JPH02291356A - Paper separating device - Google Patents

Abstract

PURPOSE:To separate paper desirably by holding a ream marker inserted between the sheets of stacked paper every specified number of sheets by holding means and inserting an insertion head between the paper sheet along the lower face of the ream marker as a guide. CONSTITUTION:A projecting ream marker 70 inserted into the stacked paper 7 every specified number of sheets is held down by a bellows guide 59 as well as held up by a bolder 64 so as to make it easy to insert a bellows 57. When an insertion head 56 advances in this state to bring the tip of the bellows 57 into contact with the lower face of the ream marker 70 and further advances to reach the end face position of the stacked paper 7, the stacked paper 7 is slightly lifted. The tip of the bellows 57 is then inserted along the lower face of the ream marker 70 so as to insert the insertion head 56. The paper can be thus separated desirably while being prevented from being damaged.

Description

[Detailed description of the invention] a. OBJECTS OF THE INVENTION (Field of Industrial Application) The present invention relates to a paper separation device that separates a laminated paper having a reamer, which is inserted every predetermined number of sheets, into units of laminated paper divided by ream markers. (Prior Art) Conventionally, there is a paper separation device described in Japanese Patent Application Laid-open No. 188342/1983.

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. It is composed of a sensor for detecting the ream marker and an insertion head having a suction port for suctioning the ream marker.

(Problem to be Solved by the Invention) In the paper separation device described above, the ream marker is vacuum-adsorbed on the lower surface of the insertion head, and the insertion head is inserted from above this reamer force. There was a problem in that the paper could be damaged and the paper could not be separated properly. Furthermore, although reamer force is inserted between sheets of laminated paper every predetermined number of sheets, the position of the ream marker may be slightly shifted.

In such a case, since the ream marker cannot be attracted to the lower surface of the insertion head, the insertion head cannot be inserted from above the ream marker, resulting in a problem in that the paper cannot be separated well.

mouth. Structure of the Invention (Means for Solving the Problems) In order to achieve the above object, the paper separation device of the present invention includes a holding means for holding ream markers inserted every predetermined number of sheets between sheets of laminated paper; and an insertion head inserted using the lower surface of the ream marker held by the holding means as a guide.

Furthermore, the paper separation device of the present invention includes a sensor that detects the position of the ream marker inserted between sheets of laminated paper every predetermined number of sheets, and a sensor that detects the position of the ream marker and controls the movement of the insertion head or the table on which the laminated paper is placed. It is equipped with a control section.

(Function) Since the ream marker is held by the holding means of the paper separation and filtration device configured as described above, the insertion head can be easily inserted and the insertion head can be inserted between the sheets of laminated paper using the lower surface of the ream marker as a guide. Ru.

Further, the position of the reamer force of the paper separation device is detected by the sensor, and based on the detection result, the control section can control the movement of the insertion head or the table on which the laminated paper is placed to the position of the ream marker.

(Embodiment) Reference numeral 100 in FIG. 1 indicates an automatic paper feeder, and this automatic paper feeder 10ro is used to feed laminated paper 7 sent from a conveyor (not shown) ream by ream to a flat 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 D. 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, which is connected to the chain 3, rides on the lid 1, and the lifter l, and changes the twisting rotation of the laminated paper 7 (Fig. 4).
A separate sensor detects the change in deflection with respect to the perpendicular line (Fig. 5), and the ream to be sent to the flat packaging machine E is kept at a certain distance and parallel to the flat packaging machine E, and is further aligned with the center line of the flat packaging machine E. A table 4 for positioning the laminated paper 7, which is controlled to match the position of the stack, is located on the table 4, and is composed of a conveyor 5, etc., for taking in and out the pallet 6 when the lifter 1 is at the lowest stage. There is.

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

Positioning device B consists of the following configuration (see Figure 1). That is, the pedestal 8, which is the pace of the positioning device B, and the X-axis unit l1 on the pedestal 8 are moved from side to side by handles (not shown).
A screw 9 and a nut 10 are used to move the X-axis unit 11 from side to side on the pedestal 8. A screw 1 fixed to the X-axis unit 11 and used to move the Z-axis unit l4 up and down with a handle (not shown)
3. Guide 12 and slider 15, whereby Z-axis unit 14 slides up and down on 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 paper separation device C. Beneath the slider l9 is an indexing unit 2 that can divide one rotation horizontally into four and manually index each rotation in 90° increments.
A paper separating device C is attached via 0. Due to the function of the positioning device B, this paper separating 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 on the left or right and 90 degrees horizontally. It has become. Furthermore, the delivery device D 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
530++++w to 920X 1300mm (Fig. 6) and the insertion position of the ream marker 70 is one of four even if the laminated paper is of the same size (Fig. 7). It corresponds to this. Further, the positioning device B is provided with lower paper pressers 28 on the left and right sides for holding down the paper below so that it does not move when feeding out the L 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 bottom paper pressers 28 is selected and used depending on M2, M, or M4. This lower paper presser foot 28
As detailed in Fig. 3, the front and rear air cylinders 28l1
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 the stage 29. As shown in Fig. 6, the sizes of the five-layer paper 7 vary widely, and the table 4 that determines the position of the paper 7 is controlled so that the gap between the paper wrapping machine E and the paper 7 is always constant. Therefore, following this, stage 2
9 is also controlled back and forth. As a result, the gap between the positioning device B and the laminated paper 7 is always constant. This stage 29 is similarly controlled in order to improve workability even when the present automatic paper feeding device is not installed and the paper feeding operation is carried out manually.

