JPH0767985B2 - Paper separation delivery method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a paper separating method in which a predetermined number of laminated paper sheets are separated and sent to the next step.

(Prior Art) Conventionally, as a paper separating device, there is one disclosed in JP-A-61-188342.

That is, it is composed of a pallet elevating device that places stacked papers on a pallet and can be raised and lowered, and a separating device that separates the stacked papers up and down by a ream marker of the stacked papers. Each step of the automatic paper feeding device, which is composed of a sensor for detecting and an insertion head having a suction port for sucking the ream marker, includes the following.

The first ascending process of stacking the paper piled up on the pallet PT to raise the elevating table, the inserting process of inserting the paper according to the ream marker tape by the inserting head, and the entire head frame part and the paper above the inserting head. It comprises a second raising step and a feeding step of inserting and feeding the fork portion while the paper is picked up by the insertion head.

(Problems to be Solved by the Invention) However, in the above process, the first raising process operates, then the inserting process operates, then the second raising process operates, and the delivering process operates. Therefore, there is a problem that the cycle time becomes long when a large number of reams are sent out in one minute.

(Means for Solving the Problems) In order to solve the above problems, in the paper separating and feeding method of the present invention, a laminated paper having a mark divided for each ream, and the laminated paper can be placed and moved up and down. A lifter, an insertion head that can be raised and lowered and moved forward and backward, and a fork that can be moved forward and backward are placed near the laminated paper, and the insertion head is inserted below the laminated paper of one ream in an upper position, and then , The insertion head is lifted to form a gap, and the fork is inserted into the gap to separate the laminated paper of the one ream positioned above from the laminated paper positioned below the laminated paper of the one ream. And the fork is retracted, the fork is retracted, and then the lifter is raised to sequentially separate and feed the one-ream laminated paper in the upper position. In the paper separating and feeding method for ejecting, while the upper one-ream laminated paper is delivered by the fork, the mark of the one-ream laminated paper under the upper one-ream laminated paper is removed. The detection operation is performed in parallel with the operation of inserting the insertion head into the one-ream laminated paper under the one-respective laminated paper located above.

(Example) The reference numeral 100 in FIG. 1 indicates an automatic sheet feeder, and the automatic sheet feeder 100 is a flat sheet wrapping machine E (first sheet) for each ream of the laminated paper 7 sent from a conveyor (not shown). (Fig. 4).

The automatic paper feeder 100 is roughly composed of a pallet lifting device A, a positioning device B, a paper separating device C and a feeding device D.

The pallet lifting device A has the following configuration.

That is, the servo motor 2 for raising and lowering the pallet 6
Riding the chain 3, the lifter 1 and the lifter 1 connected to the chain 3, the twisting rotation change of the laminated paper 7 (Fig. 4) and the bending change with respect to the perpendicular line (Fig. 5) are detected by separate sensors, Laminated paper 7 which is controlled so that the ream sent out to the flat wrapping machine E is at a constant distance from the flat wrapping machine E and in parallel with the center line of the flat wrapping machine E.
It is composed of a table 4 for positioning, a conveyor 5 and the like for loading and unloading the pallet 6 when the lifter 1 is on the table 4 and is located at the bottom. The pallet 6 and the laminated paper 7 on it are mounted on the conveyor 5.

The positioning device B has the following configuration (see FIG. 1).

That is, the base 8 of the positioning device B, the screw 9 and the nut 10 for moving the X-axis unit 11 on the base 8 left and right with a handle (not shown), and thereby the X-axis unit 11 on the right and left X on the base 8. The shaft unit 11 slides. X-axis unit
Screws 13 and guides 12 fixed to 11 for moving the unit 14 at the time of Z up and down with a handle (not shown).
And a slider 15, whereby the Z-axis unit 14 slides up and down on the X-axis unit 11. Further, a Y-axis unit 17 slides back and forth by operating a handle (not shown) of a screw 16 fixed to the Z-axis unit 14. A guide 18 is fixed to the Y-axis unit 17, and the slider 19 is
It can be manually moved to the left or right (U axis parallel to the X axis) along 18.

The U axis is for moving only the paper separating device C.

