JPS60248560A - Delivery method for sheat of accumulated sheet materials - Google Patents

Abstract

PURPOSE:To feed a sheet material without a stop by moving a pallet to carry out a sheaf of accumulated sheet materials while the sheet materials are temporarily accumulated on a stocker. CONSTITUTION:After a sheal of accumulated sheet materials S is formed on a pallet 9, stockers 22, 23 are projected above and below the accumulation sheaf, the pallet 9 is lowered to a designated carry-out position, the accumulation sheaf is carried out with the pallet 9 at the carry-out position, and another pallet 9 is placed on a pallet receive table 2. Subsequently, the pallet 9 and the stockers 22, 23 are relatively moved up and down, so that the upper surface of a sheet receive portion of the pallet 9 is positioned higher than the upper surfaces of the stockers 22, 23 to deliver the sheet materials S temporarily accumulated on the stockers 22, 23 to the sheet receive portion of the pallet 9. After that, the stockers 22, 23 are forced to retire to the side of the sheet materials S. Thus, the supply of sheet materials will not be stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to transferring a stack of sheet materials between two members.
The present invention relates to a stacked bundle delivery method.

(Technical background and prior art of the invention) In the manufacturing process of sheet materials, a plurality of sheet materials supplied from a supply means such as a belt conveyor are stacked together for later processes such as taking out and packaging. Accumulation is widely practiced. Once a predetermined number of sheet materials have been stacked to form a predetermined stacked bundle in this way, it is necessary to move this stacked bundle from the stacking position to the unloading position. They are often stacked on a sheet receiving member that is movable to and from a delivery position.

However, if the sheet material is supplied to the stacking position while the sheet receiving member loaded with a predetermined stacked bundle is being moved, the sheet material will naturally not be stacked on the sheet receiving member but will be scattered. Therefore, as shown in Japanese Unexamined Patent Publication No. 56-165656, a sheet material accumulation method has been proposed in which the supply of sheet materials is stopped while the sheet receiving member is moved from the accumulation position to the unloading position. However, if the sheet material supply is temporarily stopped in this way, the stacking processing speed will naturally decrease.

For example, as shown in Japanese Patent Application Laid-Open No. 577166228, a device has been proposed that shifts the stacked bundle laterally and quickly transfers it onto an empty pallet, making it unnecessary to interrupt the sheet material supply. According to the paper, there is a risk of scratches on the lowest sheet material in the stack.

In order to prevent the sheet materials from being damaged as described above, there are two stacking positions for sheet materials, and while the sheet receiving member is leaving one stacking position, the sheet material supply system is switched and the sheet material is transferred to the other stacking position. Although it has been considered to accumulate sheet materials on a sheet receiving member, setting two accumulation positions in this way requires a large space for sheet material accumulation.

(Object of the Invention) The present invention has been made in view of the above circumstances, and it is an object of the present invention to accumulate sheet materials in a small space without stopping the supply of sheet materials and without damaging the sheet materials.
It is an object of the present invention to provide a method for delivering and delivering a stacked bundle that allows the bundle to be carried out.

(Structure of the Invention) The stacked bundle delivery method of the present invention includes placing a pallet having sheet receiving portions on its upper surface arranged approximately horizontally at appropriate intervals on a pallet receiving stand that is moved up and down by a lifter. After supplying sheet materials onto the sheet receiving portions of this pallet and forming a stacked bundle of a predetermined number of sheet materials on the pallet, a stocker is placed above the stacked bundle that can pass between the sheet receiving portions. is projected, the pallet is lowered to a predetermined carry-out position while sheet materials are temporarily stacked on the stocker, and the stacked bundle is carried out together with the pallet at the carry-out position, and then another pallet is placed on the pallet holder. Then, by moving the pallet and the stocker relative to each other in the vertical direction, the upper surface of the sheet receiving portion of the pallet is positioned above the upper surface of the stocker, and the sheet materials temporarily accumulated on the stocker are removed. The material is transferred onto the sheet receiving portion of the pallet, and then the stocker is moved out to the side of the sheet material.