Paper separation device C has the following configuration (see Figure 2). That is, there is a separation unit connecting plate 50 connected to the positioning device B via the indexing unit 20, and the insertion head mounting plate 53 is moved back and forth in the direction of the arrow S-S by the insertion air cylinder 5l fixed thereto. Ru. Guide 5
2a and 52b are for receiving loads. Insertion head mounting plate 53
A lifting air cylinder 54 for raising and lowering the insertion plate 56 is fixed to the. The guides 55a and 55b are load receiving. The insertion head 56 has a bellows 57. The insertion head 56 inserts the laminated paper 7 with the ream marker 70 as the boundary.
The insertion head 56 is inserted into the laminated paper 7 in order to separate the ream marker 70 into upper and lower parts. I am trying to insert . Insertion head 5
A marker holder 58 of an air cylinder is fixed to 6, 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 pulling 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 bi-separating device C and the pressing plate 66.
The roller 68 is pressed against the side of the stacked paper 7, and even if the stacked paper 7 is bent with respect to the perpendicular line as shown in FIG. 5, the pressing plate 66 is always at a constant distance from the pressing point of the roller 68. belongs to.

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 devices are connected to this pressing plate 66.

That is, as shown in FIG. 8, hold down the ream marker 70 from above,
In addition, a bellows guide 59 that also serves as a guide for the bellows 57, a mark sensor emitter 60a, 60a and a receiver 60b, 6ab for determining the stop position when the pallet lifting device A ascends, and a ream marker 70 as shown in FIG. a holder 64 that is lifted upward by the guide 59 to facilitate insertion of the insertion head 56; a holder up/down air cylinder 63 for pulling up the holder 64;
This is a holder connecting plate 62 for connecting the holder left and right air cylinders 61 for hair broaching the holder 64 directly below the ream marker 70 and the holder upper and lower air cylinders 63.

The holder 64 and the holder up/down air cylinder 63 are connected via a rod 63a. holder connecting plate 62,
The holder upper and lower air cylinders 63 are provided at an angle with respect to the insertion head 56 (FIG. 2).

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 7o.

These devices are always kept at a constant distance from the sides of the laminated paper 7. Therefore, 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 fluctuations in pallet lifting stoppage due to drooping of the ream marker 70, etc. as much as possible. The edge 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. The light emitters 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), so if the thickness of the ream marker 70 (paper tape) is thin, the detection may not be possible. Therefore, at least two sets of transmission type photoelectric switches are used in a cross-layered manner, 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. 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.

FIG. b 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 perot 57 has come to the end face position of the laminated paper 7.

In this state, the laminated paper 7 is slightly lifted by the bellows 57. The opening 57 is shaped like a seesaw around the tip of the insertion head 56 so as to follow the ream marker 70 as much as possible. As a result, the opening 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 bevel 57 is made of a thin and elastic material, even in the state shown in Fig. e, the tip follows the slope of the lower surface of the laminated paper 7 due to the load of the laminated paper 7. 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 detected as shown in Fig. 11a.
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 1 fixed to the left and right air cylinders 6l of the holder is used.
91 may be provided. This plate 191 aligns the ream markers 70 in a fixed direction as shown in FIG. 11b, 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 9l is provided to control the movement of the insertion head 56 according to the detection state of the sensor 90.

That is, the guide 59 is provided with a sensor 90, for example, a ream light projector 90a, a ream center projector 90b, and a ream left projector 90c, and these projectors 9oa. 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, in step 101, it is determined whether or not the ream marker 70 is located at the position of the ream center projector 90b. If the ream marker 7o is located, the light is blocked and the ream center floodlight 9
The light receiver (not shown) corresponding to 0b 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 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 slightly to the right, and the process moves to the next step 104. 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 9oC.
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, 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 the light is received, it is determined that the position of the ream marker 70 is normal, and step l07 (
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 9oa.
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 Reemlight floodlight 90
It is determined that the position a 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 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. By the above steps, ream marker 7
Guide the insertion head 56 to the 0 position.

