JPH061331A - Chute push-up mechanism for case - Google Patents

Abstract

PURPOSE:To automate the dumping operation of loads by a method wherein a specified number of holes are formed in the bottom of a case, a chute is laid on the bottom thereof and the push rods of a push-up mechanism supported on a case supporting device are passed through the holes of the case bottom to force up the chute. CONSTITUTION:Three or more holes 2 are formed in the bottom of a case 1, a chute 3 is laid within the case 1 and loads W are placed on the chute 3. This case 1 is supported on a supporting plate 14. On the other hand, a push-up rod base plate 12 having push rods 13 is provided below the supporting plate 14 and is made freely vertically movable by an air cylinder 10. The push rods 13 are made up of the combination of a long rod 13b and a short rod 13a. The push rods 13 are moved upwards by the air cylinder 10 and passed through the holes 15 of the supporting plate 14 and then through the holes 2 in the bottom of the case 1 into the case 1 to push up the chute. Due to the difference in length between the push rods 13, the chute 3 is tilted on the case 1 and the loads W are slid down the chute and dumped automatically.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chute raising system for dumping (discharging) a load in a box, which can easily take out the load without tilting the packed box. The dump truck can be quickly and easily dumped, and is effective for automating the discharging work of the luggage in the box.

[0002]

2. Description of the Related Art In order to discharge a load in a box, the box must be tilted and dumped, or the items in the box must be taken out manually. In order to incline and eject the box, the box must be rotated by 90 degrees or more, but after the ejection is completed, the box must be rotated by 90 degrees or more in the opposite direction to return to the original posture. Performing this operation manually is labor-intensive and labor-intensive, and is not efficient, and in order to automate this operation, the box gripping mechanism and the reversing operation mechanism are complicated and expensive. The operation takes time, and the mechanism becomes more complicated and expensive when the dump operation is performed while the box is moved horizontally. The above problem arises because the box itself must be tilted in order to dump the load in the box. The same applies to shallow boxes such as trays as well as deep boxes.

[0003]

SUMMARY OF THE INVENTION In order to complete the above dumping operation with a simple mechanism and a simple operation, the present invention allows the dumping operation to be performed without moving the box itself. The problem is to devise a box and a dump operation mechanism.

[0004]

[Means for Solving the Problems] The measures taken to solve the above problems are constituted by the following elements (a), (b), (c) and (d). (A) Three or more holes are provided on the bottom of the box, and a chute (bottom plate) is laid on the bottom of the box. (B) A push-up mechanism having a plurality of lifting rods penetrating the holes provided on the bottom of the box. Is provided under the box supported by the box supporting device, and (c) the heights of the tips of the plurality of push-up rods are different, and a virtual plane including the apexes of all the push-up rods is an inclined plane. What you did
(D) The engaging portion of the push-up rod is provided on the lower surface of the chute.

[0005]

[Operation] Pack the box in a chute and transfer the box. The box is placed on the box support device at a predetermined position, and when the push-up rod is pushed up by the push-up mechanism provided under the box supported by the box support device, the push-up rod is inserted from the hole in the bottom of the box and the chute The upper end thereof engages with the engaging portion on the lower surface of the. When the push-up rod further rises after that, the heights of the push-up rod tips are different, and the virtual plane including the vertices of all the push-up rods is an inclined plane, so the shoot is first inclined and then inclined. It is pushed up in parallel in the state. The lift of the chute pushes the load in the box up, and when the lowest side of the chute reaches the top of the box, the load in the box is completely dumped. During this time the box does not move at all. Since the tip of the push-up rod is engaged with the engaging portion on the lower surface of the chute, the position of the chute with respect to the box does not shift even though the load moves on the chute at the time of dumping. When is lowered, the chute is firmly seated on the bottom of the box again. The engagement part with the push-up rod is provided on the lower surface of the chute in order to prevent the chute from shifting relative to the box in the raised position, so the above-mentioned engagement part is not necessary if the chute can be dropped together with the load. Is. The reason for providing three or more holes on the bottom of the box is to tilt the chute with the tip of the lifting rod and to allow the chute to be lifted stably in the tilted state. The arrangement should be such that the three vertices of the virtual triangle, the four corners of the virtual quadrangle, etc. are pushed up in a stable state by the shooter being slanted by the push-up rod. Number of holes and push rods is 3 to 4
Is suitable, and more than that is not particularly advantageous. Further, when the box support device is a stationary one, the push-up mechanism having the lifting rod may be a stationary type, but the box support device is a transfer device such as a belt conveyor or a roller conveyor to perform a dump operation while transferring. In the case of a transfer device, the above-mentioned push-up device may be provided on the moving table below the transfer device, and the moving speed of this moving table may be synchronized with the box transfer device. The reason for lowering the pair of tips on the left side of the lifting rod is to tilt the chute and dump the load inside the box to the outside of the box using gravity, so push the load inside the box. When the present invention is used to raise the rods so that they can be easily taken out, the shoots may be pushed up horizontally with all rods having the same height.

