JPH0817691A - Removal of metal film of metallized film and device - Google Patents

Abstract

PURPOSE:T<5 make it possible to remove metal powder adhering the surfaces of rotating electrodes by a method wherein only when the part of a metal film to be removed comes into contact to the rotating electrodes, a voltage is applied between the electrodes to remove the metal film of a metallized paper or a metallized film and the rotating electrodes are cleaned and are kept clean. CONSTITUTION:Rotating electrodes 21 provided in parallel to each other are rotated in a direction C and while a metallized paper or a metallized film 24 is brought into contact to the surfaces of the electrodes 21, the film 24 is made to travel in a direction D. Only when the part of an unnecessary metal of the film 24 comes into contact to the surfaces of the electrodes 21, a voltage is applied between the two electrodes 21 to peel the unnecessary metal film. Edge parts 22a of metal powder removal blades 22 are provided toward the direction to oppose to the direction of rotation of the electrodes 21 and are pressed on the surfaces of the electrodes 21 by springs 38. Metal power adhering the surfaces of the electrodes 21 is scratched off by the edge parts 22a with the rotation of the electrodes 21 and is removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal film removing apparatus for metallized films, and more particularly, to remove fine particles of a metal film peeled from a metallized film and attached to a rotary electrode by rotating the rotary electrode. The removal of the metal film can be performed continuously to improve the work efficiency significantly, and the metal film can be completely removed by always performing the removal work of the metal film with the clean rotating electrode on which the fine particles of the metal film are not attached. The present invention relates to a metal film removing device for a metalized film capable of maintaining the electrical characteristics of a metalized paper capacitor or a metalized film capacitor at high performance.

[0002]

2. Description of the Related Art In the manufacture of a metallized paper capacitor or a metallized film capacitor, as shown in FIG. 9, two metallized papers or metallized films 1 are rolled up to form a capacitor element. However, at this time, the metal film 1 deposited on the two metallized papers or metallized films 1
By removing a at the winding start portion 1b and winding it up, and as shown in FIG. 10 by removing it at the winding end portion 1c and winding it up, it is possible to prevent short-circuiting of the capacitor element and reduction of insulation resistance. .

Further, in FIG. 11, the metal film 1a of the intermediate portion 1d of the metallized paper or the metallized film 1 is removed and wound up to separately insulate the capacitor capacitance.

The removal of the metal film 1a deposited on the metallized paper or the metallized film 1 is conventionally carried out by removing the anode electrode 2 and the cathode electrode over the entire width of the metallized paper or the metallized film 1 in FIGS. 3, the metallized paper or metallized film 1 on which the metal film 1a is vapor-deposited is run in the direction of arrow A while contacting the anode electrode 2 and the cathode electrode 3, and the metal film 1a is removed at a portion where the metal film 1a is removed. A voltage of about 20 to 50 V is applied between the anode electrode 2 and the cathode electrode 3 to remove the metal film 1a.

A part of the removed metal film 1a adheres to the anode electrode 2 and the cathode electrode 3, especially to the cathode electrode 3 as fine particles of the metal film 1a. If a large amount of this adheres, the anode electrode 2 and the cathode electrode 3 The removal action of the metal film 1a due to is incomplete and remains as streaky marks on the metallized paper or the metallized film 1, resulting in large variations in the capacitance of the capacitor element and insufficient insulation. was there.

Therefore, the scraper 5 formed in the same shape as the electrode surfaces 2a, 3a of the anode electrode 2 and the cathode electrode 3 is provided with the spring 4.
Elastically pressed against the anode electrode 2 and the cathode electrode 3 to guide the anode electrode 2 and the cathode electrode 3 to the support guide 6 when the fine particles of the metal film 1a adhere to the anode electrode 2 and the cathode electrode 3 to some extent. While moving in the direction of arrow B, the electrode surfaces 2 of the anode electrode 2 and the cathode electrode 3 are moved.
A and 3a are rubbed with a scraper 5 to scrape off the adhered fine particles of the metal film 1a.

In the above-described conventional metal film removing apparatus, every time the fine particles of the metal film 1a adhere to the anode electrode 2 and the cathode electrode 3, the anode electrode 2 and the cathode electrode 3 are moved laterally to remove the metal film 1a. It is necessary to scrape the fine particles, but the work cannot be performed unless the metal film removal work is stopped by stopping the traveling of the metallized paper or the metallized film 1, and the work efficiency is poor. there were.

