JPH0453788B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a paper pressing device that presses paper supplied to a paper aligning device that stacks a large number of sheets of paper in a bar with their corners aligned, thereby effectively aligning the sheets.

[Conventional technology]

For example, when printing on paper using a printing machine, in order to print in the same position on the paper under the same conditions, it is necessary to set each printing paper with the corners aligned, and paper of different sizes must be set in the same manner. In order to cut to size, it is necessary to align at least two sides of each sheet of paper, but in the past, all of this paper alignment work was done by obtaining paper, which took a lot of effort and time and was very inefficient. However, there were drawbacks such as difficulty in aligning the paper evenly. Therefore, the applicant of this application first applied for Japanese Patent Application No. 118835-1983
In Japanese Patent Application No. 118836/1983, No. 118837/1983, and No. 118838/1983, simply load the paper sequentially from the top, and the loaded paper will be stacked in a bar with the corners automatically and evenly aligned. The present invention has proposed a paper alignment device that can perform paper alignment, and has achieved a dramatic increase in work efficiency.This invention provides an efficient next step in feeding paper to the paper alignment device without causing paper misalignment, paper folding, etc. This is for arranging the paper in stages.

[Summary of the invention]

According to the present invention, the paper supplied to the paper alignment device is held by the paper presser main body which is operated by the drive section.
It is an object of the present invention to provide a paper holding device that can efficiently perform the next stage of paper alignment processing without causing paper displacement, paper folding, etc. by firmly holding the paper.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. As shown in the second diagram, a paper holding device main body 1 according to the present invention is arranged near an elevating table 3 which is a paper supply section of a paper aligning device 2 of the above-mentioned patent application. As shown in the first figure, the paper presser main body 1 includes a first support shaft 5 supported by a support piece 4 so as to be slidable in the direction of arrow A and rotatable in the direction of arrow B; A second support shaft 6 fixed to the end of the support shaft 5
and an arm 7 whose one end is supported by the second support shaft 6. The first support shaft 5 is connected to a first motor 9 (drive section) via a crank mechanism 8. As shown in the second diagram, this first motor 9 is connected to a sensor 10 as a detection means arranged near the supply section of the paper aligning device 2, and is operated based on a paper supply signal detected by the sensor 10. The first motor 9 slides the elevating table 3 in the direction shown by arrow A. At this time, the connecting portion 11 between the crank mechanism 8 and the first support shaft 5 and the connecting portion 12 between the first motor 9 and the crank mechanism 8 are both connected by a spherical bearing (not shown). Further, this first support shaft 5 is connected to a second motor 14 (drive section) via a mechanism 13 having a spherical bearing such as a normal rod end.
The second motor 14 is configured to be rotatable in the direction of arrow B. Note that the second motor 14
is connected to, for example, a timer 15 that operates at a predetermined time after the first motor 9 is activated. Therefore, the second support shaft 6 fixed to the first support shaft 5 through the hole 6a rotates in the direction of arrow B as the first support shaft 5 rotates as shown in the first figure. move. At this time, an adjustment screw (not shown) is attached to the first support shaft 5, and by adjusting the protrusion amount of this adjustment screw, the rotation range of the second support shaft 6 in the direction of arrow B can be adjusted. It is designed to be adjustable. An arm 7 for holding down the paper supplied to the paper aligning device 2 is supported through the insertion hole 6b at one end of the second support shaft 6. This arm 7 includes an arm shaft 16 that passes through the insertion hole 6b and whose fixed position can be adjusted in the direction of arrow C, and a presser claw 17 that is supported at the free end of this arm shaft 16 so as to be swingable in the direction of arrow D.
and has. The arm shaft 16 is fixed to the second support shaft 6 by a fixing screw 18 provided in the insertion hole 6b as shown in the third figure, and the fixing screw 8 is engaged with the keyway 16a. By adjusting the position, the fixing position in the direction of arrow C can be adjusted in accordance with the size of the paper to be held. The free end of the arm shaft 16 passes through a hole (not shown) in the approximate center of the presser claw 17, and is loosely fitted into the presser claw 17 so as to be rotatable in the direction of arrow D. A tip protrusion 5a is provided which engages with a cutout plate 19 fixed to the presser claw 17 and causes the presser claw 17 to swing within a predetermined range in the direction of arrow D. At this time, the swing range of the presser pawl 17 is regulated within a predetermined range by the angle of the notch portion 19a of the notch plate 19. A weight 20 is fixed to one end of the presser claw 17, and in the normal state, the presser claw 17 is tilted as shown in FIG. It becomes horizontal as shown in FIG. 4b. Next, the operation of this invention will be explained. When paper is supplied to the elevating table 3 of the paper aligning device 2 in order to stack paper, the sensor 10
detects this, and based on this detection signal, the first
The motor 9 moves the first support shaft 5 in the direction of the lifting table 3, as shown by arrow A. Along with this, the timer 15 causes the second motor 14 to
is activated, the second support shaft 6 and the arm 7 are rotated clockwise as shown by the arrow B, and the presser claw 1 is rotated.
7, it is possible to reliably press down the supplied paper.
At this time, the presser claw 17 is moved against the second support shaft 6.
Since it is rotatably supported and a weight 20 for balance is provided at one end, it is possible to press the paper very softly. In addition, since the connection between the first and second motors 9 and 14 that move the first support shaft 5 is via a curved bearing as described above, the precision of the parts and the precision of the operation may be a little off. It can also operate smoothly and reliably. Furthermore, as shown in the first diagram, when the paper aligning device 2 is provided with a blower nozzle 21, air enters each sheet of paper to be pressed down, so that the paper is not held down by the presser claws 17. It is also possible to prevent paper from adhering due to static electricity. After that, the second motor 14 is activated by the timer 15.
is activated, and the pressing of the paper by the presser claw 17 is released. Next, the first motor 9 is activated by a separately provided timer 15, and the first support shaft 5 is moved backward to return to its original state. In this embodiment, the first and second motors 9 and 14 are operated by sensors, timers, etc., but the invention is not limited thereto, and they may be operated by manual mechanical means. It's okay.

【Effect of the invention】

As described above, according to the present invention, based on the detection signal from the detection sensor, the first and second
Since a drive unit is provided that sequentially drives the motors to interlock the first support shaft, second support shaft, and the arm, the supplied paper can always be held under the same conditions. This has the effect of efficiently performing paper alignment processing without causing paper misalignment or the like.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of the present invention, FIG. 2 is a schematic diagram of an embodiment in which the present invention is applied to a paper aligning device,
FIG. 3 shows a perspective view of the arm, and FIG. 4 shows a plan view of the arm. 1...Paper pressing device main body, 2...Paper aligning device, 3
...Elevating table, 5...First support shaft, 6...
Second support shaft, 7...arm, 9, 14...driver, 10...detection means (sensor).

Claims (1)

[Claims] 1. A first support shaft that moves forward and backward and rotates in the direction of the elevating table of the paper aligning device by first and second motors, and a second support shaft that is supported at one end of the first support shaft; An arm swingably supported by the free end of the second support shaft, a detection sensor that detects whether or not paper is supplied to the elevating table, and based on a detection signal from the detection sensor,
a drive unit that sequentially drives the first and second motors to interlock the first support shaft, the second support shaft, and the arm in order to cause the arm to press the paper after a predetermined time; Paper holding device equipped with