JP2009120311A - Supply device of glass substrate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently collect a spacer and supply a glass substrate alternately stacked in a flat pile on a pallet, without using a robot. <P>SOLUTION: The spacer 1 and the glass substrate 2 are alternately stacked, and one edge part of the spacer runs off the edge of the glass substrate. The pallet 3 on which the spacers 1 and the glass substrates are stacked is supplied on an lifting table 4 so that a run-off side of the spacer faces the front. A first traveling body 5 traveling forward and backward between an upper/front end side and a front part of the pallet, is provided with a first suction pad 12 sucking an upper/front side of a top stage glass substrate. An air nozzle 13 is provided to float the glass substrate during transfer on the lower face side and the front of the top stage glass substrate of which front side is sucked up on the pallet. A carrying device H in front of the air nozzle is provided to receive the glass substrate and carrying it forward. A pressing bar member 33 with reversible rotation function having a second suction pad 34, and pressing down the run-off edge part, are disposed to the front side of the pallet, and the press bar member 33 is moved forward or backward to an empty pallet by a moving means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention supplies a glass substrate stacked on a pallet to a front processing machine for inserting a cutting line, for example, and collects spacers such as slip sheets and buffer sheets remaining on the next glass substrate on an empty pallet It is related with the supply apparatus.

  After supplying the glass substrate with the glass substrate and spacers such as interleaving paper and buffer sheets alternately stacked on the pallet to the front processing machine, to supply the next glass substrate, it remains on the glass substrate The spacer must be removed.

In order to alternately supply the glass substrate and remove the spacer as described above, the glass substrate is picked up and supplied by the vacuum pad of the robot hand, and the spacer is grasped by the open / close type chuck of the robot arm, or by the vacuum pad. It is adsorbed and removed (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 6-255772

By the way, according to the method of Patent Document 1, since the supply of the glass substrate and the removal (collection) of the spacer are alternately performed using one robot hand, the glass substrate is supplied unless the removal of the spacer is completed. I can't. For this reason, the problem that the processing efficiency of a glass substrate falls significantly occurred.
In particular, since an expensive robot is installed, there is a problem that the equipment cost is greatly increased.

  Therefore, in the present invention, the glass substrate supply mechanism and the spacer recovery mechanism are separately arranged, and the spacer is recovered during the return after the supply of the glass substrate so as to significantly increase the operating rate. It is to provide a substrate supply apparatus.

  In order to solve the above-described problems, the present invention provides a pallet in which spacers such as slip sheets and glass substrates are alternately overlapped, and one edge portion of the spacer protrudes from the edge of the glass substrate. The spacer is supplied onto the lifting table so that the protruding side of the spacer faces forward, and the first traveling body is provided so that the upper front end side of the pallet moves forward and backward, and the first traveling body is lifted and lowered by the lifting means. And a first suction pad for sucking the upper surface front side of the uppermost glass substrate, and an air nozzle for floating the glass substrate being transferred to the lower surface side and the front side of the uppermost glass substrate raised to the front side of the pallet, An unloading device is provided for receiving the glass substrate drawn out by the first suction pad forward from the air nozzle and unloading it forward, and is raised to the front side of the pallet. A horizontal pressing bar material with a reversible rotation means provided so as to press down the protruding edge of the spacer by lowering by means, and the pressing edge of the uppermost spacer protruding to the pressing bar material The second suction pad for sucking the air is provided, and the holding bar member is provided with a moving means for moving forward and backward from the upper side of the uppermost glass substrate to the rear spacer collection empty pallet.

  As described above, according to the glass substrate supply apparatus of the present invention, the first traveling body that has been retracted and stopped by supplying the pallet in which the glass substrates and the spacers are alternately stacked on the lifting table. The first suction pad is lowered by the lifting / lowering means to suck the upper front edge of the uppermost glass substrate, and after suction, the first suction pad is lifted by the lifting / lowering means to pull up the glass substrate.

At this time, since the air from the air nozzle is jetted to the lower surface of the glass substrate, the pulled glass substrate is lifted. Under this condition, the glass substrate is smoothly pulled out without resistance as the first traveling body advances. Since the glass substrate is floated by the upward jet of air from the air nozzle, the glass substrate is carried out forward without any resistance.
On the other hand, the drawn glass substrate is received by the carry-out device and sent to the front processing machine.

  In addition, the spacer on the glass substrate is pressed out by the second suction pad of the pressing bar material lowered by the lifting means, so that the spacer is not pulled out when the floating glass substrate is pulled out. Until the subsequent return of the first suction pad, the pressing bar member having the second suction pad sucking the protruding end is rotated by the rotating means, the uppermost protruding end is turned up, and raised by the lifting means. The pressed bar material is moved backward by the moving means and supplied to the empty pallet while peeling the spacer on the glass substrate. After the supply, the suction of the second suction pad is released and the spacer is recovered.

  For this reason, the problem that the supply efficiency of the glass substrate for performing the supply of the glass substrate using the robot and the recovery of the spacer as in the past and the facility cost greatly increase is eliminated. be able to.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  In the embodiment of the present invention, as shown in FIGS. 1 to 10, spacers 1 such as slip sheets and buffer sheets and glass substrates 2 are alternately stacked and stacked on a pallet 3 (as shown in FIG. 10). It is. At that time, one edge portion of the spacer 1 protrudes from the edge of the glass substrate 2.