As another conventional removing device, FIG.
In the above, the metallized paper or the metallized film 1 is guided from the delivery bobbin 8 to the take-up bobbin 9 by the guide roller 10 so that the metallized paper or the metallized film 1 is provided with a rotating electrode 11 so that the metallized paper or the metallized film 1 is constantly contacted. A metal foil electrode 12 formed of a metal foil is arranged at a predetermined distance from the rotating electrode 11, and a voltage is applied between the rotating electrode 11 and the metal foil electrode 12 to apply the metallized paper or the metallized film 1. It is proposed to remove the vapor-deposited metal film 1a.

However, this type of removing device is provided with the metal foil electrode 1
The metal foil 13 is sent out from the bobbin 14 as 2 and is removed while being wound on the winding bobbin 15. Since a large amount of expensive metal foil 13 is used as a consumable item, it is uneconomical. However, there is a drawback that the cost of the metallized paper capacitor or the metallized film capacitor is high.

In addition, a space for arranging the feeding bobbin 14 and the winding bobbin 15 for feeding out the metal foil 13 and for winding the metal foil 13 must be provided.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned drawbacks of the prior art, and its purpose is to bring it into contact with a running metallized paper or metallized film. Arrange the rotating electrode to which voltage is applied,
By elastically pressing the metal powder removing blade on the surface of the rotating electrode, the metal powder adhering to the rotating electrode can be removed by the metal powder removing blade. That is, the metal powder of the metal film attached to the rotary electrode can be continuously removed without stopping the work.

Still another object is to dispose a rotating electrode to which a voltage is applied in contact with a running metallized paper or metallized film, and the edge portion of the metal powder removing blade is provided over the entire surface of the rotating electrode. By elastically pressing, it is possible to continuously remove the metal powder adhering to the rotating electrode, and by doing so, it is possible to always use a clean rotating electrode so that the metallized paper or metallized film (EN) It is possible to completely remove a metal film, and to manufacture a high-performance metalized paper capacitor or metalized film capacitor excellent in electrical characteristics with less variation.

Still another object is to make the metalized paper capacitor or the metallized film capacitor economically by eliminating the consumable item as the electrode by the above-mentioned structure, and to reduce the size of the metal film removing device to be inexpensive. Is to be able to manufacture.

Still another object is to dispose a rotating electrode to which a voltage is applied in contact with a running metallized paper or metallized film, and the edge portion of the metal powder removing blade is provided over the entire surface of the rotating electrode. By disposing a barb that is elastically pressed and pressed by the rotating electrode so as to be movable in the axial direction, the rotating electrode continuously removes the metal film of the metalized paper or the metalized film. It is possible to remove the metal powder adhering to the rotating electrode, and periodically move the scrapers along the rotating electrode when the metal film removal work is stopped, etc. The purpose is to be able to remove the metal powder of the film.

[0015]

SUMMARY OF THE INVENTION In summary, the method of the present invention (Claim 1) comprises metallized paper or metal on a rotatable rotary electrode which is electrically connected to a power supply and configured to apply a voltage. Of the metallized paper or the metallized film by applying a voltage to the rotary electrode only when the portion where the metal film is to be removed is in contact with the rotary electrode. Remove by attaching to the rotating electrode,
The method is characterized in that the rotating electrode is constantly cleaned and kept clean during its rotation.

The device of the present invention (Claim 2) is arranged so as to be in contact with a running metallized paper or metallized film, is electrically connected to a power supply device, and is configured to be applied with a voltage. It is characterized by comprising a rotatable electrode and a metal powder removing blade that elastically presses the surface of the rotating electrode over the entire length in the axial direction to remove the metal powder adhering to the rotating electrode.

Further, the device of the present invention (claim 3) is arranged in contact with the running metallized paper or metallized film, is electrically connected to the power supply device, and is configured to be applied with a voltage. The rotatable rotating electrode and the edge portion formed in an acute angle face the rotating direction of the rotating electrode, and are elastically pressed and contact the surface of the rotating electrode over the entire length of the rotating electrode to contact the rotating electrode. A metal powder removing blade for removing the adhered metal powder is provided.

Further, the device of the present invention (claim 4) is arranged in contact with the running metallized paper or metallized film and is electrically connected to the power supply device so that a voltage is applied. The rotatable rotating electrode and the edge portion formed in an acute angle face the rotating direction of the rotating electrode, and are elastically pressed and contact the surface of the rotating electrode over the entire length of the rotating electrode to contact the rotating electrode. A metal powder removing blade for removing the adhered metal powder, and a scraper elastically pressed by the rotary electrode and slidable in the axial direction of the rotary electrode.

