JPS63202261A - Stagnating device for metallic can - Google Patents

Abstract

PURPOSE:To obtain a simple structure without any movable part, by transferring or temporarily stagnating metallic cans by the effect of a traveling magnetic field. CONSTITUTION:When 3-phase alternating current is supplied to the X-direction winding and the Y-direction winding of a 2-direction traveling magnetic field generating device 20, a traveling magnetic field is generated and a thrust is applied on an aluminum can 2. According to the thrust, the aluminum can 2 is moved from a receiving port 11 to a discharging port 13. When the disposal capacity of a disposer 6 is deteriorated temporarily and the conveying speed of a conveyer 14 is reduced, aluminum cans 2 are stagnated in the vicinity of the discharging port 13 of a box body 10. When the conveying speed of the conveyer 14 is restored, the number of stagnating aluminum cans 2 is decreased gradually.

Description

Detailed Description of the Invention "Industrial Application Field" The present invention is provided in a transport device for transporting, for example, a lightweight metal can made of non-magnetic conductor such as aluminum or copper. The present invention relates to a retention device for metal cans that has a function of temporarily retaining metal cans.

"Prior Art" Generally, in manufacturing equipment for metal cans such as aluminum cans, a belt conveyor is used as a device for transporting metal cans during the manufacturing process. For example, FIG. 4 is a diagram showing an example of a conventional aluminum can conveying device, and as shown in this figure, the processing device at the front stage! The aluminum cans 2 discharged from the belt conveyor 3.4.5 are arranged in tandem.
Accordingly, the data are sequentially transferred to the next stage processing device 6. Furthermore, a retention section 7 for temporarily retaining the aluminum cans 2 is provided on the side of the belt conveyor 4. This retention section 7 is also called a storage section, and is composed of a plurality of belt conveyors 8a to 8f and a side wall 9. Then, the processing capacity of the next-stage processing device 6 temporarily decreases, and the number of aluminum cans 2 per unit time that this processing device 6 can accept decreases. When the number of aluminum cans 2 becomes smaller than the number, the transfer speed of the belt conveyor 5 is lowered, and the surplus aluminum cans 2 are temporarily retained in the retention section 7.

[Problems to be Solved by the Invention] By the way, the retention section 7 of the conventional aluminum can conveying device described above is constructed by combining a plurality of belt conveyors 8a to 8f, and therefore is mechanically complicated and complicated. The structure has many moving parts, and the constant friction between the bottom of the aluminum can 2 and the belt causes belt breakage, and the belt feeding sprocket wears out, so maintenance work must be performed quite frequently. There is,
There was a problem that the maintenance work was complicated.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a retention device for metal cans that has a simple structure without any moving parts and does not require any maintenance work.

"Means for Solving the Problem" The present invention provides a retention device that temporarily retains metal cans and the like transferred by a first transfer means and then sends them to a second transfer means. a box body having a receiving port for receiving metal cans transferred by the means and a discharge port for sending out the metal cans to the second transfer means, and storing a required number of the metal cans; The apparatus is characterized in that it includes a traveling magnetic field generating means that is provided under the bottom plate and generates a magnetic flux that moves in the direction from the receiving port to the discharge port.

``Operation'' A traveling magnetic field generating means installed under the bottom plate of a box that stores a required number of metal cans generates a magnetic flux that moves from the receiving port toward the discharge port, that is, a traveling magnetic field, and this traveling magnetic field The metal cans received at the receiving port are transferred to the discharge port and are discharged either directly from the discharge port or after being temporarily retained near the discharge port.This allows for a simple structure with no moving parts. It can be done.

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing the configuration of an embodiment of the present invention. In this figure, 10 is a box with an open top, and has a square bottom plate 10a and a side plate tob.

It is composed of 10c, 10d, and 10e. Between the side plate 10b and lOc of this box lO, that is, the bottom plate 10
A receiving opening 11 wider than the diameter of the aluminum can 2 is formed at one of the four corners of the aluminum can 2.

A conveying device I2 such as a belt conveyor is connected to this receiving port 11, and the aluminum cans 2 discharged from the preceding processing device I are sequentially conveyed in an upright state by this conveying device 12. It has become. Further, a discharge port 13 wider than the diameter of the aluminum can 2 is formed at one of the four corners of the bottom plate 10a located between the side plate 10d and IOe, that is, diagonally from the receiving port 11.

