JPS6344648B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a feeding device for feeding separate sheets and a top frame (including a top sheet) to two pallet loading devices arranged in parallel.

[Technical background of the invention]

When loading relatively small items such as bottles or cans using a pallet loading device, a separate sheet is placed on top of the items each time the items are stacked, and a separate sheet is placed between the items in each tier. After intervening and loading on the designated stage,
A top frame (sometimes a top sheet) is placed on top of the top item.

At this time, the separate sheets and the top frame are placed on the product either automatically or manually, but the separate sheets and the top frame are generally fed by a forklift or the like.

[Problems with background technology]

As mentioned above, in order to supply separate sheets and top frames using a forklift, etc., a space is required for the forklift to run, but when multiple pallet loading devices are installed in parallel, Since it is impossible to take up space due to the layout, it has been desired to improve the method of supplying the separate sheets and the top frame.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and is capable of supplying separate sheets and top frames transported by a forklift or the like from one location to two pallet loading devices installed in parallel. The purpose is to

[Summary of the invention]

The present invention provides a supply device for supplying separate sheets and a top frame to two parallel pallet loading devices, in which an unloading conveyor is provided for unloading pallets loaded with items from the parallel pallet loading devices. A carry-in conveyor for separate sheets and a top frame is installed at a position slightly higher than the carry-out conveyor, facing the carry-out conveyor from the outside on one side. A relay conveyor that can be raised and lowered is installed in a row, and in front of this relay conveyor, a lifting platform is installed that moves up and down between the unloading conveyors of the two pallet loading devices installed in parallel, and that connects to the relay conveyor when descending. Separate sheet standby conveyors are provided in front and rear of the raised position of the platform, that is, above each output conveyor, and the separate sheets are supplied to these conveyors via the carry-in conveyor, relay conveyor, and lifting platform, and the lifting platform is raised and lowered. A movable support frame for the top frame through which the lifting platform can pass in the vertical direction is provided between slightly below the position and one side thereof, and the top frame is fed to the lifting platform along the same path as the separate sheet and raised. After that, move the support frame below the lifting platform, and then
The top frame is supplied between the separate sheets by lowering the elevator platform, and when the separate sheets are being supplied, the support frame is moved to one side and placed on standby.

[Embodiments of the invention]

The feeding device of the present invention will be specifically explained based on the embodiments shown in the drawings.

Figures 1 and 2 show two parallel pallet loading devices _1a , _1b , to which separate sheets and top frames are fed by the feeding device of the invention.
One device 1 _a is shown with a solid line, and the other device 1 _b only has its outline shown with a two-dot chain line.

Each of the above-mentioned pallet loading devices 1 _a and 1 _b is for loading relatively small items such as cans onto pallets, and each of the items is transported from an incoming conveyor 2 using a top plate chain to a net belt using a net belt. After being conveyed to the storage conveyor 3 and arranged in a dense manner on the storage conveyor 3, a predetermined number of sheets corresponding to one stage are sequentially conveyed to the layer section 4 at the front end of the storage conveyor 3. There is.

On the other hand, the pallets are fed one by one from a pallet storage and supply device 5 provided below the carry-in conveyor 2 to a pallet conveyor 6 located below, and this pallet conveyor 6 transports the pallets below the accumulation conveyor 3. It is conveyed and conveyed below the stowage position 7 in front of the layer section 4.

Then, the pallet conveyed below the stowage position 7 is lifted up to the stowage position 7 by the lifting platform 8, and here, the items for one level of the layer section 4 are stacked on this pallet. , the separate sheet S supplied to the separate sheet supply position 9 in front of the stacking position 7 is placed by the worker on the landing 10 on top of the one-level items stacked on the pallet. It has become like this, and then,
The pallet is lowered by one level by the lifting platform 8, and one level of items is stacked again, and the separate sheet S is placed on top of this one level of items, and this operation is repeated. When the goods are loaded onto the pallet at a predetermined stage, the above-mentioned pallet loading devices _1a , _1b are placed above the goods on the topmost stage.
The top frame T supplied to the top frame supply position 11 between the separate sheet supply positions 9 of
is placed on the landing 10 by a worker.

At the stowage position 7, the items are loaded onto a predetermined tier via the separate sheet S, and a top frame T is placed above the items on the top tier.
When the goods are placed, the lifting platform 8 is lowered, and the pallet loaded with goods (hereinafter referred to as the actual pallet) is
The sheet is transported to the lower front of the separate sheet supply position 9 by a transport conveyor 12 using two chains.

Next, a description will be given of a supply device that supplies the separate sheets S to the separate sheet supply positions 9 and the top frame T to the top frame supply position 11.

