JPH0597221A - Belt conveyer and driving of belt conveyer - Google Patents

Abstract

PURPOSE:To prevent paper sheet and the like from being smeared or to prevent a heap of the paper sheets and the like from being broken, even if the paper sheets and the like are carried as simply heaped, by winding an endless belt of smooth surface, around the upper and lower surfaces of an air table, and thus forming it into a belt conveyer. CONSTITUTION:A belt conveyer is formed out of an air table 1, rollers 3, 3 pivotally supported by both ends of the table forward and backward, a rubber belt 2 provided by winding the air table 1 and the roller 3, and of a driving device 8. The driving device 8 is composed of a sucker 4 which is a sucking means, moved vertically by an air cylinder 5, and of a driving motor 7 for moving the air cylinder 5 along a driving rail 6. A belt 2 is moved in an integrated manner by moving the sucker 4 in parallel along the rail 6 up to a position 4-1, while the belt 2 is sucked by the sucker 4, and the suction is cancelled at the position 4-1, while a motion of elevating the sucker 4 and restoring it to an initial position is repeated so as to move the belt 2 in order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt conveyor suitable for conveying stacked paper sheets.

[0002]

2. Description of the Related Art Conventionally, as a method of conveying stacked paper sheets, it has been customary to place the paper sheets on a pallet and convey the whole pallet by a manual carrier or a power carrier such as a forklift. Alternatively, belt conveyors and roller conveyors are also used. However, when the paper sheet is a printing paper printed by a printing machine, it is necessary to eliminate stains, scratches, and tears during transportation as much as possible. Therefore, when the conventional belt conveyor or roller conveyor is used, the printing paper is always placed on the pallet and is conveyed together with the pallet. Further, when various post-treatments such as drying, powder dropping, reversal, and sticking are performed after printing, it is not possible to treat the printing paper while being placed on the pallet. However, in recent years, there has been a call for rationalization of printing factories, and there is a demand for fully automatic post-processing of printing paper.

[0003]

SUMMARY OF THE INVENTION In view of the problems of the prior art described above, the present invention is directed to the formation of piles of paper, sheets, printing paper, etc., without breaking the piles of the piles, without tearing, and causing wrinkles. It is an object of the present invention to provide a belt conveyor that can be transported without causing a pallet, a plate, and other auxiliary members, and a driving method thereof.

[0004]

According to the structure described in claim 1, the above-mentioned problems can be solved by: an air table; an endless belt having a smooth surface wound around the upper and lower surfaces of the air table; and rotating the endless belt. This is solved by using a belt conveyor composed of driving means for

According to a second aspect of the present invention, the air table, the rollers rotatably provided at both ends of the air table, the air table and the endless belt having a smooth surface wound around the roller, The problem is solved by using a belt conveyor including a driving unit that rotates an endless belt.

According to the third aspect of the present invention, the driving means includes the belt suction means provided on the upper surface side or the lower surface side of the endless belt or on each side thereof, and the moving means for moving the suction means. It is solved by configuring.

Further, according to the structure described in claim 6, the problem can be solved by constituting the belt suction means by a sucker connected to an air pump. Further, according to the configuration of claim 7, a method of driving a belt conveyor for rotating an endless belt wound around the upper and lower surfaces of an air table to convey an article placed on the upper surface of the belt. Therefore, the problem can be solved by adopting a belt conveyor driving method in which the suction means sucks the belt and the suction means is moved to rotate the belt.

Alternatively, according to the configuration of claim 8,
A method of driving a belt conveyor for intermittently rotating an endless belt wound around the upper and lower surfaces of an air table to convey an article placed on the upper surface of the belt, the method comprising: After rotating the suction means by a certain distance in parallel with the belt surface, the suction means is separated from the belt and returned to the original position, and then the suction means sucks the belt again to rotate the belt. Will be solved.

The material of the above-mentioned endless belt is not particularly limited as long as it is made of rubber, fibers having a smooth woven surface, coated with rubber, or steel having a smooth and flexible surface. I don't care.

