JPS6210256Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an article transfer device that continuously transfers articles by delivering them between two conveyors, and particularly to an article transfer device suitable for use in an unscrambler or the like.

2. Description of the Related Art Conventionally, there has been known an article transfer device used in an unscrambler or the like, which is composed of an article conveyance device that conveys articles one by one, and a chute that receives the conveyed articles and guides them to fall. In such an article transfer device,
If the chute on the side to which goods are supplied is full and more goods are thrown in from the goods conveying device, there is a risk that the goods will become jammed in the chute, so a limit switch is provided at the upper end of the chute. When the chute is full, the chute detects the objects staying at the top and stops the object conveyance device to prevent objects from clogging in the chute.

However, the conveyance device that supplies the goods does not always convey the goods continuously;
There may be a gap between one item and a subsequent item. In such a case, if the conveyance device is immediately stopped because the chute becomes full, the articles may not reach the downstream end of the conveyance device. Then, the next time the transport device starts,
This method has the disadvantage that a waiting time is required before subsequent articles are placed into the chute, resulting in poor transfer efficiency.

The present invention has been made in order to eliminate such drawbacks, and includes an article conveying device that conveys articles and a chute that guides articles supplied from the article conveying device. a first article detection member disposed at a downstream end of the article conveyance device to sense an article passing through the chute; and a first article detection member disposed at a downstream end of the article conveyance device to sense an article passing through the downstream end. A second article detection member is provided, and when the inside of the chute is full of articles, the first article detection member continuously senses the articles staying at the upper end of the chute, and When the second article detection member senses the article conveyed to the end, the article conveyance device is stopped so that the subsequent article can be thrown into the chute at the same time as the stopped article conveyance device is started next time. The purpose of the present invention is to provide an article transfer device that provides the following advantages.

Hereinafter, the present invention will be explained based on an illustrated embodiment. In FIG. 1, 1 is a hopper for storing a large number of containers A, and 2 is a container conveying device installed obliquely at the bottom of this hopper 1. The conveying device 2 has shafts 3, 4, and 5 rotatably supported at the upper and lower ends.
and multiple pulleys 6, 7 attached to each shaft.
and 8, a belt 9 stretched around each of the pulleys 6, 7, and 8, and further container pushing members 10 attached to each belt 9 at predetermined intervals. Furthermore, guides 11 for guiding the side surfaces of the container A are provided on both sides of each of the belts 9. Therefore, the container A supplied from the hopper 1
One container is stored between the container pushing members 10 attached to each of the belts 9, and is pushed by these pushing members 10 and conveyed above the container conveying device 2.

A chute 12 is connected to the downstream end of the container transport device 2 for guiding the container A transported by the container transport device 2 vertically downward. A container alignment device 14 for aligning the containers A in one direction is provided at the downstream end of the chute 12, and further below it is a downwardly curved discharge chute 1 for guiding the containers A aligned by the alignment device 14.
7 are installed. The lower opening of the discharge chute 17 faces the gap between the support wall 18a and the screw 18b, and a discharge conveyor 18c is disposed below this gap.
The container A is discharged by a container discharge device 18 comprising a screw 18b and a discharge conveyor 18c.

The container is transported by the container transport device 2 and thrown into the chute 12 from the top thereof.
Since the containers falling through the chute are a mixture of upright and inverted containers, the inverted containers are reversed by the container alignment device 14 provided below the chute. Arrange all containers in an upright position. As shown in FIGS. 2a and 2b, this container alignment device 14 includes a rod-shaped support member 15 that receives the containers A falling inside the chute 12, and a rod-shaped support member 15 that receives the containers A falling within the chute 12, and moves the containers received by the support member 15 to the upper side of the chute 12. It includes a container pushing member 14a that pushes out the container laterally through an opening 12a formed on the side surface. The distance between the support member 15 and the support surface 12b formed by extending the lower surface of the chute 12 is as follows:
By setting the interval to allow the neck a of the container A to pass through and come into contact with the shoulder b of the container, a recess 15a is formed in which only the neck a can be accommodated. Therefore, when container A falls in the chute 12 in an inverted state, the shoulder b of the container
When the container comes into contact with the support member 15, the container is stopped. On the other hand, when the container falls in an upright position, the container is stopped when the bottom surface of the container comes into contact with the support member 15. Further, the vertical distance between the openings 12a is set to be slightly larger than the length of the body c of the container A. The container pushing member 14a is attached to a rotating shaft 14b, so that the body c of the container A can be pushed out laterally by reciprocating rotation of the rotating shaft 14b.