Below the slider 19, a paper separating device C is attached via an indexing unit 20 capable of manually indexing every 90 ° by dividing one rotation into four. With the function of the positioning device B, the paper separating device C can be positioned at any position on the X, Y, Z axes by a handle (not shown) operation, and by moving the U axis manually, It is possible to index 90 ° in any position and horizontally.

Further, the feeding device D can be positioned together with the paper separating device C at an arbitrary position on the X axis by operating a handle (not shown). These have laminated paper sizes of, for example, 420 x 530 mm
A wide change such as 920 × 1300 mm (FIG. 6) and a ream marker 70 (a mark for separating a predetermined number of laminated sheets 7 from each other, that is, a ream marker, for example, a ream marker.
This corresponds to the fact that the insertion position of 70) is at any of the four positions (FIG. 7) even for laminated paper of the same size.

Further, the lower paper presser 28 is pressed to the positioning device B so as to hold the lower paper so that it does not move when sending one ream of the laminated paper 7.
Are attached to the left and right respectively. This is because the insertion position of the ream marker 70 is M ₁ or M ₂ or M ₃ or M _{4 in FIG.}
Either one of the lower paper presser 28 is selected and used. As shown in FIG. 3, the lower paper presser 28 has a structure in which it can be moved forward and backward and up and down by a front and rear air cylinder 281 and a vertical air cylinder 282.

The gantry 8 of the positioning device B is mounted on the stage 29. The sizes of the laminated paper 7 are greatly different as shown in FIG. 6, and the table 4 for determining the position of the laminated paper 7 is controlled so that the gap between the flat sheet wrapping machine E and the laminated paper 7 is always constant. Therefore, the stage 29 is also controlled back and forth following this. As a result, the gap between the positioning device B and the laminated paper 7 is always constant. The stage 29 is similarly controlled in order to improve workability even when the paper feeding operation is performed manually without installing the automatic paper feeding device.

The paper separating device C has the following configuration (see FIG. 2).

That is, there is a separation unit connecting plate 50 which is connected to the positioning device B via the indexing unit 20, and the insertion head mounting plate is provided by the insertion air cylinder 51 fixed thereto.
53 is moved back and forth in the direction of arrow S-S, and the insertion head 56 is movable back and forth. The guides 52a and 52b are for receiving loads.
An ascending air cylinder 54 for raising and lowering the insertion head 56 is fixed to the insertion head attachment plate 53, and the insertion head 56 is vertically movable. The guides 55a and 55b are for receiving loads. The insertion head 56 has a bellows 57. The insertion head 56 inserts the laminated paper 7 into the laminated paper 7 in order to separate the laminated paper 7 up and down with the ream marker 70 as a boundary.
The insertion head 56 is inserted from the lower surface of the ream marker 70 along the surface of the ream marker 70 via the bellows 57 so as not to scratch the paper as much as possible. A marker holder 58 of an air cylinder is fixed to the insertion head 56. When the insertion head 56 presses the ream marker 70 from above when the insertion head 56 is completely inserted into the laminated paper 7 by the marker holder 58, the insertion head 56 is pulled out from the laminated paper 7. , For surely pulling out the ream marker 70 together.

Further, there is a tape sensor 69 (for example, a photoelectric switch) for confirming that the ream marker 70 has been pulled out.

A pressing plate 66 is connected to the connecting plate 50 of the paper separating device C via a slider 65. A roller 68 is fixed to the pressing plate 66, and the spring 67 is attached between the connecting plate 50 of the paper separating device C and the pressing plate 66. Therefore, the roller 68 is pressed against the side surface of the laminated paper 7, Even when the laminated paper 7 is bent with respect to the vertical line as shown in FIG.
This is to keep a constant distance from the pressing point of.

Although the spring 67 is used in the above embodiment, the present invention is not limited to this, and an air cylinder may be used, for example.

The following devices are connected to the pressing plate 66.

That is, as shown in FIG. 8, a bellows guide 59 which holds the ream marker 70 from above and also serves as a guide for the bellows 57, and a mark sensor for determining a stop position when the pallet lifting device A ascends as shown in FIG. The light projectors 60a, 60a and the light receivers 60b, 60b are attached to the bellows guide 59 with the ream marker 70 as shown in FIG. 8 and lifted upward so that the insertion head 56 can be easily inserted. A holder up / down air cylinder 63 for pulling up, a holder left / right air cylinder 61 for approaching the holder 64 directly below the ream marker 70, and a holder connecting plate 62 for connecting the holder up / down air cylinder 63. The holder 64 and the holder vertical air cylinder 63 are coupled to each other via a rod 63a. Holder connecting plate 62, holder up / down air cylinder 63
Are inclined with respect to the insertion head 56 (FIG. 2).

