JPH02255439A - Paper separation and delivery method - Google Patents

Abstract

PURPOSE:To quicken an operation cycle yet speedier by performing an insertion process of the next ream simultaneously during operation of a delivery process. CONSTITUTION:A mark 70, where stacked paper is sectioned at each specified number of sheets, is detected, and according to this mark, the next ream ahead is delivered while it is inset by an insert head 56. Next, the stacked paper 7 and this insert head 56 are made to go up at the same time. Forks 24, 25 are inserted into a clearance of the stacked paper 7 formed by ascension of this insert head 56 and delivered while insertion of the next ream 70 is parallelly operated.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a paper separation and delivery method for separating laminated paper into predetermined number of sheets and sending them to the next process (Prior art) Conventionally, as a paper separation device There is one described in JP-A-61-188342.

That is, it consists of a pallet lifting device that places stacked papers on a pallet and can move up and down, and a separating device that separates the stacked papers vertically using ream markers. Each process of the automatic sheet feeder, which is composed of a sensor for detecting the ream marker and an insertion head having a suction port for suctioning the ream marker, is as follows.

There is a first lifting step in which the paper stacked on the pallet PT is raised by the lifting platform, an insertion step in which the paper is inserted by the insertion head according to the ream marker tape, and a paper above the insertion head is lifted by lifting the entire head frame. It consists of a second lifting step in which the paper is lifted up by the insertion head, and a delivery step in which the fork portion is inserted and sent out while the paper is lifted up by the insertion head.

(Problem to be Solved by the Invention) However, in the above steps, the first raising step operates, then the insertion step operates, the ascending step of the apprentice 2 operates, and then the sending step operates. Therefore, there is a problem in that the cycle time becomes long when a large number of reams are sent out per minute.

(Means for Solving the Problems) In order to solve the above problems, in the paper separation and feeding method of the present invention, a mark that divides the laminated paper into a predetermined number of sheets is detected, and the previous ream is moved according to the mark. an insertion step in which the laminated paper and the insertion head are fed out and inserted by the insertion head, a rising step in which the laminated paper and the insertion head are simultaneously raised after this insertion step, and the laminated paper formed by the raising of the insertion head. This process consists of inserting a fork into the gap between the reams and sending out the ream, and inserting the next ream in parallel.

(Function) In the raising process of the paper separation and delivery method configured as described above, the stacked paper is raised with the insertion head inserted into the stacked paper, and the insertion head is simultaneously raised, and during the delivery process operation, the stacked paper is raised. Operation cycle time can be shortened in order to perform the next ream insertion process (Example) The first row 100 shows an automatic sheet feeding device, and this automatic sheet feeding device 100 is connected to a conveyor (not shown). This is to send the laminated paper 7 sent from the ream to the manual wrapping machine E (Fig. 4) one ream at a time.

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 machine E. A table 4 for positioning the laminated paper 7, which is controlled to match the table 4, and a conveyor 5, etc., placed on the table 4 and used to take in and take out the pallet 6 when the lifter 1 is at the lowest stage. has been done. 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).

That is, the pedestal 8, which is the base of the positioning device B, and the X-axis unit 11 on the pedestal 8 are moved from side to side by handles (not shown).
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 X-axis unit 14 up and down with a handle (not shown).
3. The guide 12 and the slider 15, whereby the X-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 X-axis unit 14, the Y-axis unit 17 is slid 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 paper separation device 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 axis by operating a handle (not shown), and by manually moving the U-axis, it is possible to index at any position left or right and 90° horizontally. It has become.

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 to 920x 1300n+m (Fig. 6), and the insertion position of the ream marker 7Q (a mark for dividing the laminated paper 7 into a predetermined number of sheets, for example, the ream marker 70) is the same size. Even if it is, it corresponds to being in one of the four locations (Fig. 7).

