JPH06127764A - Continuous taking-up of sheet material and device therefor - Google Patents

Abstract

PURPOSE:To improve the yield and operation rate by eliminating the generation of the unevenness due to the creasses and turning back of a sheet material which is continuously supplied, and surely winding up the cut edge part. CONSTITUTION:A volatile liquid 12 is jetted onto the peripheral surface of a taking-up core 2A which is prepared in the next rank, and a sheet body 1 which is continuously supplied is attached in the closely attached state though the traveling in pressed state by a pressing roller member 6 on the peripheral surface of the taking-up core 2A, and the sheet is cut by shifting a pair of cutters 10A and 10B to the opposed side from the position exceeding the near center in the width direction of the taking-up core 2A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous winding method for a sheet body and a sheet for continuously winding the plurality of sheet bodies supplied from the manufacturing process on the peripheral surface of a winding core prepared in sequence. The present invention relates to a continuous body winding device.

[0002]

2. Description of the Related Art A sheet body, for example, a magnetic tape comprises a wide plastic base, for example, a polyester film coated with a magnetic paint to form a magnetic recording layer.
It is formed as a raw tape by a manufacturing process such as a drying process, a surface treatment process in which it is continuously pressed between a metal roll and an elastic roll to polish the surface, and this raw tape is wound on a temporary winding core. To be In the winding process of the raw tape, the raw tape supplied from the manufacturing process is wound on the peripheral surface of the winding core up to a certain amount and then cut by a cutter, and the cut end portion is wound at the winding end. As a part, it is wound on the peripheral surface of the next winding core, so that continuous winding is performed.

In the conventional original tape winding device,
In order to prevent the cutter from damaging the peripheral surface of the winding core, the cutter is placed at an intermediate position between the supply roll and the winding core in the manufacturing process, and the running raw tape is cut in the air and its cut end is also cut. The part was taken as the winding end and was pressed against the peripheral surface of the next winding core to be wound. Further, in order to reliably wind up the cut end of the raw tape, an adhesive has been applied to the peripheral surface of the winding core in advance.

[0004]

In the conventional method in which the above-mentioned raw tape is cut in the air, when the cut end is wound on the next winding core, the raw tape and the winding core are wound. Air flows in between the peripheral surface and this air layer, which acts as a resistance, causing wrinkles and folds in the raw tape that is sequentially wound on the peripheral surface of the winding core, resulting in uniform winding. I couldn't get it. Further, the unevenness due to the wrinkles and the folding is transferred to the original tape of the upper layer 30 to 50 layers wound on the winding core, which is a major cause of product defects.

Further, since the raw tape is cut in the air, the cut end portion has no support, and the operation of catching this and winding it on the peripheral surface of the next winding core may not be successful. For this reason, the apparatus must be stopped each time, the cut end is pressed against the peripheral surface of the winding core to be wound, and then the apparatus must be restarted, resulting in a decrease in the operating rate. Furthermore, there is a problem that the adhesive applied to the peripheral surface of the winding core permeates the wound raw tape to destroy the magnetic layer, resulting in defective products.

Therefore, according to the present invention, the yield is greatly improved by eliminating unevenness due to wrinkles and folding at the time of winding, and the cut end of the sheet member such as the raw tape is wound at the winding end. It is intended to provide a continuous winding method of a sheet member and a continuous winding device of a sheet member, which are surely wound around the peripheral surface of a winding core as a part, thereby enabling continuous operation and improving the operating rate. It is what

[0007]

A method for continuously winding a sheet body according to the present invention, which has achieved this object, is to spray a volatile liquid onto the peripheral surface of a winding core prepared next, and at the same time By advancing while pressing with the pressing roller member, it is stuck in close contact with the peripheral surface, and the pair of cutters are moved from the position beyond the center in the width direction of the winding core to the opposite side. It is characterized in that the sheet body running while being attached to the peripheral surface of the winding core is cut.

