JPH082712A - Automatic separating and taking up method of sheet shape material and device therefor - Google Patents

Abstract

PURPOSE:To separate and take up a sheet shape material one by one surely by making at least two decompression suckers to suck the extreme top sheet shape material and raising other decompression suckers after raising firstly the sucker made to suck the peripheral part of the sheet shape material out of those decompression suckers. CONSTITUTION:A suction part 5 whose decompression suckers 3, 3' are installed on its both ends facing downward is installed vertically movably by a main cylinder 2 provided on the tip part of a turning arm 1 and one decompression sucker 3' is supported vertically movably by a suction cylinder 4. When the sheet shape material 8 is taken up, after positioning the decompression sucker 3' on the peripheral part of the extreme top material among the piled up sheet shape materials 8 and lowering the suction part 5, the sheet shape material is sucked by respective decompression suckers 3, 3'. Then, after raising the suction cylinder 4 and taking up the extreme top sheet shape material 8 in such a way as being peeled up from the peripheral part, the suction part 5 is raised by the main cylinder 2 and the sheet shape material 8 is taken up.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for automatically picking up a plate-shaped material such as sheet-shaped paper.

[0002]

2. Description of the Related Art Conventionally, the work of separating and stacking stacked plate-like materials, that is, sheet-like paper, plastic plate, metal plate, wood plate, etc., one by one, is often seen in various scenes such as various factories and warehouses. To be However, there has never been an example in which this was automated or mechanized with a simple configuration.

[0003] For example, in a papermaking packaging process, thin paperboards laminated by a corrugator are stacked on a stacker, and when a certain number of them are reached, they are transferred to a wooden pallet, packed and transported. At this time, if the stacked thin paper sheets are directly placed on the pallet, even if the pallet is new, stains, scratches, and pallet marks will remain on the thin paper sheet, and the bottom two or three sheets will have no commercial value. was there.
Furthermore, since the pallets used multiple times had many damaged parts, more defective thin paperboard products were generated.

[0004]

Such a problem can be avoided by placing one sheet of sheet paper on the pallet in advance. In the past, in order to put a sheet of paper on a pallet, the sheet of paper was placed by hand one by one. However, in order to automate the process and save labor, there has been a demand for an apparatus that automatically puts the sheet-like sheets on the pallet one by one.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been studied in view of the above problems, and as a result, it is possible to reliably separate and pick up plate-like materials such as sheet-like paper stacked as described above. This is a method that can be used and an apparatus for the method.

That is, the method of the present invention is a method in which a plurality of stacked plate-shaped materials are separated and picked up,
At least two vacuum suction cups are adsorbed to the uppermost plate-shaped material, and the suction cups adsorbed to the peripheral edge of the plate-shaped material among these vacuum suction cups are lifted first, and then the other vacuum suction cups are stacked to be stacked. It is a method for automatically separating and picking up plate-shaped materials, characterized by picking up each of the plate-shaped materials.

Further, the apparatus of the present invention is provided with a vacuum suction cup at one end and a suction section at the other end having a vertically movable suction cylinder provided with a vacuum suction cup at the lower end, and a main cylinder for vertically moving the suction section. Further, the main cylinder is provided at the tip of the revolving arm, and the vacuum suction cup at the lower end of the suction cylinder lowers the suction part so that the suction cylinder adsorbs to the peripheral edge of the uppermost plate material of the stacked plate materials. The plate-like material is sucked by these vacuum suction cups, then the suction cylinder is first raised, and then the main cylinder is raised to pick up the plate-shaped material at the uppermost end, and then the swivel arm is used to move the plate-shaped material to another place. It is a device for automatically separating and picking up plate-shaped materials, which is characterized in that the swivel arm can be moved back and forth in the longitudinal direction, and the vacuum suction cup of the suction part is attached by a universal spherical joint. Or vertical movement of the suction cylinder, the pivoting and longitudinal movements of the drive of vertical movement of the main cylinder and the turning arm or performed with compressed air, constituting sounding an alarm sound when the apparatus is operated by the exhaust pressure of the compressed air is effective.

[0008]

The present invention will now be described in detail with reference to the drawings.

