JPH02255434A - Paper separator - Google Patents

Abstract

PURPOSE:To arrange a ream marker properly in a specified direction and eliminate a variation in the height as well as to perform paper separation satisfactorily by installing a means for bending the ream marker inserted into a paper space between stacked sheets of paper at each specified sheet number, to one direction. CONSTITUTION:A ream marker is forcedly bent to one direction by a member 191 and arranged properly in a specified direction. Next, a position of this bent ream marker is detected by sensors 60a, 60b, and an inserting head 56 is inserted in a paper space where this detected ream marker is inserted, thereby paper separation takes place.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a paper separation device that separates laminated paper having ream markers inserted every predetermined number of sheets into units of laminated paper divided by the ream markers.

(Prior Art) Conventionally, there is a paper separation device described in Japanese Patent Application Laid-Open No. 188342/1983.

In other words, it consists of a pallet lifting device that places stacked paper on a pallet and can move it up and down, and a separation device that separates the stacked paper vertically using a ream marker tape. It has a sensor that detects the presence or absence of tape and an insertion head that has a suction hole that suctions this ream marker tape, and inserts the fork part (64a) between the sheets of laminated paper and moves forward to transfer the paper to the other side's packaging machine, etc. It is equipped with a paper feeding device that sends paper to

(Problem to be Solved by the Invention) In the paper separation device described above, it is unclear what kind of sensor the ream marker tape detection sensor C1 is, but if the sensor is, for example, a commonly used optical sensor, , the ream marker tape (T) coming out from stack 1 paper may be oriented upward or downward.

As a result, the detection position of the ream marker tape (T) fluctuates up and down, making it impossible to accurately detect the ream marker tape (T), and the position of the insertion head (4) inserted between the sheets shifts, causing the laminated paper to There was a problem in that the laminated paper could not be separated into units separated by the ream marker tape (T).

In addition, in a paper separation device that does not have a suction hole for adsorbing the ream marker tape (T) in the insertion head (4), if a sensor for detecting the ream marker tape (T) is installed in the horizontal direction, the increase in thickness can be avoided. There was a problem in that it was difficult to detect the thin ream marker tape (T).

Furthermore, when the laminated paper is bent with respect to the perpendicular line as shown in FIG. 5, there is a problem that the ream marker tape (T) cannot be detected accurately.

(Means for Solving the Problems) In order to solve the above problems, the paper separation device of the present invention includes a ream marker inserted between sheets of laminated paper every predetermined number of sheets, and a ream marker that is forced in one direction. This device is provided with a bending member, a sensor for detecting the position of the ream marker that is forcibly bent by the bending member, and an insertion head that is inserted between the navigation sheets.

Further, the paper separation device of the present invention includes a ream marker inserted between sheets of laminated paper every predetermined number of sheets, a plurality of sensors arranged so that the beams of light intersect while detecting the position of the ream marker, and An insertion head inserted between the two is provided.

Further, the paper separation device of the present invention includes a ream marker inserted between sheets of laminated paper every predetermined number of sheets, a sensor for detecting the position of the ream marker, and a ream marker movably provided in contact with the side surface of the laminated paper. This device includes a moving body and a mounting plate that follows the movement of the moving body and is connected to the sensor.

(Function) The paper separating device configured as described above is provided with a member that forcibly bends the ream markers in one direction, so the ream markers work to align in a certain direction, so even if the ream markers are oriented upwards. Even if the height positions are aligned, detection accuracy can be improved.

In addition, because multiple sensors that detect the position of the ream marker are arranged so that the lights intersect, the light emitting and receiving relationship is somewhat oblique with respect to the horizontal direction, resulting in a thin ream marker (
For example, detection of 0.1 mm is also possible.

Furthermore, since the moving body moves according to the state of the laminated paper and the mounting plate to which the sensor is connected follows the moving body, the position of the sensor relative to the laminated paper remains constant regardless of the state of the laminated paper.