Further, the continuous winding device for a sheet according to the present invention is provided with a spraying means for spraying a volatile liquid onto the peripheral surface of the winding core prepared at the next winding position, and a supplying portion. A pressing roller member adapted to be attached in a state of being in close contact with the peripheral surface of the next-order winding core sprayed with a volatile liquid by pressing the running sheet body, and the rotating next-order winding member. It is characterized by comprising a pair of cutters that move from the position beyond the center in the width direction of the sheet body that is running while being stuck on the peripheral surface of the winding core to the opposite lateral sides to cut the sheet body. And

[0009]

According to the continuous winding method for a sheet and the continuous winding apparatus for a sheet according to the present invention described above, the sheet running on the peripheral surface of the winding core prepared at the next winding position is , The volatile liquid is sprayed onto the peripheral surface and is pressed by the pressing roller member to remove the air between the peripheral surface of the winding core and to run in close contact with the peripheral surface of the winding core. . The pair of cutters attached to the peripheral surface of the winding core to cut the traveling sheet body move from the position beyond the center of the width direction of the sheet body to the opposite side to cut the sheet body. The cutting resistance is small, and it is possible to prevent air from flowing into the space between the sheet body and the peripheral surface of the winding core and to prevent wrinkles or folds.

The sheet body runs on the peripheral surface of the winding core while being pressed and closely contacted by the pressing roller member to the peripheral surface of the winding core which is wet by spraying the volatile liquid. Since it is cut by the pair of cutters in this state, it is not peeled off in the middle and is directly wound on the winding core as the winding end. Therefore,
It can also be applied to extremely thin magnetic tape.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. The example shows a continuous winding device for a wide raw fabric tape 1 which forms a magnetic tape by cutting into a narrow width, and the raw fabric tape 1 is manufactured by a manufacturing process such as a coating process and a surface treatment process. Example A raw tape is continuously fed to a continuous winding device. This continuous tape winding device is provided with a running path L for the raw tape 1.
A plurality of take-up cores 2A, 2B, ..., which are located on a conveying path H parallel to the take-up core 2 and a take-up guide for continuously performing the take-up operation of the original tape 1 by these take-up cores 2. And a device 4.

The first winding core 2A is rotationally driven counterclockwise in FIG. 2 in synchronization with the running speed of the original tape 1 by a motor 3A, and the original tape 1 is sequentially wound on its peripheral surface. To go. Then, the first winding core 2A
Thus, when a predetermined amount of the original tape 1 is wound, the fact is detected and a full signal is sent. By the full signal, a cutting operation of the original tape 1 which will be described later is performed, and the cut end portion is taken up as the next winding end portion and wound around the second winding core 2B which is rotationally driven by the motor 3B. , Continuous winding operation is performed.

The full signal sent by winding a predetermined amount of the raw tape 1 on the winding core 2 is the supply amount of the raw tape 1 or the winding core 2 wound with the raw tape 1. The detection is performed by a detection unit or the like that detects that the outer diameter of the has reached a predetermined outer diameter. In addition, the winding core 2
Since the cutter 10 is directly applied to its peripheral surface during the cutting operation of the raw tape 1 which will be described later, it is formed so as not to be easily scratched by applying a surface treatment such as iron or hard chrome plating or ceramic coating. Has been done.

Based on the full signal, the continuous winding guide device 4 is operated in a direction parallel to the original tape running path L and a direction parallel to the original tape running path L, that is, the vertical and horizontal directions in FIG. A tension roller member 5, a pressing roller member 6 and a pair of cutters 10 protruding downward.
A and 10B are provided. The tension roller member 5 and the pressing roller member 6 have an axial length substantially equal to the length of the winding core 2 and an outer peripheral portion formed of an elastic material such as rubber. It is supported by the winding guide device 4 in a transverse direction. In addition,
The tension roller member 5 is located below the pressing roller member 6.