[0019]

The metal film removing device for metallized film of the present invention is
Peeling the metal film deposited on the metallized paper or metalized film by applying a voltage It is configured to elastically press the metal powder removing blade over the entire length of the surface of the rotating electrode. The metal powder adhering to the rotating electrode can be continuously removed while performing, and the rotating electrode can be maintained in a clean state at all times, so that the metal film of the metallized paper or metallized film can be completely peeled off. It is possible to manufacture a high-performance metallized paper capacitor or metallized film capacitor having excellent electrical characteristics with less variation by using the metallized paper or metallized film from which the metal film of 1 is completely peeled off.

Further, the metal powder adhering to the rotating electrode can be removed without interrupting the peeling work of the metal film, so that the working efficiency is greatly improved, and a consumable item is not required as an electrode as in the conventional case, which is economical. It is possible to manufacture metallized paper capacitors or metallized film capacitors.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. 1 to 5, a metal film removing device 20 for a metallized film according to the present invention includes a rotating electrode 21, a metal powder removing blade 22, and a scraper 23.

A first embodiment of the present invention will be described with reference to FIGS. 1 to 3. The rotating electrode 21 is for peeling off the metal film 24a (FIG. 7) deposited on the metallized paper or the metallized film 24, and the base 2 made of an insulating material.
Support plates 26, which are also made of an insulating material, are fixed to both ends of the member 5 in a U-shape to form a base.

A bearing 28 is arranged on each of the support plates 26, and two rotating electrodes 21 are rotatably arranged on the bearing 28 by fitting the small diameter portions 21a formed at both ends thereof. It is set up.

In FIG. 3, the small diameter portion 21a on the left side is
A pulley (not shown) is fixed to rotate the rotary electrode 21, and the end portion 2 of the right small-diameter portion 21a is formed.
1b includes a contactor 29 made of a conductive material such as carbon.
Are provided by being pressed by the leaf springs 31 fixed to the support plate 26 by the screws 30, respectively, and the respective contactors 29 are provided.
The power supply device 32 and the switch 33 are electrically connected in series by an electric wire 34, and a voltage of 20 to 50 V is applied to the two rotary electrodes 21 via the contact 29.

Then, the rotating electrodes 21 arranged in parallel are rotated in the direction of arrow C, and the surface of the rotating electrode 21 is moved in the direction of arrow D while contacting the metallized paper or metallized film 24 with the metal film 24a. The switch 33 is closed to connect the power supply device 32 to the two rotating electrodes 21 to 20 to 5 only when the unnecessary portion (FIG. 7) is in contact with the rotating electrode 21.
A voltage of 0V is applied to peel off the unnecessary metal film 24a.

As shown in FIG. 7, the metal powder removing blade 22 is for removing the metal powder 24b that has been peeled off from the metallized paper or metallized film 24 and adhered to the rotary electrode 21, and has an acute angle. Is formed as a plate-shaped member having the same length as that of the rotary electrode 21, and is held by the holding plates 35 and 36.

The edge portion 22a of the metal powder removing blade 22 horizontally held by the holding plates 35 and 36 is arranged in a direction opposite to the rotating direction of the rotating electrode 21 (direction of arrow C), and the rotating electrode 21 Is elastically pressed against the surface of the.

The metal powder 24b attached to the surface of the rotary electrode 21 as the rotary electrode 21 rotates is removed from the edge portion 2
2a is configured to be scraped off and removed.

Next, a second embodiment of the present invention shown in FIG. 4 will be described. In the same manner as described in the first embodiment, the base 25 and the support plate 26 made of an insulating material are formed in a U-shape. Two rotating electrodes 21 are rotatably arranged in parallel and supported by bearings 28 arranged on the supporting plate 26.

At the ends (not shown) of the rotary electrode 21, contacts (not shown) made of a conductive material such as carbon are pressed by leaf springs (not shown), and the respective contacts are made. A power supply device (not shown) and a switch (not shown) are electrically connected in series to each other, and a voltage of 20 to 50 V is applied to the two rotary electrodes 21 via contacts. Has been done.

In this embodiment, one rotating electrode 2
Unlike the first embodiment in that two metal powder removing blades 22 are provided for one, the metal powder removing blade 22 is held horizontally and vertically by holding plates 40, 41 and 42, respectively. ing.

