JPH10181884A - Article stacking method and device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To longitudinally and latitudinally and orderly stack articles on a pallet by recovering a table and repeating aligning and stacking of a next article after only the table is slid and moved in the horizontal direction, an article on the table is transferred on the pallet and the pallet is lowered by the height of the article after the transfer. SOLUTION: In an article stacking device 3, articles 1 are segmented by a required number by an introducing conveyor 10, articles 1 of a prescribed number are aligned in a line by an aligning conveyor 20 and a movable table 30 which freely slides and moves in the horizontal direction is provided. The articles 1 on the aligning conveyor 20 are put together by a backward pusher 40 and are slid and moved on the movable table 30. At the upper side tip part on the side opposite to the aligning conveyor 20 of the movable table 30, a forward stopper 42 is provided. In the side surface part, a side surface stopper 52 is provided. At the other upper side side end of the movable table 30, a side surface pusher 50 is provided. In the lower part of the movable table 30, an elevating/lowering lifter 60 elevating/lowering an elevating/lowering table 61 on which a pallet 2 is placed is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a method and an apparatus for vertically and horizontally aligning and stacking articles, such as boxes and rolls, on a pallet.

[0002]

2. Description of the Related Art As a device for stacking box-shaped articles such as rectangular parallelepipeds and roll-shaped articles vertically and horizontally on a pallet, various kinds of conventional apparatuses such as loading articles conveyed one by one on a pallet by a robot or the like are known. Devices are known.

For example, Japanese Patent Application Laid-Open No. Hei 8-165025 discloses an elevating tray which is provided on an elevating body so as to be movable horizontally, and which can be moved horizontally forward, backward, left and right below the elevating tray.
An apparatus for stacking articles on a pallet, comprising: a pallet table on which the pallets are placed; and control means for horizontally moving the pallets to position a predetermined position on the pallets directly below the articles stacked on the elevating tray. Is disclosed.

Japanese Patent Application Laid-Open No. 7-10275 discloses that
Transport means for sequentially transporting the seedling boxes used for the seedling raising, receiving means for receiving the seedling boxes transported by the transport means, discharge means for discharging the seedling boxes on the receiving means to the side, and The seedling box is provided with a placement portion on which any number of rows are placed in the horizontal direction, and the placement portion is stepwisely moved by a predetermined dimension in accordance with a predetermined number of discharge operations of each seedling box by the discharge means. There is disclosed a seedling box stacking apparatus having seedling box stacking accommodation means for lowering the seedling box and storing a number of seedling boxes in an arbitrary number in a horizontal direction and in multiple stages in a vertical direction in a stacked state.

[0005]

Problems to be Solved by the Invention
The article stacking apparatus described in Japanese Patent Application Publication No. 5 (1999) -2005 discloses an apparatus for stacking (sticking) required rectangular articles on an elevating tray and transferring the articles on a pallet. Transfers stacked goods so that goods can be stacked vertically and horizontally on the pallet. There is a problem that the stacked articles are not arranged in order to transfer the articles, and that a large space is required for moving the pallets vertically and horizontally.

In the stacking apparatus described in Japanese Patent Application Laid-Open No. 7-10275, seedling raising boxes are arranged in a line between gate shutters, and brackets supporting both ends of the seedling raising box are pivoted down by cylinders. It is a device that lowers the seedling box and stacks it on the seedling box below. It is good if the articles are arranged in one row, but it tries to stack the articles arranged in two dimensions vertically and horizontally. In such a case, there is a problem that the articles cannot be supported, and the articles must be rearranged once stacked in a row.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, that is, means for arranging boxes and rolls of articles on a pallet vertically and horizontally and stacking them on a pallet with a space-saving and simple device. And, after aligning the loaded articles vertically and horizontally, when stacking on a pallet, align the loaded articles vertically and horizontally on a table located above the pallet,
The articles on the table are transferred to the pallet by sliding only the table in the horizontal direction while the articles are pressed and fixed in four directions by the stopper and the pusher, and the pallet is lowered by the height of the articles after the transfer. Then, the table is returned and the next article is aligned and stacked.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the method of stacking of the present invention, a box-shaped body such as a cardboard box or a wound cylindrical article is vertically and horizontally aligned on a movable table located above a pallet. With the articles on the movable table pressed and fixed from all sides by the pusher, only the movable table is slid horizontally to transfer the articles on the movable table onto the pallet located directly below the movable table. After the transfer, the pallet is lowered by the height of the article, and then the movable table is returned to repeat the alignment and stacking of the next article.

