JPH0427132B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION -Field of Industrial Application- The present invention relates to a pool device equipped with a loading mechanism for stacking and unloading empty cans.

-Prior Art- In the field of manufacturing various substances such as petroleum products and other chemical products, the empty cans used to store these substances usually require a huge amount of pool space, as well as labor and time. Complicated manual work is performed.

In response to this situation, a method and apparatus for mechanically stacking and unloading barrels (barrel-shaped containers) was proposed in Japanese Patent Publication No. 48-39427. In this method and device, barrels carried in by a conveyor are mechanically stacked and unloaded in multiple rows and stages in a pool area, and the barrels are stacked by lifting and lowering a conveyor with a lifter mechanism. When stacking, the positions of the upper and lower barrels are shifted by a length corresponding to the radius, and a holding cam attached to the pool rack is projected to hold the bottom plate part of the upper barrel. When further unloading is to be carried out, the lowermost barrel is lifted up by the ascending and descending transport conveyor, the holding cam is removed, the right and left misalignment of the holding cam is corrected, the lowermost barrel is lowered, and then unloaded. I try to let them do it. A feature of this proposal is that the bottom plate of the barrel is lifted by a holding cam that is inserted into the space between the barrels created by shifting the positions of the barrels between the upper and lower stages.

-Problems to be Solved by the Invention- However, in the above-mentioned proposed barrel loading and unloading method and device, the stacking and unloading of barrels is carried out by raising and lowering a conveyor having a lifter mechanism and by simultaneously raising and lowering the aforementioned holding cam. This is done in combination with opening and closing, but shifting the position of the barrel between the upper and lower stages to hold the bottom plate of the barrel with a holding cam is done by a pusher on the inlet side of the barrel supply passage and a receiver on the outlet side. Since positioning is performed using members, all of the lowest barrels are subject to loading and unloading when stacking and unloading the barrels. Therefore, this is inconvenient when the stacking or unloading of cans is interrupted due to transportation reasons or other reasons, resulting in a fraction of cans. Waiting on the conveyor is unstable, which is particularly problematic for large and heavy cans such as drums. Furthermore, it cannot be used in the case of rectangular cans where no space is created even if the upper and lower cans are shifted relative to each other because the holding cam is not engaged.

-Object of the Invention- Therefore, an object of the present invention is that there is no need to shift the positions of the upper and lower empty cans in order to hold the empty cans, and the present invention can be applied to empty cans such as square cans, and can be applied to drum cans. To obtain an empty can pooling device which can stably hold even large and heavy empty cans such as 1, and can load and unload even a fractional number of empty cans.

-Structure of the Invention- In order to achieve this object, the present invention provides a transport conveyor that has an elevating function and is capable of loading and transporting empty cans and faces below a rack that is opened vertically, and also has a support member for the rack. In an empty can pool rack that supports empty cans by the engagement of the supporting member, the supporting member is attached to a plurality of upper stopper claws that can move forward and backward to support the upper collar of the empty can, and the bottom of the empty can. It is composed of a plurality of lower stopper claws that can be supported and moved back and forth, and holds two parallel can rails at the bottom thereof that can support a plurality of empty cans at the bottom of the empty cans and have opposing intervals that allow the conveyor to move up and down. This is a proposal to do so.

-Example- Hereinafter, an empty can pool device according to an example of the present invention will be explained with reference to FIGS. 1 to 4 a, b, and c.

In FIGS. 1 and 2, a pool rack 1 includes four pool frames 3 fixed to a frame 2 and extending vertically upward, and a space surrounded by the pool frames 3 and opened at the top and bottom is provided with a space which will be described later. This device stacks and supports empty cans 4 using a set of supporting members. Furthermore, in this embodiment, in order to avoid an unstable supporting state due to accidental displacement of the empty cans 4, four can guides are arranged vertically on the outer periphery of the holding position of the empty cans 4 in the pool frame 3. was obtained using pool slot 3. In the figure, one unit is a pool rack 1 that can hold 5 tiers of 10 cylindrical empty cans 4 in the horizontal direction.
A six-rail pool rack arrangement is shown, configured as a lane.

