JP2021062931A - Device and method for producing laminate film - Google Patents

Abstract

To provide a device and method for producing a laminate film capable of producing a laminate film without increasing the size of the device.SOLUTION: A device for producing a laminate film comprises: a first feed roll that feeds a strip-formed first film; first dividing means that divides the first film into a plurality of first division films; first moving means that moves the first division films widthwise such that a widthwise gap vertical to a first feed direction occurs between the adjacent first division films; a second feed roll that feeds a strip-formed second film; second dividing means that divides the second film into a plurality of second division films; second moving means that moves the second division films widthwise such that a widthwise gap vertical to a second feed direction occurs between the adjacent second division films; a drum on which the first and second division films are wound a predetermined number of turns in an overlapped state; and cutting means that cuts a laminate film having a predetermined number of turns of the overlapped first and second division films.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a laminated film manufacturing apparatus and a laminated film manufacturing method.

In the element manufacturing apparatus for electronic components described in Patent Document 1, a plurality of strip-shaped elements are formed in a strip-shaped element material such as a film or a sheet unwound from a supply unit by making a plurality of cuts in the longitudinal direction by a cutter. Will be done. Each band-shaped element is engaged with a plurality of band-shaped body engagers having different inclination angles, and is wound around the same winding core in a state of being separated from each other.

Japanese Patent No. 3458289 JP-A-2007-50956

In the invention described in Patent Document 1, it is necessary to use a plurality of strip-shaped element engaging elements to open a gap between the strip-shaped elements, and to distribute each strip-shaped element divided by the cutter to a predetermined strip-shaped element engaging element. When the number of strip-shaped elements is large, it takes time to distribute the strip-shaped element to a predetermined strip-shaped body engaging element. Further, a mechanism for driving a large number of band-shaped body engagers is required, which leads to an increase in the size of the device. Further, depending on the band-shaped element material, if the tension applied to the band-shaped element is not controlled, the band-shaped element may not be wound around the band-shaped body engaging element in a normal state, which further increases the size of the device. ..

In Patent Document 2, after cutting a sheet into tapes having a predetermined width, a curved guide shaft in which a straight shaft is curved in an arc shape having a small curvature widens the space between adjacent tapes to prevent the tapes from overlapping. It is stated that.

In the invention of Patent Document 2, one curved guide shaft can prevent the overlapping of a plurality of tape rows, but in Patent Documents 1 and 2, the films supplied by the two supply means are divided to form a laminated film. Not disclosed about what to do.

Therefore, the present disclosure provides a laminated film manufacturing apparatus and a laminated film manufacturing method capable of producing a laminated film without increasing the size of the apparatus.

The laminated film manufacturing apparatus of the present disclosure includes a first supply roll around which a strip-shaped first film is wound, and a first supply roll.
A first dividing means for dividing the first film unwound from the first supply roll into a plurality of narrow first divided films in the first width direction perpendicular to the longitudinal direction of the first film.
The first movement in which the plurality of first divided films are wound and each first divided film is moved so as to increase the distance between the first divided films in the first width direction toward the downstream side in the predetermined first feed direction. Means and
A second supply roll around which a strip-shaped second film is wound, and
A second dividing means for dividing the second film unwound from the second supply roll into a plurality of narrow second divided films in the second width direction perpendicular to the longitudinal direction of the second film.
A second movement in which the plurality of second divided films are wound and each of the second divided films is moved so as to increase the distance between them in the second width direction toward the downstream side in the predetermined second feed direction. Means and
A drum that is rotationally driven around a rotation axis in a predetermined rotation direction and is wound in a state in which each of the plurality of first divided films and each of the plurality of second divided films are overlapped.
A plurality of cutting means arranged at predetermined positions around the drum, which are wound on the drum in a state of being stacked on the drum each time the drum rotates by a predetermined angle in the rotation direction. It is provided with a cutting means for cutting each of the first divided films and each of the plurality of second divided films.

