JPH032781B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an article holding device used in a pallet loading device, etc., and particularly for loading articles onto a box pallet having surrounding walls on the four sides of the pallet. The present invention relates to a device that can be used in a pallet loading device for storing items, or a case storage device for storing items in a box-like case with an opening at the top.

[Conventional technology]

It can be easily thought of as a holding device for holding items in a pallet loading device that loads items into a box pallet with surrounding walls on the four sides of the pallet, or a case storage device that stores items in a box-like case with an opening at the top. Vacuum cups are used to hold items by adsorbing the top surface of the item, but depending on conditions such as the condition of the top surface of the item and the weight of the item, vacuum cups may not be able to hold the item in many cases. In such cases, it may be possible to use a holding device that holds the item by holding the item from the sides with a pair of clamping bodies, but depending on various conditions such as the weight of the item, it may not be possible to hold the item by just holding the item. In this case, in addition to the clamping body, an L-shaped support is provided on the holding device, and the lower horizontal part of this support is inserted into the lower side of the item to support the item. It is possible to do so.

[Problem that the invention seeks to solve]

However, in the case of a holding device that includes an L-shaped support in addition to a pair of clamping bodies, when separating the goods within an enclosure on a pallet or within a case, the lower horizontal portion of the support is placed against the lower side of the goods. A space is required to remove the items from the container, and this takes up a lot of space, which reduces the efficiency of loading or storage.

The present invention has been developed in view of the above points, and is intended to be used in cases where the article cannot be held by suctioning the upper surface with the vacuum cup, and the article is not sufficiently held by only being held from the side by a pair of clamping bodies. Another object of the present invention is to provide a holding device that can securely hold items without impairing loading or storage efficiency.

[Means for solving problems]

The holding device of the first invention includes a support frame 34 attached to a movable body 25 that moves, for example, from a carry-in position 2 for an item B to a loading device 3 for the item B, and this support frame 3.
A pair of clamping plates 3 provided vertically at the lower sides of both sides of the clamping plates 3, at least one of which moves forward and backward relative to the other to clamp one or more items B from the sides.
5, 36, etc., and a suction part 44 for suctioning the side surface of the item B is provided on the clamping surface of the clamping body.

The holding device of the second invention is for holding a plurality of items B more reliably, and in addition to the structure of the holding device of the first invention, there is a an insert, such as one or more insert plates 52, which are inserted and abut against the side of item B;
At the bottom of the support frame 34, the pair of clamping plates 35,
A suction section 55 is provided vertically at a predetermined interval between the clamping bodies such as 36, and suctions the side surface of the item B on the contact surfaces on both sides of the insert body in the same manner as the suction section 44 of the clamping body. It has been established.

[Effect]

The holding device of the present invention includes clamping bodies such as the clamping plates 35 and 36, or this clamping body and the insertion plate 5.
The article B is held between the sides by an inserter such as No. 2, and the side surfaces of the article B are sucked by suction parts 44 and 55 provided thereon.

〔Example〕

An embodiment of the holding device of the first invention will be described with reference to FIGS. 1 to 3.

Figures 1 and 2 show a pallet loading device, in which 1 is a horizontal base;
A carry-in position 2 and a loading position 3 for a box-shaped item B are set adjacent to each other on both sides of the top, and a carry-in position 2 on the right side is set at the tip of a carry-in conveyor 4 consisting of a roller conveyor for carrying the item B. A rectangular box pallet P having vertical surrounding walls P1 on its four sides is placed at a loading position 3 on the left side.

A column 7 is vertically installed at the rear center of the base 1 in the vicinity of the carry-in position 2 and the loading position 3. A horizontal elevating body 8 that is long in both directions, that is, in the left-right direction along the carry-in position 2 and the loading position 3, is provided so as to be able to rise and fall freely.

That is, guide rails 11 are vertically provided on both sides of the support column 7, and a plurality of rollers 12 are installed at the rear center of the elevating body 8 via a pair of supporting frames 13 on both sides facing each other. supported,
The plurality of rollers 12 are connected to each of the guide rails 11
As a result, an elevating body 8 is provided in the front part of the support column 7 so as to be movable up and down. The elevating body 8 is moved up and down by a drive mechanism including a motor 14 and the like provided at the upper end of the support column 7.

Further, in the front part of the elevating body 8, that is, on the carry-in position 2 and loading position 3 side, there is a horizontal transverse body 17 that is long in the front-rear direction, that is, in the direction intersecting the elevating body 8.
and loading position 3 so as to be movable in both directions.

