JPS6310069B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention effectively aligns paper by holding down the paper supplied to a paper alignment device that stacks a large number of sheets of paper in a bar with their corners aligned. The present invention relates to a paper holding device that does this.

[Prior art]

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 paper, but in the past, this paper alignment work was all done manually, 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
(Unexamined Japanese Patent Application No. 60-12456), Japanese Patent Application No. 58-118836 (Unexamined Japanese Patent Application No. 12457)
No. 60-12458), Japanese Patent Application No. 118838 (Sho 58-1983)
No. 12459), we proposed a paper alignment device that could automatically and evenly align the edges of the stacked paper and stack them in a bar by simply stacking the paper one after the other from the top, and achieved a dramatic increase in work efficiency. The present invention is intended to efficiently perform the next stage of paper alignment without causing paper misalignment, paper folding, etc. when feeding paper to the above-mentioned paper alignment device.

[Summary of the invention]

This invention enables efficient next-stage paper processing without causing paper misalignment, paper folding, etc., by reliably holding down the paper supplied to the paper alignment device with a swingably supported arm. An object of the present invention is to provide a paper holding device that can perform alignment processing.

[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, the paper pressing device 1 according to the present invention is arranged near the elevating table 3, which is the paper supply section of the paper aligning device 2 of the above-mentioned patent application.

As shown in the first diagram, the paper holding device 1 includes a first support shaft 5 supported by a support piece 4 so as to be slidable in the direction of the arrow A and rotatable in the direction of the arrow B; a second support shaft 6 fixed to the end of the shaft 5;
An arm 7 whose one end is supported by this second support shaft 6
and has.

The first support shaft 5 is connected to a first motor 9 via a crank mechanism 8. As shown in the second diagram, this first motor 9 is connected to a sensor 10 disposed near the supply section of the paper aligning device 2, and is operated based on a paper supply signal detected by the sensor 10. 9, the lifting table is slid in the direction of the lifting table 3 as 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). Also, this first
The support shaft 5 is connected to a second motor 14 via a mechanism 13 having a spherical bearing such as an ordinary rod end, and is configured to be rotatable in the direction of arrow B by this second motor 14. There is. Note that, for example, after the first motor 9 operates, the second motor 14
It is connected to a timer 15 that can operate at a predetermined time. Therefore, this first support shaft 5 has a hole 6.
The second support shaft 6 fixed via a rotates in the direction of arrow B as the first support shaft 5 rotates as shown in the first figure. 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. 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 that 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, depending on the angle of the notch part 19a of the notch plate 19,
The swinging range of the presser claw 17 is regulated within a predetermined range. A heavy peg 20 is attached to one end of this presser claw 17.
is fixed, and in the normal state, the presser pawl 17 is inclined as shown in FIG. 4a, but as the arm shaft 16 rotates, the presser pawl 17 becomes horizontal as shown in FIG. 4b.

[Effect]

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 moves the first support shaft 5 in the direction of the lifting table 3 by the first motor 9, as shown by arrow A. Along with this, timer 15
As a result, the second motor 14 is activated, and the second support shaft 6 and arm 7 are rotated clockwise as shown by arrow B, so that the presser pawl 17 can securely press the supplied paper. can. At this time, presser claw 17
is rotatably supported on the second support shaft 6, and a balance weight 20 is provided at one end of the support shaft 6, so that the paper can be held extremely softly. Moreover, the connection part of the first and second motors 9 and 14 that move the first support shaft 5 is as follows.
As mentioned above, since this is done via curved bearings, smooth and reliable operation can be achieved even if the precision of the parts and movement are slightly off. Furthermore, as shown in the second 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 sheets are not held down by the presser pawls 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 then the first motor 9 is activated by a separately provided timer 15 to return to the 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, by reliably holding down the paper supplied to the paper aligning device by the swingably supported arm, the paper can be efficiently pressed without causing paper misalignment etc. This has the advantage that the next stage of paper alignment processing can be performed.

[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. 2...Paper aligning device, 3...Elevating table, 5...First
6... second support shaft, 7... arm.

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; A paper holding device comprising an arm swingably supported by the free end of the second support shaft and holding down the paper supplied to the elevating table.