JPH07215464A - Loading device - Google Patents

Abstract

PURPOSE:To provide a loading device capable of shifting an article to be carried on a platform such as a pallet from a carrying machine without any labor of a worker, and stacking the article in an arranged manner including the case where articles are of the shape to be easily hooked. CONSTITUTION:A loading device to stack an article (r) to be carried on a pallet P is provided with a conveyor 10 to load and carry the article (r) to be carried, a lifter 50 to change the relative height between the conveyor 10 and the pallet P, and a movable truck 40 capable of changing the horizontal relative position between the conveyor 10 and the pallet P and separating the pallet from the conveyor in the horizontal direction at the same speed as the feeding speed of the conveyor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
Conveyed goods carried by various conveyor machines such as trolleys,
The present invention relates to a loading device that moves the machines to a loading platform such as a pallet, aligns them, and stacks them.

[0002]

2. Description of the Related Art In recent mass production factories, it is almost common sense to automatically convey parts and finished products by means of conveyors, chutes or self-propelled carts. But,
Regarding transfer of objects transported to a predetermined position by such transport machinery from the relevant machinery to another,
It is often not fully automated. In particular, the work of aligning and stacking the conveyed items on the specified loading platform is not easy to mechanize, so it depends entirely on the manual work of the worker, or while performing the rough work on the machine. In most cases, the staff assists.

For example, a roll of a resin film (a roll of a wide film) is packed in a long rectangular paper box before shipment, and a large number is temporarily stacked on a pallet for convenience of transportation. However, even in that case,
In order to stack the paper boxes containing the rolls on the pallet while aligning them, generally manual work is indispensable. Since a long paper box or the like can be easily aligned by bundling a plurality of bands, a commercially available band binding machine is often used. However, at present, there is no suitable automatic device that appropriately carries out the work of stacking the bundled paper boxes at the correct positions on the pallet. Therefore, even in such a case, it is automated, for example, to transfer the goods on the pallet etc. by the force of the machine from the side of the transfer machinery, but the position adjustment for stable and correct stacking is done. The method is taken such as the staff doing it by their own hands.

[0004]

In the case where there are a large number of articles to be conveyed, if an operator successively picks up the articles from the conveying machines and stacks them at a predetermined position, the work is troublesome and the burden on the operator is not light. This is even more so when the load is heavy. It goes without saying that such manual work leads to an increase in manufacturing cost.

Further, even if the machine is caused to carry out a general transfer operation (transfer) as described above, and the worker only adjusts the stacking position, the above-mentioned inconvenience cannot be fundamentally solved. Absent. Since a worker is always required for the work, the cost disadvantage does not change, and it cannot be said that the work is light when the load is heavy. In addition, if it is possible to slide another conveyed item on the pallet or on the lower stage to adjust the position, etc., if it is easy to get caught and cannot be slid due to the shape, It becomes necessary to lift the transported object once, and the work becomes more burdensome.

The present invention has been made in view of the above circumstances, and an object thereof is to transfer a pallet from a carrier machine without causing a worker's hand at all, including a case where the objects are easily caught by each other. It is an object of the present invention to provide a loading device capable of transferring, aligning, and stacking conveyed articles on a loading platform such as the above.

[0007]

The loading device of the present invention comprises:
A loading device that stacks items to be conveyed (items to be conveyed by various conveying machines) on a loading platform such as a pallet. A) A conveyor that conveys and conveys items (this conveyor may be a unique conveyor) However, it may be a conveyor that also serves as a part of the above-mentioned transfer machinery), B) means for changing the relative height between the conveyor and the loading platform, and C) changing the horizontal relative position between the conveyor and the loading platform so that the The relative moving means that can be horizontally separated at the same speed as the feeding speed of-is arranged.

With regard to this loading device, as described in claim 2, a) the conveyor of the above A) is replaced with a low friction conveyor belt (a resin belt or a rubber having a lubricant layer formed on the surface thereof). It is recommended to use a belt conveyor made of, for example, a product made from a product, etc.), and to arrange a lifting type stopper for the conveyed goods on the path of the conveyed goods by the conveyor.

For this purpose, further, E) it is preferable to provide a means for binding the conveyed articles (such as the band binding machine) on the side of the conveyor (right and left with respect to the feeding direction). .

In this case, as in claim 4, F) it is also possible to provide a left and right moving means for reciprocating the article on the conveyor to the side of the conveyor.

