JPH07242333A - Box body stacking device of palletizing facility - Google Patents

Abstract

PURPOSE:To obtain a box body stacking device of a palletizing facility, excellent in economy and practicability, by which any deviation between upper and lower box body containing products is not generated even when high-speed operation is performed and even after the box body containing products is a plastic-made upper and lower fitting-type case. CONSTITUTION:A box body stacking device is provided with an apron circulating mechanism 1a for receiving a box body 014 as a simple body from a feeding conveyor 06, a stopper for stopping the box body 014 on the apron circulating mechanism 1a to the stacking position, and making only the apron circulating mechanism 1a to pass, and a stacking elevator 1b for receiving the box body 014 dropped from the apron circulating mechanism 1a by the stopper, and to be gradually lowered. And it is provided with a positioning guide mechanism 3 so provided as to be engaged with the lower edge of the box body 014 to be dropped to the box body receiving position above the elevator 1b, and able to adjust the position, and a parallel load dropping supporting mechanism 4 provided between the positioning guide mechanism 3 and a pallet 2a of the elevator la so as to be raised and lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box bar stacking device for palletizing equipment.

[0002]

2. Description of the Related Art For example, as a palletizing equipment for each shipping destination used in a food distribution center, the conventional palletizing equipment shown in FIG.
The one shown in the plan view is known. That is,
In the figure, 01, 02 and 03 are sorting lines for boxed products provided at the shipping ports of the product warehouse 04. Each sorting line 01, 02, 03 is a product warehouse 04
From which the depalletizer 08, the bar stacking device 09, and the palletizer 010 are connected in order through the tandem conveyors 05, 06, 07, respectively, and three kinds of sorting lines 01, 02, 0 are connected.
A shipping conveyor 012 for each shipping destination pallet 011 is arranged so as to pass through the palletizer 010 of No. 3 in order. Reference numeral 013 is a product-specific pallet that is delivered from the product warehouse 04 onto the feed conveyor 05, and reference numerals 014 to 016 are product-containing box bodies that have been separated into box units by the depalletizer 08 and delivered to the conveyor 06. Box with product 014-01
6 are stacked in a required number by the rod stacking device 09, and are sequentially loaded by the palletizer 010 on the pallet 011 for each shipping destination, and are delivered by the forklift 017 or the like to the delivery vehicle 018.
After being loaded into, it is delivered.

Next, in the plan view of FIG. 4 (B) and the side view of FIG. 4 (B) showing the construction of a conventional rod stacking device 09 used in each sorting line 01, 02, 03, the rod stacking device 09 is a conveyor. Product traverse mechanism 01 provided across the end of 06
9, an apron circulation mechanism 021 adapted to receive the product sent by the transverse feed mechanism 019 on a plurality of pipe aprons 020 which are interlocked with the apron circulation mechanism 021, and a lifting fork type arranged below the center thereof. It is composed of a stacking elevator 022. Boxes 014 to 016 (hereinafter referred to as 014) containing products on the supply conveyor 06
Are stopped by hitting the stopper 023 at a fixed position in the product transverse feed mechanism 019, pushed out by the push plate 024 of the transverse feed chain, and placed on the pipe apron 020 in the apron circulation mechanism 021. Apron circulation mechanism 021
The product-containing box 014 hits the stopper 026 and stops, and only the apron 020 receives the product-containing box 014.
The product-containing box 014 rides on the stacking elevator 022, and the stacking elevator 022 descends by the height of the product-containing box 014.
4 are stacked. When the required number of stacks is completed, the stacking elevator 022 is further lowered and the feed conveyor 07
, The product-containing box 014 on the stacking elevator 022 is transferred onto the feeding conveyor 07 and sent out, and the stacking elevator 022 moves up and restarts stacking.

However, such a device has the following drawbacks. (1) As shown in FIG. 4 (C), the product-containing box 014 stopped by the stopper 026 slips down from one end when the apron 020 passes through, and the product-containing box 014 on the lower side is dropped.
Since it overlaps with each other, if a bar-stacking operation is performed at a high speed, for example, 30 boxes per minute, a box containing a plurality of product boxes 01
There is a risk that a gap will occur between the abutting surfaces of No. 4 and a load collapse will occur during transportation of the feed conveyor 07 to the subsequent process. (2) In particular, when the product-containing box 014 is a plastic upper and lower fitting type case, if the case fails to fit during rod stacking, the next case slides down and rod stacking becomes impossible.
The operation of the equipment will be interrupted.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed in view of such circumstances, and even when high speed operation is performed,
Also, even if the product-containing box is a plastic upper and lower fitting type case, there is no misalignment between the upper and lower product-containing boxes, thus providing a box rod stacking device for palletizing equipment with excellent economical efficiency and practicality. The purpose is to do.

