JPS61106351A - Sheet end turnup device for stacked sheets - Google Patents

Abstract

PURPOSE:To provide easy holding of part of stacked sheets with a clamp etc. by inserting a lever in a corner of the stacked sheets, turning up partially the uppermore lying sheets with a certain thickness, and by heaving the turned-up portion by means of propagating to both sheet ends. CONSTITUTION:A corner turnup tool 6 is actuated to make a lever 13 turn up corner 1A of sheets 3 in an appropriate amount, and a plough 30 of a second sheet end turnup tool 8 is inserted under the turned-up sheets 3 and, in this condition, moves from the corner 1A along the sheet end 1C till near the corner 1E. Thus the turnup at the corner 1A is propagated to the sheet end 1C, and now the corner 1E is also turned up. Then the lever 22 closet to the corers 1A, 1E moves from the stand-by position to the working position for insertion among the stacked sheets 1, and is inserted under turned-up sheets 3 at the corner for turning up the sheets 3 further. Then the adjacent turnup lever 22 moves to the working position to propagate the turnup of the sheets 3 to the center of sheet end, and then the last turnup lever 22 moves to the working position to propagate the turnup till the end of the sheet edge. Thus the sheets 3 in appropriate amount are turned up with their whole sheet edges 1B, 1D.

Description

Detailed Description of the Invention: Industrial Field of Application The present invention is directed to a stacked paper that lifts the edge of a small amount of paper in order to take out paper little by little from the top of a large amount of stacked paper (hereinafter referred to as stacked paper). It relates to an end-turning device.

PRIOR ART Papers discharged from a printing press and stacked are usually not aligned on their edges, and are fed to a suitable leveling machine to align the edges before being run through a cut-and-cut machine. Since the straightening machine cannot process a large amount of paper at once, it is necessary to feed the paper in small quantities to the straightening machine. This paper feeding operation has conventionally been performed manually by an operator.

Problems to be Solved by the Invention However, the work of carrying heavy paper by hand is extremely hard labor, and it has been desired to mechanize this work. One problem in mechanizing the process of feeding paper little by little from a large stack of paper to a sorting machine is the development of a device that takes out paper little by little from the top of the stack. It may be possible to transport the paper by clamping one or both ends with a suitable clamp hand, but it is too difficult to clamp only a partial end of a stack of paper with a clamp hand, and for this reason the current method However, no device has been developed that allows paper to be removed little by little from a large stack of paper.

However, the present invention was made in view of the current situation,
To provide a paper edge turning device for holding the upper part of a stack of papers so that the edges of a part of the paper can be satisfactorily pinched with a clamp hand.

Means to solve problems The inventors of the present invention should achieve the above object (result of intensive study).

When lifting the edge of the paper that makes up the top of the stack, it is difficult to lift the entire edge at once because it scratches.

The present inventors have discovered that it is possible to easily lift an end by first turning up a part of the corner or end, and then spreading the turned over part to the entire end.

The present invention, which has been achieved based on the above findings, provides a turning-starting tool that is disposed near one corner or paper edge of a stack of paper and turns up a part of the upper paper of the stack; A paper edge turning device for stacked paper, characterized in that it has a paper edge turning tool disposed along the paper edge where the turning start tool propagates the turning of a part of the paper to the paper edge. This is the summary.

Example A preferred embodiment of the present invention shown in one drawing will be described below.

FIGS. 1 and 2 are a plan view and a side view showing an embodiment of the present invention. In the figure, ■ indicates stacked paper.

It is placed on a lifting platform 2 that moves up and down. Lifting platform 2
is provided with a drive device and a control device (not shown) for raising and stopping the stacked paper l to a position for taking out the paper stack 1 of the amount a (FIG. 2) at the top thereof. A paper edge turning device 4, which is an embodiment of the present invention, is arranged near the upper end of the stack of papers 1 so as to surround three sides of the stack of papers 1.

As can be clearly seen from FIG. 2, the paper edge turning device 4 of this embodiment is designed to lift or turn up an appropriate amount of paper edges IB and 10 on both sides of the paper 3 so that the clamp hand 5 can easily grasp the paper edges IB and 10. be.

The paper edge turning device 4 includes a turning start tool 6 disposed near one corner IA of the stacked paper l, a paper end IB leading to the corner IA where the turning start tool 6 is arranged, and a paper edge IB on the opposite side thereof. Paper edge ID
It consists of a pair of paper edge turning tools 7 disposed along the corner IA, and a second paper edge turning R8 disposed along the other paper edge IC following the corner IA. The turning start tool 6 of this embodiment is
As shown in FIGS. 3 and 4, it consists of a rotary actuator 11 and a lever 13 held on its rotating shaft 12, and the lever 13 rotates in the direction of the arrow shown in FIG. It enters into the corner 1Δ of , turns up an appropriate amount of part (corner) of the gill 3, and separates it from the rest. Hereinafter, the turning starting tool 6 will be referred to as a corner turning tool.