(Example) The first row 100 shows an automatic paper feeding device, and this automatic paper feeding device 100 is used to feed laminated paper 7 sent from a conveyor (not shown) ream by ream to a manual packaging machine E ( (Fig. 4).

The automatic paper feeding device 100 generally includes a pallet lifting device A,
It consists of a positioning device B, a paper separation device C, and a delivery device.

The pallet lifting device A has the following configuration.

That is, a servo motor 2 for raising and lowering the pallet 6, a chain 3. Twisting rotation change of laminated paper 7 connected to chain 3 or riding on lid 1 and lifter 1 (Fig. 4)
A separate sensor detects the change in deflection with respect to the perpendicular line (Fig. 5), and the ream sent to the hand wrapping machine E is kept at a certain distance and parallel to the hand wrapping machine E, and further reaches the center line of the hand wrapping iso E. A table 4 is placed on the table 4 for positioning the sheets 7 of the stack, which is controlled to match the height of the stack 7, and a conveyor 5, etc., is placed on the table 4 to take in and take out the pallets 6 when the lifter 1 is at the lowest stage. ing.

The pallet 6 and the stacked paper 7 on it are loaded onto the conveyor 5.

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

In other words, 1. A pedestal 8 which is the base of the positioning device B. A handle (not shown) is used to move the X-axis unit 11 on the pedestal 8 to the left and right.
Screw 9 and nut 10 for movement. This causes the X-axis unit 11 to slide left and right on the pedestal 8. A screw 1 is fixed to the X-axis unit 11 and is used to move the two-axis unit 14 up and down with a handle (not shown).
3. The guide 12 and the slider 15, whereby the Z-axis unit 14 slides up and down on the X-axis unit 11. Further, by operating a handle (not shown) of a screw 16 fixed to the Z-axis unit 14, the Y-axis unit 17 slides back and forth. A guide 18 is fixed to the Y-axis unit 17, and the slider 19 can be manually moved left and right (U-axis parallel to the X-axis) along this guide 18.

Note that this U axis is for moving only the 1 liter paper unit C.

Beneath the slider 19 is an indexing unit 2 that can horizontally divide one rotation into four and manually index every 90 degrees.
A paper separating device C is attached via 0. Due to the function of the positioning device B, this paper separation device C can
It can be positioned at any position on the Z-axis by operating a handle (not shown), and by manually moving the U-axis, it is possible to index at any position on the left or right and 90° horizontally. It becomes.

Further, the delivery device can be positioned at any desired position on the X-axis together with the paper separation device C by operating a handle (not shown). For example, the size of the laminated paper is 420
530mm -920 It corresponds to this.

In addition, lower paper pressers 28 are attached to the left and right sides of the positioning device B to hold down the paper below so that it does not move when feeding out one ream of the laminated paper 7. This means that the insertion position of the ream marker 70 is M1 in FIG.
Alternatively, one of the lower paper pressers 28 is selected and used depending on M2, M3, or M4. This bottom paper presser 28
As detailed in FIG. 3, the front and rear air cylinders 281,
It has a structure that allows it to be moved back and forth and up and down using an air cylinder 282 for up and down.

The pedestal 8 of the positioning device B is mounted on a stage 29. The sizes of the laminated papers 7 vary widely as shown in Fig. 6, and the gap between the stacked papers 7 and the paper 7 is controlled to be always constant by the table 4 that determines the position of the laminated papers 7. Therefore, follow this and move to stage 29.
It is also controlled forward and backward. As a result, the gap between the positioning device B and the laminated paper 7 is always constant. This stage 2
9 is similarly controlled in order to improve workability even when the present automatic paper feeding device is not installed and the paper feeding work is performed manually.

