JPH04354726A - Cargo handling device - Google Patents

Abstract

PURPOSE:To smoothly pick up cargoes without disturbing an arrangement pattern in a cargo handling device, in which cargoes piled on a pallet, etc., are taken out by a desired number of steps to be reloaded to another place. CONSTITUTION:A step lowering part 1 is provided in which plural cargoes W are arranged before and behind and right and left in each step and located in a piled condition. A carriage 5 is provided which is having a top carriage roller 10a upwardly rotation-driven on the front end, and is horizontally advance-or retreat-driven to the upper side of the step lowering part 1 to pick the cargoes W up on the upper surface. In a cargo handling device having the constitution above mentioned, a stopper 25, supporting the cargoes W at height capable of passing the carriage 5 under the height, is retreatively provided on a carriage enter side position above the step lowering part. One step part of the plural cargoes W arranged before and behind and right and left is controlled so as not to be scattered with the stopper 25.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo handling device that takes out a desired number of cargo stacked on a pallet or the like and transfers them to another location.

0002

2. Description of the Related Art Conventionally, there are cases in which it is necessary to transfer cargo stacked on pallets or the like one by one to another pallet. For example, in a canned beverage manufacturing factory, cardboard boxes containing canned beverages are stacked on pallets according to the type of beverage, and the desired number of boxes are taken out from these pallets and arranged on pallets for different shipping destinations.

An apparatus shown in FIG. 5 has been proposed as an apparatus capable of efficiently processing such cargo. This device is
A lifting platform 50 on the unloading side and a lifting platform 51 on the loading side for loading cargo W in a stacked state are installed side by side, and a carriage 5 is installed between them above.
2 is made to run. The carriage 52 is
It has a large number of freely rotatable carriage rollers 53 and a top carriage roller 54 that is rotationally driven. According to this cargo handling device, the top carriage roller 54
While rotating the carriage 52 upward as shown by arrow a,
By advancing the top carriage roller 54
comes into contact with the side surface on the cargo W side and scoops the cargo W onto the carriage roller 53 by friction.

0004

However, in the conventional load processing apparatus described above, when the arrangement pattern of the loads W for one stage is irregular as shown in the plan view of FIG. 6(A), for example, When the cargo W is scooped up onto the carriage roller 53 of the carriage 52, if the arrangement of the cargo W becomes disordered as shown in the plan view in FIG. 6(B), the cargo W is then moved to the loading platform 51 There was a problem that sometimes they could not be aligned.

That is, for example, as shown in a plan view in FIG. 6(A), there are cases in which the bags are arranged in a pattern in which two bags W in the middle are sandwiched between three bags W on each side. When scooping up one stage of luggage W arranged in this way onto the carriage 52, the arrangement pattern is separated into two blocks B1 and B2 as shown in the plan view in FIG. 6(B). If the cargo W on the carriage 52 is disorganized, even if you try to align it to the original arrangement using an alignment device (not shown) before transferring the cargo W on the carriage 52 to the lifting platform 51 on the loading side, the block B2 side It is not easy to fit the cargo W2 forming the intermediate protrusion into contact with the cargo W1 forming the intermediate concave portion on the block B1 side, and it is not possible to arrange them in the original arrangement pattern.

[0006] An object of the present invention is to provide a load handling device that can smoothly scoop up loads without disturbing the arrangement pattern.

[0007]

[Means for Solving the Problems] The structure of the present invention will be explained with reference to FIG. 1 corresponding to an embodiment. This load processing device includes a step-down section (1) for arranging a plurality of loads (W) in each tier in the front, back, left and right, and arranging these loads (W) in a stacked state; top carriage roller (
A reciprocating carriage (5) having a reciprocating table (10a) which is driven horizontally to the upper side of the step-down part (1) and scoops up the cargo (W) to the upper surface is provided. A stopper (25) is provided at the table entry side position. Stopper (
25) regulates the load (W) at a height that allows the carriage (5) to pass below, and is provided so as to be retractable.

[0008]

[Operation] According to this configuration, a plurality of loads (W) for one stage arranged in the front, rear, right and left directions are supported by the stopper (25) provided at the entrance side position of the carriage. In this state, as the carriage (5) moves forward below the stopper (25), the top carriage roller (10a) comes into contact with the side of the load (W) and uses friction to move the load (W) onto the carriage (5). scoop it up. At this time, since the cargo (W) is regulated by the stopper (25) and prevented from retreating, the arrangement pattern is not disturbed during scooping up, and the transfer of the cargo (W) is performed smoothly.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 4. As shown in FIG. 2, this load processing device has a descending section 1 and a stacking section 2 arranged side by side, and a carriage 5 that reciprocates on the rails 4 of the main body frame 3 between them.
It has been established. The step-down section 1 includes a carry-in conveyor 6 that carries in a pallet P1 on which loads W are stacked, and a carriage 5 that lifts the carried-in pallet P1 and transports the loads W on each tier.
The platform is equipped with a lifting platform device 7 that sequentially raises the platform to a height level of .

