JP5022247B2 - Reel member, film drawing method and film winding device - Google Patents

Description

  The present invention relates to a technique for winding a series of long films around a reel member, such as an insulating adhesive film or an anisotropic conductive adhesive film, and a technique for pulling out the film from the reel member.

In general, for example, when an electronic component such as an IC chip is mounted on a liquid crystal panel, an anisotropic conductive adhesive film or an insulating adhesive film is used.
Such an adhesive film is shipped to a customer in a form wound on a reel-like member in a roll shape.

  In recent years, it has been desired from the customer side to further lengthen the adhesive film. However, when the adhesive film becomes longer, the stress generated in the adhesive film increases due to an increase in the roll diameter. There is a risk of the adhesive sticking out.

In view of such a problem, conventionally, various proposals have been made on the shape and the like of the reel member (see, for example, Patent Document 1).
However, this conventional technique has a problem that the reel itself cannot be thinned because a plurality of reel portions are arranged side by side.
Japanese Patent No. 3959247

  The present invention has been made to solve the above-described problems of the conventional technique, and an object of the present invention is to provide a technique for winding a long adhesive film with a thin reel member. It is in.

In order to achieve the above object, the present invention is a reel member having first and second flanges arranged to face each other via a shaft portion, and the first flange is connected to the shaft portion. A plurality of switching core portions having a plurality of core members that are concentrically arranged and switchable between a standing state and a collapsed state, and the second flange disposed in an operation region of the core member of the switching core portion, And an air passage connected to a winding region between the first flange and the second flange. The second flange is provided with an air discharge hole formed so as to penetrate the second flange.
In the present invention, four or more of the core members provided on the first flange are provided on a plurality of circumferences having an arbitrary radius with respect to the rotation center axis of the first flange. You can also.
Further, the present invention is a film container comprising the reel member according to the present invention, wherein a series of long films are wound around a plurality of switching core portions of the first flange of the reel member, A portion on the winding front end portion side of the film is wound around an inner switching core portion of the plurality of switching core portions, and a portion on the winding rear end portion side of the film is the plurality of switching cores. It is wound around the outside switching core part.
In the present invention, the series of long films is also effective when the anisotropic conductive adhesive film is used.
Moreover, in this invention, it is a method of pulling out the said series of elongate films from the film container of the said invention, Comprising: Of the said film wound around the outer switching core part among these switching core parts After pulling out the portion on the winding rear end side, the winding core member of the outer switching core portion is retracted from the winding region between the first and second flanges to the first flange side. And further pulling out the portion of the film on the winding front end side of the plurality of switching core portions that is wound around the inner switching core portion. A method for drawing a film having
In the present invention, the series of long films is also effective when the anisotropic conductive adhesive film is used.
Furthermore, the present invention is a film winding device for winding a film wound around a reel member having first and second flanges arranged opposite to each other via a shaft portion, A drive member having a rotary drive shaft to which the reel member according to claim 1 can be fixed, an air path capable of ejecting air to the reel member, and a drive motor for rotationally driving the drive member And an air supply means for supplying air to the air path of the drive member.

  In the case of the reel member of the present invention, the first flange has a plurality of switching core portions arranged concentrically with respect to the shaft portion, and a series of films are continuously formed on the plurality of switching core portions. By winding the film on the switching core portion, it is possible to wind a long film on a reel member having a larger diameter compared to the prior art without increasing the winding force between the films laminated and wound around each switching core part. Can do.

  According to the present invention, a longer film, particularly a film having an adhesive layer on a base material (for example, an anisotropic conductive adhesive film) is not protruded by a thin reel member. Since it can wind up, the film container which wound the thin and longer film can be provided.

  Further, in the case of the present invention, the first flange has a plurality of core members that can be switched between the standing state and the collapsed state, and passes through the operation region of these core members and between the second flanges. An air passage connected to the winding area of the first flange, and the second flange is provided with an air discharge hole formed so as to penetrate the second flange. Air is blown from the side, the air pressure is used, and the core member of the switching core part is tilted to dispose each core member in the winding region between the first and second flanges so that it can be easily wound Can be.

