JP2580052Y2 - Metal film stripper for metallized plastic films - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing a metal film from a metallized plastic film. A metallized plastic film for a capacitor is formed by depositing a metal film such as aluminum on one surface of an ultra-thin plastic film. Such a metallized plastic film is shown at the beginning of winding and in FIG. As described above, the metal film is peeled off by a predetermined length at a predetermined interval depending on the capacity and the withstand voltage condition (in the figure, 01 is a metallized plastic film, and 02 is a stripped portion of the metal film).

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional metal film peeling apparatus supplies power between a work-in shaft 1 of a metallized plastic film material and a winding shaft 2 of a capacitor to a metal film side of a metallized plastic film 3. Rollers 4 and 5 are provided, and winding shafts 7 and 9 for winding aluminum foil through feeding rollers 4 and 5, respectively, and aluminum foil supply shaft 6
And 8, the power supply roller 4 is connected to a cathode (or an anode), and the power supply roller 5 is connected to an anode (a cathode).

[0003] The feeding rollers 4 and 5 are connected to the work shaft 1.
Plastic film 3 running from the machine to the winding shaft 2
When the cathode voltage (or anode voltage) and the anode voltage (or cathode voltage) are applied to the feed rollers 4 and 5 respectively, the metal film liquefies due to the current load on the metal film only during the application, and the temperature increases. As a result, a destruction phenomenon occurs on the deposition surface of the plastic film and the metal film, and the metal film peels off. The peeled metal film is transferred to an aluminum foil on the power supply roller 5 of the attached device, and is wound by the winding shaft 9.

In the prior art, since the metal film peeling device is provided with the auxiliary device, the metal film peeling device is inevitably increased in size, and the peeled metal film is transferred and wound around the winding shaft 9. The aluminum foil and the aluminum foil wound on the winding shaft 7 through the power supply roller 4 have no other choice but to be discarded, and the cost of the winding process is a great burden. Furthermore, as shown in FIG. 3, there is a problem that the residue of the peeled metal film is deposited on the contact point between the feeding roller and the plastic film.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems and to remove the metal film of a metallized plastic film which is a convection and prevents the diffusion of the residue of the peeled metal film. It is to provide a device.

[0006]

Means for Solving the Problems The inventor of the present invention has made intensive studies to achieve this object, and as a result, a pair of anode and cathode voltages for supplying an anode voltage and a cathode voltage in contact with a metal film of a metallized plastic film running by a winder. The metal film is peeled off by the tapered electrode, the residue of the peeled metal film adhered to the electrode is polished and removed, and the dust of the removed peeled metal film is supposed to be removed by suction. Has come up with a device for stripping metal films of plasticized plastic films.

The metal film peeling device of the metallized plastic film of the present invention comprises a tapered anode and a tapered cathode opposed to each other at a small interval of about several mm, and is provided at intervals of α degrees around a central axis. 360 / α peeling means (α is 10, 20, 30, 40, 6
0, 90, or 180) up and down movable pressing means comprising a pressing roller for pressing down a metallized plastic film held between two holding rollers to make contact with the anode and the cathode, the tapered anode, and Polishing means for removing the residue of the peeled metal film adhered to the cathode, and containing the peeling means and the polishing means, the tapered anode and the cathode can be brought into contact with the metallized plastic film by pressing down the pressing means. The housing is provided with an opening at the top and a dust suction port at the bottom.

Next, a specific example (α = 90) of the metal film peeling apparatus for a metallized plastic film of the present invention will be described.
This will be described with reference to FIG. A metallized plastic film 12 supplied from a film material loading shaft 11 (not shown) is pressed down between holding rollers 13 and 14 by holding means 17 consisting of holding rollers 15 and 16, and a voltage is reduced. Applied tapered anode (or cathode) 18 and tapered cathode (or anode) 1
The metal film is peeled off by contacting the peeling means 20 composed of the roll 9 and is wound on a winding shaft 21 (not shown). As shown in FIG. 5, four peeling means 20 are installed at intervals of 90 degrees around the central axis 22.
The residue of the exfoliated metal film is removed by the rotating polishing brush 23 at the position rotated by 180 degrees and the rotation by 180 degrees.

Thus, the metal film is peeled off in contact with the newly polished tapered anode (or cathode) 18 and tapered cathode (or anode) 19 at each peeling step.
The four peeling means 20 and the rotary polishing brush 23 provided around the central axis 22 are opened at the top so that the tapered electrodes 18 and 19 can come into contact with the metallized plastic film 12 by pressing down the pressing means 17, It is installed in a housing 25 provided with a dust suction port 24 at the bottom. Thus, the residue of the dusted exfoliated metal film is sucked and discharged from the inside of the housing, and is prevented from diffusing to the outside.

[0010]

[Effect] Since the peeling device of the present invention uses a tapered electrode, the diameter of the roller becomes the limit of the peeling width when the power supply roller is used. The width can be made sufficiently narrow,
The residue of the peeled metal film falls through the gap between the electrodes without being deposited on the contact point between the roller and the plastic film as in the case of the power supply roller, and is sucked and discharged from the lower dust suction port.

[Brief description of the drawings]

FIG. 1 is a view showing a mode of peeling a metal film of a metallized plastic film.

FIG. 2 is an explanatory view of a conventional metal film peeling apparatus for a metallized plastic film.

FIG. 3 is a diagram showing a state of deposition of a peeled metal film residue at a contact point between a power supply roller and a plastic film in a conventional peeling device.

FIG. 4 is an explanatory view of a metal film peeling device for a metallized plastic film of the present invention.

FIG. 5 is a schematic view of a peeling means in the peeling device of one specific example of the present invention.

[Explanation of symbols]

 01 Metal plastic film 02 Metal film peeled part 03 Metal plastic film 04 Power supply roller 05 Power supply roller 06 Deposition of peeled metal film residue 1 Work-in-process shaft of metallized plastic film material 2 Condenser winding shaft 3 Metallized plastic film 4 Power supply roller 5 Power supply roller 6 Aluminum foil supply axis 7 Winding axis for winding aluminum foil 8 Aluminum foil supply axis 9 Winding axis for winding aluminum foil 11 Work-in-process axis of metallized plastic film material 12 Metallized plastic film 13 Holding roller 14 Holding roller 15 Pressing roller 16 Pressing roller 17 Pressing means 18 Tapered anode (or cathode) 19 Tapered cathode (or anode) 20 Stripping means 21 Winding shaft 22 Central shaft 23 Rotating polishing brush 24 Dust引口 25 housing

Claims (2)

(57) [Scope of request for utility model registration] 1. A 360 / α peeling means comprising a tapered anode and a tapered cathode opposed to each other at a narrow interval of about several mm, provided at intervals of α degrees around a central axis, and rotated by α degrees in each step. Here, α is 10, 20, 30, 40, 60,
90 or 180) an up-and-down movable pressing means comprising a pressing roller for pressing down a metallized plastic film held between two holding rollers and bringing the film into contact with the anode and the cathode; Polishing means for removing the residue of the adhered peeled metal film, and an opening at the top so that the peeling means and the polishing means can be housed and the anode and the cathode can be brought into contact with the metallized plastic film by pressing down the pressing means. A metal film stripping device for a metallized plastic film, comprising a housing having a section and a dust suction port at the bottom. 2. The metal film peeling apparatus for a metallized plastic film according to claim 1, wherein α = 90.