JPH11106053A - Square plate stacking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent the damaging or uneven parts of the stacked surface of a square plate and breaking or damage during transportation or stacking by laying a protective sheet formed in a size for covering the entire opposing surface of the square plates between the opposing surfaces of the square plates stacked in the vertical direction. SOLUTION: By driving an inversion mechanism 4 and a lifting mechanism 5, an outer wall board A to be first carried is inverted from and back. Then, without inverting front and back an outer wall board A as a square plate to be carried next, when the inverted outer wall board A and the non-inverted outer wall board A are stacked on each other, the surface side of the outer wall board A is covered and protected by laying a protective sheet B between the opposing surfaces. Thus, since the protective sheet B formed to have a size for covering the entire surface of the outer wall board A is laid between the surfaces of the outer wall boards A and A stacked on each other, the surface side of the outer wall board A is prevented from being flawed, made uneven, broken or damaged during transportation or stacking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method of stacking rectangular plates having an uneven shape such as a plaster board, a wooden board, a resin board, or the like used as an outer wall board. The present invention relates to a square plate stacking apparatus used for laying sheets between surfaces.

[0002]

2. Description of the Related Art Conventionally, as a method for transporting an outer wall board as described above, for example, a plurality of outer wall boards are stacked vertically one on top of the other with the front side and the back side facing each other, or There is a transportation method of stacking up and down by contacting the surface and the front side.

[0003]

However, when a plurality of outer wall boards are directly stacked as described above, the upper and lower outer wall boards rub against each other due to vibration generated during transportation, and the upper and lower outer wall boards are shocked during stacking. Since the boards come into contact with each other, scratches and irregularities are likely to be formed on the surface side of the outer wall board, which may cause breakage or damage, resulting in a problem that commercial value and construction accuracy are impaired.

[0004] In view of the above problems, the present invention lays a sheet formed between the opposing surfaces of the vertically stacked rectangular plates so as to cover the entire opposing surface of the rectangular plates. In addition, it is an object of the present invention to provide a stacking device for a square plate, which can surely prevent scratches and irregularities on the opposing surface of the square plate, and prevent damage or damage.

[0005]

According to the first aspect of the present invention,
Lifting means for lifting the square plate supplied to the stacking portion to which the square plate is supplied, a square plate supplied to the stacking portion, and an opposing surface of the square plate lifted by the lifting means The present invention is characterized in that the present invention is a square plate stacking device provided with a supply means for supplying a sheet formed in such a size that the entire opposing surface of the square plate is covered.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, before the rectangular plate supplied to the stacking section is lifted by the lifting means, the square plate supplied to the stacking section is removed. It is a square plate stacking device provided with a reversing means for reversing the upper and lower surfaces to be opposite.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the lifting means is constituted by an adsorber for adsorbing and holding the square plate supplied to the stacking portion. The present invention is characterized in that it is a square plate stacking device provided with a switching means for applying a negative pressure to a part or a plurality of adsorbers closely attached to the square plate.

According to a fourth aspect of the present invention, in addition to the configuration of the first or second aspect, the square plate lifted by the lifting means and the square plate supplied to the stacking unit are overlapped with each other. It is a square plate stacking device provided with a moving means for relatively moving in the direction.

[0009]

According to a first aspect of the present invention, there is provided a rectangular plate stacking device which lifts a square plate (eg, an outer wall board) supplied to a stacking unit by artificial means or mechanical means (eg, negative pressure, adhesive force, magnetic force, etc.). ) And once lifted, before or after the next square plate is supplied to the stacking unit, the supply means is driven to form a size that covers the opposing surface (front surface side) of the square plate. The sheet is fed between opposing faces of a square plate stacked one above the other. The square plate held by the lifting means is
Superimposed on the square plate supplied to the stacking unit, between the opposing surfaces of the square plate stacked vertically, for example, since a sheet formed of synthetic rubber, soft resin, etc. is laid, during transport or stacking, It is possible to reliably prevent scratches or unevenness on the superposed surface of the square plate, or prevent breakage or damage. In addition, it is possible to positively prevent the stacking position of the vertically stacked rectangular plates from being displaced due to the contact resistance of the sheet, and it is possible to supply a plurality of square plates in a vertically aligned state.