On the other hand, when pulling out the film from the reel member of the present invention, the core member of each switching core portion is easily erected by the urging force caused by the tension of the film, and retracted from the winding area to the first flange side. Therefore, the film can be drawn out and used smoothly by an ordinary method using a generally used film drawing apparatus.
On the other hand, according to the film winding apparatus of the present invention, the film can be efficiently and smoothly wound using the reel member of the present invention described above.

  ADVANTAGE OF THE INVENTION According to this invention, the technique which can wind up a long adhesive film with a thin reel member can be provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
The present invention is, for example, an adhesive film such as an insulating adhesive film having an adhesive layer formed on a base film or an anisotropic conductive adhesive film in which conductive particles are dispersed in the insulating adhesive. It is suitable for.
In this case, the film can be applied to any of two types in which an adhesive layer is formed on a base film and three layers in which a cover film is provided on the adhesive layer.

  1A and 1B show the configuration of an embodiment of a reel member according to the present invention. FIG. 1A is a side view and FIG. 1B is an inner side of a first flange. It is a front view which shows the structure.

As shown in FIGS. 1 (a) and 1 (b), the reel member 1 of the present embodiment is integrated using one or more resins selected from resins such as polypropylene, polystyrene, polyamide, and polycarbonate. It has the 1st and 2nd flanges 11 and 12 which are arrange | positioned through the axial part 2, and are opposed.
Here, the shaft portion 2 of the reel member 1 is fixed to a rotary drive shaft 31 that is driven by a drive motor 3 described later. Moreover, the 1st and 2nd flanges 11 and 12 are formed in the disk shape of the same magnitude | size.

The first flange 11 is provided with a plurality of switching core portions (two in the present embodiment: first and second switching core portions 21 and 22).
Here, the first or second switching core portions 21 and 22 are formed on first or second concentric circles 21a and 22a having different radii with respect to the rotation center axis O of the reel member 1, and will be described later. A plurality of core members 23 and 24 are provided.

The first switching core portion 21 is configured by arranging a plurality of core members 23 on a first concentric circle 21a located on the shaft portion 2 side. Here, each core member 23 is arranged at a position inside the first air passage 13 formed in a rectangular shape so as to penetrate the first flange portion 11, for example.
Here, each core member 23 is formed in a rectangular flat plate shape that is slightly smaller than the size of the first air passage 13.

Each core member 23 is provided with support pins 23a on both sides of the edge of one side thereof, and is supported on both side walls of the air passage 13 of the first flange 11 by using the support pins 23a as pivots. Has been.
In this case, each core member 23 has an angle in the vicinity of 0 ° with respect to the rotation center axis O of the reel member 1, that is, the surface on the outer side of the reel (support surface 23b) of the core member 23 in a tilted state. The reel member 1 is locked so as to be substantially parallel to the rotation center axis O of the reel member 1, so that the support surface 23 b is positioned in the winding region 5 between the first and second flanges 11 and 12. ing.

  On the other hand, in a standing state, each core member 23 is locked at an angle of about 90 ° with respect to the rotation center axis O of the reel member 1, whereby the winding between the first and second flanges 11, 12 is performed. The first flange 11 is configured to be retracted from the region 5 and stored in the first air passage 13 of the first flange 11.

  In the case of the present invention, the width of the support surface 23 b of each core member 23 is preferably formed wider than the width of the film 50 to be wound from the viewpoint of reliably supporting the film 50. Specifically, it is preferable that the width of the support surface 23 b of each core member 23 is 0.1 to 5.0 mm wider than the width of the film 50.

The second switching core portion 22 is configured by arranging a plurality of core members 24 on a second concentric circle 22a outside the first concentric circle 21a described above.
In the present embodiment, each core member 24 has the same configuration as that used in the first switching core portion 21, and each core member 24 has a rectangular shape so as to penetrate the first flange 11, for example. The second air passage 14 is formed at a position inside the second air passage 14.

Each core member 24 is rotatably supported on both side walls of the air passage 14 of the second flange 12 by using support pins 24a provided on both sides of the edge of one side as a support shaft.
Each core member 24, like the core member 23 of the first switching core portion 21, in an inclined state, has an angle near 0 ° with respect to the rotation center axis O of the reel member 1, that is, the reel. The outer surface (support surface 24b) is locked in a state of being substantially parallel to the rotation center axis O of the reel member 1, whereby the support surface 24b is located between the first and second flanges 11 and 12. It is configured to be located in the winding region 5.