Therefore, as shown in FIG. 2a, when the container A is received by the supporting member 15 in an inverted state and the neck portion a of the container A is housed in the recessed portion 15a, the container pushing member 14a is the container A
When pushed out laterally, the container has its neck a and shoulder b
It is rotated around a support member 15 that supports the stepped portion of the pipe, and is turned from this support member 15 to a discharge chute 17 disposed diagonally downward, with the bottom face facing the direction of travel, that is, inverted into an upright state. be dropped. On the other hand, when the container A is erected, the support member 15
When the container A is received by the container pushing member 14a, as shown in FIG.
When the neck a of the container A comes into contact with the support member 16 at the upper edge forming the opening 12a, the container A is rotated about the support member 16, so that the bottom surface of the container A contacts the support member 15. When the container is separated from the container A, it is dropped into the discharge chute 17 with its bottom facing the direction of travel, that is, without being turned over and in an erect state.
They are guided down and dropped into the gap between the support wall 18a and the screw 18b, and then moved laterally by the screw 18b and the discharge conveyor 14c to form a line and are discharged to the outside.

13 is a first limit switch disposed at the upper end of the chute 12 to sense the passage of the container A; 19 is a second limit switch disposed at the downstream end of the container conveying device 2; Like the first limit switch 13, it senses the passage of the container A being transported.

In this embodiment, when the first limit switch 13 continuously senses the container A staying in the chute 12 and the second limit switch 19 senses the container A to be transported, the container transport device 2 is activated. It is designed to be stopped.

In the container transfer device having such a configuration, the container A introduced from the container transfer device 2 is transferred to the chute 1.
When the container A is full, the first limit switch 13 continuously senses the container A staying at the top. During this time, when the second limit switch 19 senses the container A passing through the upper end of the container conveying device 2, a stop signal is issued at the moment of sensing, and the clutch (not shown) interposed between the shaft 3 and the pulley 6 is activated. ) is released from the pulley 6 to stop the container conveying device 12.

If the first limit switch 13 is
Even if the container A staying at the top of the container A is continuously detected, the second limit switch 19 will not operate unless the following container A is transported to the downstream end of the transport device 2 by the container pushing member 10. Therefore, the container conveying device 2 continues to convey the following containers A without stopping.

As described above, when the container transport device 2 stops, the container A is always located at the upper end, and when it starts again, the next container A is immediately transferred to the chute 12.
It can be inserted inside.

Therefore, the waiting time from restarting the container transport device 2 after it has been stopped until the container A is loaded into the chute 12 is completely eliminated, and the probability that the container transport device 2 stops is reduced, which in turn significantly reduces the container transfer efficiency. can be increased.

In the above embodiment, only one row of the article transfer device was described, but if applied to a transfer device that transfers articles in multiple rows, it is possible to stop and operate each row, and the entire device can be stopped and operated. Since they are not stopped at the same time, the transfer efficiency can be greatly improved.

As described above, according to the present invention, after stopping the article conveying device, articles can be loaded into the chute at the same time as the next startup, eliminating waiting time from startup to loading the articles, and efficiently transferring articles. .

[Brief explanation of the drawing]

FIG. 1 is a side view of an article transfer device according to an embodiment of the present invention, and FIGS. 2a and 2b are explanatory views showing different operating states of the container alignment device, respectively. 2...Article (container) transport device, 12...Chute, 13...First article detection member (limit switch), 19...Second article detection member (limit switch), A...Container.

Claims (1)

[Scope of utility model registration request] an article conveyance device that conveys an article; a chute that guides the article supplied from the article conveyance device; and a first article detection device that is disposed at the upper end of the chute and that senses an article passing through the chute. a member disposed at a downstream end of the article conveying device;
a second article detection member that senses articles passing through the downstream end; when the inside of the chute is full of articles, the first article detection member continues to detect articles staying at the upper end of the chute; An article transporting apparatus characterized in that the article transporting apparatus is stopped when a second article detecting member senses the article conveyed to a downstream end of the article conveying apparatus.