The glass substrate 2 is a thin rectangular plate, for example, for liquid crystal display.
The pallet 3 is supplied onto the elevating table 4 with the protruding edge of the spacer facing forward. The lifting means 23 of the lifting table 4 is stacked using a lift, a cylinder, or the like, and the table 4 is lifted each time the glass substrate 2 is reduced.

Further, a first traveling body 5 that travels forward and backward between the front side of the pallet 3 and the front side is provided.
In the illustrated case, the first traveling body 5 is provided with guide rails 6 facing in the front-rear direction on both sides of the carry-out path of the glass substrate 2, and the slider 7 of the first traveling body 5 of the portal frame is provided on the guide rail 6. A female screw 9 supported by the first traveling body 5 is screwed into a male screw 8 which is slidably engaged and both ends of the guide rail 6 are rotatably supported, and the first motor 10 is reversibly driven. Although the 1st traveling body 5 was made to advance / retreat, the 1st traveling body 5 may be made to advance / retreat by another system.

Further, the first traveling body 5 is provided with a first suction pad 12 that moves up and down by a lifting means 11 such as a cylinder.
When the first suction pad 12 lowered by the elevating means 11 comes into contact with the upper front side of the uppermost glass substrate 2, the first suction pad 12 is suctioned (starting suction with a connected hose). The glass substrate 2 is adsorbed.

  Furthermore, air is jetted from the air nozzle 13 to float on the lower side of the front side of the glass substrate 2 that has been lifted and lifted by the raising and lowering means 11, and the glass substrate 2 is floated. The glass substrate 2 drawn out by air is also ejected upward from the air nozzle 13 to float.

  Further, an unloading device H for receiving the glass substrate 2 drawn out by the first suction pad 12 and unloading it forward is provided in front of the air nozzle 13.

  As the carry-out device H, in the case shown in the drawing, a parallel load receiving table 16 having an injection hole 15 for discharging floating air is arranged on the lower surface of the glass substrate 2 in the middle of transfer, and between the load receiving tables 16. The conveyor 17 that receives the glass substrate 2 on the load receiving table 16 as it rises is provided so as to be raised and lowered by the lifting means 18 (so that it appears and disappears with respect to the upper surface of the load receiving table 16). The glass substrate 2 may be received and carried out on a conveyor that runs at the same speed as the first suction pad 12 and may be sent to a processing machine.

  The load receiving table 16 is formed of a hollow box, and the glass substrate 2 is floated by ejecting air pumped into the box from countless injection holes 15 provided on the top wall of the box.

  In the illustrated case, the elevating means 18 elevates and lowers the mounting seat 20 of the conveyor frame 19 by the expansion and contraction action of the cylinder 21.

  Further, on the front side of the pallet 3, a horizontal presser bar material 33 having a reversible rotation function 32 for lowering the protruding edge 1 ′ of the spacer 1 by the elevating means 31 and pushing it in from above is provided. Is provided with a second suction pad 34 for sucking the upper side surface of the edge 1 'to be pressed.

  Further, when the second suction pad 34 is moved above the front end of the pallet 3 in accordance with the operation of the lifting / lowering means 31 and the reversible rotation function 32, the presser bar member 33 advances and retreats to the empty pallet 35 that is waiting behind the pallet 3. It is made to move by the moving means 36 to do.

  In the illustrated case, the moving means 36 includes a rail 37 laid on one side of the pallet 3 and the empty pallet 35, and a slider 39 of the traveling body 38 is slidably engaged with the rail 37, and A female screw 41 supported by the traveling body 38 is screwed into a male screw 40 that is parallel and rotatably supported at both ends, and the male screw 40 is reversibly driven by the second motor 42 to move the traveling body 38 backward. However, the present invention is not limited thereto, and may be advanced and retracted by other means.

  In the illustrated case, the elevating means 31 and the reversible rotation function 32 are configured such that a column 46 is erected on the traveling body 38 and a bearing supported on the upper end of the column 46 is linked to a horizontal rotation shaft 47. By fixing the upper end of the link 48 and fixing one end of the presser bar member 33 to the lower end of the link 48, the presser bar member 33 that moves together with the reversible rotation of the link 48 moves up and down, and the rotary shaft 47 is moved to the third motor 49. The reversible drive enables the second suction pad 34 to change its posture from the downward direction to the upward direction (as shown in FIGS. 7 to 8) as the link 48 rotates. Other mechanisms that achieve the above-described object may be employed.

In the illustrated case, the second suction pad 34 is sucked by a hose (not shown) connected to one end of the pipe using a pipe for the presser bar member 33, and is connected to the presser bar member 33 in communication with the inside. A suction pad 34 is attached and sucked.
In the figure, 51 is a conveyor for carrying in the empty pallet 35 and carrying out the pallet 35 in which the spacer 1 is full.