[0006]

To this end, the present invention provides an apron circulation mechanism for receiving a single box body from a feed conveyor, and an apron circulation mechanism for stopping the box bodies on the apron circulation mechanism in a stacking position. In the box bar stacking device of the palletizing equipment, which has a stopper for passing only the above and a stacking elevator for receiving the box body scraped from the apron circulation mechanism by the stopper in a stepwise manner, the box body above the elevator A position adjusting positioning guide mechanism provided so as to engage with the lower edge of the box body that falls to the receiving position, and a parallel load provided between the positioning guide mechanism and the elevator bed so as to be vertically movable. It is characterized by having a drop support mechanism.

[0007]

According to this structure, the apron circulation mechanism for receiving a single box body from the feed conveyor and the box body on the apron circulation mechanism are stopped at the stacking position so that only the apron circulation mechanism is passed. In a box bar stacking device of a palletizing facility having a stopper and a stacking elevator that receives the box that has been scraped off from the apron circulation mechanism by the stopper and descends in stages, drops to a box receiving position above the elevator. A positioning guide mechanism that is positionally adjustable so as to engage with the lower edge of the box body; and a parallel unloading support mechanism that is vertically movable between the positioning guide mechanism and the elevator bed. Since the above is provided, the following operation is performed. (1) The product-containing box that is passed from the apron circulation mechanism to the parallel unloading support mechanism is received by the positioning guide mechanism and guided to a certain load receiving position, and as a result, the product-containing box is allowed to slide freely. Movement is prevented, and the state that the box containing product stacked is not shifted up and down left and right,
Even in the case of vertically fitting plastic cases, stacking can be done accurately and in order. (2) The box containing the product guided by the positioning guide mechanism to a certain position is received on the parallel unloading support mechanism and stacked on a rod, and the parallel unloading is placed on the elevator platform and the box is passed to the box again. The cycle of receiving and stacking the rods is repeated, and during this period, the elevator bed is lowered and the operation of passing the rod-loading box body to the feed conveyor is performed separately in two stages. Cycles are shortened and throughput is significantly increased.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment in which the present invention is applied to the bar stacking device 09 shown in FIG. 4 will be described. The same reference numerals in FIG. 4 denote the same members as those in FIG.
(A) In the front view, the bar stacking device 1 is a feed conveyor 0
A box traverse mechanism 019 similar to the conventional one, which is provided across the end portions of 6, and a box containing the product fed by the traverse mechanism 019 on a plurality of pipe aprons 020 which are interlocked with this and are provided at a constant pitch. An apron circulation mechanism 1a having a large circulation width adapted to receive the body 014, and a lifting fork type stacking elevator 1 provided so as to project from this side portion into the central portion.
b and an independent or dual-purpose frame 2 (FIG. 1 (C)) provided in the apron circulation mechanism 1a, and falls to a box receiving position directly below the pipe apron 020 above the elevator loading platform 2a. Positioning guide mechanism 3 that is positionally adjustable so as to engage with the lower edge of the product-containing box 014, and is supported by the frame 2 and the frame of the positioning guide mechanism 3 and the positioning guide mechanism 3 and the stacking elevator 1b. Parallel unloading support mechanism 4 that can be moved up and down between
With.

Next, in FIG. 1 (B) top plan view, FIG. 1 (C) bottom plan view and FIG. 1 (D) side view, the positioning guide mechanism 3 is an H-shaped end of a frame 5 extending in a plane H shape. Part of the frame 2 is integrally supported on the upper end of the frame 2, and a positioning guide piece 6 having a large downward taper surface toward the center of the frame 5 is moved forward and backward through the drive cylinder 7 at the four peripheral portions of the box receiving position directly below the pipe apron 020. It is provided so that it can be moved. In addition, the parallel unloading support mechanism 4 includes a support piece 9 that pivots downward from the horizontal at a central portion of a side of a frame 8 having the same size as the frame 5 of the positioning guide mechanism 3 and having a flat rectangular frame.
The product-containing box 014 which is provided so as to be operated by the synchronous drive by 0 and is dropped to the box receiving position by the four support pieces 9.
And nuts 11 to be screwed into a ball screw described later are provided at four corners.

Further, the parallel unloading support mechanism 4 has four symmetrical bearings 12 provided on the frame 5 of the positioning guide mechanism 3 in the same arrangement as the screw nuts 11 on the parallel unloading support mechanism 4 side. Supporting and extending downward in parallel, the lower end is supported by the bearing 13 at the intermediate height position of the frame 2, and the nuts 11 are screwed to the four ball screws 15 synchronously driven by the motor 14 so as to be able to move up and down. ing. The support piece 9 and the drive cylinder 10 of the parallel unloading support mechanism 4 may be supported on the frame 8 so as to be able to advance and retreat toward the central portion, and the position can be adjusted. Further, reference numeral 16 is an elevator cargo bed of a comb tooth-fork type of the stacked elevator 1b.

In such an apparatus, the box containing the product 0
The steps of the bar stacking operation of 14 will be sequentially described with reference to FIGS. 2 (1) to (4) front view and FIGS. 3 (1) to (3) front view. 2 (1), in the apron circulation mechanism 1a, the protrusion length of the guide piece 6 of the positioning guide mechanism 3 is adjusted according to the box 014 containing the product to be processed, and the parallel unloading support mechanism 4 is positioned. The product-containing box 014 on the feed conveyor 06 is pushed by the push plate 024 of the lateral feed mechanism 019 and is mounted on the pipe apron 020 that circulates synchronously under the state where the product-contained box 014 is moved to and held right below the guide mechanism 3. , Goes on the apron circulation mechanism 1a. In FIG. 2B, the box 014 containing the product advances on the pipe apron 020 and is stopped by the stopper 026 of the apron circulation mechanism 1a. In Fig. 3 (3), only the pipe apron 020 moves to the right, the product-containing box 014 slides down from the rear side, and the lower edge of the rear part comes into contact with the tapered surface of the rear guide piece 6 and the rearward sliding movement is prevented. Be blocked. In the same figure (4), when the product-containing box 014 is completely released from the pipe apron 020,
The product-containing box 014 is centered by the guides of the four guide pieces 6 and supported on the four support pieces 9 of the parallel unloading support mechanism 4, and the ball formed by the motor 14 (FIG. 1 (D)). By driving the screw 15 (Fig. 1 (D)), the nut 11 (Fig.
(D)) to attach the parallel unloading support mechanism 4 to the product box 0
14 is lowered by one height. Slightly after the end of the descent of the product-containing box 014, the next product-containing box 014 arrives on the next pipe apron 020, and the product-containing box 014 is stopped by the stopper 026.

In FIG. 3 (1), when the stacking of a predetermined number of product boxes 014 is completed by repeating the steps of FIGS. 2 (3) to (4), the parallel unloading support mechanism 4 is moved downward. It is lowered to a position at a constant height distance from the stacked elevator cargo bed 2a and stopped. In Fig. 2 (2), the parallel unloading support mechanism 4
When all the drive cylinders 10 (FIG. 1 (C)) are opened and driven at the same time, a plurality of product-containing box bodies 014 stacked horizontally are supported horizontally by dropping a small distance onto the stacked elevator cargo bed 16. It In FIG. 3 (3), when the parallel unloading support mechanism 4 is raised to a position directly below the positioning guide mechanism 3 with the support piece 9 (FIG. 1 (C)) opened, and the support piece 9 is closed, Return to the state of the process shown in 2 (2), and the box with product 0
Restart the 14 bar stacking process. On the other hand, the product-containing box body 014 stacked on the stacked elevator cargo bed 16 moves the elevator cargo bed 16 to a height within the roller interval of the feed conveyor 07, so that the product box body 014 stacked on a bar is removed. Transferred onto the transfer conveyor 07, the transfer conveyor 0
The next palletizer 010 in the subsequent process by driving 7 (Fig. 4 (A))
And the elevator carrier 16 is lifted to a predetermined intermediate height position and made to stand by.

