JPS5837221B2 - palletizer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a palletizer that loads and delivers a predetermined number of articles, such as cases containing bottles and cans of soft drinks, etc., onto a pallet (loading plate) in several stages.

This invention is particularly applicable to patent application No. 54-141309 (Sho 54-141309) filed by one of the applicants (Morishita Kikai Seisakusho Co., Ltd.) and the same applicant.
JP-A No. 56-65721 (name of invention: palletizer)
The purpose of this project is to improve the methods of holding goods and increase the capacity of the people.

The above-mentioned Japanese Patent Application No. 54-141309 doubles the processing capacity of the conventional palletizer by giving the article holding device the ability to transport the article. However, in the present invention, the holding device is changed to handle the shape and size of the article. It is an object of the present invention to provide a palletizer which can be pinched without any trouble even if there is some error in the palletizer, and which has a further increased throughput by changing the method of conveying the articles of the clamping device.

Next, embodiments of the present invention will be described based on the drawings.

In accordance with the present invention, the article carrying-in conveyor 1 has a frame structure (h
One set is connected to each side of (using) 2.

This is to increase the quantity of goods brought in.

The articles 3 carried by the carry-in conveyor 1 are transferred to transfer rollers 4 installed on the seven sides of the frame, move forward, come into contact with stoppers 5, and wait to be clamped by article supporting devices ab.

The article holding device ab consists of a pressing side unit a and a pressure receiving unit b, and the pressing side unit a has a plurality of rubber holding pieces 6 each attached to the tip of a piston rod (three pieces in this embodiment). Air cylinders 7 (in this embodiment, 2 groups of 10) are arranged side by side and attached to the saddle 8, and the pressure receiving unit }b is made up of a large number of rubber support pieces 6 arranged in 2 rows.
Each group is attached to a saddle 8, and two hydraulic cylinders 9 are connected to each group.

Both units (a and b) have running rollers 10 inside the saddle 8 and run back and forth on rails 11 laid along the upper side of the structure, but this running is driven alternately by two motors 12. It is pulled by a chain 13 and carried out in the manner described later.

A stopper 5 which can be raised and lowered is installed at the end point near the center of the transfer rollers 4 on both sides, and an opening 15 having an area corresponding to the pallet 14 is formed between the two stoppers.

The article holding device ab has a length a little more than 1502 times the opening 150, and performs intermittent reciprocating motion so that the front and rear portions alternately align with the opening 15.

The operation of the present invention will be explained below according to the movement of the article.

When the number of articles 3 that have progressed on the transfer roller 4 and come into contact with the stopper 5 reaches a predetermined number, the phototube device sends a signal to turn the rear half of the supporting device ab into the "closed" state, that is, the suppressing unit When the rubber supporting pieces 6 attached to the air cylinder 7 of the relevant part are moved forward all at once, the rubber holding pieces 6 of the pressure receiving unit b in the corresponding position
The article 3 is held between the group.

The clamping piece 6 of the pressure-receiving unit b is moved forward a certain distance by a hydraulic cylinder 9 to position the article 3 to be clamped, but hydraulic pressure is used to avoid losing force to the air cylinder 7 on the pressing side. .

In the above case, the front half is at the opening 15 in the "open" state, that is, with the clamping pieces 6 on the pressing side and the pressure receiving side retracted, but then it moves forward by the drive of the chain 13 and holds the article. At the position where the clamped rear half matches the opening 15, the clamping device ab comes into contact with the stopper 16 and stops;
At the same time, it becomes the "open" state and is unloaded onto the article pallet 14.

The pallet 14 is the lifting table 1 of the pallet lifting device i17.
8 and has been raised to the position of the opening 15.

When this unloading is completed, the clamping device ab clamps the article on that side with its front half, travels in the opposite direction, and returns above the opening 15.

In the meantime, the pallet 14 is lowered one step and the next group of articles is stacked on top of the already stacked preceding group of articles.

When a predetermined number of articles have been loaded, the pallet 14 is lowered onto the pallet conveyor 19 and carried outside via the conveyor.

The features of the present invention reside in the clamping operation of the clamping device 1ta'b and the article conveying operation.

That is, since the pressing side unit a is composed of a large number of air cylinders 7, the rubber clamping pieces 6 attached to each cylinder press the article independently of those of the other cylinders. Even if some misalignment occurs in the group of articles, they can be pressed and clamped without any problem.

While one-half of the holding device is loading and unloading the goods, the other half is doing the work of holding the goods, and both jobs are switched instantly, saving time. There is no waste and the amount of processing can be significantly increased.

[Brief explanation of drawings]

Fig. 1 is a plan view of the present invention, Fig. 2 is a front view, and Fig. 3 is a
FIG. ab is the article holding device, a is the pressing side unit, b is the pressure receiving side unit, 1 is the carry-in conveyor, 2 is the frame (house
g), 3 is an article such as a case storing bottles and cans, 4 is a transfer roller, 5 is a stopper, 6 is a rubber holding piece, 7 is an air cylinder, 8 is a saddle, 9 is a hydraulic cylinder, 10 is a travel 11 is a rail, 12 is a motor,
13 is a chain, 14 is a pallet (loading plate), 15 is an opening, 16 is a stopper, 17 is a pallet lifting device, 18 is a lifting table, and 19 is a pallet conveyor.

Claims (1)

[Claims] 1. A predetermined number of articles carried onto the structure by the carry-in conveyor are carried above the pallet lifting device in the structure by a clamping device, and the articles are stacked on a pallet placed on the lifting table of the lifting device, and then carried by the pallet conveyor. In order to carry out the palletizer, there are two conveyor conveyors attached to both sides of the frame, a suppression side unit consisting of two groups of air cylinders equipped with rubber holding pieces, and a large number of rubber supporting parts. Attach the pieces to 2 groups in 1 row, and 2 pieces per group.
1. A palletizer characterized by having a certain clamping device from a pressure-receiving unit equipped with two hydraulic cylinders, and a traction mechanism 1 for reciprocating the clamping device from side to side centering on the position of the elevating table.