JPS6361250B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for stacking roof tiles before bundling.

A conventional tile stacking device T as shown in FIGS. 1 and 2 is capable of vertically moving tiles K conveyed onto an alignment conveyor C ₁ of double-row conveyors C ₁ and C ₂ and horizontally. The sheets are suctioned up by a suction device S, moved horizontally and lowered onto a stacking conveyor _C2 installed in parallel, and this is repeated a desired number of times until the desired number of sheets have been stacked and transported to the next bundling process. However, the scale of the equipment became large, which not only increased equipment costs but also took up a lot of space. Furthermore, in this double-row conveyor system, from the alignment conveyor C ₁ , tiles K corresponding to the number of stacked tiles are
are stacked at the same time and are intermittently conveyed onto conveyor _C2 , so the first few blocks will be short in number, so
This requires manual replenishment and stacking up to the desired number of sheets, or requires removal from the line during transportation to the bundling process, which is a time-consuming process. In addition, there are those in which the appropriate number of slabs are pushed out when the conveyor bar protrudes sequentially along the guide rail, and those in which the slabs are stacked one by one until a predetermined number is reached using claws suspended from an overhead traveling crane. Furthermore, although there were some devices that simply sucked items with suction cups and lifted them up, turned them, and moved them, there was no one that stacked up items by repeating individual lifting and lowering and whole lifting as in the present invention.

The purpose of the present invention is to solve the above-mentioned drawbacks, reduce equipment costs and narrow the installation space by simplifying the mechanism structure, and stacking method and device that enables stacking a desired number of sheets from the initial pile. It is provided by.

The basic structure of this invention is a conveyor in one column that conveys tiles intermittently, and
A small number of adsorbers are arranged so that they can be raised and lowered as a whole and individually by means of an air cylinder.Examples of the present invention will be described below with reference to the drawings.

As shown in FIGS. 3 and 4, the stacking device 1 includes a plurality of stacking devices arranged around the outer periphery of a reversing drum 5 whose center is a rotating shaft 4 supported by bearings 3, 3 attached to the upper surface of the pedestal 2 at approximately the center. A conveyor 8, 8, . . . for carrying in roof tiles K is placed on the carrying-in side (on the right side in FIGS. 3 and 4) of a reversing device 7, which is made up of a pair of forks 6, 6 attached radially.
. A common endless bed 13 is hung between the carry-in motor 11 attached to the shelf 10 of the frame 2 and a plurality of clutch brakes 12 arranged in parallel, and the carry-in conveyor 8 above corresponding to the clutch brakes 12 is attached. , 8, ...... drive wheel 1
4, 14, . . . and the drive wheels 15 of the reversal waiting conveyor 9 are connected by endless belts 16, respectively.

The unloading side of the reversing device 7 on the pedestal 2 (Fig. 3,
On the left side in Fig. 4), stacking conveyors 18, 18, ...... are connected to the reversing receiving conveyor 17, and stacking conveyors 18, 18, ...... are connected to the stacking conveyor 18, 18, . The stacking conveyor 18 is provided with a plurality of clutch brakes 21 suspended by a motor 19 for feeding the stacking conveyor and a common endless belt 20 on the shelf section 10 below the group of stacking conveyors 18.
and another endless belt 22.
A frame 25 is connected to the drive wheel 23 of the stacking conveyor 18 and the drive wheel 24 of the stacking conveyor 18, and is disposed astride above the stacking conveyor 18 group of the frame 2.
An air cylinder 26 for raising and lowering the entire body is installed vertically on the
A mounting plate 30 of an adsorption device 29 (described later) is connected to the lower end of the rod 27 of the air cylinder 26 via a mounting frame 28, and guide shafts 31 vertically disposed at a plurality of locations on the frame 25 are connected to the mounting plate 30.
The air cylinders 33 for individual lifting and lowering are vertically installed on the mounting plate 30 directly above the stacking conveyor 18, and the air cylinders 3
The adsorbers 29 are fixed to the lower ends of the rods 34 of No. 3, respectively.

To explain the suction device 29 in detail, a suction cup 3 in the shape of a rubber or synthetic resin is attached to the bottom surface of a body 36 in the form of a sealed box having a curved bottom surface 35 along the top surface of the roof tile K.
A large number of hoses 38 are attached to the upper part of the main body 36.
and connect it to a vacuum chamber (not shown).

Photoelectric switches 39, 39, . . . and the reversing drum 5 are placed in front of each of the carry-in conveyors 8, 8, . . . and the stacking conveyors 18, 18, . Install the limit switch 40 close to the entrance side,
It is electrically connected to the lower clutch brakes 12 and 21 and to the reversing device 7.

In the figure, reference numeral 41 indicates a conveyor for carrying out to the bundling process, reference numeral 42 indicates a drive motor of the reversing device 7, and reference numeral 43 indicates a gearbox.