Note that the means for moving the lever 13 in the direction of the arrow is not limited to the illustrated rotary actuator 11, but a motor may also be used, and the lever 13 is not limited to moving in an arc shape, but may be moved using a pneumatic cylinder, a hydraulic cylinder, etc. may be moved in a straight line.

In FIG. 1, the first paper turner 7 has three turner lever assemblies 18 held on a support bar 17°.

The support rod 17 is movably held on the rail 19 so that the mounting position can be changed depending on the size of the paper l. Each turning lever assembly 18 has a support rod 15 as shown in FIG.
A pedestal 20. a vertical shaft 21 rotatably held on the pedestal 20; It consists of a conical turning lever 22 attached to a vertical shaft 21 and a pneumatic cylinder 23 for rotating the vertical shaft 21. The pneumatic cylinder 23 pivots the turning lever 22 between a standby position where it does not contact the paper stack (solid line position in Figure 1) and an operating position where it is inserted into the paper stack (1l: dot-dashed line position). let・Here, turn the turning lever 2 in the standby position.
2 faces the corner IA where the corner turning tool 6 is arranged. 0 The conical turning lever 22 may be installed horizontally, but in the example, the lower side of the conical surface is parallel to the plane of the paper. The central axis is slightly tilted downward so that This structure is preferable because when the turning lever 22 is pivoted to the operating position, the turning lever 2z effectively presses and fixes the paper underneath.

The second paper edge turning tool 8 includes a guide 25 arranged along the paper edge IC. The ski tool assembly 26 consists of a ski tool assembly 26 movably held by the guide 25 and a drive mechanism (not shown) that reciprocates the ski tool assembly 26 along the guide 25. Pneumatic cylinder 2 pivotally mounted on pedestal 27
8. Two thin clamps that pivot the pneumatic cylinder 28 up and down, and a skiing tool 3 connected to the piston of the pneumatic clamp.
has 0. The skiing tool 30 is movable between a standby position (solid line position) where it does not contact the stacked paper 1 and an operating position (double-dashed line position) where it is inserted into the stacked paper 1 and lifts up the end of the rug 3.

Referring again to FIGS. 1 and 2, above the stack of paper I, there is a paper presser that presses the top surface of the stack of paper I to prevent the paper 3 from moving as a whole when turning up the edge of the paper. Ingredients (
(not shown) are arranged, and clamp hands 5, 5 held by a conveying device corresponding to 'I5 are provided so as to be able to descend from above the stacked paper I.

Next, the operation of turning up the paper edge by the above device will be explained.

Note that the following operations are automatically performed by a control device (not shown).

First, in FIGS. 1 and 2, the lifting platform 2 rises and stops at a position suitable for taking out an appropriate amount of paper 3 from the upper part of the stacked paper 1, and the upper surface of the central part of the stacked paper 1 Presser (not shown)
Next, the corner turning tool 6 operates, and the lever 13 turns up the corner IA of the appropriate amount of paper 3 (see Figure 3). The skiing tool 30 of 8 is inserted into 1 of the lifted paper 3 (Fig. 3), and in this state it moves from the corner 1A along the paper edge 1C and reaches the corner IE.
move to the vicinity of Thus.

The turning of the corner IA is propagated to the paper edge 1c, and the corner IE is also turned up.

Next, the turning lever 22 closest to the corners IA and IB is
The lever 22 pivots from the standby position to the operating position where it is inserted into the stack of paper l, inserts it under the folded corner 3, and further flips the folded 3.
is pivoted to the operating position to propagate the turning of the paper 3 to the center of the paper edge, and then the last turning lever 22 is pivoted to the operating position to propagate the turning to the edge of the paper. In this way, the entire paper edges IB and ID of the appropriate amount of paper 3 are turned over.

Next, the clamp hand 5.5 descends from above.

After the paper presser, which grips both ends of the turned-up paper 3 and presses the upper surface of the stacked paper 1, is retracted upward, the clamp hands 5, 5 transport the paper 3 to the next process. At this time, the paper edges IB and ID of the paper stack 3 are flipped up (the lever 22 is pressing down on the upper surface of the remaining portion of the stacked paper 1).

After the paper 3 is transported, the corner turning tool 6. The first and second paper end turning tools 7.8 return to their original positions and prepare for taking out the first paper. The same operation is repeated thereafter, and appropriate amounts of paper are taken out one after another.