That is, as shown in FIG. 8, the holder 64 is tilted so as to flip up the ream marker 70 from the position indicated by the dotted line to the upper part of the lick as shown by the arrow.

In addition, as a holding means for holding the ream marker 70,
Although the bellows guide 59 and the holder 64 are used, the present invention is not limited to this.
For example, a suction port (not shown) for sucking the ream marker 70 may be provided on the lower surface of the bellows guide 59 to hold the ream marker 70.

These devices are always kept at a constant distance from the sides of the laminated paper 7. Therefore, the transmitters 60a, 60a and the light receivers of the mark sensor
Since 60b and 60b can be placed close to the sides of the laminated paper 7,
It is possible to suppress the fluctuation of the pallet rising stop due to the dripping of the ream marker 70 as much as possible. Also, the bellows guide 59 has a feature that it can always be arranged from the side of the laminated paper 7 in an optimum fixed process. Mark sensor light emitters 60a, 60a and light receiver 6
Since 0b and 60b are detected by irradiating light rays in the plane direction of the ream marker 70 (paper tape), there is a possibility that it cannot be detected if the thickness thereof is thin. Therefore, at least two sets of transmissive photoelectric switches are used by hanging them, and one of them is a ream marker.
If it detects 70, it will stop lifting the lifter. The state is shown in FIG. As a result, even the ream marker 70 having a small thickness can be reliably detected.

The insertion head 56 guides the ream marker 70 to the laminated paper 7
FIG. 9 shows the insertion into the inside. This will be explained below.

FIG. A shows a state immediately before insertion, that is, a state in which the ream marker 70 protruding from the laminated paper 7 is pressed by the bellows guide 59 from above and the holder 64 scoops and holds from below to easily insert the bellows 57. It shows that it has become.

FIG. 5B shows a state in which the insertion head 56 has advanced slightly and the tip of the bellows 57 is in contact with the ream marker 70.

In Fig. C, the insertion head 56 is further advanced, and the bellows 57 is the laminated paper 7.
It shows the state of having come to the end face position of. In this state, the laminated paper 7 is slightly lifted by the bellows 57. The bellows 57 has a seesaw shape centered on the tip of the insertion head 56 so as to follow the ream marker 70 as much as possible. As a result, the bellows 57 is inserted into the laminated paper 7 using the ream marker 70 as a guide.

FIG. D shows the state in which the insertion head 56 is further advanced and the tip of the insertion head 56 is at the position of the end face of the laminated paper 7. Since the bellows 57 is below the ream marker 70, there is almost no risk of scratching the laminated paper 7.

Figure e shows the insertion head 56 fully inserted between the laminated sheets 7. Since the bellows 57 are made of a thin plate and made of an elastic material, even in the state shown in FIG. 8E, the tip end portion is configured to follow the slope of the lower surface of the laminated paper 7 by the load of the laminated paper 7.

In the above embodiment, the transmission type photoelectric sensor (light projector 60a, 60a, light receiving 60b, 60b) is used as the mark sensor, but the mark sensor is not limited to this, and may be a reflection type photoelectric sensor, for example.

When detecting the height of the ream marker 70, the sensor (light transmitter 60a, 60a light receiver 60b, 60b) is used to detect the height as shown in FIG.
Since the ream marker 70 is bent downward or bent upward as shown in FIG. 11a and is not constant, the height detection position of the ream marker 70 fluctuates up and down. Air cylinders for the left and right holders to further improve the detection accuracy of the ream marker 70
A plate 191 fixed to 61 may be provided. By this plate 191, the ream markers 70 are aligned in a fixed direction as shown in FIG. 11b, the height of the ream markers 70 does not fluctuate up and down, and the insertion head 56 can be stably inserted.

