JP3475300B2 - Sheet separation equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for separating a predetermined number of sheet-like objects which are slightly shifted from each other, and more particularly to a sack sticking machine, a delivery part of a frame sealer, and a scissor-like device. The present invention relates to a separating device that separates conveyed cartons into a predetermined number of sheets. The sashimi shape means a state in which a plurality of sheet-like materials are slightly shifted and overlapped.

[0002]

2. Description of the Related Art Conventionally, a sheet-like material separating device which counts a predetermined number of sheet-like materials conveyed in a state of being slightly overlapped and overlaps each other and separates the sheet-like material every predetermined number of sheets is usually
It is installed and used near the delivery section. In general,
At the time of separation, it is not possible to stop the whole production, and in the case of simply partitioning, the partition locally stops the progress of the squeezed sheet-like material, and the pitch of the sheet-like material of the part counted by the sensor is Changes locally (decreases pitch).
For this reason, it is impossible to accurately count the number of members, so normally, as shown in FIG. 4, a magazine, that is, an accumulating section (accumulation section) is provided so as not to change the pitch during the transportation, and the stacking is performed once. The sheets are accumulated and sent out from the accumulating portion at a constant pitch, and while counting the number, the sheets are separated into a predetermined number and conveyed as a bundle. However, as a result of providing the accumulating section (accumulation section), there are problems that the entire apparatus is large and expensive, and that the process is long due to the provision of the accumulating section (accumulation section). Further, in the case of the device as shown in FIG. 4, due to the friction between the scissors-shaped sheet-like objects, they are not separated in a predetermined number,
The separation roller 47, which is rotating at a high speed, may be pulled in more than a predetermined number, which is a serious problem.

A conventional separating device shown in FIG. 4 will be described below in the case of separating a carton such as a milk container.
The folding boxes 40A of the carton are once accumulated in the magazine 41 in a laminated form, and then the number of sheets can be counted, and the folding boxes 40A are counted, and after counting, they are separated into a predetermined number of bundles. Specifically, the folding box 40A of the carton stored in the magazine 41 is rotated by the drum 43 with the nail,
By this claw, the folding boxes 40A of the carton are sent out from the magazine 41 one by one to the conveyor 45 for conveyance in which the guides 44 are arranged. In the state of being conveyed and wrapped in a constant pitch, the photoelectric sensor 46 counts the number of folding boxes 40B of the carton, and the counted cartons are bundled on the conveyor 48 for conveyance. Folding box 4 of scissors-shaped carton when the predetermined number is counted
The flow of 0B is stopped, the separation roller 47 on the downstream side of the flow is rotated at high speed, and the flow of the folding box 40B of the constant pitch scissors carton and the counted bundle 40C of the carton folding boxes are separated. To do. The degree of protrusion of the claw of the drum with the claw is adjusted by the doctor 42. The above separating operation will be briefly described below with reference to FIG. First, as shown in FIG. 5A, a carton folding box 40B.
Have already been diced and are bundled on the conveyor belt conveyor 48 while being counted. Conveyor 45 for transportation
In operation, the separation roller 47 is rotating at a normal rotation speed. Then, at the time when the predetermined number is counted, the flow of the folding box 40B of the transporting conveyor 45 stop carton is stopped and the separation roller 47 on the downstream side of the flow is rotated at a high speed, and the folding box 40B of the scissor-shaped carton is ,
It is separated from the carton folding box 40C which is bundled in a predetermined number. (FIG. 5 (B)) However, in the above case, the separation is performed by stopping the flow of the constant-pitch scissors (flow of the carton folding box 40B) and rotating the downstream separation roller 47. Since the constant-pitch box-like boxes 40B are overlapped with each other with a slight shift, the undesired extra carton P is separated by the friction between the folding boxes of the cartons.
However, there is a problem in that it cannot be separated by a predetermined carton Q, and cannot be accurately separated by a predetermined number of sheets.

[0004]

As described above, in the conventional separating apparatus, there are cases where the predetermined number of sheets cannot be properly separated due to friction. Under such circumstances, the present invention is capable of locally changing the pitch (reducing the pitch) without stopping the conveying system when separating sheet-like objects that are conveyed while being slightly overlapped. The present invention is intended to provide a device that can be accurately separated without causing (1).

