JPH06199465A - Counting sorter of loading paper - Google Patents

Abstract

PURPOSE:To simplify a device as a whole by performing such a job as sorting a unit block from a stack of loading paper and taking out it with the only gripper, efficiently in a small space, while dispensing with a separator and a driver. CONSTITUTION:This counting sorter is provided with a counter 1 counting a stack of loading paper 4 and sorting a unit block 5 at a corner part 4a of this loading paper 4, the sole gripper 2 clamping the vicinity of a corner in and around the counter 1 of this sorted unit block 5, and a front patch 3 set up at a drawing side of the unit block 5, and it is so constituted that the unit block 5 is drawn out to the clamp side upon getting over an upper edge 3a of the front patch 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for counting and sorting out a fixed number of sheets from a stack of stacked sheets of sheets.

[0002]

2. Description of the Related Art A conventional counting / sorting device of this type, as typified by Japanese Patent Publication No. 59-1661, divides the corners of stacked sheets by a counter for counting every 100 sheets, for example. The separator is intervened in the corner division part of the counted unit block to move in the full width direction of the unit block and separate the end edge of the unit block over the entire width, and then the separation start end of the unit block is cut by the first gripper. In addition to clamping, the separation end is clamped by the second gripper, and in the so-called double-supported state, the first and second grippers are advanced to push the unit block to the side opposite to the side on which the counter is arranged and to the next step. It is designed to be used on the transportation line.

[0003]

SUMMARY OF THE INVENTION The conventional stacking sheet counting and sorting apparatus described above separates the edge of the unit block by a separator, and separates the separated starting end and separating end of the unit block into first and second parts. Since the unit block is clamped by the gripper to be held in both sides and the unit block is pushed out to the opposite side of the counter, that is, the side opposite to the clamp side, the transport line to the next step is the counter, the separator, the first and the second. 2 It must be provided on the side opposite to the operating mechanism such as the gripper, in other words, on the side opposite to the clamp side, and requires a large occupied space. Further, the structure is complicated because it has the first and second grippers that clamp the edge of the unit block and move it forward across the upper surface of the stacked sheets. In addition, since the unit block is pushed out to the side opposite to the clamp part as described above, in other words, since the lower surface of the push-out side of the unit block overlaps the stacking paper and is not restrained by the gripper, the stacking of the block when pushing out the block is performed. There is an inherent problem in that the topmost sheet of paper is accompanied by it, the bottommost sheet of a unit block is curled up, and a load collapse occurs.

[0004]

SUMMARY OF THE INVENTION The present invention provides a stacking paper counting / sorting device which solves the above problems, and specifically, counts the same stacking paper at the corners of the stacking paper. A unit block that divides the unit block into unit blocks, a unique gripper that clamps the vicinity of the corner dividing section of the unit block, and a front pad arranged on the pull-out side of the unit block. In the cantilevered state in which only the area near the corner section above is clamped, the block is configured to get over the front pad and be pulled out to the clamp side.

[0005]

The stacking paper counting / sorting device has a structure in which only the corner segmenting portion of the unit block is clamped by the only gripper and is pulled out to the clamp side, that is, the front side. Can be installed on the operating mechanism side of the counter and gripper, and the space occupied by the sorting device can be greatly reduced.

Further, since the unit block is pulled out to the clamp side which is constrained by the gripper, it is possible to solve the problem that the lowest sheet of the unit block which overlaps the stacked sheets is curled up or the load is collapsed. Further, since the unit block is pulled out beyond the front pad toward the side clamped by the gripper, it is possible to effectively prevent the top sheet of the stacked sheets from being brought together.

Further, since the unit block can be cantilevered and taken out by only one gripper, the structure is remarkably simplified.

[0008]

1 to 4 show an embodiment of a stacking sheet sorting device according to the present invention. As shown in FIG. 1, this sorting device comprises a counter 1, a unique gripper 2 and a front pad 3,
The counter 1 counts the corner portion 4a of the stacked paper 4 by a constant number and divides it into unit blocks 5, and the only gripper 2 clamps the corner dividing portion 5a of the counted unit blocks 5 and holds this clamp. Meanwhile, the gripper 2 is retracted to pull out the unit block 5 to the counter 1 side, and the upper edge 3a of the front pad 3 protruding above the upper surface of the stacking paper 4 under the unit block 5 is passed over and conveyed to the next process. Serve on the line.