  In addition, each core member 24 is locked at an angle in the vicinity of 90 ° with respect to the rotation center axis O of the reel member 1 in an upright state, whereby the winding between the first and second flanges 11, 12 is performed. It is configured to be retracted from the region 5 and stored in the second air passage 14 of the first flange 11.

In the case of the present invention, the width of the support surface 24b of each core member 24 is preferably wider than the width of the film 50 to be wound from the viewpoint of reliably supporting the film 50. Specifically, the width of the support surface 24 b of each core member 24 is preferably formed to be 0.1 to 5.0 mm wider than the width of the film 50.
On the other hand, the second flange 12 of the reel member 1 has a plurality of air discharge holes 25 formed so as to penetrate the second flange 12.

  In the case of the present embodiment, the air discharge hole 25 is provided at a position facing the first and second air passages 13 and 14 of the first flange 11, and further, with respect to the first air passage 13. It is also provided at a position on the shaft side. Note that only a part of these air discharge holes 25 is depicted in FIG.

FIG. 2 is a schematic diagram showing a configuration of a film winding device applicable to the reel member of the present embodiment.
As shown in FIG. 2, the drive device 30 includes a drive member 32 having a drive shaft 31 for rotating the reel member 1 described above. The drive member 32 has a thick disk-shaped main body 33 that is slightly larger than the reel member 1, for example, and is rotated at a predetermined speed by receiving rotational power from the drive motor 3 via the bearing mechanism 4. It is configured as follows.

  Here, the air supply member 6 is provided between the shaft portion 34 of the drive member 32 and the bearing mechanism 4. The air supply member 6 is disposed so as to contact the shaft portion 34 of the drive member 32 in a rotationally sliding state. The air supply member 6 is provided with first and second air introduction paths 7 and 8 for introducing air 10 supplied from an air supply source (not shown), thereby providing air supply means. Is configured.

  On the other hand, first and second air paths 35 and 36 for allowing the air 10 to pass therethrough are provided in the drive member 32. The first and second air paths 35 and 36 are connected to the first and second air introduction paths 7 and 8 of the air supply member 32 at the shaft portion 34 of the drive member 32.

The air supply member 6 used in the present embodiment uses a known slip ring mechanism, and by this mechanism, the first and second air introduction paths of the air supply member 6 when the drive member 32 rotates. The air 10 can be smoothly supplied to the first and second air paths 35 and 36 in the drive member 32 from the seventh and eighth members.
Further, the first and second air passages 35 and 36 of the drive member 32 are configured to eject air 10 at the front surface 33 a of the main body 33.

  In the case of the present embodiment, the first flange 11 of the reel member 1 is attached in close contact with the front surface 33 a of the main body portion 33 of the drive member 33. Then, on the front surface 33 a of the main body portion 33 of the drive member 32, each core member 23 is in the flange radial direction outer side region of the first and second air passages 13 and 14 provided in the first flange 11. , 24 are provided with a plurality of air jets 37, 38 in the region corresponding to the outer edge in the standing state.

  In this case, from the viewpoint of improving the flow of the air 10, it is preferable to provide the air outlets 37 and 38 at a position facing the air discharge hole 25 provided in the second flange 12, for example.

FIGS. 3A and 3B to 9 are diagrams for explaining the reel member winding operation of the present embodiment.
Hereinafter, for convenience of explanation, a half portion of the reel member 1 having a symmetrical shape is illustrated and described as appropriate.

In the present embodiment, first, as shown in FIG. 2, the core members 23 and 24 are raised in the first flange 11 of the reel member 1.
In this state, the leading end portion of the film 50 is fixed to the shaft portion 2 of the reel member 1, and the drive motor 3 is operated to rotate the reel member 1 in the winding direction.

Thereafter, as shown in FIGS. 3A and 3B, the rotation of the reel member 1 is stopped when the number of turns of the film 50 on the shaft portion 2 reaches a predetermined number.
In the present invention, when the two-layer adhesive film is wound, the winding is performed with the adhesive layer facing the shaft portion 2 as usual.