Further, the positioning device B is provided with bottom pressers 28 on the left and right sides for holding down the paper below so that it does not move when the laminated paper 7 is fed out reamly. 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 lower paper presser foot 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. As shown in Fig. 6, the sizes of the laminated papers 7 vary widely, and the gap between the laminated papers 7 in the hand-held packaging machine E is controlled by the table 4 that determines the position of the laminated papers 7 so that they are always constant. 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. An insertion head 56 is inserted along the line via a bellows 57. An air cylinder marker holder 58 is fixed to the insertion head 56, and when the insertion head 56 completes insertion into the laminated paper 7, the marker holder 58 presses the ream marker 70 from above and pulls out the insertion head 56 from the laminated paper 7. (This is to ensure that the ream marker 70 is pulled out at the same time.

Furthermore, 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 a spring 67 is installed between the connecting plate 50 of the paper separation device C and the pressing plate 66.
The roller 68 is pressed against the side of the laminated paper 7, and even if the laminated paper 7 is bent with respect to the perpendicular line as shown in FIG. It is for.

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.

For this pressing, the following equipment is connected to the 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 the light receivers 60b, 60b, as shown in FIG. 8, attach the reamer force 70 to the bellows guide 59 and lift it upward, and pull up the holder 64 to make it easier to insert the insertion head 56. Holder upper and lower air cylinders 63 for broaching the holder 64 directly below the ream marker 70 Holder left and right air cylinders 6 for hair broaching
1 and the holder upper and lower air cylinders 63. The holder 64 and the holder up/down air cylinder 63 are coupled via a rod 63a. Holder connecting plate 62, holder upper and lower air cylinder 63
is provided at an angle with respect to the insertion head 56 (
Figure 2).

That is, as a holding means for holding the ream marker 70, which is tilted so that the holder 64 flips the ream marker 70 diagonally upward as shown by the arrow from the dotted line display position as shown in FIG. Holder 6
4 was used, but it is not limited to this, for example, bellow guide 59
A suction port (not shown) for suctioning the ream marker 70 may be provided on the lower surface of the ream marker 70 to hold the ream marker 70.

These devices are always kept at a constant distance from the sides of the laminated paper 7. Accordingly, the light emitters 60a, 60a and the light receivers 60b, 60b of the mark sensor can be arranged close to the sides of the laminated paper 7, so that it is possible to suppress as much as possible fluctuations in the stoppage of pallet elevation due to drooping of the ream marker 70, etc. 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 laminated paper 7. Since the light projectors 60a, 60a and the light receivers 60b, 60b of the mark sensor perform detection by applying light beams in the plane direction of the ream marker 70 (paper tape), there is a risk that detection may not be possible if the thickness of the ream marker 70 (paper tape) is thin. For this reason, at least two sets of transmission type light quantity switches are used in a cross-layered manner, and when either one detects the ream marker 70, the lifting of the lifter is stopped. The state is shown in FIG. 1O. 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 70.

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 plate 191 fixed to the left and right air cylinders 61 of the holder may be provided. This plate 191 aligns the ream markers 70 in a fixed direction as shown in FIG. 11, and prevents the height of the ream markers 70 from fluctuating up and down, allowing stable insertion of the insertion head 56.

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 70 deviates significantly in the lateral direction, the insertion head 56 cannot be inserted into the lower surface of the ream marker 70, causing damage to the paper. In order to prevent this, a sensor 90 that detects the position of the ream marker 70
A control section 91 is provided which controls the movement of the insertion head 56 based on the detection state of the sensor 90.

That is, the guide 59 is provided with a sensor 90 such as a ream light projector 90a, a ream center projector 90b, and a ream left projector 90c.These projectors 90a, 90b, 90
Light receivers (not shown) are provided so as to correspond to each point c.

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 the 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 the ream marker 70 is located at the position of the ream light projector 9°a.

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 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)
Then, go to step 107. If light is received, the position of the ream marker 70 is determined to be normal, and 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 108. 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 ream left projector 9°C.