According to a second aspect of the present invention, in addition to the operation of the first aspect, the square plate supplied to the stacking portion is turned by the reversing means so that the upper and lower surfaces (both front and rear surfaces) are reversed. After inversion, the inverted square plate is held by the lifting means and lifted once, and the next square plate is supplied to the stacking unit without being turned upside down.When the upper and lower square plates are stacked, the supply means is driven. Therefore, since the sheet is laid between the opposed surfaces (between the surfaces) of the inverted square plate and the non-inverted square plate, scratches or irregularities are attached to the surface side of the square plate during transportation or stacking, Breakage or damage can be reliably prevented.

According to a third aspect of the present invention, in addition to the operation of the first or second aspect, when a single adsorber or a plurality of adsorbers are pressed against the uneven surface of the rectangular plate.
A gap is formed on the adsorption surface of the adsorber, and the negative pressure caused by a part or a plurality of the adsorbents is reduced. By releasing the adsorption by the child, the negative pressure by other parts of the adsorber or the remaining adsorbents is increased, and the negative pressure necessary for holding the rectangular plate by suction is stably obtained.

According to a fourth aspect of the present invention, in addition to the operation of the first or second aspect, the rectangular plate stacking apparatus supplies the sheet between the opposing surfaces of the vertically stacked square plates, and then drives the moving means to drive the moving means. The upper and lower rectangular plates are relatively moved in a direction in which they are superimposed on each other, and the upper and lower rectangular plates are close to or in contact with each other, and the sheet is laid between the opposing surfaces.
The direction and position of the seat can be reliably prevented from being displaced,
The sheet can be laid so that the opposing surface of the rectangular plate is covered.

[0013]

According to the present invention, a sheet formed so as to cover the entire opposing surface of the rectangular plate is laid between the opposing surfaces of the rectangular plates stacked up and down, so that it can be transported or stacked. In addition, it is possible to reliably prevent scratches and irregularities on the superposed surface of the rectangular plate, and to prevent breakage or damage. In addition, it is possible to positively prevent the stacking position of the vertically stacked rectangular plates from being displaced due to the contact resistance of the sheet, and it is possible to supply a plurality of square plates in a vertically aligned state.

Further, when one or a plurality of adsorbers are pressed against the uneven surface of the rectangular plate, a gap is formed on the adsorbing surface of the adsorber, and the negative pressure caused by the adsorber decreases. Is driven to release the adsorption by a part or a plurality of the adsorbents whose negative pressure has decreased, thereby increasing the negative pressure by the other parts of the adsorber or the remaining adsorbents and adsorbing the square plate. Since a negative pressure necessary for holding the plate is obtained, the stacking operation of the square plates can be stably performed.

Further, since the upper and lower rectangular plates are relatively moved in a direction in which they are overlapped with each other, the upper and lower rectangular plates are brought close to or in contact with each other, and the sheet is laid between the opposing surfaces. Displacement of the orientation and position can be reliably prevented, and the sheet can be laid so that the opposing surface of the rectangular plate is covered.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawings show, as an example of a square plate, an outer wall material stacking apparatus used for laying a protective sheet between outer wall boards stacked vertically, and in FIGS. 1 and 2,
The outer wall material stacking apparatus 1 is configured such that a long outer wall board A is placed in a direction perpendicular to a feed direction with a long outer wall board A facing upward, and set between a carry-in conveyor 2 and a carry-out conveyor 3. It is transported to the reversing section C which has been completed. The reversing unit C is provided with a reversing mechanism 4 for reversing the outer wall board A formed in a concavo-convex shape or a flat shape, and on the stacking unit D set on the unloading conveyor 3, an inverted outer wall is provided. A lifting mechanism 5 for temporarily lifting the board A is provided, and the outer wall board A lifted by the lifting mechanism 5 is provided on the side of the stacking portion D.
A supply mechanism 6 for supplying a protective sheet B formed in a size and a shape so as to cover the entire surface of the outer wall board A is disposed below the outside.