Further, the position of the ream marker 70 may be slightly shifted in the lateral direction. When the position of the ream marker 70 is largely deviated in the lateral direction, the insertion head 56 cannot be inserted into the lower surface of the ream marker 70, and the paper is damaged. In order to prevent this, a sensor 90 that detects the position of the ream marker 70 is provided, and a control unit 91 that movably controls the insertion head 56 according to the detection state of the sensor 90 is provided.

That is, the guide 59 and the sensor 90, for example, a ream light projector
90a Ream center projector 90b Ream left projector 90c is provided, and a light receiver (not shown) is provided so as to correspond to each of these projectors 90a, 90b, 90c.

That is, 101 to 111 in FIG. 14 indicate respective switches in the flowchart.

First, it is determined in step 101 whether or not the ream marker 70 is located at the position of the ream center projector 90b. If the ream marker 70 is located, the light is blocked, and the light receiver (not shown) corresponding to the ream center projector 90b does not receive the light. In this case, the process proceeds to step 102.

If light is received, the process proceeds to step 103.

In step 102, it is determined whether or not the ream marker 70 is located at the position of the ream light projector 90a. When the ream marker 70 is located, the light is blocked and the light receiver (not shown) corresponding to the ream light projector 90a does not receive the light. In this case, the position of the ream light projector 90a is judged to be slightly to the right, and the process proceeds to the next step 104. If light is received, the process proceeds to step 105.

In step 104, the insertion head 56 is moved to the right for correction, and the process returns to step 101.

In step 105, it is determined whether or not the ream marker 70 is located at the position of the ream left projector 90c. If the ream marker 70 is located, the light is blocked, and the light receiver (not shown) corresponding to the ream left projector 90c does not receive the light. In this case, it is determined that the left position is slightly leftward, and the process proceeds to the next step 106. When the light is received (the position of the ream marker 70 is in the state shown in FIG. 12c), go to step 107. When the light is received, it is judged that the position of the ream marker 70 is normal, and step 107 (moves to the next step. That is, the insertion head 56 moves forward and moves to the operation of separating the laminated paper 7 in units divided by the ream marker 70. .).

In step 106, the insertion head 56 is moved to the left for correction, and the process returns to step 101.

In step 103, it is determined whether or not the ream marker 70 is located at the position of the ream light projector 90a. When the ream marker 70 is located, the light is blocked and the light receiver (not shown) corresponding to the ream light projector 90a does not receive the light. In this case, it is determined that the position of the ream light projector 90a is to the right, and the process proceeds to the next step 108. If light is received, the process proceeds to step 109.

In step 108, the insertion head 56 is moved to the right for correction, and the process returns to step 101.

In step 109, it is determined whether the ream marker 70 is located at the ream left projector 90c. If the ream marker 70 is located, the light is judged and the light receiver (not shown) corresponding to the left left projector 90c does not receive the light. In this case, the position of the left left projector 90c is determined to be leftward, and the process proceeds to the next step 110. When light is received (the position of the ream marker 70 is in the state shown in FIG. 11d), the process proceeds to step 111.

In step 110, move the insertion head 56 to the left,
Make corrections and return to step 101. Through the above steps, the insertion head 56 is guided to the position of the ream marker 70.

In step 111, it may be determined that the position of the ream marker 70 is significantly apart from the insertion head 56 and the operation is stopped, or a means for stopping the operation and notifying a person by a warning sound or the like may be used. The movement of the insertion head 56 is performed by the insertion head driving means 92.

In the above embodiment, the sensor 90 is a transmissive photoelectric sensor (ream light projector 90a ream center projector 9a).
Although the 0b ream left projector 90c light receiver (not shown) is used, the present invention is not limited to this, and may be, for example, a reflective photoelectric sensor.

Further, in the above-mentioned embodiment, the insertion head 56 is controlled by the control device 91.
Although the insertion head 56 may be moved, the insertion head 56 may be guided to the ream marker 70 by moving the table 4 on which the laminated paper 7 is placed without moving the insertion head 56. In this case, the movement of the table 4 on which the laminated paper 7 is placed is opposite to the movement of the insertion head 56 by the control device 91. Further, when the position of the ream marker 70 is slightly displaced, the control device 91 slightly moves the insertion head 56 or the table 4 on which the laminated paper 7 is placed to separate the laminated paper into units separated by the ream marker. Is not limited to the lower surface of the ream marker 70 as in the present embodiment, but may be separated on the upper surface of the laminated paper 7 in units divided by the ream marker 70.