Bearings 6R, 6 attached to the pool frame 3, etc. along the length direction of each pool rack 1 are provided on both sides of the lower part of the pool rack 1.
A pair of upper and lower stopper shafts 8 and 9 are provided which are pivotally supported by L, 7R and 7L. An upper stopper claw 10 and a lower stopper claw 11 are fixed to these stopper shafts 8 and 9, respectively, as supporting members for the empty can 4, and stopper shaft drive cylinders 12 and 13 are fixed to the support frame 2 of the pool rack 1, respectively. It is linked to the tip of the rod, and the drive cylinder 1
The stopper shafts 8 and 9 are adjusted according to the expansion and contraction of the rods 2 and 13.
rotates, and the upper stopper pawl 10 and lower stopper pawl 11 fixed to the stopper shafts 8 and 9 are made openable and closable, that is, movable into and out of the pool rack 1. The upper stopper claw 10 is the upper collar 1 of the empty can 4.
The lower stopper claw 11 supports the bottom of the empty can 4. Therefore, the interval between the upper stopper claw 10 and the lower stopper claw 11 has a length that is approximately the same as or slightly shorter than the height of the empty can 4 when both the stopper claws 10 and 11 protrude into the pool rack 1. are doing.

Below both sides of the pool rack 1 are a pair of can rails 16 which are held on the pedestal 2 by holding legs 15.
are provided in parallel. The can rail 16 extends along the pool frame 3 in the length direction of the pool rack 1, that is, in the direction of the lane.
Two stripes having an L-shaped cross section and having a length between 1 and 2 are opposed in parallel. The opposing distance is made shorter than the diameter of the empty can 4, so that the can rail 16 can support the bottom of the empty can 4. As will be described later, all of the empty cans 4 in the pool rack 1 are to be handled above the level of the can rail 16.

A conveyor 17 is provided at a position facing below the pool rack 1. The conveyor 17 is a chain conveyor, and has approximately the same width as the width of each pool rack 1, and has approximately the same length as the pool rack 1. has. The conveyor 17 is mounted on a lifter mechanism 19 that is movable up and down by the drive of a hydraulic cylinder 18. Same lifter 1
9 is further mounted on a traverser frame 21 having running wheels 20 at its lower part and integrally constitutes a traverser 22, and this traverser 22 is made able to run on a rail 23 laid perpendicular to the pool rack crane.

A carry-in conveyor 24 common to all pool rack cranes is provided on the can carry-in side of the pool rack 1, and the carry-in conveyor 24 stops empty cans 4 to be fed onto the can rails 16 of each lane at a predetermined position. A can stopper 25 that is vertically retractable is attached to each lane along with a drive cylinder 26. A carry-in pusher 27 is provided on the carry-in side of the pool rack 1 across the carry-in conveyor 24, and the pusher 27 moves back and forth by driving a drive cylinder 28.
Empty cans on the carry-in conveyor 24 are fed into the pool rack 1, that is, onto the can rail 16, and loaded.

On the can carry-out side of the pool rack 1, a carry-out conveyor 29 common to each lane is provided in a direction perpendicular to each lane, and the carry-out conveyor 29 and the conveyor 17 are connected to each other.
A can opener conveyor 30 and its drive motor 31 interposed therebetween are mounted on the traverser frame 21 together with the lifter 19. The can opening conveyor 30 has a drive motor 31 that operates at a speed approximately twice the speed of the can transport conveyor 17 to facilitate can separation.

Since the present invention is configured as described above, when empty cans 4 are stacked in pool rack 1, empty cans 4 are first moved by carry-in conveyor 24 to a predetermined can stopper 25.
It is transported to the position and stops. Next, the empty can 4 is pushed onto the can rail 16 in the pool rack 1 by the pusher 277 and loaded onto the can rail 16. FIG. 3a shows the state at this time. When ten empty cans 4 are arranged on the can rail 16, the transport conveyor 17 of the traverser 22 is raised by the lifter 19, and the empty cans 4 are placed on the can rail 16, and the conveyor 17 is further raised to the highest position. When the empty can 4 rises to the highest position, the upper stopper claw 10 is moved as shown in FIG. 3b.
is closed and applied to the upper collar 14 of the empty can 4, and at the same time, the lower stopper claw 11 is also closed and applied to the bottom surface of the empty can 4, so that the empty can 4 is stably supported in the vertical position. Then, the conveyor 17 descends as it is,
Repeat the above operation again. When the stacking of one lane is completed in this way, the operating position of the can stopper 25 of the carry-in conveyor 24 is changed, the position of the traverser 22 is moved, and empty cans 4 are stacked in the next lane.

