JPH06154919A - Destack feeder - Google Patents

Abstract

PURPOSE:To curtail the number of times of the exchange of a pallet and its time by loading plural piles of sheet stacks on the pallet and carrying them into a destack position, positioning the selected sheet stack in a destack point, in a destack position and supplying it to a press. CONSTITUTION:Plural piles of sheet stacks loaded on a pallet 2 can be supplied continuously or selectively to a press, therefore, the number of times of the exchange of the pallet and the time required for the exchange can be curtailed remarkably. In such a manner, the productivity is improved remarkably, and also, when the position of the sheet stack 1 on the pallet 2 is detected, and an W-Y table 4 is subjected to sequence control so that the selected sheet stack 1 reaches a destack point in the shortest distance, the stack exchange time can be shortened, therefore, the productivity is further improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a destack feeder capable of continuously or selectively supplying a stack of a plurality of sheets stacked on a pallet to a press.

[0002]

2. Description of the Related Art When supplying a sheet material to a conventional press,
A destack feeder is installed on the upstream side of the press, and the sheet materials separated by the destack feeder are conveyed to a position where the transfer feeder installed on the press side can grip.

[0003]

However, in the conventional destack feeder, one stack of sheets is stacked on the pallet, and when the supply of this sheet stack is completed, the sheet stack to be supplied next is stacked. Since it is necessary to replace the pallet with an empty pallet, it takes time to replace the pallet, resulting in poor productivity. The present invention has been made to improve such a problem, and provides a destack feeder capable of continuously and selectively supplying a plurality of stacks of sheets stacked on a pallet, and the number of pallet replacements It is intended to reduce the production cost and improve the productivity accordingly.

[0004]

In order to achieve the above-mentioned object, the present invention carries in a pallet in which a plurality of stacks of sheets are stacked in a predetermined arrangement to a destack position, and after the sheet stack is fed onto the pallet, the pallet is fed. And a pallet transfer device for unloading the pallet from the day stack position and moving the pallet loaded and installed at the destack position in the X-axis and Y-axis directions to position the selected sheet stack on the pallet at the destack point. XY table and a stack lifter that is installed below the destack point and that lifts the sheet stack positioned at the destack point to a position where the vacuum lifter can hold it through a through hole opened in the pallet. And.

[0005]

[Operation] With the above configuration, a stack of multiple piles loaded on a pallet can be continuously or selectively supplied to the press, which can significantly reduce the number of pallet replacements and the replacement time, which results in production. It is possible to improve the sex.

[0006]

Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall perspective view of a destack feeder, which includes a pallet transport device 3 that circulates a pallet 2 having a plurality of sheet stacks 1 and a destack position A, which moves in the X-axis and Y-axis directions. Between the XY table 4 for moving the sheet stack 1 stacked on the pallet 2 to the destack point a, the destack position A, and the floater rack 5 installed on the side of the pallet transport device 3. , A floater exchanging device 7 for selecting one of the plurality of magnet floaters 6 stored in the floater rack 5 and moving it to the destack position A; A stack lifter 8 for moving the sheet stack 1 up and down, and above the destack point a, the sheet stack 1 lifted by the stack lifter 8 from above. A vacuum lifter 9 to adsorb each sheet, the sheet material 1 vacuum lifter 9 is adsorbed
A magnet conveyor 11 is provided to convey a to the skid lifter 10 installed at the grip position of the transfer feeder 30, and the pallet 2 on which the sheet stack 1 is stacked is swung on the unloading side of the pallet conveyor 3. A pallet reversing device 12 that changes the direction of the sheet stack 1 is installed. Sheet stack 1 above
A plurality of through holes 2a are formed in the pallet 2 in which the sheets are stacked and which vertically penetrate at the stack position.

