JPH0767984B2 - Paper separator - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper separating device that separates a laminated paper having ream markers inserted every predetermined number of sheets into laminated paper of a unit divided by the ream marker.

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

That is, it comprises a pallet elevating device for placing stacked papers on a pallet and being able to move up and down, and a separating device for separating the stacked papers up and down by a ream marker tape. Has a sensor for detecting the presence or absence of the ream marker tape, and an insertion head having an adsorption hole for adsorbing the ream marker tape, and inserts the fork part (64a) into the space between the laminated paper sheets and advances to move the paper sheet to the other side. It is equipped with a paper feeding device for feeding to.

(Problems to be Solved by the Invention) In the above-described paper separating device, it is unknown what kind of sensor the ream marker tape detection sensor C ₁ is, but the sensor is, for example, a commonly used optical sensor. Then, the ream marker tape (T) coming out of the laminated paper faces upward or downward.

Therefore, the detection position of the ream marker tape (T) fluctuates up and down, the ream marker tape (T) cannot be detected accurately, and the position of the insertion head (4) inserted between the sheets shifts, and the laminated paper There is a problem that it cannot be separated into laminated paper in units divided by the ream marker tape (T).

Further, in a paper separating device having no suction hole for sucking the ream marker tape (T) in the insertion head (4), if a sensor for detecting the ream marker tape (T) is provided in the horizontal direction, the rising thickness of the ream marker tape (T) increases. There is a problem that it is difficult to detect a thin ream marker tape (T).

Further, when the laminated paper is bent with respect to the vertical line as shown in FIG. 5, the ream marker tape (T) cannot be accurately detected.

(Means for Solving the Problems) In order to solve the above problems, in the paper separating apparatus of the present invention, a laminated paper loaded on a pallet and a predetermined number of sheets are inserted between the laminated papers. A ream marker, a member provided to face the surface of the laminated paper in which the ream marker is inserted to forcibly bend the ream marker in one direction, and a position of the ream marker forcibly bent by this member. A sensor for detecting the position of the ream marker, an insertion head inserted at the position of the ream marker, a pallet elevating device for elevating the pallet, and a control device for stopping the pallet elevating device based on the detection result of the sensor. Is.

Further, the paper separating apparatus of the present invention detects the position of the ream marker and the ream marker inserted between the paper sheets of the laminated paper every predetermined number of sheets, so that the light intersects. A plurality of sensors, an insertion head that is inserted into the ream marker, a pallet elevating device that elevates and lowers the pallet, and a control device that stops the pallet elevating device based on the detection result of the sensor. It is provided.

Further, the paper separating apparatus of the present invention includes a laminated paper mounted on a pallet, a ream marker inserted between the laminated paper sheets in a predetermined number of sheets, a sensor for detecting the position of the ream marker, and the ream marker. The insertion head to be inserted into the position, the movable body that is movably provided in contact with the side surface of the laminated paper in which the ream marker is inserted, the movable body and the sensor are connected, and the movement of the movable body A mounting plate that follows, a pallet lifting device that lifts and lowers the pallet, and a control device that stops the pallet lifting device based on the detection result of the sensor are provided.

(Operation) Since the paper separating device configured as described above is provided with the member for forcibly bending the ream marker in one direction, the ream marker works so as to be aligned in a certain direction, so that the appearance of the ream marker is upward. Even if the height positions are aligned, the detection accuracy can be improved.

In addition, because multiple sensors that detect the position of the ream marker are arranged so that the light intersects, the relationship between the light projection and light reception is slightly inclined with respect to the horizontal direction, and it is also possible to detect thin ream markers (for example, 0.1 mm). It will be possible.

Further, since the movable body moves according to the state of the laminated paper and the mounting plate to which the sensor is connected follows the movable body, the position of the sensor with respect to the laminated paper is constant regardless of the state of the laminated paper.

(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.
The table 4 for positioning, the 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
A screw 13 and a guide 12 fixed to 11 for moving the Z-axis unit 14 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
Corresponding to a large change such as 920 x 1300 mm (Fig. 6) and that the ream marker 70 is inserted at any of four positions (Fig. 7) even with laminated paper of the same size. To do.