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

That is, there is a separation unit connecting plate 50 connected to the positioning device B via the indexing unit 20, and an insertion air cylinder 51 fixed thereto allows the insertion head to be attached by moving the plate 53 back and forth in the direction of arrow S-8. be done. Guide 5
2a and 52b are for receiving loads. Insertion head mounting plate 5
A lifting air cylinder 54 for raising and lowering the insertion plate 56 is fixed to 3. The guides 55a and 55b are load bearing. The insertion head 56 has a bellows 57. The insertion head 56 is inserted into the laminated paper 7 in order to separate the laminated paper 7 into upper and lower parts with the ream marker 70 as a boundary. The insertion head 56 is inserted along the surface via the bellows 57. An air cylinder marker holder 58 is fixed to the insertion head 56, and this marker holder 58 presses the ream marker 70 from above when the insertion head 56 completes insertion into the laminated paper 7, and when the insertion head 56 is pulled out from the laminated paper 7. This is to ensure that the ream marker 70 is pulled out together with the ream marker 70.

Furthermore, 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 66 is connected to the connecting plate 50 of the paper separation device C via a slider 65. The mounting plate 66 has a laminated paper 7
A movable body that is movably provided in contact with the side surface of, for example,
The roller 68 is fixed, and the spring 67 is connected to the paper separating device C.
Since the roller 68 is installed between the connecting plate 50 and the mounting plate 66, the roller 68 is pressed against the side surface of the laminated paper 7, and even when the laminated paper 7 is bent with respect to the perpendicular line as shown in FIG. The mounting plate 66 is provided so that the pressure of the roller 68 is always at a constant distance from the point.

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

The following equipment is connected to this mounting plate 66.

That is, as shown in FIG. 8, hold down the ream marker 70 from above,
A bellows guide 59 also serves as a guide for the bellows 57. As shown in FIG. 1O, a mark sensor light emitter 60a for determining the stopping position when the pallet lifting device A ascends;
60a and light receivers 60b, 60b, a holder 64 for attaching the ream marker 70 to the bellows guide 59 and lifting it upward as shown in FIG. 8 to facilitate insertion of the insertion head 56, and a holder 64 for pulling up the holder 64. Holder upper and lower air cylinder 63, holder 64 with ream marker 70
This is a holder connecting plate 62 for connecting the holder left and right air cylinders 61 for hair broaching and the holder upper and lower air cylinders 63 for hair broaching. The holder 64 and the holder up/down air cylinder 63 are coupled via a rod 63a. The holder connecting plate 62 and the holder upper and lower air cylinder cylinders 63 are provided at an angle with respect to the insertion head 56 (FIG. 2).

That is, as shown in FIG. 8, when the holder 64 moves from the dotted line display position,
It is tilted so that the ream marker 70 can be flipped up diagonally as shown by the arrow.

Although the bellows guide 59 and the holder 64 are used as the holding means for holding the ream marker 70, the present invention is not limited thereto.
A suction port (not shown) for suctioning 0 may be provided to hold the ream marker at 7°.

These devices are always kept at a constant distance from the sides of the laminated paper 7. Therefore, the mark sensor light emitters 6Qa, 60a and the light receivers 6Qb, 11Ob can be arranged close to the side surfaces of the laminated paper 7, so that it is possible to suppress fluctuations in pallet lifting stoppage due to drooping of the ream marker 70, etc. as much as possible. The tongue guide 59 also has the feature that it can always be placed at an optimal constant distance from the side surface of the stack 7. Since the light emitters 60a, 60a and the light receivers 60b, 6ob of the mark sensor detect light beams in the plane direction of the ream marker 70 (paper tape), there is a possibility that the mark sensor cannot be detected if the thickness thereof is thin. Therefore, at least two sets of transmission type photoelectric switches are used in a cross-layered manner (arranged so that their lights intersect), and when either one detects the ream marker 70, the lifter lift is stopped. The state is shown in FIG. Thereby, even if the ream marker 70 is thin, it can be detected reliably.

FIG. 9 shows how the insertion head 56 is inserted into the laminated paper 7 using the ream marker 70 as a guide. This will be explained below.

Figure a shows the state immediately before insertion, that is, the state in which the ream marker 70 protruding from the laminated paper 7 is held down from above by the bellows guide 59, and is scooped up and held from below by the holder 64, making it easy for the bellows 57 to be inserted. It shows that it is.

