JPH04223956A - Method and device for connecting thin film material roll - Google Patents

Abstract

PURPOSE:To prevent winding disarrangement of a waiting roll, which is easy to be generated at the time of connection, by moving a waiting roll under the condition that the waiting roll is inclined a little so that the waiting roll touches a supply roll from the top of the waiting roll and that is adhered for connection at the time of connecting the starting end of a waiting roll to the rear end of the supply roll. CONSTITUTION:At the time of connecting a waiting roll 1B to a supply roll 1A, the waiting roll 1B is moved under the condition that the waiting roll 1B is inclined a little so that an end 1B of a side of the waiting roll 1B, which has the top part 4 where an adhering means 5 for connection is located, touches the rear end of the support roll 1A a little earlier than the other end 1B2. To move the waiting roll 1B under the inclined condition, one end 13B1 of a roller 13B of the rear side of a waiting roll supporting roller 13 is supported by a cylinder mechanism 18, and the cylinder mechanism 18 is extended to make the end 13B of the rear side roller 13B come close to a driving roller 11 side earlier than the other end 13B2. A one-side adhesive tape as the adhering means 5 for connection is attached under the condition that a part of the adhesive surface is projected from the top part 4 for exposure.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a method and device for connecting thin film rolls, and more specifically, the present invention relates to a method and apparatus for connecting thin film rolls, and more specifically, a plurality of thin film rolls made of synthetic resin film, paper sheets, etc., wound around a core made of kraft paper or the like by a winding machine. A connection method between each thin film roll when sequentially supplying thin film rolls to post-processing processes such as printing and surface treatment using a surface drive method suitable for supplying long films and wide films. Regarding equipment.

0002

[Prior Art] Conventionally, when a plurality of thin film rolls are sequentially supplied to a post-processing process, the method of feeding the thin film rolls is to rotate the thin film rolls that are being supplied and on standby about a drive shaft. This was done using a so-called center drive system (for example, see Japanese Patent Application Laid-Open No. 63-212654).

[0003] In conventional supply, that is, supply using a center drive system, a thin film roll waiting for use (hereinafter simply referred to as a standby roll) is placed at the end of a thin film roll being supplied (hereinafter also simply referred to as a supply roll). ) When the starting end of the thin film is connected, the cutting blade that moves in the width direction of the thin film body is used to cut the film diagonally to the feeding direction to prevent warping or sagging of the connected part. The starting end of the cut thin film roll is cut by hand in advance at approximately right angles to the supply direction, and adhesive tape or other adhesive means is applied to the starting end intermittently or continuously over the entire width. It is set up. This is because, in the case of the center drive system, both the supply roll and the standby roll are supported by the drive shaft, and their rotations are also synchronized. This is because if the rear end portion of the supply roll is not contacted, warping or sagging will occur in the connecting portion and the thin film body behind the connecting portion.

However, the preparatory work of cutting all the starting ends of a plurality of thin film rolls approximately perpendicular to the supply direction and disposing adhesive tape over the entire width is extremely complicated. This has the disadvantage that the cut portion is lost. Particularly when the thin film body is wide, the cutting operation cannot be carried out by one person and not only requires more labor, but also the loss portion increases in proportion to the width of the thin film body.

[0005] Therefore, the applicant of the present invention first proposed a method and device for connecting thin film rolls that are successively supplied using a surface drive system suitable for supplying long films and wide films. It was proposed in No. 220588.

[0006] The present applicant further endeavored to improve the previously proposed technique, and found that the starting end of the standby roll was not securely adhesively connected to the rear end of the supply roll, and the standby roll was wrapped around the pinch roller and guide roller. It turns out that there are cases where this happens.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus for connecting thin film rolls that can reliably connect a standby roll to a supply roll and continuously supply the roll.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the present inventor has made extensive studies and has arrived at the present invention.

That is, in the method for connecting thin film rolls according to the present invention, the starting end is cut diagonally with respect to the supply direction at the rear end of the thin film roll that is supplied to the post-processing process by a surface drive method. A thin film roll connecting method for sequentially supplying a plurality of thin film rolls to the post-processing step by connecting waiting thin film rolls such as A connecting adhesive means for connecting to the rear end of the thin film roll being supplied is provided at the top of the starting end, and a releasable means is provided on the back side of the top of the starting end for the thin film of the layer immediately below the top. using a thin film body roll having a configuration in which a peeling means having the above is disposed, and the top part of the starting end is temporarily fixed to the thin film body of the layer immediately below the top part by temporary bonding means having an adhesive force weaker than the connecting adhesive means, When the waiting thin film roll is moved to the thin film roll being supplied and connected, the end of the side having the top where the connection adhesive means is disposed is slightly smaller than the other end. The method is characterized in that the waiting thin film roll is first moved in a slightly inclined state so as to come into contact with the thin film roll being supplied.