When inserting the bellows 57 using the ream marker 70 as a guide,
If the thickness of one ream above the ream marker 70 is large, it becomes difficult to insert the bellows 57 stably due to its weight. In order to solve this problem, a method of reducing the weight of the paper on the bellows 57 can be considered. As a means for this, when the insertion head 56 is inserted between the sheets of the laminated paper 7 to separate the sheets, for example,
15 An air port provided on the tongue guide 59 as shown in the figure (the air port is not shown, but the tongue guide that faces the laminated paper 7
It is provided on the surface side of 59. It is also possible to adopt a means for reducing the weight of the paper on the bellows 57 by blowing air from) to insert the insertion head 56.

As a means for reducing the air pressure, the air port may not be provided in the tongue guide 59, and the air port may be provided in another member (not shown). Further, the ream above the insertion head 56 is mechanically pushed up obliquely upward. It is also possible to use mechanical means such as reducing the weight of the paper.

The sending device D has the following configuration (see FIG. 1).

That is, there is the V-axis unit 22 via the guide and slider in the X-axis unit 11 in the positioning device B. This can be moved back and forth on the X-axis unit 11 by the air cylinder 23. Forks capable of moving back and forth, such as forks 24, 24, are respectively coupled to the V-axis unit 22. Only one of the fixed forks 24, 24 is used at the same time, and the unused fixed fork 24 can be rotated, for example, 90 ° in the horizontal direction to be released so as not to interfere with the laminated paper 7 (Fig. 18). ).

A screw 27 is attached to the V-axis unit 22,
It can be rotated by a movable fork driving motor 26. This allows the movable fork 25 to slide left and right. FIG. 18 shows how the laminated paper 7 is fed out by one ream. This will be explained below.

FIG. A shows the state immediately before the start of the operation. The ream marker 70 is shown as being inserted in M ₁ or M ₂ in FIG. 7, so the illustration is omitted, but the fixed fork 24 uses only the right fixed fork 24, and the left fixed fork 24 is To prevent it from functioning, rotate it 90 ° horizontally to prevent it from interfering with the laminated paper 7. Further, the lower paper presser 28 is used only on the right side, and the lower paper presser 28 on the left side does not function.

On the contrary, when the ream marker 70 is inserted in M ₃ or M ₄ in FIG. 7, only the left fixed fork 24 and the lower paper presser 28 are allowed to function.

The laminated paper 7 is separated by the insertion head 56 of the paper separating device C, and the fixed fork 24, the movable fork 25 and the lower paper presser 28 can be inserted.

FIG. B shows a state in which the V-axis unit 22 and the lower paper presser 28 have moved forward by a constant stroke, and then the lower paper presser 28 is lowered to press the lower paper.

FIG. C shows the movable fork 25 moved to the left.

In Fig. D, the V-axis unit 22 moves forward by a constant stroke and 1
This shows the state in which the ream portion has been transmitted. The lower paper presser 28 is
This is to keep pressing the bottom paper so that it does not move.

In the automatic paper feeder configured as described above, when the pallet 6 carrying the laminated paper 7 moves onto the conveyor 5, the pallet lifting device A operates and the lifter 1 rises. Accordingly, the lift of the lifter 1 is stopped when the ream marker 70 is detected by the mark sensor projection 60a and the light receiver 60b. Since the load of the pallet lifting device A changes from 1 to 2.5 tons in this stopping operation, the mere forcible stop causes a large variation in the stopping position and cannot be put to practical use. Therefore, after detecting the ream marker 70 with the mark sensor projector 60a and the receiver 60b,
As shown in FIG. 16a, a signal is sent from the sensor 60 (mark sensor light emitter 60a, light receiver 60b) to the numerical controller 200,
The numerical control device 200 switches the lifting operation of the lifter 1 to the deceleration operation by numerical control to control the servo motor 2,
The control is performed so as to stop at a constant distance from the detection position of the ream marker 70 (for example, after the ream marker 70 is detected, the lifting operation of the lifter 1 is stopped at 5 mm).

Note that the numerical control device 200 allows the mark sensor projector 60a,
After the ream marker 70 is detected by the light receiver 60b, the distance until the lifter 1 stops rising is constant even if the laminated paper on the lifter 1 changes.