According to the fifth aspect of the invention, G) it is preferable to connect the upstream conveying machines so that the feed direction at the upstream end position of the conveyor is perpendicular to the feed direction of the conveyor.

[0012]

The loading device of the present invention stacks the articles conveyed by the upstream conveying machines on the platform in the following manner. In other words, the conveyor in A) above receives the conveyed goods from the upstream conveying machines. At this stage, since the conveyed products are sent one by one, it is assumed that the conveyed products are placed at a predetermined position on the conveyor in a predetermined posture. When the conveyor also serves as a transporting machine from the upstream side, this delivery may not be performed in some cases, and in that case, the transported article is on the conveyor while maintaining a predetermined state when loaded.

By the relative movement means of the above C), the horizontal positions of the end portion (downstream end portion) of the conveyor and the loading platform are made to coincide with each other. The conveyor may be moved horizontally, but the carrier may be moved as well.

The height relationship between the conveyor and the bed is adjusted by the relative height changing means in the above B). In the case of stacking articles to be stacked over a plurality of stages, the height difference between the conveyor and the loading platform is reduced in the unloaded stage, and the height difference is increased as the number of stacked stages increases. This is because the conveyor is not brought into contact with the loading platform or the stacked conveyed objects, and the conveyed objects are lowered from a position which is not too high above them. Such height change may be performed on the side of the conveyor or on the side of the loading platform.

While the conveyed product is being conveyed by the conveyor, the conveyor and the loading platform are horizontally separated by the relative movement means of c) at the same speed as the conveying speed. This allows
Since there is no horizontal relative movement between the load and the load, the load is dragged or pushed horizontally from directly above the load or the lower load stacked on it. It is taken down without any trouble.

As described above, according to the loading apparatus of the present invention, it is possible to transfer the articles to be transported from the transporting machines onto the loading platform and stack them without the operator having to do anything. Since it is possible to lower the transported object from the position that is not too high as described above and without shifting it horizontally like the above,
The posture and transfer position of the conveyed object determined by the above will not be disturbed. In other words, in this case, as long as the conveyed goods are accurately placed on the conveyor and the positional relationship between the end of the conveyor and the loading platform can be appropriately determined by the conveyors, the conveyed goods can be stacked so as to smoothly form an aligned state. .

According to the second aspect of the present invention, even if the goods cannot be placed at a predetermined position / posture in the above case, the goods can be piled up on the cargo bed in an accurate aligned state. . This is because the conveyor in A) is a belt conveyor that uses a low friction belt as in a), and the conveyed material stopper is arranged on the path as in D). That is, even if the conveyed product is in an inappropriate posture or position on the conveyor, the conveyed product hits the stopper (or hits the stopper) by feeding the conveyor and raising or lowering the stopper along the path to make it function. This is because the posture and the position of the transported object are corrected. Since the conveyor belt has low friction, even if it is a heavy object, the conveyed object will move smoothly while slipping, and its position will be corrected. There is nothing to do. If you stop the conveyed items by hitting the stoppers and stop the other conveyed items as shown in parentheses above, correct the position / posture of multiple items including them, and then close them once on the conveyor. It can also be aligned. After the position and the like are corrected in this way, the stopper is moved up and down to cancel its function, and the conveyed items are lowered on the loading platform in accordance with the above-mentioned items, whereby the conveyed items can be stacked as described above.

A loading device according to claim 3 and the following claims:
This is particularly convenient when the conveyed product is long. First, in the case of the apparatus according to the third aspect, it is possible to bind a plurality of conveyed objects before loading. That is, the above (claim 2
The function of the stopper is as described in (1), and the long conveyance is placed on the conveyor so that the longitudinal direction is to the left and right, which is the right angle to the feeding direction of the conveyor in a) (that is, the conveyance is performed). Is conveyed in the width direction), the articles are first gathered on the conveyor in a dense alignment with the ends of the width in contact. Then, by using the bundling means in the above E) in a state where the conveyed items are gathered, a plurality of conveyed items on the conveyor can be properly bound. Since the binding means is provided on the side of the conveyor, it is easy to bind the conveyed articles collected as described above near the ends in the longitudinal direction.

In the above-mentioned apparatus of the third aspect, when the articles to be conveyed are relatively short and do not exceed the width of the conveyor, it is usually difficult to bundle the articles without special binding means. However, the device of claim 4 is also effective in such a case. This is because the left and right moving means shown in F) moves the conveyed objects to a position where bundling is easy even with the normal bundling means, that is, a position where the end portion projects laterally of the conveyor.
When the bundling is completed in the state where the conveyed items are moved left and right, the left and right moving means returns the conveyed items to the original position on the conveyor.