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 light receiver C 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 control device 91 moves the insertion head 5S, but instead of moving the insertion head 56, the table 4 on which the laminated paper 7 is placed is 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 stack of papers 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 may be separated not only on the lower surface of the ream marker 7' as in this embodiment but also on the upper surface of the laminated paper 7 of the unit divided by the ream marker 7'.

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 can be considered to reduce the weight of the paper placed on the opening 57. As a means for this, when inserting the insertion head 56 between the sheets of the laminated paper 7 to separate the sheets, for example, as shown in FIG. It is also possible to adopt a means for inserting the insertion head 56 by blowing air from a tongue guide 59 (provided at the side of the tongue guide 59 facing the laminated paper 7) to reduce the weight of the paper applied to the mouth 57.

In addition, as a means to reduce the
An air port may be provided in another member (not shown) instead of in the inserter head 56. In addition, an air port may be provided in another member (not shown). It depends on the means.

The sending device D has the following configuration (see Figure 1).
．． That is, the x-axis unit 22 is located on the X-axis unit 11 in the positioning device B via a guide and a slider. 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 sides of the V-axis unit 22, respectively. Only one of these fixed forks 24, 24 is used at the same 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). ).

A screw 27 is attached to the V-axis unit 22, and can be rotated by a movable fork drive motor 26. The movable fork 25 can be slid left and right from this point. 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 reamer force 70 is shown as being inserted into M or M2 in FIG. 7, so the illustration is omitted, but the fixed fork 24 and the lower paper presser 28 are used only on the right side fixed fork 24, and on the left side. The fixed fork 24 is manually rotated horizontally by 90 degrees so that it does not interfere with the laminated paper 7 so that it does not function.

Conversely, if the ream marker 70 is inserted into M or M4 in FIG. 7, only the left fixed fork 24 is made to function. The laminated paper 7 is inserted into the insertion head 56 of the paper separation device C.
separated by a fixed fork 24. Movable fork 2
5 and the bottom paper presser 28 can be inserted. Figure b shows that the v-axis unit 22 once moves forward by a certain stroke;
After that, the bottom paper presser 28 is lowered to press the bottom paper.

Figure C shows the movable fork 25 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 ream has been sent. During this time, the lower paper presser foot 28 must be continuously pressed to prevent the lower paper from moving. 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. Along with this, the mark sensor emitter 60a and the light receiver 5
When the ream marker 70 is detected at 0b, the lid 1 stops rising. This stop operation is performed when the pallet lifting device A
Since the weight is 2.5 tons, mere forced stopping would result in large variations in the stopping position, making it impractical for practical use. Therefore, the mark sensor floodlight 60a. Ream marker 7 with receiver 60b
After detecting 0, as shown in FIG. 16, the sensor 60
(Mark sensor emitter 60a, light receiver 60b) sends a signal to the numerical control device 200, the numerical control device 200 switches the lifting operation of the lifter 1 to a numerically controlled deceleration operation, controls the servo motor 2, and detects the ream marker 70. It is controlled to stop at a certain distance from the position (for example, after detecting ream marker 70,
Stop the lifting operation of lifter 1 at m. ).

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 set-up must be completed before the first pallet of the lot starts operating. That is, the size of the laminated paper 7 is 420 x 530 to 920 x 1300 mm as shown in Fig. 6.
It changes to a wide width, and the thickness of one ream is, for example, 15~
Varying like 110mm range, ream marker 70
The insertion position is selected at one of the four locations as shown in Figure 7, and the position is not a constant position from the corner, but changes around 100 mm (however, In the case of the same lot, the amount of change is small), so manually change the settings of each axis of X, Y, Z, U, and C accordingly, and also change the settings to select the left or right side of the fixed fork 24. conduct. Select U for the lower paper presser foot 28.
Automatically selected by changing axis settings. After performing this setup change, the lifter 1 is lowered by about 100 mm, and then raised to open the mark sensor floodlight 60a.
．． When the light receiver 60b detects the ream marker 70, the ascent stops. 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 the value 1) of one standard value and one count 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 the insertion of the ream marker 70 in the previous process. When the lifter 1 stops rising, the left and right air cylinders 64 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 lifted diagonally upward using the vertical air cylinder 63, the ream marker 70 is surely lifted and the insertion head 56 can be inserted. This state is the state shown in FIG. 19a. Next, the state shown in FIG. 19b is reached through the operations shown in FIGS. 9a to 9e, and then when the left and right air cylinders 6 of the holder are fully out, the ream marker 70 that was being held hangs down. The state is shown in Figure 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, the movable fork 25, and the lower paper presser 28 of the feeding device D can be inserted therebetween. 1 per minute
In order to send out reams 2 to 15, inserting the insertion head 56 after the pallet 6 has stopped rising will not allow enough cycle time, so insert the insertion head 56 before the lifter 1 rises in this way and 1. When the lift is stopped, the upper part of the ream marker 70 is already lifted further as shown in FIG. 19d, so that the delivery device D can be operated immediately, 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 sending device D 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 together with the ream marker 70. 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 64 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. The ream marker 70 that was pulled out at that time was separately blown away with an air nozzle and recovered.

