JPH02255428A - Stacked paper lifting gear - Google Patents

Abstract

PURPOSE:To stop a lifter at a specified distance from a mark detecting position by installing a stacked paper mount, a driving mechanism lifting this mount, a mark for sectioning the stacked paper at each specified number of pieces, a sensor detecting this mark and a control means controlling up motion of the mount after detection of the mark, respectively. CONSTITUTION:When a mount 6 mounted with stacked paper 7 is shifting on a conveyor 5, a stacked paper lifting gear A operates and a lifter 1 goes up. With this lifting, when a ream mark is detected by a mark sensor 60, the lifter stops its rising motion. In this case, since load of the stacked paper lifting gear A varies to 1-2.5tons, variations in a stop position is so large with a mere forced stop. Consequently, after detecting the ream mark with the sensor 60, a signal is transmitted to a control means 200 by numerical control from the sensor 60, rising motion of the lifter 1 is changed over to decelerating motion by the numerical control by this control means 200, controlling a servomotor 2, and the lifter is controlled so as to be stopped at a constant distance from a detection position of the ream mark.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a laminated paper lifting device equipped with a table on which laminated paper is placed.

(Prior Art) Conventionally, there is an automatic paper feeder having a laminated paper lifting device as described in Japanese Patent Application Laid-Open No. 188342/1983.

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

(Problems to be Solved by the Invention) In this type of pallet lifting device, after detecting the ream marker coming out of the stacked paper, the lifting operation of the pallet on which the 8IN paper is placed is stopped.

However, this stopping operation has the problem that the weight of the laminated paper placed on the pallet varies, for example, from 1 to 25 tons, so that if the paper is simply forced to stop, the stopping position will vary widely and the next operation will be hindered.

Furthermore, there is a problem in that if the rim marker, which is inserted between sheets of laminated paper every predetermined number of sheets, is forgotten to be inserted, the pallet cannot be stopped from rising.

(Means for Solving the Problems) In order to solve the above problems, the laminated paper elevating device of the present invention includes a table on which the laminated paper is placed, a drive mechanism for raising and lowering this table, and a drive mechanism for moving the laminated paper in a predetermined position. It is provided with a mark for sorting by number of sheets, a sensor for detecting this mark, and a control means for switching the raising operation of the platform to a deceleration operation by numerical control after detecting the mark with this sensor.

Further, the laminated paper lifting device of the present invention includes a table on which the laminated paper is placed, a drive mechanism for raising and lowering the table, a mark for sorting the laminated paper into a predetermined number of sheets, and a device for detecting the mark. a sensor, a control means for stopping the lifting operation of the platform after detecting the mark by the sensor, a counter for counting the amount of rise of the platform, and a means for issuing a warning when the counter amount exceeds a predetermined value. It has been established.

(Function) The laminated paper lifting device configured as described above is equipped with a control means that changes the lifting operation of the platform to a numerically controlled deceleration operation after detecting the mark using a sensor. Works to stop the platform from rising (.

Further, since a means for issuing a warning is provided when the amount counted by the counter exceeds a predetermined value, a person is notified that the stacked paper lifting device is in an abnormal state.

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

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

The laminated paper lifting device A has the following configuration.

That is, a drive mechanism for raising and lowering the table 6, for example, a servo motor 2 and a chain 3, which is connected to the chain 3 or rides on the lid 1 and the lifter 1, controls the torsional rotational change of the laminated paper 7 (FIG. 4). A separate sensor detects the deflection change in 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 JJI E. a table 4 for positioning the laminated paper 7, which is controlled to match the center line;
It is located on the table 4 and is composed of a conveyor 5 and the like for taking in and taking out the platform 6 when the lifter 1 is at the lowest stage. The table 6 and the laminated paper 7 on it are conveyor 5
will be installed on.