In the above-described carry-in conveyor 2, the carry-in belts 2a... Stretched in the vicinity of the starting end of a receiving belt described later are rotated in the feed direction by a drive motor with a speed reducer (not shown), and are carried in. The outer wall board A with the front side placed thereon facing upward is transported and supplied to the reversing section C. The unloading conveyor 3 rotates the unloading belts 3a... Stretched in the vicinity of the end of the receiving belt 12 in the feed direction by a drive motor with a speed reducer (not shown), and has been inverted or not rotated by a reversing mechanism 4 described later. The inverted outer wall board A is transported and supplied to the stacking unit D,
The outer wall boards A, A stacked vertically by a lifting mechanism 5 described later are transported and supplied to the next step.

And a carry-in belt 2a and a carry-out belt 3a.
Are stretched in parallel with the feeding direction at intervals larger than the conveying width of the receiving belt 12, which will be described later, and the end of the loading belt 2a and the starting end of the unloading belt 3a are It is stretched slightly into the space. In the embodiment, the conveyors 2 and 3 are configured by a belt conveyor, but may be configured by a transport unit such as a chain conveyor or a thrust conveyor.

As shown in FIG. 3, the reversing mechanism 4 converts the outer wall board A conveyed to the reversing section C into a rotating frame 10.
When transferred on a receiving belt 12 stretched on the lower frame portion 11 in a direction perpendicular to the feeding direction, the frame portions 11, 11
The upper and lower surfaces of the outer wall board A are pressed and held by the upper and lower holding pads 13 attached to the outer wall board A, and the outer wall board A held by the holding pads 13 is turned upside down (for example, about 180 degrees) so that the front side faces downward. The outer wall board A, which is turned over,
It is once transferred to a receiving belt 12 stretched over the lower frame portion 11 and then transferred to the unloading conveyor 3. In the embodiment, the outer wall board A is held upside down by holding the holding pads 13.
For example, an outer wall board A is placed on a mounting portion such as a reversing table or a conveyor.
After placing and holding, the placing portion is moved about 18
The outer wall board A may be turned upside down by rotating by 0 degrees.

The rotating frame 10 rotatably supports the supporting shafts 14, 14 projecting from both ends of the frame by bearings 15, 15 disposed on both sides thereof. And both ends of a rotating shaft 16 suspended on the lower part of the frame,
18 and an interlocking chain 19 for power transmission. The rotation motor 20 with a reduction gear disposed on one side of the lower part includes sprockets 20a, 20a and a drive chain 20b, and sprockets 17, 18 and an interlocking chain 1.
9, the support shafts 14, 14 and the rotating shaft 16 are rotated, and the rotating frame 10 is moved in one direction so that the outer wall board A held by the holding pads 13 is turned upside down (for example, about 180 degrees). Rotate or rotate forward and backward.

The receiving belts 12 are stretched on frame portions 11, 11 provided above and below the rotating frame 10, in parallel with the feeding direction, opposite to the front and back surfaces of the outer wall board A conveyed to the reversing portion C. It is arranged to face both the front and back surfaces of the outer wall board A except for the pressing portions of the holding pads 13 to be described later. In other words, the rolls 22, 22 are suspended around the front and rear ends of the support frames 21, 21 laid on the frame portion 11, and the receiving belt 12 is stretched between the rolls 22, 22, and the rotating frame 10 or the roll The motor 22 is rotationally driven in the feed direction by a rotary motor with a speed reducer (not shown) provided at 22.

The holding pads 13 are made of a flexible elastic material such as synthetic rubber (sponge rubber or urethane rubber) or a soft resin, and are provided between the receiving belts 12 stretched over the frame portion 11. Are mounted facing the front and back surfaces of the outer wall board A transferred to the lower receiving belts 12. The pressing cylinders 23 attached to the frame portion 11 move from the pressing position where the holding pads 13 are pressed against both the front and back surfaces of the outer wall board A transferred to the receiving belts 12 and the conveying surface of the receiving belts 12. The holding pads 13 are moved up and down to the release position where they are immersed inside.