Further, the lower paper presser for pressing the ream of the laminated paper 7 to the positioning device B so as not to move the lower paper.
28 are installed on the left and right respectively. This means that the insertion position of the ream marker 70 is M ₁ or M _{2 in} FIG. 7, or M ₃ or
Either one of the lower paper presser 28 is selected and used according to M ₄ . 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 positioning device B
And the gap between 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 through the indexing unit 20, and the insertion head mounting plate is provided by the charging air cylinder 51 fixed thereto.
53 is moved back and forth in the direction of arrow S-S. The guides 52a and 52b are for receiving loads. A rising air cylinder 54 for moving the charging plate 56 up and down is fixed to the charging head mounting plate 53. The guides 55a and 55b are for receiving loads. The charging head 56 has a bellows 57. The charging head 56 is to be inserted into the laminated paper 7 in order to separate the laminated paper 7 into the upper and lower parts with the ream marker 70 as a boundary. Along the bellows
The insertion head 56 is inserted through 57.
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 mounting plate is attached to the connecting plate 50 of the paper distribution device C via a slider 65.
66 are connected. A movable body, such as a roller 68, is provided on the mounting plate 66 so as to come into contact with the side surface of the laminated paper 7 and be movable.
Is fixed and the spring 67 is mounted between the connecting plate 50 and the mounting plate 66 of the paper separating device C, so the roller 68 is pressed against the side surface of the laminated paper 7 and the laminated paper 7 is shown in FIG. Even if it is bent with respect to the vertical line as shown in
This is to keep a constant distance from the 68 pressing points.

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 linked to the mounting 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 is raised as shown in FIG. The light projectors 60a, 60a and the light receivers 60b, 60b, and the holder 64 for attaching the ream marker 70 to the bellows guide 59 and lifting it upward as shown in FIG. 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
Is inclined with respect to the insertion head 56 (second
Figure).

That is, as shown in FIG. 8, the holder 64 is tilted from the position indicated by the dotted line so that the ream marker 70 is slanted upward as indicated 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. The Vero guide 59 also has a feature that it can be arranged at an optimum fixed distance from the side surface of the laminated paper 7. 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 crossed (arranged so that the light intersects) and used, and if one of them detects the ream marker 70, the lifter rise is stopped. 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 receiver 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.

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. In order to further improve the detection accuracy of the ream marker 70, the holder left and right air cylinders
A member 191 fixed to 61 is provided. The member 191 is provided so as to face the surface of the laminated paper 7 in which the ream marker 70 is inserted. This member 191 forcibly bends the ream marker 70 in one direction, and the ream marker 70 detects the height position of the ream marker 70 in a state where it is aligned in a certain direction as shown in FIG. Since the pallet lifting device A is stopped, the vertical variation of the height of the ream marker 70 can be suppressed to a relatively small amount, 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 the steps of 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 blocked, and the light receiver (not shown) corresponding to the ream 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, the insertion head 56 is moved to the left to make a correction, and the process returns 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 insertion head 56 is moved by the insertion head drive 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 divided 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 such as forks 24, 24 are connected to the left and right of the V-axis unit 22, respectively. 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). ).

V-axis unit 22 or screw 27 is attached,
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, manually rotate it 90 degrees horizontally so that it does not interfere 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 light projector 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,
It is controlled 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 light receiver 60b emits the ream marker 70, the distance until the lifting of the lifter 1 stops 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 constant from the corner but changes about 100 mm ( However, in the case of the same lot, the amount of change is small), so that each axis of X, Y, Z, U, C is manually changed according to it, and the left or right of the fixed fork 24 is selected. Replace. U of lower paper replacement 28 is selected
Automatically selected by changing the axis set. After performing this setup change, lower the lifter 1 by about 100 mm,
After that, raise it to mark sensor Emitter 60a, Receiver 60
When the ream marker 70 is detected at b, the ascending 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 pulled up obliquely by the vertical air cylinder 62, 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.

The state is shown in FIG. 19c.

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.

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 spontaneously and prepares 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. Ream Marker 70 pulled out at that time
Is separately blown off with an air nozzle and 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. 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, reams are successively sent to the flat-size packaging machine E.

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 1-ream of the laminated paper as in the above embodiment, first the fork 241 and the fork 251 move forward simultaneously (Figs. 18a and 18b), and then the fork 251 moves leftward in the drawing. It moves (Figs. 18b and 18c), in which case the fork 251 can move vertically, so that the paper is wavy (Fig. 23).
Even if they are stacked as shown in the figure, the fork 251 can move up and down according to the stacking 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 in the figure (FIG. 18d), and one ream is sent to the flat packaging machine E.

In the state shown in FIG. 18c, for the topmost ream of the laminated paper, the upper surface of the forks 241 and 251 is below the bottom paper, and the fork 24 is above the top paper 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 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) Since the present invention is configured as described above, it has the following effects.

In the paper separating apparatus of the present invention, the laminated paper mounted on the pallet, the ream marker inserted between the laminated paper sheets in a predetermined number of sheets, and the ream marker forcibly bending in one direction, A member provided facing the surface of the laminated paper in which a ream marker is inserted, a sensor for detecting the position of the ream marker forcibly bent by this member, and an insertion head inserted at the position of the ream marker. The pallet lifting device for lifting the pallet and the control device for stopping the pallet lifting device based on the detection result of the sensor are provided, so that the ream marker is forcibly bent in one direction by a member, Variations in the detection position can be reduced to suppress fluctuations in the pallet lift stop, the insertion head can be inserted stably, and line separation is possible. It can be performed well.

