JPS6326356Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transfer device that transfers a large number of plate-shaped articles from one position to another position at the same time when transporting a large number of plate-shaped articles.

Generally, in a stamping factory, a large number of pressed plate-shaped articles, such as automobile doors, are stacked and stored on pallets. Each pallet is then transported to a car body factory, where the pallets are taken out one by one and supplied to the initial process such as the car body assembly line.

However, when taking out plate-shaped articles one by one directly from a pallet and supplying (transferring) them to a work line such as assembly, the plate-shaped articles are transferred one by one and the last one is transferred. It is necessary that the pallet remain in this predetermined position until the end of the process. (For example, see Japanese Patent Publication No. 53-47968.) Therefore, the last one
It is necessary to exchange the pallet after a sheet is transferred until the next one is requested, but this empty pallet is returned to the supply position for plate-shaped articles, loaded with plate-shaped articles, and then returned to the above specified position again. If you try to return it to its original position, you will have to wait for the next task. Additionally, if you prepare multiple pallets containing plate-shaped items and replace them with empty pallets, you can avoid the above-mentioned waiting time, but of course it is necessary to prepare a large number of pallets. A large space is required, such as a space for maintenance work and a space for replacement work.

The present invention has been made in view of the above circumstances, and aims to provide a transfer device for plate-shaped articles that does not require waiting during the post-transfer process and requires less space. It is something.

The transfer device for plate-shaped articles of the present invention includes a frame body having a receiving section for a large number of plate-shaped articles stacked vertically at predetermined intervals on the lower side and an ejection section for the plate-shaped articles on the upper side; an elevating frame that is movably supported by a frame and surrounds a large number of plate-like articles from the outside and the side between the elevating frame and the elevating frame; a driving means that protrudes from the elevating frame and carries the plate-like articles; The plate-shaped article is rotatably supported on the elevating frame so as to be rotatable between a holding position where the plate-shaped article can be placed and an exit position that allows the plate-shaped article to pass freely, and is in a position where the plate-shaped article can be held from below in the holding position. A plurality of arms are disposed and are supported by the lifting frame so as to be slidable in the vertical direction, and when the lifting frame is lowered into the receiving part, the arms slide upward relative to the lifting frame, and this sliding causes the arms to move upwardly relative to the lifting frame. The arm is rotated to project the arms into the holding position.

If a large number of plate-shaped articles are transferred at the same time using a lift frame having multiple sets of arms as described above, the conveyance means such as a pallet that conveys the plate-shaped articles to the receiving part of this frame can be easily transferred. The pallet can be replaced while the loaded plate-shaped articles are being sent to the next process such as the assembly process, which eliminates the need for a large amount of space for pallets around the transfer device and allows for easy handling after transfer. There is no waiting time in the process as mentioned above.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1, 2, and 3 show a plate-like article transfer device according to an embodiment of the present invention. There are 4 transfer devices
The book has a main body 2 having book legs 1, and an elevating frame 4 that can move up and down with respect to the main body 2 along a guide frame 3 of the main body 2. This elevating frame 4 is formed in a U-shape with an open bottom when viewed from the direction of arrow A in FIG. ing. These wires 6 are wound through sprocket wheels 7, 8 and a chain 9 onto a winding drum 12 fixed to a winding shaft 11 rotated by a motor 10. When the wire 6 is wound on the winding drum 12, the elevating frame 4 moves up along the guide frame 3, and on the other hand, when the wire 6 is extended from the winding drum 12, it descends under its own weight. A plurality of idling guide rollers 13 are pivotally supported on the inner surface of the guide frame 3, and the elevating frame 4 smoothly moves up and down by bringing the outer surface of the vertical member 4a into sliding contact with these guide rollers 13.