As shown in FIGS. 3 to 6, this supply device includes a carry-in conveyor 21 provided toward the carry-out conveyor 12 from the outside of the carry-out conveyor 12 of one pallet loading device _1a , and A relay conveyor 22 is provided in front of the carry-in conveyor 21 and intersects with the carry-out conveyor 12 so as to be movable up and down.
In front of this relay conveyor 22, there is a lifting platform 23 that moves up and down between the two carry-out conveyors 12, and in front and rear of the raised position of this lift table 23, that is, in both separate sheet supply positions 9 above both carry-out conveyors 12. A standby conveyor 24 is provided so as to be movable between the standby conveyor 24 and slightly below the raised position of the lifting platform 23, that is, between the top frame supply position 11 and one side thereof, that is, above between the tip ends of both the unloading conveyors 12. Support frame 25
It has

The carry-in conveyor 21 has a plurality of rollers 32 arranged in two rows on an upper part of a frame 31, and its conveyance surface is set slightly higher than the conveyance surface of the discharge conveyor 12.

The relay conveyor 22 is connected to the unloading conveyor 1.
A shaft 34 is rotatably mounted horizontally on the inside of the conveyor 2, and the side frame 12 on the inside of the carry-out conveyor 12 is attached to the shaft 34.
_A frame 36 rotatably supports a frame 36 in which a _recess 35 is _formed for
A roller 37 is pivotally supported at the bottom of the roller 6.
is supported by a cam 39 attached to a rotatable shaft 38, and an endless chain 40 is wound around both sides of the frame 36 via a plurality of sprockets 41, and the shaft 38 is rotated by an air cylinder 42. As a result, the frame 36 rotates around the shaft 34 through the engagement of the cam 39 and the roller 37 and moves up and down, and each of the endless chains 40 moves up and down from the front end of the sprocket 41.
_a , the above-mentioned shaft 34 to which this sprocket 41 _a is attached
The conveyor surface of this relay conveyor 22 is driven by a motor 43 via a
It is set to be at the same height as the conveyance surface of the carry-in conveyor 21 when it is raised.

The elevating table 23 has a plurality of rollers 4 on an elevating frame 45 that is elevated and lowered by an elevating mechanism (not shown).
6 are arranged in three rows on a shaft rack, and the 46 rows of rollers in the center are shorter than the 46 rows of rollers on both sides. The height is set to be the same as the conveyance surface of the relay conveyor 22 at the time.

A stopper 47 is provided in front of the lowered position of the lifting table 23 and is supported by the main body of the other pallet loading device _1b .

Each standby conveyor 24 has an endless chain 50 on both sides of a frame 49 and a plurality of sprockets 51.
Each endless chain 50 is wound around each sprocket 5 with a stopper 52 provided at the outer end.
A sprocket 51 _a at the outer end of the standby conveyor 24 is driven by a motor 54 through a shaft 53 to which the sprocket 51 is attached, and the conveyance surface of each standby conveyor 24 is The height is set to be the same as the conveying surface of the rollers 46 of the lifting table 23 in .

Note that the actual pallets carried out by the respective carry-out conveyors 12 pass below this standby conveyor 24.

The support frame 25 is formed into a substantially U-shape in plan view, and has a plurality of rollers 57 pivotally supported on the outer sides of both sides 56, and a support plate 58 is provided on the inner side. The roller 57 is movably supported by engaging with the rail 59, and both ends of a chain 61 wound along the rail 59 via a plurality of sprockets 60 are attached to both sides 56 of the chain 61. By driving this chain 61 with a drive mechanism (not shown), the rail 5
It is designed to move along 9.

Then, by this supply device, the separate sheet S and the top frame T are delivered to each separate sheet supply position 9 and top frame supply position 11.
When supplying pallets to one pallet loading device 1 _a
In this step, the actual pallet is carried out by the conveyor 12, avoiding the time when the actual pallet is carried out by the carrying out conveyor 12.

First, when supplying separate sheets S; move the support frame 25 to one side of the top frame supply position 11 as shown by the two-dot chain line in FIG. A conveyor 21 carries in pallets P stacked with S.
is placed on the roller 32 of.

The front end of the pallet P placed on the rollers 32 is located above the chain 40 of the relay conveyor 22 beyond the outer chain of the delivery conveyor 12,
When the chain 40 of the relay conveyor 22 in the ascending state is rotated clockwise as shown in FIG. 6, and is stopped at a predetermined position by a stopper 47, as shown in FIG.

Next, the lifting platform 23 is raised as shown by the two-dot chain line in FIG. 6, and in this state, when the worker on the landing 10 shown in FIG. 1 pushes the pallet P forward or backward, The end of the pallet P is hooked on the chain 50 of the standby conveyor 24, and the chain 5
When the pallet P is rotated outward, the pallet P is drawn into the standby conveyor 24, stopped by the stopper 52, and positioned at a predetermined position of the separate sheet supply position 9.

