JPH05246689A - Method and device for transporting thin plate - Google Patents

Abstract

PURPOSE:To provide the method and device for transporting a thin plate in which the superposed thin plates can be transported in surely separated state one by one. CONSTITUTION:After four corner parts of the piled thin plates are sucked by a vacuum sucker 3 supprted at four corner parts of a conveying device frame, an actuator is operated to lift up the fcur corner parts of the thin plate simultaneously or in succession, and an electromagnetic sucker 2 which is placed, keeping a proper interval in the longitudinal and lateral directions, is operated, and the thin plate is transported in sucked state by the vaccum sucker 3 and the electromagnetic sucker 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin plate carrier and a thin plate conveying method.

[0002]

2. Description of the Related Art When a magnetic plate such as an iron plate or a steel plate is transported from a manufacturer to a user, for example, a large number of magnetic plates are stacked and bundled with a steel band, and are transported by an electromagnetic wave in the user's factory. Using a carrier equipped with an adsorber or a carrier equipped with a vacuum adsorber, the wafers are conveyed one by one from a predetermined position to a place where processing equipment is arranged.

A carrier used for transporting magnetic plates one by one holds a plurality of electromagnetic attraction in order to prevent deformation of the plates and collision with other objects by transporting while maintaining the flatness of the magnetic plates. Devices or vacuum suction devices are arranged at appropriate intervals in the front-rear direction and the left-right direction, and one plate is sucked at a plurality of positions.

After these electromagnetic chucks or vacuum chucks are simultaneously brought close to or in contact with the stacked magnetic plates, they are simultaneously operated to attract the magnetic plates,
By lifting the carrier, only the first magnetic plate from the top is being lifted for transportation.

[0005]

By the way, when the magnetic plate is a thin plate having a plate thickness of 1.6 mm or less, when the magnetic thin plates are lifted one by one using a vacuum suction device or an electromagnetic suction device, a vacuum is used. The inner side of the area where the adsorber is arranged is lifted first, and the peripheral edge of the plate tends to be lifted accordingly.

Therefore, before the peripheral edge of the plate is separated from the lower plate, the part inside the range where the vacuum chuck or the electromagnetic chuck is arranged is lifted, and the lifted part and the lower plate. A vacuum space is generated between the first magnetic thin plate and the second magnetic thin plate.

In particular, if the magnetic thin plates are to be lifted up one by one by using the electromagnetic attractor, the magnetic field of the electromagnetic attractor acts on the second or less magnetic thin plates, so that the second or less magnetic thin plates make up one.
Since it is magnetically attracted to the electromagnetic attractor via the first magnetic thin plate, the second and subsequent magnetic thin plates are more easily attracted and lifted by the first magnetic thin plate.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a thin plate carrier and a thin plate conveying method capable of surely separating and conveying stacked thin plates one by one. To aim.

[0009]

In order to achieve the above-mentioned object, a thin plate carrier according to the present invention has a carrier frame 1 and front, rear, left and right sides of the carrier frame 1 as shown in the front view of FIG. 1, for example. The four vacuum adsorbers 3 supported at the four corners, another plurality of adsorbers 2 supported by the carrier frame 1 at appropriate intervals in the front-rear direction and the left-right direction, and the vacuum adsorber 3 are provided. After the actuator 3c for moving up and down and the vacuum suction device 3 are actuated to adsorb the four corners of the thin plate 6, the actuator 3c is actuated to move the four corners of the thin plate 6 simultaneously or sequentially before the other parts. Then, the thin plate 6 is lifted to a predetermined height or more, and then the other suction device 2 is lifted.
And a control means for operating the.

Further, in the method of transporting a thin plate according to the present invention, the four corners of the first thin plate 6 from above are sucked by the vacuum suction device 3 from above and the thin plate 6 is placed on the second thin plate 6. After being lifted to a predetermined height or more, the first thin plate 6 is sucked and conveyed by another suction device 2 which is arranged at appropriate intervals in the front-rear direction and the left-right direction.

[0011]

In the thin plate carrier of the present invention, the control means is
First, since the four corners of the thin plate 6 are sucked and lifted by the vacuum suction device 3, the first thin plate 6 from the top is lifted from the four corners, and subsequently the central part is lifted. There is no space between the first thin plate 6 and the second thin plate 6 that creates a vacuum. Therefore, the second thin plate 6
Is prevented from being vacuum-adsorbed by the first thin plate 6 and lifted.