As shown in FIGS. 4 and 5, the lifting mechanism 5 sucks and holds the outer wall board A conveyed to the stacking unit D by the suction unit 28, and then conveys the outer board A to the stacking unit D. The next outer wall board A is stacked via the protective sheet B on the upper surface side. The suction unit 28 is provided on the lower surface side of the elevating frame 27 erected above the stacking section D so as to face the entire back surface side of the outer wall board A turned upside down.
Is installed.

As shown in FIG. 11, the suction pad 29 is formed of, for example, a flexible elastic material such as synthetic rubber or soft resin, and has a size substantially equal to the entire length and width of the outer wall board A. At the same time, the inside of the suction pad 29 is divided into a plurality of parts in the width direction or the length direction to form suction chambers 30 (chambers). The intake chamber 30
The suction pad 29 is formed in communication with an intake hole 29 a formed on the suction surface side of the suction pad 29, and is connected to a switching box 34 via a suction box 33 and a suction duct 35 described later.
The switching box 34 is connected to the negative pressure generator 32 (for example, an intake blower, a vacuum pump, etc.) via a main duct 36.
Connected to The elevating cylinder 31 disposed above the stacking unit D has a lowering position where the suction pad 29 is in close contact with the back side of the outer wall board A transported to the stacking unit D,
The suction unit 28 is moved up and down to an ascending position where the operation of the supply mechanism 6 described later is allowed. In the embodiment, the outer wall board A is suction-held by one suction pad 29, but the entire outer wall board A may be suction-held by a plurality or a plurality of suction pads 29.

The negative pressure generator 32 is provided with suction boxes 33... Disposed above the lifting frame 27 and the suction chamber 3 of the suction pad 29.
.. Are connected, and the intake boxes 33 and the switching boxes 34 are connected by intake ducts 35. The switching boxes 34 are connected to a main duct 36 connected to the suction side of the negative pressure generator 32, and the discharge side of the negative pressure generator 32 is, for example, an exhaust gas opened to the atmosphere via a dust collector, a filter, or the like. The duct 37 is connected. The opening / closing cylinder 38 attached to the switching box 34 includes a damper 39.
Is released and suction is performed, and the outer wall boat A is suction-held by the suction pad 29. The damper 39 is closed to block the intake air, and the suction by the suction pad 29 is released.

A stopper 41 is provided on a mounting table 40 provided at the lower portion of the stacking section D on the unloading side so that the stoppers 41 can be moved in and out of the longitudinal front end of the outer wall board A conveyed to the stacking section D. It is pivoted. The retractable cylinder 42 disposed on the mounting table 40 moves the stopper 41 into and out of a protruding position where it comes into contact with the longitudinal front end of the outer wall board A and a retracted position where the contact is released. I do. The mounting table 40 is engaged with a screw shaft 42...
An end of the screw shaft 42 and a rotating shaft 43 suspended in a direction orthogonal to the coaxial end are connected to each other via bevel gears 44 and 45 so as to be able to transmit power, and for example, a rotating means such as a handle or a motor. , The stoppers 41 are moved in the feed direction in accordance with the size of the outer wall board A, and adjusted to a position where the suction unit 28 is pressed against the upper surface side central portion of the outer wall board A. .

Below the stacking section D, between the unloading belts 3a constituting the unloading conveyor 3 and the outer wall board A
Are arranged opposite to the lower surfaces of both end sides of each of them. The elevating cylinder 47 disposed at the lower part on the same side is retracted below the transport surface of the unloading conveyor 3 and at a raised position approaching the outer wall board A sucked and held by the suction unit 28 at a predetermined interval. Is moved up and down to the immersion position. A receiving pad 48 formed of a flexible elastic material such as synthetic rubber or soft resin is mounted on the upper surface side of the lifting table 46.

The suction unit 2 is provided at both ends of the lifting frame 27.
A holding plate 49 is provided opposite to both ends of the outer wall board A to be sucked and held at 8. When the outer wall board A conveyed to the stacking section D is sucked and held by the suction unit 28, the advancing / retreating cylinder 50 disposed at the same side end presses and holds the holding plates 49 on both ends of the outer wall board A. .

