JPH0569947A - Carrier and accumulation device of bent product - Google Patents

Abstract

PURPOSE:To accumulate bent products vertically in a concentrated manner so as to prevent deformation of the product by providing an absorption surface of an absorption device so that it can be freely tilted so as to correspond to a seat back part of a pallet with seat back. CONSTITUTION:A product G bent by a bending machine is carried up to an absorption point by a cross conveyer 3, and is absorbed by a vacuum pat, and is then lifted. The product is then carried up to a stand-by point of a pallet 7 with seat back, and the vacuum pat is lowered, while deformation of the product is prevented by accumulating the bent products G vertically in a concentrated manner so as to correspond to the seat back of the pallet 7 with seat back. The bent product G is stored in a shelf 105 in an automatic warehouse 9 by the cross conveyer 3, while a vacant pallet is carried out of the shelf 105 in the automatic warehouse 9 and is carried to the stand-by point, and accumulation work is resumed, and continuous accumulation is thus carried out by repeating the process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention conveys products processed by a vendor by various kinds of conveying devices and closely mounts them vertically on an accumulating pallet to carry out bending products for preventing deformation of the products. Regarding an integrated device.

[0002]

2. Description of the Related Art Conventionally, in this type of technology, a product processed by a vendor is sent to a carry-out table, and the product is taken out from the carry-out table by a forklift or a crane, or sucked by a vacuum pad, and then lifted by aerial transport to collect the lifter. It was taken out on the dolly.

[0003]

However, in the conventional technique, the number of the lifter trucks for integration is limited, and therefore, it is necessary to carry out the work repeatedly and fully. Further, when products are stacked, the products in the lower layer will be deformed by the weight of the products in the upper layer.

Further, the frame-shaped product and the thin plate molded product have a problem that they have a low rigidity and are deformed so that they cannot be integrated. This is especially true for products with large holes or notches.

In order to solve the above-mentioned problems, an object of the present invention is to provide a carrying-out and stacking device for a bent product in which the products are vertically stacked and closely stacked on a pallet with a backrest to prevent the products from being deformed. is there.

[0006]

To achieve the above object, according to the present invention, a carry-out position in the vicinity of a bending apparatus for processing a bent product and a pallet position with a backrest beside the carry-out position are provided. An adsorbing device that adsorbs the bent product is reciprocally provided between the pallet position and the unloading position, and the adsorbing surface of the adsorbing device can be tilted to correspond to the backrest of the pallet with a backrest. The device for carrying out and accumulating the bent products provided in the above was constructed.

Further, a multistage shelf capable of accommodating the pallet with a backrest is arranged at one side of the pallet position with a backrest, and a moving means for moving the pallet with a backrest between the multistage shelf and the pallet position with a backrest. And a carrying-out / collecting device for the bent product.

[0008]

By adopting the apparatus for carrying out and accumulating bent products according to the present invention, the bent products processed by the bending apparatus are sucked up by the suction device at the carry-out position and moved up to the standby position of the pallet with a backrest. Then, since the suction device is lowered and the bent products are closely adhered and accumulated vertically so as to correspond to the backrest portion of the pallet with a backrest, the deformation of the product is prevented.

[0009]

An embodiment of the present invention will be described in detail below with reference to the drawings.

First, as shown in FIG. 2, a bending device 5 is arranged in the vicinity of a cross conveyor 3 provided below the stacking device 1 for carrying out and delivering the bent product G of the embodiment of the present invention.

Then, from the top of FIG. 2, the cross conveyor 3
The bent products G, the pallet 7 with a backrest, the automatic warehouse 9 and the stacker crane 11 which are stacked in this order are arranged in this order, and all of them are centering CR standards.

Therefore, the bent product G bent by the bending device 5 is carried into the automated warehouse 9 by the cross conveyor 3 and the pallet 7 with a backrest is stacked by the stacker crane 11.

Next, details of the above-mentioned devices and equipment will be described.

Referring to FIGS. 1 to 4, a bent product G
The pedestal 13 of the carrying-out / collecting device 1 (hereinafter, simply referred to as “conveying / collecting device”) has a cubic shape in which two beam members 15 on the left and right are supported by a pillar member 17.

The traverser 1 using the beam member 15 as a rail
9 are arranged on each of the left and right rails (beam members) 15 in FIG. 3 and reciprocate in the left and right directions in FIG.