Note that the above embodiment uses a clamp hand 5 for transferring the paper 3.
The clamp hand 5 is used when gripping both ends of the paper 3, but the present invention is not limited to this case, and when the clamp hand grips only one end 3 of the paper 3, for example, IB or IC, and transfers it. It is also applicable to In that case, it is only necessary to provide the first paper edge turning tool 7 or the second paper turning tool 8 to the paper edge to be turned up. In addition, when turning up the paper@IC using the second turning tool 8, if it is not possible to turn up the necessary part of the nine paper edges 1C with only one skiing tool assembly 26, the skiing tool assembly You may use more than one. Furthermore, in the above embodiment, the paper edge turning device 4 is provided at a predetermined height position.

The platform 2 on which the stack of paper 1 is placed is raised to a predetermined position each time a paper is taken out, but the table on which the stack of paper 1 is placed is fixed and the paper edge turning device 4 itself is moved to a predetermined position each time a paper is taken out. It may also be configured to be lowered to a certain position.

Furthermore, in the embodiment described above, a corner turning tool 6 is provided to turn over a corner of the stacked paper as a turning start tool for first turning over a part of the paper 3. However, the present invention is not limited to this configuration, and a turning start tool may be used that first turns over a part other than the corner, for example, approximately the center of the edge of the paper. FIGS. 7 and 8 are examples thereof. A turning-initiator 60 is shown. This starting tool 60 is as follows.

Rotary actuator 61. An arm 62 fixed to its rotating shaft. Pneumatic cylinder held by arm 62
'Da63. It has a lifting rod 64 held on the piston rod of the pneumatic cylinder 63 and the like. According to this turning start tool 60, from the state shown in FIG. 7, the end of the paper lifting rod 64 is inserted into the stacked paper 1 by the pneumatic cylinder 63, and then, as shown in FIG. A part of the center is lifted and turned over.

By arranging the first paper edge turning tool 7 or the second paper edge turning tool 8 as shown in the embodiment of FIG. IIJ Noh. Note that the structure of the turning start tool 60 is not limited to this, and can be changed as appropriate.For papers that are easy to turn, a pneumatic cylinder that takes out and takes out the lifting tip 64, or a rotary tip that swings. It is possible to turn over a sheet of paper using only either one of the two orifices, and omit the other.Also, the second paper edge turning device 8 used in the embodiment shown in FIG. 1 can be used as the turning device. is also possible.

Effects of the Invention As described above, the paper edge turning device of the present invention first turns over a portion 2 of the paper at the top of the stack, such as a corner or the center of the edge of the paper, and then moves the turning lever under the turned portion. By inserting the sheets one after another or inserting and moving the skid tool, the turning of the low corner is propagated to the edge of the paper, so it is possible to turn up an appropriate amount of one end of the paper in a good manner. This made it possible to hold the lamp hand as appropriate. As a result, it has become possible to mechanize the process of picking out appropriate amounts of paper from a large stack of paper and conveying it, which will greatly contribute to industrial development.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a sectional view thereof, FIG. 3 is a front view of the corner turning tool 6, FIG. 4 is a side view thereof, and FIG. A sectional view of the turning lever assembly 18 of the end turning tool 7, FIG. 6 is a side view of the skiing tool assembly 26 of the second paper end turning tool 8, and FIGS. 7 and 8 show a modification of the turning start tool. FIG. 3 is a perspective view showing the operating state of the turning-start tool. 1. Stacked paper 2. - Elevating platform 3. Paper 4 - Paper end turning device 5 - Clamp hand 6 - Corner turning tool (turning start tool) 7. First paper end turning tool 8 - Second paper End turning tool 13・
-・Lever 22-・Turning lever 30-・・
Ski tool 6 o - Turning start tool Patent applicant KBD Co., Ltd. Agent Patent attorney Kyo Matsu 3 Figure 1 Figure 2 Figure 2 Figure 4 Figure 5 Off view

Claims (3)

[Claims] (1) A turning-initiator placed near one corner or paper edge of a stack of paper, which turns up a part of the paper at the top of the stack; 1. A paper edge turning device for stacked paper, comprising a paper edge turning tool which is arranged to propagate the turning of a part of the paper by the turning start tool to the edge of the paper. (2) The paper edge turning device has a plurality of turning levers arranged along the paper edge, and each turning lever is inserted into a standby position where it does not contact the stacked paper and under the turned paper. A paper edge turning device according to claim 1, characterized in that it is pivotable between an operating position and an operating position. (3) The paper edge turning tool has a guide arranged along the paper edge and a skiing tool movably held by the guide, and the skiing tool is in a standby position where it does not touch the stacked paper. The paper edge turning device according to claim 1, wherein the paper edge turning device is movable between an operating position in which it is inserted under the turned paper.