In a preferred embodiment of the method for connecting thin film rolls according to the present invention, (1) the connecting adhesive means uses a single-sided adhesive tape such that a part of the adhesive surface thereof is exposed from the top of the starting end of the waiting thin film roll; The tape is attached to the back side of the top part in a protruding state, and the peeling means converts the back side of the single-sided adhesive tape into a surface that is releasable to the thin film layer immediately below the top part that is in contact with the back side. ■The connection adhesive means has a structure in which double-sided adhesive tape is attached to the top surface of the starting end of the thin film roll in standby; ■A cushioning material is attached to the back of the adhesive surface of the connection adhesive means. that the
(2) The cushioning material is made of substantially the same material as the thin film body, and (2) The cushioning material is made of foamed resin.

[0011] The thin film roll connecting device according to the present invention includes:
At the rear end of the thin film roll supplied to the post-processing process using a surface drive method, the starting end is cut diagonally with respect to the supply direction, and the rear end of the thin film roll being fed to the top of the starting end. A thin film roll connecting device that connects waiting thin film rolls provided with a connection adhesive means for connecting to a thin film roll and sequentially supplies a plurality of thin film rolls to the post-processing step. The standby roll support roller that supports the standby thin film roll is arranged such that when connecting the thin film body, the end of the thin film roll on the side having the top portion where the connection adhesive means is disposed is set higher than the other end. It is characterized by having a configuration in which it is supported and moved in an inclined state so as to come into contact with the rear end portion of the thin film roll being supplied relatively slightly earlier.

0012

[Operation] According to the present invention, when the starting end of the standby roll is connected to the rear end of the supply roll, the end of the standby roll having the top where the connecting adhesive means is disposed is closer to the other end. The standby roll also moves in a slightly inclined state so as to contact the rear end of the supply roll slightly first, so that the standby roll contacts the supply roll from the top first and is adhesively connected. Therefore, it is possible to prevent the winding disorder of the standby roll, which is likely to occur at the time of connection.

[0013] Furthermore, by disposing a peeling means capable of peeling off the thin film layer immediately below the top on the back side of the top of the starting end, the top, which is the outermost layer of the thin film, and the thin film one turn inside can be separated. Even if the thin film body is a film with high blocking properties, the thin film body at the top part will peel off smoothly at the time of connection, so the rear end of the supply roll can be reliably separated. is connected to and supplied to the post-processing process.

Furthermore, since the top of the starting end is temporarily fixed to the thin film body immediately below the top by temporary adhesive means having a weaker adhesive force than the connecting adhesive means, the starting end of the thin film member can be easily attached during transportation or standby. On the one hand, it is possible to prevent the parts from peeling off and the winding becomes disordered, and at the time of connection, since the adhesive means for connection has a stronger adhesive force, it is easily peeled off and the temporary fixing is released.

[0015] If a cushioning material, preferably a cushioning material made of substantially the same material as the thin film body, more preferably a cushioning material made of foamed resin, is provided on the back side of the connection adhesive means, the connection adhesive means at the time of connection can be The contact pressure can be further increased.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view showing an embodiment of a thin film roll connected according to the present invention, FIG. 2 is a partially enlarged plan view of FIG. 1, FIG. 3 is a partially enlarged side view of FIG. 2, and FIG. 5 is a partially enlarged plan view showing another embodiment of the thin film roll, FIG. 6 is a partially enlarged side view of FIG. 5, and FIG. 7 is a partially enlarged side view of another embodiment of the thin film roll. 8 (A) to (C) and FIG. 9 (A) to (C) are schematic explanatory views showing an example of the connection method and device of the present invention; FIG.
FIG. 11 is a schematic side view showing an example of a standby roll support roller.

In FIG. 1, reference numeral 1 denotes a thin film roll made by winding a thin film body 2 made of a synthetic resin film or sheet, a paper sheet, etc. around a winding core 3 made of kraft paper or the like using a winding machine. It is.