Edge portion 22a of the metal powder removing blade 22
Are arranged so as to face the rotation direction of the rotating electrode 21 (direction of arrow C), and the spring 38 is provided on the surface of the rotating electrode 21.
The edge portion 22a of the metal powder removing blade 22 which is elastically pressed by the vertical electrode is
Edge portion 22a of the metal powder removing blade 22 disposed horizontally on the lower surface of the rotary electrode 21 contacts the surface of the lower surface of the rotary electrode 21 and adheres to the surface of the rotary electrode 21 as the rotary electrode 21 rotates. The edge portion 22a of the metal powder removing blade 22 that is vertically disposed
The metallized paper or metallized film 2 which cannot be removed by the metal powder removing blade 22 arranged vertically,
The metal powder 24b remaining attached to No. 4 is scraped off by the edge portion 22a of the metal powder removing blade 22 arranged horizontally to be completely removed.

Next, a third embodiment of the present invention shown in FIG. 5 will be described. Just as described in the first embodiment, the base 25 and the support plate 26 made of an insulating material are formed in a U-shape. Two rotating electrodes 21 are rotatably arranged in parallel by being supported by bearings 28 arranged on the supporting plate 26.

At the ends (not shown) of the rotary electrode 21, contacts (not shown) made of a conductive material such as carbon are pressed by leaf springs (not shown), and the respective contacts are made. A power supply device (not shown) and a switch (not shown) are electrically connected in series to each other, and a voltage of 20 to 50 V is applied to the two rotary electrodes 21 via contacts. Has been done.

The metal powder removing blades 22 are horizontally held by holding plates (not shown) in exactly the same manner as described in the first embodiment, and the edge portion 22a of the metal powder removing blade 22 has the rotating electrode 21. Is arranged in a direction opposite to the rotation direction (arrow C direction) of FIG. 1 and is elastically pressed against the surface of the rotary electrode 21 by a spring (not shown).

This embodiment is different from the previous two embodiments in that a scraper 23 is provided, and a support guide 43 is provided in parallel with the rotary electrode 21, and the support guide 43 is provided with the rotary electrode 21. A movable base 44 having arms extending upward is slidably mounted.

The movable table 44 is provided with a scraper 23 whose tip 23a is formed in an arc shape corresponding to the shape of the rotary electrode 21. The arc-shaped tip 23a is elastically attached to the rotary electrode 21 by a spring 45. Is being pressed.

By moving the movable base 44 in the direction of arrow E while guiding it by the support guide 43, the surface of the rotary electrode 21 is rubbed by the arcuate tip 23a of the scraper 23, and the metal attached to the rotary electrode 21 is rubbed. The powder 24b is scraped off.

In the method of the present invention, the metallized paper or metallized film 24 is attached to the rotatable rotary electrode 21 which is electrically connected to the power supply device 32 and is configured to be applied with a voltage.
Of the metallized paper or the metallized film 24 by applying a voltage to the rotating electrode 21 only when the portion where the metal film 24a is to be removed is in contact with the rotating electrode 21.
The metal film 24a is attached to the rotary electrode 21 and removed,
This is a method of keeping the rotary electrode 21 clean by constantly cleaning it during its rotation.

The present invention is configured as described above,
The operation will be described below. 3, 6 and 7, the metallized paper or metallized film 24 is rotated in the direction of arrow C while the metallized paper or metallized film 24 is in contact with the two rotary electrodes 21. Run in the direction of arrow D.

The portion where the metal film 24a deposited on the metallized paper or metallized film 24 is to be peeled off is the rotary electrode 2.
When it is in contact with 1, the switch 33 is closed to apply a voltage of 20 to 50 V from the power supply device 32 to the two rotary electrodes 21.

That is, when the switch 33 is closed, the two rotary electrodes 21 are electrically connected by the electric wire 34,
Electricity of the power supply device 32 is supplied to the two rotary electrodes 21 via the contact 29, and a voltage of 20 to 50 V is applied between the two rotary electrodes 21.

Then, an electric current flows through the metal film 24a of the metallized paper or the metallized film 24 which is in contact with the two rotating electrodes 21, and the metallized paper or the metal film 2 of the metallized film 24 is supplied.
4a is peeled off and the rotating electrode 21 is formed, especially the rotating electrode 2 on the cathode side.
The non-metallized portion 24c is formed on the metallized paper or metallized film 24 by adhering to 1.