A stack of sheets 4b, each of which has a large number of cut sheets 4b, is placed on a stack plate of a feeder capable of driving the feeder to stop moving up and down, and the upper level is always maintained by this feeder.

The counter 1 arranged in the vicinity of the corners of the stacking paper 4 has a sucker 1a sucking the corners 4a of the stacking paper 4 in order from above, and a sheet 4b sucked by the sucker 1a. It has a separate bar 1b, and the soccer 1a repeatedly swings up and down by a predetermined angle at a constant cycle and sucks up the sheet 4b each time, and the separate bar 1b synchronizes with the swing of the soccer 1a at a constant cycle. The sheet 4 which is swirled in a certain direction around the soccer 1a and sucked up by the soccer 1a in the course of the rotation.
The lower surface of b is supported in each case, and the number of the separated sheets 4b is counted by a signal output from the number-of-member motor that rotates the separating bar 1b. The turning of the bar 1b is stopped and the unit block 5 consisting of a constant number of sheets 4b is separated from the stacked sheets 4. The corner dividing portion 5a of the unit block 5 that has been divided and counted is arranged higher than the upper edge 3a of the front pad 3.

The gripper 2 has an upper claw 2a and a lower claw 2b. As shown in FIGS. 2 and 3, the operating mechanism 7 for supporting the gripper 2 has sliders 7b slidably mounted on a plurality of guide bars 7a, and one side of the sliders 7b is provided along the guide bars 7a. Providing an extending support member 7c,
A four-node link mechanism 7d in which the upper claw 2a of the gripper 2 is attached to the tip of the support member 7c and which is attached to the support member 7c.
The lower claw 2b is attached to the output end of the four-joint link mechanism 7
The tip of the piston rod of the gripper opening / closing cylinder 7e rotatably provided on the support member 7c is rotatably connected to the input end of d, and the lower claw 2b moves the upper claw 2a by the expansion / contraction operation of the gripper opening / closing cylinder 7e. Opening and closing (the gripper 2 opens and closes)
To do.

The slider 7b is connected to an endless belt 7f such as a timing belt arranged along the guide bar 7a, and one of the front and rear pulleys 7g and 7h around which the endless belt 7f is stretched is like a stepping motor. The motor 7i shown in FIG. 2 rotates the slider 7b forward and backward to reciprocally drive the endless belt 7f to move the slider 7b into the guide bar 7a.
Then, the gripper 2 is moved to the standby position and the clamp position for the corner dividing portion 5a.

The operation of the gripper 2 will be described in detail. After the corner portion 4a of the stacked paper 4 is divided by the counter 1 to form the unit block 5, the gripper 2 is moved from the standby position to the clamp position with the gripper 2 in the open state. Then, the lower claw 2b of the gripper 2 is inserted into the corner gap 8 formed between the lower surface of the unit block 5 and the upper surface of the lower stacking paper 4, and the upper claw 2a is arranged above the unit block 5. That is, the gripper 2 in the open state enters the corner dividing portion 5a of the unit block 5 located near the counter 1. FIG. 1B shows a state immediately before the gripper 2 enters the corner dividing portion 5 a of the unit block 5.

Next, as shown in FIG. 1C, the lower claw 2b of the gripper 2 that has entered the corner dividing section 5a of the unit block 5 is closed to clamp the corner dividing section 5a of the unit block 5 with the upper claw 2a. After that, the gripper 2 is moved backward from the clamp position to the standby position, and the unit block 5 is placed on the front pad 3 which is arranged higher than the upper surface of the lower stacking paper 4.
While pulling up the upper edge 3a, it is pulled out to the counter 1 side, that is, the clamp side, and the unit block 5 pulled out by this gripper 2 is applied to the side ruler 11 of the transport line 10 in the next step to correct the posture as shown in FIG. Then, after releasing the clamp by the gripper 2, the unit block 5 is moved to the rail 12
While being supported by the pusher 13, the pusher 13 intermittently travels along the rail 12 to push the pusher 13 to carry it out to the next step.