When the empty cans 4 are unloaded from the pool rack 1, the process is as follows. The traverser 22 runs on the unloading lane and stops. Can rail 1
When there is an empty can 4 on the can rail 16, the conveyor 17 rises as shown in FIG. 4 is carried out, and further carried out to a predetermined position by the drive of the carry-out conveyor 29. After carrying out the empty cans 4 on the can rail 16, when further unloading the empty cans 4 in the pool rack 1, the transport conveyor 17 rises to the highest position and carries out the empty cans 4 in the first stage in the pool rack 1. Push up slightly. Next, the lower stopper claw 11 that supported the bottom of the empty can 4 in the first stage opens, and at the same time the upper stopper claw 1 that supported the upper collar 14 of the empty can 4 opens.
0 is also opened, resulting in the state shown in FIG. 4b. Further, the conveyor 17 descends with the empty cans 4 on the first stage loaded, but after the upper collar 14 of the empty cans 4 on the first stage passes the upper stopper claw 10,
The upper stopper pawl 10 is closed again and engages the upper collar 14 of the second stage empty can 4, and the second stage empty can 4 is temporarily supported only by the upper stopper pawl 10. As the transport conveyor 17 continues to descend, the empty cans 4 in the first and second stages are separated, and at the time of separation, the empty cans 4 in the second stage are separated.
A lower stopper claw 11 is engaged with the bottom surface of the empty can 4 in the tier to stably support the empty can 4. Conveyor 17
The empty cans 4 placed thereon stop at a height just before the can rails 16, resulting in the state shown in FIG. 4c. Next, the transport conveyor 17 is driven to transport the empty cans 4 onto the transport conveyor 29. The same operation is repeated thereafter, and the traverser 22
Move to other lane and repeat the same operation.

Furthermore, in the above-mentioned pool apparatus, loading and unloading of one to several empty cans is also possible. In other words, when loading a pool rack 1 from above each can rail 16 or unloading from the same pool rack 1 onto each can rail 16, a fractional number of empty cans 4 are placed on the can rail 16. This process can be carried out even when a fractional number of empty cans 4 are located in the pool rack 1 of one lane.
There is no need to worry about dealing with a fractional number of empty cans 4.

Incidentally, the cooperative operation of stacking and unloading the empty cans 4 of this apparatus can be easily performed by known control means such as the use of a limit switch or a timer.

In the above embodiments, drums or similar cylindrical cans have been shown, but not only drums, but closed cans usually have collars on the top and bottom of the manufacturing process, so this mechanism of the present invention is suitable. can be applied virtually regardless of the shape of the empty can.

Also, from the conveyor 17 to the can opener conveyor 30
The speed of the can opener conveyor 30 was set to approximately twice that of the transport conveyor 17 when empty cans 4 were transferred to the cans. It can be carried out while being measured.

Although the example shows the case where the pool rack 1 has 6 rails, it is possible to further increase the number of lanes if necessary, and by using the traveling traverser 22, stacking and unloading can be easily performed on any pool rack crane. can. It is also possible to simultaneously load and unload empty cans 4 in different lanes.

Furthermore, a bypass conveyor is provided that can move the empty cans 4 from the carry-out conveyor 29 side to the carry-in conveyor 24 side, and the carry-out conveyor 29 can be used as a forward/reverse conveyor to return the empty cans 4 on the carry-out conveyor 29 to the carry-in conveyor 24. If you do this,
Empty cans 4 can also be transshipped within the pool rack 1.

-Effects of the Invention- As is clear from the above description, according to the present invention, the two support members, the stopper pawl that supports the upper collar portion of the empty can and the stopper pawl that supports the bottom surface of the empty can, are connected to the lifter mechanism. In combination with a transport conveyor, we have provided a can rail that serves as a waiting area for empty cans, so there is no need to shift the positions of the upper and lower empty cans, and it can be used in multiple tiers regardless of the type of can, such as square cans or drum cans. Moreover, it is possible to stably pool empty cans. Also,
In the empty can pool device of the present invention, it is possible to load and unload a fractional number of empty cans, so there is no need to deal with the fractional number of empty cans that have arrived.

[Brief explanation of drawings]

Fig. 1 is a front view of an empty can pool device according to an embodiment of the present invention, Fig. 2 is a plan view of the same device, and Figs. FIGS. 4A, 4B, and 4C are views for explaining the operation of stacking cans; FIGS. 4A, 4B, and 4C are views corresponding to FIG. 3, and are views for explaining the operation of unloading empty cans; FIGS. 1... Pool rack, 4... Empty can, 10... Upper stopper claw, 11... Lower stopper claw, 14... Upper collar, 16... Can rail, 17... Conveyor.

Claims (1)

[Claims] 1. A transport conveyor that has an elevating function and is capable of loading and transporting empty cans is placed under a rack with vertical openings, and a support member is attached to the rack, and empty cans are loaded by engaging the support member. In the pool rack for empty cans, the supporting member is composed of a plurality of movable upper stopper claws capable of supporting the upper collar of the empty can and a plurality of lower stopper claws movable back and forth capable of supporting the bottom of the empty can, A pool device for empty cans, characterized in that two parallel can rails are held at the bottom thereof and have opposing intervals that can support a plurality of empty cans at the bottoms of the empty cans and allow the transport conveyor to move up and down.