The figure shows a state in which the insertion head 56 has moved forward a little and the tip of the bellows 57 is in contact with the ream marker 7G.

FIG. C shows a state in which the insertion head 56 has moved further forward and the bellows 57 have come to the end surface position of the laminated paper 7.

In this state, the laminated paper 7 is slightly lifted by the bellows 57. The bellows 57 forms a seesaw shape centered around 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 that the insertion head 56 is further advanced and the insertion head 56 is
This shows the state in which the leading edge of the paper 7 has reached the end surface position of the laminated paper 7. Since the bellows 57 is located below the ream marker 70, there is little risk of damaging the laminated paper 7.

Figure e shows the state in which the insertion head 56 is fully inserted between the stacks of paper 7. Since the bellows 57 is made of a thin and elastic material, even in the state shown in FIG.

In the above embodiment, the mark sensors include transmission type photoelectric sensors (emitters 60a, 60a, receivers 60b,
60b), but the present invention is not limited to this, and a reflective photoelectric sensor may also be used, for example.

In addition, when detecting the height of the ream marker 70, as shown in FIG.
0b), but the ream marker 70 is
Since the ream marker 70 is curved downward and upward, and is not constant, the detection position of the height of the ream marker 70 fluctuates up and down. In order to further improve the detection accuracy of the ream marker 70, a member 3.91 fixed to the left and right air cylinders 61 of the holder is provided. This member 191 forcibly bends the ream marker 70 in one direction, and when the ream marker 70 is aligned in a certain direction as shown in Figure I1, the height position of the ream marker 70 is detected and the pallet lifting device A is stopped. Therefore, the amount of vertical fluctuation in the height of the ream marker 70 can be suppressed to a relatively small amount, so that the insertion head 56 can be stably inserted.

Furthermore, the position of the ream marker 70 may be shifted to some extent in the lateral direction. If the position of the ream marker 7o deviates significantly in the lateral direction, the insertion head 56 cannot be inserted into the lower surface of the ream marker 7o, causing damage to the paper. In order to prevent this, a sensor 9° for detecting the position of the ream marker 70 is provided, and a control section 91 is provided for controlling the movement of the insertion head 56 based on the detection state of the sensor 90.

That is, the guide 59 is provided with sensors 9o, such as a ream light projector 90a, a ream center projector 90b, and a ream left projector 90c.
1) A light receiver (not shown) corresponding to c.
has been established.

That is, in FIG. 14, 101 to 111 indicate each step of the flowchart.

First, mark the ream marker 7 at the position of the ream center floodlight 90b.
It is determined in step 101 whether 0 is located.

If the ream marker 70 is located, the light is blocked and a light receiver (not shown) corresponding to the ream center emitter 90b
does not receive light. In this case, the process moves to step 102.

If light is received, the process moves 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 9°a.

If the ream marker 7o is located, the light is blocked and the light receiver (not shown) corresponding to the ream light emitter 90a
does not receive light. In this case, the ream light floodlight 90a
It is determined that the position is slightly to the right, and the process moves to the next step 1°4. If light is received, the process moves to step 105.

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

In step 105, it is determined whether 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 receiver (not shown) corresponding to the ream left emitter 90c
does not receive light. In this case, it is determined that the limb left position is slightly to the left, and the process moves to the next step 106. When light is received (the position of the ream marker 70 is as shown in Figure 12C)
If light is received, the position of the ream marker 70 is determined to be normal, and the process proceeds to step 107 (.
Move on to the next step. That is, the insertion head 56 moves forward and moves to the operation of separating the laminated paper 7 into units divided by the ream markers 70. ).

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

In step 103, it is determined whether the ream marker 70 is located at the position of the ream light projector 90a.

If the ream marker 70 is located, the light is blocked and the light receiver (not shown) corresponding to the ream light emitter 90a
does not receive light. In this case, the ream light floodlight 90a
It is determined that the position is on the right side, and the process moves to the next step l [18.