The driving force for the reciprocating movement of the traverser 19 is performed by an electric motor 21 shown in FIG. A connecting shaft 23 is connected to the left-right motor 21 via a bearing (not shown) fixed to the beam member (rail) 15.

As shown in FIG. 4, rack gears 25 are attached to the left and right pillars 17, and the rack gear 25 and the both ends of the connecting shaft 23 are fixed so that the force of the left and right moving electric motors 21 is adjusted to the left and right. Slide 2 of the traverser 19
The pinion gear 29 transmitted to the gears 7 meshes with each other, thereby synchronizing the left and right movements of the traverser 19.

The left and right slides 27 are used for the traverser 1
9 and is moved up and down along the LM guide rail 29A. The vertical movement of the slide 27 is performed by a lifting electric motor 31 shown in FIG.

A rack gear 25 is provided on the left and right pillars 17.
The rack gear 25 is fixed to both ends of the connecting shaft 23 and meshes with a pinion gear 29 that transmits the output of the lifting electric motor 31 to the slide 27.
Thereby, the vertical movement of the slide 27 is synchronized.

As shown in FIGS. 1 and 4, a swing hinge (bearing) is provided at the lowermost end of the slide 27 of the traverser 19.
37, a rotary shaft 39 is rotatably attached via the rotary hinge 37, and a vacuum frame 41 is attached to the rotary shaft 39.

As shown in FIG. 5, the vacuum frame 41 is supported by a rotary hinge 37 and is connected to a rotary drive electric motor 43 via a rotary shaft 39. A vacuum arm 47 is attached to the vacuum frame 41 by a slide unit 45.

A vacuum unit 49 for attracting the bent product G is attached to the vacuum arm 47. As shown in FIG. 6, the slide unit 45 connects the vacuum arm 47 and the vacuum frame 41 with a knob nut 53 through a long slide hole 51 provided in the vacuum arm 47. That is, the knob nut 53 is attached by the slide piece 55,
5 allows the vacuum arm 47 to move in the left-right direction in FIG.

As shown in FIG. 7, the vacuum unit 49 connects the flange end of the vacuum block 57 and the vacuum arm 47 with a knob nut 53. That is, the knob nut 53 is attached by the slide piece 55, and by loosening the knob nut 53, the vacuum block 57 can be moved.

The suction block 61 is attached to the vacuum block 57 via a slide bearing 59, and a vacuum pad 63 is fixed to the tip thereof. The vacuum pad 63 has a spring 65 attached to the suction pipe 61 in order to absorb an impact force generated when the vacuum pad 63 is pressed against the bent product G. Further, in order to detect the vertical position of the suction pipe 61,
A lift detection proximity switch 67 is attached to the vacuum block 57 by a bracket 69.

As shown in FIG. 1, the vacuum arm 47
The cross conveyor 3 is disposed below the. The cross conveyor 3 is provided to convey the product G after the bending process and to position the product G at the stacking position.

As described above, the pallet 7 with the backrest is
It is located between the cross conveyor 3 and the automated warehouse 9 and is disposed immediately below the slide descending position P as shown in FIG.

As shown in FIG. 8, the pallet 7 with a backrest has a pallet seat 71 having a sufficient size for allowing a plurality of bent products G to be placed vertically, and a pallet seat 71 having the same size and a sufficient height. It is composed of a backrest 73 having a height, and the backrest 73 is a pallet seat 71 during work.
On the other hand, as shown in the figure, for example, an inclination angle θ of 80 ° to 90 °
_{It is set as A} , and the inclination angle θ _A is adjusted by the backrest 73
The rotation is performed around a rotatable hinge 75 provided at the center.

Further, the backrest 73 is firmly held at the inclination angle θ _A adjusted by the stay 77 as shown in the portion C of FIG. 10 and FIG. 11, and the tip of the pallet seat 71 and the upper end of the backrest 73 are provided with fishing gear 79. A hook 81 provided on the tip or upper end of the stay 77 is hooked on the fishing fitting 79, the pallet seat 71 and the backrest 73 are tensioned by a turnbuckle 83, and the pallet 7 with a backrest can also serve as a safety guide. it can.

Further, as shown in FIG. 12 and FIG.
A stopper 85 is provided near the front end of the pallet seat 71. The stopper 85 has a torsion spring 91 attached to a shaft 89 rotatably provided on a bearing seat 87. Torsion spring 91
Has one end fixed to the shaft 89 and the other end fixed to the fixing piece 93 of the pallet seat 71. The torsion spring 91 is twisted by the rotation of the shaft 89, and is restored by the torsion spring 91 when the shaft 89 is rotated in the reverse direction. To do.