That is, guide rails 20 are provided on both sides at the upper and lower parts of the elevating body 8, and a plurality of rollers 21 are mounted on a support frame 22 which is U-shaped in side view. The plurality of rollers 21 are engaged with each of the guide rails 20, whereby the elevating body 8
A transverse body 17 is provided at the front portion of the vehicle so as to be movable in both directions. The transverse body 17 is moved by a drive mechanism (not shown).

Further, a movable body 25 that surrounds the transverse body 17 and has a rectangular shape when viewed from the front is provided on the transverse body 17 so as to be movable in the front-rear direction.

That is, guide rails 28 are provided on both sides of the transverse body 17 in the front-rear direction, and a plurality of rollers 29 are pivotally supported on the movable body 25, and these rollers 29 are connected to each guide rail 28. As a result, the movable body 25 is provided on the transverse body 17 so as to be movable in the front-rear direction. The movable body 25 is moved by a drive mechanism (not shown).

A holding device 33 is provided below the movable body 25 via a vertical support member 32.
This holding device 33 includes a supporting frame 34 attached to the movable body 25 via a supporting member 32, and a supporting frame 34 attached to the moving body 25 via a supporting member 32.
A pair of parallel clamping plates 35 and 36 are provided perpendicularly to the lower portions of both sides, and the clamping plates 35 and 36 are adapted to clamp the item B from the sides.

The support frame 34 is formed into a ladder shape in which the upper parts of a pair of horizontal rail bodies 39 that are long in both directions are connected by a plurality of cross members 40. One clamping plate 35 is fixed to the lower part on the position 3 side, and the horizontal joint member 4
An air cylinder 41 attached to the lower part of the rail body 39 allows the other clamping plate 36 to advance and retreat toward the one clamping plate 35 at the outer right end of the rail body 39, that is, at the lower part on the carry-in position 2 side.

Note that the other movable clamping plate 36 on the right side
is supported by each rail body 39 of the support frame 34 so as to be movable only in the forward and backward directions thereof, and the support frame 34 is always located inside each of the clamping plates 35 and 36.

Then, each of the fixed and movable holding plates 35,
36, as shown in FIG.
4 are provided, and each suction portion 44 is configured to suction the side surface of the item B.

Each of the suction parts 44 has an enlarged diameter suction hole 47 on the clamping surface, and a ring-shaped packing 48 made of rubber or the like is attached around the suction hole 47. It is connected to an air intake device such as a vacuum pump (not shown) via an air intake path 49 bored inside the plates 35 and 36.

The operation of this pallet loading device will be explained.

The box pallets P are transported and positioned at the loading position 3 using a forklift or the like, and the articles B are sequentially transported to the loading position 2 using the loading conveyor 4 and positioned using a stopper or the like (not shown). In addition, when two items B for one stage of the loading pattern are arranged on the conveyor 4 at the carry-in position 2, the subsequent items B
When the item B at the loading position 2 is removed by the holding device 33, the loading of the subsequent item B is resumed.

Then, one stage is placed on the conveyor 4 at the carry-in position 2.
When the items B are assembled, move the elevator 8 along the support 7.
is lowered to a predetermined position, and the holding device 33 is lowered to the conveyor 4 at the carry-in position 2, and its clamping plates 35, 36 are
are positioned on both sides of the two items B for one stage on the conveyor 4, and then the air cylinder 41 is driven to shorten.
The movable clamping plate 36 on the right side is connected to the fixed clamping plate 3 on the left side.
5 and sandwich the two items B from the sides with the clamping plates 35 and 36. At the same time, an intake device such as a vacuum pump (not shown) is operated to open the intake passage 49.
The air in each suction hole 47 of the clamping plates 35, 36 is suctioned through the suction holes 47 of the clamping plates 35, 36, and the sides of the two items B are suctioned by the suction parts 44 of the clamping plates 35, 36. Holds two items B for one row on the conveyor 4.

Next, the lifting body 8 is raised to a predetermined position along the support 7, and the holding device 33 is raised from the carry-in position 2, and the article B held between the clamping plates 35 and 36 is positioned above the surrounding wall P1 of the box pallet P. After that, move the transverse body 17 along the elevating body 8 to a predetermined position on the left, and move the transverse body 1 as necessary.
7 to a predetermined position in front, the holding device 33 is moved toward the box pallet P at the loading position 3, and the two items B held between the clamping plates 35 and 36 are loaded. It is located above the front or rear of the box pallet P at stacking position 3.