Then, the tension roller member 5 and the pressing roller member 6 are opposed to each other on the peripheral surface of the winding core 2 when the winding guide device 4 is operated to a position close to the original tape running path L. , Ie original tape 1
And extends in the vicinity of the winding-side peripheral surface and the supply-side peripheral surface, respectively. The pressing roller member 6 is rotatably supported by a bracket member 7. The bracket member 7 is rotatably supported by the winding guide device 4, and one side thereof has an air cylinder or an electromagnetic arc actuator. An arm 7a connected to the rod 8a of the driving means 8 such as the above is provided.

The pressing roller member 6 is provided at a position where the winding guide device 4 approaches the original tape running path L.
As the drive means 8 is operated and the bracket member 7 is rotated via the rod 8a and the arm 7a, the bracket member 7 is moved to a position where it is pressed against the peripheral surface of the winding core 2 as shown in FIG. The rotation position of the bracket member 7 that holds the pressing roller member 6 in pressure contact with the peripheral surface of the winding core 2 is determined by the stopper 9.

The cutters 10A and 10B are positioned at the intermediate position between the roller members 5 and 6 at the position where the winding guide device 4 is close to the original tape running path L and correspond to the peripheral surface of the winding core 2. These cutters 10A and 10B are shown in FIG.
As shown in FIG. 1, the winding guide device 4 is separated from the front-back direction with respect to the running direction of the raw tape 1 and positioned so as to be positioned slightly laterally to the center of the raw tape 1 in the width direction. Is equipped with. Also, these cutters 10
Although not shown, A and 10B are supported via an appropriate cam mechanism or damper mechanism or the like so as to be applied to the peripheral surface of the winding core 2 without impact, and the directions in which they face each other by the drive mechanism, in other words, For example, the original tape 1 is moved to the opposite side beyond the center line M.

In the conveying path H of the winding core 2, a spray nozzle 11 as a spraying means for spraying an appropriate amount of a volatile liquid, for example, ethyl alcohol 12, is arranged. This spray nozzle 11 is used for the first operation during the winding operation of the original tape 1.
It is arranged at a position corresponding to the second winding core 2B prepared next to the winding core 2A. The spraying means is operated by the full signal, and sprays a proper amount of ethyl alcohol 12 from the spray nozzle 11 onto the peripheral surface of the second winding core 2B uniformly. Although ethyl alcohol 12 is sprayed from the spray nozzle 11 in this embodiment, other volatile liquid that does not affect the human body or the raw tape 1 may be used.

In the continuous web tape winding device of the embodiment having the above-described structure, as shown in FIG. 2, the web tape 1 continuously supplied from the manufacturing process is the motor 3A.
Is sequentially wound around the first winding core 2A driven counterclockwise in the figure in synchronization with the running speed of the original tape 1. Then, when a predetermined amount of the original tape 1 is wound around the first winding core 2A, a full signal is sent out by a detection means (not shown), and the second winding core 2B is driven by the motor 3B.
By this, the rotation is started in synchronization with the supply speed of the original tape 1, and the winding guide device 4 is operated so as to be positioned corresponding to the second winding core 2B.

After the winding guide device 4 is positioned corresponding to the second winding core 2B, the entire winding guide device 4 further moves downward in FIG. 2, and the tension roller member 5 and the pressing roller member 6 are respectively moved to the first position. It advances into the raw fabric tape running path L so as to sandwich the peripheral surface of the winding core 2B of No. 2 and contacts the running raw fabric tape 1 and presses it downward. As a result, as shown in FIGS. 1 and 3, the raw tape 1 is in the state of being traversed between the tension roller member 5, the second winding core 2B and the pressing roller member 6, and the second tape.
The winding core 2B travels on the circumferential surface of the winding core 2B for about half a circumference.

Further, when the driving means 8 is operated, the pressing roller member 6 passes through the rod 8a, the arm 7a and the bracket member 7 as shown by the arrow in FIG.
It rotates clockwise and comes into pressure contact with the peripheral surface of the second take-up core 2B, and the original tape 1 is sandwiched between the peripheral surface of the second take-up core 2B and the pressing roller member 6. 2 winding core 2B
On the circumference of. On the other hand, the peripheral surface of the second winding core 2B is sprayed with an appropriate amount of ethyl alcohol 12 from the spray nozzle 11, and the entire peripheral surface is in a wet state.

