JPH0211497B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for controlling the stacking positions of punched papers in a paper punching machine.

The following are known as conventional paper stacking position control devices. That is, four walls are provided to surround the paper stacking position, claws are provided to pass over the area surrounded by the walls, and the front edge of the paper is gripped by the claws at the beginning of the movement of the paper. It is known that the grip of the claws is released when the paper is above the stacking position. By repeating this operation, the sheets of paper are stacked at the same position.

However, when stacking punched papers using the above-mentioned conventional example, there is a problem in that there is a large misalignment between the sheets at the stacking positions. In other words, if a punched paper is gripped by a claw, the claw is moved to feed the paper, and the claw is released at the same position in the stacking area, the punched paper will have holes formed by the punching. Compared to non-punched paper, the stacking positions will be more misaligned because the edges of the paper get caught on other papers, because the paper has no stiffness, or because each paper has different curls.

The present invention has been made in view of the above conventional problems, and provides a paper stacking position control device that can reduce the amount of deviation in the stacking position when punched paper is transferred and stacked. The purpose is to

In order to achieve this object, the present invention provides a claw that grips the front end of paper, a brush member that clamps the rear end of the paper between a brush and a clamping plate, a conveying means for moving the claw, and a brush member that clamps the rear end of the paper between a brush and a clamping plate. adjusting means for adapting the attachment position of the members to the stacking position; opening/closing means for bringing the brush and the clamping plate into contact with and away from each other; and when the pawl reaches a predetermined position, the pawl and the brush member are connected to each other. and a release means for simultaneously releasing the paper and causing the paper to fall.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings. The figure is an explanatory diagram of an embodiment of the present invention.

The claw 10 grips the front end of the paper that has completed the punching process, moves along the two-dot chain line, and releases its grip on the paper approximately at the claw position shown in the figure. wall 1
Reference numerals 1 and 12 surround the paper stacking position, and in reality, they are also provided on the left and right sides in the paper traveling direction.
A brush member is constituted by the brush 21 and a clamping plate, for example, an iron plate 22, and this brush member clamps the rear end of the paper. Moreover, this brush member has a claw 10.
When the gripper reaches a predetermined position, the gripping operation of the paper is released in synchronization with the release of the claws 10, thereby causing the paper to fall.

The cam 31 rotates around the base shaft 32, and the roller 3
3 is in contact with the cam surface. This roller 33 is provided at one end of an arm 34, and this arm 34 rotates around a fixed shaft 35. The other end of this arm 33 has a spring 36 that brings the roller 33 into contact with the cam surface.
A rack holding member 37 for holding the rack 41 is pivotally mounted.

The rack 41 meshes with a pinion 42, which rotates together with the gear 43. gear 43
is a mesh holding plate 61 at one end of the spline shaft 50.
is maintained. This holding plate 61 is fixed to a fixing rack 62.

A bevel gear (not shown) is fixed to the other end of the spline shaft 50, and another bevel gear 71 meshes with this bevel gear. The brush 21 is fixed to this bevel gear 71 via an arm 72. This brush 21 is normally tilted as shown in the figure and cooperates with the iron plate 82 to pinch the paper.

A gear 71a is provided integrally with the bevel gear 71, and the gear 71a and the upper part of the rack 80 mesh with each other. The lower part of the rack 80 meshes with a gear 81, and the gear 81 meshes with a gear 82, to which the iron plate 22 is fixed.

The holding plate 91 directly or indirectly holds the bevel gear 71, the gear 71a, the arm 72, the brush 21, the iron plate 22, the rack 80, and the gears 81, 82. A gear 92 is pivotally supported on the holding plate 91, and this gear 92 meshes with the fixing rack 62. The gear 92 is rotated by a chain wheel 94 via a chain 93. The chain wheel 94 is provided with a handle (not shown), is manually driven by the handle, and is equipped with a locking device.

Next, the operation of the above embodiment will be explained.

First, the front end of the paper that has completed the punching process located on the right side of the figure is gripped by the claws 10, and the rear part is held between the brush 21 and the iron plate 2. In this case, the roller 33 is in contact with the longer radius portion of the cam 31. When the claw 10 moves leftward in this state, the paper also moves. And the paper is on the wall 11,
When the claw 10 reaches a position between 12 and 12, the claw 10 opens.

At this time, the long radius part of the cam 31 contacts the roller 33 and pushes the roller 33 downward, so the rack holding member 37 is pushed upward against the spring 36, and the pinion 42 is moved from the left in the figure. Look and rotate clockwise. As a result, the spline shaft 50 rotates counterclockwise, and the bevel gear 71 rotates clockwise in the figure. The brush 21 is rotated clockwise via the arm 72 integrated with the bevel gear 71, and the tip of the brush 21 is raised.

Also, since the gear 71a rotates clockwise,
The rack 80 is raised, the gear 81 meshing with the rack 80 rotates clockwise, the gear 82 rotates counterclockwise, and the iron plate 22 integrated with the gear 82 also rotates counterclockwise. As a result, the left end of the iron plate 22 is lowered, so that the speed at which the force pinching the rear end of the paper is released becomes faster. In this case, the force that pinches the paper may be released by pushing only the brush 21 upward; however, by lowering the iron plate 22 in synchronization with the pushing up of the brush 21, it is possible to release the force that holds the paper. The faster the edges are released, the more accurate the paper stack positioning will be.

On the other hand, depending on the size of the paper, it may be necessary to change the distance between the walls 11 and 12, and to move the positions of the brush 21 and iron plate 22 accordingly. In this case, the chain wheel 94 is rotated by hand. This causes the chain 93 to rotate and the fixed rack 62
The gear 92 rotates relative to the rotation. For this reason, the holding plate 91 moves to the left or right, so by adjusting the amount of movement, the brush 21 and the iron plate 22 can be moved.
All you have to do is adjust the amount of movement.

The counterpart of the brush 21 constituting the brush member may be made of a metal other than an iron plate, and may be made of a material other than metal as long as it is relatively hard. Also, brush 2
1 may be inclined at an angle other than that shown, and the angle of inclination is arbitrary.

As described above, the present invention has the effect that when the punched papers are transported and stacked, the amount of deviation in the stacking position can be reduced.

[Brief explanation of drawings]

The figure is an explanatory diagram of an embodiment of the present invention. 10...nail, 21...brush, 22...iron plate, 3
1... Cam, 41... Rack, 50... Spline shaft, 62... Fixed rack, 71... Bevel gear, 9
1...Holding plate, 93...Chain.

Claims (1)

[Claims] 1. A claw for gripping the front end of the paper; a conveying means for moving the claw; a brush member for sandwiching the rear end of the paper between a brush and a clamping plate; and for adapting the mounting position of the brush member to the stacking position. an adjusting means; an opening/closing means for separating and separating the brush and the clamping plate; and an opening means for simultaneously opening the pawl and the brush member to allow the paper to fall when the pawl reaches a predetermined position. A paper stacking position control device in a paper punching machine, characterized in that it has;