Further, the control means sets the first thin plate 6 to its 4th position.
By raising the corners and raising the first thin plate 6 to a predetermined height or more above the second thin plate 6 and then operating the other adsorbers 2, the thin plate 6 is made sufficiently strong and , Can be adsorbed on average.

In particular, when the other adsorption device 2 is composed of the electromagnetic adsorption device 2, by raising the first thin plate 6 to a predetermined height or more above the second thin plate 6, The thin plate 6 of the first sheet is prevented from being attracted to the electromagnetic attractor 2 via the thin plate 6 of the first sheet.

In the method of transporting a thin plate of the present invention, first, since the four corners of the thin plate 6 are sucked and lifted by the vacuum suction device 3, the second thin plate 6 is the first thin plate 6 as described above. It is prevented from being sucked up by vacuum and being lifted.

Further, the four corners of the thin plate 6 are sucked by the vacuum suction device 3 and the thin plate 6 is lifted to a predetermined height or more above the second thin plate 6, and then the proper intervals are provided in the front-rear direction and the left-right direction. Since the first thin plate 6 is adsorbed by the other adsorbing device 2 which is placed with the thin plate 6 disposed therebetween, the thin plate 6 can be adsorbed sufficiently strongly and evenly.

In particular, when the other adsorber 2 is composed of the electromagnetic adsorber 2, by raising the first thin plate 6 to a predetermined height or more above the second thin plate 6, 2 The thin plate 6 of the first sheet is prevented from being attracted to the electromagnetic attractor 2 via the thin plate 6 of the first sheet.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A thin plate carrier according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 12 by taking the case where the thin plate is a magnetic thin plate as an example.

FIG. 1 is a front view of an overhead traveling crane equipped with a magnetic thin plate carrier according to an embodiment of the present invention, and FIG. 2 is a plan view thereof. This crane 10 is a pillar 11 of a building H
A girder 13 which is supported by a pair of left and right rails 12 supported on the left and right sides so as to be capable of traveling in the front-rear direction, a club trolley 14 which is mounted on the girder 13 so as to be capable of traveling in the left-right direction, and is suspended and supported by the club trolley 14. The telescopic mast 15 and a magnetic thin plate carrier C supported on the lower end of the telescopic mast 15 via a swivel base 16 so as to be fully swivelable.

As shown in FIG. 1, the carrying device C is supported by a carrying device frame 1 and a plurality of supporting devices (below, 8 in this case) at appropriate intervals in the front-rear direction and the left-right direction.
Individual) electromagnetic chucks 2, four vacuum chucks 3 supported at the four corners of the carrier frame 1, and supported below the carrier frame 1 at appropriate intervals in the front-rear direction and the left-right direction. The four fixing pads 4 are provided.

As shown in the plan view of FIG. 3, the carrier frame 1 connects the central portions of the long-axis beams 1a arranged in parallel with each other at an appropriate interval in the front-rear direction, and at the same time, rotates them. A mounting plate 1b connected to the base 16, a pair of left and right connecting beams 1c connecting the long-axis beams 1a with an appropriate interval in the left-right direction, each connecting beam 1c and the mounting plate 1b.
3 pairs of horizontal beams 1d extending in the front-rear direction from each long-axis beam 1a at a position corresponding to, and a plan view connecting the tip ends of the horizontal beams 1d on the left and right sides and the left or right tip of the long-axis beam 1a. In the figure, a V-shaped connecting frame 1e and four guide rail support frames 1f radially arranged from the center of the carrier frame 1 toward the four corners thereof are provided.

Further, in the carrier frame 1, two longitudinal beams 2 are extended from each longitudinal beam 1a between three pairs of lateral beams 1d.
A pair of electromagnetic adsorption device support frames 1g, a pad support frame 1h fixed to both long-axis beams 1a on the left and right outside of the connecting beam 1c, and a screw rod fixed to the upper left and right ends of both long-axis beams 1a. Cradle 1
i and.