As shown in FIGS. 8 and 9, the thin film roll 1 is supplied to post-processing processes such as printing and surface treatment by a supply means using a surface drive system suitable for supplying long films and wide films. , to be post-processed.

The starting end of the thin film roll 1 remains cut obliquely to the supply direction by a cutting blade that moves in the width direction of the thin film 2 during winding. The angle of the top 4 of the starting end is determined by the winding speed during winding and the moving speed of the cutting blade, but is usually 20 to 80 degrees, and the preferred angle for the present invention is 30 to 60 degrees.

A connecting adhesive means 5 is disposed on the top 4 of the starting end, and a second thin film member on the inside of one turn, which is a layer immediately below the top 4, is provided on the back side of the top 4 of the starting end. A peeling means having peelability for the layer 2a is provided. In addition, the top part 4 of the starting end is coated with double-sided tape, single-sided tape, or adhesive having a weaker adhesive force than the connecting adhesive means 5, so as not to peel off from the rolled state during transportation or when pre-driving is applied during standby. It is temporarily fixed to the second layer 2a of the thin film body, which is the layer immediately below the top part 4, by a temporary adhesive means 7 made of adhesive or the like. By making the adhesive force of the temporary adhesive means 7 weaker than that of the connection adhesive means 5, it will not peel off during transportation or standby, but the connection adhesive means 5 will have a stronger adhesive force during connection. Therefore, it is easily peeled off and the temporary fixing is released. When the size of the temporary adhesive means 7 is a single-sided or double-sided tape, the length y is 15 to 25 mm, preferably 20 mm.
, the width x is preferably about 2 to 5 mm.

FIG. 1 shows an embodiment in which a single-sided adhesive tape 5A is used as the connection adhesive means 5, and a partially enlarged view is shown in FIG. 2, and a side view of FIG. 2 is shown in FIG. . As shown in FIGS. 2 and 3, the single-sided adhesive tape 5A is attached with a part of the adhesive surface protruding from the top 4.

Single-sided adhesive tape 5 as connection adhesive means 5
When A is used, the thin film body 2 which is the top part 4 as shown in FIG.
The single-sided adhesive tape 5A is interposed as a peeling means between the outermost layer of the thin film body 2 and the second layer 2a of the thin film body 2 located one turn inside. However, in order to ensure releasability, the peelability of the top 4 portions during connection is good, so there is no need to provide a peeling means using a separate member. It is also possible to attach a tape of a separate member having a .

As shown in FIG. 2 as a partially enlarged view, the single-sided adhesive tape 5A has a width X of about 50 to 50 mm in the supply direction.
100mm, preferably about 75mm, length Y is 70~1
It is preferable that the size is about 50 mm, preferably about 100 to 120 mm, and the adhesion position is set at a distance Z of 2 to 3 mm from the end of the thin film body 2, taking into account misalignment in the width direction at the time of connection. It is preferable that the Also,
The exposed length W of the adhesive surface of the single-sided adhesive tape 5A from the top 4 is preferably 30 to 100 mm, preferably approximately 50 mm. Exposure length W is 30mm
If it is less than 100 mm, the adhesion area of the single-sided adhesive tape 5A will be narrow and the adhesive force will be insufficient, and if it exceeds 100 mm, the tip of the single-sided adhesive tape 5A will easily bend and wind around pinch rollers, guide rollers, etc. Incidentally, the size of the single-sided adhesive tape 5A and the degree of exposure of the adhesive surface are not limited to the above values, and may vary depending on various conditions such as the type and width of the thin film body 2, the line speed during connection, the adhesive strength of the single-sided adhesive tape 5A, etc. Adjust as appropriate depending on experience, etc. Furthermore, the size of the temporary adhesion means 7 is also adjusted as appropriate depending on various conditions, like the single-sided adhesive tape 5A, but for example,
When the thin film body 2 is made of polyethylene, the width x is preferably about 2 mm, and when it is made of vinyl chloride resin, the width x is preferably about 5 mm.

Next, FIG. 5 shows a partially enlarged view when a double-sided adhesive tape 5B is used as the connection adhesive means 5, and FIG. 6 is a side view of FIG. As shown in FIGS. 5 and 6, the double-sided adhesive tape 5B is attached to the surface of the top portion 4. As shown in FIGS.