A stop rod 95 is provided at the tip of the shaft 89 with a nut 97.
The pallet seat 71 has a stop piece 99A fixed thereto to prevent the stop bar 95 from overshooting.

As shown in FIG. 14, a soft rubber sheet 101 for preventing scratches is attached to the portion of the pallet 7 with a backrest that comes into contact with the bent product G. This rubber sheet 101
In addition to the flat plate, as shown in FIG. 15 (another embodiment), a corrugated groove 103 is formed to prevent the bent product G from being displaced,
Prevents collapse of the bent product G.

As shown in FIGS. 1 and 2, the automatic warehouse 9 is arranged at the rear of the pallet 7 with a backrest, and is provided with a multi-stage shelf 105 capable of accommodating a plurality of pallets 7 with a backrest.
Chain conveyor 1 for moving the pallet 7 with a backrest between the shelf 105 and the position of the pallet 7 with a backrest
07 is provided.

The stacker crane 11 stores the pallet 7 with a backrest on the shelf 105 of the automatic warehouse 9 or
It is equipment for taking out empty pallets from the shelves 105 by a chain conveyor 107.

With the above construction, the apparatus 1 for carrying out and accumulating bent products according to the present invention operates as follows.

(1) First, a bending device 5 is used to form a steel plate or the like to produce a bent product G (see FIG. 2).

(2) The bent product G is conveyed from the bending apparatus 5 onto the cross conveyor 3 (see FIG. 2).

(3) The bending product G is stopped at the accumulation center by the centering unit of the cross conveyor 3 (see FIG. 2).
reference).

(4) The end surface of the bent product G is aligned with the stacking reference position S by the cross conveyor 3 (see FIG. 1).

(5) The traverser 19 is made to stand by at the suction position (see FIG. 1).

(6) The lifting / lowering electric motor 31 is operated, and the slide 27 of the traverser 19 is lowered by the engagement of the pinion gear 29 and the rack gear 25 (see FIG. 4).

(7) The lowering of the bent product G is stopped by a shaft up / down detection proximity switch (not shown) of the vacuum frame 41 and the vacuum unit 49 (see FIG. 1).

(8) The vacuum pad 63 of the vacuum block 57 attached to the tip of the slide 27 is crimped to the bent product G to be adsorbed (see FIG. 1).

(9) The vacuum pad 63 raises the bent product G while adsorbing it (see FIG. 1).

(10) The left and right moving electric motor 21 is operated to move the traverser 19 to the right along the rail (beam member) 15 and stop at the slide lowering position P (see FIG. 1).

(11) Further, the slide 27 is lowered, the lower end surface of the bent product G is detected by the photoelectric switch 33 for detecting the integrated height, and the lowering of the slide 27 is stopped (see FIG. 1).

(12) The pallet 7 with a backrest is made to stand by at the stacking position of the chain conveyor 107 (see FIGS. 1 and 2).

(13) The traverser 19 is moved to the pallet-equipped pallet 7 side (see FIG. 1).

(14) Bent product G and pallet with backrest 7,
Alternatively, when the bent product G to be accumulated and the already accumulated bent product come into contact with each other and the shaft up / down detection switch of the vacuum unit 49 detects the tip end of the shaft, the traverser 19 is stopped (see FIG. 1).

At this time, the backrest 73 of the pallet 7 with a backrest and the vacuum arm 47 are inclined as shown in FIG. That is, θ _A : inclination of the backrest 73 (80 ° to 89 °) θ _B : θ _A −3 ° is optimal.

By providing a tilt angle difference between θ _A and θ _B ,
The accumulation work described below becomes easy. The upper end of the bent product G is brought into contact with the already-folded bent product G earlier than the lower end, and the lower end is gradually lowered onto the pallet seat 71 while the back surface is brought into contact with the already-folded bent product G.

At this time, the vacuum is released by sequentially delaying the timing from the lower end side of the work to the upper end side thereof, as shown in FIG.

Then, the bent product G rotates around the vacuum pad 63 at the uppermost position where the vacuum product is adsorbed, and the bent product G already accumulated and the bent product G to be accumulated next are brought into close contact with each other. Become.

(15) When carrying the bent product G into the pallet 7 with a backrest, as shown in FIGS. 16 and 17, the stop bar 95 of the stopper 85 is pushed down by the bent product G. At this time, the shaft 89 rotates and the torsion spring 91 is in a twisted state (see FIG. 16).