(Embodiment 1) As shown in FIG. 1, a main cylinder (which is vertically moved by air pressure) is attached to the tip of a revolving arm (1) which is rotatable by a rotary cylinder (not shown) driven by compressed air. 2) was provided, and a suction part (5) having a vacuum suction cup (3) on one end side and a suction cylinder (4) on the other end side was attached to the lower end of the main cylinder (2). Further, a vacuum suction cup (3 ') was attached to the lower end of the suction cylinder (4) to make an automatic separating and picking device for sheet-like paper. In the figure, (6) is a flexible air pipe for reducing the pressure inside the vacuum suction cup (4).

A procedure for picking up the sheet-like papers piled up by such a device one by one will be described. First, the revolving arm (1) is revolved to position the suction part (5) above the sheet paper stacking part (7) (FIG. 2A). At this time, the vacuum suction cup (3 ') at the lower end of the suction cylinder (2) is located above the peripheral edge of the sheet of paper.

Next, the main cylinder (2) lowers the suction part (5) to bring the suction cups (3) and (3 ') into close contact with the uppermost sheet-like paper (8) of the stacking part (7), and thereafter these. The inside of the suction cups (3) (3 ') is decompressed through the air pipe (6), and the sheet paper (8) is drawn by these suction cups (3) (3').
Are adsorbed (FIG. 2 (b)).

In order to lift only one sheet of paper sheet (8) by the suction section (5), first, the suction cylinder (4) is operated to suck the sheet paper (8) of the suction cup (3 '). Lift the end of the (Fig. 2 (c)). That is, the edges of the paper can be relatively easily lifted even if they are exactly overlapped, and as shown in the figure, the outside air naturally flows in, and the uppermost sheet-like paper (8) is easily separated from the stacking portion (7). .

After that, by raising the main cylinder, the suction portion (5) for sucking one sheet-like sheet (8) at the uppermost end is raised and one sheet-like sheet is separated and picked up (see FIG. 2 ( d)). Although the number of vacuum suction cups is two in this embodiment, the number of vacuum suction cups may be three or more. However, even in that case, any one of the vacuum suction cups is always sucked to the peripheral edge of the sheet-like paper and first raised. That is, all the vacuum suction cups are prevented from rising simultaneously while adsorbing the paper.

Further, when the sheet-shaped papers are picked up one after another from the stacking section (7) in this manner, the height of the stacking section (7) gradually decreases, and falls below the lowering limit of the main cylinder (2). . In order to deal with this, the stacking part (7) is placed on a compressed air driven table lifter, and the operation of the table lifter is turned on by an air limit for detecting the height of the upper end of the stacking part (7). It is configured to be turned off. With this configuration, the uppermost sheet-shaped paper (8) always has a constant height, so that the device configuration on the main cylinder side is easy.

Further, since the moving parts of the device of the present invention utilize compressed air for all the moving parts, even if the product to be handled is a flammable paper, a fire due to a contact spark when an electric drive device is used. There is no fear of. Further, (9) of FIG. 1 is an alarm device such as a buzzer that notifies the operation of the cylinders or the swing arm when the cylinders move or the swing arm moves by using the exhaust pressure of compressed air, and is useful for preventing danger to workers. The speed of the movable part can be easily adjusted by adjusting the air pressure.

An example in which such an apparatus is applied to the papermaking packaging process will be described. As shown in Fig. 3, the stacker (1
When stacking thin paperboard (11) sent from one line of (0) and placing it on the pallet (12) sent from the other line and sending it to the next process, it is placed on the pallet (12). The device of the present invention is used as an automatic paper-sheet feeding machine (13) for loading a sheet-like paper sheet in advance.

That is, the pallet (12) sent onto the conveyor (15) by the pallet feeder (14) for sending the pallet onto the conveyor line is detected by the air limit (16) on the conveyor line, and the automatic machine (13) is detected. ) Is operated to pick up the uppermost sheet of the sheet (17) piled up when the pallet (12 ') reaches a predetermined position on the conveyor and place it on the pallet (12') to stacker (10). ) To. As described above, the use of the apparatus of the present invention realizes automation and labor saving in the packing process of the paper mill.