To explain the operation of the present invention based on the drawings of the embodiment, as shown in Figs. It is scooped up by forks 6, 6 attached radially to the reversing drum 5 of the device 7, reversed in the direction of arrow R, turned over, placed on the first stacking conveyor 18 on the transport side, and placed on the sixth stacking conveyor 18.
As shown in FIG. All three air cylinders 33 are in the raised position, and the air cylinder 26 provided on the upper frame 25 for raising and lowering the entire body is operated to move the rod 27 and the mounting frame 28.
Then, all the suction devices 29 are simultaneously lowered via the mounting plate 30, and each one of the tiles K stopped on the lower stacking conveyor 18 is moved to the suction cup 37 at the same time.
When the tile K is adsorbed, the air cylinder 26 for raising and lowering the whole unit operates and all adsorbers 2 that have adsorbed the tile K are moved.
9 simultaneously rises and lower stacking conveyor 18
Everything above will be empty. (Fig. 6B) Next, when the stacking conveyor 18 advances intermittently by one tile, one tile K is carried onto the first stacking conveyor 18 (Fig. 6C) and when it stops, the rightmost Only the individual lifting air cylinder 33 (in Fig. 5) is operated and lowered, and the adsorber 2
The tile K that had been adsorbed on the tile 9 is lowered onto the tile K that has been carried in and is stacked in two layers, and this right end adsorber 29 rises empty.

Next, intermittent conveyance is performed, and the two stacked tiles K are stopped directly below the center suction device 29, and when one more tile K is carried onto the stacking conveyor 18 at the right end and stopped, the central suction Only the container 29 is lowered by the operation of the individual lifting air cylinder 33 in the center, and the adsorbed roof tiles K are further stacked on top of the two tiles to form a three-layer stack. (Fig. 6 D) When the central suction device 29 is empty and rises, the stacking conveyor 18 further advances intermittently to transport three stacked tiles K directly below the leftmost suction device 29, and at the same time, the central and rightmost suction devices are conveyed. One tile K is intermittently carried directly under the suction device 29 and when it stops, only the leftmost suction device 29 is lowered by the operation of the individual elevating air cylinder 33, completing the stacking of four tiles.
(Fig. 6 E) Furthermore, as the stacking conveyor 18 moves forward intermittently, the stacked mass K' of which four sheets have been stacked is transferred onto the carrying-out conveyor 41 and carried out to the next process, and at the same time, all stacking conveyors 18 are After the tile K has been placed, it stops, and all the adsorbers 29 remain empty and rise. (Fig. 6F, Fig. 6A) By continuously repeating this process, the desired number of tiles (in this case, 4) of stacked blocks K' can be obtained from the first tiles to the bundling process. It is done on a vertical line.

Since this invention has the above-described configuration, it has the following advantages.

(1) Since tiles that are intermittently conveyed on a single vertical conveyor line are stacked by raising and lowering the suction device that can raise and lower the tiles as a whole and individually, only one conveyor line is required and the suction machine only moves up and down. in,
Since there is no need for horizontal movement, the entire device is simplified, and therefore equipment costs are significantly reduced, and economical benefits are significant as it requires less than half the space of the double-row conveyor type.

(2) Since the desired number of sheets is stacked from the first stacked block that comes out after the start of conveyance for stacking, unlike the double-row conveyor type, there is no problem where the first few blocks are insufficient in number. Therefore, there is no need to manually replenish the missing number of the first few blocks or to re-introduce the insufficient number of blocks to the carry-in side.

[Brief explanation of drawings]

FIG. 1 is a side view of a prior art stacking device, FIG. 2 is a front view thereof, FIG. 3 is a plan view of an embodiment of the present invention, FIG. 4 is a front view thereof, and FIG. 5 is a front view thereof. FIGS. 6A to 6F are enlarged front views of the main parts and are explanatory diagrams of the operation of the present invention. (Explanation of symbols of main parts), 1... Stacking device, 2... Frame, 8... Carry-in conveyor, 18...
... Stacking conveyor, 21 ... Clutch brake, 25 ... Frame, 26 ... Air cylinder for overall lifting, 28 ... Mounting frame, 29 ... Adsorption device, 30 ... Mounting base plate, 33 ... Individual lifting Air cylinder for use, 36...Main body (adsorber), 37
...Sucker, K...Tile, K'...Stacked lump.

Claims (1)

[Scope of Claims] 1. The tiles being intermittently conveyed on a single stacking conveyor are temporarily stopped, and the tiles that are being stopped are simultaneously adsorbed by a suction device or the like at a predetermined interval, the number of which is one less than the desired number of tiles to be stacked. After the entire lifting movement, the stacking conveyor is intermittently advanced by one tile, and only the first suction device is individually lowered to release the suction of the tile held on the tile on the stacking conveyor, and then the second tile is removed. The tiles are stacked and raised, and the stacking conveyor is moved forward intermittently by one tile.
The third suction device is individually lowered to release the adsorption, and the third tile is stacked.In the same way, the individual suction devices are continued to move up and down until the desired number of tiles are stacked. A method for stacking tiles before bundling, which is characterized in that once tiles are stacked, they are transported to the next bundling process. 2. Above a stacking conveyor that intermittently transports tiles, a suction device is provided, the number of which is one less than the desired number of tiles to be stacked, and the suction device with suction cups provided on the underside is attached to an individual lifting device such as a cylinder that raises and lowers the tiles individually, These individual lifting devices are attached to one frame, and this frame is attached to another overall lifting device such as a cylinder, and the lifting and lowering movements of these lifting devices, the suction and release movements of the suction device, and the intermittent conveyance movement of the stacking conveyor. A stacking device for stacking tiles before bundling, characterized in that the device is equipped with a control device that interlocks the tile stacking device.