Next, the elevating body 8 is lowered along the support 7, and after positioning the two items B held between the clamping plates 35 and 36 of the holding device 33 on the front or rear part of the box pallet P, the air cylinder 41 , and the right movable clamping plate 36 is set free to release the clamping of the two items B between the clamping plates 35 and 36, and at the same time, the operation of a suction device such as a vacuum pump (not shown) is stopped; The suction holes 47 of the clamping plates 35 and 36 are returned to atmospheric pressure via the air intake passages 49, and the suction of the sides of the two items B by the suction parts 44 of the clamping plates 35 and 36 is released. Then,
Two items B for one row are released onto the box pallet P at the loading position 3. Note that the lowering of the elevating body 8 at the loading position 3 is such that when loading the items B on the second and subsequent stages, the lowering of the elevator 8 at the loading position 3 is performed by
will be reduced by the height of

Next, the elevating body 8 is raised to a predetermined position along the column 7, the holding device 33 is raised from the loading position 3, and the clamping plates 35 and 36 are moved to the box pallet P.
After positioning it above the surrounding wall P1, move the transverse body 17 along the elevating body 8 to a predetermined position on the right, and if necessary, move the movable body 25 along the transverse body 17 to a predetermined position on the rear side. Moving and holding device 33
is positioned above the carry-in conveyor 4 at carry-in position 2, and furthermore, the air cylinder 41 is driven to extend, and the movable holding plate 36 on the right side is moved to the fixed holding plate 35 on the left side.
Evacuate in the direction away from.

Then, by sequentially repeating the above-described operations, the articles B are loaded in a predetermined stage within the surrounding wall P1 of the box pallet P in a predetermined loading pattern.

As explained above, in the holding device 33 of the first invention, a plurality of suction parts 44 are provided on the clamping surfaces of the clamping plates 35, 36, and the clamping plates 35, 36 can clamp the sides of the item B, and each Since the article B was held by suctioning the side surface of the article B by the suction unit 44,
If the product B can be held reliably and there is a space between the loaded product B and the surrounding wall P1 of the box pallet P, which is about the thickness of the clamping plates 35 and 36, the product can be held between the clamping plates 35 and 36. Since the loaded items B can be separated within the surrounding wall P1, no extra space is required and loading efficiency is not compromised.

In this embodiment, the holding device 33 holds two items B for one row of the loading pattern; however, the holding device 33 is not limited to this, and may hold the items one by one. , the holding device 33 is attached to the moving body 2
5 so as to be horizontally rotatable, it is possible to load the item B in a complicated loading pattern.

Further, in this embodiment, a pair of clamping plates 35, 3
6 is fixed and the other is movable, but the invention is not limited to this, and both may be movable so that they approach and separate from each other.

An embodiment of the holding device of the second invention will be described with reference to FIGS. 4 and 5.

In addition, when explaining the embodiment of the holding device of the second invention, only the parts different from the embodiment of the holding device of the first invention described above will be explained, and other detailed explanations will be omitted. The same reference numerals are given to the parts described in the embodiments of the holding device of the invention.

FIG. 4 shows an outline of the holding device 51, which is vertically provided at the lower part of the supporting frame 34 (not shown) with a predetermined interval between the pair of holding plates 35 and 36. For example, two parallel insert plates 52 are provided as insert bodies, and each of these insert plates 52 is used when the clamping plates 35 and 36 clamp, for example, three items B for one row of the loading pattern. , is inserted between the three items B so as to come into contact with the sides of the items B.

As shown in FIG. 5, each of the insertion plates 52 is provided with a plurality of suction portions 55 on both sides thereof, that is, on the contact surface that abuts the side surface of the item B, and each of the suction portions 55 Like the suction portions 44 of the clamping plates 35 and 36 described above, the side surfaces of the item B are suctioned.

Each suction portion 55 has an enlarged-diameter suction hole 58 on the contact surface, and a ring-shaped packing 59 made of rubber or the like is attached around the suction hole 58. Like the suction holes 47 of the holding plates 35 and 36, the suction holes 47 are connected to an air intake device such as a vacuum pump (not shown) via an air intake passage 60 formed inside the insertion plate 52.

Therefore, in this holding device 51, when three items B are held between the pair of holding plates 35 and 36, each item B is held between the holding plates 35 and 36 and each insertion plate 52, and this In this state, the suction portions 44 of the holding plates 35 and 36 and the suction portions 55 of the insertion plates 52 suction both sides of each item B, so that the plurality of items B can be held even more reliably. .