The pallet transfer device 3 for transferring the pallet 2 to the destack position A has a frame 3a on which a roller conveyor 15 is laid in the moving direction of the pallet 2,
A pallet shifter 16 for loading, a pallet shifter 17 for cloth, and a pallet shifter 18 for unloading are installed on the frame 3a. As shown in FIGS. 6 to 8, the loading pallet shifter 16 is located on the pallet loading side of the pallet loading device 3, and is provided with a guide rail 16a in the moving direction of the pallet 2 (arrow a). Guide rail 1
A movable base 16b is movably supported on 6a. A traveling motor 16c is installed on the moving base 16b, and the pinion 1 rotated by the traveling motor 16c.
6d is meshed with a rack 16e laid along the guide rail 16a, and a moving base 16b is movable by a traveling motor 16c. The moving base 16
A rotary shaft 16g is supported by b in the direction of movement by a bearing 16f. A pair of pawls 16h are fixed to both ends of the rotary shaft 16g at a distance slightly larger than one side of the pallet 2, and these The claw 16h is the rotary shaft 1
Rotary actuator 16i connected to one end of 6g
By rotating the rotating shaft 16g, it is possible to rotate from a horizontal position to a substantially upright position.

On the other hand, the cloth pallet shifter 17 has an X-
It is installed on the side of the Y table 4 and is shown in FIGS.
As shown in FIG. 1, a guide rail 17a is laid in a direction parallel to the X-axis direction of the XY table 4, and a movable base 17b is movably supported on the guide rail 17a. A traveling motor 17c is installed on the moving base 17b, and a pinion 17d rotated by the traveling motor 17c is meshed with a rack 17e laid along the guide rail 17a to move by the traveling motor 17c. The base 17b is movable. A rotary shaft 17g is supported on the movable base 17b by a bearing 17f along the moving direction, and a pawl 17h is fixed to one end of the rotary shaft 17g and the pawl 17g is attached.
The h can be rotated from a horizontal position to a substantially upright position by rotating the rotary shaft 17g by a rotary actuator 17i connected to one end of the rotary shaft 17g.

The pallet shifter 18 for carrying out is shown in FIG.
As shown in FIG. 14, it is located on the side of a roller conveyor 20 provided in parallel with the loading side of the pallet 2 and has a guide rail 18 in the pallet unloading direction (arrow B).
a is installed, and a movable base 18b is movably supported on the guide rail 18a. The moving base 1
A traveling motor 18c is installed at 8b, and a pinion 18d rotated by the traveling motor 18c is meshed with a rack 18e laid along the guide rail 18a. The traveling motor 18c moves the moving base 18b. It is freely movable. A rotary shaft 18g is supported on the movable base 18b by bearings 18f along the moving direction, and a pair of pawls 18h are fixed to both ends of the rotary shaft 18g at intervals slightly larger than one side of the pallet 2. At the same time, these claws 18h can be rotated from a horizontal position to a substantially upright position by rotating the rotary shaft 18g by a rotary actuator 18i connected to one end of the rotary shaft 18g. 18j in FIG.
Is a fixed stopper, and 18k is a movable stopper that is rotatable by a stopper cylinder 18m.

On the other hand, as shown in FIGS. 15 to 17, the XY table 4 is provided with a Y-axis table 4b movably in the Y-axis direction on a guide rail 4a laid on the frame 3a in the Y-axis direction. ing. A guide rail 4c is laid on the Y-axis table 4b in the X-axis direction orthogonal to the Y-axis, and the X-axis table 4d is attached to the X-axis table 4d on the guide rail 4c.
It is movably supported in the axial direction. The X-axis table 4d has a substantially square shape slightly larger than the pallet 2 and has a square hole 4e formed in the center thereof, and a roller conveyor 21 is laid vertically and horizontally around the square hole 4e. On the X-axis table 4d, the pallet 2 has X-axis and Y-axis.
It is movable in the axial direction.

A Y-axis direction stopper 4f for stopping the pallet 2 loaded by the loading pallet shifter 16 at a predetermined position is provided on one side of the X-axis table 4d, and is positioned at a right angle to the Y-axis direction stopper 4f. An X-axis direction stopper 4g is installed, a movable stopper 4k that can be undulated by a stopper cylinder 4f is provided at a position facing the Y-axis direction stopper 4f, and a stopper is provided at a position facing the X-axis direction stopper 4g. Movable stoppers 4i which are rotatable in the horizontal direction by cylinders 4h are respectively provided so that the pallet 2 can be stopped at a fixed position on the X-axis table 4d by an operation described later.

