JPS5812168B2 - Pallet loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pallet loading device for loading bagged items such as cement, fertilizer, feed, milled rice, etc. onto pallets.

Conventionally, in a device for loading bagged items onto a pallet, the bagged items are placed side by side on a carriage, the carriage is moved with the items locked with a stopper, and the items on the carriage are dropped. When the bag is transferred to a pallet waiting at the bottom, as the carriage moves to one side, the items in the bag deform in the direction of carriage movement, and the contents tend to become uneven in the bag. Therefore,
When items are stacked on a pallet in multiple stages, the items tend to bend, and items packed with powder, granules, etc. in bags tend to fall apart.

The present invention has been made in view of these points.
To prevent the items from shifting in the moving direction of the carriage when transferring the items onto the pallet, to prevent the items from sagging on the pallet, and to further reliably prevent lateral shifting between the upper and lower items, This allows for safe loading.

Next, one embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a frame, and a carry-in conveyor 2 consisting of a belt conveyor or the like is provided on one side of the frame 1, and a carry-in section 3 is connected in front of the carry-in conveyor 2. A stopper 4 is provided at the front end of this loading section 3.
A pusher 6 is provided on one side of the loading section 3 and is moved forward and backward by the cylinder device 5.

A feed conveyor 7 consisting of a roller conveyor or the like is connected to the other side of the carry-in section 3 relative to the pusher 6, and a turn device 8 is provided at the middle and side of the feed conveyor 7, and at the front end of the feed conveyor 7. A stopper 9 is provided at the portion so as to be movable up and down.

A conveyance table 10 is connected in front of the feed conveyor 7, and a stopper 11 is placed on one side of the table 10. At the rear of the table 10, a conveyor table 10 is provided which is moved forward and backward by chain drive mechanisms 12 on both sides. One pusher 13 is provided.

A partial layer air table 14 is provided in series in front of the conveyance table 10, and guides 15 are provided on both sides of the air table 14.

Further, sprocket wheels 16 are mounted on the frame 1 at front and rear positions on both sides of the layer part air table 14, and the front and rear sprocket wheels 1 on both sides
An endless chain 17 is passed between the endless chains 217 on both sides, and a pusher 18 and a stopper 19 of the sweat 2 are placed between the endless chains 217 on both sides.
are attached at multiple locations in close proximity.

Further, an electric motor 20 provided on the frame 1 is connected to the sprocket wheel 16 of the section A through a transmission mechanism 21 such as a chain mechanism.

A drop port 22 is formed in the frame 1 at a position in front of the layer air cable 14.The frame 1 is provided with rails 23 along both sides of the drop port 22. A carriage 24 that opens and closes the mouth 22 is provided so as to be movable forward and backward via wheels 25 on both sides.

As this carriage 24, a roller type, plate type, air table type, etc. are used.

Further, sprocket wheels 26 are mounted on the frame 1 at front and back positions of the rails 23 on both sides, and a chain wheel 27 is hung between the front and rear sprocket wheels 26 on both sides, and both ends of the chain wheel 27 are connected to the carriage 2.
It is connected to the front and rear of 4.

Further, a forward/reverse motor (not shown) provided on the frame 1 is connected to the front sprocket wheel 26 via a transmission mechanism (not shown) such as a chain mechanism.

Then, this electric motor is driven in forward and reverse directions to rotate the sprocket wheels 26 on both sides via the transmission mechanism, rotate the chinos 2γ on both sides, move the carriage 24 in the front and rear directions, and open and close the drop port 22 of the frame 1. It is supposed to be done.

A stopper 30 for the front end of the drop port 22 is provided on the frame 1 so as to be movable forward and backward by a cylinder device 28.

Further, a side guide 31 is provided on one side of the drop port 22 at the top of the frame 1, and
A side lock 33 that is moved back and forth by a cylinder device 32 is provided on the other side of the drop port 22 .

Further, a lifting device 41 is provided below the drop port 22.

This elevating device 41 has a frame 1 provided with a guide in the vertical direction, and an elevating table 43 that is movable up and down along this guide. It is designed to be raised and lowered indirectly through such means as

A pressing device 51 is provided above the drop port 22 .

This pressing device 51 has rails 5 on both upper sides of the frame 1.
2 are provided in parallel, and a movable table 53 is supported on the rails 52 on both sides so as to be movable forward and backward, and a base frame 57 is attached to the movable table 53 on both sides with a hook.

A plurality of cylinder mounting portions 58 are formed at the center of the base frame 57 at predetermined intervals in the front and rear direction, and a preflex air cylinder 59 is attached to each cylinder mounting portion 58, and each cylinder 59 piston rod [60
Bar-shaped preflexors 61 oriented in the horizontal direction are attached in parallel to the lower ends of each.

Then, the cylinder 59 is actuated to advance and retreat the piston rod 60 to raise and lower the preflexa 61, and the movable table 53 is advanced and retreated along the rail 52 to adjust the position of the base frame 57. There is.

Further, a pallet conveyor 71 such as a chain conveyor is provided below the drop port 22 of the frame 1, and a pallet supply device (
(not shown) is provided, and an output conveyor (not shown) such as a roller conveyor is connected to the other end.

