stop the moving table 6 and the suction head 22 and issue an alarm. Therefore, as long as the cashier is operating normally, the light shielding unit 1
9 does not enter the photoelectric switch 21.

The second roller 14, together with the first roller 13, presses both sides of the base plate 4 with substantially the same elasticity so as to prevent the base plate 4 from falling down. Therefore, the first roller 13 is moved in the width direction of the base plate 4 (FIGS.
The second roller 14 can be omitted as long as the first roller 13 alone can prevent the base plate 4 from falling down, for example, by pressing it toward the center in the left-right direction (the front-back direction in FIG. 3).

Next, FIG. 4 shows a second embodiment of the present invention.
This shows a storage device in which display plates each having a polarizing plate adhered to a base plate are fed one by one into a magazine. The basic configuration of the present embodiment is the same as that of the above-described first embodiment, except that the stopper 24 (FIGS. 1 to 3) is not provided above the moving table 6 and that the flat article is placed on the magazine 1. Display plate 25,
As the sheets 25 are inserted one by one, the moving table 6 is moved from the first and second rollers 13 to the display plates 25 and 2.
5 is different from that of the first embodiment in that it moves to the right in FIG.

That is, the display boards 25, 2
5 is fed, the first and second rollers 13 are pushed out while the suction head 22 that has sucked the display plate 25 is pressed.
(See FIGS. 1 to 3). With this lowering, the upper light-shielding part 18 rises from the chain line state in FIG. 4 to the solid line state, and the light reaches the light receiving part of the upper photoelectric switch 20 to which the light has not reached before.

As described above, the light reaches the light receiving portion of the photoelectric switch 20. As a result, the controller receiving the signal from the photoelectric switch 20 activates the moving device of the moving table 6, and the moving table 6 Is moved rightward in FIG.

As a result, the first roller 13 is displaced from the solid line state in FIG.
8 is an upper photoelectric switch 20 as shown by a chain line in FIG.
To prevent light from reaching the light receiving portion from the light emitting portion of the photoelectric switch 20. As a result, the photoelectric switch 2
The controller which receives the signal from 0 stops the moving table 6 by the moving device. Hereinafter, the same operation is repeated, and the display boards 25 are fed one by one to the upper surface of the magazine 1.

In each of the above embodiments, the photoelectric switch 20 is used as a switch for detecting the displacement of the first roller 13. However, the first switch 13 is provided by a micro switch having an appropriate hysteresis. Or the displacement of the first roller 13 can be detected by a variable resistor, and the moving table 6 can be moved in accordance with the displacement.

[0028]

[Effects of the Invention] The flat-panel article cashier according to the present invention is constructed and operated as described above, so that the work of automatically loading and unloading a raw plate or a display plate made of a glass plate into or from a magazine is performed. As a result, it is possible to improve the efficiency and labor of manufacturing the liquid crystal display device and the like.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part showing a first embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1;

FIG. 3 is a view as viewed from the direction of the arrow B;

FIG. 4 is a view similar to FIG. 3, showing a second embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magazine 2 Substrate 3 Partition bar 4 Base plate 5 Support member 6 Moving table 7 First support arm 8 Second support arm 9 First pivot 10 Second pivot 11 First lever 12 Second lever 13 First One roller 14 Second roller 15 Horizontal axis 16 Tension spring 17 Light shield plate 18, 19 Light shield part 20, 21 Photoelectric switch 22 Suction head 23 Suction pad 24 Stopper 25 Display plate 26 Mounting plate

Claims (4)

(57) [Scope of request for utility model registration] 1. A magazine having an open top for storing a plurality of flat articles in an upright state and stacked in a horizontal direction, a movable table on which the magazine can be placed, and a movable table A moving device for horizontally moving the plurality of flat articles in the direction of superposition, a controller for controlling the moving device, a supporting arm provided on a side of the moving table, and the supporting arm, A pivot provided in the width direction of the magazine, a lever pivotally supported by the support arm by the pivot, and a distal end of the lever pivotally supported by a horizontal axis parallel to the pivot, and having an outer peripheral surface formed by the magazine Of the plurality of flat articles on the upper surface, a roller that is elastically pressed toward the flat article at the end, a switch that is switched according to the movement of the lever, and the roller side of the upper surface of the magazine At the end, a suction head for raising and lowering the flat articles one by one in an upright state is provided, and the switch is turned on and off by the displacement of the roller by the thickness of the flat article. Has a function of sending the signal to the controller, and the controller moves the moving table in the direction of eliminating the displacement of the roller caused by taking in and out of the flat article by the suction head. An apparatus for dispensing a flat article having a function of moving a moving table. 2. A variable resistor is provided in place of the switch, and the variable resistor has a function of changing a resistance value by displacing a roller and transmitting a signal representing the resistance value to a controller. Item 2. The apparatus for dispensing and receiving a flat article according to item 1. 3. A stopper is provided above a magazine placed on a moving table and near a roller so as to allow only one flat article rising while being sucked by a suction head to pass therethrough. With the removal of the flat article from the magazine by the head, the moving table,
3. The flat article dispensing apparatus according to claim 1, wherein the flat article on the magazine upper surface is moved in a direction approaching the roller. 4. The controller according to claim 1, wherein the controller moves the moving table in a direction in which the flat article on the upper surface of the magazine moves away from the roller as the flat article is inserted into the magazine by the suction head. Item 3. An apparatus for depositing and withdrawing flat articles according to Item 2.