Ball screw shafts 4m and 4n are provided in the vicinity of the guide rail 4a laid in the Y-axis direction and the guide rail 4c laid in the X-axis direction so as to be parallel to them. A part of a Y-axis table 4b is screwed onto a ball screw shaft 4m provided in the Y-axis direction, and a Y-axis motor 4p composed of a servo motor connected to one end of the ball screw shaft 4m is used to form the ball screw shaft. By rotating 4 m, it is possible to move in the Y-axis direction. A part of an X-axis table 4d is screwed onto a ball screw shaft 4n provided in the X-axis direction, and the ball screw shaft 4n is rotated by an X-axis motor 4r connected to one end of the ball screw shaft 4n. By doing so, the X-axis table 4d can be moved in the X-axis direction.

On the other hand, the floater exchanging device 7 provided between the floater rack 5 and the destack position A has a cradle 7a provided above the destack position A in the X-axis direction, as shown in FIGS. A pair of guide rails 7b is laid on the guide rail 7b, and a shuttle 7c on which two magnet floaters 6 can be mounted is movably supported on the guide rails 7b. A circular material floater 6 ₁ for separating the circular sheet stack 1 is fixed in advance on one end side of the shuttle 7c, and a profile material floater 6 ₂ stored in the floater rack 5 on the other end side. Can be placed interchangeably.

As shown in FIGS. 18 and 19, the floater 6 ₁ for a circular member has a placing portion for the sheet stack 1 on a floater base 6a, and a permanent magnet 3 is provided around the placing portion. An individual floater member 6b is provided.
The surface of the floater member 6b facing the sheet stack 1 is recessed into a substantially V shape, and the opposite surface is
The screw shaft 6c is screwed together. Each screw shaft 6c is connected to a motor 6f via a bevel gear 6d and an interlocking shaft 6e. By rotating each screw shaft 6c by this motor 6f, each floater member 6b is guided by the guide rails 6k, and the sheet stack. The adjustment position can be detected by the encoder 6g connected to the interlocking shaft 6e.

Further, for example, six floaters 6 ₂ for profile material are prepared in advance, and are constructed as shown in FIGS. 20 and 21. Eight bracket having i.e. square hole 6h in the central portion of the flow database 6a of the same size as the floater 6 ₁ flow database 6a for circular member is being opened, the pair of long holes 6r around this square hole 6h 6i is attached by an adjusting screw 6j so as to be movable and adjustable. Four floater members 6m are attached to these brackets 6i, and a positioning member 6n is attached to the remaining brackets 6i.

[0016] On the other hand floater rack 5 for storing the profiles for floater 6 _2, as shown in FIGS. 22 to 25, floater for profiles in the rack body 5a 6 ₂ each shelf 5
For example, a shelf assembly 5b is provided in c for storing two shelves. The shelf assembly 5b is composed of, for example, three shelves 5c and a vertical frame 5d connecting these shelves 5c, and guide rails 5r laid vertically on both sides of the rack body 5a.
The end of a chain 5f that is supported by the rack body 5a and that bypasses the sprocket 5e provided on the upper portion of the rack body 5a is connected to the top of the shelf assembly 5b. The other end of the chain 5f is connected to the tip of the piston rod 5h of the lift cylinder 5g fixed to the lower side surface of the rack body 5a.
The shelf assembly 5b can be moved up and down along the guide rails 5d via f.

The rack body 5a is mounted on a rail 5j laid on a base 5i, and the vertical feed cylinder 5
It is movable in the Y-axis direction orthogonal to the movement direction of the shuttle 7c by k, and the rack body 5a is also movable.
Stopper cylinders 5m for stopping the selected shelves 5c of the shelf assembly 5b at the same height as the shuttle 7c are provided on both sides of the shelf assembly 5b. Stopper 5 protruding for each
It is designed to lock n.