Double-sided adhesive tape 5 as connection adhesive means 5
When B is used, as shown in FIG.
A peeling member 8 having peelability to the second layer 2a is disposed between the outermost layer of the thin film body 2 and the second layer 2a of the thin film body 2 located one turn inside, and is interposed between the two. Even if 2 is a film with high blocking properties, the peelability of the top 4 portion during connection is good. Alternatively, the peeling means may be formed by subjecting the back surface of the top portion 4 to a peeling treatment without providing the peeling member 8, which is a separate member.

The size of the double-sided adhesive tape 5B may be such that the adhesive surface has approximately the same size as the single-sided adhesive tape 5A, but as in the case of the single-sided adhesive tape 5A,
It is adjusted as appropriate depending on various conditions.

As the connection adhesive means 5, an adhesive may be applied (applied) directly to the top 4 instead of the double-sided adhesive tape 5B. In this case, other configurations such as the peeling means are substantially the same as in the case of the double-sided adhesive tape 5B.

The connecting adhesive means 5 is provided at one location on the top portion 4, and is not required at other portions such as the oblique side portion 6 at the starting end of the thin film body 2. This is because, when the connecting adhesive means is disposed on the oblique side portion 6, the connecting adhesive means disposed on the oblique side portion 6 etc. is placed on the thin film roll 1 being supplied before the connecting adhesive means 5 on the top portion 4 is disposed on the oblique side portion 6. If it comes into contact with and is adhered to, the thin film body 2
This is because there is a risk that tearing or irregular winding may occur, or the connecting adhesive means 5 of the top portion 4 may not be bonded to the thin film roll 1 being supplied and may wind around a pinch roller, guide roller, etc.

Regardless of the form of the connecting adhesive means 5 and the peeling means, in order to further improve the peelability of the starting end, a highly releasable tape or the like is pasted on the back side of the oblique side 6. Good too.

In addition, in order to increase the contact pressure of the connection adhesive means 5 at the time of connection to ensure more secure adhesion to the rear end of the thin film roll 1 being supplied, as shown in FIGS. 4 and 7. It is preferable to arrange a cushioning material 9 on the back side of the connection adhesive means 5 as shown in FIG. FIG. 4 shows a case where a cushioning material 9 is provided on the back side of the single-sided adhesive tape 5A, and FIG. It shows. In addition, when the cushion material 9 is provided, it goes without saying that a peeling means such as applying a peeling treatment to the back surface of the cushion material 9 or disposing a peeling member 8 is provided.

[0032] The cushioning material 9 is attached to the connecting adhesive means 5.
The thin film body can be made of various materials such as foamed resin, natural or synthetic rubber, or cardboard to increase the contact pressure of the material, but lightweight foamed resin is currently available. Even when the roll 1 is pre-driven, it does not peel off due to centrifugal force, which is preferable. Further, it is more preferable to use substantially the same material as the thin film body 2, since it becomes unnecessary to remove foreign matter when collecting the thin film body 2. Furthermore, the size of the cushioning material 9 is preferably approximately equal to or slightly larger than the size of the adhesive surface of the connecting adhesive means 5 in order to increase the contact pressure of the connecting adhesive means 5.

Next, a means for continuously supplying a plurality of thin film rolls 1 having the above structure to the post-processing step will be explained with reference to FIGS. 8A to 8C.

As mentioned above, there are two supply methods, the center drive method and the surface drive method, but the present invention employs the surface drive method, which is suitable for supplying long films and wide films. .

In FIG. 8, the connecting device 10 is mainly composed of a drive roller 11, a supply roll support roller 12, a standby roll support roller 13, a support arm 14, a guide roller group 15, and a core holder 16. Although the configuration of the standby roll support roller 13 is omitted in FIG. 8 for the sake of explanation, it has a configuration as shown in FIG. 11, and the configuration and the operation based on the configuration will be described later.

As shown in FIG. 8(A), the thin film roll 1 is supported by the supply roll support roller 12 and comes into contact with the drive roller 11, and as the drive roller 11 rotates, the thin film body 2 is moved onto the outer surface of the roll. The guide roller group 15 with
It is then supplied to a post-treatment process (not shown). On the other hand, on the standby roll support roller 13, a thin film roll 1 that is to be supplied to the post-processing process subsequent to the currently supplied thin film roll 1 is waiting. Hereinafter, in order to distinguish between the thin film roll 1 that is being supplied and the one that is on standby, the thin film roll 1 that is being supplied will be referred to as a supply roll 1A, and the thin film roll 1 that is on standby will be referred to as a standby roll 1B.