[0005]

In the sheet-like object separating apparatus of the present invention, the number of sheet-like objects conveyed in a state where they are slightly shifted and overlapped is counted by the number sensor, and is adjusted to the count of the number sensor. Is a device for separation,
A first holding unit for holding a predetermined sheet-shaped article or a plurality of sheet-shaped articles including the predetermined sheet-shaped article according to the count of the number sensor, and a second holding section, A first drive unit that moves the holding unit and the second holding unit at a predetermined interval in synchronism with the conveying speed of the sheet-like material, and the flow of the first holding unit and the second holding unit. Downstream of
And a second drive unit for moving only the second holding unit for holding the sheet-like object located at the position 1 to move the speed faster and to widen the distance between the two holding units. Specifically, in the sheet-shaped product separating apparatus of the present invention, the first holding unit and the second holding unit each include a clamp unit that sandwiches the sheet-shaped product from above and below. Further, the first holding portion and the second holding portion each include a claw portion that holds the sheet-like material from above and below. Further, the first holding portion and the second holding portion are respectively suction portions for holding the sheet-like material from above or below. Further, the first holding portion and the second holding portion are each a clamp portion for holding and holding the sheet-like material one by one from above or below. Here, the upstream side and the downstream side mean upstream and downstream with respect to the flow direction of the sheet-shaped material, and the upper side and the lower side mean the upper side and the lower side of the sheet-shaped material. The sheet-like material separating device of the present invention separates sheet-like material conveyed by a conveyor or the like, and performs separation while holding it by a clamp portion, a claw portion, or the like. It is called a holding unit.

Further, in the method for separating sheet-like objects of the present invention, the number of sheet-like objects conveyed in a state of being slightly overlapped and overlapped is counted by the number sensor, and the separation is performed in accordance with the count of the number of member sensors. A method of performing, (1) a first holding part and a second holding part capable of respectively holding a predetermined sheet-like object or a plurality of sheet-like objects including the sheet-like object in accordance with the count of the number sensor. A step of moving the sheet-like object at a predetermined interval while being synchronized with the conveying speed, (2) a step of holding the sheet-like object by the first holding portion and the second holding portion in accordance with the count of the number sensor, (3) After that, the downstream side of the flow of the first holding portion and the second holding portion
And a step of moving the holding portion for holding the sheet-like material in the opposite direction more quickly to widen the distance between both holding portions and separating the flow of the sheet-like material. Then, when the first holding part and the second holding part are moved at a predetermined interval while being synchronized with the transport speed, the first holding part and the second holding part are moved integrally. Is.

[0007]

With the sheet-like material counting and separating apparatus of the present invention having such a configuration, the sheet-like material conveyed by wrapping a plurality of sheets is counted every predetermined number of sheets,
When the separation is performed for each predetermined number of sheets, accurate counting can be performed without stopping the conveying system and locally changing the pitch (smaller pitch) in the number sensor unit. Further, there is no error in the number of sheets due to the friction between the sheet-like objects as in the conventional device.

[0008]