Further, the paper separating apparatus of the present invention detects the position of the ream marker and the ream marker inserted between the paper sheets of the laminated paper every predetermined number of sheets, so that the light intersects. A plurality of sensors, an insertion head that is inserted into the ream marker, a pallet elevating device that elevates and lowers the pallet, and a control device that stops the pallet elevating device based on the detection result of the sensor. Since it is provided, the light emitting and receiving relationship is oblique with respect to the horizontal direction, so that a thin ream marker can be detected, the insertion head can be stably inserted, and paper separation is performed well. be able to.

Further, the paper separating apparatus of the present invention includes a laminated paper mounted on a pallet, a ream marker inserted between the laminated paper sheets in a predetermined number of sheets, a sensor for detecting the position of the ream marker, and the ream marker. The insertion head to be inserted into the position, the movable body that is movably provided in contact with the side surface of the laminated paper in which the ream marker is inserted, the movable body and the sensor are connected, and the movement of the movable body Since a mounting plate to follow, a pallet raising / lowering device for raising / lowering the pallet, and a control device for stopping the pallet raising / lowering device on the basis of the detection result of the sensor are provided, the mounting plate moves according to the state of the laminated paper. The body moves, the mounting plate that connects the sensor follows the moving plate, and the position of the sensor with respect to the laminated paper is always constant from the side of the laminated paper according to the state of the laminated paper. Height of Mumaka be accurately detected, and the insertion head can be stably inserted, can be performed well paper separation.

[Brief description of drawings]

FIG. 1 is a schematic view of an automatic sheet feeder in which the apparatus of the present invention is used, FIG. 2 is a perspective view showing an embodiment of the present invention, 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. Is the insertion state diagram of the insertion head,
FIG. 10 is an arrangement view of a mark sensor showing an embodiment of the present invention, and FIG. 11 is a view showing a state of a ream marker inserted between sheets of laminated paper showing an embodiment of the present invention, FIG. 12 is an operation explanatory view schematically showing the state of detecting a ream marker with a sensor, FIG. 13 is a command system circuit diagram for controlling the movement of the insertion head, and FIG. 14 is a flowchart showing the operation of the insertion head. FIG. 15 is an explanatory diagram of a method for reducing the ream weight when the insertion head is inserted, and 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 lifting stop and a flow chart showing the operation thereof, FIG. 18 is an operation explanatory view of the feeding device, and FIG. 19 is an operation explanation of the paper separating device and the feeding device. Fig.20 and Fig.21 of the continuous operation of Shows a fork moveable, FIG. 22, a state diagram of the laminated paper state and Rimumaka on the pallet, FIG. 23 is a diagram showing a state in which laminated paper on the pallet struck waves. C: Paper separating device, 7: Laminated paper 56: Inserting head, 70: Ream marker 60a, 60b ... Sensor, 66 ... Mounting plate 68 ... Moving body (for example, roller) 191 ... Member

Claims (3)

[Claims] 1. A laminated sheet mounted on a pallet, a ream marker inserted between sheets of the laminated sheet at a predetermined number of sheets, and the ream marker inserted for forcibly bending the ream marker in one direction. A member provided to face the surface of the laminated paper, a sensor for detecting the position of the ream marker forcibly bent by this member, an insertion head inserted at the position of the ream marker, and the pallet. A paper separating device comprising: a pallet lifting device for lifting and lowering; and a control device for stopping the pallet lifting device based on a detection result of the sensor. 2. A laminated sheet mounted on a pallet, a ream marker inserted between sheets of the laminated sheet at a predetermined number, and a plurality of ream markers arranged to detect the position of the ream marker and to intersect with light. A sensor, an insertion head inserted at the position of the ream marker, a pallet lifting device for lifting the pallet, and a control device for stopping the pallet lifting device based on the detection result of the sensor. Paper separation device. 3. A laminated sheet mounted on a pallet, a ream marker inserted between the sheets of the laminated paper every predetermined number of sheets, a sensor for detecting the position of the ream marker, and a ream marker inserted at the ream marker position. An insertion head, a moving body that is movably provided in contact with the side surface of the laminated paper in which the ream marker is inserted, and a mounting plate that connects the moving body and the sensor and follows the movement of the moving body. A paper separating device comprising: a pallet lifting device that lifts and lowers the pallet; and a control device that stops the pallet lifting device based on a detection result of the sensor.