That is, as shown in FIG. 4, only the corner dividing portion 5a of the unit block 5 is clamped by the single gripper 2 and pulled out to the clamp side in a cantilever state, so that the transfer line 10 for the next process is counted by the counter 1. It can be installed on the operating mechanism side of the gripper 2 and the space occupied by the sorting device can be greatly reduced.

Further, as shown in FIG. 1C, since the unit block 5 is pulled out to the clamp side which is constrained by the gripper 2, the lowest sheet 4b of the unit block 5 which overlaps with the stacked sheets 4 is curled or the load is increased. The inconvenience of collapse can be eliminated.

Further, the upper edge 3a of the front pad 3 arranged on one side of the stacked paper 4 on the side where the unit block 5 is pulled out is arranged higher than the upper surface of the stacked paper 4 below the unit block 5.
As a result, when the unit block 5 is pulled out by the gripper 2, one side surface of the stacked paper 4 below the pulled-out unit block 5 is restricted and the uppermost sheet 4 of the stacked paper 4 is regulated.
When the unit block 5 is reliably prevented from being brought together, the unit block 5 can be favorably separated by pulling the unit block 5 while riding on the upper edge 3a of the front pad 3.

Further, in the present invention, as indicated by a phantom line in FIG. 4, the pressing member 9 is used as a unit between the end of counting by the counter 1 and the start of pulling out the unit block 5 by the gripper 2 to the counter 1 side. Block 5 and lower stack 4
Inserted in the corner gap 8 formed between the upper surfaces, the pressing member 9 presses the upper surface of the stacked paper 4 under the unit block 5 before the unit block 5 is pulled out to the counter 1 side by the gripper 2.
The separation and division of the unit block 5 can be further ensured.

[0019]

As described above, according to the present invention, only the corner dividing portion of the unit block is clamped by the only gripper, and the unit block is pulled out to the clamp side, so that the conveyor line to the next process is counted. It can be installed below the operating mechanism of the gripper, and the space occupied by the sorting device can be greatly reduced.

Further, by pulling out the unit block to the clamp side which is restrained by the gripper, it is possible to solve the inconvenient problems such as curling of the lowest sheet of the unit block overlapping with the stacked sheets and collapse of the load. Further, since the unit block is pulled out beyond the front pad toward the side clamped by the gripper, it is possible to effectively prevent the top sheet of the stacked sheets from being brought together.

Further, since the unit block can be taken out by only one gripper, the structure of the entire apparatus can be further simplified.

[Brief description of drawings]

FIG. 1 is a view for explaining the basics of a counting / sorting device for stacked sheets showing an embodiment of the present invention, in which A is a perspective view of a gripper clamping a unit block for counting and sorting;
B is a side view showing a state immediately before the gripper enters the corner dividing portion of the unit block, and C is a side view showing a state immediately after the gripper clamps the unit block and pulls it out to the counter side.

FIG. 2 is a plan view of the stacking sheet counting / sorting device according to the embodiment.

FIG. 3 is a side view of the stacking sheet counting / sorting device according to the embodiment.

FIG. 4 is a plan view illustrating a state in which the unit block of the embodiment is supplied to a carrying line in a next process.

[Explanation of symbols]

 1 Counter 2 Gripper 3 Front Pad 3a Front Edge of Front Pad 4 Stacked Paper 4a Corner of Stacked Paper 5 Unit Block 5a Corner Separator of Unit Block

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kahei Sato 5-15-13 Ichinomiya, Samukawa-cho, Takaza-gun, Kanagawa Prefecture (72) Shoichi Ishioka 1-3-27 Omagari, Sakawa-cho, Takaza-gun, Kanagawa Prefecture

Claims (1)

[Claims] 1. A counter that counts the stacked paper sheets at the corners of the stacked paper sheets and divides the stacked paper sheets into unit blocks, and a single gripper that clamps the corners near the counters of the counted and divided unit blocks, It has a front pad arranged on the pull-out side of the unit block, and is a cantilevered state in which only the corners of the unit block are clamped by the only gripper, and the block is pulled over to the clamp side over the front pad upper end. Stacking paper counting and sorting device characterized by