On the other hand, the floater exchanging device 7 is
The shuttle 7c on which the trophator 6 is placed and moves,
Flow for profiles in floater rack 5 on shuttle 7c
Type 6 ₂Floater 6 for deformed material that has been placed or has been used up
₂... is stored in a predetermined shelf 5c of the floater rack 5.
The data loading / unloading mechanism 7d. Floater loading / unloading mechanism
7d is attached to the pedestal 7a as shown in FIGS.
A guide rail 7e is laid along the moving direction of the carriage 7c.
And the movable table 7f is supported on this guide rail 7e.
The traveling motor 7g is mounted on the moving base 7f.
Has been.

The pinion 7h rotated by the traveling motor 7g is meshed with a rack 7i laid along the guide rail 7e, and is moved along the guide rail 7e by rotating the pinion 7h by the traveling motor 7g. The table 7f can be moved, and the rotary table 7f is used to move approximately 9
A rotary shaft 7k that is rotated by 0 ° is provided. A claw body 7m is provided on the rotating shaft 7k so that the claw body 7m can be disengageably engaged with a locking portion 6p provided on the upper surface of the floater base 6a of the profiler floater 6 _2-. It has become.

As shown in FIG. 25, the shuttle 7c is movable in the X-axis direction by a long-stroke shuttle drive cylinder 7n provided on one side of the gantry 7a, and the shuttle 7c is pulled out onto the shuttle 7c. fixing stopper 7p and the movable stopper 7r are provided for fixing the profile for floater 6 ₂ that the shuttle 7c. The movable stopper 7r is rotatable by a stopper cylinder 7s, and is retracted to a position where it does not interfere when the profiler floater 6 ₂ is taken in and out.

On the other hand, in the stack lifter 8 installed at the destack position A, as shown in FIG. 30, a lift cylinder 8a composed of both rod cylinders is fixed substantially vertically to a frame 3a. The lift cylinder 8a is located at the destack point a, and the piston rod 8 is projected upward.
A receiving seat 8c for pushing up the sheet stack 1 on the pallet 2 from below is attached to the tip of b, and
A movable portion 8f of a stroke detector 8e composed of a linear sensor is attached to the tip of the piston rod 8d protruding downward, and the lift height of the sheet stack 1 can be detected by this stroke detector 8e. ing.

Further, the vacuum lifter 9 provided above the destack position A has a plurality of lift cylinders 9a which are selectively used according to the size of the sheet material 1a, and protrude below the lift cylinders 9a. A vacuum cup 9c for adsorbing the sheet material 1a is attached to the tip of the piston rod 9b formed. The sheet material 1 a adsorbed by the vacuum lifter 9 is conveyed to the skid lifter 10 by the magnet conveyor 11.
As shown in FIG. 31, the magnet conveyor 11 is provided with double blank detectors 11a and 11b at two locations on the way to prevent double feeding of the sheet material 1a, and a double blank is detected by the first double blank detector 11a. In this case, the double blank is dropped from the chute 11c, the sheet material 1a is continuously conveyed, and the double blank becomes the second double blank due to a failure or a detection error of the first double blank detector 11a. The sheet material 1a is conveyed to the detector 11b, and when the double blank is detected here, the conveyance of the sheet material 1a is stopped.

On the other hand, the skid lifter 10 on which the sheet material 1a conveyed by the magnet conveyor 11 is temporarily placed is shown in FIG.
2 to 34, a lift table 10 whose vertical movement is guided by a guide post 10b on a frame 10a.
c is provided, and the lift table 10c is vertically movable by a lift cylinder 10d. Guide rails 10e are laid on the lift table 10c in a direction orthogonal to the sheet material 1a loading direction, and a plurality of skids 10f are movably supported on the guide rails 10e. These skids 10f are respectively screwed into the respective screw portions 10g and 10h of the screw shaft 10i having the screw portions 10g and 10h which are reverse screws, and the screw shaft 10i is rotated by the rotary actuator 10j, whereby the sheet material 1a is rotated. The intervals between the skids 10f can be adjusted according to the size of the skid.