If the pallet is moved and the stacked bundle is carried out while the sheet materials are being temporarily stacked in the stocker as described above,
There is no need to stop the supply of sheet material. If the sheet materials are delivered by moving the stocker and the pallet relative to each other in the vertical direction, the sheet materials at the lowest position in the stack will not be scratched, so that the sheet materials will not be scratched. Also, as mentioned above, since stacked bundles are transferred between the stocker and the pallet that move relative to each other in the vertical direction, only one stacking position needs to be set, and a large space is required to install the stacking device. Nor.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1.2 is a front view and a side view showing a sheet material accumulating apparatus that accumulates sheet materials using a stacked bundle delivery method according to an embodiment of the present invention. A lid 3 for supporting a pallet pedestal 2 on the upper part is disposed near the center inside the frame 1 of the stacking device. The pallet pedestal 2 is moved up and down by the lifter 3 between an accumulation position shown by a solid line in FIG. 2 and an unloading position shown by a phantom line in FIG. On the upper side of the pallet pedestal 2 at the above-mentioned accumulation position, a sheet material S such as an aluminum web (thin plate) is supplied one by one onto the pallet pedestal 2 by being driven in the six directions of the arrows in FIG. A conveyor means 4 such as a belt conveyor is provided. Further, a front stopper 5, a pair of side stoppers 6, and a back stopper 7 are arranged above the pallet holder 2, and the stacking position of the sheet materials S is defined by these stoppers 5.6.7. There is. As clearly shown in FIG. 2, the back stopper 7 is movable in the front-back direction (left-right direction in FIG. 2) along the guide 8, and the side stopper 6 is also movable in the left-right direction (in the left-right direction in FIG. It is movable in the left and right directions) and can accommodate sheet materials S of different sizes.

A pallet 9 as shown in FIG. 4 is placed on the pallet holder 2. As shown in FIG. This pallet 9 has sheet receiving parts 10 on its upper surface extending in the front and rear direction at intervals from each other.
A plurality of (eight in this example) are provided, and a stocker passage hole 11 is provided between each sheet receiving portion 10 . Furthermore, cushioning materials 10a made of, for example, rubber are fixed to the surfaces of the sheet receiving portions 10 of the pallet 9 of this example by pasting or the like.

A ball screw 11 is vertically supported at the four corners of the frame 1 and is rotatably driven by a stocker vertical drive device 16 via a chain 12, a supro kerato 13, a left and right connecting shaft 14, and a bevel gear 15. A stocker frame 18 is screwed onto the screw 17. Two stocker guide rods 19 are fixed to the stocker frame 18 and extend in the front and back direction on both the left and right sides.
A stocker 22.23 is supported via a pair of sliding members 20.21 so as to be movable in the front and back direction. As shown in FIG. 1, the stocker 23 has a plurality of stocker arms 23a (seven in this embodiment B as an example) extending toward the other stocker 22. The stocker 22 also has a stocker arm 22a extending opposite to the stocker arm 23a. These stocker arms 22a123a are fixed at positions that align with the stocker passage holes 11 of the pallet 9 placed at predetermined positions on the pallet holder 2 described above.

Stocker front and rear drive devices 24 and 25 are disposed at the front and rear of the stocker frame 18, respectively, and the stocker frame 1
The chain 28 is suspended by the drive device 24 on a sprocket 26.27 supported on the sprocket 29.3 supported on the stocker frame 18
The chain 31 hung on the chain 31 is driven by the other drive device 25.

Each of these chains 28, 31 has a stocker 22.
23 is supported and therefore the chain 28.31
When driven, the stockers 22 and 23 move in the front and back direction along the stocker guide rod 19.

Hereinafter, with reference also to the schematic diagram shown in FIG. 3, the process of stacking and carrying out the sheet materials S by the sheet material stacking device having the above configuration will be described. When the sheet material S is supplied by the conveyor means 4, an empty pallet 9 is first placed on a predetermined position on the pallet pedestal 2, and the pallet pedestal 2 is moved by the lifter 3.
It is raised to the accumulation position shown by the solid line in FIG. At this time, the stocker frame 18 is set at the vertical position shown in FIG.
Driven by 1. The tip of the stocker arm 22a is set at a position where it exits further forward than the front stopper 5 (to the left in FIG. 2). The other stocker 23 is also driven by the stocker longitudinal drive device 25, and the tip of its stocker arm 23a is set at a position where it exits to the rear (to the right in FIG. 2) of the back stopper 7. Therefore, the sheet material S is conveyed by the conveyor means 4.
When these sheet materials S are fed one by one above the pallet pedestal 2, the positions of these sheet materials S are regulated by the stoppers 5.6.7 as described above, and the sheets of the pallet 9 placed on the pallet pedestal 2 are are accumulated on the receiving part 10 [Fig. 3 (a)
)]. As described above, since the cushioning material 10a is provided on the surface of the sheet receiving portion 1o, the sheet material S dropped onto the sheet receiving portion 10 will not be damaged.

The fact that a predetermined number of sheet materials S has been supplied and a predetermined stacked sheet bundle S' is formed on the pallet 9 is detected by, for example, a counter that counts the number of supplied sheet materials S or a detection that detects the height of the stacked bundle S'. When detected by a device or the like, the aforementioned stocker back and forth drive devices 24, 25 are driven, and both stockers 22, 23 are moved backward and forward, respectively, to a position where each stocker arm 22a123a protrudes above the pallet 9. Figure 13(b)].