As the supply of the supply roll 1A progresses and before the thin film body 2 of the supply roll 1A is completely exhausted, the standby roll 1B is moved toward the drive roller 11, and the drive roller 1
1 (see FIG. 8(B)). This contact causes
The starting end of the standby roll 1B is bonded to the rear end of the supply roll 1A by a connection adhesive means 5 disposed on the top 4 (see FIG. 1) of the starting end. At this time, the rotation of the standby roll 1B is completely synchronized with the rotation of the supply roll 1A and the drive roller 11, but it is preferable to predrive the standby roll 1B in advance in order to alleviate tension changes during connection. This adhesion connects the thin film body 2 of the supply roll 1A and the thin film body 2 of the standby roll 1B. Therefore, the thin film body 2 is continuously supplied to the post-processing process.

[0038] In the connection method according to the present invention, at the time of the above connection,
That is, as shown in FIG. 10 in the state immediately before FIG. 8(B), the end 1B1 of the standby roll 1B on the side having the top 4 where the connection adhesive means 5 is disposed is connected to the other end 1B2.
By moving the standby roll 1B in a slightly inclined state so as to contact the rear end of the supply roll 1A slightly earlier than the top part 4 and the connecting adhesive provided on the top part 4. Since the means 5 comes into contact with the rear end of the supply roll 1A first to make an adhesive connection, it is possible to prevent the standby roll 1B from being twisted, sagged, or otherwise disturbed when it is connected.

As shown in FIGS. 10 and 11, the configuration for moving the standby roll 1B in a slightly inclined state is such that one end 13B1 of the roller 13B on the rear side of the standby roll support roller 13 is supported by a cylinder mechanism 18. , at the time of the above connection, that is, when bringing the standby roll support roller 13 close to the drive roller 11, the cylinder mechanism 18 is extended to move one end 13B1 of the rear roller 13B to the other end 1.
Bring it closer to the drive roller 11 side before 3B2. Due to the movement of the rear roller 13B due to the action of the cylinder mechanism 18, the standby roll 1B supported by the standby roll support roller 13 comes into contact with the rear end while having an inclination angle θ with respect to the drive roller 11. Become. The value of the inclination angle θ varies depending on various conditions of the thin film body (type, thickness, width, uneven thickness, uneven winding, winding length, etc.), but is 0.0.
The range is preferably 1 to 2 degrees, more preferably 0.1 to 0.
．． The angle is 6 degrees, and the angle can be set appropriately by adjusting the stroke of the cylinder mechanism 18. In FIG. 8, the configurations of the standby roll support roller 13 and the support arm 14 are shown in a simplified manner, but the support for one end 13B1 of the rear roller 13B has the configuration described above and shown in FIG. .

The cylinder mechanism 18 may be an air cylinder, a hydraulic cylinder, or a hydraulic cylinder. Furthermore, instead of the cylinder mechanism 20, the rear roller 13B is driven by a gear using a motor as a driving source.
Alternatively, one end 13B1 of 13B1 may be applied.

Further, in the above embodiment, one end 13B1 of the rear roller 13B is supported by the cylinder mechanism 18, and the one end 13B1 is brought closer to the drive roller 11 side before the other end 13B2. End portion 1B1 on the side having the top portion 4 where the adhesive means 5 is disposed
is the supply roll 1 slightly ahead of the other end 1B2.
The configuration is not limited to the above embodiment as long as the standby roll 1B is moved in a slightly inclined state so as to come into contact with the rear end of A. The cylinder mechanism 18 may be contracted so that the other end 13B2 approaches the drive roller 11 after the one end 13B1, or one end or the other end of the front roller 13A may be supported by the cylinder mechanism. It may be configured to contract or expand. .

That is, the adhesive means 5 for connecting the standby roll 1B
The standby roll support roller 13 acts so that the end 1B1 on the side having the top 4 where the top 4 is disposed comes into contact with the rear end of the supply roll 1A relatively slightly earlier than the other end 1B2. It would be good if it was supported by

Note that when the standby roll 1B is supported in an inclined state by the standby roll support roller 13B, the other end 13B2
Although positional deviation may occur in this direction, such positional deviation can be easily countered by providing a guide plate on the side surface of the standby roll 1B.