Also, when supplying the top frame T; as in the case of the separate sheet S mentioned above,
A pallet P in which a large number of top frames T are stacked is placed on the rollers 32 of the carry-in conveyor 21, this pallet P is drawn into the relay conveyor 22, pushed out onto the lifting table 23, and the lifting table 23 is raised.

In this state, the support frame 25 is moved from the position indicated by the two-dot chain line in FIG. 5 to the position indicated by the solid line, that is, the position below the elevated platform 23 as shown in FIG. 23, and move the lifting platform 23 to the support plates 58 on both sides of the support frame 25.
At the same time, the pallet P is passed through the support plate 5.
8 and left on the top frame supply device 11.

Incidentally, the relay conveyor 22 is kept lowered except when the separate sheets S and the top frame T are being supplied so as not to obstruct the conveyance of actual pallets by the conveyor 12.

In addition, when the top frame T on the pallet P at the top frame supply position 11 runs out and the top frame T is supplied again;
The empty pallet P above is lifted up, the support frame 25 is then moved to the position shown by the two-dot chain line in FIG. 5, and the lifting platform 23 is then lowered.

The rear end of the empty pallet P on the lowered lifting platform 23 is located on the chain 40 of the relay conveyor 22, and as shown in FIG. , the empty pallet P is drawn into the relay conveyor 22 and then pushed out onto the input conveyor 21.

Then, this empty pallet P is transferred to conveyor 2.
1, the pallet P on which a large number of top frames T are stacked is transferred to the rollers 3 of the conveyor 21.
2 and feed it to the top frame supply position 11 in the same manner as described above.

Also, when the separate sheets S on the pallet P at the separate sheet supply position 9 run out and the separate sheets S are supplied again; the support frame 25 supporting the top frame T is moved to the position shown by the two-dot chain line in FIG. Move to.

In this state, after ascending the elevator platform 23, the standby conveyor 24 supporting the empty pallet P is
When the chain 50 is rotated inwardly, the empty pallet P is pushed onto the rollers 46 of the lifting table 23.

Then, in the same manner as described above, the elevator platform 23 is lowered,
An empty pallet P is drawn into the relay conveyor 22 and pushed out onto the carry-in conveyor 21. After this empty pallet P is carried out from the carry-in conveyor 21, a pallet P on which a large number of separate sheets S are stacked is placed on the roller 32 of the carry-in conveyor 21. and feed it to the separate sheet supply position 9 in the same manner as described above,
Next, after lowering the lifting platform 23, the support frame 25 supporting the top frame T is moved to the position shown by the solid line in FIG. 5, that is, the top frame supply position 1.
Return to 1.

In this embodiment, the rollers 32 of the carry-in conveyor 21 and the rollers 46 on the lifting platform 23 are not driven, but they may be driven.

Furthermore, when three or more pallet loading devices are installed in parallel, this can be handled by adding a relay conveyor 22, a lifting platform 23, a standby conveyor 24, and a support frame 25.

〔Effect of the invention〕

As described above, according to the present invention, when supplying separate sheets and top frames to pallet loading devices arranged in parallel, one
Separate sheets and top frames can be supplied to their respective predetermined positions from separate conveyors, which eliminates the need for running space for forklifts, etc., does not restrict the layout of pallet loading equipment, and saves installation space. In addition, the supply device itself can be made smaller because the conveyance path for the separate sheet and the conveyance path for the top frame are shared.

[Brief explanation of the drawing]

The figure shows one embodiment of the feeding device of the present invention, and the first
The figure shows a plan view of two pallet loading devices to which this feeding device is applied, FIG. A side view, FIG. 5 is a plan view showing a portion of the supply device from the lifting platform to each standby conveyor and a support frame, and FIG. 6 is a side view thereof. 1 _a , 1 _b ... Pallet loading device, 12 ... Carrying-in conveyor, 21 ... Carrying-in conveyor, 22 ... Relay conveyor, 23 ... Lifting platform, 24 ... Standby conveyor, 25 ... Support frame, S ... ...Separate sheet, T...Top frame.

Claims (1)

[Scope of Claims] 1. A device for supplying separate sheets and a top frame to two pallet loading devices arranged side by side; A carry-in conveyor for separate sheets and a top frame is provided facing the carry-out conveyor from one side of the carry-out conveyor, and a relay conveyor that can be raised and lowered is installed in front of the carry-in conveyor, intersecting with the carry-out conveyor. A lifting platform is provided in front of the conveyor to move up and down between the unloading conveyors in the two pallet loading devices arranged in parallel, and standby conveyors for separate sheets are provided in front and behind the elevated position of the lifting platform. A supply device characterized in that a support frame for a top frame, through which a lifting platform can pass vertically, is movably provided between a slightly lower side of the lifting position and one side thereof.