The sheet material S is fed by the conveyor means 4 without interruption, and as described above, the stocker arm 22a,
The sheet material S supplied after 23a is projected is temporarily stacked on these stocker arms 22a, 23a. While the sheet materials S are being temporarily stacked in this way, the pallet pedestal 2 is lowered by the lifter 3 to the above-mentioned carry-out position [Fig. 3(C)], and at this carry-out position, the stacked bundle S' is For unloading, packaging steps, etc., the pallet 9 is taken out from the pallet pedestal 2 by a known method. If the stacked bundle S' is carried out together with the pallet 9 in this way, the carrying out operation becomes easy, and since there is no need to directly contact the sheet material S, the sheet material S is not damaged.

After carrying out the stacked bundle S', another empty pallet 9 is placed on the pallet holder 2. When the pallet pedestal 2 is raised to the stacking position, the stocker vertical drive device 16 described above is driven and the pole screw 17 is rotated. As a result, the entire stocker frame 18 is lowered, and the stocker 22.23 is moved by its stocker arm 22a.
, 23a enters the stocker passage hole 11 of the pallet 9 and is lowered until the upper surfaces of the arms 22a and 23a are located further below the upper surface of the sheet receiving section 10 [third
Figure (d)]. Then, until then, the stocker arms 22a, 2
Several sheet materials S that have been temporarily stacked on the pallet 3a are transferred onto the sheet receiving portion 10 of the pallet 9.

After the sheet material S is transferred to the sheet receiving portion 1o of the pallet 9, the stocker back and forth drive device 24.25 is driven, and the stocker 22.23 has its stocker arms 22a, 23a whose tips are attached to the front stopper 5 and the back stopper 7, respectively. The stocker arms 22a and 23a are moved forward and backward, respectively, to a position where the stocker arms 22a and 23a are moved further outward than the front and rear ends of the sheet material S. After the stocker arms 22a and 23a have been moved sideways away from the sheet material S in this manner, the stocker vertical drive device 16 is driven, and the stocker frame 18 is moved so that the stocker arms 22a and 23a are in the position shown in FIG. 3(a). It is raised until it returns, and thereafter the process described above is repeated.

As explained above, the stacked sheet bundle S' is transferred from the stocker arms 22a, 23a to the pallet 9.
This transfer is performed by moving the stocker arm 22a123a and the pallet 9 relative to each other in the vertical direction.
The lowest sheet material S of the stacked sheet bundle S' is not rubbed, so that this sheet material S is not scratched.

Note that the stocker vertical drive device 16, the stocker front and rear drive devices 24, 25, etc. are not limited to chain drive, but can also be driven by a timing belt.

(Effects of the Invention) As explained in detail above, according to the stacked bundle delivery method of the present invention, sheet materials can be continuously supplied by setting only one sheet stacking position, so stacking tables are provided at two locations. It becomes possible to stack sheet materials at a sufficiently high speed in a small space without any need for it, and it is also possible to reliably prevent sheet materials from being damaged when transferring the stacked bundles. Furthermore, in the method of the present invention, the sheet materials are stacked on a pallet and the sheet materials are transported together with the pallet, so that the sheet materials can be transported easily and quickly. Since there is no need to directly push or grip the sheet material, damage to the sheet material during transport is reliably prevented.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of an apparatus for carrying out the method of the present invention, Fig. 2 is a side view of the above-mentioned apparatus, Fig. 3 is an explanatory diagram explaining the operation of the above-mentioned apparatus, and Fig. 4 is a front view showing an example of the apparatus for carrying out the method of the present invention. It is a perspective view showing an example of a pallet used. 2... Pallet holder 3... Lifter 4... Conveyor means 9... Pallet 10... Sheet receiving part 11
... Stocker passage hole 19 ... Stocker guide rod 20.21 ... Sliding member 22.23 ... Stocker 22a123a ... Stocker arm 24.25 ... Stocker front and rear drive device 26.21.2
9.30...Sprocket 28.31...Chain S...Sheet material S'...Stacked bundle @3 (0) (b) (C) (d)

Claims (1)

[Claims] A pallet whose upper surface has sheet receiving portions arranged approximately horizontally at appropriate intervals is placed on a pallet pedestal that is moved up and down by a lifter, and sheet materials are supplied onto the sheet receiving portions of this pallet. After forming a stacked bundle of a predetermined number of sheet materials on the pallet, a stocker that can pass between the sheet receiving parts is protruded above the stacked bundle,
Lowering the pallet to a predetermined carry-out position while temporarily stacking sheet materials on the stocker, carrying out the stacked bundle together with the pallet at the carry-out position, and then placing another pallet on the pallet holder; Next, by moving the pallet and the stocker relative to each other in the vertical direction, the upper surface of the sheet receiving portion of the pallet is positioned above the upper surface of the stocker, and the sheet materials temporarily stacked on the stocker are transferred to the sheet receiving portion of the pallet. A stacked bundle delivery method in which the stacked bundle is delivered to the top of the sheet material, and then the stocker is exited to the side of the sheet material.