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 Z-axis unit 14 up and down with a handle (not shown).
3. The guide 12 and slider 15 cause the two-axis unit 14 to slide up and down on the X-axis unit 11. Further, by operating a handle (not shown) of a screw 16 fixed to the two-axis unit 14, the X-axis unit 17 is slid back and forth. A guide 18 is fixed to the X-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 7 is 42Q.
X 53Qmm to 920X 1300mm (Fig. 6), and the insertion position of the ream marker 70 (a mark for dividing the laminated paper 7 into a predetermined number of sheets, e.g. ream marker 70) has the same size. This corresponds to the fact that even the laminated paper 7 has one of four locations (FIG. 7).

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 MI 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 handbag device iE and the laminated papers 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 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.

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 53
A lifting air cylinder 54 for raising and lowering the insertion plate 56 is fixed to. The guides 55a and 55b are load bearing. The insertion head 56 has a bellows 57. The insertion head 56 inserts the laminated paper 7 with the frame marker 70 as the border.
The insertion head 56 is inserted into the laminated paper 7 in order to separate the ream marker 70 into upper and lower parts, and the insertion head 56 is inserted from the bottom surface of the ream marker 70 along that surface via the bellows 57 to avoid damaging the paper. I try to do that. 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 the insertion head 56 is pulled out from the laminated paper 7, the ream marker 70 is pressed down. This is to ensure that the parts 70 and 70 are pulled out together.

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, when the laminated paper lifting device A ascends, a mark sensor (sensor that detects marks) is provided with light emitters 60a, 60a and a light receiver 60b for determining the stopping position.
, 60b, attach the ream marker 70 to the bellows guide 59 and lift it upward as shown in FIG.
holder 64 for making it easier to insert 6, the holder 64
a holder up/down air cylinder 63 for pulling up the holder, a holder connecting plate 62 for connecting the holder left/right air cylinder 61 for approaching the holder 64 directly below the ream marker 70, and the holder up/down air cylinder 63;
The holder 64 and the holder up/down air cylinder 63 are coupled 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).

That is, as shown in FIG. 8, the holder 64 is tilted diagonally upward as shown by the arrow from the dotted line display position in order to flip the ream marker 70 up.

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.
The ream marker 70 may be held by providing a suction port (not shown) for sucking the zero.

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, 6Qb of the mark sensor can be arranged close to the side surfaces of the laminated paper 7, so that it is possible to suppress variations 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 laminated paper 7. Mark sensor floodlight 6
Since the Oa, 60a and the light receivers 60b, 60b perform detection by applying a light beam in the plane direction of the ream marker 70 (paper tape), there is a risk that detection may not be possible if the thickness thereof is thin.

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. 1O. Thereby, even if the ream marker 70 is thin, it can be detected reliably.

FIG. 9 shows how the push-in head 56 is inserted into the laminated paper 7 using the ream marker 70 as a guide, and 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 stack 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
The bellows 57 is located below the ream marker 70, so there is little risk of damaging the stacked 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 1 fixed to the left and right air cylinders 61 of the holder is used.
91 may be provided. This plate 191 aligns the ream markers 70 in a certain direction as shown in FIG. 11, and prevents the height of the ream markers 70 from fluctuating up and down, allowing the insertion head 56 to be stably inserted. ing.

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 tti 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 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 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 1st digit of the beam left 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 Fig. 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 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 projector 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 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 beam left projector 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 for correction, and the insertion head 56 is guided to the position of the ream marker 70 by zero or more steps returning to step 101.

In step Ill, 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 the operation may be stopped and a means to notify the person by a warning sound or the like may be used. Movement of the head 56 is performed by an insertion head drive means 92.

In the above embodiment, a transmission type photoelectric sensor (ream light emitter 90h 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 l ream above the ream marker 70 is thick, its weight makes it difficult to stably insert the bellows 57. 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 of doing so,
When inserting the sheet spacing insertion head 56 of the laminated paper 7 to separate the sheets, for example, as shown in FIG.
It is provided at the side of the tongue guide 59 facing the tongue guide 59. ) may be used to reduce the weight of the paper on the bellows 57 and insert the insertion head 56 therein.

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 obliquely 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 11 in the positioning device B has a V-axis unit 22 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 2'2, 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). ).