With the above configuration, when the pallet 3 is supplied onto the table 4, the presser bar member 33 is moved down by the lifting / lowering means 31, and the second suction that contacts the upper surface of the protruding edge 1 ′ of the uppermost spacer 1. The protruding edge 1 'is pressed in by the pad 34 as shown in FIG.
Then, the protruding edge portion 1 ′ of the uppermost spacer 1 is sucked by the second suction pad 34 as shown in FIG. 3.

  On the other hand, the first suction pad 12 of the first traveling body 5 that has stopped retreating is moved down by the lifting and lowering means 11, and the first suction pad 12 is placed on the upper front end of the uppermost glass substrate 2 as shown by the chain line in FIG. At the same time, the first suction pad 12 is sucked.

Next, the first suction pad 12 is raised by the lifting means 11 and the front end portion of the glass substrate 2 sucked is pulled up as shown by the solid line in FIG.
At this time, the air ejected from the air nozzle 13 is ejected to the lower side of the raised glass substrate 2, and the air is ejected upward from the air nozzle 13.

Under this circumstance, when the first traveling body 5 travels forward, the glass substrate 2 is pulled out by the air jetted from the air nozzle 13, and the pulled glass substrate 2 is placed on the load receiving table 16 of the unloading device H. When turned, the glass substrate 2 is pulled out as shown in FIG. 2 while being floated on the upper side of the load receiving table 16 by the air ejected upward from the ejection holes 15.
Then, when the glass substrate 2 is pulled out above the load receiving table 16, the ejection of air from the injection holes 15 is stopped and the glass substrate 2 is received on the load receiving table 16.

  The glass substrate 2 that has received the load is moved up and down by a lifting and lowering means 18 on the conveyor 17 that is immersed in the upper surface of the load receiving table 16 to receive the glass substrate 2 on the conveyor 17 as shown in FIG. Drive to the front machine.

  When the rear end of the glass substrate 2 has passed over the presser bar member 33 as the glass substrate 2 is pulled out, the presser bar member 33 is first lifted by the lifting means 31 and the presser bar lifted by the reversible rotation mechanism 32. The material 33 is raised and reversed (as shown in FIGS. 7 to 8).

  As shown in FIG. 8, the protruding edge 1 ′ sucked by the second suction pad 34 is in an upward posture, and the protruding holding edge 1 ′ of the suction holding is inverted. Drive backwards.

  Then, while peeling off the spacer 1 remaining on the glass substrate 2, the peeled spacer 1 is loaded onto the waiting empty pallet 35 as shown in FIG. 9, and when the suction by the second suction pad 34 is released, The spacer 1 is collected on the pallet 35.

The first traveling body 5 returns to the retracted position after the glass substrate 2 is carried out, and the presser bar member 33 returns to the original position after the spacer 6 is collected.
By repeating the above, the glass substrate 2 is carried out and the spacer 1 remaining on the glass substrate 2 is collected.

The top view which shows embodiment of this invention. Side view same as above. The partially notched enlarged side view which shows the principal part same as the above. The vertical expanded side view which shows a conveyor. The longitudinal front view same as the above. The enlarged front view which shows the part of a presser bar material. The side view which shows the effect | action of a 2nd suction pad. The same side view. The side view which collects a spacer to an empty pallet. The side view which made the glass substrate flat on the pallet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Spacer 2 Glass substrate 3 Pallet 4 Table 5 1st traveling body 6 Guide rail 7 Slider 8 Male screw 9 Female screw 10 First motor 11 Lifting means 12 First suction pad 13 Air nozzle 15 Injection hole 16 Load receiving table 17 Conveyor 18 Lifting means DESCRIPTION OF SYMBOLS 19 Conveyor frame 20 Installation seat 21 Cylinder 1 'Overhang | projection edge part 31 Lifting means 32 Reversible rotation mechanism 33 Presser bar material 34 2nd suction pad 35 Empty pallet 36 Moving means 37 Rail 38 Traveling body 39 Slider 40 Male screw 41 Female screw 42 Second motor 46 Column material 47 Rotating shaft 48 Link 49 Third motor H Unloading device

Claims (1)

  A pallet in which spacers such as interleaving paper and glass substrates are alternately overlapped and one edge of the spacer protrudes from the edge of the glass substrate and is stacked on the lifting table so that the protruding side of the spacer faces forward A first traveling body is provided so as to advance and retreat between the upper front end side of the pallet and the front, and the first traveling body is moved up and down by lifting means, and the upper front side of the uppermost glass substrate is sucked. A first suction pad is provided, and an air nozzle is provided on the lower surface side of the uppermost glass substrate pulled up on the front side of the pallet and a glass substrate that is being transferred to the front. The air nozzle is drawn forward from the air nozzle by the first suction pad. An unloading device for receiving the glass substrate and unloading the glass substrate is provided. A horizontal pressing bar material with a reversible rotating means provided so as to press down the peripheral edge portion is provided, and a second suction pad for sucking the pressing edge portion protruding from the uppermost spacer is provided on the pressing bar material. An apparatus for supplying a glass substrate, wherein the holding bar member is provided with a moving means for moving forward and backward from the upper side of the uppermost glass substrate to an empty pallet for collecting the rear spacer.

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