EXAMPLES Examples of the present invention will be given and described with reference to the drawings. First, an apparatus according to the first embodiment will be described that uses a clamp unit that holds a sheet-shaped object as a holding unit for the sheet-shaped object. Although FIG. 1A is a perspective view showing the outline of the apparatus of the first embodiment, the apparatus of the first embodiment will be described below with reference to FIG. The conveyer 3 is driven by a drive source (not shown) and conveys a row of sheet-like materials 2 wrapped in a scissor shape by two belts from right to left in the figure. The conveyor 3 for conveyance is equipped with a conveyor speed sensor (not shown), and is connected to the controller so as to send a conveyor speed signal to the controller of the separator 1. The number sensor 1C is arranged above the transport conveyor 3 toward the transport surface of the transport conveyor 3,
It is fixed to a machine frame (not shown) via an arm. The number sensor is connected to the control unit so as to send a detection signal to the control unit. The clamp portion 1A has upper and lower plates arranged so as to sandwich and hold a sheet-like object, and the upper plate is supported by a block 7a movably supported in the sheet-like object conveying direction via an arm. And the lower plate is a cylinder 6a fixed to the block 7a.
It is fixed to the cylinder rod of. The lower plate of the clamp portion 1A has a width that can be raised and lowered between the belts of the conveyor 3 for conveyance, and is moved up and down from below the conveyor surface of the conveyor by the cylinder 6a until the upper plate of the clamp 1A is pressed. . The cylinder 6a has a first upper limit sensor that detects that the cylinder rod has risen and the lower plate of the first clamp portion has come to a position where the upper plate sandwiches the sheet-like object, and the cylinder rod descends to provide the first clamp. A first lower limit detection sensor that detects that the lower plate of the section is below the convey surface of the conveyor. The clamp portion 1B has upper and lower plates arranged so as to sandwich and hold the sheet-like object, and the upper plate is provided with an arm on a block 7b supported so as to be movable in the sheet-like object conveying direction with respect to the block 7a. The lower plate is fixed to the cylinder rod of the cylinder 6b fixed to the block 7b. The width of the lower plate of the clamp portion 1B is also such that it can be moved up and down between the belts of the conveyor 3 for conveyance, and the cylinder 6b moves up and down from below the conveyor surface until the upper plate of the clamp 1B is pressed. . Also, in the cylinder 6a, the second rod upper limit sensor that detects that the cylinder rod moves up and the lower plate of the second clamp section and the upper plate sandwich the sheet-like object, and the cylinder rod descends And a second lower limit detection sensor that detects that the lower plate of the two clamps is below the conveying surface of the conveyor. The block 7a is supported by a guide member so as to be movable in the conveyance direction of the sheet-like material, and is driven by the first driving unit 1D in the conveyance direction of the sheet-like material and in both directions opposite to the conveyance direction. The first drive unit 1D rotates the motor 4a in the rotation direction designated by the instruction of the control unit (not shown) and at the designated rotation number, transmits the rotation of the motor to the screw unit 5a, and moves the block 7a. It is a thing. Further, the first drive section is provided with a first position sensor for detecting the position of the block 7a, and outputs the relative position of the first clamp section with respect to the number sensor 1C. The block 7b is movably supported on the block 7a via a guide member in the sheet conveying direction, and is conveyed by the second drive unit 1E with respect to the block 7a in the sheet conveying direction and in a direction opposite to the sheet conveying direction. Driven in both directions. The second drive unit 1E rotates the motor 4b in the rotation direction instructed by the instruction of the control unit (not shown) and at the designated rotation speed, and rotates the motor 4b by the screw unit 5.
b to move the block 7b.
Further, the second drive unit is provided with a second position sensor for detecting the position of the block 7b, and outputs the relative position of the second clamp unit with respect to the number sensor 1C. The control unit receives signals from the number sensor, the first position sensor signal, the second position sensor, the first upper limit sensor, the second upper limit sensor, the first lower limit sensor, the second lower limit sensor, and the transport speed signal of the transport conveyor, The control unit controls the first drive unit, the second drive unit, the first clamp unit, and the second clamp unit. Then, the control section indicates the number of sheets to be separated, the number of sheets to be separated, the length of the sheet in the conveying direction, the instruction to correct the initial positions of the first clamp section and the second clamp section, and the instruction to correct the separation distance. , Correction instruction of the clamp start position of both the clamp portions, the cylinder 6a
And an input section for inputting an instruction to raise and lower the cylinder 6b at each origin position, an instruction to start the separation operation of the sheet-like object, an instruction to start and stop the separation operation, and an instruction to return the count value of the sheet-like object to zero. A display unit for displaying the counted number of sheet-like objects and the number of times the sheet-like objects are separated is also provided. The control unit counts the signals that have detected the passage of the sheet-like material input from the number sensor, compares it with the number of separated sheets input and stored from the input unit, and when the number of separated sheets and the count value match,
An instruction to start separation is issued, and the count value of the sheet-like material is returned to zero. Then, the counting of the sheet material is continued. Also, from the signals input from the first position sensor and the second position sensor,
The position of the first clamp part and the position of the second clamp part are calculated. Also, a table is stored which shows the correspondence relationship between the length of the sheet material in the conveying direction, the origin positions of the first clamp portion and the second clamp portion, and the clamp start positions of the both clamp portions. When the length in the conveyance direction of is input from the input unit, the initial positions of the first clamp unit and the second clamp unit, and the clamp start positions of the both clamp units are calculated and stored. Also, the initial value of the separation distance of the sheet-like material is stored. The origin position, the clamp start position, and the separation distance of both clamps can be changed by a correction instruction input from the input unit.

