JPS647933B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to paper having a size of about the same size as a whole paper, for example, 1000 mm x
The upper layer of a stack of 1250mm rectangular papers,
For example, it relates to a device that lifts about 1000 sheets.

Conventionally, when transporting printed sheets of paper to a cutting machine at a printing factory, etc., one person could only carry a few dozen sheets at a time, and the paper would have to go back and forth more than ten times for one cutting process. It was an unusual situation.

Also, conventionally, for example, in Japanese Utility Model Publication No. 55-47779,
A device is disclosed that grasps one end of the top layer of a stack of papers and pulls it horizontally toward the grip, but it is not possible to lift the top layer of paper vertically.

An object of the present invention is to provide a lifting device that can transport paper in a stacked state, instead of the paper transport work that was conventionally carried out manually in dozens of steps. be.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the entirety of the present invention, and FIG. 2 is a side view of the embodiment shown in FIG.

The bed 1 is elongated in the left and right directions on the floor surface, and a carriage 8 is provided on the bed 1 to reciprocate in the left and right directions by a motor 3 and a feed screw 4. Multiple columns 5, 5
A feed screw 6 at the center is established, and a lifting platform 9 is supported by these columns and the feed screw, and is displaced in the vertical direction by a motor 10 on the top plate 7. The devices on these carriages constitute the tower 2.

A cantilever bridge 11 extends in front of this elevator platform 9, and a central elevator chamber 12 is provided below the base of the cantilever bridge 11. Wires 13 are connected to the left and right sides of the upper part of the central elevator chamber 12. 13 is led behind the tower 2 via pulleys 14, 14 on the top plate, and a balance weight 15 is suspended from the tip.

The cantilever bridge 11 consists of a longitudinally moving shaft 16 and its holding portion 17, and the moving shaft 16 is displaced in the longitudinal direction by a motor 18. A longitudinally moving head 19 is provided at the tip of the longitudinally moving shaft 16, and the head 16
first guide rods 20, 20 in the left and right horizontal directions from
The feed screws 21, 21 extend parallel to each other. A left paper holding device 22B is provided on the first guide rods 20, 20, respectively, and feed screws 21, 2
Its position can be adjusted by turning 1.

On the other hand, a second guide rod 2 extends from the central elevator chamber 12 in the left-right horizontal direction in parallel with the first guide rod.
3 and 23 extend, and a left paper receiving head 24A and a right paper receiving head 24B are provided at both ends, respectively. Rotating shafts 25A, 25B protrude below both paper receiving heads 24A, 24B, and paper receiving arms 26A, 26B are attached to the rotating shafts 25A, 25B.
is installed.

As shown in FIG. 5, the planar shape of the paper receiving arms 26A, 26B is similar to the ζ-shape of a Greek small letter as a whole, that is, in the returned state, both the rotation shafts 25A, 25B and the tip 48 should be lifted up. The central curved portion 49 closest to the paper is furthest from the paper and is curved in a round shape, and the shape seen from the front is a plate-like shape along a horizontal plane as shown in FIG. 3, and the edge 50 facing the paper It is pointed like a single-edged knife edge. Further, as is clear from FIG. 5, the length from the rotating shaft 25 to its tip is more than 1/2 of the long side of the rectangle P. In addition, in Figure 5,
A two-dot chain line Q indicates a lifted state, and a two-dot chain line R indicates an open state when the paper is dropped after being conveyed.

A paper partitioning device 27 is provided at the lower end of the front surface of the central elevator chamber 12 to partition the upper layer from the stacked papers. As shown in FIG. 3, this paper partitioning device 27 includes a first partitioning member 28 provided at the center,
Second partition members 29A, 2 provided on both left and right sides thereof
9B, push-out combs 30, 30 that move together with the second partition member, and a sensor 3 that detects the top surface of the paper.
6. The first partition member 28 can be displaced in the front-rear direction and can also be displaced downward,
Second partition members 29A, 29B and extrusion comb 3
0 and 30 are displaced only in the front-back direction. That is, the fourth
As shown in the figure, the first partition member 28 includes a partition member mounting base 3 that is supported from the side surface of the central elevator chamber 12 so as to be movable in the vertical direction along a guide rod (not shown).
The movable member 39 is fixed to the front surface of a movable member 39 that is slidably displaced in the front-rear direction with respect to the partition member 8, and this displacement in the front-rear direction is performed by a feed screw 43 rotated by a first partition member drive motor 40. On the other hand, the partition member mounting base 38 is connected to a roller 41 that abuts on the second partition member 29, and in the return state, the roller 41 is on the second partition member 29 as shown in the figure, so the height is high. position, but when the second partition member 29 moves forward, the roller 4
1 is lowered, and the partition member mounting base 38 is accordingly displaced downward due to its own weight. That is, the rear half of the second partition member functions as a cam. The second partition member 29 and the extrusion comb 30 are integrally formed and are displaced in the front-rear direction by a feed screw 45 rotated by a second partition member driving motor 44.

As shown in FIG. 2, the paper holding device 22 includes a rod 31 that projects downward and is displaceable up and down, a paper receiving shelf 32 that rotates about the lower end of the rod as a fulcrum, and a rotation of the paper receiving shelf 32. In order to do this, it has a link 33 that is displaceable in the vertical direction, and a paper retainer 34 that is provided oppositely above the paper receiving shelf and expands and contracts by a built-in spring. You can hold the edges.
An air nozzle 35 for injecting air between the sheets of paper to be carried is disposed below the back and forth moving head 19 and communicates with an air pump (not shown).

Next, the action will be explained.