Next, the supply roll 1A is connected to the standby roll 1B, and after the thin film body 2 is completely supplied, the empty winding core 3 is removed from the supply roll support roller 12 to the winding core receiver 16. (See Figure 8(C)).

After the core 3 has been removed, the standby roll 1B that is currently being supplied has the support arm 14 attached to the standby roll support roller 1.
By moving 3 in the direction of arrow U, it moves onto the supply roll support roller 12, and becomes the supply roller 1A. This movement by the support arm 14 increases the contact area between the drive roller 11 and the thin film body 2, thereby stabilizing the supply.

Then, the next thin film roll 1 is supplied and placed on the standby roll support roller 13 by a supply means (not shown), and becomes the standby roller 1B. By repeating the above steps, the thin film body 2 can be continuously supplied to the post-processing process.

[0047] Next, there is provided a device that can appropriately select the outer surface or the inner surface of the thin film roll 1 and supply it to the post-processing step as the surface without having to rewind it using another winding machine or the like. An example will be described based on schematic side views shown in FIGS. 9(A) to 9(C).

In the connecting device 10 shown in FIG. 9, the supply roll supporting roller 12 is connected to the driving roller 11 by using another connecting device 10 which is provided approximately symmetrically with the driving roller 11 in between. Supply roll support roller 12 on the right side in the drawing
is selected to support the supply roll 1A, and then the standby roll 1B to be supplied to the post-processing process is set to the other one, that is, the supply roll support roller 12 on the left side in FIG. 9 is set to the standby roll support roller 13 (FIG. 9( A), the starting end of the standby roll 1B is connected to the rear end of the supply roll 1A (see FIG. 9(B)). At this time, similar to the embodiment shown in FIG.
In the state shown at 0, the standby roll 1B is connected to the rear end of the supply roll 1A. Regarding FIG. 9, similar to FIG. 8, the configuration of the standby roll support roller 13 is omitted for the sake of explanation, but it has a configuration as shown in FIG. The details are as described above.

By connecting as described above, the inner surface of the thin film body 2 can be supplied to the post-processing step as the surface. Therefore, there is no need to perform a process such as rewinding in advance using another winding machine or the like so that the inner surface becomes the front surface. As in the embodiment shown in FIG. 8, when it is desired to supply the post-processing process with the outer surface as the surface, select the supply roll support roller 12 on the left side of the drawing in FIG. 9 to support the supply roll 1A, and wait. This is possible if the supply roll support roller 12 on the right side of the drawing in FIG. 9 is used as the standby roll support roller 13 for the roll 1B. In this case, the rotation direction of the drive roller 11 is reversed. Also in this case, as shown in FIG. 9(C), after the connection, the standby roll 1B, which has newly become the supply roll 1A, on the standby roll support roller 13 (12) is moved backward in the supply direction indicated by the arrow V. Move the supply roll support roller 12
By moving the drive roller 11 of the thin film body 2 upward,
The contact area of the thin film body can be increased, and the supply of the thin film body can be stabilized.

After the supply roll 1A is connected to the standby roll 1B and the thin film body 2 is completely supplied, the empty core 3 is transferred from the supply roll support roller 12 to the core support 16 on the right side in FIG. (See FIG. 9(C)). In this embodiment, in order to facilitate the removal of the winding core 3, the support arm 14, which is one in FIG. 8, is provided with a joint portion 17 so as to have a two-piece structure. Furthermore, when the supply roll 1A is supported by the supply roll support roller 12 on the left side of the drawing in FIG.
The empty winding core 3 is removed to the winding core receiver 16 on the left side in FIG.

As described above, using the apparatus shown in FIG. 9, one of the two sets of supply roll support rollers 12
Select one to support the supply roll 1A, and the other to support the standby roll 1B, which will be supplied next to the post-processing process, and connect the starting end of the standby roll 1B to the rear end of the supply roll 1A for continuous supply. For example, the outer surface or the inner surface of the thin film body 2 can be appropriately selected and supplied to the post-processing step as the surface without performing a process such as rewinding so that the outer surface and the inner surface are reversed.

[0052]

According to the present invention, a peeling means is provided on the back side of the top of the starting end of the standby roll to improve the peelability from the thin film layer immediately below the top, and the standby roll is removed from the rear end of the supply roll. By moving the connecting adhesive means from the top where it comes into contact with the rear end of the supply roll when connecting to the supply roll, it is possible to avoid the disturbance of the winding of the standby roll that is likely to occur when connecting. Moreover, the standby roll can be reliably connected to the supply roll. Therefore, a plurality of thin film rolls can be sequentially supplied to the post-treatment process without interruption.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of a thin film roll connected according to the present invention.

