JP2009263084A - Sheet material separating apparatus and sheet material separating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet material separating apparatus and a sheet material separating method capable of reliably separating only one topmost sheet material from a plurality of sheet materials adhering to one another via oil or the like. <P>SOLUTION: The sheet material separating apparatus has a lift mechanism 7 equipped with vacuum pads for hoisting the topmost sheet material 2 from a plurality of stacked sheet materials 2, 3, a magnetic floater 4 to separate the topmost sheet material hoisted by the lift mechanism from a plurality of sheet materials 3 lower than the topmost one, and a compressed fluid jet nozzle 5 to blow a compressed fluid against side faces of the topmost sheet material being separated and the lower sheet materials to accelerate the separation of the lower sheet materials, wherein the compressed fluid jet nozzle is arranged so as to jet the compressed fluid to the upper part of a side-face coincident line between the topmost sheet material and the lower material. This improves a separation effect to easily and reliably take out only the topmost sheet material. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sheet material peeling apparatus and a sheet material peeling method, and more specifically, only one uppermost sheet material is selected from a plurality of sheet materials that are in close contact with oil or the like by using a magnet floater and a compressed fluid injection nozzle in combination. The present invention relates to a sheet material peeling apparatus and a sheet material peeling method that can reliably peel. The sheet material peeling apparatus and the sheet material peeling method can be applied to any sheet material, and in particular, can be applied to heavy objects such as a steel plate.

In tailored blank lines, press lines, etc., a plurality of sheet materials such as thin steel plates are stacked and stocked, and the next sheet is picked up by lifting the top sheet material one by one from the stacked sheet materials. It is transported to.
Here, oil components such as lubricating oil and cleaning oil are adhered to the surface of the sheet material, and the sheet materials adhere to each other by being laminated over a long period of time. For this reason, when the uppermost sheet material is lifted from the laminated sheet material, a plurality of lower sheet materials may be lifted together while being in close contact with each other. If it is transported to the next process with multiple sheets in close contact, it will cause trouble in the line. In that case, the lower sheet must be removed and removed manually, which increases productivity. There was a problem of lowering.
In order to solve this, conventionally, when the uppermost sheet material is lifted from the laminated sheet material and carried into the production line, the lower sheet material lifted together with the uppermost sheet material is peeled off, and the uppermost sheet material is peeled off. Various sheet material peeling apparatuses that take out only one sheet material have been employed.
As a peeling device for the sheet material such as a steel plate, a device that peels the laminated sheet material by magnetizing and magnetically repelling it using a magnet floater, and a compressed air injection nozzle using a compressed air injection nozzle The apparatus etc. which peel by being sprayed on (for example, refer patent document 1, 2) are employ | adopted.

JP 2002-361585 A JP 2000-318861 A

  Furthermore, in the apparatus using only the magnetic floater, there is a case where the lower sheet material that is in close contact with the uppermost sheet material cannot be peeled off. Moreover, in the apparatus using the compressed air injection nozzle, since the compressed air was simply sprayed on the side surface of the sheet material, the peeling effect was not high.

  The present invention is intended to solve such a problem, and in particular, a sheet material peeling apparatus and a sheet material capable of reliably peeling only one uppermost sheet material from a plurality of sheet materials closely adhered by oil or the like. An object is to provide a peeling method.

The present invention is as follows.
1. A lifting mechanism having a suction pad for lifting the uppermost sheet material of a plurality of laminated sheet materials, the uppermost sheet material lifted by the lifting mechanism, and a plurality of lowermost sheet materials than the highest level A sheet material peeling apparatus comprising: a magnet floater that peels off a compressed fluid jet nozzle that sprays a compressed fluid onto the side surfaces of the uppermost sheet material and the lower sheet material that are being peeled to promote peeling of the lower sheet material The compressed fluid ejection nozzle is disposed so as to eject the compressed fluid above the overlapping line on the side surface of the uppermost sheet material and the lower sheet material. apparatus.
2. The compressed fluid injection nozzle is disposed so as to inject the compressed fluid toward 1.5 mm or more above the superposition line. The sheet | seat material peeling apparatus of description.
3. The compressed fluid injection nozzle is disposed so that an injection angle formed by two sides of the injection direction of the compressed fluid and the side surface is 35 to 90 degrees in a plane. The sheet | seat material peeling apparatus of description.
4). A mass sensor that measures the mass of the uppermost sheet material when the uppermost sheet material is lifted, and determines whether the lower sheet material is in close contact with the uppermost sheet material from the result of the mass sensor. And 1. determination means for ejecting the compressed fluid when it is determined to be in close contact. The sheet | seat material peeling apparatus of any one of thru | or 3.
5. The sheet material is rectangular, and includes a reference guide that positions one side of the sheet material at a reference position, and a fixture that supports two sides orthogonal to the side along the reference guide of the sheet material, The magnet floater and the compressed fluid injection nozzle are arranged toward one side parallel to the side along the reference guide of the sheet material. The sheet | seat material peeling apparatus of description.
6). The sheet material is rectangular, and includes a reference guide that positions one side of the sheet material at a reference position, and a fixture that supports one side of the sheet material parallel to the side along the reference guide, and The magnet floater and the compressed fluid injection nozzle are arranged in the reference guide. The sheet | seat material peeling apparatus of description.
7). The sheet material is rectangular, and includes a reference guide that positions one short side of the sheet material at a reference position, and a fixture that supports the other short side of the sheet material, and the magnet floater and The compressed fluid jet nozzle is disposed toward each long side of the sheet material. The sheet | seat material peeling apparatus of description.
8). The magnet floater and the compressed fluid injection nozzle are arranged in the vicinity of the reference guide on each long side of the sheet material. The sheet | seat material peeling apparatus of description.
9. The sheet material is a steel plate. The sheet | seat material peeling apparatus of any one of thru | or 8.
10. When a plurality of laminated sheet materials are adsorbed and lifted, the uppermost sheet material and a plurality of lowermost sheet materials are separated by a magnet floater, and the uppermost sheet being peeled And a spray peeling step of peeling the lower sheet material by spraying a compressed fluid from a compressed fluid jet nozzle onto a side surface of the material and the lower sheet material, wherein the compressed fluid jet nozzle is The sheet material peeling method characterized by arrange | positioning so that the said compressed fluid may be injected above the superposition line of the said side surface of an upper sheet material and the said lower sheet material.
11. Whether the lower sheet material is in close contact with the uppermost sheet material from the measurement process of measuring the mass of the uppermost sheet material with a mass sensor when the uppermost sheet material is lifted, and the measurement results in the measuring process 10. A determination step of determining whether or not, and determining that the spray peeling step is performed when it is determined that they are in close contact with each other. The sheet | seat material peeling method of description.

According to the sheet material peeling device and the sheet material peeling method of the present invention, when lifting a sheet material that is stacked and adhered, the uppermost sheet material and the plurality of lower sheet materials are peeled off by the magnetic action of the magnet floater, Since the lower sheet material is peeled off by spraying compressed fluid from the compressed fluid jet nozzle onto the side surfaces of the uppermost sheet material and lower sheet material being peeled, only the uppermost sheet material can be taken out easily and reliably by enhancing the peeling effect. Can do. In particular, since the compressed fluid is not sprayed on the side surface of the superposition line, but is sprayed above the superposition line, only the uppermost sheet material can be easily and reliably taken out with a higher peeling effect.
This prevents a plurality of sheet materials from being conveyed to the next process in close contact, eliminating the need for conventional manual peeling work, and continuously and reliably supplying one sheet material to the production line. Since they can be supplied one by one, production efficiency can be greatly improved.

Further, when the compressed fluid injection nozzle is arranged so as to eject the compressed fluid within 1.5 mm above the superposition line, the peeling effect can be further enhanced.
Furthermore, when the compressed fluid injection nozzle is arranged so that the injection angle of the compressed fluid is 35 to 90 degrees, the peeling effect can be further enhanced.
Also, a mass sensor that measures the mass of the lifted sheet material, and whether the lower sheet material is in close contact with the uppermost sheet material from the result of the mass sensor, and when it is determined that the lower sheet material is in close contact, the compressed fluid And a determination means for jetting the compressed fluid, it is only necessary to eject the compressed fluid only when the lower sheet material is in close contact with the uppermost sheet material. Therefore, the time for the peeling work can be shortened, and the efficiency of the peeling work can be improved.
Furthermore, in addition to the magnet floater and the compressed fluid injection nozzle, when a reference guide for positioning one side of the sheet material at the reference position and a fixture for supporting the other side of the sheet material are provided, the shape of the sheet material The peeling effect can be enhanced by appropriately setting each position of the magnet floater, the compressed fluid injection nozzle, the reference guide, and the fixture according to the size.
Further, when the sheet material is a steel material, the sheet material is adhered by the applied oil and is heavy, so that the peeling work becomes large, so the peeling work is performed by the sheet material peeling apparatus and the sheet material peeling method. Efficiency can be improved.

The best mode for carrying out the present invention will be described below with reference to the drawings.
In the present embodiment, as shown in FIG. 1, the sheet material peeling apparatus 1 is configured to pick up the uppermost sheet material 2 of the stacked and stocked sheet materials one by one and convey them to the next process. .
The “sheet material” can include metal plates and metal sheets such as steel plates, copper plates and aluminum plates, paper sheets and paper plates, glass plates, and arbitrary plate materials and sheet materials such as resin plates and resin sheets. Among these, it can use suitably with respect to heavy articles, such as a metal plate and a metal sheet. Furthermore, it can be particularly suitably used for steel sheets in which sheet materials are in close contact with the applied oil or the like.

1. Configuration of Sheet Material Peeling Device 1 The sheet material peeling device 1 includes a magnet floater 4 that peels the uppermost sheet material 2 and a plurality of lower sheet materials 3 by a magnetic action, and side surfaces of the uppermost sheet material 2 and the lower sheet material 3. A compressed fluid jet nozzle 5 for spraying compressed fluid onto the lower sheet material 3, a suction pad 6 for adsorbing the uppermost sheet material 2, and an elevating mechanism 7 for lifting the uppermost sheet material 2 adsorbed by the adsorption pad 6. . Furthermore, a nozzle adjustment mechanism 8 that adjusts the height, angle, and distance of the compressed fluid ejection nozzle 5 can be provided.

The magnet floater 4 is an electromagnet, and is excited by energization to separate the uppermost sheet material 2 and a plurality of lower lower sheet materials 3 from the uppermost layer by a magnetic action. One or more magnet floaters 4 are arranged, and the peeling effect can be improved by increasing the number of arrangements.
As shown in FIG. 2, the compressed fluid injection nozzle 5 injects the compressed fluid to a position above the overlapping line G (see FIG. 5) in the side surfaces of the uppermost sheet material 2 and the lower sheet material 3. .
The “overlap line G” is a boundary line generated when the uppermost sheet material 2 and the lower sheet material 3 that is in close contact with the uppermost sheet material 2 are overlapped.
As the “compressed fluid”, any fluid such as compressed air and pressurized oil can be used. Of these, compressed air can be suitably used.

The suction pad 6 is made of rubber and is attached to the tip of the hollow shaft of the lifting mechanism 7. A vacuum generator (not shown) is connected to the hollow shaft of the elevating mechanism 7. Then, when the vacuum generator is activated, air is sucked from the suction pad 6 through the hollow shaft of the lifting mechanism 7 and is sucked to the uppermost sheet material 2 by this suction force. Further, as the main body cylinder of the elevating mechanism 7 is raised, the uppermost sheet material 2 and the closely attached lower sheet material 3 are lifted while the suction pad 6 is adsorbing the uppermost sheet material 2.
The material and structure of the suction pad 6 are not limited to the above, and can be arbitrarily selected.

The lifting mechanism 7 is provided with a mass sensor (not shown) that measures the mass of the suspended sheet material 2. Further, it is determined whether or not the lower sheet material 3 is in close contact with the uppermost sheet material 2 from the result of the mass sensor, and when it is determined that the lower sheet material 3 is in close contact, determination means for ejecting the compressed fluid from the compressed fluid injection nozzle 5 (Not shown) is provided. As the determination means, a computer, a sequence circuit, or the like can be used as appropriate.
Further, the determination method compares the value obtained from the value registered in advance for the mass of the sheet material 2 or the value obtained by calculating from the dimensions of the sheet material 2 with the value obtained from the result of the mass sensor. If it is different, it can be exemplified that the contact is determined to be in close contact. In addition, the value may be different under the condition that the two values are different, or when the difference between the two values is out of a certain range (for example, a predetermined value or a predetermined ratio). Good.
This makes it possible to determine whether or not the lower sheet material 3 is in close contact when the sheet material 2 is lifted, and to inject the compressed fluid only when the sheet material 2 is in close contact. As described above, the reason why the jetting is performed only when the lower sheet material 3 is in close contact is because the sheet materials 2 and 3 can be peeled only by the magnet floater 4. Further, in order to inject the compressed fluid, there may be a need for a time for injecting the compressed fluid and a time for adjusting the time by using the nozzle adjusting mechanism 8 to be described later. This is because it may hang.

The nozzle adjusting mechanism 8 is configured so that the compressed fluid ejecting nozzle 5 has a height of the compressed fluid ejecting nozzle 5 such that the compressed fluid ejecting nozzle 5 ejects the compressed fluid above the overlapping line G in the side surfaces of the uppermost sheet material 2 and the lower sheet material 3. Adjust the angle and distance. Here, as illustrated in FIG. 4, the compressed fluid jet nozzle 5 is spaced from the overlapping line G by a distance A, and as illustrated in FIG. As shown in FIG. 4, the injection angle C composed of two sides of the injection direction of the compressed fluid and the side surface is set to a predetermined value on the plane. The compressed fluid ejected from the compressed fluid ejection nozzle 5 is ejected in parallel with the surface of the sheet material.
The distance A can be arbitrarily set, but is preferably 3 to 45 mm (particularly preferably 5 to 40 mm, more preferably 10 to 30 mm). If the distance A is too short, the sheet material 2 or 3 may come into contact with the sheet material, and if the distance A is too long, the momentum of the compressed fluid may be weakened and peeling performance may not be obtained sufficiently. It is.
The height B can be arbitrarily set to exceed 0 mm, but is preferably within 1.5 mm (particularly preferably within 1.3 mm, more preferably within 1.0 mm). This is because if the height B is too high, the peeling performance may not be sufficiently obtained.
The injection angle C can be set to an arbitrary angle, but is preferably 35 to 90 degrees (particularly preferably 40 to 90 degrees, more preferably 45 to 90 degrees). This is because if the spray angle C is too small, the peeling performance may not be sufficiently obtained.

  Furthermore, in this embodiment, the reference | standard guide 9 which positions one side of the sheet materials 2 and 3 in a reference position, and the fixing tool 10 which supports the other side of the sheet materials 2 and 3 are provided. The number of the fixtures 10 is not limited to one, but it is preferable to increase the number appropriately depending on the shape and size of the sheet materials 2 and 3, and several types of fixtures 10 are prepared from small to large. Is preferred. Then, the positions of the magnet floater 4, the compressed fluid injection nozzle 5, the reference guide 9, and the fixture 10 can be appropriately set according to the shape and size of the sheet materials 2 and 3.

  For example, as shown in FIG. 3A, when the sheet materials 2 and 3 are large squares, the fixture 10 supports two sides orthogonal to the sides along the reference guide 9 of the sheet materials 2 and 3. The magnet floater 4 and the compressed fluid injection nozzle 5 (not shown) are arranged toward one side parallel to the side along the reference guide 9 of the sheet material 2 and 3.

  In addition, as shown in FIG. 3B, when the sheet materials 2 and 3 are oval squares, the fixture 10 supports one side parallel to the side along the reference guide 9 of the sheet materials 2 and 3. The magnet floater 4 and the compressed fluid injection nozzle 5 (not shown) are arranged in the reference guide 9.

  Furthermore, as shown in FIG. 3C, when the sheet materials 2 and 3 are rectangular, the fixture 10 supports the other short sides of the sheet materials 2 and 3, and the magnet floater 4 and the compressed fluid injection nozzle 5 (not shown) is arranged toward the long sides of the sheet materials 2 and 3. In this case, it is desirable that the magnet floater 4 and the compressed fluid injection nozzle 5 are disposed in the vicinity of the reference guide 9 on each long side of the sheet materials 2 and 3.

2. Sheet material peeling method The sheet material peeling method using the sheet material peeling apparatus 1 mentioned above is demonstrated below.
(1) Magnetic field peeling process The lifting mechanism 7 is operated to bring the suction pad 6 into contact with the surface of the uppermost sheet material 2. Next, the vacuum generator is operated to hold the uppermost sheet material 2 by suction, and the elevating mechanism 7 is lifted and lifted to a certain height. At this time, the magnet floater 4 is energized and excited, and the plurality of lower sheet materials 3 that are in close contact due to the magnetic repulsion are peeled off.

(2) Measurement process and determination means During the excitation of the magnet floater 4, a measurement process is performed in which the mass of the uppermost sheet material 2 is measured by the mass sensor of the elevating mechanism 7. Next, it is determined by the determining means whether the lower sheet material 3 is in close contact. When the mass value obtained by the mass sensor is clearly heavier than the uppermost sheet material 2, it is determined that the lower sheet material 3 is in close contact with the uppermost sheet material 2, and the spray peeling process is performed.

(3) Spray separation step In the spray separation step, the compressed fluid is ejected from the compressed fluid ejection nozzle 5 above the superposition line G in the side surfaces of the uppermost sheet material 2 and the lower sheet material 3. By injecting the compressed fluid while the magnet floater 4 is excited, the closely attached lower sheet material 3 can be peeled off, and only the uppermost sheet material 2 can be reliably taken out.

As described above, according to the present embodiment, compressed fluid is sprayed from the compressed fluid injection nozzle 5 above the overlapping line G in the side surfaces of the uppermost sheet material 2 and the lower sheet material 3 that are in close contact with each other. Since the material 3 is peeled off, the peeling effect is enhanced and only the uppermost sheet material 2 can be taken out easily and reliably.
Further, since the compressed fluid only needs to be ejected when the lower sheet material 3 is in close contact with the uppermost sheet material 2 as determined by the determining means, the efficiency of the peeling work can be improved.
Furthermore, since the positions of the magnet floater 4, the compressed fluid injection nozzle 5, the reference guide 9, and the fixture 10 are appropriately set according to the shape and size of the sheet material, the peeling effect can be enhanced.

An experiment was conducted to confirm the peeling effect of the sheet materials 2 and 3 by changing the spraying distance A, the spraying position, and the spray angle C with the size, plate thickness, fluid pressure, and flow rate of the sheet materials 2 and 3 being constant. . The fluid pressure and flow rate were set to the conditions of the conventional sheet material peeling apparatus 1 used in general factories, and compressed air was used as the fluid. In this embodiment, as shown in FIGS. 4 and 5, the nozzle adjustment mechanism 8 can arbitrarily change the compressed fluid ejection angle C to the side surfaces of the superposed sheet materials 2 and 3 of the compressed fluid ejection nozzle 5. It was.
The dimension of the uppermost sheet material 2 used in this example is 300 (W) × 300 (D) × 0.5 (T), and the dimension of the lower sheet material 3 is 475 (W) × 250 (D) ×. 1.6 (T).
Further, the distance A from the polymerization line G to the outlet of the compressed fluid injection nozzle 5 is changed to 10 mm, 30 mm, and 50 mm, and the height B moved upward from the polymerization line G is set to 1.6 mm, 1.0 mm, and 0.5 mm. , 0 mm, -0.5 mm (moving downward), changing the injection angle C to 30, 45, 60, and 90 degrees. When it failed, it experimented as x. The experimental results are shown in Table 1.

As shown in Table 1, the peeling effect was recognized when the spray distance A was 30 mm and 10 mm. Moreover, the height B has a high peeling effect when sprayed from 0 to 1.0 mm above the polymerization line G of the sheet materials 2 and 3, and conversely, a phenomenon in which the peeling effect becomes weak when sprayed below the polymerization line G is confirmed. did. In addition, when the height B is set below 0.5 mm, a phenomenon that the peeling effect is weakened is also observed. Therefore, it is considered that the effect is further improved when the height B is further set higher than 0 mm and the superposition line G.
Further, when the spray distance A was 10 mm, the peeling effect was recognized when the spray angle C was between 45 and 90 degrees. This clearly shows that the flow velocity discharged from the compressed fluid injection nozzle 5 decreases according to the distance, and the closer the distance, the higher the flow velocity increases and the collision energy applied to the sheet materials 2 and 3 increases. This suggests that reliable peeling is possible.
Further, when the spray angle C was 30 degrees, no peeling effect was observed regardless of the spraying distance A and the height B.

  In the present invention, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention according to the purpose and application. That is, in the present embodiment, the mass sensor and the determination unit are provided, and the compressed fluid is ejected only when the lower sheet material 3 is in close contact, but the present invention is not limited thereto, and the mass sensor and the determination unit are not limited thereto. May not be provided. In this case, the peeling equipment can be simplified.

  The present invention can be widely applied to all peeling devices and peeling methods for peeling a laminated sheet material that is in close contact, and is particularly suitable when the uppermost sheet material is peeled off from other sheet materials with high accuracy.

It is a perspective view which shows the sheet | seat material peeling apparatus which concerns on this embodiment. It is a perspective view which shows a compressed fluid injection nozzle. It is a plan view showing the arrangement of a magnet floater and a compressed fluid injection nozzle, a reference guide, and a fixture for various sheet materials. (C) shows the case where the sheet material is rectangular. It is a top view which shows the positional relationship of the closely_contact | adhered sheet | seat material and compressed fluid injection nozzle in a present Example. It is a side view which shows the positional relationship of the sheet | seat material which closely_contact | adhered in a present Example, and the compressed fluid injection nozzle.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1; Sheet material peeling apparatus, 2; Top sheet material, 3; Lower sheet material, 4; Magnet floater, 5; Compressed fluid injection nozzle, 6: Suction pad, 7; Elevating mechanism, 8: Nozzle adjustment mechanism, 9; Reference guide, 10; fixture.

Claims (11)

A lifting mechanism comprising a suction pad for lifting the uppermost sheet material of a plurality of laminated sheet materials;
A magnet floater that peels off the uppermost sheet material suspended by the elevating mechanism and a plurality of lowermost sheet materials;
A compressed fluid ejection nozzle that sprays a compressed fluid on the side surfaces of the uppermost sheet material and the lower sheet material during the peeling to promote peeling of the lower sheet material, and a sheet material peeling device comprising:
The said compressed fluid injection nozzle is arrange | positioned so that the said compressed fluid may be injected above the superposition line of the said side surface of the said uppermost sheet material and the said lower sheet material, The sheet material peeling apparatus characterized by the above-mentioned.   The sheet material peeling apparatus according to claim 1, wherein the compressed fluid ejection nozzle is disposed so as to eject the compressed fluid within 1.5 mm above the superposition line.   The sheet material peeling apparatus according to claim 1, wherein the compressed fluid ejection nozzle is arranged such that an ejection angle formed by two sides of the compressed fluid ejection direction and the side surface is 35 to 90 degrees in a plane.   A mass sensor that measures the mass of the uppermost sheet material when the uppermost sheet material is lifted, and determines whether the lower sheet material is in close contact with the uppermost sheet material from the result of the mass sensor. 4. The sheet material peeling device according to claim 1, further comprising: a determination unit that ejects the compressed fluid when it is determined that the two are in close contact.   The sheet material is rectangular, and includes a reference guide that positions one side of the sheet material at a reference position, and a fixture that supports two sides orthogonal to the side along the reference guide of the sheet material, 5. The sheet material peeling apparatus according to claim 4, wherein the magnet floater and the compressed fluid injection nozzle are arranged toward one side parallel to the side along the reference guide of the sheet material.   The sheet material is rectangular, and includes a reference guide that positions one side of the sheet material at a reference position, and a fixture that supports one side of the sheet material parallel to the side along the reference guide, and The sheet material peeling apparatus according to claim 4, wherein the magnet floater and the compressed fluid injection nozzle are arranged in the reference guide.   The sheet material is rectangular, and includes a reference guide that positions one short side of the sheet material at a reference position, and a fixture that supports the other short side of the sheet material, and the magnet floater and The sheet material peeling apparatus according to claim 4, wherein the compressed fluid injection nozzle is disposed toward each long side of the sheet material.   The sheet material peeling apparatus according to claim 7, wherein the magnet floater and the compressed fluid injection nozzle are disposed in the vicinity of the reference guide on each long side of the sheet material.   The sheet material peeling apparatus according to any one of claims 1 to 8, wherein the sheet material is a steel plate. A magnetic separation process of separating the uppermost sheet material and the lowermost sheet material by a magnet floater when adsorbing and lifting a plurality of laminated sheet materials;
A blowing and peeling step of peeling the lower sheet material by blowing a compressed fluid from a compressed fluid jet nozzle to the side surfaces of the uppermost sheet material and the lower sheet material during the peeling, and a sheet material peeling method comprising:
The sheet material peeling method, wherein the compressed fluid injection nozzle is disposed so as to inject the compressed fluid above a polymerization line on the side surface of the uppermost sheet material and the lower sheet material.   Whether the lower sheet material is in close contact with the uppermost sheet material from the measurement process of measuring the mass of the uppermost sheet material with a mass sensor when the uppermost sheet material is lifted, and the measurement result in the measuring process The sheet | seat material peeling method of Claim 10 further equipped with the determination process which determines whether or not and implements the said spray peeling process when it determines with adhering.

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