[0010] The stacking unit 2 includes an elevator device 9 that lowers one stage at a time when the cargo W is loaded from the carriage 5 with an empty pallet P2 on it, and a carry-out conveyor 8 that carries out the pallet P2. It is something.

The carriage 5 has a large number of carriage rollers 10 constituting a roller conveyor, and the carriage 5 has a plurality of carriage rollers 10 constituting a roller conveyor.
is scooped up one stage at a time and lowered into the stacking section 2. A scooping alignment device 11 that assists the carriage 5 in scooping the cargo and a load height detection device 12 are provided at the top of the stacking section 1. A dropping and aligning device 13 is provided to assist in unloading and align the loads W.

The carriage 5 has a plurality of carriage rollers 10 attached between a pair of carriage side frames 5a, 5a, and each carriage side frame 5a has a rack provided on the upper frame portion 3a of the main body frame 3. It is installed on a shaped rail 4 so that it can run freely on gear-shaped running wheels (not shown). Among the carriage rollers 10, the two top carriage rollers 10a located at the top on the step-down section 1 side are rotatably driven by a motor 14 and a chain transmission mechanism 15, and the remaining carriage rollers 10 are rotatable. be.

The top carriage roller 10a is coated with a rubber such as urethane rubber or vinyl rubber in order to increase the frictional force on the outer periphery. At the end of the carriage 5 on the stacking section 2 side, a sliding plate 16 having an inclined surface on which the cargo W slides down is provided extending between both cart side frames 5a, 5a.

Advance/retreat drive device 17 for carriage 5 (not shown)
is the sprocket 18,1 placed on the main body frame 3.
Endless chain 20 hanging between 9 and sprocket 18
, 19 in forward and reverse directions, and an endless chain 20 is connected to the carriage 5 by a connecting member 22.

The scooping alignment device 11 includes an upper stopper 23 and a lower stopper 2 located at the end of the main body frame 3.
4, and an alignment stopper 25 facing the upper stopper 23.
It consists of The upper stopper 23 and the lower stopper 24 are for contacting the uppermost and second tier loads W, respectively, and are each supported by the main body frame 3 so as to be movable forward and backward, and are driven forward and backward by cylinders 26 and 27. The upper stopper 23 has an inclined surface at the upper part of the front surface to facilitate scooping of cargo by the carriage 5. The alignment stopper 25 is provided at the lower end of an elevating cylinder 30 fixed to an advancing/retracting cylinder 29 attached to the support frame 28, and the alignment stopper 25 is moved up and down by driving the elevating cylinder 30. In addition, by driving the advance/retreat cylinder 29, the cargo W
The advancing and retreating positions are adjusted.

The scraping alignment device 13 is composed of a scraping stopper 31 located above the travel path of the carriage 5, a front stopper 32 facing this, and a pair of side stops (not shown) facing left and right. Ru. Drop-off stopper 3
1 is attached to a support base 34 via a rotating arm 33 so as to be able to open and close up and down, and is driven to open and close by a cylinder (not shown). The front stopper 32 is supported by the main body frame 3 so as to be able to move forward and backward, and is driven forward and backward by a cylinder (not shown).

The lifting platform devices 7 and 9 support a pair of parallel lifting arms 35 so as to be able to rise and fall freely along a vertical rail 37 of a guide column 36. It is something that lifts up. The suspension rope 39 is connected to a connecting plate 40 that interconnects the base ends of both lifting arms 35.
One end is connected to the guide column 36, and the other end is connected to the guide column 36 by a connecting member 41.
is fixed. The movable pulley 38 is connected to the T of the lifting rod 42.
The feed screw mechanism 4 is attached to both sides of the head part.
3 and is driven up and down by a lifting motor 44.

The operation of the above configuration will be explained. In FIG. 3A, the cargo W on the pallet P1 on the side of the step-down section 1 is made of, for example, a cardboard box containing canned drinks or bottled drinks. The pallets P2 on the side of the stacking section 2 are pallets prepared for each shipping destination. The pallet P1 of the step-down section 1 is
When the load W on the top tier reaches the height of the carriage 5 as shown by the chain line, it is detected by the load height detection device 12 and the lift is stopped.

After this, as shown in FIG. 3(B), the upper stopper 23 and the lower stopper 24 advance, and the alignment stopper 25 descends. That is, the upper stopper 23 is applied to one side of the topmost cargo W, the lower stopper 24 is applied to one side of the second-tier cargo W, and the alignment stopper 2
5 is lowered to a position where there is some gap ΔL with respect to the other side of the uppermost cargo W, as shown in FIG. 4(A). In this case, the gap ΔL is set to be smaller than the discrepancy dimension B in which the intermediate item W and the items W before and after the items fit into each other with a difference. In addition, at this time, the alignment stopper 2
5 is adjusted by the forward/backward cylinder 29 in accordance with the detected value by detecting the stacking width L of the cargo W with an appropriate detection means.