FIG. 2 is a partially enlarged plan view of FIG. 1;

FIG. 3 is a partially enlarged side view of FIG. 2;

FIG. 4 is a partially enlarged side view showing another embodiment of FIG. 2;

FIG. 5 is a partially enlarged plan view showing another example of the thin film roll.

FIG. 6 is a partially enlarged side view of FIG. 5;

FIG. 7 is a partially enlarged side view showing another embodiment of FIG. 5;

FIGS. 8A to 8C are schematic explanatory diagrams showing an example of the connection method and device of the present invention.

FIGS. 9A to 9C are schematic explanatory diagrams showing an example of the connection method and device of the present invention.

FIG. 10 is a schematic plan view showing a connection state between a supply roll and a standby roll.

FIG. 11 is a schematic side view showing an example of a standby roll support roller.

[Explanation of symbols]

1 Thin film roll 1A supply roll 1B Standby roll 2 Thin film body 2a Second layer of thin film body 3 Winding core 4 Top 5. Connection adhesive means 5A Single-sided adhesive tape 5B Double-sided adhesive tape 6 Hypotenuse part 7 Temporary adhesive means 8 Peeling member 9 Cushion material 10 Connection device 11 Drive roller 12 Supply roll support roller 13 Standby roll support roller 14 Support arm 15 Guide roller group 16 winding core holder 17 Indirect part 18 Cylinder mechanism

Claims (7)

[Claims] Claim 1: A waiting thin film roll whose starting end is cut diagonally with respect to the supply direction is connected to the rear end of the thin film roll that is supplied to the post-processing process using a surface drive method. , a method for connecting thin film rolls that sequentially sequentially supplies a plurality of thin film rolls to the post-processing step,
As the thin film roll on standby, a connecting adhesive means for connecting to the rear end of the thin film roll being supplied is provided on the top of the starting end, and a connecting adhesive means is provided on the back side of the top of the starting end directly on the top. A peeling means having peelability to the lower layer thin film body is provided, and the top of the starting end is temporarily fixed to the thin film body of the layer immediately below the top part by temporary adhesive means having adhesive force weaker than the connection adhesive means. When using a thin film roll having such a configuration and moving the waiting thin film roll to the currently supplied thin film roll for connection, A method for connecting thin film rolls, characterized in that the waiting thin film roll is moved in a slightly inclined state so that its end comes into contact with the thin film roll being supplied slightly earlier than the other end. . 2. A configuration in which the connection adhesive means is a single-sided adhesive tape stuck to the back side of the top of the starting end of the waiting thin film roll with a part of the adhesive surface protruding from the top of the starting end of the waiting thin film roll. The thin film body according to claim 1, wherein the peeling means is configured such that the back surface of the single-sided adhesive tape is a surface that has peelability with respect to the thin film body of the layer immediately below the top that is in contact with the back surface. How to connect roles. 3. The method for connecting thin film rolls according to claim 1, wherein the connecting adhesive means has a structure in which double-sided adhesive tape is stuck to the top surface of the starting end of the thin film roll in standby. 4. The method for connecting thin film rolls according to claim 1, wherein a cushioning material is provided on the back side of the adhesive surface of the connection adhesive means. 5. The method of connecting thin film rolls according to claim 4, wherein the cushioning material is made of substantially the same material as the thin film body. 6. The method for connecting thin film rolls according to claim 4, wherein the cushioning material is made of foamed resin. 7. At the rear end of the thin film roll supplied to the post-processing process by a surface drive method, the starting end is cut obliquely with respect to the supply direction, and the thin film being supplied is attached to the top of the starting end. A thin film body in which a plurality of thin film body rolls are sequentially and continuously supplied to the post-processing step by connecting waiting thin film body rolls that are provided with connection adhesive means for connecting to the rear end portion of the body roll. In the roll connecting device, a standby roll support roller that supports the standby thin film roll connects the end of the thin film roll on the side having the top portion on which the connecting adhesive means is disposed when connecting the thin film body to the other side. A thin film roll connection characterized in that the thin film roll is supported and moved in an inclined state so as to contact the rear end of the thin film roll being supplied slightly earlier than the end of the thin film roll. Device.