The stacking device is a device for arranging loaded articles vertically and horizontally and then stacking the articles on a pallet. An aligning conveyor for arranging the loaded articles in a line, and a table slidably movable in a horizontal direction. And, a rear pusher for sliding the articles arranged on the alignment conveyor together on the table, a stopper provided at the upper end of the table and the upper end, and the other upper end of the table at the upper end An article alignment device comprising a side pusher provided;
An elevating device was provided to allow the pallet provided at the lower part of the table to move up and down.

A lower surface of the movable table and an upper surface of the pallet,
Or, it is very close to the upper surface of the article on the pallet, and the gap is very small.
After aligning the articles step by step vertically and horizontally, when the movable table is slid while the four sides of the article are locked with the pusher and the stopper, the pushing force of the pusher is not so large and it surrounds the article, so the article is It slides down as a step by almost the thickness of the table and is transferred onto a pallet located below or an article on the pallet.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a method for stacking articles according to the present invention;

As shown in FIGS. 1 to 3, an article stacking apparatus 3 according to the present invention includes an introduction conveyor 10 for cutting articles 1 to be continuously conveyed into a required number, and a predetermined number of articles 1 cut out. , A movable table 30 slidably movable in the horizontal direction, and a rear pusher 40 for collectively sliding the articles 1 on the alignment conveyor 20 onto the movable table 30. A front stopper 42 is provided at an upper end of the movable table 30 opposite to the alignment conveyor 20, a side stopper 52 is provided at the side end thereof, and a side pusher 50 is provided at the other upper end of the movable table 30. The lift table 61 on which the pallet 2 is mounted is provided with a lifting lifter 60 which can freely move up and down.

The introductory conveyor 10 has a transport roll 11 for transporting the articles 1, and sends out the articles 1 to be transported to the alignment conveyor 20. A fixed stopper 13 for forcibly stopping the article 1 to be conveyed is provided at the tip of the introduction conveyor 10, and a cutout for cutting out a part of the article 1 continuously conveyed in the middle of the row of the conveyance rolls 11. A stopper 12 is provided, and the cut-out stopper 12 is raised and lowered by a cylinder (not shown), and is a retractable type.
Usually, it is set at a position lower than the uppermost end of the transport roll 11 and rises only when necessary. A horizontal feed chain 15 is provided between the cut-out stopper 12 and the fixed stopper 13, and the horizontal feed chain 15 transfers the articles 1 stopped by the fixed stopper 13 to the alignment conveyor 20. It is located at a position lower than the uppermost end of the roll 11 and is raised by a cylinder (not shown) or the like only when the article 1 is transported sideways.

The alignment conveyor 20 is composed of a plurality of transport rolls 21, and a fixed stopper 22 for forcibly stopping the article 1 is provided at a leading end thereof. Further, the rear pusher 40 attaches a rear cylinder 41 to a pusher support frame 44, and a cylinder rod 46 of the cylinder 41.
A pressing plate 43 for moving the article 1 on the alignment conveyor 20 is detachably attached to a tip of the alignment conveyor 20, and the pressing plate 43 is located at an upper portion of one side surface of the alignment conveyor 20,
The articles 1 on the alignment conveyor 20 can be pushed out to the opposite side, and can be slid on the movable table 30. Guides 45, 45 are provided on both sides of the rear cylinder 41 in parallel with the axial direction of the rear cylinder 41 so that the rear cylinder 41 can smoothly advance and retreat.