If light is received, the process moves to step 109.

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

In step 109, it is determined whether 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 receiver (not shown) corresponding to the ream left emitter 90c
does not receive light. In this case, the ream left floodlight 90c
It is determined that the position is on the left side, and the process moves to the next step 110. If light is received (the position of the ream marker 70 is as shown in FIG. 11d), the process moves 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 volatile 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 far away from the insertion head 56 and the operation may be stopped, or a means may be used in which the operation is stopped and a warning sound or the like is used to notify the person. Note that the insertion head 56 is moved by an insertion head driving means 92.

In the above embodiment, a transmission type photoelectric sensor (ream light emitter 90a ream center emitter 90b ream left emitter 90c receiver (not shown)) is used as the sensor 90, but the sensor 90 is not limited to this, and for example, a reflection type photoelectric sensor may also be used. good.

Further, in the above embodiment, the insertion head 56 was moved by the control device 91, but instead of moving the insertion head 56, the table 4 on which the laminated paper 7 was placed was moved to guide the insertion head 56 to the ream marker 70. Also good. in this case,
The movement of the table 4 on which the laminated paper 7 is placed is controlled by a control device 91.
The movement of the insertion head 56 is reversed. If the position of the ream marker 70 is slightly deviated, the control device 91 moves the insertion head 56 or the table 4 on which the laminated paper 7 is placed a little to separate the stacks 71 sheets divided by the ream marker, but the insertion head 56 is not limited to the bottom surface of the ream marker 70 as in this embodiment, but is also provided on the ream marker 7.
They may be separated at the upper surface of the laminated paper 7 in units divided by 0.

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 thick, it becomes difficult to stably insert the bellows 57 due to its weight. In order to solve this problem, a method of reducing the weight of paper applied to the bellows 57 can be considered. As a means for this, when inserting the insertion head 56 between the sheets of the laminated paper 7 to separate the sheets, an air vent (not shown, but the It is also possible to adopt a means for inserting the insertion head 56 by blowing air from a surface of the tongue guide 59 facing the bellows 7 to reduce the weight of the paper applied to the bellows 57.

In addition, as a means to reduce the aero
Alternatively, the aero may be provided on another member (not shown), and the paper weight may be reduced by mechanical means such as mechanically pushing up the ream above the insertion head 56 diagonally upward. Also good.

The delivery device consists of the following configuration (see Figure 1).
.

That is, the X-axis unit 22 in the positioning device B is connected to the X-axis unit 11 via a guide and a slider. This can be moved back and forth on the X-axis unit 11 by an air cylinder 23. (2) Forks such as forks 24 and 24 are connected to the left and right sides of the shaft unit 22, respectively. Only one of these fixed forks 24, 24 is used at a time, and the fixed fork 24 that is not used can be rotated horizontally by 90°, for example, and released so as not to interfere with the laminated paper 7 (Fig. 18). ).

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

Figure a shows the state immediately before the start of operation. The ream marker 70 is shown as being inserted into Ml or M2 in FIG. 7, so the illustration is omitted, but only the right fixed fork 24 is used, and the left fixed fork 24 does not function. The lower paper presser 28 is manually rotated horizontally by 90 degrees so as not to interfere with the laminated paper 7, and the lower paper presser 28 is used only on the right side, and the lower paper presser 28 on the left side is disabled.

Conversely, if the ream marker 70 is inserted into M3 or M4 in FIG.
Make only 8 function.

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

The figure shows a state in which the shaft unit 22 and the lower paper presser 28 move forward by a certain stroke, and then the lower paper presser 28 descends to press the lower paper.

Figure C shows a state in which the movable fork 25 has moved to the left.

Figure d shows ■ The shaft unit 22 further moves forward by a certain stroke;
This shows the state in which one rim has been sent out. During this time, the bottom paper presser 28 is kept pressed so that the bottom paper does not move.