However, the next setup change is performed before the operation of the first pallet of the lot is started. That is, the size of the laminated paper 7 is greatly changed to 420 × 530 to 920 × 1300 mm as shown in FIG. 6, and the thickness of one ream is changed to, for example, 15 to 80 mm.
The insertion position of the ream marker 70 is selected at any one of the four positions as shown in FIG. 7, and the position is not at a fixed position from the corner but changes by about 100 mm ( However, in the case of the same lot, the amount of change is small), so that each X, Y, Z, U, C axis is manually set to match it, and the left or right of the fixed fork 24 is also set to be selected. I do. The selection of the lower paper presser 28 is automatically selected by changing the setting of the U axis. After performing this setup change, the lifter 1 is once lowered by about 100 mm and then raised, and when the mark sensor projector 60a and the light receiver 60b detect the ream marker 70, the lifter stops. This completes the setup change.

When the pallet 6 is lifted and stopped, each time the ream marker 70 is detected, as shown in FIG. 17, the stroke from the start of lifting to the stop is counted by the counter 211 via the pulse generator 210, and the central processing unit 212 controls the stroke. The counted value is compared with the standard value, and if the difference (ε = | standard value−count value |) is within the allowable value range, it is regarded as normal, and if the difference is large, it is regarded as abnormal. To issue an alarm and stop the pallet 6 from rising. This makes it possible to automatically detect an insertion error of the ream marker 70 in the previous step.

When the lifter 1 stops rising, the left and right air cylinders 61 are placed so that the holder 64 is in a lowered state and is below the ream marker 70.
To the full-in state. Then, when the holder 64 is slanted upward by the vertical air cylinder 63, the ream marker 70 is surely lifted and the insertion head 56 can be inserted. That state is shown in FIG. 19a. Next, FIG.
After the operation of e, the state shown in FIG. 19b is reached, and when the holder left / right air cylinder 61 is made full out, the held ream marker 70 hangs downward. State that
19 [c] [Inserting step: step of detecting the ream of the laminated paper 7 by the marks divided into a predetermined number of sheets and inserting it by the insertion head 56 according to the marks (FIGS. 19A to 19C).
(Fig. 19 c)].

Next, when the lifter 1 is lifted, the insertion head 56 is also lifted by the lifting force. The lifting operation of the lifter 1 is stopped by detecting the next ream marker 70. By supplying air to the lifting air cylinder 54 immediately before that, the insertion head 56 is further lifted by a certain amount from that position and stopped. The state is shown in FIG. 19d (raising step ... A step of raising the laminated paper 7 and the insertion head 56 at the same time after the insertion step).

That is, the upper portion of the ream marker 70 is lifted, and the fixed fork 24, the movable fork 25 and the lower paper presser 28 of the feeding device D are lifted.
Can be inserted in between. In order to send 12 to 15 reams in one minute, if the insertion head 56 is inserted after the pallet 6 has stopped rising, the cycle time will not be in time, so the insertion head 56 is inserted before the lifter 1 is lifted. However, when the lifter 1 stops rising, the
19 As shown in FIG. 19d, the upper portion of the ream marker 70 is further lifted up so that the delivery device D can be immediately operated.
That is, the cycle time is shortened.

In the state of FIG. 19d, the ream marker 70 has already been reliably held by the marker holder 58. Next, the delivery device D is once advanced. After that, move the movable fork 25 away from the fixed fork 24, and
Lower 28 and press down so that the bottom paper does not move. At the same time, the insertion head 56 is pulled out. Since the ream marker 70 is held on the insertion head 56, it will be pulled out together. As a result, the bellows guide 59 falls naturally to prepare for the next insertion operation.

FIG. 19e shows the state where the air cylinder 61 for the holder left and right is further added.
Shows the state in which the holder 64 is located just below the ream marker 70 by fully filling in. Then, the holder up / down air cylinder 63 is fully loaded, the holder 64 is raised, and the ream marker 70 is held. The withdrawn insertion head 56 descends. At that time, the ream marker 70 pulled out together is separately blown off with an air nozzle to be collected.

It should be noted that the tape marker 70 must be present before it is blown and that it is not after it has been blown.
Confirmed by 69. Then, prepare for the next insertion operation.