Further, as shown in the side view of FIG. 4, the plan view of FIG. 5 and the sectional view of FIG. 6, the carrier frame 1 is provided with a telescopic beam device 51 provided on each guide rail support frame 1f.
Further, the dimension adjusting mechanism 5 is provided, which includes the telescopic driving device 52 that adjusts the length from the center to the tip of the carrier frame 1 of each telescopic beam device 51.

That is, as shown in FIGS. 4 and 5, the telescopic beam mechanism 51 of the dimension adjusting mechanism 5 includes a guide rail 51a fixed on each guide rail support frame 1f and a radial direction to each guide rail 51a. A slider 51b slidably fitted to each other at appropriate intervals, and a slide beam 51c fixed on each pair of sliders 51b.

The extension / contraction drive mechanism 52 is similar to that shown in FIGS.
As shown in FIG. 3, the support frame 5 fixed on the mounting plate 1b
The motor 52b supported by the 2a is used to reduce the speed reduction transmission mechanism 52c.
The pair of left and right screw rods 52d are rotationally driven through the pair of front and rear balance beams 52f connected to the nuts 52e externally fitted to the screw rods 52d so as to be able to move forward and backward in synchronization with the left and right direction. I am trying.

The extension / contraction drive mechanism 52 is composed of the balance beam 52.
f is formed symmetrically in the front-rear direction and each of the long holes 5 formed in both arms thereof
A pin roller 51d protruding downward from a portion of each slide beam 51c close to the base end is slidably inserted into 2g so that the four slide beams 51c in the front, rear, left and right are synchronously moved back and forth in respective axial directions. I have to.

The arrangement of the electromagnetic suction device 2, the vacuum suction device 3 and the fixing pad 4 is as shown in FIG. That is,
The electromagnetic adsorber 2 is supported by the end portions of the horizontal beams 1d on the front and rear sides and the electromagnetic adsorber support frame 1g, and for example, as shown in the sectional view of FIG. The shaft 2a, the adsorber main body 2b fixed to the lower end of the elevating shaft 2a, and the upper end of the elevating shaft 2a are externally fitted to each other.
A washer 2c, which is received from below at the end of the vertical shaft 2a and prevents the lifting shaft 2a and the suction device body 2b from falling down,
The lifting shaft 2a and the pressing spring 2d for urging the adsorber body 2b downward are provided, and the adsorber body 2b is, for example, 100 mm.
It is possible to go up and down with the stroke of.

Further, the lifting shaft 2a, the adsorber body 2b, and the drop-preventing washer 2c are mounted on at least one horizontal beam 1d at a predetermined height during the lifting stroke, for example, about 50 mm or more from the bottom dead center. Sensor 2e that detects that
Is supported.

The vacuum suction device 3 at the four corners is supported by the tip of each slide beam 51c, and as shown in the sectional view of FIG. A suction cup 3b supported through the air cylinder 3c is provided, and an air cylinder 3c that is connected to the upper end of the elevating shaft 3a and moves up and down the elevating shaft 3a, the joint 8 and the suction disc 3b. The lower space of the suction cup 3b is selectively communicated with the vacuum suction device mounted on the club trolley 14 and the atmosphere via the joint 8.

The fixing pad 4 is supported by the tip portion of the central horizontal beam 1d and the pad support frame 1h in the same manner as the electromagnetic adsorption device 2. That is, the sectional view of FIG. 10 or FIG.
As shown in the cross-sectional view of FIG. 1, an elevating shaft 4a that is vertically inserted through a horizontal beam 1d or a pad support frame 1h, and a suction cup 4b fixed to a lower end of the elevating shaft 4a through a joint 8.
And a falling prevention washer 4c which is fitted onto the upper end of the elevating shaft 4a and is received by the cross beam 1d or the pad support frame 1h from below to prevent the elevating shaft 4a and the suction cup 4b from falling downward.
And a pressing spring 4d for urging the lifting shaft 4a and the suction cup 4b downward so that the suction cup 4b can be moved up and down with a stroke of 100 mm, for example.

The above-mentioned crane is equipped with a control panel 17 on the club trolley 14, and runs or stops the girder 13, or runs or stops the club trolley 14 or expands or contracts based on a command given wirelessly from an operation panel held by the operator. Mast 15
Expansion and stop, rotation and stop of the swivel base 16, expansion and contraction of the dimension adjustment mechanism 5, turning on and off of the electromagnetic adsorber 2, vacuum adsorber 3
It is configured to be able to control ON / OFF of the.