A conveyance device 14 such as a belt conveyor is connected to the discharge port 13, and the conveyance device 14 sequentially transports the aluminum cans 2 discharged from the discharge port 13 to the next processing device 6 in an upright state. It is now being supplied. Below the bottom plate 10a of the box lO, there is a
A bidirectional traveling magnetic field generating device 20 as shown in (a) and (b) is provided. This two-way magnetic field generator 20 includes an upper core 21 and a lower core 22 that form a grid-like slot, an X-direction winding 23 that is placed in the slot and generates a magnetic field traveling in the X-axis direction, and and a Y-direction winding 24 that generates a traveling magnetic field. In this case, the X-direction winding 23 and the Y-direction winding 24 are arranged to be perpendicular to each other within the slot, and within the slot,
The X-direction winding 23 is located in the upper layer, and the Y-direction winding 24 is located in the lower layer. Further, both the upper iron core 21 and the lower iron core 22 are constructed by laminating electric iron plates, and the lamination direction of the upper iron core 21 is parallel to the X-axis, and the lamination direction of the lower iron core 22 is parallel to the Y-axis.

In such a configuration, the bidirectional traveling magnetic field generator 20
When three-phase alternating current is supplied to the X-direction winding 23 and the Y-direction winding 24 of A traveling magnetic field is generated, and these are combined to generate a traveling magnetic field that moves in the direction of arrow 1g. As a result, as shown in FIG. 1, the aluminum can 2 present on the top surface of the bottom plate 10a of the box body 10 is subjected to a thrust force in the same direction as the arrow 1g direction, that is, in the direction from the receiving port 11 to the discharge port 13. As a result, the aluminum can 2 located approximately in the middle of the bottom plate 10a moves in the direction of the arrow Mg, which is the same direction as the arrow Tg, and the aluminum can 2 in contact with the side plate lOe moves along the side plate toe. The aluminum can 2, which is in contact with the side plate 10d, moves in the direction of the arrow My force along the side plate 10d. After all, the aluminum can 2 always moves toward the outlet 13 regardless of its position. In this case, the aluminum can 2 moves extremely smoothly in a slightly floating state due to the action of the traveling magnetic field.

Here, if the processing capacity of the next-stage processing device 6 temporarily decreases and the transfer speed of the conveying device 14 decreases, the number of aluminum cans 2 discharged from the discharge port 13 will be reduced by the amount of aluminum received at the receiving port 11. The number of aluminum cans 2 is smaller than the number of cans 2, and the surplus aluminum cans 2 accumulate near the outlet 13 in the box IO.

Thereafter, the number of aluminum cans 2 staying near the discharge port 13 increases, but when the transfer speed of the conveying device 14 returns to the original speed, the number of aluminum cans 2 staying near the discharge port 13 gradually decreases.

According to the embodiment described above, the aluminum can 2 moves in a slightly levitated state due to the action of the traveling magnetic field, so that the belt and the bottom surface of the aluminum can 2 do not rub against each other as in the case of conveyance using a conventional belt conveyor. Almost none,
Therefore, there is no fear of minute scratches on the bottom side of the aluminum can 2, and very good results can be obtained in terms of quality control.

In the embodiment described above, a belt conveyor or the like is used as the conveying devices 12 and 14, but as shown in FIG. Of course, the primary stator of a linear induction motor may be arranged along the conveyance path to convey the aluminum cans 2. Further, in the above embodiment, the aluminum can 2 was used as an example of the object to be transported, but it may also be a copper can or the like. But it doesn't matter. Furthermore, the shape of the bottom plate 10a of the box body 10 is not limited to a square, but may be a rectangle, a parallelogram, or the like.

"Effects of the Invention" As explained above, according to the present invention, a traveling magnetic field generating means is provided under the bottom surface of a box for storing a required number of metal cans,
The traveling magnetic field generating means generates a magnetic flux that moves from the receiving port toward the discharge port, that is, a traveling magnetic field, and by the action of this traveling magnetic field, the metal cans received at the receiving port are transported to the discharge port. By discharging directly from the discharge port or after temporarily retaining it near the discharge port, it is possible to have a simple structure with no moving parts, which has the effect of greatly simplifying maintenance work. It will be done.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the overall configuration of an embodiment of the present invention;
2(a) and 2(b) are a plan view and a partially cutaway side view showing the configuration of the bidirectional traveling magnetic field generator 20 applied to the same embodiment, and FIG. 3 is a primary view of a general linear induction motor. FIG. 4 is a perspective view showing the structure of a side stator, and FIG. 4 is a plan view showing the structure of a conventional belt conveyor type conveyance device. 2...Aluminum can, 10...Box body, 10a...Bottom plate, 10b=IOe...
・Side plate, 11... Receiving port, 12... Conveying device (first transfer means), 13... Discharge port, 1
4... Conveyance device (second transfer means), 20...
...Two-way traveling magnetic field generator (travelling magnetic field generating means)
.

Claims (1)

[Claims] A retention device that temporarily retains the metal cans transferred by the first transfer means and then sends them to the second transfer means includes a receiving port for receiving the metal cans transferred by the first transfer means; a box for storing a required number of the metal cans, the box having a discharge port for sending the metal cans to the second transfer means; and a box provided under the bottom plate of the box in the direction from the receiving port to the discharge port. A retaining device for metal cans, comprising a traveling magnetic field generating means for generating a magnetic flux that moves to a metal can.