Next, the carriage 5, which was waiting on the side of the stacking section 2, moves toward the descending section 1 while driving the top carriage roller 10a to rotate upward. When the top carriage roller 10a hits the side of the topmost load W, the load W is pinched between the upper stopper 23 and the top carriage roller 10a, and is scooped up by the frictional force of the upward (arrow a) rotation of the top carriage roller 10a. . Luggage W
and the alignment stopper 25, there is a gap ΔL as described above.
is provided, so that the loads W are sandwiched between the upper stopper 23 and the alignment stopper 25 with some clearance, and each load W is prevented from being slightly fluctuated during the load scooping operation by the top carriage roller 10a. The degree of freedom is given, and the cargo scooping operation can be carried out smoothly.

[0021] During this scooping operation, the topmost cargo W
Even if the alignment stopper 2 is disturbed and is divided into two blocks B1 and B2 as shown in FIG. 4(B), for example,
5, the interlocking between the intermediate protrusion on the block B2 side and the intermediate recess on the block B1 side will not disengage. In other words, the cargo W does not come apart any more than in the state shown in FIG. 4(B). During this time, in the stacking section 2, the empty pallet P2 is lifted up to a height near the lower surface of the carriage 5 by the lifting table device 9 and is kept on standby.

In this way, when one stage of cargo W is loaded on the carriage 5, the upper stopper 23 and the lower stopper 24 are returned, and the alignment stopper 25 is retracted upward.
A reciprocating table 5 travels toward the stacking section 2 and carries the cargo W. In the stacking section 2, an appropriate detector (not shown) detects that the carriage 5 has traveled to a predetermined position, and the scraping and alignment device 1 detects that the carriage 5 has traveled to a predetermined position.
At the same time, the front stopper 32 of No. 3 is advanced, the knock-off stopper 31 is closed, and the side stoppers (not shown) on both sides are advanced. By this operation, the loads W on the carriage 5 are arranged in the original arrangement pattern as shown in FIG. 4(A). In this alignment operation, even if the arrangement pattern of the packages W on the carriage 5 to be sent is disordered, the arrangement pattern shown in FIG.
As shown in B), since the two blocks B1 and B2 are prevented from coming out of engagement, it is possible to reliably return to the original arrangement pattern. In this state, the carriage 5 passes under the knock-off stopper 31 and travels toward the step-down section 1, so that the cargo W on the carriage 5 is stopped by the shake-off stopper 31 and placed on the pallet P2. be brushed off.

While the carriage 5 is located in the stacking section 2, the lifting platform device 7 in the step-down section 1 rises by one step of the cargo W, and the upper and lower stoppers 23, 24 are raised in the same manner as described above. advances, and the alignment stopper 25 waits in a lowered state. Therefore, when the carriage 5 moves toward the step-down section 1 to shake off the cargo W5, by continuing to travel, the next step of the cargo W on the step-down section 1 is removed from the carriage. It is scooped up by 5. In this way, the carriage 5 is reciprocated to take out the desired number of loads W from the pallet P1 of the step-down section 1,
They can be stacked on the pallet P2 in the stacking section 2.

[0024]

[Effects of the Invention] This invention has a step-down section for arranging a plurality of packages in each tier in the front, back, left and right, and arranging these packages in a stacked state, and a top carriage roller at the front end that is driven to rotate upward. However, in a load processing device equipped with a carriage that scoops up the cargo in the step-down section, a stopper is provided at the entrance side of the carriage above the step-down section, so that the load for one step arranged in the front, rear, left, and right directions is The cargo is regulated by the stopper and scooped onto the carriage without greatly disturbing the arrangement pattern. For example, even if items are arranged in a pattern that creates unevenness between them, the arrangement pattern is prevented from becoming disordered to the extent that the unevenness does not become disengaged, that is, it can be easily returned to the original alignment when reloading. can do.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram showing the configuration of a load processing device that is an embodiment of the present invention.

FIG. 2 is a cutaway front view of the entire load processing device.

FIG. 3 is an explanatory diagram of the operation of the load processing device.

FIG. 4 is a plan view showing a cargo arrangement pattern during a scooping operation of the cargo processing device.

FIG. 5 is a schematic front view of a conventional example of a load processing device.

FIG. 6 is a plan view showing the cargo arrangement pattern during the scooping operation of the cargo processing device.

[Explanation of symbols]

Claims (1)

[Claims] Claims: 1. A step-down device comprising: a step-down portion for arranging a plurality of items in each step in a row, front and back, left and right, and arranging these items in a stacked state; and a top carriage roller rotatably driven upward at the front end. In the load processing device, the carriage is provided with a carriage that is horizontally driven forward and backward to above the step-down section and scoops up the cargo onto an upper surface, wherein the carriage passes below the carriage at a position on the entry side of the carriage above the step-down section. A cargo handling device characterized in that a stopper for regulating the cargo at a possible height is retractably provided.