Further, the above-mentioned crane gives these control commands to operate the crane in a simulated manner in advance to obtain an optimum control command, stores the optimum control command as a program, and then reads the program later. Is given so that the optimum operation can be reproduced.

As shown in the plan view of FIG. 3 and the side view of FIG. 12, horizontal beams 1d on both the left and right sides of the carrier frame 1 are provided.
An eye plate 1j, which is used when the bundled magnetic thin plates 6 are conveyed, is fixed to the tip of the.

Next, a method of transporting a magnetic thin plate according to an embodiment of the present invention using the crane will be described. After moving the girder 13 and the club trolley 14 of the crane to position the center of the telescopic mast 15 and the carrier C on the center of the stacked magnetic thin plates 6, the air cylinder 3c may be extended or previously extended. After that, the telescopic mast 15 is extended to lower the carrier C at a position where the attractor body 2b of the electromagnetic attractor 2, the suction cup 3b of the vacuum suction device 3 and the suction cup 4b of the pad 4 are received on the upper surface of the magnetic thin plate 6. Stop.

After that, the vacuum suction device is operated and the suction cup 3
The space between b and the magnetic thin plate 6 is evacuated to turn on each vacuum suction device 3, and the suction cups 3b are sucked onto the upper surfaces of the four corners of the magnetic thin plate 6.

After this, as shown in FIG. 13 (a),
In the vacuum suction device 3 at the four corners, the pair of air cylinders 3c located diagonally with respect to each other is shortened so that the two corners diagonally located among the four corners of the magnetic thin plate 6 are, for example, 100 to 15.
Raise about 0 mm.

While the suction cups 3b of the pair of vacuum chucks 3 are raised, the other portion of the magnetic thin plate 6 is held low by the electromagnetic chuck 2, the remaining pair of vacuum chucks 3 and the pad 4. The central portion of the magnetic thin plate 6 is prevented from being lifted earlier than the peripheral portion, and the second magnetic thin plate 6 is prevented from being vacuum-sucked by the first magnetic thin plate 6 from above and lifted.

After that, as shown in FIG. 13B,
The pair of air cylinders 3c located on the remaining diagonals are shortened so that the remaining two corners of the magnetic thin plate 6 are, for example, 100 to 150 m.
Increase by about m. As a result, all four corners of the first magnetic thin plate 6 are lifted by about 100 to 150 mm from the top, and accordingly, the central portion is moved to the second magnetic thin plate 6 thereafter.
50 to 100 mm from the upper surface of the.

Thereafter, the sensor 2e confirms whether or not the magnetic thin plate 6 lifted by the carrier C is lifted from the upper surface of the second magnetic thin plate 6 to a predetermined height or more, and the magnetic thin plate 6 is lifted. If the height is insufficient, there is a possibility that the second or less magnetic thin plates 6 may be magnetically attracted to the electromagnetic attractor 2 via the first magnetic thin plate 6 when the electromagnetic attractor 2 is operated. Therefore, the carrier C is raised a little.

After that, the electromagnetic chuck 2 is turned on, and the magnetic thin plate 6 is supported by the carrier C while the electromagnetic chuck 2 and the vacuum chuck 3 strongly and evenly distribute the load. Although it is possible to turn off the vacuum suction device 3 after turning on the electromagnetic suction device 2, it is possible to more reliably support the magnetic thin plate 6 on the carrier C by using both of them to suck the magnetic thin plate 6. It is more preferable because it can.

When the electromagnetic attractor 2 is switched on, the electromagnetic attractor 2 is lifted by the first magnetic thin plate 6 so high that the second magnetic thin plate 6 cannot be magnetically attracted by the attractor body 2. Therefore, when the electromagnetic attractor 2 is switched on, the second magnetic thin plate 6 is replaced by the first magnetic thin plate 6
There is no danger of being adsorbed on the lower side of the.

In this way, one magnetic thin plate 6 is attached to the carrier C.
After being supported by suction, the telescopic mast 15, the girder 13, the club trolley 14, the swivel base 16 and the like are appropriately controlled to be transported to an arbitrary transport destination and unloaded.