A pallet 14 as shown in FIG. 2 is moved between the four legs 1 of the main body 2. This pallet 14 is reciprocated between the position shown in FIG. 2 and the position where the plate-like articles to be transported are stored in the pallet, by a forklift or a cart moving on laid rails, for example. This palette 14 is
Eight claws 17 (only the mounting level is shown in FIG. 2) are supported at equal intervals on four receiving frames 16 that are fixed upright on the base 15. When these pawls 17 rotate around their pivots and fall inward at almost right angles to the receiving frame 16, they abut against the stopper and do not rotate downward any further, and if pushed up from below, they are free. Four claws 17, which are formed to be able to rotate upwardly and are at the same level, hold one plate-shaped article 18 as shown in FIG. Such a pallet 14 has conventionally been used for conveying a large number of plate-shaped articles, and eight plate-shaped articles 18 are loaded in the plate-shaped article storage section using known means. Note that FIG. 3 shows a state in which the pallet 14 has been withdrawn from the main body 2, and the pallet 14 is not shown.

As shown in an enlarged view in FIG. 4, each vertical member 4a of the lifting frame 4 is rotatable about an axis 19 in a direction facing inward of the lifting frame 4, and a pawl 17 of the pallet 14 is attached to the vertical member 4a. Eight arms 20 are pivotally supported at substantially the same intervals. This arm 20 consists of a relatively long finger portion 20a on the inside side of the lifting frame 4 with respect to the shaft 19, and a relatively short and heavy weight portion 20b on the outside side.When carrying out a plate-shaped article, the arm 20 Due to the unloading operation of the plate-shaped article on the lower side of this arm, the finger part 20a is rotated clockwise from the state shown by the solid line in FIG. It automatically rotates clockwise due to the action. Vertical member 4 of lifting frame 4
A stopper 21 is fixed to a, and the arm 20, which has rotated clockwise due to its own weight as described above, moves to the fourth
It is received by this stopper 21 as shown by the two-dot chain line in the figure. Also, the weight part 20b of the arm 20
There is a push-up pin 22 in the part near the shaft 19.
is provided. The distance between the vertical members 4a of the lifting frame 4 that face each other with the pallet 14 in between is such that the arm 20 falls inward of the lifting frame 4 and its weight portion 20b
With the upper end in contact with the lower end of the stopper 21, the tip of the finger portion 20a is set to protrude inward from the outer end of the plate-shaped articles 18 loaded on the pallet 14. Further, each vertical member 4a of the elevating frame 4 is provided with an elongated kick-up rod 24 that is supported by a plurality of support members 23 and can slide in the longitudinal direction of the vertical member 4a (vertical direction in FIG. 4). In this Kitsukuatsuprotsud 24,
Weight portions 20b of each of the eight arms 20
A protrusion 25 is fixed to a portion located near and below. Kitsukuatsuprod 24 is its protrusion 25
However, the arm 20 lying on the stopper 21
It is provided at a position where it can come into contact with the kick-up pin 22 from below. Also Kitsukuatsuprotsudo 2
The lower end of the rod 4 extends beyond the lower end of the longitudinal member 4a which slidably supports the rod 24.

Hereinafter, the operation of the plate-shaped article transfer apparatus of this embodiment having the above structure will be explained. 8 plate-shaped articles 18
When receiving the pallet 14 loaded with , the lift frame 4 of the transfer device is pulled up to an upper position (transportation position) so as to open between the legs 1 of the main body 2.
When the pallet 14 is placed at a predetermined position between the legs 1 in this state, the motor 10 is driven and the elevating frame 4 is lowered so as to surround the pallet 14 from the front and rear. At this time, even if the arm 20 of the elevating frame 4 protrudes inward, the arm 20 touches the lowest plate-shaped article 18 loaded on the pallet 14 while the elevating frame 4 is descending. I was brought up to a nearly erect state by touching the body,
As described above, it rotates under its own weight and falls onto the stopper 21. Therefore, when the lifting frame 4 is lowered, the arm 20 does not hit all the plate-shaped articles 18 many times.

The elevating frame 4 is lowered and stopped until the eight arms 20 are respectively located below the plate-shaped article 18 (transfer position), but immediately before descending to this transfer position, the above-mentioned kick The lower end of the uprod 24 comes into contact with the upper surface of a contact piece 26 fixed to the pallet 14, and slides upward. When the pickup rod 24 slides in this manner, the pickup pin 22 is pushed up by the claw 25, and each arm 20 rotates counterclockwise in FIG. Therefore, when the lifting frame 4 stops at the transfer position,
The finger portions 20a protrude below each plate-shaped article 18, and the weight portions 20b come into contact with the stoppers 21 from below. Therefore, when the lifting frame 4 is lifted upward from this state, each plate-shaped article 18 is received from below by the four arms 20 as shown in FIG. 14 is moved above. As mentioned above, the claws 17 of the pallet 14 that receive the plate-shaped articles 18
can freely rotate upward, so the claw 17 that was supporting the upper plate-like article 18 is pushed from below by the end of the lower-level plate-like article 18 and rotates. The plate-shaped article 18 is passed through.