Next, the compressed air 10 is supplied from the air supply source to the first air introduction path 7 of the air supply member 6 using the film winding device 30 described above.
The supply of air 10 causes the air 10 to flow through the first air introduction path 7 in the air supply member 6 and the first air path 35 in the drive member 32, and the front surface of the body portion 33 a of the drive member 32. Air 10 is ejected from the ejection port 37 of 33a.

  As a result, as shown in FIGS. 3B and 4A, air is applied to the outer edge of the standing core member 23, for example, the winding switching core member 23X (see FIG. 5). 10 is blown, and the core member 23X is rotated by the air pressure in the direction of tilting with the support pin 23a as a support shaft. As shown in FIG. 4B, the core member 23X is rotated by the first and second core members 23X. It moves to the winding area 5 between the flanges 11 and 12.

As a result, the winding switching core member 23 </ b> X is locked in a state of being substantially parallel to the rotation center axis O of the reel member 1.
Here, the air 10 blown against the winding switching core member 23 </ b> X is discharged to the outer surface side of the second flange 12 through the air discharge hole 25 of the second flange 12.
In this state, the reel member 1 is rotated in the winding direction. As a result, as shown in FIG. 5, the winding switching core member 23X comes into contact with the surface of the film 50, and the film 50 is locked to the winding surface 23b.

Further, the reel member 1 is rotated in the winding direction, and the air 10 is sequentially blown against the adjacent core members 23 of the first switching core portion 21, so that the winding switching core member 23 </ b> X is the same. Then, all the core members 23 are brought down, and the film 50 is wound around these core members 23.
Thereafter, the reel member 1 is rotated a predetermined number of times, so that the film 50 is wound on the first switching core portion 21 by a predetermined number of turns as shown in FIGS.

Next, in the film winding device 30 described above, compressed air 10 is supplied from the air supply source to the second air introduction path 8 of the air supply member 6.
The supply of the air 10 causes the air 10 to flow through the second air introduction path 8 in the air supply member 6 and the second air path 37 in the drive member 32, and the front surface of the main body 33 of the drive member 32. Air 10 is ejected from the ejection port 38 of 33a.

  As a result, as shown in FIG. 7 (a), air 10 is blown to the outer edge of the core member 24 in a standing state, for example, the winding core member 24X (see FIG. 8). The core member 24X is rotated by air pressure in a direction that tilts around the support pin 24a as a support shaft, and the core member 24X is moved between the first and second flanges 11 and 12 as shown in FIG. Move to the winding area 5.

As a result, the winding switching core member 24 </ b> X is locked in a state of being substantially parallel to the rotation center axis O of the reel member 1.
Here, the air 10 blown against the winding switching core member 24 </ b> X is discharged to the outer surface side of the second flange 12 through the air discharge hole 25 of the second flange 12.
In this state, the reel member 1 is rotated in the winding direction. As a result, as shown in FIG. 8, the winding switching core member 24X comes into contact with the surface of the film 50, and the film 50 is locked to the winding surface 24b.

In this state, the reel member 1 is rotated in the winding direction, and all the core members 24 are brought down by sequentially blowing the air 10 to the respective core members 24 of the second switching core portion 22. The film 50 is wound up.
Further, by rotating the reel member 1 a predetermined number of times, the film 50 is wound on the second switching core portion 22 by a predetermined number of turns as shown in FIGS.

10 to 14 show the film drawing operation in the present embodiment.
First, when pulling out the film 50 from the film container 40 shown in FIG. 9, the leading end of the film 50 in the pulling direction is pulled and the reel member 1 is rotated a predetermined number of times in the pulling direction.

  Then, immediately after the delivery of the film 50 from the second switching core portion 22 is finished and the engagement of the film 50 with the winding switching core member 24X in the second switching core portion 22 is released, As shown in FIG. 10, one end of the reel switching core member 24Y on the inner side in the reel radial direction adjacent to the core member 24X on the upstream side in the drawer direction, and the surface of the film 50 (for example, a base film) Surface).