On both sides of the stacking portion D, width-adjusting plates 51 are provided so as to face both ends of the outer wall board A. The reciprocating cylinder 52 disposed on the same side abuts the width-adjusting plates 49 on both ends of the outer wall board A conveyed to the stacking unit D, and the width is adjusted so that the outer wall boards A, A are stacked vertically. To send.

The above-described supply mechanism 6 includes a suction unit 28
After lifting the outer wall board A sucked and held at a predetermined height,
Below the outer wall board A, holding plates 71 and 72 described later are provided.
The protective sheet B in the form of a sheet or a film sandwiched between is drawn out and supplied. Before or after superimposing the upper and lower outer wall boards A, A, the protective sheet B is separated into a size that covers the front side of the outer wall board A, and the protective sheet B is placed in a state where the front side of the outer wall boards A, A is covered. Laying.

A protective sheet B wound in a roll shape is rotatably loaded in the roll loading section 55 disposed on the side of the apparatus. The protection sheet B has a width that covers the surface side of the outer wall board A, and has a single or a plurality of materials (for example, synthetic rubber, soft resin, and the like) having a strength necessary to protect the surface side of the outer wall board A. Formed or knitted.
In addition, the feed-out side end of the protection sheet B is stretched between the feed roll 56 and the presser roll 57 that are mounted on the feed path, the dancer rolls 58, and the auxiliary rolls 59 and 60 that are mounted on the front and rear sides thereof. The rolls 56 and 57 are rotated in the feed direction by a feed motor (not shown) with a speed reducer, and the protective sheet B sandwiched between the rolls 56 and 57 is fed out and supplied to the separation unit 62. The connector 61 heat-welds and connects the terminal end of the previously loaded protective sheet B and the start end of the preliminary loaded protective seal B.

As shown in FIGS. 4 and 6, the separating portion 62 has a receiving plate 63 extending in the width direction facing the lower surface of the protective sheet B supplied below the separating portion 62 and extending upward. On the lower surface side of the mounting frame 68, pressing members 64 and 66 made of synthetic rubber are provided so as to be vertically movable, facing the upper surface side of the protective sheet B. The pressing cylinder 65 fixed to the rear upper surface of the mounting frame 68 has a pressing member at a height at which the rear upper surface is pressed and the pressing is released from a cut portion of the protective sheet B cut by a cutting blade 69 described later. 64 up and down. The pressing cylinder 67 fixed to the upper surface on the front side of the mounting frame 68 has a protective sheet B except for a cut portion cut by the cutting blade 69.
The pressing member 66 is moved up and down to a height at which the front and rear upper surfaces of the pressing member are prevented from contacting the pressing and holding plates 71 and 72.

A gap 63a is formed on the upper surface of the receiving plate 63 on the feeding side so that a cutting blade 69 described later is allowed to protrude slightly upward.
Are formed in the width direction, and a holding plate 7 to be described later is
1, 72 form notch portions 63b... Into which insertion is permitted. The rodless cutting cylinder 70 fixed to the lower surface side of the receiving plate 63 is provided with the cutting blade 6 in a direction in which the protective sheet B pressed by the pressing member 66 is cut in the width direction.
9 reciprocate.

As shown in FIG. 7, the holding plates 71 and 72 are formed in a size and a shape to hold the protection sheet B fed out to the notch portion 63b of the receiving plate 63, and the receiving plate 6 is formed.
3 are attached to the front end of the lower surface of the movable frame 73 erected opposite to the feed-out end of No. 3 at intervals corresponding to the notches 63b. The holding plates 71 are formed at the front end of the lower surface side of the movable frame 73 by notches 63b of the receiving plate 63.
And is horizontally fixed facing the upper surface side of the protective sheet B fed out. The holding plates 72 are fixed to an upper peripheral surface of a support shaft 74 which is mounted on a front end portion on the lower surface side of the movable frame 73.
Is provided rotatably in the direction pressed against the lower surface side of the protection sheet B fed out to the notch portion 63b.