Further, in the method for producing a laminated film of the present disclosure, the first film unwound from the first supply roll is subjected to a plurality of narrow first widths in a first width direction perpendicular to the longitudinal direction of the first film. The process of dividing into divided films and
A step of moving the plurality of first divided films so that the distance between them increases in the first width direction toward the downstream side in the predetermined first feed direction.
A step of dividing the second film unwound from the second supply roll into a plurality of narrow second divided films in the second width direction perpendicular to the longitudinal direction of the second film.
A step of moving the plurality of second divided films so that the distance between them increases in the second width direction toward the downstream side in the predetermined second feed direction.
A step of winding a predetermined number of turns on a drum in a state where each of the plurality of first divided films and each of the plurality of second divided films are overlapped with each other.
Each time the drum rotates by a predetermined angle in the rotation direction, each of the plurality of first divided films and the plurality of second divided films wound on the drum in a predetermined number of turns. It is provided with a cutting step of cutting each of the above.

According to the laminated film manufacturing apparatus and the laminated film manufacturing method of the present disclosure, the film supplied from each of the two supply rolls of the first supply roll and the second supply roll is divided into a plurality of narrow divided films. The divided film can be moved so that the distance between the divided films increases in the width direction toward the downstream side in the predetermined feed direction, so that the laminated film can be easily manufactured without increasing the size of the apparatus.

It is a perspective view which shows typically the laminated film manufacturing apparatus which concerns on one Embodiment of this disclosure. It is a side view which shows typically the laminated film manufacturing apparatus. It is a flowchart which shows the manufacturing procedure of a laminated film. It is a top view of a plurality of first division films engaged with the first moving means. It is a schematic diagram which illustrates the moving means of another embodiment.

Hereinafter, the laminated film manufacturing apparatus and the laminated film manufacturing method according to the embodiment will be described with reference to the drawings. FIG. 1 is a perspective view schematically showing a laminated film manufacturing apparatus according to an embodiment of the present disclosure, and FIG. 2 is a side view schematically showing a laminated film manufacturing apparatus. In the laminated film manufacturing apparatus 1, the first supply roll 13 around which the strip-shaped first film 12 is wound and the first film 12 unwound from the first supply roll 13 are supplied in the supply direction X1 of the first film 12. A first dividing means 16 for dividing into a plurality of narrow first divided films 15 and a plurality of first divided films 15 are wound around the first width direction Y1 perpendicular to the longitudinal direction, and each of the first divided films 15 The first moving means 17 and the strip-shaped second film 22 are wound around the first moving means 17 to move the film in the first width direction Y1 so that the distance between the two is increased toward the downstream side of the predetermined first feeding direction, which is the longitudinal direction. The second supply roll 23 and the second film 22 unwound from the second supply roll 23 are placed in a second width direction Y2 perpendicular to the longitudinal direction of the second film 22 to form a plurality of narrow second divided films. The second dividing means 26 for dividing into 25 and a plurality of second divided films 25 are wound around the second divided film 25, and each of the second divided films 25 has a second width as it becomes a downstream side in a predetermined second feeding direction which is a longitudinal direction. It includes a second moving means 27 that moves the film in the direction Y2 so that the distance between the two is large.

The laminated film manufacturing apparatus 1 is further rotationally driven around a rotation axis in a predetermined rotation direction, and a predetermined state in which each of the plurality of first divided films 15 and each of the plurality of second divided films 25 are overlapped with each other. A drum 32 on which the number of turns is wound and a cutting means 33 arranged at a predetermined position around the drum 32, and each time the drum 32 rotates by a predetermined angle in the rotation direction, a predetermined value is provided on the drum 32. It is provided with a cutting means 33 for cutting each of the plurality of first divided films 15 and each of the plurality of second divided films 25 wound in a state where the number of turns is overlapped.

The laminated film of the first divided film 15 and the second divided film 25 cut by the cutting means 33 is sent to a post-process such as a pressing process.