The operation and control of the separation apparatus of this embodiment will be described below with reference to FIG. 3 by taking an example in which the folding boxes of the carton are shifted and overlapped and conveyed. Figure 3
(A) is a diagram showing a state before the conveyor 3 is driven, the folding box of the carton is conveyed at a constant speed by the conveyor 3, and the separating device starts the separation operation, and the conveying direction of the folding box of the carton is shown. Has already been input from the input section, the control section refers to the table, and the clamp section 1
The initial positions of A and the clamp portion 1B and the clamp start positions of both the clamp portions are calculated and stored. Then, the control unit controls the driving unit so that each clamp unit is located at the initial position of the clamp unit 1A and the clamp unit 1B, and each clamp unit comes to each origin position. And the clamp part 1
The interval N between A and 1B is a value suitable for the length of the carton in the carrying direction. Next, when an instruction to start the separation operation is input from the input unit, the control unit sets the count value (count) of the number of passed cartons to zero, and then starts counting. Next, FIG. 3 (b) is a diagram when the count value reaches the predetermined number of divided sheets input from the input unit.
Can sandwich a carton whose count value is divided into
The carton next to the carton divided into the number of divided sheets is at the origin position where the carton divided into the divided number is located at the origin position where the carton next to the carton divided into the number of divided sheets is located at the origin position where the carton divided into the number of divided sheets is not caught. When the count value reaches the number of divisions, the control unit issues an instruction to start division, and controls the first drive unit 1D to move each clamp unit at a speed synchronized with the speed signal of the conveyor 3. Start. Next, FIG. 3C is a diagram showing that the respective clamp portions have been moved to the clamp start position. Then, when the position of the clamp 1A reaches the clamp start position, the control unit sends a signal to start the clamp to the clamp units 1A and 1B, the cylinder rods of the cylinders 6a and 6b start to extend, and the lower clamps fixed to the respective cylinder rods. The side plate begins to rise towards the upper plate as it moves between the belts of the conveyor 3, and then begins to lift the cartons that are misaligned and conveyed. Next, FIG. 3D is a diagram in which the cylinder rod is extended and the carton is sandwiched between the lower plate and the upper plate fixed to each cylinder rod. Here, the extension of the cylinder rod is stopped when a predetermined pressure is applied to the carton. At this time, the clamp 1B sandwiches the carton whose count value is the number of divided sheets, and does not sandwich the carton next to the carton whose divided number is the divided number. Clamp 1
A is sandwiched between the cartons next to the carton whose count value is the number of divided sheets, and is not sandwiched the carton whose divided number is the number of divided sheets. Then, at this time, both upper limit sensors of the cylinder 6a and the cylinder 6b detect that the respective cylinder rods have risen and the lower plate of the clamp portion has come to the position of sandwiching the sheet-like object with the upper plate, and the control portion The second drive unit 1E determines the drive speed of the second drive unit 1E based on the speed of the conveyor 3 and the initial value of the separation distance that is predetermined and stored or the separation distance corrected by the input unit. To control. Next Figure 3 (e)
FIG. 6 is a diagram when the second driving unit moves the respective clamps relatively away from each other, separates the overlapped cartons clamped by the respective clamps, and the distance between the respective clamps reaches the separation distance. . Then, the control unit detects the distance between the clamp portions from the second position sensor and compares the distance with the stored separation distance, and determines that the distance between the clamp portions matches the separation distance. The drive unit is stopped and a signal for unclamping each clamp unit is sent to both clamp units. Then, the cylinder rod starts descending at both clamp portions. Next, FIG. 3 (f) is a view when the lowering of the cylinder rods of both clamp portions is completed. At this time, the control unit detects by the first and second lower limit detection sensors that the lower plate of the first clamp unit is below the convey surface of the conveyor, and controls to stop the first drive unit. To do.
Then, the first drive unit and the second drive unit are controlled so that each clamp unit is returned to each origin position and at the stored maximum speed. Next, FIG. 3 (g) is a diagram in which both clamp parts are returned to the origin position. 3 (a) to 3 (g), the number of cartons to be divided next, which passes under the number sensor, is progressing, and FIG. 3 (b) to FIG.
By repeating the step (g), it is possible to perform partition separation for each predetermined number.