A screw 27 is attached to the V-axis 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 in an l-ream. This will be explained below.

Figure a shows the state just before the start of the operation.The ream marker 70 is shown as being attached to Ml or M in Figure 7, so the illustration is omitted, but the fixed fork 24 is the same as the fixed fork on the right side. 24 is used, and the fixed fork 24 on the left side is manually rotated horizontally by 90 degrees so that it does not function and does not interfere with the laminated paper 7.

Further, the lower paper presser 28 is used only on the right side, and the lower paper presser 28 on the left side is made inoperative.

Conversely, if the ream marker 70 is inserted into M 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 the fixed paper 24. The movable fork 25 and the lower paper presser 28 are designed to be movable.

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,
During this time, the bottom paper press λ28, which indicates the state in which one rim has been fed out, is continuously pressed so that the bottom paper does not move.

In the automatic paper feeder configured as described above, when the platform 6 carrying the stacked paper 7 moves onto the conveyor S, the stacked paper lifting device A is activated and the lifter 1 is raised. Along with this, mark sensor (sensor that detects marks) light emitter 60a
.

When the ream marker 70 is detected by the light receiver 60b, the lifting of the lifter 1 is stopped. This stopping operation is performed by the laminated paper lifting device A.
Since the load varies from 1 to 2.5 tons, mere forced stopping results in large variations in the stopping position and cannot be put to practical use. Therefore, the mark sensor emitter 60a and the light receiver 60
After detecting the ream marker 70 in step b, as shown in FIG. The servo motor 2 is controlled by switching the lifting operation to a deceleration operation using numerical control, and the lifter 1 is controlled to stop at a certain distance from the detection position of the ream marker 70 (for example, after detecting the ream marker 70, the lifter 1 ).

Note that the control means 200 controls the mark sensor projector 60a.
After the ream marker 70 is detected by the light receiver 60b, the distance until the lifter 1 stops rising remains constant even if the paper stack 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 is 420× as shown in FIG.
The width varies from 530 to 920 mm x 1300 mm, and the thickness of one rim varies, for example, from 15 to 801 mm.The insertion position of the ream marker 70 is set at four locations as shown in Fig. 7. One of the locations is selected, and the location is not at a fixed position from the corner.
Due to the change of 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 must be manually adjusted and fixed accordingly. Set % to select left or right fork 24
? &I do. 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 aln, then raised, and when the mark sensor emitter 60a and light receiver 160b detect the ream marker 70, the setup change is completed when the lifter 1 stops rising above 0.

During the lifting and stopping operation of the platform 6, each time the ream marker 70 is detected, as shown in FIG. (Control means for issuing a warning) The counted value at 212 is
Compare the upper values and the difference (ε = 1 standard value - count value 1)
If the difference is within the allowable range, it is considered normal, and if the difference is large, it is considered abnormal, and a warning is issued and the lifting of the platform 6 is stopped.

This makes it possible to automatically detect insertion errors of the ream marker 7o 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 the lowered state and is below the ream marker 7o. Then, when the holder 64 is pulled up obliquely by the vertical air cylinder 63, the ream marker 70 is reliably lifted and the insertion head 56 can be inserted. This state is the state shown in Fig. 19a. After the operation shown in Fig. 9 a'=e, the state shown in Fig. 19 is reached. After that, when the air cylinders 61 for left and right of the holder are fully out, the hold is made. The ream marker 70 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 defining 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 2 to 15 reams, if the insertion head 56 is inserted after the platform 6 stops rising, the cycle time will not be sufficient for the alignment, 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. Thereafter, the movable fork 25 is moved 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 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 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 and that it is absent after blowing. 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 tips of each of the fixed fork 24 and the movable fork 25 inserted between the lower surface of the feeding frame and the upper surface of the lower paper.
Make sure that the feed-out mechanism is fed out smoothly.
Ru.