In the automatic paper feeder configured as described above, when the pallet 6 carrying the stacked paper 7 is moved onto the conveyor S, the pallet lifting device A is activated and the lifter 1 is raised. Accordingly, when the mark sensor light emitter 60a1 and the light receiver 60b detect the ream marker 70, the lid 1 stops rising. This stop operation is performed when the load of pallet lifting device A is 1 to 2.
．． Since the weight changes to 5 tons, mere forced stopping would result in large variations in the stopping position, making it impractical for practical use. Therefore, after the mark sensor emitter 60a and receiver 60b detect the ream marker 70, as shown in FIG. device 200
, the lifting operation of the lifter 1 is switched to the deceleration operation by numerical control, the servo motor 2 is lowered to the 1st position, and the ream marker 7 is
The lifter 1 is controlled to stop at a certain distance from the zero detection position (for example, the lifting operation of the lifter 1 is stopped 5 mm after the ream marker 70 is detected).

Note that the numerical control device 200 controls the mark sensor projector 6.
0a, after the ream marker 70 is detected by the light receiver 60b, the distance until the lifter 1 stops rising remains constant even if the stacked paper on the lifter 1 changes.

However, the next setup change will be made before the operation of the first pallet in the loft begins. That is, the size of the laminated paper 7 changes to a wide width of 420 x 530 to 920 x 1300 mm as shown in Fig. 6, and the thickness of one rim is, for example, 15 to 8 mm.
0 mm, and the insertion position of the ream marker 70 is selected from one of the four positions as shown in FIG. 7, and the position is not a fixed position from the corner. Since the change is around 100 mm (however, the amount of change is small in the case of the same lot), the X, Y, Z, U, and C axes are manually set according to the change, and the fixed fork 24 is Change the setting to select either the left or right side. The lower paper presser foot 28 is automatically selected by changing the setting of the U axis. After performing this setup change, the lifter 1 is first lowered by about 100 mm, then raised, and when the mark sensor emitter 60a and light receiver 60b detect the ream marker 70, the lifter 1 stops rising. This completes the setup change.

During the lifting and stopping operation of the pallet 6, each time the ream marker 70 is detected, as shown in FIG.
Compare the counted value with the standard value and calculate the difference (ε=
If 1 standard value - count value 1) is within the range of allowable values, it is considered normal, and if the difference is large, it is considered abnormal and a warning is issued and the lifting of the pallet 6 is stopped. This makes it possible to automatically detect errors in insertion of the ream marker 70 in the previous process.

When the lifter 1 stops rising, the left and right air cylinders 61 are brought into a full-in state so that the holder 64 is in a lowered state and is below the ream marker 70. Then, when the holder 64 is pulled up using the air cylinder 63 for tilting upward and downward, the ream marker 70 is reliably lifted and the insertion head 56 can be inserted. This state is the state shown in FIG. 19a. Next, the state shown in FIG. 19 is reached through the operation shown in FIG. 9 a-%-6, and then when the holder left and right air cylinders 61 are fully out, the ream marker 70 that was being held hangs down.

The state is shown in FIG. 19C.

Next, when the lifter 1 is raised, the insertion head 56 is also raised by the lifting force. The lifting operation of the lifter 1 stops when the next ream marker 70 is detected, but by supplying air to the lifting air cylinder 54 just before that, the insertion head 56 rises a certain amount further from that position and stops. . The state is shown in FIG. 19d.

That is, the upper part of the ream marker 70 is lifted, and the fixed fork 24. of the delivery bag ff1D is lifted. The movable fork 25 and the lower paper presser 28 can be inserted between them. In order to send out 12 to 15 reams per minute, if the insertion head 56 is inserted after the pallet 6 has stopped rising, the cycle time will not be in time for the side bottom, so the lifter 1 is
The insertion head 56 is inserted before the lifter 1 rises, and when the lifter 1 stops rising, the ream marker 7 is already inserted as shown in FIG. 19d.
The upper portion of the 0 is further raised to allow the delivery device to operate immediately, reducing cycle time.