When the bound magnetic thin plates 6 are transported to a predetermined stacking place, for example, as shown in FIG. 12, hooks 18 are attached to the lower ends of the eye plates 1j fixed to the ends of the horizontal beam 1d. It suffices to suspend the connected wire ropes 19 and engage a plurality of the magnetic thin plates 6 that are stacked on each hook 18 to be conveyed.

In the present invention, a vacuum suction device may be used as another suction device instead of the electromagnetic suction device 2. Further, as shown in FIG. 4, one of the elevating shafts 3a of the vacuum suction device 3 at the four corners of the magnetic thin plate carrier C is provided with the number of the magnetic thin plates 6 which are sucked up by the suction cups 3b and lifted. A sheet number detector 7 for detection is supported.
The number detector 7 is composed of, for example, a CCD image sensor.

Here, as shown by the alternate long and short dash line in FIG. 4, the number detector 7 may be used to confirm whether or not the number of the magnetic thin plates 6 lifted by the carrier C is one. If the number of the magnetic thin plates 6 lifted by the carrier C is two or more, for example, the telescopic mast 5 or the air cylinder 3c is momentarily inflated and contracted to shock the carrier C, and the second sheet. The following magnetic thin plate 6 is shaken off.

Although only the magnetic thin plate has been described above, the present invention can of course be applied to a non-magnetic thin plate.

[0046]

As described above, according to the thin plate carrier of the present invention, the control means uses the vacuum suction devices at the four corners of the carrier to control the number of thin plates.
Since the corners are lifted, there is no fear that the central part will be lifted earlier than the peripheral edge of the thin plate, and it is possible to prevent a vacuum space from being created between the first thin plate and the second thin plate. Therefore, it is possible to reliably prevent the second thin plate from being vacuum-adsorbed and lifted by the first thin plate, and it is possible to reliably separate and lift only the first thin plate.

Further, at the time of conveyance, the control means actuates a plurality of other adsorbers arranged at appropriate intervals in the front-rear direction and the left-right direction together with the vacuum adsorber, so that the thin plate is sufficiently strong and average. Since it is adsorbed and supported by, it is possible to prevent the thin plate from waving or hanging down, which is advantageous in preventing deformation of the thin plate and collision with other objects.

In the thin plate carrier of the present invention, in particular, the vacuum adsorbers at the four corners are operated to adsorb the four corners of the thin plate, and a pair of actuators, which are located in one diagonal of each actuator, are operated. Then, the two corners of the thin plate, which are located on one diagonal with respect to each other, are adsorbed and lifted to a predetermined height, and then the pair of actuators located on the remaining diagonal are operated to position on the remaining diagonal of the thin plate. When the control means for raising the two corners to a predetermined height and thereby operating the other adsorber after raising the thin plate to a predetermined height or more is provided, the corners of the thin plate are simultaneously lifted. It is possible to more reliably prevent the central part of the thin plate from being lifted, and it is possible to more reliably separate and lift only the first thin plate, and at the same time, the two corners are lifted, which improves work efficiency. Can.

In the thin plate carrier of the present invention, the other suction devices at the four corners are electromagnetic suction devices, and the vacuum suction devices at the four corners are operated to vacuum-suck the first thin plate from the top. From the above, each actuator is operated sequentially or simultaneously to lift the four corners of the thin plate simultaneously or sequentially before the other parts, and the first thin plate is moved to 2
In the case where a control device for activating the electromagnetic attractor after lifting it above a predetermined height above the first thin plate is provided, the magnetic force of the electromagnetic attractor does not reach the height of the second thin plate. The electromagnetic chuck can be operated after the thin plate is lifted, and it is possible to reliably prevent the second thin plate from being sucked by the electromagnetic chuck and lifted together with the first thin plate.

In the thin plate carrier of the present invention, the four corners of the thin plate are sucked by the vacuum suction device to a predetermined height, particularly inside the vacuum suction device at the four corners below the carrier frame. If a pad that holds the thin plate to a height of four corners or less is provided during lifting, it is possible to prevent the other corners of the thin plate from being lifted up at the same time as the four corners of the thin plate. It is possible to reliably prevent vacuum suction from occurring between the first thin plate and the second thin plate, and it is possible to more surely prevent the second and subsequent thin plates from being vacuum-sucked by the first thin plate.