When the conveyor feeds a long conveyed product in the width direction as described above, the movement path (range occupied by the movement locus) of the conveyed product becomes wide, and the conveyor occupies a substantially large space. If not only the conveyor but also the transport machinery on the upstream side sends the transported material in that way,
The related equipment occupies a huge space in the factory as a whole and is not efficient. In that respect, the device of claim 5 is
As in (G), since the conveyors on the upstream side of the conveyor are connected at a right angle, the conveyors feed the conveyed articles in the longitudinal direction, and the movement route of the conveyed articles is narrow. Therefore, if the above-mentioned conveyor that conveys a conveyed product in the width direction is kept to the minimum necessary length, considerable space saving can be achieved in a factory or the like.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is introduced in FIGS.
The figure shows a loading device that automatically rolls a roll of agricultural (vinyl house) vinyl film, which is packed in a paper box one by one, on a pallet as a conveyed product r. Each paper box containing rolls has a length of 1 to 3
In m, one side of the cross section is 100 to 200 mm, and the weight is more than 10 kg.
Is. FIG. 1 is an overall plan view of the loading device 1, etc.,
2 is a side view of the apparatus 1 taken along the line II-II in FIG. 1, and FIG. 3 is a view taken along the line III-III in FIG.
4 is an explanatory view showing a stacked state by the conveyor 30, and FIG. 5 is a view taken along the line V-V in FIG.

1 and 2, the loading apparatus 1 includes a conveyor 30 and a moving carriage 40 thereof, a lifter 50 on which a pallet P can be placed and which can be moved up and down, and a binding machine attached thereto. 60 and left and right moving means 70 (FIG. 5) and the like. Conveyor 30
On the left side of the figure, that is, on the upstream side of the apparatus 1, a conveyer conveyor 10 that conveys a conveyed object r (a film roll is placed in a paper box as described above) from a process portion such as film winding / packing. And a take-up machine 20 for delivering the conveyed product r to the conveyor 30. A conveyed object r sent in the direction of an arrow in FIG.
The conveyor 30 collects a plurality of the conveyed objects r and binds them by the binding machine 60, and also stacks them on the pallet P in a plurality of stages by operating the moving carriage 40 and the lifter 50. The pallets P are stacked for the convenience of shipping by a forklift or the like.

The conveyer conveyor 10 is a belt conveyor, but in the vicinity of the loading device 1, short conveyors 11, 12, 13.1, arranged in series as shown in FIG.
It is configured as a set of four. The take-up machine 20 is installed so that the conveyor arm 21 moves up and down in the gaps between the conveyors 11, 12, 13, and 14. That is, the take-off machine 20 includes four conveyor arms 21 each having a thin conveyor belt wound in a direction orthogonal to the feeding direction of the conveyor 10, and an elevator 22 for moving them up and down. The conveyor arm 21 is raised and lowered from a position lower than the surface (position indicated by the solid line in FIG. 2) to a position higher by several tens of millimeters than the conveyance surface of the conveyor 30 described later (position indicated by the virtual line in FIG. 2).

The conveyor 30 of the loading device 1 has four conveyor belts 31 hung in parallel with the direction of the conveyor arm 21 as shown in FIG. 1, their pulley shafts 32 shown in FIG. 5, and The transmission belt 33, the drive shaft 34, the clutch 35, the drive belt 36, a motor (not shown), and the like are included, and the whole is mounted on the moving carriage 40 shown in FIG. The movable carriage 40 has wheels 4
1 and its drive source, it can move forward and backward from the position of the solid line shown in FIG. 1 to the position of the imaginary line. In particular, when retreating to the original position of the solid line, the retreating speed of itself is controlled to be the same as the feeding speed of the conveyor belt 31. Although the conveyor belt 31 is a rubber belt, a resin coating having a low coefficient of friction (“Nitoflon adhesive tape, No. 9” manufactured by Nitto Denko Corp. is formed on the entire surface thereof.
03uL ”adhesive layer) is formed. In addition, as shown in FIGS. 2 and 3, above the conveyor 30, there are provided a lifting / lowering type conveyance stopper 37 and a scraping tool 38 that can also be lifted and moved forward and backward (see the arrow in FIG. 3). is doing.
When the stopper 37 descends as shown by the phantom line in FIG. 3, the stopper r hits the conveyed object r sent by the conveyor 30 to adjust its direction (longitudinal direction is aligned with the longitudinal direction of the pallet P), and conveyed later. The items including the object r are once gathered on the conveyor 30. The scraping tool 38, when binding the plurality of conveyed articles r by the binding machine 60, makes the gathered state dense and enables reliable binding.