In the state shown in FIG. 19d, the ream marker 70 is already securely held by the marker holder 58. Next, the delivery device is moved forward once. After that, the movable fork 2
5 in a direction away from the fixed fork 24, and the bottom paper presser 28 is lowered to hold the bottom paper so that it does not move. At the same time, the insertion head 56 is pulled out (.

Since the ream marker 7o is held in the insertion head 56, it will be pulled out at the same time. As a result, the bellows guide 59 naturally falls and prepares for the first insertion operation.

FIG. 19e shows a state in which the holder left and right air cylinders 61 are further fully moved in, and the holder 64 is located directly below the ream marker 70. Then, the holder up/down air cylinder 63 is fully moved in, the holder 64 is raised, and the ream marker 70 is held. The inserted head 56 that has been pulled out descends. At that time, the ream marker 70 that was pulled out at the same time was blown off and recovered using a separate air nozzle.

The tape sensor 69 confirms that the ream marker 70 is present before blowing off, and that it is absent after blowing off. Then, it prepares for the next insertion operation.

That is, the state shown in FIG. 19a is reached.

On the other hand, the delivery device advances further from the state shown in FIG. 19e, that is, the state shown in FIG. 18C, to the state shown in FIG. 18D, and delivers one ream. At this time, air is discharged from the respective tips of the fixed fork 24 and the movable fork 25 inserted between the lower surface of the ream to be sent out and the upper surface of the bottom paper.
The feeding mechanism is made to be fed out smoothly.

The sent out ream is a handy package device 1! E receives it and sends a reception completion signal. During feeding, the insertion head 56 performs the next insertion operation, and upon completion of this operation and the previous receiving completion signal, the lifter 1 is raised.

By repeating this process, the reams can be wrapped one after another by the handy wrapping machine E.
will be sent to.

Note that when delivering one ream, the forks 24, 25 do not move in the vertical direction, but the forks 241, 251 may be moved in the vertical direction <1 as shown in FIGS. 20 and 21. This is because when the paper is stacked in a wavy state as shown in Fig. 23, when the forks 241 and 251 move, they move vertically depending on the stacked state of the paper to prevent damage to the paper. It is.

That is, in FIG. 20, the fork 251 is attached to the fork base plate 95 by an elastic member 95.

Note that instead of the spring of the elastic member 95, a rubber 123 as shown in FIG. The slide cylinder 97 is attached so that the cylinder 97 can slide vertically, and is integrated with the fork 251 and a fixing plate 98. The edge part on the side of the fork 251 is
An R section is formed to prevent damage to the paper, and aero holes 120 and 121 for discharging air are formed on the sides.

Therefore, in order to send out the uppermost ream of laminated paper as in the previous embodiment, first the fork 241 and the fork 251
simultaneously move forward (Fig. 18a, b), then the fork 25
1 moves to the left in the figure (Fig. 18, c), and at that time, the fork 251 can move vertically, so even if the paper is stacked in a wavy state (Fig. 23), the fork 2
51 can move up and down in accordance with the stacked state of the paper to prevent damage to the paper. Also, at this time, air can be released from the aero 120 of the fork 251 (FIG. 20c) to prevent damage to the paper.

As a means for preventing damage to the paper, instead of the vertically movable fork 251, a means for releasing air from the aero 120 of the fork 251 may be used in conjunction with the fork 251.

From the state shown in FIG. 18C, the fork 241 and the fork 251 simultaneously move in the direction of the arrow shown in the figure (FIG. 18d).
The ream is sent to hand wrapping machine E.

Note that in the state shown in FIG.
The lower surface of the fork 241, 251 contacts the top surface of the top paper of the ream below it, but when sending one ream to the manual wrapping machine E (FIG. 18d), the fork 24
For example, in order to lift the fork 241.251 so that the underside of the fork does not touch the paper under 1251,
A slide cylinder slightly lifts one ream to prevent damage to the paper.