A method of setting each origin position of each clamp section of the table of the control section will be described with reference to FIG. Here, as described with reference to FIG. 3, the sheet-like object J is a sheet-like object in which the count value of the control unit is set to a predetermined divided number, and the sheet-like object K is the next sheet-like object,
Counting starts anew from this sheet-shaped material. Then, the sheet J is sandwiched between the clamps 1B and the sheet K
It is necessary that the sheet-like material K is sandwiched by the clamp 1A without sandwiching the sheet-like material J and the sheet-like material J is not sandwiched. From this,
As shown in (b), the distance between both clamps is L1,
When the amount of deviation of the sheet-like material projected in the carrying direction and the length of the sheet-like material in the carrying direction are L2 and W, respectively, L1
Must satisfy the condition of expression (1). (W-L2) <L1 <(W + L2) (1) Therefore, the origin position of each clamp part is set so that such a relationship is established, and the actual position is tested to determine the table value. In addition, the clamp start position is actually a position where each clamp part starts clamping, lifts the sheet-shaped object, and sandwiches the sheet-shaped object so as not to make an error in detecting the passage of the sheet-shaped object by the number sensor. Test and determine the values in the table. Thus, when the number sensor detects the sheet-like material J, each clamp portion is at the origin position where the sheet-like materials J and K to be separated can be accurately clamped, and is moved following the movement of the sheet-like material. , And the sheet material is clamped, so accurate separation can be performed. Further, since the clamping is started from the clamp start position on the downstream side of the number sensor, the change of the pitch does not occur in the sheet-like object under the number sensor, and the accurate number can be obtained, and the conveyance of the sheet-like object is not stopped. Allows accurate separation of members.

The operation of the cylinders 6a and 6b is compressed air.
Any of electromechanical type may be used. The first drive unit may be driven directly by the conveyor 3 for conveying the sheet-like material, using a clutch and a gear. Also, the first drive unit 1D moves the clamp units 1A and 1B as a unit, but this is because the spacing between the clamp units 1A and 1B can be easily controlled, and the clamp units 1A and 1B can be independently moved. It may be driven and controlled similarly to the first embodiment. The separating apparatus according to the first embodiment of the present invention can operate as described above, and can separate the sheet-like material on the upstream side of the separating position without changing (decreasing the pitch) the distance to a predetermined distance. I am supposed to. As a result, when the separation is performed, the distance between the sheet-like materials at the position of the number sensor does not change (the pitch is reduced), so that the number sensor can provide an accurate number. Then, the position of the number sensor can be separated from the position where the separation is performed, the number sensor is not easily affected by the separating operation, and an accurate number is possible.

A second embodiment of the present invention will be described. Example 2 is
2 (A) shows the main part, except that the clamp parts 1A, 1B in the first embodiment are replaced by the claw parts 11A, 11B, and the other parts are the same as in the first embodiment. That is, the claw portion 11 holds the sheet-like material by the clamp portion in the apparatus of the first embodiment.
Instead of holding by A and 11B. Regarding the operation of the claw portion that holds the sheet-like material in this case, FIG.
I will explain based on. The predetermined sheet L is rotated and hooked by the lower claw portion 11B from the solid line position to the broken line position, and the predetermined sheet M adjacent to the predetermined sheet L is held by the upper claw portion 1B.
At 1A, it is rotated from the solid line position to the broken line position and hooked and held. In the separation, in this state, the space between the claw portions is widened and the separation is performed. Basically, the separation is performed between the predetermined sheets by the same operation as in the first embodiment. The claws 11A, 1
The shape and size of 1B, the positions of both claws when holding the carton, etc. need to be appropriately selected. Regarding the position of the claws, a plurality of claws may be provided on the upper side and the lower side of the sheet-shaped material, and the upper side and the lower side of the sheet-shaped material may be suppressed from the lateral direction of the sheet-shaped material.

A third embodiment of the present invention will be described. Example 3 is
2 (b), the clamp part 1A in the first embodiment is replaced with a suction part 21A, and 1B is replaced with a suction part 21B having a plurality of suction parts. Others are the same as in the first embodiment. is there. That is, the holding of the sheet-like material by the clamp portion in the apparatus of the first embodiment is replaced by the holding by the suction portions 21A and 21B, and the suction is performed by vacuum suction. Adsorption parts 21A and 21B are cylinders 26a and 26b, respectively.
Is moved by a predetermined stroke in a direction perpendicular to the carrying direction. Regarding the positions of the suction portions 21A and 21B, they may be arranged on the upper side or the lower side as in (1) to (3) of (b).

Example 4 of the present invention will be described. Example 4 is
FIG. 2C shows the main part, but the clamp part 1A in the first embodiment has the clamp part 31 sandwiching the end part of one sheet-like object.
A is replaced with a clamp part 1B instead of a clamp part 31B having a plurality of clamp parts sandwiching an end of one sheet-like object, and the other parts are the same as in the first embodiment. That is, the holding of the sheet-like material by the clamp portion in the apparatus of the first embodiment is replaced by the holding by the clamp portions 31A and 31B. The clamp parts 31A and 31B are moved vertically by a predetermined stroke by the cylinders 26a and 26b in the transport direction.