And a locking portion 74a fixed to the support shaft 74.
And a locking member 73a fixed to the movable frame 73, a spring member 75 is stretched to urge the holding plate 72 in a direction to be opened at a predetermined angle. The holding cylinder 76 fixed to the rear end on the upper surface side of the movable frame 73 abuts the operating piece 74 b having its cylinder rod fixed to the support shaft 74, and rotates the support shaft 74 against the elasticity of the spring member 75. Protective sheet B
The opening and closing rotation of the holding plate 72 is carried out between a closed state in which the end portion is held and an open state in which the end is released. The holding plate 7
For example, a non-slip member having a large contact resistance such as synthetic rubber or soft resin may be attached to the holding surfaces of the first and second members 72.

The movable frame 73 has a height that allows the outer wall board A to be transported, and the rails 77,
7, and is provided so as to be horizontally movable in a direction facing the payout side end of the receiving plate 63. In addition, a circling chain 80 is stretched between a sprocket 78 pivotally supported on both sides of the starting end and a sprocket 79 pivotally supported on both sides of the terminating side. Connected to the department. The movement motor 81 with a speed reducer disposed at the lower end on the end side rotates the orbiting chain 80 forward and reverse in the feeding direction via the sprockets 81a and 81b and the drive chain 81c, and the protection sheet B fed onto the receiving plate 63. Is the forward position where is held by the holding plates 71 and 72;
The holding plate 71 has a size enough to cover the surface side of the outer wall board A,
The movable frame 73 is moved back and forth to the retracted position at which the protection sheet B sandwiched at 72 is fed out.

In the embodiment shown in the drawings, the operation when the protective sheet B is laid between the outer wall boards A, which are vertically stacked by the outer wall material stacking apparatus 1, will be described. First, as shown in FIGS. 1 and 2, the outer wall board A placed on the carry-in conveyor 2 is conveyed to the reversing unit C while facing up, and the lower receiving belt 12 constituting the reversing mechanism 4. , One outer wall board A is transferred. When the non-reversed outer wall board A is transported to the reversing section C, the transport of the receiving belt 12 is stopped based on detection by a photoelectric sensor or the like, and then, as shown in FIGS. Press and hold the upper and lower surfaces of the outer wall board A. The rotating frame 10 is rotated so that the outer wall board A held by the holding pads 13 is turned upside down so that the front side faces downward (for example,
About 180 degrees). After the inversion, the holding by the holding pads 13 is released, and the inverted outer wall board A is transferred to the lower receiving belts 12.

Next, as shown in FIGS. 4 and 10, the inverted outer wall board A placed on the receiving belts 12 is transferred to the carry-out conveyor 3, and the outer wall board placed on the carry-out conveyor 3 is transferred. A is conveyed to the stacking unit D while facing down. When the inverted outer wall board A is transported to the stacking unit D,
The transport of the outer wall board A is stopped by the stopper 41, and the width adjusting plates 49, 49 are brought into contact with both ends of the outer wall board A, and the two outer wall boards A, A are vertically aligned so as to be stacked.

Next, as shown in FIG.
Is lowered, and the suction pad 2
9 to the back side of the outer wall board A,
The outer wall board A is sucked and held by the negative pressure generated on the sucking surface. At the same time, the holding plates 49, 49 are pressed and held on both ends of the outer wall board A sucked and held by the suction unit 28.
At this time, the suction pad 29 is pressed against the uneven surface of the outer wall board A.
Is pressed, a gap is formed in the suction surface of the suction pad 29, and the negative pressure in the suction chamber 30 formed in communication with the suction hole 29a is reduced. By closing the damper 39 of the switching box 34 connected to the other and shutting off the intake, the other intake chamber 3
The negative pressure generated at 0 and 30 increases, and the negative pressure necessary to hold the outer wall board A by suction is obtained.

Next, as shown in FIG. 12, after the outer wall board A held by the suction unit 28 is once lifted to a height at which the operation of the supply mechanism 6 is allowed, a holding plate 71 constituting the supply mechanism 6 is used. , 72 sandwiches the protective sheet B fed out onto the receiving plate 63 of the separating portion 62, closes to the surface side of the outer wall board A held by the suction unit 28, and has a length corresponding to the entire length of the outer wall board A. Take out the protection sheet B.