The binding machine 60 is a means for bundling and banding the conveyed objects r gathered on the conveyor 30 by the stopper 37 and the scraper 38. Conveyances r, which were individual paper boxes containing film rolls, are bundled into a single conveyance R. Binding machine 60
1 is arranged on each side of the conveyor 30 (on the left and right sides with respect to the feeding direction, and on the upper and lower sides in FIG. 1) and installed on a moving carriage (not shown). I tried to move closer.

However, when the length of the conveyed object r is short enough not to exceed the entire width of the conveyor 30, the conveyed object r still on the conveyor 30 (the end portion thereof does not protrude from the conveyor 30) is removed. Conveyor 3 is difficult to bind
The left and right moving means 70 as shown in FIG. The moving means 70 grabs a plurality of conveyed objects r gathered on the conveyor 30 together from above, and guides the guide shaft 7 above.
A traverser 71 that moves to the left and right along 2 is mainly configured. Further, in order to smooth the movement of the conveyed object r due to it, a roller 73 is also attached so as to vertically project and retract with respect to the conveying surface of the conveyor 30.

The lifter 50 shown in FIG. 2 is a means for placing a pallet P on which the articles R are stacked and changing the height thereof. When the transported articles R are first transferred onto the pallet P, the pallet P is positioned immediately below the conveyor 30 and the pallet P is appropriately lowered each time the transported articles R are stacked on the pallet P. By doing this, as shown in Fig. 4, the loading surface will always be directly underneath, and
Since the conveyor 30 is thin and has a small dimension in the height direction, the drop when transferring the conveyed product R from the conveyor 30 is only several tens of millimeters. For the purpose of accurately determining the stacking position of the conveyed products R on the pallet P, a positioning stopper 55 is provided at a position above the pallet P on the lifter 50 as shown in FIG. When the conveyor 30 advances to the foremost position, the stopper 55 is lowered to the height of the conveyed product R of the conveyor 30 so as to hit the end of the conveyed product R, and the stacking position (end part of the conveyed product R on the pallet P). Make sure that the positions are aligned.

The loading device 1 configured as described above operates as follows as a whole. That is, 1) The conveyed objects r are conveyed one by one to the position of the take-up machine 20 by the conveyor 10. Since the conveyer 10 feeds the conveyed object r in the longitudinal direction, the width required for conveyance is narrow, and therefore the space occupied in the factory is relatively small even if the conveying distance is long. As for the stop position, an appropriate stopper or limit switch (neither of which is shown) is set in advance so that the center of the length of the conveyed object r is on the center line of the take-up machine 20 and the conveyor 30. To do. When the transported object r is forcibly stopped by the stopper, it is preferable to form a resin film having the same low friction as the above on the conveyor belt of the transportation conveyor 10.

2) In the take-up machine 20, all the conveyor arms 21 are lifted to pick up the conveyed object r from the conveying conveyor 10, and then the conveyor belt is circulated so that the conveyed object r can be conveyed. Move to the top.

3) While being placed on the conveyor belt 31 of the conveyor 30, the conveyed product r is fed until it hits the conveyed product stopper 37 at the lowered position.

4) By repeating the above 1) to 3),
A certain number (for example, 5 to 10) of the conveyed articles r are collected on the conveyor 30 (the number of one stage stacked on the pallet P).
During that time, the conveyed product r stopped by the stopper 37 slides on the conveyor belt 31, but since the resin film is formed on the surface of the belt 31 and the friction coefficient is low, the weight of the conveyed product r is small. Continues to slide smoothly regardless of.

5) When a certain number of conveyed objects r are gathered on the conveyor 30, the scraping tool 38 is lowered and moved to bring all the conveyed objects r close together (see FIG. 3), and the binding machines 60 are arranged from the left and right sides.
The band B is wound in the vicinity of the end of the conveyed product r by making them close to each other (see FIG. 5). If the transported object r is short,
If it does not exceed the entire width of the conveyor 30 (interval for four conveyor belts 31) as shown in the vicinity of the center, the left and right moving means 70 collectively move the conveyed objects r to the left and right, and the binding machine 60. Unite at. In this way, the stacked one-stage conveyed goods r are made into a united conveyed goods R.