The delivered ream is received by the handy packaging mE, 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 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. 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 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
move forward at the same time (Fig. 18 a, b), and then the fork 251 moves to the left in the drawing (Fig. 18 S, c). At that time, the fork 251 can move vertically, causing the paper to wave. Even if the sheets are stacked in the stacked state (FIG. 23), the fork 251 can move up and down depending on the stacked state of the sheets to prevent damage to the sheets. Also, at that 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.

In addition, in the state shown in Fig. 18C, for the topmost ream of one paper in the stack, the fork 241.251 is attached to the bottom of the paper below the layer.
The lower surfaces of the forks 241 and 251 come into contact with the top surface of the topmost sheet of paper in the ream below, but when sending one ream to the manual wrapping machine E (FIG. 18d), the fork 24
For example, to lift the fork 241.251 so that the underside of the fork does not touch the paper below 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, 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. Further, the drive of the stack 1 paper elevating device A may be driven by a hydraulic cylinder instead of a motor or a chain.

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

A table on which the laminated paper is placed, a drive mechanism for raising and lowering the table, a mark for sorting the laminated paper by a predetermined number of sheets, a sensor for detecting the mark, and a sensor for detecting the mark by the sensor. Since a control means is provided to switch the lifting operation of the platform to a deceleration operation using numerical control,
It can stop at a certain distance from the mark detection position.

Also, a table on which the laminated paper is placed, a drive mechanism for raising and lowering the table, a mark for sorting the laminated paper into a predetermined number of sheets, a sensor for detecting the mark, and a sensor for detecting the mark by the sensor. A control means for stopping the lifting operation of the table after the lifting operation, a counter for counting the amount of rise of the table, and a means for issuing a warning when the amount counted by the counter exceeds a predetermined value are provided. It is possible to eliminate the abnormal state of the elevating device.

[Brief explanation of drawings]

FIG. 1 is a diagram schematically showing an automatic paper feeder in which the apparatus of the present invention is used, FIG. 2 is a perspective view showing a separating device of the automatic paper feeder, and FIG. , a diagram showing the lower paper presser, FIGS. 4 to 6 are state diagrams of laminated paper, FIG. 7 is a ream marker arrangement opening, FIG. 8 is an explanatory diagram of the action of the bellows guide and holder, FIG. 9 is a diagram showing the insertion state of the insertion head, FIG. 10 is a layout diagram of the mark sensor, FIG. 11 is a diagram showing the state of the ream marker inserted between the sheets of laminated paper, and FIG. 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 that controls 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 weight of the ream when inserting the insertion head, and FIG. 16 is a command for controlling the movement of the main part of the present invention, the glue lid. A system circuit diagram and a diagram showing the relationship between lifter ascending speed and time, FIG.
A command system circuit diagram for controlling the lifting 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, Figures 20 and 21 are diagrams showing a fork that can move up and down, Figure 22 is a diagram showing the state of the laminated paper on the table and the state of the ream marker, and Figure 23 is a diagram showing the state of the laminated paper on the table making waves. FIG. A...Laminated paper lifting device, 6...stand 7...
...Laminated paper, 60.60a, 60b...Sensor 70...Marker, 200...Control means 212...Control means for issuing a warning oa Sairo Ward Sai Sun Ward Hori Ward M2 No. A No. B Sai Yuki Ward 10 Sufupu No. 2 map

Claims (2)

[Claims] (1) A table on which the laminated paper is placed, a drive mechanism for raising and lowering this table, a mark for sorting the laminated paper by a predetermined number of sheets, a sensor for detecting the mark, and a sensor for detecting the mark by the sensor. A laminated paper lifting and lowering device characterized in that it is provided with a control means for switching the lifting operation of the platform to a deceleration operation by numerical control after detection. (2) A table on which the laminated paper is placed, a drive mechanism for raising and lowering this table, a mark for sorting the laminated paper by a predetermined number of sheets, a sensor for detecting the mark, and a sensor for detecting the mark by the sensor. The laminated structure is characterized by comprising a control means for stopping the lifting operation of the platform after detection, a counter for counting the amount of rise of the platform, and a means for issuing a warning when the counter amount exceeds a predetermined value. Paper lifting device.