Further, when the thin plate carrier of the present invention is provided with a size adjusting mechanism for adjusting the distance between the center of the carrier frame and the vacuum suction devices at the four corners, one carrier has a plurality of different sizes. It becomes possible to carry various types of thin plates.

According to the method of transporting a thin plate of the present invention, the four corners of the thin plate are sucked by the vacuum suction device. The thin plate can be lifted up and lifted, and a vacuum space is not created between the first thin plate and the second thin plate, and only the first thin plate is separated and lifted securely. be able to.

Further, at the time of transportation, since a plurality of other adsorbers arranged at appropriate intervals in the front-rear direction and the left-right direction are actuated together with the vacuum adsorber, a thin plate which is easily corrugated or drooping is surely secured. It can be transported in the form of a flat plate, which is advantageous in preventing deformation of the thin plate and collision with other objects.

In the method of transporting a thin plate according to the present invention, in particular, two corners of one of the four corners of the thin plate, which are diagonally opposite to each other, are sucked by a vacuum suction device and lifted to a predetermined height, and then the remaining thin plate When the two diagonal corners of the sheet are sucked by a vacuum suction device and lifted to a predetermined height, and then the thin plate is sucked by another suction device 2 and then the thin plate is conveyed, the corners of the thin plate are It is possible to reliably prevent the central part from being lifted up at the same time when lifting the, and to surely prevent the creation of a vacuum space between the first thin plate and the second thin plate, and thus to more reliably Only the thin plate can be separated and lifted.

Further, in the method of transporting a thin plate according to the present invention,
In particular, the vacuum adsorbers at the four corners are operated to vacuum-adsorb the first thin plate from the top, and then the actuators are operated sequentially or simultaneously to move the four corners of the thin plate simultaneously or sequentially from other parts. If the first thin plate is also lifted above the second thin plate by a predetermined height or more, and then another electromagnetic adsorption device composed of an electromagnetic adsorption device is operated, the electromagnetic adsorption device The first thin plate can be operated after the first thin plate is lifted up to a height where the magnetic force of does not reach the second thin plate, and the second thin plate is attracted to the electromagnetic attractor and the first thin plate It can be more reliably prevented from being lifted together.

Further, in the method of transporting a thin plate of the present invention,
In particular, when holding the central portion of the thin plate to a height of 4 corners or less with other suction devices and pads while sucking the four corners of the thin plate with a vacuum suction device and lifting it to a predetermined height, It is possible to more reliably prevent the other parts of the thin plate from being lifted up at the same time as the four corners, and it is possible to more surely prevent the vacuum suction between the first thin plate and the second thin plate from occurring. It is possible to more reliably prevent the following thin plates from being vacuum-adsorbed and lifted by the first thin plate.

[Brief description of drawings]

FIG. 1 is a front view of an overhead traveling crane equipped with a thin plate carrier according to the present invention.

FIG. 2 is a plan view of an overhead traveling crane including the thin plate carrier of the present invention.

FIG. 3 is a plan view of the carrier frame of the present invention.

FIG. 4 is a side view of the dimension adjusting mechanism of the present invention.

FIG. 5 is a plan view of the dimension adjusting mechanism of the present invention.

FIG. 6 is a sectional view of a dimension adjusting mechanism of the present invention.

FIG. 7 is a plan view showing the arrangement of an electromagnetic chuck and a vacuum chuck of the present invention.

FIG. 8 is a cross-sectional view of an electromagnetic suction device mounting structure of the present invention.

FIG. 9 is a cross-sectional view of a vacuum suction device mounting structure at four corners of the present invention.

FIG. 10 is a cross-sectional view of another vacuum suction device mounting structure of the present invention.

FIG. 11 is a cross-sectional view of still another vacuum suction device mounting structure of the present invention.

FIG. 12 is a side view of the thin plate carrier of the present invention when the bundled thin plates are conveyed.

FIG. 13 is an explanatory diagram of the operation of the present invention.