That is, the state shown in FIG.

On the other hand, the delivery device D further advances from the state of FIG. 19e, that is, the state of FIG. 18c to the state of FIG. 18d and delivers one ream [delivery step ... Step of inserting the forks 24, 25 into the gap of the formed laminated paper 7 and feeding one ream on the forks 24, 25].

At this time, air is discharged from the respective tips of the fixed fork 24 and the movable fork 25 which are inserted between the lower surface of the ream to be sent out and the upper surface of the lower sheet, so that the ream to be sent out is smoothly sent out.

The ream sent out is received by the flat wrapping machine E, and a reception completion signal is transmitted. The insertion head 56 performs the next insertion operation during feeding, and the lifter 1 raising operation is performed by this operation completion and the previous reception completion signal. By repeating this, that is, by separating the upper laminated paper 7 of 1 ream from the laminated paper below the 1 ream laminated paper 7 to another process (for example, a flat sheet wrapping machine). Then, the reams are successively sent to the flat-size packaging machine E.

That is, in the paper separating and feeding method, the insertion head 56 is inserted under the laminated paper 7 of one ream in the upper position, and then the insertion head 56 is lifted to form a gap, and the fork 2 is inserted in the gap.
Inserting 4, 25, the upper laminated paper 7 positioned above is separated from the laminated paper positioned below the lower laminated paper 7 and sent to another process, and the insertion head 56 is retracted. After that, the forks 24 and 25 are retracted, and after the forks 24 and 25 are retracted, the lifter 1 is raised to sequentially separate and deliver the one-ream laminated paper 7 at the upper position in the paper separating and delivering method. While feeding the 1-ream laminated paper 7 located at the fork 24, 25, the 1-ream laminated paper 7 below the 1-ream laminated paper 7 located at the upper side
Is detected, and the insertion head 24 is inserted into the 1-ream laminated paper 7 below the 1-ream laminated paper 7 located above.
Since the operation of inserting 25 is performed in parallel, the operation cycle can be further shortened.

When sending one ream, the forks 24 and 25 do not move in the vertical direction, but as shown in FIG. 20 and FIG.
1,251 may be configured to move vertically. This is the second
This is to prevent damage to the paper when the forks 241 and 251 move in the vertical direction according to the stacked state of the paper when the paper is stacked in a wavy state as shown in FIG.

That is, in FIG. 20, the fork 251 is attached to the fork board 96 by the elastic member 95.

Instead of the spring of the elastic member 95, the rubber 12 as shown in FIG.
3 is also acceptable (fork 241 is fork board via plate 99
It is attached to 96 with bolts 111. ). The slide cylinder 97 is attached to the fork board 96 so that the slide cylinder 97 slides in the vertical direction.
It is integrated with 251 and a fixing plate 98. An R portion is formed on the edge portion of the side surface of the fork 251 in order to prevent damage to the paper, and an air port 120 for discharging air is formed on the side surface.
121 is formed.

Therefore, in order to deliver the uppermost one-layer ream as in the above-described embodiment, first, the fork 241 and the fork 251 move forward simultaneously (FIGS. 18A and 18B), and then the fork 251 moves in the direction shown. (Figs. 18b and 18c), in which case the fork 251 can move vertically, so the paper is wavy (Fig. 23).
Even if they are stacked with each other, the fork 251 can move up and down according to the stacked state of the paper and prevent the paper from being damaged.
At that time, air can be discharged from the air port 120 of the fork 251 (FIG. 20c) to prevent the paper from being damaged.

As a means for preventing damage to the paper, replace the fork 251 which can move in the vertical direction with the air port 12 of the fork 251.
A means for supplying air from 0 may be used together.

From the state of FIG. 18c, the fork 241 and the fork 251 further move simultaneously in the direction of the arrow shown in FIG.

In the state shown in FIG. 18c, for the topmost ream of laminated paper, the upper surfaces of the forks 241 and 251 are below the bottom paper, and the fork 24 is above the paper on one plate of the bottom ream.
The lower surface of the fork 241,251 comes into contact with the fork 241,251 so that the paper under the fork 241,251 does not come into contact with the lower surface of the fork 241,251 when sending one ream to the flat-packaging machine E (Fig. 18d).
For example, a slide cylinder slightly lifts one ream to prevent the paper from being damaged.