The pallet reversing device 12 provided on the pallet unloading side of the pallet carrying device 3 has a turntable 12a on which the pallet 2 is placed, as shown in FIGS. A support shaft 12b is provided at the center of the lower surface of the turntable 12a so as to project therefrom, and the support shaft 12b is fixed to the mount 3a.
Is rotatably supported by a bearing 12d. A gear 12f is interposed between the turntable 12a and the upper end of the support shaft 12b, and a gear 12h rotated by a turning motor 12g is meshed with the gear 12f. The turning motor 12g turns the turntable 12b around the support shaft 12b. 12a is designed to be rotated by approximately 180 ° in the reverse direction.

In FIG. 35, 12i is the turntable 1.
It is a position detector that detects the rotational position of 2a. See also FIG.
7 and FIG. 38 show a blank detector 25 installed on the pallet loading side of the pallet loading device 3, in which a maximum number of sheet stacks 1 that can be stacked on the pallet 2 are mounted on a mounting plate 25a having substantially the same size as the pallet 2. Detector 25b with the same array
Is installed. The detector 25b is, for example, a photoelectric detector, and can detect the sheet stack 1 on the pallet 2 by light.

The operation will now be described. When the circular sheet material 1a is carried into the transfer press 31 for molding, the sheet stack 1 is placed on the pallet 2 in a predetermined arrangement, and the pallet conveying device 3 is used. The pallet 2 is carried into the carry-in side, and the magnetic floater 6 moves the shuttle 7c so that the circular material floater 6 ₁ is at the destack position A. When the operation is started in this state, the rotary shaft 16g provided on the moving base 16b of the loading pallet shifter 16 is rotated by about 90 ° by the rotary actuator 16i, and the pawl 16b comes into contact with the rear surface of the pallet 2. Then, in this state, the traveling motor 16c conveys the movable base 16b in the pallet conveying direction B by one pitch, and the blank detector 25 detects the presence or absence and the position of the sheet stack 1 on the pallet 2.

After that, the pallet 2 is further conveyed by one pitch by the pallet shifter 16 for loading, and is loaded into the XY table 4 at the standby position. On the XY table 4, there are a Y-axis stopper 4f and an X-axis stopper 4g, and movable stoppers 4i and 4k. After these pallets 2 are positioned at predetermined positions on the XY table 4, Y The XY table 4 is moved in the XY directions by the shaft motor 4p and the X-axis motor 4r, and the sheet stack 1 for supplying the sheet material 1a is first in the destack position A.
Is positioned at the destack point a. In this state, the piston rod 8b of the stack lifter 8 extends upward, passes through the through hole 2a opened in the pallet 2, and the seat 8c for receiving the sheet stack 1 on the pallet 2 reaches a predetermined height from below. To raise.

A floater 6 ₁ for circular material is on standby above the destack point a, and the raised sheet stack 1
Reaches between the floater members 6b of the floater 6 ₁ for circular material,
The floater members 6b are separated one by one by the magnetic action. And the separated upper one is the lift cylinder 9
It is adsorbed by the vacuum cup 9c lowered by a, raised to a height at which the magnet conveyor 11 can be adsorbed, and transferred to the magnet conveyor 11. The sheet material 1a attracted to the magnet conveyor 11 is the first
After the double blank is detected by the double blank detector 11a, it reaches the skid lifter 10 through the second blank detector 11b, and is placed on the skid 10f lifted by the lift cylinder 10d. Then skid 10
f is lowered to a position where the transfer feeder 30 can be held, and at this position, the sheet material 1a is held by the transfer feeder 30 and carried into the transfer press 31. When the above operation is repeated and the supply of one stack of the sheet stack 1 on the pallet 2 is completed, the XY table 4 is moved again and the next sheet stack 1 is moved to the destack point a. The supply of the sheet material 1a is started.