FIG. 3 is a flowchart showing a manufacturing procedure of the laminated film. Here, the manufacturing procedure of the laminated film will be described. In step a11, the first film 12 is unwound from the first supply roll 13. In step a12, the first dividing means 16 pulls out the first film 12 from the first supply roll 13 in the first width direction Y1 perpendicular to the longitudinal direction of the first film 12.
It is divided into a plurality of narrow first divided films 15. In step a13, the first moving means 17 arranges the plurality of first divided films 15 wound around the first moving means 17 in the first width direction as it becomes downstream of the predetermined first feeding direction which is the longitudinal direction. Move Y1 so that the distance between them is large. In step a21, the second film 22 is unwound from the second supply roll 23. In step a22, the second dividing means 26 transfers the second film 22 unwound from the second supply roll 23 into the second width direction Y2 perpendicular to the longitudinal direction of the second film 22 with a plurality of narrow widths. Divided into 25 divided films. In step a23, the second moving means 27 causes the plurality of second divided films 25 wound around the second moving means 27 to move in the second width direction toward the downstream side of the predetermined second feeding direction, which is the longitudinal direction. Move Y2 so that the distance between them is large. In step a3, the drum 32 is rotationally driven around the rotation axis L in a predetermined rotation direction, and a predetermined number of turns is provided in a state where each of the plurality of first divided films 15 and each of the plurality of second divided films 25 are overlapped with each other. Is wrapped around. In step a4, the cutting means 33 cuts each of the plurality of first divided films 15 and each of the plurality of second divided films 25 wound in a predetermined number of turns on the drum 32. The cut laminated film is sent to a post-process such as a press process.

By starting step a11, steps a12 and a13 are executed, by starting step a21, steps a22 and a23 are executed, and further steps a3 and a4 are executed.

The cutting means 33 is, for example, a long cutter 51 arranged along the rotation axis L of the drum 32. Each time the drum 32 rotates in a rotation direction by a predetermined angle such as 30 °, 45 °, 60 °, 90 °, the cutter 51 moves from the outside in the radial direction of the drum 32 to the inside in the radial direction. With the drum 32 rotating, the cutter 51 moves inward in the radial direction to a position where the cutter blade 52 is accommodated in the groove 53 formed in the drum 32, and winds the cutter 51 in a state of being overlapped on the drum 32. Each of the plurality of first-divided films 15 and each of the plurality of second-divided films 25 that have been hung are cut. After that, the cutter 51 returns to the origin position.

It further includes a nip roll 41 that presses at least one of the plurality of first split films 15 and the plurality of second split films 25 on the drum 32. As a result, it is possible to prevent the plurality of first divided films 15 and the plurality of second divided films 25 from being wound around the drum 32 in a state where at least one of them is displaced. In the present embodiment, the nip roll 41 is arranged on the upper part of the drum 32, but is not limited to this, and presses at least one of the plurality of first divided films 15 and the plurality of second divided films. It may be a position.

The first moving means 17 increases the distance between the first divided films 15 wound around the first moving means 17 in the first width direction Y1 toward the downstream side in the predetermined first feeding direction. The second moving means 27 moves each of the second divided films 25 wound around the second moving means 27 to the downstream side in the predetermined second feeding direction, and the distance between the second moving means 27 and the second moving means 27 in the second width direction Y2. Since the first divided film 15 and each second divided film 25 are engaged with a plurality of engagers having different inclination angles, they are separated from each other as compared with the case where the first divided film 15 and the second divided film 25 are separated from each other. Therefore, it is possible to prevent the device from becoming large.

FIG. 4 is a plan view of the first moving means, the plurality of first divided films engaged with the second moving means, and the plurality of second divided films. In the first moving means 17 and the second moving means 27, for example, a plurality of first divided films 15 and a plurality of second divided films 25 are formed in a state where an elastically deformable straight rod is curved in an arc shape having a small curvature. It can be configured by a curved guide rod 37 to be engaged. A frictional force acting on the first divided film 15 toward the outside in the width direction Y1 perpendicular to the first supply direction X1 of the first divided film 15 acts on the first divided film 15 in the width direction between the adjacent first divided films 15. The first divided film 15 can be moved so that a gap of Y1 is formed. A frictional force acting on the second split film 25 toward the outside in the width direction Y2 perpendicular to the second supply direction X2 of the second split film 25 acts on the second split film 25 in the width direction between the adjacent second split films 25. The second divided film 25 can be moved so that a gap of Y2 is formed.