6) The stopper 37 and the scraping tool 38 are raised (retracted), and the moving carriage 40 is driven to advance the conveyor 30 to above the pallet P on the lifter 50.

7) After lowering the positioning stopper 55 to the position shown in FIG. 4, the entire conveyor 30 is retracted while circulating the conveyor belt 31 in the proper direction (direction in which the conveyed product R is fed forward). (See Figure 4). At this time, since the circulation speed and the retreat speed are matched,
Can be smoothly stacked on the pallet P or on the conveyed product R without shifting back and forth (of course left and right). Since the stopper 55 is also used as described above, the end portions of the conveyed articles R in the stacked state are neatly aligned.

8) The height of the pallet P is lowered by the lifter 50 by the height each time the conveyed items R are stacked one by one, and by repeating the above, a predetermined number of conveyed items R are ordered on the pallet P. Pile up.

9) The stacked pallets P are carried out and shipped by a forklift or the like, but a new position is determined on the lifter 50 (for example, the position of the stopper 55 in FIG. 4 may be used as a reference). Place the pallet P and wait for the articles R to be stacked.

Note that, apart from the above example, if, for example, the conveyed objects r are placed on the pallet P one by one and the respective positions are successively set and changed by the stopper 55 or the like, the stacking method is arbitrary. It is also possible to have a shape (pyramidal shape, etc.). If you use a stopper 55 with high rigidity and strong positioning force,
When the conveyor 30 is retracted in the step 7), it is not always necessary to forcibly circulate the conveyor belt 31. In other words, if the clutch 35 is disengaged to allow the belt 31 to circulate freely, the belt 31 can be circulated in the forward direction at the same speed as the retreat speed of the conveyor 30 by the reaction force received by the stopper 55. 30 will leave the pallet P horizontally at the same speed as the circulation.

[0038]

According to the loading apparatus of the present invention, it is possible to transfer the articles to be carried from the transporting machines onto the loading platform and pile them up without any troubles of the workers. At that time, the posture and the transfer position of the transported object are not disturbed.

According to the loading device of the second aspect, it is possible to correct the position / posture on the conveyor and always stack the goods on the loading platform in an accurate aligned state.

The loading device of claim 3 is capable of binding a plurality of long objects to be carried out before loading.
It is possible to make the stacked state more stable.

According to the apparatus of the fourth aspect, even when the conveyed articles are relatively short and do not exceed the width of the conveyor, the conveyed articles can be bound by the general binding means.

With the apparatus according to the fifth aspect, it is possible to effectively save space in a factory or the like.

[Brief description of drawings]

FIG. 1 is an overall plan view of a loading device 1 according to an embodiment of the present invention.

FIG. 2 is a side view of the device 1 taken along the line II-II in FIG.

FIG. 3 is a view taken along the line III-III in FIG.
It is a side view centering on.

FIG. 4 is an explanatory view showing a stacked state by a conveyor 30.

5 is a view taken along the line VV in FIG.

[Explanation of symbols]

 r ・ R Conveyed goods P Pallet (cargo bed) 1 Loading device 30 Conveyor 31 Conveyor belt 37 Conveyed goods stopper 40 Moving carriage (relative moving means) 50 Lifter (relative height changing means) 60 Binding machine (binding means) 70 Left and right transportation

Claims (5)

[Claims] Claim: What is claimed is: 1. A loading device for stacking conveyed goods on a carrier, a conveyor for carrying conveyed goods, a means for changing the relative height between the conveyor and the carrier, and a horizontal relative position between the two. And a relative moving means capable of horizontally separating the two from each other at the same speed as the conveyor feeding speed. 2. The loading according to claim 1, wherein the conveyor is a belt conveyor that uses a low-friction conveyor belt, and an elevating type conveyor stopper is disposed on a conveyor path of the conveyor. apparatus. 3. The loading device according to claim 2, further comprising a binding means for binding the articles, which is provided on a side of the conveyor. 4. The loading device according to claim 3, further comprising a left-right moving means for reciprocating the articles on the conveyor to the side of the conveyor. 5. The loading apparatus according to any one of claims 1 to 4, wherein upstream transport machines are connected so that the feed direction is perpendicular to the feed direction of the conveyor at the upstream end position of the conveyor.