If the ream marker 7o 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 7o 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 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 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. Furthermore, 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 somewhat to separate the laminated paper into units divided by the ream marker, but the insertion head 56 The ream marker 70 is not limited to the lower surface of the ream marker 70 as in this embodiment.
They may be separated on the upper surface of the unit laminated paper 7 divided by.

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 aero (not shown) provided on the tongue guide 59 as shown in FIG. It is also possible to adopt a means for inserting the insertion head 56 by reducing the weight of the paper applied to the bellows 57 by blowing air from the opposing tongue guide 59 (provided on the surface side of the bellows guide 59).

In addition, as a means to reduce the aero
Alternatively, the aero may be provided on another member (not shown), and the paper may be mechanically pushed up diagonally upward to reduce the weight of the paper. 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. Forks such as forks 24 and 24 are connected to the left and right sides of the V-axis 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. Movable.

This allows the 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 M in FIG. 7, so the illustration is omitted, but only the right fixed fork 24 is used, and the left fixed fork 24 is not functional. Manually rotate it 90 degrees horizontally so that it does not interfere with the laminated paper 7. In addition, use the lower paper presser 28 only on the right side, and make sure that the lower paper presser 28 on the left side does not function. .

Conversely, if the ream marker 70 is inserted into M or M4 in FIG.
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 V-axis 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.

In Figure d, the V-axis 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 continues to be 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 5, the pallet lifting device A is activated and the lifter 1 is raised. Accordingly, when the mark sensor light emitter 60a 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. After the mark sensor emitter 60a and receiver 60b detect the ream marker 70, the sensor 60 (mark sensor emitter 60a and receiver 60b) sends a signal to the numerical control device 200, as shown in FIG. Control device 200
to control the servo motor 2 by switching the upward movement of the lifter 1 to a numerically controlled deceleration movement, and the ream marker 70
(For example, after detecting the ream marker 70,
The lifting operation of the lifter 1 is stopped at 5 mm. ).

Note that the numerical control device 200 controls the mark sensor projector 6.
After the ream marker 70 is detected by the light receiver 6Db, 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 of the lot starts. 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. , as shown in FIG.
Changes around mm (however, in the case of the same lot,
(The amount of change is small), so manually adjust the
, Y, Z, tJ, and C axes, and furthermore, the setting of the left or right side of the fixed fork 24 is changed. 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 lowered by about 10,011 m, and then raised, and when the mark sensor emitter 60a and light receiver 60b detect the ream marker 70, the setup change is completed at 0 or more, at which the ascent stops.

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 operations shown in FIG.
hangs down.

This state is shown in FIG. a to Figure 19 c)].

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 (raising step: step of simultaneously raising the laminated paper 7 and the insertion head 56 after the insertion step).

That is, the upper part of the ream marker 70 is lifted and the fixed fork 24 of the delivery device is lifted. The movable fork 25 and the lower paper presser 28 can be inserted between them. 1 per minute
In order to send out reams 2 to 15, if the insertion head 56 is inserted after the pallet 6 stops rising, the cycle time will not be in time for the side bottom, so the insertion head 56 is inserted before the lifter 1 rises in this way, When the lifter 1 stops rising, the upper part of the ream marker 70 is already lifted further as shown in FIG. 19(d), so that the delivery device can immediately operate, thereby shortening the 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 70 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 next 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 lifting force 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 feeding device advances further from the state shown in FIG. 19e, that is, the state shown in FIG. 18C, and reaches the state shown in FIG.
Fork 24 into the gap in the laminated paper 7 formed by the rise.
25 and sending out one ream above the fork 24.25].

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

The delivered ream is received by the handy wrapping machine E, which 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, the reams are sent out to the hand wrapping machine E one after another.

Although the forks 24 and 25 do not move vertically when delivering one ream, the forks 241 and 251 may be configured to move vertically 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 a fork base plate 96 by an elastic member 95.