According to the apparatus of this embodiment, the apron circulation mechanism for receiving a single box body from the feed conveyor and the apron circulation mechanism for stopping the box bodies on the apron circulation mechanism at the stacking position. In the box bar stacking device of the palletizing equipment, which has a stopper for passing only the above and a stacking elevator for receiving the box body scraped from the apron circulation mechanism by the stopper in a stepwise manner, the box body above the elevator A position adjusting positioning guide mechanism provided so as to engage with the lower edge of the box body that falls to the receiving position, and a parallel load provided between the positioning guide mechanism and the elevator bed so as to be vertically movable. Since the drop support mechanism is provided, the following effects can be obtained. (1) The product-containing box that is passed from the apron circulation mechanism to the parallel unloading support mechanism is received by the positioning guide mechanism and guided to a certain load receiving position, and as a result, the product-containing box is allowed to slide freely. Movement is prevented, and the state that the box containing product stacked is not shifted up and down left and right,
Even in the case of the upper and lower fitting type plastic cases, they can be stacked accurately and in order, thus improving the practicality.

(2) The box containing the product guided to a fixed position by the positioning guide mechanism is received on the parallel unloading and supporting mechanism and stacked on the rod, and the parallel unloading is carried on the elevator platform to pass the rod-stacked box body, By repeating the cycle of receiving the boxes again and stacking them with rods, during which the elevator bed is lowered and the rod boxes are fed to the conveyer separately in two steps, the result is that The bar stack processing cycle is shortened and the throughput is significantly increased, thus improving the economy.

[0015]

In summary, according to the present invention, the apron circulation mechanism for receiving a single box body from the feed conveyor, and the box body on the apron circulation mechanism are stopped at the stacking position to pass only the apron circulation mechanism. In a box body stacking device of a palletizing equipment having a stopper for allowing and a stacking elevator for receiving the box body dropped from the apron circulation mechanism by the stopper in a stepwise manner, at a box receiving position above the elevator. A positioning guide mechanism that is adjustable in position so as to engage with the lower edge of the box that falls, and a parallel unloading support mechanism that is vertically movable between the positioning guide mechanism and the cargo bed of the elevator. As a result, even when performing high-speed operation, and when the box containing the product is a plastic top-and-bottom type case, It does not occur misalignment between the product entering the box below, thus from obtaining the box-rod loading apparatus of excellent palletizing equipment economics and practicality, the present invention is the extremely valuable industrial.

[Brief description of drawings]

1 shows an embodiment in which the present invention is applied to the rod stacking device 09 of FIG. 4, where (A), (B), (C), and (D) are a front view, an upper plan view, and a lower plan view, respectively. , It is a side view.

2 (1), (2), (3), and (4) are explanatory views showing the action of the first half of the rod stacking apparatus 1 of FIG. 1 in process order.

3 (1), (2), and (3) are explanatory views showing the operation of the second half of the rod stacking apparatus 1 of FIG. 1 in process order.

FIG. 4 shows known palletizing equipment by shipping destination,
(A), (B), and (C) are an overall plan view, a plan view of a bar stacking device, and a front view of a bar stacking device, respectively.

[Explanation of symbols]

 1 Bar Loading Device 1a Apron Circulation Mechanism 1b Stacking Elevator 2 Frame 2a Elevator Loading Platform 3 Positioning Guide Mechanism 4 Parallel Unloading Support Mechanism 5 Frame 6 Guide Piece 7 Drive Cylinder 8 Frame 9 Support Piece 10 Drive Cylinder 11 Nut 12 Bearing 13 Bearing 14 Motor 15 Ball screw 16 Elevator platform 06 Feeding conveyor 07 Feeding conveyor 014 Box containing product 019 Traverse feeding mechanism 020 Pipe apron 023 Stopper 024 Push plate 026 Stopper

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shigeo Inoue 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City Mitsubishi Heavy Industries Ltd. Hiroshima Research Institute

Claims (1)

[Claims] 1. An apron circulation mechanism for receiving a single box body from a feed conveyor, a stopper for stopping the box bodies on the apron circulation mechanism at a stacking position and passing only the apron circulation mechanism, and the stopper. In a box bar stacking device of a palletizing facility having a stacking elevator that receives the box body dropped from the apron circulation mechanism and descends in stages, below the box body falling to a box receiving position above the elevator A positioning guide mechanism having a position adjustable so as to be engaged with an edge portion, and a parallel unloading support mechanism provided so as to be movable up and down between the positioning guide mechanism and the cargo bed of the elevator are provided. Box palletizing equipment for palletizing equipment.