JPS60242149A - Paper handling device - Google Patents

Abstract

PURPOSE:To make it possible to handle papers so that apapers are easily slidable, by providing such an arrangment that, with one end of stacked papers being clamped, a movable pin is turned toward the end of the papers and is returned to its original position to shift the papers in the central direction to form an air layer between each adjacent papers. CONSTITUTION:When a large amount of stacked papers 6 are set on a paper receiving bed 2, the corner section of the stacked papers in a suitable amount is lifted up by means of a paper corner lift-up device 5, and rods in push-up devices 7, 8 are forced to enter into that part. The push-up device 8 is horizontally moved by means of a screw shaft 9 to lift up the stacked papers such that the one end edge of the stacked papers 6 is laid substantially vertically with its entirety. Then clamp handles 11 lower to insert the stacked papers 6 between a stationary pin 21 and a movable pin 22 which is inclined by a clamp air pressure cylinder mechanism to clamp the stacked papers 6. Then, the clamp handles 11 which clamp the stacked papers 6 are conveyed to a position above a paper aligning device by means of a chain 12, and the clamp of papers are released at that position to release the stacked papers which are then fed to the paper aligning device, thereby the automatization of the paper handling may be made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention enables stacked papers in which a large number of papers are stacked to be efficiently aligned using a paper aligning device.

The present invention relates to a paper sorting device for making each sheet of stacked paper slippery by impregnating air between them before being supplied to a sorting device.

Prior Art Papers discharged from a printing machine and stacked are not aligned at the edges, and are usually aligned by a paper alignment device. The paper alignment device has a tilted and vibrating table, and stacks of paper are placed on this table and vibrations are applied to the stacks of paper.

The two sheets are aligned by sliding each sheet of paper against the side plates on three sides. In order to properly align the paper with this paper alignment device, it is necessary that the spaces between each sheet slide well, but simply stacked papers do not slip well, so even if they are fed as is to the paper alignment device, good paper alignment cannot be achieved. . For this reason, conventionally, a method has been adopted in which an operator divides the paper to create air between the sheets, and then feeds the paper to a paper alignment device. As a result, a worker is required to feed the paper to the paper alignment device, resulting in poor work efficiency, and there is also the problem of a shortage of workers, as such paper sorting work is extremely difficult and requires skill. has also lived.

OBJECTS OF THE INVENTION The present invention was made in view of the current situation, and it is an object of the present invention to provide a paper sorting device capable of incorporating air between each sheet of stacked paper.

Structure of the Invention The paper handling device of the present invention includes a pair of clamp hands that grasp one end edge of a stack of paper 6 with an interval between them, and at least one of the pair of clamp hands 5, as shown in FIG. It has a fixed pin 21 and a movable pin 22, and the movable pin 22
The movable pin 22 is provided with a one-way clutch 31 to allow rotation in only one direction. This Gijuwaki device is shown in Figures 5 to 7.
As shown in the figure, while one end edge of the stacked paper 6 is clamped, the movable pin 22 is rotated around the fixed pin 21 toward the end of the paper (during this period, the movable pin rotates due to friction with the paper) 9 The movable pin does not rotate while it is then returned to its original position), thereby making it possible to shift the two sheets of paper toward the center and create an air layer between each sheet of paper so that each sheet of paper can easily slide.

EXAMPLES Hereinafter, preferred embodiments of the present invention shown in the drawings will be described in detail.
I will clarify.

3 and 4 are a plan view and a sectional view of the main parts of a paper feeding device equipped with the paper handling device 1 of the present invention. In the figure, reference numeral 2 denotes a paper tray, on which a large amount of stacked paper 3 is placed and pressed down by a presser roll 4. 5 is a low corner lifting device that contacts the corner of the stacked paper 3 and lifts up an appropriate amount of the corner of the stacked paper 6; 7.8 is a low corner lifting device that pushes the vicinity of the lifted low corner to further lift the stacked paper 6; The first, equipped with a push rod to push up;
This is the second pushing up device. Although the first push-up device 7 is fixed at the position shown in FIG. 3, the second push-up device 8 is movable along the paper by a spring shaft 9. Usually, the second pushing up device W8 is located near the first pushing up device 7, and the second pushing up device W8 is located near the first pushing up device 7.
After pushing up the vicinity of the corner of the stacked paper 6 with the push-up device 7, the stacked paper 6 is moved to the position shown in FIG.
It has the effect of lifting the entire one end edge upward as shown in Fig. 4.

The paper sorting device 1 has a pair of clamp hands 11 that grasp one end edge of the stacked paper 6 with a gap between them.
3. The chain 12 is arranged to move the clamp hand 11 between the illustrated stacked paper gripping position and a position above a single paper alignment device (not shown).

The clamp hand 11 is as shown in FIGS. 1 and 2.

Case 20 fixed to bracket 13 and case 20
It has a fixed pin 21 and a movable pin 22 that extend outward from the center and sandwich the stacked paper 6. The fixing pin 21 is fixed to the case 20. A holder 23 is rotatably provided in the case 20 on the same axis as the fixing pin 21 .

The holder 23 has a holder bracket 24. A pivot lever 26 is attached via a pin 25. The moving pin 22 is rotatably held at one end of this pivot lever 26,
By pivoting the pivot lever 26 about the pin 25, the tip of the movable pin 22 can approach or move away from the fixed pin 21. The holder 23 further holds a clamping pneumatic cylinder mechanism 28 by a trunnion bracket 27, and the pneumatic cylinder mechanism 28 is connected to the other end of the pivot lever 26 via a joint 29. Thus, the pneumatic cylinder mechanism 28 constitutes a means for moving the movable pin 22 such that its tip approaches and moves away from the fixed pin 21 in order to clamp and release the paper stack 6. Note that the means for pivoting the pivot lever 26 is not limited to the pneumatic cylinder mechanism of the embodiment, but other mechanisms such as a hydraulic cylinder mechanism or a rotary actuator may be used.