[Explanation of symbols]

 1 Carrier frame 2 Electromagnetic suction device 3 Vacuum suction device 4 Vacuum suction device 5 Dimension adjustment mechanism 6 Thin plate

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location B65H 5/14 Z 7111-3F B66C 1/02 A 8922-3F 1/06 A 8922-3F

Claims (9)

[Claims] 1. A carrier frame (1) and the carrier frame
(4) Four vacuum adsorbers supported at the front, rear, left and right corners
(3) and a plurality of adsorbers (2) supported on the carrier frame (1) at appropriate intervals in the front-rear direction and the left-right direction,
After the actuator (3c) that moves up and down the vacuum suction device (3) and the vacuum suction device (3) are activated to adsorb the four corners of the thin plate (6), the actuator (3c) is activated to operate the thin plate (6). ) Are simultaneously or sequentially lifted before the other parts, so that the thin plate (6) is lifted to a predetermined height or more and then the other adsorber (2) is operated. A thin plate carrier characterized by being provided. 2. A thin plate by operating the vacuum adsorbers (3) at the four corners.
The four corners of (6) are adsorbed, and one pair of actuators (3c) located in one diagonal of each actuator (3c) are actuated to be positioned in one diagonal of the thin plate (6). After adsorbing the two corners and lifting them up to a predetermined height, activate the pair of actuators (3c) located on the remaining diagonals to set the two corners located on the remaining diagonals of the thin plate (6) 2. The thin plate for a thin plate according to claim 1, further comprising: a control means for activating the other adsorber (2) after the thin plate (6) is lifted to a predetermined height or more by this. Carrier. 3. The other adsorption device (2) at the four corners is an electromagnetic adsorption device (2).
The vacuum suction device (3) at the four corners is actuated to vacuum-suck the first thin plate (6) from the top, and then each actuator (3c) is actuated either sequentially or at the same time. ) Of 4
The corners are lifted simultaneously or sequentially before the other parts, and the first thin plate (6) is lifted above the second thin plate (6) by a predetermined height or more, and then the electromagnetic attraction is applied. The thin plate carrier according to claim 1 or 2, further comprising a control device for operating the container (2). 4. The vacuum suction device (3) sucks the four corners of the thin plate (6) inside the vacuum suction device (3) at the four corners of the lower side of the carrier frame (1) and the predetermined size is obtained. Sheet metal (6) while lifting to height
4. The thin plate carrier according to claim 1, 2 or 3, further comprising a pad (4) for suppressing the height of the plate to four corners or less. 5. The size adjusting mechanism (5) for adjusting the distance between the center of the carrier frame (1) and the vacuum adsorbers (3) at the four corners, according to any one of claims 1 to 4. The thin plate carrier according to claim 2. 6. The first thin plate 6 is sucked from above by the vacuum suction device (3) at four corners of the first thin plate (6).
After lifting above the predetermined height on the first thin plate 6, the first thin plate (6) is adsorbed by another adsorber (2) which is arranged at an appropriate interval in the front-rear direction and the left-right direction. A method for transporting a thin plate, characterized in that the sheet is transported in the same manner. 7. The thin plate (6) is adsorbed by a vacuum adsorber (3) at two corners located diagonally to each other out of the four corners and lifted up to a predetermined height, and then the thin plate (6) is The remaining two corners of the diagonal are adsorbed by the vacuum adsorber (3) and lifted to a predetermined height, and then the thin plate (6) is adsorbed by another adsorber (2) and then the thin plate (6 ) Is conveyed, The conveyance method of the thin plate of Claim 6 characterized by the above-mentioned. 8. The vacuum suction device (3) at the four corners is actuated to vacuum-suck the first thin plate (6) from the top, and then the actuators (3c) are actuated sequentially or simultaneously to operate the thin plates (3). 6) Lift the four corners of 6) simultaneously or sequentially before the other parts, and lift the first thin plate (6) above a predetermined height above the second thin plate (6). 8. The thin plate carrier according to claim 6 or 7, wherein another electromagnetic attractor (2) consisting of the electromagnetic attractor (2) is operated. 9. The central portion of the thin plate (6) is sucked by the vacuum suction device (3) to a predetermined height while the four corners of the thin plate (6) are lifted to a predetermined height, and the other suction device (2) and the pad ( 9. The method of transporting a thin plate according to claim 6, 7 or 8, wherein the height is suppressed to 4 corners or less in 4).