[0010]

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic side view showing the structure of a belt conveyor according to the present invention. The conveyor comprises an air table 1, a roller 3 rotatably provided at the front and rear ends of the air table, a rubber belt 2 wound around the air table 1 and the roller 3, and a belt 8 driving device 8. The driving device 8 includes a sucker 4, an air cylinder 5 for moving the sucker 4 up and down, a sucker 4, and a drive motor 7 for moving the sucker 4 and the air cylinder 5 along a drive rail 6.
Made of. The detailed structure of the air table 1, the air pump (vacuum pump) connected to the sucker 4 and the air cylinder 5, and the like are omitted in the drawing.

Although not shown, the driving device 8 may be provided below the air table 1, and the driving device 8 may be a rotary type that rotates the sucker 4 in an elliptical shape. Further, the soccer 4 can be provided in a pair or a plurality of pairs on both sides of the belt 2.

The operation of the belt conveyor having the structure shown in FIG. 1 will be described below. In the figure, the sucker 4 attracts the belt 2, and the drive motor 7 is rotated in this state. Soccer 4 then moves to the position shown as 4-1 on the chain double-dashed line. As a result, the conveyed product 9 which is a pile of paper sheets is conveyed to a position indicated by a dotted line 9-1. Next, soccer 4-1 with 5-1 air cylinder
, The drive motor 7 is rotated in the opposite direction to the previous drive, or the sucker 4-1 is returned to the original position shown as 4 by a clutch and gear structure (not shown).

Due to the action of the air table 1 and the roller 3, the belt 2 can be rotated with a comparatively small force even if the transported object 9 is heavy.

[0014]

According to the present invention, since the air table and the flexible belt having a smooth surface are used, even if the paper sheets and the like are conveyed as they are stacked on the stick, they may become dirty or damaged.
The pile of paper sheets does not collapse. Therefore, it can be transported to the next process without any trouble.

Since the means for moving the belt by suction is used as the sliding driving means, it can be applied to completely match the moving speeds of the belts of two similar belt conveyors. As a result, it is possible to move a conveyed material such as paper sheets, which is easily bent and easily wrinkled or torn, from one belt conveyor to another belt conveyor for transferring to another process without any abnormality.

[Brief description of drawings]

FIG. 1 is a side view schematically showing a configuration of a belt conveyor that is an embodiment of the present invention.

[Explanation of symbols]

1 air table, 2 belts, 3 rollers, 4
Soccer, 5 air cylinders, 6 drive rails,
7 Drive motor, 8 Drive device, 9 Conveyed goods.

Claims (8)

[Claims] 1. A belt conveyor comprising an air table, an endless belt having a smooth surface wound around the upper and lower surfaces of the air table, and driving means for rotating the endless belt. 2. A belt comprising an air table, a roller rotatably provided at both ends of the air table, an endless belt having a smooth surface wound around the air table and the roller, and a drive means for rotating the endless belt. Conveyor. 3. A belt adsorbing means, wherein the driving means is provided on the upper surface side or the lower surface side of the endless belt, or on each side thereof,
The belt conveyor according to claim 1 or 2, comprising a moving means for moving the suction means. 4. The belt conveyor according to claim 3, wherein the moving means for moving the belt suction means is a rotary type. 5. The belt conveyor according to claim 3, wherein the moving means for moving the belt adsorbing means reciprocates linearly. 6. The belt conveyor according to claim 3, wherein the belt suction means is a soccer connected to an air pump. 7. A method of driving a belt conveyor for rotating an endless belt wound on the upper and lower surfaces of an air table to convey an article placed on the upper surface of the belt, wherein the suction means sucks the belt. Then, a belt conveyor driving method comprising rotating the belt by moving the suction means. 8. A method of driving a belt conveyor for intermittently rotating an endless belt wound around the upper and lower surfaces of an air table to convey an article placed on the upper surface of the belt, the method comprising a suction means. After the belt is sucked and the suction means is rotated parallel to the belt surface for a certain distance, the suction means is separated from the belt and returned to the original position, and then the suction means sucks the belt again to rotate the belt. And how to drive the belt conveyor.