Note that when this holding device 51 is applied to a pallet loading device as shown in FIGS. 1 and 2, the loading direction of the item B at the loading position 2 is
When moving from the right to the left in the figure, the right side holding plate 36 and each insertion plate 52 are formed so as to be retractable upward, and each insertion plate 52 is formed so as to be freely movable slightly in both directions, that is, in the left and right direction, so that the right side is always is biased to the right.

When holding the item B, the holding device 51 is lowered to the carry-in conveyor 4 via the elevating body 8 and the right-hand holding plate 36 and each insertion plate 52 are moved before carrying in the item B. When the first item B contacts the left holding plate 35, the left insertion plate 52 is lowered to the right of the first item B, and the second item B is placed on the left insertion plate 52. When the right insertion plate 52 makes contact, lower the right insertion plate 52 to the right side of this second item B, and when the third item B makes contact with the right insertion plate 52, lower the right side clamping plate 36 to the right side of this third item B. After that, the air cylinder 41 is driven to shorten and the three items B are clamped from the sides by the clamping plates 35, 36 and the insertion plate 52, and the suction device such as a vacuum pump (not shown) is operated to remove the clamping plates. The sides of the three items B are suctioned by the suction parts 44 of 35 and 36 and the suction parts 55 of each insertion plate 52, and the three items B are separated into one row on the conveyor 4 at the carry-in position 2. Hold B.

Moreover, when the carrying-in direction of the item B at the carrying-in position 2 is the front-back direction in FIG. In other words, it is sufficient to form the structure so that it can freely move a little in the left and right direction and always bias it to the right. 51 is lowered, and the three items B are guided between the clamping plate 35 and the insertion plate 52, between each insertion plate 52, and between the insertion plate 52 and the clamping plate 36 using a guide rail or the like. When all are aligned, clamp plates 35, 3
6 and each insertion plate 52 to clamp the three items B from the sides, and each suction part 4 of the clamping plates 35 and 36
4 and each suction part 55 of each insertion plate 52 suctions the side surfaces of the three items B, thereby holding three items B in one row at the carry-in position 2.

In addition, each holding device 33, 51 explained above
The present invention is not limited to a pallet loading device that loads the items B onto a box pallet P equipped with the surrounding wall P1 as described above, but can also be applied to a case storage device that stores items in a box-like case with an opening at the top. It can also be applied to conventional pallet loading equipment.

〔Effect of the invention〕

As described above, the holding device of the present invention uses a pair of clamping bodies or an insert between the pair of clamping bodies to clamp an article from the sides, and also suctions the sides of the article with suction parts provided thereon. Therefore, items can be held reliably, especially in pallet loading equipment that loads items into a box pallet with surrounding walls on the four sides of the pallet, or case storage equipment that stores items in a box-like case with an opening at the top. When applied to a vacuum cup, it is effective when it is not possible to hold the item by suctioning the top surface, and when holding the item from the sides with a pair of clamping bodies is insufficient. Since it does not require extra space, it does not reduce loading or storage efficiency.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the holding device of the first invention, FIG. 1 is a front view of the pallet loading device, FIG. 2 is a plan view thereof, and FIG. 3 is a main part of the holding device. FIG. 4 and FIG. 5 show an embodiment of the holding device of the second invention, FIG. 4 is a schematic diagram of the holding device, and FIG. 5 is a longitudinal sectional view of the main part. be. B... Goods, 25... Moving body, 33... Holding device, 34... Support frame, 35, 36... Holding plate as a holding body, 44... Adsorption part, 51... Holding device,
52...Insert plate as an insert body, 55...Adsorption portion.

Claims (1)

[Scope of Claims] 1. A support frame attached to a movable body, and at least one of the support frames provided vertically at the bottom of both sides of the support frame, and at least one of the support frames is driven forward and backward relative to the other to move one or more items from the side. A holding device comprising: a pair of clamping bodies that clamp the article; and a suction part that sucks a side surface of the article on a clamping surface of the clamping bodies. 2. A supporting frame attached to a movable body, a pair of clamping bodies provided vertically at the bottom of both sides of the supporting frame, at least one of which moves forward and backward relative to the other to clamp a plurality of items from the sides; One or more inserts are provided vertically at the bottom of the support frame at a predetermined interval between the pair of clamping bodies, and are inserted between the articles and abut against the side surfaces of the articles when the articles are clamped. A holding device, characterized in that suction portions for suctioning side surfaces of the article are provided on the clamping surface of the clamping body and the contact surfaces on both sides of the insert body.