In FIG. 7, the metal powder 24b adhering to the rotary electrode 21 advances in the direction of arrow C as the rotary electrode 21 rotates, and the metal powder removing blade 22 of the metal powder removing blade 22 elastically pressed against the surface of the rotary electrode 21. It is scraped off and removed by the edge portion 22a, and sucked and collected by a suction device (not shown).

Since the edge portion 22a is provided so as to oppose the rotation direction of the rotary electrode 21 (direction of arrow C), the metal powder 24b adhering to the rotary electrode 21 can be easily scraped and removed. Can also be used, metal powder removal blade 2
Since the second edge portion 22a is provided over the entire length of the rotating electrode 21, the entire length of the rotating electrode 21 can be processed efficiently at the same time.

In FIG. 4, a metal film removing apparatus 20 for metallized film in which two metal powder removing blades 22 are arranged vertically and horizontally with respect to one rotating electrode 21 is a metallized paper or a metallized film. The metal powder 24b peeled off from 24 and attached to the rotary electrode 21 is scraped off by the edge portion 22a of the metal powder removing blade 22 which is vertically arranged with the rotation of the rotary electrode 21, and then, vertically. The metal powder 24 that cannot be removed by the provided metal powder removal blade 22
Since b is scraped off by the edge portion 22a of the horizontally disposed metal powder removing blade 22, it is continuously and completely removed.

In FIG. 5, the third embodiment of the present invention is the same as that described in the first embodiment with the metallized paper or the metallized film 24 in contact with the two rotary electrodes 21. While rotating the rotary electrode 21 in the direction of arrow C, the metallized paper or metallized film 24 is made to run in the direction of arrow D, and when the portion where the metal film 24a is to be peeled is in contact with the rotary electrode 21, the switch 33 is closed. Power supply 3
A voltage of 20 to 50 V is applied between two to two rotary electrodes 21 to peel off the metal film 24a and attach it to the rotary electrode 21.

Then, the metal powder 24 attached to the rotating electrode 21.
b is a metal powder removing blade 22 elastically pressed against the surface of the rotating electrode 21 as the rotating electrode 21 rotates.
Is continuously scraped off and removed by the edge portion 22a of the, but further periodically, for example, every time when a series of non-metallizing operations is completed, the movable table 44 is guided by the support guide 43 in the direction of arrow E. The surface of the rotary electrode 21 can be moved and rubbed by the arcuate tip 23a of the scraper 23 to scrape off the adhered metal powder 24b to clean the surface.

As described above, since the metal film 24a of the metallized paper or the metallized film 24 can be peeled off by the rotating electrode 21 whose surface is always clean, the unnecessary metal film 24a is completely peeled off as shown in FIG. Since the non-metallized portion 24c is formed, the winding start portion 1 is formed as shown in FIGS.
b, a metallized paper or metallized film 24 from which the metal film 1a of the winding end portion 1c or the intermediate portion 1d is subjected to a peeling treatment can be wound up to manufacture a high-performance capacitor.

In the above embodiment, the scraping 23
The metal powder 24b adhering to the rotary electrode 21 is removed by moving the blades 23. However, the present invention is not limited to moving the scrapers 23, and the scrapers 23 are fixed and disposed. 21 may be moved in the axial direction.

[0051]

According to the present invention, a rotating electrode to which a voltage is applied is provided by contacting the metallized paper or metallized film running as described above, and a metal powder removing blade is elastically attached to the surface of the rotating electrode. The metal powder adhered to the rotating electrode can be removed by the metal powder removing blade, and as a result, the metal film metal continuously adhered to the rotating electrode can be performed without stopping the metal film removing operation. The effect is that powder can be removed.

Further, a rotating electrode to which a voltage is applied is provided in contact with the running metallized paper or metallized film, and the edge portion of the metal powder removing blade is elastically pressed against the surface of the rotating electrode over the entire length. As a result, the metal powder adhering to the rotary electrode can be continuously removed, and as a result, a clean rotary electrode can always be used, which has the effect of completely removing the metal film of the metalized paper or metalized film. There is an effect that a high-performance metallized paper capacitor or metallized film capacitor excellent in electrical characteristics with little variation can be manufactured.

Further, with the above-described structure, it is possible to economically manufacture the metallized paper capacitor or the metallized film capacitor by eliminating the consumable item as the electrode, and to reduce the size of the metal film removing device to be manufactured at low cost. is there.