On the other hand, when the next outer wall boards A are conveyed to the reversing section C, the reversing mechanism 4 is not driven, the lower receiving belts 12 are rotated in the feed direction, and 3 is conveyed to the stacking unit D with the outer wall boards A. When the non-inverted outer wall board A is transported to the stacking portion D, the transport of the outer wall board A is stopped by the stopper 41, and the outer wall board A is shifted by the shift plates 49, 49.

Next, as shown in FIG. 13, the elevator 46 is raised to lift the non-inverted outer wall board A in a face-up state. Touch Before superimposing the outer wall boards A, A, the protective sheet B fed onto the receiving plate 63 of the separating portion 62 is pressed by the pressing members 64, 66, and the protective sheet B drawn out between the outer wall boards A, A. Is cut by a cutting blade 69 to separate the protective sheet B into a size that covers the front side of the outer wall board A.

Next, after slightly pulling the separated protective sheet B, the protective sheet B is drawn out to a position where the surface side of the outer wall boards A, A is covered, and then the suction unit 28 is lowered.
The outer wall board A held by the suction unit 28 is superimposed on the outer wall board A placed on the elevator 46. The inverted outer wall board A is mounted on the non-inverted outer wall board A mounted on the lift 46, and the outer sheets A, A are brought into contact with each other and the protective sheet B is clamped. 28, the pressing by the holding member 66 is released, and the holding by the holding plates 71, 72 is released, and the entire surface of the outer wall boards A, A is covered and protected by the protection sheet B.

Next, as shown in FIG. 14, the suction unit 28 is raised and returned to the standby position. Thereafter, the stopper 41 is immersed, and the outer wall boards A, A placed on the unloading conveyor 3 are transported and supplied to the next process while being stacked vertically. In the same manner, the mechanisms 4, 5, and 6 are similarly driven to turn over the outer wall board A to be transported first, and the outer wall board A to be transported next is not turned over. Unreversed outer wall board A
When stacking up and down, the protection sheet B between the opposing surfaces
To cover and protect the front side of the outer wall board A.

As described above, since the protective sheet B formed so as to cover the entire surface of the outer wall board A is laid between the surfaces of the outer wall boards A, A stacked one above the other, it is necessary to carry the protective sheet B during transportation or stacking. In addition, it is possible to prevent the surface side of the outer wall board A from being scratched or uneven, damaged or damaged, and to reliably prevent the dimensional accuracy and the commercial value from being impaired. In addition, due to the contact resistance of the protection sheet B, it is possible to positively prevent the stacked position of the outer wall boards A, A stacked vertically from being displaced, and to keep the two outer wall boards A, A aligned vertically. It can be transported and supplied to the next step.

Moreover, when the suction pad 29 is pressed against the uneven surface of the outer wall board A, a gap is formed on the suction surface of the suction pad 29, and the negative pressure in the suction chamber 30 formed in communication with the suction hole 29a. Even if the pressure decreases, the damper 39 of the switching box 34 connected to the intake chamber 30 is closed to shut off the intake, so that the negative pressure generated in the other intake chambers 30 and 30 increases, and the outer wall board A Since a negative pressure required for holding by suction is obtained, the work of stacking the outer wall boards A can be stably performed.

Further, the outer wall board A held by the suction unit 28 and the outer wall board A lifted by the lift 46 are relatively moved in a direction in which the outer wall board A is vertically stacked.
A is brought close to or in contact with each other, and the protective sheet B is laid between the opposing surfaces, so that the orientation and position of the protective sheet B can be reliably prevented from being displaced during the laying, and the surface of the outer wall boards A, A The protection sheet B can be laid so that the side is covered.

In the correspondence between the configuration of the present invention and the above-described embodiment, the square plate stacking apparatus of the present invention corresponds to the outer wall material stacking apparatus 1 of the embodiment, and similarly, the square plate is formed of the outer wall board A. The sheet corresponds to the protection sheet B, the reversing means corresponds to the reversing mechanism 4, and the lifting means corresponds to
The supply means corresponds to the supply mechanism 6, the suction element corresponds to the suction pad 29, and the switching means corresponds to the switching box 34, the opening / closing cylinder 38, and the damper 39. The moving means is the suction unit 28
The present invention is not limited only to the configuration of the above-described embodiment, although it corresponds to the lifting cylinder 31 and the lifting platform 46 and the lifting cylinder 47.