  In this state, when the reel member 1 is further rotated in the same direction and the drawing of the film 50 is continued, the moving direction (rotation direction) of the core member 24Y for drawing switching and the drawing direction (linear direction) of the film 50 are changed. Due to the tension of the film 50 caused by the deviation, an urging force to the outer side in the radial direction of the reel is generated, whereby the core member 24Y is pushed up in the same direction, as shown in FIGS. 11 and 12A. Further, the winding core member 24 </ b> Y rotates in a direction to stand up with the support pin 24 a as a support shaft, retracts from the winding region 5 between the first and second flanges 11, 12, and the second of the first flange 11. Stored in the air passage 14.

  Further, when the film 50 is pulled and the reel member 1 is rotated, each core member 24 is retracted from the winding region 5 and stored in the second air passage 14 of the first flange 11 by the above-described operation. The

  Thereafter, by continuing the pulling of the film 50 and the rotation of the reel member 1, immediately after the engagement of the film 50 with the winding switching core member 23X in the first switching core portion 21 is released, FIG. As shown in FIG. 2, one end of the reel switching core member 23Y adjacent to the core member 23X on the upstream side in the pull-out direction on the inner side in the reel radial direction and the surface of the film 50 (for example, the surface of the base film) Touch.

  In this state, when the reel member 1 is further rotated to continue the drawing of the film 50, the moving direction (rotation direction) of the core member 23Y for drawing switching and the drawing direction (linear direction) of the film 50 are the same as described above. Due to the tension of the film 50 caused by the deviation, an urging force toward the outer side in the radial direction of the reel is generated, whereby the core member 23Y is pushed up in the same direction, as shown in FIGS. 14 and 12B. Then, the winding core member 23Y rotates in a direction to stand up with the support pin 23a as a support shaft, and retracts from the winding region 5 between the first and second flanges 11 and 12, and the first flange 11 Is stored in the air passage 13.

  Further, when the film 50 is pulled and the reel member 1 is rotated, each core member 23 is retracted from the winding region 5 and stored in the first air passage 13 of the first flange 11 by the above-described operation. The

  Thereafter, the reel member 1 is rotated in the same direction to continue the drawing of the film 50, whereby the film 50 wound around the shaft portion 2 of the reel member 1 is pulled out, and after the reel member 1 is rotated a predetermined number of times, FIG. As shown in (c), the drawing of the film 50 is completed.

  As described above, according to the present embodiment, the first flange 11 has the first and second switching core portions 21 and 22 arranged concentrically with the shaft portion 2. By continuously winding a series of films 50 around the first and second switching core portions 21 and 22, the winding force between the films 50 laminated and wound around the switching core portions 21 and 22 can be increased. Without increasing the length, the long film 50 can be wound around the reel member 1 having a larger diameter than that of the prior art.

  According to the present embodiment, the longer reel film 1, particularly a film having an adhesive layer on the base material (for example, anisotropic conductive adhesive film) is used as the adhesive by the thin reel member 1. Since it can wind up without protruding, the film container 40 which wound the thin and longer film 50 can be provided.

  Further, in the case of the present embodiment, it has a plurality of core members 23 and 24 configured to be able to switch between a standing state and a collapsed state, and passes through an operation region of the core members 23 and 24 and Air passages 13, 14 connected to the winding region 5 between the second flange 12 and the second flange 12, and an air passage formed so as to penetrate the second flange 12. Since the discharge hole 25 is provided, the air 10 is blown from the first flange 11 side and the air pressure is used to tilt the core members 23 and 24 of the first and second switching core portions 21 and 22. As a result, it can be arranged in the winding region 5 between the first and second flanges 11 and 12 and can be easily wound up.

On the other hand, when pulling out the film 50 from the reel member 1 of the present embodiment, the core members 23 and 24 of the switching core portions 21 and 22 are easily raised by the urging force resulting from the tension of the film 50, Since the film is retracted from the winding region 5 and stored in the first flange 1, the film 50 can be smoothly pulled out and used in a normal manner using a generally used film drawing device.
On the other hand, according to the film winding device 30 of this embodiment, the film 50 can be efficiently and smoothly wound using the reel member 1 of this embodiment described above.