FIG. 5 is a schematic diagram illustrating another means of transportation. The first moving means 17 and the second moving means 27 are not limited to the elastically deformable straight columnar curved guide rod 37 as shown in FIG. 4, for example, as shown in FIG. Diameter from the center of the width direction Y1 perpendicular to the supply direction X1 of the plurality of first divided films 15 and the width direction Y2 perpendicular to the supply direction X2 of the plurality of second divided films 25 toward the outside of the width directions Y1 and Y2. It can be configured by an elastically deformable curved guide rod 47 having an arcuate cross section such that

With such a configuration, a gap in the width direction Y1 is likely to occur between the adjacent first divided films 15, and a gap in the width direction Y2 is likely to be generated between the adjacent second divided films 25.

In the present embodiment, a laminated film in which two films are laminated is formed, but three or more films can also be laminated.

1 Laminated film manufacturing equipment 12 1st film 13 1st supply roll 15 1st division film 16 1st division means 17 1st moving means 22 2nd film 23 2nd supply roll 25 2nd division film 26 2nd division means 27 2 Moving means 31 Laminated tape 32 Drum 33 Cutting means 37,47 Curved guide rod 41 Nip roll 51 Cutter 52 Cutter blade 53 Groove X1 First supply direction Y1 First width direction X2 First supply direction Y2 First width direction

Claims (4)

The first supply roll around which the strip-shaped first film is wound, and
A first dividing means for dividing the first film unwound from the first supply roll into a plurality of narrow first divided films in the first width direction perpendicular to the longitudinal direction of the first film.
The first movement in which the plurality of first divided films are wound and each first divided film is moved so as to increase the distance between the first divided films in the first width direction toward the downstream side in the predetermined first feed direction. Means and
A second supply roll around which a strip-shaped second film is wound, and
A second dividing means for dividing the second film unwound from the second supply roll into a plurality of narrow second divided films in the second width direction perpendicular to the longitudinal direction of the second film.
A second movement in which the plurality of second divided films are wound and each of the second divided films is moved so as to increase the distance between them in the second width direction toward the downstream side in the predetermined second feed direction. Means and
A drum that is rotationally driven around a rotation axis in a predetermined rotation direction and is wound in a state in which each of the plurality of first divided films and each of the plurality of second divided films are overlapped.
A plurality of cutting means arranged at predetermined positions around the drum, which are wound on the drum in a state of being stacked on the drum each time the drum rotates by a predetermined angle in the rotation direction. A laminated film manufacturing apparatus comprising a cutting means for cutting each of the first divided films and each of the plurality of second divided films. The laminated film manufacturing apparatus according to claim 1, further comprising a nip roll that presses the plurality of first films and at least one of the plurality of second films on the drum. The laminated film manufacturing apparatus according to claim 1 or 2, wherein the first moving means and the second moving means each include rolls that are elastically deformable in a convex manner toward a downstream side in a feed direction defined in advance. A step of dividing the first film unwound from the first supply roll into a plurality of narrow first divided films in the first width direction perpendicular to the longitudinal direction of the first film.
A step of moving the plurality of first divided films so that the distance between them increases in the first width direction toward the downstream side in the predetermined first feed direction.
A step of dividing the second film unwound from the second supply roll into a plurality of narrow second divided films in the second width direction perpendicular to the longitudinal direction of the second film.
A step of moving the plurality of second divided films so that the distance between them increases in the second width direction toward the downstream side in the predetermined second feed direction.
A step of winding a predetermined number of turns on a drum in a state where each of the plurality of first divided films and each of the plurality of second divided films are overlapped with each other.
Each time the drum rotates by a predetermined angle in the rotation direction, each of the plurality of first divided films and the plurality of second divided films wound on the drum in a predetermined number of turns. A method for producing a laminated film, comprising a cutting step of cutting each of the above.

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