(Embodiment 2) As shown in FIG. 4, the revolving arm (1) is divided in the longitudinal direction into an arm tip portion (1b) having a main cylinder (2) and an arm body portion (1a). Separately, an arm cylinder (20) for moving the arm tip (1b) back and forth was installed in the arm body (1a). Since the swivel arm can be moved back and forth in this way, the position of the plate-shaped material to be picked up by this suction cup and the position to pick it up and place it are arms having a fixed length as in the first embodiment. Not only on the same turning line, but also on a wide surface, the flexibility of installation location and usage increases.

The vacuum suction cup (3 ') attached to the lower end of the suction cylinder (4) was connected to the lower end of the rod of the suction cylinder (4) by a universal spherical joint (21). Since the vacuum suction cup (3 ') is oriented in any direction in this way, it can be easily fitted to such an inclined surface even when the plate-like material to be taken has a warped shape. This universal spherical joint is a suction cylinder (4) in this embodiment.
Although attached only to the vacuum suction cups (3 ') at the lower end of the above, other vacuum suction cups (3) may be installed, or all vacuum suction cups may be mounted.

Further, in this embodiment, the air motor (22) is used as means for rotating the rotating arm (1).
Moreover, since the main shaft of the turning arm (1) and the main shaft of the air motor are separated and connected by a super gear, damage due to overload of the air motor can be prevented.

[0021]

As described above, according to the present invention, since the drive of the apparatus is constructed by using compressed air, there is no spark or the like in the case of electric drive, and frequent operation in a flammable atmosphere and frequent burning of flammable substances are required. It is especially effective for the work to handle. In addition, the stacked plate-like materials can be separated and picked up one by one from the top, and can be moved, which is useful for the automation of factories and workshops that handle paperboard, resin plates, metal plates, wood plates, etc.
Cost reduction can be achieved.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the device of the present invention.

FIG. 2 shows the operation of the device of the present invention (a) to (d).
Are all explanatory diagrams thereof.

FIG. 3 is an explanatory view of a packing line in a paper manufacturing factory using the device of the present invention.

FIG. 4 is an explanatory view showing another embodiment of the device of the present invention.

[Explanation of symbols]

 1 Swivel arm 1a Arm body 1b Arm tip 2 Main cylinder 3, 3'Decompression suction cup 4 Adsorption cylinder 5 Adsorption part 6 Air piping 7 Stack of sheet paper 8 Topmost sheet paper 9 Alarm device 10 Stacker 11 Thin plate Paper 12 Pallet 13 Automatic paper feeder 14 Pallet feeder 15 Conveyor 16 Air limit 17 Stacked paper 20 Cylinder for arm 21 Universal spherical joint 22 Air motor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area B65G 57/04 59/04

Claims (6)

[Claims] 1. A method of separating and picking up a plurality of stacked plate-shaped materials, wherein at least two vacuum suction cups are adsorbed to the plate-shaped material at the uppermost end, and the peripheral edges of the plate-shaped materials of these vacuum suction cups are adsorbed. A method for automatically separating and picking up plate-shaped materials, characterized by picking up sucked suckers first, and then picking up the stacked plate-like materials by raising other vacuum suction cups. 2. A vacuum suction cup is attached at one end, and a suction cylinder is provided at the other end. A suction cylinder having a vacuum suction cup at the lower end is mounted. The suction cylinder is provided with a main cylinder for moving the suction cylinder up and down. The main cylinder is installed at the tip of the swivel arm, and the vacuum suction cup at the lower end of the suction cylinder lowers the suction part so that the vacuum cylinder sucks on the peripheral edge of the uppermost plate material of the stacked plate materials, and the vacuum suction plate Adsorbs the strip-shaped material, then first raises the adsorption cylinder, then raises the main cylinder to pick up the plate-shaped material at the uppermost end,
Thereafter, the plate-shaped material is automatically separated and picked up by a turning arm to transfer the plate-shaped material to another place. 3. The device according to claim 2, wherein the revolving arm is movable back and forth in its longitudinal direction. 4. The apparatus according to claim 2, wherein the vacuum suction cup of the suction section is attached by a free spherical joint. 5. The apparatus according to claim 2, wherein the up / down movement of the adsorption cylinder, the up / down movement of the main cylinder, the swiveling arm of the swivel arm, and the back-and-forth movement are driven by compressed air. 6. The device according to claim 5, wherein an alarm sound is emitted when the device is activated by the exhaust pressure of the compressed air.