Further, a rotating electrode to which a voltage is applied is provided in contact with the running metallized paper or metallized film, and the edge portion of the metal powder removing blade is elastically pressed against the surface of the rotating electrode over the entire length. Along with this, a barb is arranged which is pressed by the rotary electrode and is movable in the axial direction.
The rotating electrode can remove the metal powder adhered to the rotating electrode continuously while removing the metal film of the metallized paper or the metallized film, and periodically scrapes the metal electrode when the removal work of the metal film is stopped. There is an effect that the metal powder of the metal film can be removed even when the rotating electrode is not rotated by moving the metal film along the direction.

[Brief description of drawings]

1 to 11 relate to an embodiment of the present invention.
FIG. 3 is a perspective view of a metal film removing device.

FIG. 2 relates to a first embodiment of a metal film removing apparatus, and is shown in FIG.
It is a vertical cross-sectional view taken along the line I-II.

FIG. 3 relates to a first embodiment of a metal film removing device, and
FIG. 11 is a vertical sectional view taken along the line II-III.

FIG. 4 is a vertical cross-sectional view of a metal film removing apparatus according to a second embodiment.

FIG. 5 is a perspective view of a metal film removing apparatus according to a third embodiment.

FIG. 6 is an explanatory diagram showing the operating principle of the metal film removing apparatus.

FIG. 7 is a vertical cross-sectional view showing a state in which metal powder attached to a rotary electrode is removed by a metal powder removal blade.

FIG. 8 is a vertical cross-sectional view showing a state of the metallized film in which a part of the metal film is completely peeled off.

FIG. 9 is a perspective view showing a state where the metallized paper or the metallized film of the metallized paper capacitor element or the metallized film capacitor element starts to be wound.

FIG. 10 is a perspective view showing a state where the metallized paper or the metallized film of the metallized paper capacitor element or the metallized film capacitor element has finished winding.

FIG. 11 is a perspective view showing a state in which a metallized paper or metallized film from which an intermediate portion of a metal film has been peeled off is rolled up to manufacture a metallized paper capacitor element or a metallized film capacitor element.

12 to 14 relate to a conventional example, and FIG. 12 is a perspective view of a metal film removing apparatus.

FIG. 13 is a vertical cross-sectional view of a metal film removing device.

FIG. 14 is a front view showing a usage state of a metal film removing apparatus according to another conventional example.

[Explanation of symbols]

 20 Metal Film Removal Device for Metal Film 21 Rotating Electrode 22 Metal Powder Removal Blade 22a Edge Part 23 Scissors 24 Metallized Paper or Metallized Film 24a Metal Film 24b Metal Powder 32 Power Supply Device

Claims (4)

[Claims] 1. A metal film should be removed by running and contacting a metallized paper or a metallized film with a rotatable rotary electrode that is electrically connected to a power supply device and configured to apply a voltage. A voltage is applied to the rotary electrode only when a portion is in contact with the rotary electrode to adhere and remove the metal film of the metallized paper or metallized film to the rotary electrode, and the rotary electrode is rotated. A method for removing a metal film from a metallized film, which is characterized by constantly cleaning the inside and keeping it clean. 2. A rotatable rotary electrode arranged in contact with a running metallized paper or metallized film, electrically connected to a power supply device, and configured to apply a voltage, and an axially rotatable electrode. A metal film removing device for a metallized film, comprising: a metal powder removing blade that elastically presses the surface of the rotating electrode over its entire length to remove metal powder attached to the rotating electrode. 3. A pair of rotatable rotary electrodes arranged in contact with a running metallized paper or metallized film, electrically connected to a power supply device and applied with a voltage, and an acute angle. A metal powder whose edge portion formed in a circular shape faces the rotation direction of the rotary electrode and is elastically pressed and contacted with the surface of the rotary electrode over the entire length of the rotary electrode to remove the metal powder adhered to the rotary electrode. A metal film removing device for a metallized film, comprising a removing blade. 4. A pair of rotatable rotary electrodes arranged in contact with a running metallized paper or metallized film, electrically connected to a power supply device and applied with a voltage, and an acute angle. A metal powder whose edge portion formed in a circular shape faces the rotation direction of the rotary electrode and is elastically pressed and contacted with the surface of the rotary electrode over the entire length of the rotary electrode to remove the metal powder adhered to the rotary electrode. An apparatus for removing a metal film of a metallized film, comprising: a removal blade; and a scraper elastically pressed by the rotary electrode and slidable in an axial direction of the rotary electrode.