In the automatic paper feeder 100 of this embodiment, some of the operations were performed manually using handles, etc., but the x, y, z, ke, and C5 axes may be automatically controlled using data from a computer. The positioning device B of the automatic paper feeder 100 of this embodiment may be automated, or the function of the paper separation device may be performed by a person, and only the delivery 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 separation device of the present invention, since a member is provided that forcibly bends the ream markers in one direction, the ream markers are aligned in a certain direction, the height of the ream markers does not fluctuate like in the past, and the insertion head can be stably inserted. Paper separation can be performed well.

In addition, in the paper separation device of the present invention, since the plurality of sensors for detecting the position of the radial force are arranged so that the lights intersect, the light emitting and receiving relationship is oblique with respect to the horizontal direction. Therefore, a thin ream marker can be detected, the insertion head can be stably inserted, and paper separation can be performed satisfactorily.

Further, the paper separation device of the present invention includes a ream marker inserted between sheets of laminated paper every predetermined number of sheets, a sensor for detecting the position of the ream marker, and a ream marker movably provided in contact with the side surface of the laminated paper. Since a moving body and a mounting plate that follows the movement of the moving body and is connected to the sensor are provided, the moving body moves according to the state of the laminated paper, and the mounting plate to which the sensor is connected follows the moving body. , the position of the sensor relative to the laminated paper remains constant regardless of the condition of the laminated paper, the position of the ream marker can be detected accurately, the insertion head can be inserted stably, and the paper can be separated well. .

[Brief explanation of drawings]

FIG. 1 is a diagram schematically showing an automatic paper feeder in which the device of the present invention is used, FIG. 2 is a perspective view showing an embodiment of the present invention, and FIG. 4 to 6 are diagrams showing the state of laminated paper, FIG. 7 is a diagram showing the arrangement of ream markers, FIG. 8 is an explanatory diagram of the action of the bellow guide and holder, and FIG. 10 is a diagram of the insertion state of the insertion head, FIG. 1O is a layout diagram of the mark sensor showing an embodiment of the present invention, and FIG. A diagram showing the state of the ream marker, the first
Fig. 2 is an operation explanatory diagram schematically showing the state in which a sensor detects a ream marker, Fig. 13 is a command system circuit diagram that controls 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 weight of the ream for soil removal when the insertion head is inserted.
6 is a command system circuit diagram that controls 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 that controls the lifter lift stop and a flowchart diagram showing its operation; FIG. 18 is an explanatory diagram of the operation of the feeding device, FIG. 19 is an explanatory diagram of the operation of the paper separation device and the linked operation with the feeding device, and FIGS. 20 and 21 are diagrams showing a fork that is movable up and down. , FIG. 22 is a diagram showing the state of the laminated paper on the pallet and the state of the ream marker, and FIG. 23 is a diagram showing the state of the laminated paper on the pallet in a wavy state. C... Paper separation device, 7... Laminated paper 56...
... Insertion head, 70 ... Ream marker 60
a, 60b...Sensor, 66...Mounting plate 68...Moving body (e.g. roller) 191...
... Member αk M4 1st Sanrtsu Ward Saitsu Ward Sai Ward To 1b Sai 9 Ward O I] [

Claims (3)

[Claims] (1) A ream marker inserted between sheets of laminated paper every predetermined number of sheets, a member forcibly bending this ream marker in one direction, a sensor detecting the position of the ream marker forcibly bent by this member, and the above-mentioned ream marker. A paper separation device characterized by comprising an insertion head that is inserted between sheets of paper. (2) A ream marker inserted between sheets of laminated paper every predetermined number of sheets, a plurality of sensors arranged to detect the position of the ream marker and whose lights intersect, and an insertion head inserted between the sheets. A paper separation device characterized by being provided with. (3) a ream marker inserted between sheets of laminated paper every predetermined number of sheets, and a sensor that detects the position of the ream marker;
A paper separation device comprising: a movable body movably provided in contact with a side surface of the laminated paper; and a mounting plate that follows the movement of the movable body and is connected to the sensor.