When all the sheet stacks 1 on the pallet 2 have been carried in, the pallet 2 which has become empty is conveyed one pitch in the X-axis direction by the pallet shifter 17 for cloth and is provided on the pallet shifter 18 for unloading. It is positioned at a predetermined position between the fixed stopper 18k and the movable stopper 18j, and during this time, the next pallet 2 is loaded onto the XY table 4 by the loading pallet shifter 16 and the next sheet stack 1 is supplied. Is started. The empty pallet 2 is carried out to the pallet reversing device 12 side by the carry-out pallet shifter 18 and removed from the turntable 12a.

The above is the case where the circular sheet material 1a is carried into the press. Next, the case where the profile material is carried in will be described. When carrying the profiled material, a magnet floater 6 matching the shape of the profiled material is required. Profiles for floater 6 _2, have been floater member 6b is adjusted according to the shape of the profile in advance loading, multiple groups such as six is stored in each shelf 5c of floater rack 5, profiles of carrying Shelf 5c storing profiler floater 6 ₂ suitable for
Is specified, the shelf assembly 5b is moved up and down by the lift cylinder 5g so that the shelf 5c becomes the same height as the shuttle 7c of the floater exchanging device 7, and the profiler floater 6 ₂ stored in the shelf 5c. The rack main body 5a is moved in the Y-axis direction by the vertical feed cylinder 5k so that the ... Is aligned with the shuttle 7c.

In this state, the floater loading / unloading mechanism 7
The moving base 7f of d is moved into the floater rack 5, and the rotary actuator 7j causes the rotary shaft 7h to rotate approximately 90 °.
By being rotated, the claws 7m provided on the rotary shaft 7h are engaged with the locking portions 6p of the floater base 6a. In this state, the moving table 7f is moved to the shuttle 7c side by the traveling motor 7g, and one of the profile material floaters 6 ₂ engaged with the claws 7m is transferred onto the shuttle 7c, and the stopper 7p.
Positioned and fixed by. After that, the shuttle 7c is moved in the X-axis direction by the shuttle drive cylinder 7n, and the profiler floater 6 ₂ on the shuttle 7c is stopped at the destack position A. Once you have a set of profiles for the floater 6 ₂ in the manner of completion or more, the sheet stack of profiles 1
The pallet 2 on which is placed is circulated in the same manner as when the circular material is loaded and is loaded into the transfer press 31.

Further, when the profiled material is, for example, a disk divided into two parts and both are mounted on the same pallet 2, the pallet 2 is swiveled in order to align the directions of the sheet materials 1a. There is a need. Next, the operation will be described. After the sheet stack 1 having the same direction as that of the circular material is carried into the transfer press 31, the pallet 2 is once carried out to the pallet reversing device 12. Then, the turntable 12a may be turned by approximately 180 ° by the turning motor 12g so that the direction of the sheet stack 1 is aligned so as to be the same as that of the already loaded sheet stack 1, and the sheet stack 1 may be conveyed to the destack position A again. Further, the sheet stack 1 placed on the pallet 2 aligned in the same direction
The sheet stack 1 can be changed in direction by reversing 180 ° by the pallet reversing device 12, so that the left and right parts can be molded by the transfer press 31.

It should be noted that each floater 6 ₂ is provided with an identification display such as a bar code so that the intended floater can be accurately taken in and out of the profiler floater 6 ₂ stored in the floater rack 5, and this is displayed by the automatic identification device. You may make it identify. Also, the sheet stack 1 placed on the pallet 2 is detected, and the XY table 4 is sequenced so that the target sheet stack 1 can move to the destack point a at the shortest distance based on the obtained information. By controlling, the stack exchange time can be significantly shortened.

[0034]

As described in detail above, according to the present invention, a plurality of piles of sheet stacks are stacked on a pallet and carried to the destack position, and the selected sheet stack on the pallet is set to the destack position at the destack position. Since it is positioned and supplied to the press, the number of pallet replacements and the time required for replacement are significantly greater than those in which one stack of sheets was stacked on a conventional pallet and supplied to the press. Can be reduced. This greatly improves the productivity and also detects the position of the sheet stack on the pallet and sequences the XY table so that the selected sheet stack reaches the destack point at the shortest distance. If this is the case, the stack exchange time can be shortened, which further improves productivity.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a destack feeder according to an embodiment of the present invention.