P is a pallet, and B is an item filled with powder, granular materials, etc. in a synthetic resin bag such as polyethylene or vinyl, a kraft paper bag, or a cloth bag.

Next, the operation will be explained.

First, one empty pallet P is supplied from the pallet supply device, conveyed to below the drop opening 22 of the frame 1 by the pallet conveyor 11, the lifting device 41 is activated to raise the lifting platform 43, and the pallet P is transported to the lower part of the drop opening 22 of the frame 1. The pallet P is lifted up from above the conveyor γ1 and positioned directly below the drop port 22.

At the same time, the carriage 24 is positioned above the drop port 22 and the drop port 22 is closed by the carriage 24, and the lifting platform 43 is positioned at the top as described above, and the pallet P supported on the lifting platform 43 is moved to the drop port. 22, it is positioned at the lower part of the carriage 24, the side locks 33 are opened to the outside, and each preflexor 61 is pulled up to the uppermost position.

Then, the packed items B are sequentially carried from the carry-in conveyor 2 onto the carry-in section 3 and supported, and stopped at the stopper 4. Furthermore, the articles B are pushed by the pusher 6 and transferred onto the feed conveyor 7. In addition to conveying the article B by the infeed conveyor 7, the turning device 8 is operated to change the direction of the article B as needed, and the stopper 9 is stopped and opened as appropriate, and the article B is conveyed onto the conveyor table 10. While supporting it, it is stopped by a stopper 11, and a predetermined number of items B are sequentially arranged.

Next, when one row of items B is lined up on the table 10, the items B are pushed by the first pusher 13 and a part of the layer is transferred onto the air table 14.

Then, the first pusher 13 returns and the next item B
When the articles B are carried onto the table 10, this operation is repeated to arrange the articles B in a plurality of rows on the layered partially edible 14 and arrange them in a predetermined pattern.

Subsequently, when the first stage of items B are lined up on the air table 14, the electric motor 20 rotates the chinos 17 on both sides via the transmission mechanism 21, and the items B are pushed by the second pusher 18. and transfer it onto the carriage 24.

In this state, a stopper 19 adjacent to this second pusher 18 stops the next item B to be sent.

Further, another second pusher 18 and a stopper 19 are waiting on the upper side of the chino 17 in which it rotates.

When the items B for one stage are arranged on the carriage 24, the second pusher 18 and the stopper 30 are pressed as described above.
At the same time, the side lock 33 is activated to move the item B inward, and the item B is positioned between the side guide 31.

Further, the cylinder 59 is actuated to lower each preflexor 61 to press and hold the item B on the carriage 24, thereby forming a recess at the prefixer pressing position of the item B.

Next, the cheno 27 on both sides is rotated by an electric motor via an electric mechanism, the carriage 24 is retracted forward from above the drop opening 22, and the article B on the carriage 24 is dropped and supported on the pallet P.

At this time, the item B on the carriage 24 is pressed and supported from above by each prefixer 61, and falls directly below at that position without moving together with the carriage 24.

Next, the cylinder of the lifting device 41 is operated to raise the lifting platform 43.
is lowered by one step of item B.

At this time, as shown in FIG. 4, since the articles B are partially recessed and stacked, the concave and convex portions of the upper and lower articles B fit together to prevent lateral displacement.

Next, each prefuser 61 is raised and returned to its original position, and the chino 2γ is rotated in the opposite direction so that the carriage 24 faces the drop port 22 again.

In this way, one level of item B is loaded onto the pallet P, and this operation is repeated to sequentially load multiple levels of item B onto the pallet P. When the predetermined level is loaded, the lifting platform 43 is lowered to the lowest position. , the pallet P is transferred onto the pallet conveyor 71 and carried out.

According to the present invention, since the items on the carriage are transferred onto the pallet while pressing the top surface of the items with a plurality of parallel bar-shaped prefixers facing in the horizontal direction, the items can be loaded onto the pallet in an orderly manner. Furthermore, the pressure of each prefixer causes a part of the item to be dented, so that the upper and lower items transferred onto the pallet fit into each other unevenly, and as a result,
It is possible to reliably prevent lateral shifting between the upper and lower items, preventing the items from being tilted overall, and improving safety during loading.
It is possible to ensure safety during transportation, and since each prefixer is arranged parallel to each other and facing in the horizontal direction, and each is independent rod-shaped, it is extremely easy to form a recess in the item. There is no need to make the pressing force of the prefixer excessively strong, so there is no fear that the product will be damaged.

[Brief explanation of drawings]

Fig. 1 is a plan view showing one embodiment of the pallet loading device of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a partially cutaway side view thereof, and Fig. 4 is an enlarged view of the main parts. It is. 1...Frame, 22...Drop opening, 2
4... Carriage, 43... Lifting platform,
61... Prefusa, P... Palette,
B... Goods.

Claims (1)

[Claims] 1 a frame, a drop opening formed in this frame,
A carriage that opens and closes this drop port, a lifting platform that is provided below the carriage so as to be able to rise and fall while supporting the pallet, and a platform that is provided above the drop port so that it can be moved up and down and that supports the items supported on the carriage. A pallet loading device characterized by comprising a plurality of horizontally oriented parallel rod-shaped preflexors that press the upper surface and concave the upper surface of the articles.