JPS582140B2 - How to load a pallet loader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pallet loader stacking method that suppresses the occurrence of falling noise of stacked articles and improves the stacking capacity.

Generally, in a pallet loader, after arranging the required number of articles that are continuously or intermittently supplied for one stage to be palletized, they are transferred onto a single strip plate positioned above the pallet that moves up and down. By pulling out the strip plate with the articles on the plate stopped, the articles fall onto the pallet or the articles stacked on the pallet, and this process is repeated to achieve the desired stacking.

However, in order to improve production capacity, it is desirable to pull out and return the strip plates instantly, but there are limits to speed-up due to the shape retention of the aligned articles, noise generation, etc.

In particular, the noise is significant and is a cause of pollution.

The inventor of the present invention aims to improve the loading capacity by adjusting the feeding speed of the articles arranged on the strip plate to be within the allowable range of noise generation, and by eliminating falling noise without disturbing the stacking form of the stacked articles. In order to improve this, it is attempted to stack two or three or more pallets at the same time.

The present invention will be explained below based on examples.

In the figure, 1 is an inlet conveyor that sequentially carries articles to be stacked simultaneously onto a pallet in which two or more sheets are connected in series into a pallet loader in one row or two or more rows in parallel to the required number of rows. A predetermined number of articles carried on an inlet conveyor 1 to be piled up in one stage are arranged and temporarily stocked on the terminal end of the inlet conveyor.

In order to align and stock articles on this inlet conveyor 1, a stopper 2 is provided between the carry-in section and the stock section 1a of the conveyor, and is movable up and down from between the rollers of the conveyor.
Set up and do it.

The stopper 2 protruding from between the rollers of this inlet conveyor is brought into contact with the first article being transferred on the inlet conveyor, and the necessary number of articles necessary for stacking on multiple pallets at the same time is transferred to the inlet conveyor. When it is supplied onto the stock section 1a of the inlet conveyor, is it further supplied to the stock section side of the inlet conveyor? Make sure that items are not brought in.

A strip plate 3 is provided adjacent to the first tip of the inlet conveyor, and a rotary stopper 4 is provided between the strip plate and the inlet conveyor 1.

The strip plates 3 face each other and are supported by the main body frame F of the pallet loader in a horizontal direction so as to be able to approach and separate from each other. , link 6 is provided, and by the operation of each cylinder,
Although both opposing strip plates are moved away from each other or toward each other and slid at the same time, it is also possible to use other methods instead of the cylinders and links.

The strip plates 3, 3 are arranged in a required number and have a length that can support all the articles carried onto the plates, and a width of 1/2 or less of the width W in the direction perpendicular to the direction of movement of one article. It has a width, preferably a minimum width that allows all the articles aligned by the opposing strip plates 3, 3 to be reliably supported without being deformed or falling.

Additionally, guides 7, 7 are attached to the main body frame F to regulate the positions of the two opposing sides of the article carried in above the strip plate, to clamp the article when the strip plate is pulled out, and to prevent it from falling. Provided for.

These opposing guides 7 are movable by cylinders 7a etc. fixed to the frame F, and temporarily strongly clamp the articles on the strip plate from the two opposing sides, and the strip plates retreat from the bottom of the aligned articles. The object is held so that it does not fall even when the object is in use.

Further, a fixed stopper 8 is provided on the main body frame F so that the front and rearward shaping of the article with respect to the carrying-in direction comes into contact with the front surface of the first article to be carried in.

The push plate 8a of this fixed stopper 8 is designed to push the front surfaces of all the articles in parallel at the same time, and there is also a rotary stopper 4 on the article loading side facing the fixed stopper 8.
is provided on the main body frame F, and the rotary stopper 4 is rotated from the horizontal standby position to transfer the articles pushed out from the inlet conveyor onto the strip plate via the extrusion device 9 to the end of the rearmost row of the aligned articles. Press to move the whole article so that the leading group hits the fixed stopper.

At this time, the fixed stopper and the rotary stopper work together to ensure that the article is shaped in the direction in which it is carried in.

A pallet conveyor 10 is provided at a position below the above-mentioned stop IJ top plate so as to move up and down with a stroke slightly longer than the maximum number of stacking stages.