In the automatic paper feeder 100 of this embodiment, some handles and the like are manually operated, but the X, Y, Z, U, and C angular axes may be automatically controlled by data from a computer. Further, the positioning device B of the automatic paper feeding device 100 of this embodiment may be automated, or the function of the paper separating device may be performed by a person and only the feeding device C may be automated.

(Effects of the Invention) The paper separating and feeding method of the present invention is a laminated paper having a mark divided for each ream, a lifter on which this laminated paper is placed and which can be raised and lowered, an insertion head which can be raised and lowered and moved forward and backward. A fork near the laminated paper, the insertion head is inserted under the laminated paper of the 1-reame at an upper position, and then the insertion head is lifted to form a gap. The fork is inserted and the laminated paper of 1 ream positioned above is separated from the laminated paper positioned below the laminated paper of 1 ream and sent to another process, and the insertion head is retracted, and thereafter. In the paper separating and feeding method for sequentially separating and feeding the forked reamed paper at the upper position by moving the fork backward and raising the lifter after the fork is moved backward, While feeding the laminated paper of the frame with the fork, the mark of the laminated paper of the 1 ream below the laminated paper of the 1 ream located above is detected, and the laminated paper of the 1 ream located above is detected. Since the operation of inserting the insertion head into the laminated paper of one ream below is performed in parallel, the operation cycle can be further accelerated.

[Brief description of drawings]

FIG. 1 is a schematic view of an automatic paper feeder in which the method of the present invention is used, FIG. 2 is a view of a separating device of the automatic paper feeder, and FIG. FIG. 4 is a view showing a paper retainer, FIGS. 4 to 6 are state diagrams of laminated paper, FIG. 7 is a layout diagram of ream markers, FIG. 8 is an operation explanatory diagram of a bellows guide and a holder, and FIG. Fig. 10 is an insertion state diagram of the insertion head, which is one step of the present invention, Fig. 10 is a layout diagram of the mark sensor, and Fig. 11 is a state of the ream marker inserted between the laminated sheets. FIG. 12, FIG. 12 is an operation explanatory view schematically showing a state where a ream marker is detected by a sensor, FIG. 13 is a command system circuit diagram for controlling the movement of the insertion head, and FIG. 14 is a diagram of the insertion head. FIG. 15 is a flowchart showing the operation, and FIG. 15 is an explanation of a method for reducing the ream weight when the insertion head is inserted. , FIG. 16 is a command system circuit diagram for controlling the movement of the lifter and a diagram showing the relationship between the lifter rising speed and time, FIG. 17 is a command system circuit diagram for controlling the lifter rising stop, and a flowchart diagram showing the operation thereof. First
FIG. 18 is a delivery process which is one process of the present invention. FIG. 18 is an operation explanatory diagram of the delivery device, and FIG. 19 shows a process of a main part of the present invention. Explanatory drawing, No.
Figures 20 and 21 show a fork that can move up and down, Figure 22 shows the state of laminated paper on the pallet and ream marker, and Figure 23 shows the laminated paper on the pallet undulating. It is a figure which shows a state. 7 ... Laminated paper, 56 ... Inserting head 24, 241, 25, 251 ... Fork

Claims (1)

[Claims] 1. A laminated paper having a mark divided for each ream, a lifter on which the laminated paper is placed and which can be raised and lowered, an insertion head which can be raised and lowered and moved forward and backward, and a fork which can be moved forward and backward are provided near the laminated paper. The insertion head is inserted under the 1-ream laminated paper in the upper position, and then the insertion head is lifted to form a gap, and the fork is inserted into the gap to move upward. The 1-ream laminated paper positioned is separated from the 1-ream laminated paper below the 1-ream laminated paper and sent to another process, and the insertion head is retracted, and then the fork is retracted, After the fork is retracted, the lifter is raised to sequentially separate and deliver the one-ream laminated paper at the upper position, wherein the one-ream laminated paper located at the upper position is the fore While feeding the paper, the mark of the 1-ream laminated paper under the 1-ream laminated paper located above is detected, and the 1-ream under the 1-ream laminated paper located above is detected. 2. The method for separating and delivering paper, wherein the operation of inserting the insertion head into the laminated paper is performed in parallel.