[0006]

EXAMPLES Next, examples will be described with reference to the drawings. Four holes 2 are provided on the bottom 5 of a normal square poly box 1, and four hemispherical recesses 4 are provided on the lower surface of a square plate-shaped chute 3 laid on the bottom 5 of the box 1. ing.
The shape of the chute 3 is almost the same as the shape of the plate 5 of the box 1, and the arrangement of the recesses 4 is the same as the arrangement of the holes 2 of the box 1. A base 12 of a push-up rod is fixed to the tip of a piston rod 11 of the air cylinder 10 by bolting or the like, and four push-up rods 13 are provided vertically on the base, two for each left and right. The arrangement of the push-up rod is the same as the arrangement of the recess 4 of the chute 3 and the arrangement of the hole 2 of the bottom 5 of the box 1. The height of the left pair of rods 13a is lower than the height of the right pair of rods 13b, and the upper end e thereof has a hemispherical shape having a curvature slightly larger than that of the recess 4 on the lower surface of the chute 3. When the air cylinder 10 is operated and the push-up rod 13 is pushed up while the box 1 is placed on the box support plate 14, the rod 13 causes the hole 15 of the support plate 14 and the hole 2 of the bottom 5 of the box 1. First, the hemispherical tip e of the right long rod 13b engages with the hemispherical recess 4 on the lower surface of the chute 3 to push up the right side of the chute 3. As a result, the chute 3 is surely slanted downward to the left regardless of the unevenness of the luggage,
Then, the hemispherical tip e of the left rod 13a engages with the hemispherical recess 4 on the lower surface of the chute 3. When the push-up rod subsequently rises, the chute 3 is pushed up in the box in an oblique state, and the luggage is dumped to the left. Shoot 3
When the left side of the box reaches the upper end of the box 1, all the loads W in the box are dumped to the left of the box. When the load is dumped and the push-up rod is lowered later, the chute 3 is put back in the bottom of the box. If there is a risk that the box will be pushed up as the chute and the load inside it rise, a simple pressing device, such as lightly pressing the left and right sides of the box, should be attached to the support plate 14 to prevent this. Good. Since the tip e of the push-up rod 13 is hemispherical and its curvature is slightly larger than the curvature of the recess 4, even if the tip of the rod 13 and the recess 4 are slightly displaced, the tip e of the push-up rod 13 is It securely engages the hemispherical recess 4. The push-up rod 13 is used to shoot 3
In order to prevent the chute 3 from being displaced relative to the box 1 in the ascending position where the chute 3 is pushed upward,
3 is provided with a suction cup 16 connected to a vacuum generating device through a pipe 17 (see FIG. 7), and when the chute 3 is raised by the push-up rod 13, the suction cup 16 holds the chute 3
The lower surface of the chute 3 does not move even if the luggage W moves on the chute 3 during dumping so that the position of the chute 3 with respect to the box 1 does not shift. Alternatively, the suction of the suction cup 16 may be released. In a case where a box is transferred by a conveyor, the support plate 14 corresponds to a conveyor, so that the air cylinder 10 moves below the conveyor (not shown).
Is installed in. If the moving speed of the moving table is synchronized with the transfer speed of the conveyor, the moving table is activated when the box reaches a predetermined position so that the box and the lifting rod 13 can be moved.
The push-up rod 13 can move up and down with respect to the box 1 while its relative position remains constant.

[0007]

[Effect] As described above, according to the present invention, regardless of the depth and size of the box, and regardless of the type of baggage such as bulk goods, rod-shaped objects, and heavy objects, the baggage can be easily, easily, and quickly placed in the box. It can be taken out from the container, and its working efficiency can be remarkably improved. Since the work of taking out the luggage can be automated, it can greatly contribute to solving the shortage of manpower. Furthermore, the device of the present invention has a very simple mechanism,
Its production cost is extremely low, and a large economic effect can be achieved with a small capital investment.

[Brief description of drawings]

FIG. 1 is a sectional view of a box.

FIG. 2 is a plan view of FIG.

FIG. 3 is a plan view of a chute.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a front view of the entire dump mechanism of the box of the present invention.

6 is an explanatory diagram showing an operating state of the dump mechanism of the box in FIG.

FIG. 7 is a front view of an embodiment in which a suction cup is provided at the tip of the push-up rod of the dump mechanism of the box of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Box 2 ... Hole 3 ... Chute 4 ... Recess 10 ... Air cylinder 11 ... Piston rod 12 ... Push-up rod base 13 ... Push-up rod 13a ... Short rod 13b ... Long rod 14 ... Support plate 15 ... Hole of support plate 16 ... Sucker 17 ... Pipe e ... Upper end of push-up rod W ... Luggage

Claims (4)

[Claims] 1. A box-supporting push-up mechanism having three or more holes on the bottom of the box, a chute (bottom plate) laid on the bottom of the box, and a plurality of lifting rods penetrating the holes provided on the bottom of the box. Box chute lifting mechanism provided under the box supported by the device. 2. The chute lifting mechanism for a box according to claim 1, wherein the heights of the tips of the plurality of push-up rods are different, and the virtual plane including the apexes of all the push-up rods is an inclined plane. 3. A chute pushing-up mechanism for a box according to claim 1, wherein an engaging portion of said push-up rod is provided on a lower surface of said chute. 4. A box chute push-up according to claim 1, wherein a push-up mechanism having a push-up rod is provided in a moving device under the box transfer conveyor, and the moving speed of the moving device is synchronized with the transfer speed of the box by the conveyor. mechanism.