As mentioned above, the pivot lever 2 holding the moving pin 22
6 and the pneumatic cylinder mechanism 28 are both held in the rotatable holder 23, so the fixing pin 21 as a whole
In other words, the movable pin 22 is rotatable around the central axis of the fixed pin 21 regardless of its inclination angle. As a means for performing this turning movement, the holder 23 has a turning pneumatic cylinder mechanism 3.
0 is concatenated. Instead of the pneumatic cylinder mechanism 30,
A hydraulic cylinder mechanism or a rotary actuator may also be used.

A one-way clutch 31 is attached to the upper end of the moving pin 22. The one-way clutch 3I allows the movable pin 22 to rotate in one direction but prevents it from rotating in the opposite direction, and the direction of rotation is as shown in FIG. 6 when the stacked paper 6 is clamped. When the movable pin 22 turns around the fixed bin 21 toward the end of the paper, it is allowed to rotate (rotate) due to friction with the paper, but is prevented from rotating in the opposite direction.

Next, paper feeding and paper handling operations by the above-mentioned apparatus will be explained. In FIGS. 3 and 4, a large amount of stacked paper 3 is placed on a paper tray 2 in the paper tray. First, an appropriate amount of the corner of the stacked paper 6 is lifted by the corner lifting device 5, and the push rods of the first and second lifting devices 7, 8 are pushed into the corner.

Next, the second lifting device 8 is moved horizontally by the screw shaft 9, and the entire one end edge of the stacked paper 6 is lifted up so that it becomes substantially vertical. Next, the clamp hand 1 descends from above, inserts the stacked paper 6 between the fixed pin 21 and the movable pin 22, and uses the pneumatic cylinder mechanism 28 for clamping to move the movable pin 22 to two points as shown in FIG. Clamp the stacked paper 6 at an angle shown by the chain line. The clamp hand 11 that has clamped the stacked paper 6 is transferred by a chain 12 to an area above an alignment device (not shown).

The clamp is released at the end to release the stacked paper, and the stacked paper 6 is fed to the alignment device.

The clamp hand 11 clamps the stacked paper 6 and moves it, or stops during the movement, and paper handling is performed in the procedure shown in FIGS. 5 to 7. That is, from the position where the movable pin 22 is shown in FIG. 5, with the stacked paper clamped, around the fixed pin 21 as shown in FIG.

Turn towards the end of the stack. At this time, the movable pin 22 rolls on the surface of the paper and rotates (rotates) due to friction with the paper. The moving pin 22 then pivots around the fixed pin 21 in the original direction to return to the state shown in FIG. At this time too,
The moving pin 22 tries to rotate due to friction with the paper, but
Since this rotation is blocked by the one-way clutch 31,
The moving pin 22 moves toward the center of the paper without rotating. Therefore, the paper is shifted toward the center due to the frictional force between the moving pin 22 and the paper.

As shown in FIG. 7, the central portion of the paper swells, creating an air layer in this portion, and air is trapped between the sheets of stacked paper 6. This completes the paper handling operation. Thus.

The stacked papers 6 that have been sorted by the pair of clamp hands 11 contain sufficient air between the sheets, making them easy to slip, so that they can be well aligned in the alignment device.

In the above embodiment, both of the pair of clamp hands 11 have the function of not shifting the paper toward the center, but it is not necessary for both of the clamp hands to have this function; It may be something that only clamps the heavy paper 6.

Effects of the Invention As described above, according to the present invention, by simply reciprocating the movable pin 22 that clamps the stacked paper 6 around the fixed pin 21, air can be included between each sheet of the stacked paper 6. It can be made slippery. Therefore, it has become possible to mechanize the gyoza work, which previously relied on skilled workers.

As a result, an excellent effect is achieved in that it becomes possible to develop an automatic feeding device for paper aligning devices.

[Brief explanation of drawings]

FIG. 1 shows a clamp hand 11 used in an embodiment of the present invention.
2 is a horizontal sectional view thereof, FIG. 3 is a plan view of a main part of a paper feeding device using the paper handling device 1 according to an embodiment of the present invention, and FIG. 4 is a sectional side view of the same. FIGS. 5 to 7 are diagrams for explaining the paper handling operation by the clamp hand 11. FIG. 1-Paper sorting device W 2-・Paper receiver is stand 3.6-Stacked paper 4-・Press roll 11-Clamp hand 12-Chain 13--Bracket 20-Case 21-Fixing pin 22-Moving pin 23-Holder 26 - Pivoting lever 28. 30 - Pneumatic cylinder mechanism 31 - 11 One-way clutch agent Patent attorney Kyo Matsu 3 Fig. 2 ± 3 Fig. 4 Fig. Fig. 5

Claims (1)

[Claims] This is a shuffling device for inserting air between each sheet of stacked paper, and is equipped with a pair of clamp hands that grasp one edge of the stacked paper with a gap between them, and at least one of the pair of clamp hands is , a fixing pin that contacts one side of the stack of paper;
A rotatable movable pin that contacts the opposite side of the stacked paper and pinches the stacked paper; a means for moving the movable pin so that the tip of the movable pin approaches and separates from the fixed pin; means for pivoting the fixed pin about a central axis;
A paper handling device comprising a one-way clutch that allows rotation of the movable pin in one direction but prevents rotation in the opposite direction.