Lifting frame 4 holding eight plate-shaped articles 18 and stopping at a position above main body 2 (transportation position)
From there, the plate-shaped articles 18 are sent one by one to the next process using, for example, an air suction type carrying-out means. At this time, the plate-shaped article 18 may be removed from the lifting frame 4 by sliding it laterally on the arm 20, or it may be lifted once above the uppermost arm 20 and then moved laterally. When the plate-shaped article 18 is lifted above the uppermost arm 20 and then moved, the arm 20 is moved above the lowermost arm 20.
All but the book arm 20 are raised by the lifted plate-like article 18, and then rotated by their own weight and fall onto the stopper 21. Therefore, in this case, the next time the lifting frame 4 is lowered, only the arm 20 at the lowest level will hit the uppermost plate-shaped article 18 placed on the pallet only once.

While the plate-shaped articles 18 are being conveyed one by one from the conveying position as described above, the pallet 14 returns to the storage position of the plate-shaped articles 18, loads the next eight plate-shaped articles 18, and returns. , is prepared at a predetermined position within the transfer device while the lifting frame 4 is in the transport position. Incidentally, the empty pallet may be returned to the storage position, and the pallet containing the plate-shaped articles in advance may be transported to a predetermined position of the transfer device. Even in this case, there is no need to prepare multiple spare pallets near the transfer equipment.
It takes less space.

In the embodiment described above, the elevating frame 4 is provided with eight sets of four arms 20, but these numbers are of course not limited to those in this embodiment. Furthermore, the mounting intervals of the arms 20 do not necessarily have to be set at equal intervals. Furthermore, it is not necessarily necessary to give the arm 20 the ability to rotate in the direction of exiting from the plate-shaped article 18 using the aforementioned weight portion 20b or the like. However, if the above-mentioned rotational behavior is provided, the number of times the arm 20 hits the plate-shaped article 18 will be reduced, which is preferable in terms of protecting the plate-shaped article.

As explained above in detail, the device for transferring plate-shaped articles of the present invention eliminates the need to prepare multiple pallets containing a large number of plate-shaped articles at the transfer position, and it is possible to carry out plate-shaped articles one by one. All you have to do is change the pallets while you are there, giving you enough time to change the pallets.
There is no need to wait for the process after transfer due to exchange, and its practical value is extremely high.

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention, Figure 2 is a plan view showing one embodiment of the present invention;
The figure is a front view, FIG. 3 is a side view, and FIG. 4 is an enlarged side view of a part of the embodiment shown in FIG. 2... Main body, 4... Lifting frame, 6... Wire, 10... Motor, 11... Winding shaft, 14...
Palette, 17... Nail, 18... Plate-shaped article, 19
...Axis, 20...Arm, 21...Stopper, 2
2...Kick-up pin, 24...Kick-up prod, 25...Protrusion, 26...Abutting portion.

Claims (1)

[Scope of utility model registration request] A frame body that has a receiving part for a large number of plate-like articles stacked vertically at predetermined intervals on the lower side and a carrying-out part for the plate-like articles on the upper side, and is movable up and down between the receiving part and the carrying-out part. An elevating frame supported by a frame body and surrounding a large number of plate-like articles from the outside, a driving means for moving the elevating frame, a holding position that protrudes from the elevating frame and can place the plate-like articles, and a holding position for placing the plate-like articles. a plurality of arms rotatably supported by the elevating frame between an exit position that allows free passage, and arranged at a position capable of holding the plate-shaped article from below in the holding position; and the elevating frame. The lifting frame is slidably supported in the vertical direction, and when the lifting frame is lowered into the receiving part, it slides upwardly relative to the lifting frame, and this sliding causes the arms to rotate and move these arms to the holding position. A device for transferring plate-shaped articles consisting of a pick-up rod that is protruded from the top.