Further, the movable table 30 is adapted to move integrally with the alignment conveyor 20, and the upper surface of the movable table 30 and the transport rolls 2 of the alignment conveyor 20 are moved.
The top of 1 is almost the same height. The movable table 30 and the aligning conveyer 20 move in parallel between the upper part of the pallet 2 where the pallet 2 is placed and the lower part of the rear pusher 40 in parallel with the introduction conveyer 10. Rotation is performed by pulling and sliding the movable table 30 via a chain or a wire. The movable table 30 can be smoothly moved by a pair of LM guides 31 and 31 mounted on a mount 62 ′ below the rear pusher 40, and the movable table 30 is mounted on the mount 62 by auxiliary wheels 32 mounted on both ends of the movable table 30 on the distal end side. On the rail 33.

The side pusher 50 is provided on the movable table 3.
The plate 53 attached to the end of the rod of the side cylinder 51 attached to the gantry 62 at one side end on the movable table 30 is moved forward and backward on the movable table 30 so that the article 1 on the movable table 30 is The movable table 30 is separated from the movable table 30 by being clamped by the side stopper 52.

The front stopper 42 is located near the upper end of the movable table 30 as shown in FIG.
And is detachably attached to the movable table 30 by a mounting member fixed to the movable table 30.

The side stopper 52 is provided on the movable table 3.
0, and is a plate-shaped member attached to a mount 62 similarly to the front stopper 42, and is separated from the movable table 30.

The elevating lifter 60 is located in a gantry 62 and is driven by a cylinder or a motor to move the elevating table 6.
The flat pallet 2 is loaded on the lifting table 61 and can be stopped by one pitch according to the height of the articles 1 to be loaded by the setting of the control device 70.

The operation of the present invention will be described below.
When an article 1 such as cheese in which a yarn such as a fiber is wound into a cylindrical roll shape is conveyed on the conveyance roll 11 of the introduction conveyor 10 and forcibly stopped by a fixed stopper 13 provided at the tip of the introduction conveyor 10, The horizontal feed chain 15 provided near the fixed stopper 13 is raised by a cylinder (not shown) provided below the horizontal feed chain 15, and the article 1 is sent out to the alignment conveyor 20 by the horizontal feed chain 15. When the article 1 is carried on the traversing chain 15,
Cut-out stopper 12 provided in the middle of the introduction conveyor 10
Is lifted by a cylinder (not shown) to stop the following articles 1 from being carried in. When the articles 1 are sent out to the alignment conveyor 20 by the traversing chain 15 and become empty and the traversing chain 15 is lowered, the cut-out stopper 12 is lowered.

The articles 1 conveyed into the alignment conveyor 20 are stopped by a fixed stopper 22 provided at the front end, and the conveying roll 21 is stopped by a sensor (not shown). When a predetermined number of articles 1 are successively conveyed, the articles 1 are introduced. The horizontal feed chain 15 of the conveyor 10 is stopped to stop sending the articles 1 to the alignment conveyor 20, and the articles 1 arranged in one row are collectively slid on the movable table 30 by the plate 43 of the rear pusher 40. The article 1 is pressed until the article 1 comes into contact with the front stopper 42 provided near the tip of the movable table 30. Further, the article 1 on the movable table 30 is pressed and aligned from four sides by the combination of the side stopper 52 provided near the side surface on the movable table 30 and the side pusher 50 provided on the other opposite side.

In this way, the articles 1 aligned on the alignment conveyor 20 are successively moved onto the movable table 30, and the front stopper 42, the rear pusher 40, the side stopper 52 provided at one end of the side, and the other end The article 1 on the movable table 30 is pinched and pressed from all sides by the side pusher 50 provided on the side, and the front stopper 4 is placed on the movable table 30.
The articles 1 are aligned one by one from two sides.

The rear pusher 40 and the side pusher 5 are arranged in a predetermined number on the movable table 30 vertically and horizontally.
0 protrudes and holds the article 1 while the movable table 30
When the object 1 is slid to the lower position of the rear pusher 40 together with the alignment conveyor 20, the article 1 on the movable table 30 approaches just below the movable table 30 by its own weight because the pushing force of the pusher is not so large and surrounds the article 1. Is transferred onto the pallet 2 provided.

When the articles 1 are transferred onto the pallet 2, the elevation table 61 of the elevation lifter 60 is lowered by the height of the articles 1 preset in the control devices 70 and 70 ', and the The upper end surface is located slightly below the lower surface of the movable table 30, and the movable table 30 returns to the position above the pallet 2 for loading the next article 1.