The present invention is not limited to the above-described embodiment, and various changes can be made.
For example, in the above-described embodiment, two switching core portions are provided on the first flange. However, the present invention is not limited to this, and three or more switching core portions can be provided.

Further, the number, shape, and the like of the core members provided in the switching core portion are not limited to those in the above embodiment, and can be changed as appropriate.
However, considering damage to the film, it is preferable to provide four or more core members in each switching core.

  Moreover, in the above-described embodiment, after the air is blown to the winding switching core member and then defeated, the remaining core members are sequentially defeated. For example, for the plurality of core members. At the same time, it is possible to blow the air down.

(A): Side view showing the configuration of the embodiment of the reel member according to the present invention (b): Front view showing the configuration of the inner side of the first flange Schematic which shows the structure of the film winding apparatus applicable to the reel member (A): Cross-sectional view of the reel member for explaining the winding operation of the reel member (Part 1) (b): Front view of the first flange for explaining the winding operation of the reel member (No. 1) 1) (A)-(c): Sectional drawing of the reel member for demonstrating winding operation | movement of the reel member (the 2) Front view of the first flange for explaining the reel member winding operation (part 2) Front view of the first flange for explaining the winding operation of the reel member (No. 3) (A)-(c): Sectional drawing of the reel member for demonstrating winding operation | movement of the reel member (the 3) Front view of the first flange for explaining the reel member winding operation (No. 4) Front view of the first flange for explaining the reel member winding operation (No. 5) Front view of the first flange for explaining the drawing operation of the reel member (No. 1) Front view of the first flange for explaining the drawing operation of the reel member (No. 2) Sectional drawing of the reel member for explaining the drawing operation of the reel member Front view of the first flange for explaining the drawing operation of the reel member (No. 3) Front view of the first flange for explaining the drawing operation of the reel member (No. 4)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Reel member 2 ... Shaft part 3 ... Drive motor 5 ... Winding area | region 11 ... 1st flange 12 ... 2nd flange 13 ... 1st air passage 14 ... 2nd air passage 21 ... 1st switching core Part 22 ... 2nd switching core part 23, 24 ... Core member 25 ... Air discharge hole 30 ... Film winder 40 ... Film container 50 ... Film

Claims (7)

A reel member having first and second flanges arranged to face each other via a shaft portion,
The first flange includes a plurality of switching core portions that are concentrically arranged with respect to the shaft portion and have a plurality of core members that can be switched between a standing state and a collapsed state, and the cores of the switching core portion An air passage disposed in an operation region of the member and connected to a winding region between the second flange and the second flange,
A reel member in which the second flange is provided with an air discharge hole formed so as to penetrate the second flange.   2. The four or more core members provided on the first flange are provided on a plurality of circumferences having an arbitrary radius with respect to the rotation center axis of the first flange. Reel member. A film container comprising the reel member according to any one of claims 1 and 2, wherein a series of long films are wound around a plurality of switching core portions of a first flange of the reel member. ,
A portion on the winding front end portion side of the film is wound around an inner switching core portion of the plurality of switching core portions, and a portion on the winding rear end portion side of the film is the plurality of switching cores. The film container wound around the outer switching core part among the parts.   The film container according to claim 3, wherein the series of long films are anisotropic conductive adhesive films. A method for pulling out the series of long films from the film container according to claim 3 or 4,
After pulling out the part on the winding rear end side of the film wound around the outer switching core part among the plurality of switching core parts,
Retreating the core member of the outer switching core portion from the winding region between the first and second flanges to the first flange side;
Furthermore, the film | membrane which has the process of drawing out the part by the side of the winding front-end | tip part of the said film by which the part by the side of the winding front-end | tip part of the said film is wound by the inner side switching core part among these switching core parts Withdrawal method.   The film drawing method according to claim 5, wherein the series of long films are anisotropic conductive adhesive films. A film winding device for winding a film wound around a reel member having first and second flanges arranged to face each other via a shaft portion,
A drive member having a rotary drive shaft capable of fixing the reel member according to claim 1 or 2 and provided with an air path capable of ejecting air to the reel member;
A drive motor for rotationally driving the drive member;
A film winding apparatus comprising air supply means for supplying air to an air path of the drive member.

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