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 D advances further from the state shown in FIG. 19e, that is, the state shown in FIG. 18C, and reaches the state shown in FIG. 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.
This ensures that the ream is sent out smoothly.

The sent ream is received by the flat packaging machine E, and a reception completion signal is transmitted. 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 flat packaging 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. 22, 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 board 96 so as to slide vertically, and the slide cylinder 97 connects the fork 251 and the fixing plate 9.
It is made up of 8. The side edges of the fork 251 are rounded to prevent damage to the paper, and the sides are provided with air ports 120, 121 for discharging air.
is formed.

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
move forward at the same time (FIG. 18a), and then the fork 251 moves to the left in the figure (FIG. 18b), at which time the fork 25
1 can be moved up and down, so the paper is wavy (
Even if the sheets are stacked as shown in FIG. 23), the fork 25l can move up and down depending on the stacked state of the sheets to prevent damage to the sheets. Also, at that time, the fork 251 aero 120
The paper can be prevented from being damaged by blowing air out (Fig. 20c).

As a means for preventing damage to the paper, instead of the vertically movable fork 251, a means for discharging 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).
'J-m is sent to flat packaging 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 flat packaging machine E (FIG. 18d), the fork 24
In order to lift the forks 241, 251, one ream is slightly lifted using a slide cylinder to prevent the paper from being damaged, so that the lower surface of the fork does not come into contact with the paper below the forks 241, 251.

Note that in the automatic paper feeder lOO of this embodiment, some operations were performed manually using the handle, etc., but X. Y. Z, U. Each axis of C and C may be automatically controlled by data from a computer, and the positioning device B of the automatic paper feeder 100 of this embodiment may be automated, and furthermore, the function of the paper separation device may be performed by a person to feed the paper. Only device C may be automated.

C. Effects of the Invention Since the present invention is configured as described above, it has the following effects.

The reamer force is maintained by the holding means of the paper separation device, making it easier to insert the insertion head, and the insertion head is inserted between the sheets of calendar paper using the bottom surface of the ream marker as a guide, which prevents damage to the paper. can be well separated.

Furthermore, even if the ream marker is slightly deviated, the position of the ream marker can be detected by the detection means of the sensor that detects the position of the ream marker force, and the insertion head or the table on which the laminated paper is placed can be moved to the position of the ream marker by the control section. As a result, the paper can be separated into units of laminated paper divided by ream markers, and the paper can be separated effectively.

[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 diagram showing the device of the present invention, and FIG. 3 is a diagram showing a lower paper presser. 4 to 6 are state diagrams of laminated paper, FIG. 7 is a diagram of the arrangement of ream markers, FIG. 8 is an explanatory diagram of the action of the bellow guide and holder, and FIG. 9 is a diagram showing the state of the laminated paper. FIG. 11 is a diagram showing the insertion state of the insertion head; FIG. 10 is a layout diagram of the mark sensor; FIG.
13 is a command system circuit diagram for controlling the movement of the insertion head. FIG. 14 is a flowchart diagram showing the operation of the insertion head. Fig. 15 is an explanatory diagram of a method for reducing the weight of the ream when inserting the insertion head;
The figures are a command system circuit diagram that controls the movement of the lifter and a diagram showing the relationship between the lifter lifting speed and time, Figure 17, a command system circuit diagram that controls the lifting stop of the lifter, and a flowchart diagram showing its operation, and Figure 18. 19 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, FIGS. 20 and 21 are diagrams showing a fork that can move 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 with waves. C... Paper separation device, 7... Laminated paper 56.
...Insertion head, 64.59...Holding means 70...Ream marker, 60a, 60b...
・Sensor 91...Control unit

Claims (3)

[Claims] (1) A ream marker is inserted between sheets of laminated paper every predetermined number of sheets, a holding device holds the ream marker, and an insertion head is inserted using the lower surface of the ream marker held by the holding device as a guide. A paper separation device characterized by: (2) 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: an insertion head that is inserted into the paper gap; and a control section that controls the movement of the insertion head based on detection by the sensor. (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: an insertion head that is inserted into the paper gap; and a control unit that controls the movement of a table on which the stacked paper is placed based on detection by the sensor.