In the above-described embodiment, an example in which two outer wall boards A, A are stacked up and down has been described.
, Four, five, etc., can be used for the operation of vertically stacking the outer wall boards A, and is not limited to the number of stacked sheets as in the embodiment.

In the embodiment, the outer wall board A mounted on the receiving belt 12 of the reversing mechanism 4 is held by the holding pads 13 so as to be turned upside down in the width direction. The outer wall board A may be held by means or the like and turned upside down in the length direction.

Further, the above-described apparatus is configured such that the outer wall board A, which is transported while being turned face up, is turned upside down and the upper and lower outer wall boards A, A are stacked facing each other. For example, the next outer wall board A conveyed in a face-down state may be turned upside down and the upper and lower outer wall boards A, A may be stacked facing each other. In addition, the protective sheet B is laid between the front and back surfaces of the outer wall boards A... Which are stacked with the front side superposed on each other, or between the front and back surfaces of the outer wall boards A. Is also good. In addition, it can also be used for stacking rectangular plates formed in a shape such as a rectangle, a square, a hexagon, a pentagon, a triangle, a diamond, a star, a circle, and an ellipse.

[Brief description of the drawings]

FIG. 1 is a side view showing a stacking operation by an outer wall material stacking device.

FIG. 2 is a plan view showing a state in which the outer wall boat is transported by the conveyor.

FIG. 3 is a front view showing a configuration of a reversing mechanism.

FIG. 4 is a front view showing a configuration of a lifting mechanism and a supply mechanism.

FIG. 5 is a plan view showing a piping state of the negative pressure generator.

FIG. 6 is a side view showing a separating operation of the protection sheet.

FIG. 7 is a side view showing a state in which a protective sheet is held by a pair of holding plates.

FIG. 8 is a side view showing a transport state of the outer wall board.

FIG. 9 is a side view showing a reversing operation by the reversing mechanism.

FIG. 10 is a side view showing a transported state of the inverted outer wall board.

FIG. 11 is a side view showing a suction state of the outer wall board by the suction unit.

FIG. 12 is a side view showing a state where the outer wall board is lifted.

FIG. 13 is a side view showing a proximity state of the outer wall board.

FIG. 14 is a side view showing a state in which outer wall boards are vertically stacked.

[Explanation of symbols]

 A: outer wall board B: protective sheet C: reversing section D: stacking section 1: outer wall material stacking apparatus 2: first conveyor 3: second conveyor 4: reversing mechanism 5: lifting mechanism 6: feeding mechanism 10: rotating frame 12 ... Receiving belt 13 Holding pad 28 Suction unit 29 Suction pad 29a Suction hole 30 Suction chamber 32 Negative pressure generator 34 Switching box 35 Suction duct 39 Damper 46 Elevating table 69 Cutting blade 71, 72 ... holding plate

Claims (4)

[Claims] 1. A lifting means for lifting a square plate supplied to a stacking part in which a plurality of square plates are stacked up and down, a square plate supplied to the stacking part, and the lifting means A stacking device provided between a surface facing the lifted rectangular plate and a feeding means for supplying a sheet formed in a size to cover the entire surface facing the rectangular plate; 2. A reversing means for reversing the rectangular plate supplied to the stacking part so that the upper and lower surfaces thereof are reversed before lifting the square plate supplied to the stacking part by the lifting means. Item 2. A square plate stacking apparatus according to Item 1. 3. The lifting means comprises an adsorber for adsorbing and holding a rectangular plate supplied to the stacking unit, and a part or a plurality of adsorbers closely adsorbed on the rectangular plate. 3. The stacking device according to claim 1, further comprising switching means for applying a negative pressure to the stacking plate. 4. A rectangular plate according to claim 1, further comprising moving means for relatively moving the rectangular plate lifted by said lifting means and the rectangular plate supplied to said stacking portion in a direction in which they are superimposed on each other. Stacking device.