The separating device of the present invention is a sack pasting machine,
It can be used not only for frame sealers but also for separating sheet-shaped products in the form of scissors.

[0016]

As described above, the sheet-like material separating apparatus of the present invention counts a predetermined number of sheet-like materials conveyed while wrapping a plurality of sheets and separates them every predetermined number of sheets. In addition, the number of sensors can be increased without stopping the transportation system.
The pitch of the sheet-like material in the existing portion does not cause a local pitch change (smaller pitch), and an accurate number can be obtained. Further, it is possible to provide a device such as the conventional device shown in FIG. 4 in which there is no error in the number of sheets due to the friction between the sheet-like objects. Further, since the stacking section (magazine section) as in the apparatus shown in FIG. 4 is not required, the whole process can be shortened.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a first embodiment of the present invention.

FIG. 2 is a schematic view of a main part of Examples 2 to 4 of the present invention.

FIG. 3 is a schematic diagram illustrating the operation of the device according to the first embodiment of the present invention.

FIG. 4 Diagram of conventional separation device

FIG. 5 is a schematic diagram illustrating the operation of a conventional separation device.

[Explanation of symbols]

1 Counting / separating device 1A upstream clamp 1B Downstream clamp 1C number sensor 1D first drive 1E Second drive 2 sheets 3 Conveyor for transportation J, L prescribed sheet K, M predetermined sheet N Distance between clamp 1A and 1B N 11A Upper claw 11B Lower claw 11C number sensor 12 Sheets 21A Upstream adsorption part 21B Downstream adsorption part 31A upstream clamp part 31B Downstream clamp part 40A folding box 40B Sashimi-shaped folding box 40C Folding box 41 Magazine 42 Doctor 43 Drum with claws 44 Guide 45 Conveyor for transport 46 Photoelectric sensor 47 Separation roller 48 conveyor P extra carton Q predetermined carton

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 62-21675 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65H 33/12

Claims (7)

(57) [Claims] 1. A device for counting the number of sheet-like objects conveyed in a state of being overlapped with each other by a small number of sensors, and performing separation according to the count of the number of sensors, which counts by the number of sensors. A first holding part for holding a predetermined sheet-like material or a plurality of sheet-like materials including the predetermined sheet-like material together, and a second holding part, and the first holding part and the second holding part. under a holding portion at a predetermined distance, a first drive unit for moving tuned to the conveying speed of the sheet as an integral, it flows out of the first holding portion and the second holding portion
A sheet-like material separating device comprising: a second drive portion that moves only the second holding portion that holds the sheet-like material that is located on the flow side further quickly to widen the gap between both holding portions. . 2. A sheet-shaped material separating device, wherein each of the first holding portion and the second holding portion in claim 1 is a clamp portion for sandwiching the sheet-shaped material from above and below. 3. The sheet-like material separating device according to claim 1, wherein the first holding portion and the second holding portion each comprise a claw portion for holding the sheet-like material from above and below. . 4. The sheet-like material separating device according to claim 1, wherein each of the first holding portion and the second holding portion is an adsorption portion for holding the sheet-like material from above or below. . 5. The first holding part and the second holding part in claim 1 are each a clamp part for clamping and holding one sheet-like object from the top or bottom. Separation device for sheet material. 6. A method for counting the number of sheet-like objects conveyed in a state of being slightly overlapped with each other by a number sensor and performing separation according to the count of the number sensor, comprising (1) a number sensor In accordance with the count of, the first holding unit and the second holding unit capable of respectively holding a predetermined sheet-shaped object or a plurality of sheet-shaped materials including the sheet-shaped material are synchronized with the conveying speed at predetermined intervals. While moving, (2) Then, according to the count of the number sensor,
A step of holding the sheet-like material by the first holding portion and the second holding portion, (3) After that, holding the sheet-like material in the downstream direction of the flow of the first holding portion and the second holding portion And a step of moving the holding section to further increase the distance between both holding sections to separate the flow of the sheet-like article. 7. The first holding part and the second holding part according to claim 6, when the first holding part and the second holding part are moved at a predetermined interval while being synchronized with the conveying speed. A method for separating a sheet-like material, characterized in that the sheet and the part are moved together.