In the illustrated embodiment in which a plurality of pallets are loaded at the same time, this pallet conveyor 10 is designed to be able to place two pallets in a line, and to feed the pallets in the serial direction. A lifter 11 is provided at the bottom.

A pallet supply conveyor 13 adjacent to this elevating pallet conveyor 10 simultaneously supplies one or more pallets P from the pallet magazine 12 to the pallet conveyor.
At the same time, a loaded conveyor 14 is provided on the opposite side of the pallet supply conveyor 13, that is, on the other side so as to sandwich the pallet conveyor, and at the lowest position of the pallet conveyor, the three conveyors are on the same plane. It supplies the pallet conveyor to the pallet conveyor and sends the actual hallet to the loaded conveyor side.

In the pallet loader configured as described above, the articles arranged in one stage to be simultaneously stacked on two pallets are pushed out by the extrusion device 9 onto the opposing strip plates from the inlet conveyor, and the articles at the leading end are fixed. The leading end is positioned by coming into contact with the stopper S, and the rear end side of the article is pushed by the rotation of the rotary stopper 4, and the fixed stopper and the rotary stopper shape the article in the extrusion direction, that is, the longitudinal direction.

At the same time, guides 7, 7 facing each other in a direction perpendicular to the article extrusion direction are pushed out to shape the article in the lateral direction, and all the articles on the strip plate are held between the guides 7, 7.

A lifter 11 which is held between these two guides and then pulled out by a cylinder or other driving device and is kept on standby at a position below the strip plate.
by raising the top of the pallet on the pallet conveyor or the topmost article stacked on the pallet first to contact the bottom surface of the article held above the strip plate, or slightly lowering the held article. The strip plate is lifted up to its maximum height, thereby preventing the stowed articles from falling, thereby ensuring that the strip plate is pulled out and stowed simultaneously, while also eliminating noise caused by falling articles.

Then, when the loading is completed, the sliding lid is lowered by one stage of article loading, the pallet conveyor is placed in a standby position, the strip plate is returned to its original state, and the plurality of articles lined up on the plate are supplied again. It is something that forces you to do something.

This operation is repeated in sequence to complete the desired loading.

Various methods can be used for the extrusion device that simultaneously extrudes a plurality of articles onto the strip plate from the above-mentioned inlet conveyor, but one example is one arranged on both sides of the inlet conveyor as shown in An extrusion bar 9b is integrally provided between two endless chains 9a, and when this chain is driven, the extrusion bar pushes the end of the last row of articles.

Therefore, according to the present invention, articles are stacked one stage at a time on a plurality of pallets arranged in series, and after supporting and holding the articles supplied on the slip plate, the plate is pulled out and the pallet is removed. As the lift lifts up, the items are delivered and piled up slightly from the bottom, so the speed at which the items are fed onto the strip plate is reduced.
Even if the lifting speed of the lift is within the permissible range for noise generation, the stacking capacity can be at least twice that of the conventional method, and since articles do not fall, there is an advantage that falling noise can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a front view, FIG. 2 is a plan view, and FIG. 3 is a side view. 1...Inlet conveyor, 2...Stopper, 3...
Strip plate, 4...Rotary stopper, 5
...Cylinder, 6...Link, 7...Guide, 8...
Fixed stopper, 9...Extrusion device, 10...Pallet conveyor, 11...Lifter, 12...Pallet magazine, 13...Pallet supply conveyor, 14...Loaded conveyor, P...Pallet.

Claims (1)

[Claims] 1. Items that are to be stacked simultaneously on multiple pallets in series are arranged on a strip plate that can be opened and closed by sliding, and the items are shaped in the loading direction and in the lateral direction. and holding the article to the extent that it does not fall from both sides in the article supply direction,
At the same time as the strip plate is pulled out, the pallet on the pallet conveyor, which is waiting at a position one stage below the article, is temporarily raised to just below the strip plate, the article grip is released, and the article is palletized or stacked from above the plate. After the product is transferred onto the product, the lifter is lowered one more step to stop and wait at the standby position, and this is repeated in sequence, causing the noise of the product falling onto multiple pallets placed on the pallet conveyor. A method for loading a pallet loader, characterized in that stacking is carried out simultaneously without any problems.