After the bending product G has been carried in, the pressure of the stop bar 95 disappears, so that it is restored by the elasticity of the torsion spring 91, and the corner of the bending product G is pressed by the elasticity of the torsion spring 91. Therefore, if a load collapse of the bent product occurs, it is prevented from falling (see FIG. 17).

(16) After releasing the bent product G, the traverser 19
Moves to the slide lowering position P and returns to the suction standby state of the bent product G.

(17) The full load of bent products G is detected on the pallet 7 with a backrest at the moving position of the traverser 19.

(18) Pallet with backrest 7 that is fully loaded
Is transported into the automated warehouse 9 by the chain conveyor 107.

(19) The pallet with backrest 7 is stored in the shelf 105 of the automatic warehouse 9 by the stacker crane 11.

(20) Shelf 105 by stacker crane 11
Empty pallets are unloaded from the inside onto the chain conveyor.

(21) Restart the collection work.

(22) Continuous accumulation is performed by repeating the above steps.

As described above, in the embodiment of the present invention, the bending product G processed by the bending device 5 is carried to the suction position by the cross conveyor 3 and the vacuum pad 6 is used.
3. The product is deformed because it is adsorbed and lifted by 3 and carried to the standby position of the pallet 7 with a backrest, where the vacuum pad 63 is lowered and the bent products G are closely adhered vertically so as to correspond to the backrest of the pallet 7 with a backrest. Can be prevented.

Further, the bent products G are stored on the shelves 105 in the automatic warehouse 9 by the cross conveyor 3, and at the same time, empty pallets are unloaded from the shelves 105 in the automatic warehouse 9 and carried to the standby position to resume the accumulation. By repeating the above, continuous accumulation was performed.

The present invention is not limited to the above embodiment, but can be implemented in other modes by making appropriate design changes.

[0065]

As can be understood from the above description of the embodiments, according to the present invention, the bent product processed by the bending apparatus is carried to the carry-out position, sucked by the suction apparatus and lifted, and the backrest. The product is transported to the stand-by position of the attached pallet, and the suction device is lowered there, and the bent products are adhered and accumulated vertically in order to correspond to the backrest of the pallet with the backrest. About is very effective. Further, the accumulated bent products are not damaged by the weight.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of an apparatus for carrying out and accumulating bent products according to the present invention.

FIG. 2 is a plan view of FIG.

3 is a view taken along the line III-III in FIG.

FIG. 4 is a view taken along the line IV-IV in FIG.

5 is a view on arrow VV in FIG. 4. FIG.

FIG. 6 is a detailed view of a VI arrow portion in FIG.

FIG. 7 is a detailed sectional view of a portion taken along the line VII in FIG.

FIG. 8 is a detailed sectional view of a pallet with a backrest.

FIG. 9 is a detailed sectional view of a pallet with a backrest.

FIG. 10 is a detailed sectional view of a pallet with a backrest.

11 is a detailed cross-sectional view of a C portion of FIG.

FIG. 12 is an enlarged sectional view of a stopper.

13 is a view taken along arrow XIII-XIII in FIG.

FIG. 14 is a detailed cross-sectional view of a pallet with a backrest to which a rubber sheet is attached.

FIG. 15 is a cross-sectional view of a rubber sheet in which corrugated grooves are formed in a pallet with a backrest.

FIG. 16 is an operation diagram of a stopper in a pallet with a backrest.

FIG. 17 is an operation diagram of a stopper in a pallet with a backrest.

[Explanation of symbols]

 1 Unloading / collecting device 5 Bending device 7 Pallet with backrest 9 Automatic warehouse 11 Stacker crane

Claims (2)

[Claims] 1. A carry-out position near a bending apparatus for processing a bent product, a pallet with a backrest beside the carry-out position, and the bent product between the pallet position and the carry-out position. Removal and stacking of a bent product, characterized in that it is equipped with an adsorbing device that has adsorbed the reciprocating motion, and that the adsorbing surface of the adsorbing device is provided so as to be tiltable to correspond to the backrest portion of the pallet with a backrest. apparatus. 2. A multistage shelf capable of accommodating the pallet with a backrest is disposed on one side of the pallet with a backrest position.
2. The apparatus for carrying out and accumulating bent products according to claim 1, further comprising: a moving means for moving the pallet with a backrest provided between the multistage shelf and the position of the pallet with a backrest.