The elevating table 6 on which the pallet 2 is placed
Reference numeral 1 denotes a vertically movable lifter which can be moved up and down by a lifter 60. The upper surface of the pallet 2 (the upper end surface when the article 1 is placed on the pallet 2) is substantially close to the lower surface of the movable table 30. To stop.

Pallet 2 of article 1 on movable table 30
The transfer to the top is repeatedly performed, and the stacking device 3 is temporarily stopped by loading the articles 1 of the predetermined number of levels, and the loaded pallets 2
Is replaced with an empty pallet and the process is continued.

As described above, according to the present invention, the alignment conveyor 2
Since the top of the transfer roll 21 and the upper surface of the movable table 30 are almost the same, the transfer from the alignment conveyor 20 to the movable table 30 is smooth, and the transfer from the movable table 30 to the pallet 2 has a step. The movable table 30 is about the thickness of the movable table 30, and the stoppers 42 and 52 and the pressing plate 4 of the pusher
Since the movable table 30 is slid while being surrounded by 3, 53, the articles 1 can be smoothly transferred and can be stacked on the pallet 2 without any load shift.

The articles 1 stacked in this way are shown in FIG.
As shown in FIG. Although the preferred embodiment has been described above, the present invention is not limited to this, and various applications can be considered.

The plate 43 and the front stopper 42 of the rear pusher 40 are detachable, and those having different sizes may be prepared according to changes in the size and number of articles 1 to be loaded, or the length can be freely adjusted. In this case, it is easier to deal with changes in the size and number of the articles 1.

Rear cylinder 4 used in the embodiment of the present invention
1. The cylinder such as the side cylinder 51 can be replaced with a motor, and the motor can be replaced with a cylinder.

The article 1 can be applied not only to cheese or the like in which fibers such as fibers are wound in a cylindrical roll shape, but also to a box-shaped body such as a cardboard box or a wooden box.

[0032]

According to the present invention, a box-shaped or roll-shaped article 1 is vertically and horizontally aligned on a slidable table, and then the table is slid and placed under the table so as to be movable up and down. Since the articles 1 are stacked on top of each other, there is no displacement of the articles 1 after the stacking, and the articles 1 can be stacked vertically and horizontally on the pallet. And the loading and unloading process can be automated and labor-saving, and productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a stacking device according to the present invention.

FIG. 2 is a plan view of the stacking device of the present invention.

FIG. 3 is a side view of the stacking device of the present invention.

FIG. 4 is a perspective view of articles stacked according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Article 2 Pallet 3 Stacking device 10 Introductory conveyor 11 Transport roll 12 Stopper 13 Fixed stopper 15 Horizontal feed chain 20 Alignment conveyor 21 Transport roll 22 Fixed stopper 30 Movable table 31 LM guide 33 Rail 34 Drive motor 40 Rear pusher 41 Rear cylinder 42 Front stopper 43 Press plate 50 Side pusher 51 Side cylinder 52 Side stopper 53 Side press plate 60 Elevating lifter 61 Elevating table 62, 62 'Mount 70, 70' Control device

Claims (3)

[Claims] In a method of vertically and horizontally arranging articles carried in and vertically stacking them on a pallet, the articles carried are arranged vertically and horizontally on a table located above the pallet, and the articles are arranged by stoppers and pushers. With the table pressed and fixed in four directions, only the table is slid in the horizontal direction to transfer the articles on the table onto the pallet.After the transfer, the pallet is lowered by the height of the article, and then the table is returned. A method of stacking articles, wherein the next article is arranged and stacked. 2. The method according to claim 1, wherein the article has a box shape or a wound cylindrical shape. 3. An apparatus for arranging loaded articles vertically and horizontally and stacking them on a pallet. An apparatus for arranging the loaded articles in a line, a table slidably movable in a horizontal direction, and A rear pusher that slides the items arranged on the table together on the table,
An article aligning device comprising an upper end of the table and a stopper provided at the upper end, a side pusher provided at the other upper end of the table, and a pallet provided at the lower part of the table can be moved up and down. An article stacking device, comprising a lifting device.