FIG. 2 is an overall plan view of a destack feeder according to an embodiment of the present invention.

3 is a view from the direction C in FIG.

FIG. 4 is an arrow view from the direction D in FIG.

FIG. 5 is a plan view showing a pallet transfer device for a destack feeder according to an embodiment of the present invention.

FIG. 6 is a plan view showing a carry-in pallet shifter of the pallet carrier according to the embodiment of the present invention.

FIG. 7 is a view from the direction E in FIG.

FIG. 8 is a view taken in the direction of the arrow E ′ in FIG.

FIG. 9 is a plan view showing a cloth pallet shifter of the pallet conveyor according to the embodiment of the present invention.

FIG. 10 is a view from the F direction in FIG.

FIG. 11 is a cross-sectional view taken along the line F′-F ′ of FIG.

FIG. 12 is a plan view showing a carry-out pallet shifter of the pallet carrying apparatus according to the embodiment of the present invention.

13 is a view from the direction G in FIG.

14 is a sectional view taken along the line G′-G in FIG.

FIG. 15 is a plan view showing an XY table of the pallet carrying device according to the embodiment of the present invention.

16 is a view from the direction of H in FIG.

17 is a view from the direction I in FIG.

FIG. 18 is a plan view of a floater for circular members of a destack feeder according to an embodiment of the present invention.

19 is a view from the direction J in FIG.

FIG. 20 is a plan view showing a profiler floater for a destack feeder according to an embodiment of the present invention.

FIG. 21 is an arrow view from the K direction in FIG. 20.

FIG. 22 is a front view showing a floater rack of a destack feeder according to an embodiment of the present invention.

23 is a view taken in the direction of the arrow L in FIG.

FIG. 24 is a view from the direction M in FIG.

FIG. 25 is a plan view showing a floater exchanging device for a destack feeder according to an embodiment of the present invention.

FIG. 26 is an arrow view from the N direction of FIG. 25.

FIG. 27 is a plan view of the floater loading / unloading mechanism of the destack feeder according to the embodiment of the present invention.

28 is a view from the direction of O in FIG. 27.

FIG. 29 is a view from the direction P in FIG. 27.

FIG. 30 is a front view showing the stack lifter of the destack feeder according to the embodiment of the present invention.

FIG. 31 is a side view showing the vicinity of the magnet conveyor of the destack feeder according to the embodiment of the present invention.

FIG. 32 is a front view showing a skid lifter of the destack feeder according to the embodiment of the present invention.

FIG. 33 is a view from the direction of Q in FIG.

FIG. 34 is a view from the direction of the arrow R in FIG. 32.

FIG. 35 is a plan view showing a pallet reversing device for a destack feeder according to an embodiment of the present invention.

36 is a cross-sectional view taken along the line ZZ of FIG.

FIG. 37 is a front view showing a blank detector of the destack feeder according to the embodiment of the present invention.

38 is a view from the direction B in FIG. 37.

[Explanation of symbols]

1 ... Sheet stack, 2 ... Pallet, 2a ... Through hole, 3
... Pallet transport device, 4 ... XY table, 8 ... Stack lifter, 9 ... Vacuum feeder, A ... Destack position, a ... Destack point.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display area // B65H 1/30 320 8922-3F

Claims (1)

[Claims] 1. A pallet 2 on which a plurality of stacks 1 of sheets are stacked in a predetermined arrangement is carried into a destack position A, and the pallet 2 after the sheet stack 1 is supplied onto the pallet 2
Pallet Conveyor Device 3 for Carrying Out the Car from Day Stack Position A
Then, the pallet 2 installed at the destack position A and carried in is moved in the X-axis and Y-axis directions to move the selected sheet stack 1 on the pallet 2 to the destack point a.
To the XY table 4 positioned below the destack point a, and the sheet lifter 1 positioned below the destack point a and positioned at the destack point a through the through hole 2a opened in the pallet 2 to be attached to the vacuum lifter 9 by the vacuum lifter 9. A destack feeder including a stack lifter 8 for lifting to a holdable position.