It is assumed that the papers P to be transferred are stacked in front of the left end of the bed 1 and are transferred to the right along the bed 1. The positions of the left and right paper holding devices 22A, 22B and the position of the back and forth moving head 19 are set in advance according to the size of the paper. The operations of each section described below proceed automatically according to a preset program of the sequence controller.

When the elevator platform 9 of the tower 2 descends and the sensor 36 detects the top surface of the stacked papers and the elevator platform 9 stops, the height of the paper partitioning device 27 is adjusted to match the upper layer to be transported and the remaining paper. Located at the border.

First, the first partition member 28 penetrates between the sheets of paper. Next, the second partition members 29A, 29B,
The extruded combs 30, 3 penetrate into the gap formed by the penetration of the first partition member and are integral with the second partition member.
0 pushes the upper layer of paper forward by several centimeters. This state is shown by the chain line in FIG. In parallel with the second partition member and extrusion comb extruding the upper layer of paper,
The first partition member 28 descends slightly to widen the gap. Next, the paper receiving arms 26A and 26B are rotated and inserted into the enlarged gap sequentially from the tip, and when the entire arm is inserted, it stops to support both left and right sides of the paper. In parallel with this rotation of the paper receiving arm, the left and right paper holding devices 22A and 22B hold the left and right ends of the protruding side of the extruded upper layer, and then the feed screw 21 is slightly rotated to hold the left and right ends of the protruding side of the upper layer. The interval between the parts is shortened to bend the central part of the paper, and at the same time, air is blown between the leaves in the upper layer from a blowing nozzle 35 to loosen the paper.

When the lifting platform 9 is raised while continuing this air blowing, the upper layer of the paper is moved to the second partition device 29A, 29.
B, it is lifted by the paper receiving arms 26A, 26B and the paper holding devices 22A, 22B. Next, the entire tower on the carriage 8 is moved to a predetermined position on the right. Therefore, the paper receiving arms 26A, 26B are further expanded outward, and at the same time, the paper holding devices 22A, 22B are expanded outwardly.
If the paper is loosened, the transported paper will fall onto a predetermined table. After the paper falls, the paper receiving arm 26A,
26B is returned to its return state, the carriage is returned to the left, and the next lifting operation is started.

According to the present invention, the first and second partition members are inserted into the center of one of the long sides of the rectangular accumulated paper to be lifted, and the pair of left and right paper receiving arms are inserted from one of the long sides. The tip is rotated to both the left and right sides, and the lifting platform is lifted vertically with the other long side held by the paper holding device, so even if the paper is full-sized, the upper layer of about 1000 sheets can be lifted vertically. It can be lifted and held stably without falling. Therefore, by relatively moving the elevating table and the stacked paper mounting table, the paper can be transferred to any desired location. Further, the paper to be lifted is first penetrated through the first partition member, then the second partition members are penetrated on both sides of the first partition member, and at least one of the first and second partition members is simultaneously displaced in the vertical direction. After forming a clear gap between the remaining papers on the upper layer, the pair of left and right paper receiving arms penetrates into the gap from the tips, and gradually rotate so that the central curved part lifts both sides of the paper. Because of this structure, even if the paper is thin, weak, and large like a whole sheet, the upper layer to be lifted is clearly separated from the rest of the paper, and there is no discrepancy between the lifting points on the left and right sides. .

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the entire embodiment of the present invention, Fig. 2 is a side view of the embodiment shown in Fig. 1, Fig. 3 is a front view showing the vicinity of the partitioning device of the embodiment shown in Fig. 1, and Fig. 4 is a Third
FIG. 5 is a plan view showing the paper receiving arm of the embodiment shown in FIG. 1 and its surroundings. 1... Bed, 2... Tower, 9... Elevating platform, 11... Cantilever bridge, 12... Central elevating room, 22A, 22B...
Paper holding device, 25A, 25B... Rotating shaft, 26A,
26B...Paper receiving arm, 27...Paper partition device, 28
...first partition member, 29A, 29B...second partition member.

Claims (1)

[Claims] 1 A device for lifting stacked rectangular papers of the size of a whole sheet of paper, with a first device that penetrates to a predetermined depth into the center of one of the long sides of the stacked rectangular papers.
a partition member 28, second partition members 29A and 29B that are near the first partition member and penetrate later than the first partition member, and a second partition member 29A and 29B that penetrate later than the first partition member; and second partition member 2
8, 29A, 29B to create a gap between the upper layer of the stacked paper and the remaining paper, and the tip 48 in the returned state A pair of left and right papers disposed near both edges of one of the long sides of the rectangular cumulative paper that is close to the left and right sides of the first and second partition members 28, 29A, 29B and to be lifted by the rotating shafts 25A, 25B. Receiving arms 26A, 26B
and the rotating shaft 2 of the paper receiving arms 26A, 26B.
power means for rotating 5A and 25B to a state where the arms in the returned state can support the upper layer of square paper on both left and right sides of the stacked square paper; and the upper layer partitioned by the penetration of the first partition member. a paper holding device 22 for holding the other long side of the accumulated paper; the first and second partition members 28, 29A, 29B;
The separating device 41, 42, etc., the rotating shafts 25A, 25B of the paper receiving arm and its power means, and the elevating table 9 that integrally supports the paper holding device 22 and displaces it in the vertical direction are provided. The tips of the paper receiving arms 26A and 26B penetrate into the gap created, and the rotation of the paper receiving arms by the power means displaces the paper receiving arms along the lower surface of the upper part to the state where they can be supported, A device for lifting an upper layer of stacked papers, wherein the upper layer is vertically lifted by the second partition members 29A, 29B, the paper receiving arms 26A, 26B, and the paper clamping device 22.