Note that instead of the spring of the elastic member 95, a rubber 123 as shown in FIG. 21 may be used (the fork 241 is attached to the fork base plate 96 with a bolt 111 via a plate 99). A slide cylinder 97 is attached to the fork base plate 96 so as to slide in the vertical direction, and the slide cylinder 97 is integrated with the fork 251 by a fixing plate 98. The edges of the sides of the fork 251 are rounded to prevent damage to the paper, and the sides are formed with aero holes 120 and 121 for discharging air.

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 drawing (Fig. 18, c). At that time, the fork 251 can move vertically, so even if the paper is stacked in a wavy state (Fig. 23), the fork 251
1 can move vertically depending on 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, in addition to the vertically movable fork 251, a means for releasing air from the aero 120 of the fork 251 may be used in combination.

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 upper surface of the fork 241, 251 comes into contact with the upper surface of the top paper of the ream below it, but when the ream 1 is sent to the manual wrapping machine E (FIG. 18d), the fork 2
41° The bottom surface of the fork does not touch the paper under 251.
In order to lift the forks 241 and 251, for example, one ream is slightly lifted using a slide cylinder to prevent damage to the paper.

In the automatic paper feeder 100 of this embodiment, some of the operations were performed manually using handles, but the X, Y, Z, U, and C1 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.

An insertion step in which a mark is detected that divides the laminated paper into a predetermined number of sheets, and the previous ream is sent out according to the mark and inserted by the insertion head, and after this insertion step,
A lifting step that makes it possible to raise the laminated paper and the insertion head at the same time, and a fork is inserted into the gap in the laminated paper formed by this raising of the insertion head to send it out, and the insertion of the next ream is performed in parallel. Since this is a paper separation and delivery method consisting of a delivery process, the next ream insertion process is simultaneously executed during the delivery process, making it possible to further speed up the operation cycle.

[Brief explanation of drawings]

Fig. 1 is a diagram schematically showing an automatic paper feeder in which the snacks of the present invention are used, and Fig. 2 is a diagram showing a separation device of the automatic paper feeder. 3 is a diagram showing the lower paper presser, FIGS. 4 to 6 are state diagrams of laminated paper, FIG. 7 is a diagram of the arrangement of ream markers, and FIG. 8 is an explanatory diagram of the action of the bellow guide and holder. Figure 9 shows the insertion process, which is one of the steps of the present invention, and Figure 10 shows the insertion state of the insertion head. Figure 10 shows the arrangement of the mark sensor. A diagram showing the state of the ream marker, FIG. 12 is an operation explanatory diagram schematically showing the state in which the 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. A flowchart showing the operation of the insertion head. Fig. 15 is an explanatory diagram of a method for reducing the ream weight of soil removal when the insertion head is inserted. Fig. 16 is a command system circuit diagram for controlling the movement of the lifter and the lifter rising speed. Fig. 17 is a command system circuit diagram for controlling the lifting stop of the beam lid and a flowchart showing its operation, and Fig. 18 is a diagram showing the relationship between The operation explanatory diagram, FIG. 19, shows the main steps of the present invention, and the explanation diagram of the operation of the paper separation device and the linked operation with the feeding device, and FIGS. 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. 7...Laminated paper, 56...Insertion head 24.241.25.251...Fork Saito-ku 1st b Figure 9 Matsu 9th ward, Ω ℃ th figure

Claims (1)

[Claims] An insertion step in which a mark is detected that divides the laminated paper into a predetermined number of sheets, and the previous ream is sent out according to the mark and inserted by the insertion head, and after this insertion step,
A lifting step that makes it possible to raise the laminated paper and the insertion head at the same time, and a fork is inserted into the gap in the laminated paper formed by this raising of the insertion head to send it out, and the insertion of the next ream is performed in parallel. A paper separation and delivery method characterized by comprising a delivery step of: