JPH0329124Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an apparatus for peeling a thin film continuously formed on a flexible belt-shaped sheet from the belt-shaped sheet.

BACKGROUND TECHNOLOGY In order to continuously obtain a thin film of ceramic or the like having a predetermined size, a long thin film is formed on a flexible strip-shaped sheet by means such as a doctor blade method, and the thin film is cut into a predetermined size on the sheet to form a strip. Peeling a thin film from a sheet is performed.

As shown in FIG. 1, an apparatus for peeling a thin film from this flexible sheet has a front end 3a of a moving path 3 that supports a belt-shaped sheet 2 having a thin film 1 formed on its upper surface, whose side cross-sectional shape is formed at an acute angle. An apparatus is known in which a support surface 4 is disposed in front of the front end 3a and flush with the movement path 3, and the thin film 1 is peeled from the sheet 2 by bending the belt-shaped sheet 2 downward at the front end 3a. Note that 5 is a winding drum that winds up the sheet 2 from which the thin film 1 has been peeled off, 6 is a cutting device that is disposed above the middle of the moving path 3 and cuts the thin film 1 at predetermined intervals, and 7 is a cutting device that moves up and down on the support surface 4. , shows a suction device for vacuum suctioning and taking out a thin film 1' cut to a predetermined size.

This device utilizes the fact that the thin film 1 is peeled off at the acute angle part of the front end 3a of the moving path without following the sudden direction change of the sheet 2, and is pushed out onto the support surface 4 and separated. If there is any foreign matter on the top, it will adhere to the thin film 1' and contaminate it, so the supporting surface 4 must be kept clean at all times, and the movement of the thin film 1' on the supporting surface 4 is due to extrusion. , there was a risk that wrinkles would form easily and the adsorption would become unstable. Furthermore, since tension is applied directly to the cut portion during peeling, the sheet extends from the cut portion, resulting in variations in cutting intervals and unstable dimensional accuracy.

Purpose of disclosure of the invention This invention was proposed in view of the above problems.
To provide a peeling device capable of smoothly peeling off a thin film laminated on a belt-shaped sheet.

Structure The present invention consists of a supply roller around which a flexible strip-shaped sheet with a thin film formed on one surface is wound, and a winder that winds the strip-shaped sheet with the outer circumferential surface of the roller arranged parallel to the outer circumferential surface of the supply roller. A roller, a movable body that is inserted between the supply roller and the take-up roller from the side on which the thin film of the belt-shaped sheet is not formed and reciprocates over a certain distance, and a suction device that is placed above the movement path of the movable body and that sucks the thin film. With the forward motion of the movable body, the strip-shaped sheet is fed out from the supply roller in synchronization with the movable body, the thin film on the movable body is adsorbed by the suction device, and the movable body is moved backward, and the strip-shaped sheet is sent to the take-up roller. The thin film is peeled off from the belt-shaped sheet at the front end of the movable body by winding it up at the front end of the movable body.

Example The following is a second example of the peeling device according to the present invention.
This will be explained with reference to FIG. In the figure, reference numeral 8 denotes a flexible belt-shaped sheet with a thin film 9 formed on one surface, which is wound around a supply roller 10 . The supply roller 10 is braked so as not to rotate unless a force exceeding a predetermined tension is applied to the belt-shaped sheet 8, and the rotating shaft 10a is arranged substantially horizontally. 11 is below the supply roller 10 and the outer peripheral surface 11b is the supply roller 1
The winding roller has a shaft 11a arranged parallel to the shaft 10a of the supply roller 10 at a position facing the outer circumferential surface 10b of the roller 10, and is slidably connected to a rotational drive source (not shown) and approximately balances the braking force of the supply roller 10. rotational force is given. 12 has a front end 12a formed with an acute side cross-sectional shape, and is inserted between the rollers 10 and 11 by bringing the front end 12a into contact with the surface of the belt-shaped sheet 8 on which the thin film 9 is not formed. It is a movable plate that reciprocates over a certain distance in the moving direction, and the upper surface of the movable body 12 and the belt-shaped sheet 8 fed out from the supply roller 10 are kept parallel at least within the movement range of the tip end 12a. 13 is a cutting device that moves up and down above the middle portion of the movable plate 12 to cut the thin film 9 on the strip-shaped sheet 8; 14 is a front end portion 12a of the movable plate 12;
This shows a suction device that has a suction surface in the moving range and can move up and down.

The operation of this device will be explained below with reference to FIGS. 4 to 8. First, as shown in FIG. 4, the movable plate 12 is moved backward, and the front end portion 12a is positioned slightly forward of the lower side of the cutting blade 13a of the cutting device 13. When the movable plate 12 moves backward, the belt-like sheet between the front end 12a and the take-up roller 11 becomes slack, so the load on the take-up roller 11 is reduced. It is wound up. Further, at this time, the apparent tension applied to the belt-shaped sheet 8 decreases, and the supply roller 10 remains stationary. Next, when the cutting of the thin film 9 is completed,
As shown in FIG. 5, the movable plate 12 is moved back to position the front end 12a at the notch. Then, move the movable plate 12 forward as shown in FIG.
After advancing a predetermined distance from 3, the thin film 9 is temporarily stopped, and the cutting device 13 cuts the thin film 9 to a predetermined length. When the movable plate 12 moves forward, the seventh
As shown in the figure, the cut portion 8a of the belt-shaped sheet 8
is caught on the front end 12a of the movable plate 12, so the strip sheet 8 is fed out from the supply roller 10, and a force greater than the rotational force is applied to the strip sheet 8 against the take-up roller 11. , the strip-shaped sheet 8 is also fed out from the take-up roller 11. After cutting the thin film 9 to a predetermined length, the movable plate 12 is further advanced to position the thin film 9 cut to a predetermined size below the suction device 14 . Then, the suction device 14 is lowered to adsorb the thin film 9, and the movable plate 12 is moved backward. Then, as shown in FIG. 8, the thin film 9 is peeled off from the belt-shaped sheet 8 while being adsorbed. The movable body 12 moves backward until it reaches the cut position in the thin film 9, and stops at this position. The thin film 9' peeled off from the belt-shaped sheet 8 in this manner can be sent to a desired position by the suction device 14. Thereafter, the operations explained in FIGS. 5 to 8 are repeated, and a thin film 9' of a predetermined size can be continuously obtained.

By setting the positions of the suction device 14 and the cutting device 13 appropriately, the thin film 9 can be cut by the suction device 14 without having to temporarily stop the movable body 12 in the middle of its forward movement in order to cut the thin film 9. The thin film 9 can be cut when the movable body 12 stops for cutting, thereby allowing high-speed operation.

Furthermore, the movable body 12 is not limited to a plate shape, and may have a frame structure as shown in FIG. 9 or a structure in which a protrusion 12a is provided at the front end of a flat plate as shown in FIG. By using this, it is possible to eliminate the possibility that excessive force is applied to the thin film 9 from the movable body 12 via the band-shaped sheet 8 when peeling the thin film 9.

Effects of the invention As described above, according to the invention, since the thin film 9 is peeled off while being held by the adsorption device 14, there is no risk of foreign matter adhering to it, and the thin film 9 is peeled off on the stretched belt-shaped sheet 8. 9 is held by suction, suction is performed reliably, and problems such as wrinkles and deformation are also eliminated. Furthermore, the belt-shaped sheet 8 is fed out with the movable body 12 caught in the cut portion,
Since the movable body 12 moves and peels off, the tension applied to the cut portion is small, and elongation at the cut portion can be suppressed, allowing accurate cutting intervals.

[Brief explanation of drawings]

FIG. 1 is a side view showing an example of a peeling device, FIG. 2 is a side view showing an example of a peeling device according to the present invention, FIG. 3 is a side view taken along line A-A in FIG. 2, and FIGS. 4 to 8 are FIG. 2 is a side view of a main part explaining the operation of the device, and FIGS. 9 and 10 are partial perspective views showing modifications of the movable body. 8... Band-shaped sheet, 9... Thin film, 10... Supply roller, 11... Take-up roller, 12... Movable body.

Claims (1)

[Scope of utility model registration request] A supply roller that winds a flexible belt-shaped sheet with a thin film formed on one surface, a take-up roller that winds up the belt-shaped sheet and is arranged parallel to the outer peripheral surface of the supply roller at a position opposite to the outer peripheral surface of the supply roller, and a supply roller. and a movable body that is inserted between the take-up roller from the side on which the thin film of the belt-shaped sheet is not formed and reciprocates over a certain distance;
It includes a suction device that is placed above the moving path of the movable body and sucks the thin film, and by the forward movement of the movable body, a strip sheet is fed out from the supply roller in synchronization with the movable body, and the thin film on the movable body is sucked by the suction device. A thin film peeling device characterized in that the thin film is peeled from the belt-shaped sheet at the front end of the movable body by moving the movable body backward and winding up the belt-shaped sheet with a take-up roller.