Therefore, the original tape 1 pressed against the peripheral surface of the second winding core 2B by the pressing roller member 6
Is attached to the peripheral surface of the second winding core 2B, and the air existing between the original tape 1 and the peripheral surface of the second winding core 2B is also pushed out by the pressing roller member 6. Therefore, it is in a close contact state. Further, as described above, since the tension roller member 5 is located below the pressing roller member 6, as shown in FIG. 3, the raw tape 1 has the peripheral surface of the second winding core 2B. Drive with a certain angle wrapped around it.

The cutters 10A and 10B are gently applied to the original tape 1 which runs closely on the peripheral surface of the second winding core 2B via a cam mechanism. Then, as shown in FIG. 4, the cutters 10A and 10B are moved to the opposite side over the center line M of the original tape 1 by the driving mechanism, respectively, so that the second winding core 2B is moved.
The original tape 1 is cut on the peripheral surface of the. Further, as shown in FIG. 4, the cutters 10A and 10B move in the directions of arrows B and C with respect to the raw tape 1 traveling in the direction of arrow A, so that the cut end portion of the raw tape 1 is As shown by the broken line in the figure, the first winding core 2A has a triangular shape.
Is divided into a final end portion 1A and a winding end portion 1B for the second winding core 2B.

As described above, by cutting the cutters 10A and 10B so as to move to the opposite side beyond the center line M, even if the original tape 1 is extremely thin, wrinkles may occur. Alternatively, the occurrence of a folded portion is prevented. Further, in the raw tape 1, the pressing roller member 6 is brought into pressure contact with the peripheral surface of the second winding core 2B whose entire peripheral surface is wet by spraying the ethyl alcohol 12 from the spray nozzle 11. Since it is wound in a close contact from the position to the cutting position,
The phenomenon that the cut winding end portion 1B is peeled off is also prevented, and reliable winding by the second winding core 2B is performed.

In the above-described embodiment, the description has been given by taking the example in which it is applied to the continuous winding device for the raw tape which forms the magnetic tape by being cut into a narrow width, but it is not limited to the raw tape and has a predetermined width. The present invention can be widely applied to a continuous winding device for a sheet body having a size and continuously supplied.

[0026]

As described in detail above, according to the continuous winding method for a sheet and the continuous winding apparatus for a sheet according to the present invention, the sheet is wrinkled or folded at the time of cutting. The occurrence of such a phenomenon is prevented,
The sheet body can be wound on the winding core in good condition. Further, since the cut end portion is also reliably wound in a state in which the new winding core is tightly adhered without wrinkles or the like, the continuous winding is performed. Therefore, the yield rate or the operating rate can be significantly improved. Further, continuous automatic winding is possible even for an extremely thin sheet body.

[Brief description of drawings]

FIG. 1 is a perspective view of a principal part for explaining a schematic configuration of a continuous tape winding device shown as an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of the continuous tape winding device.

FIG. 3 is a schematic configuration diagram illustrating an operation of the continuous tape winding device.

FIG. 4 is a diagram illustrating a cutting operation of the raw tape in the continuous tape winding device.

[Explanation of Codes] 1 ... Raw tape 2 ... Winding core 3 ... Motor 4 ... Winding guide device 5 ... Tension roller member 6 ... Pressing Roller member 10 ... Cutter 11 ... Spray nozzle

Claims (2)

[Claims] 1. A continuous winding method of a sheet body, wherein a sheet body is continuously wound around a plurality of winding cores in sequence, and a volatile liquid is sprayed on the peripheral surface of the winding core prepared next. At the same time, the sheet member is made to run while being pressed by the pressing roller member so that the sheet member is attached in close contact with the peripheral surface, and the pair of cutters face each other from the position beyond the center in the width direction of the winding core. A continuous winding method for a sheet body, which is characterized in that the sheet body running in a state in which the sheet body is moved to one side and stuck to the peripheral surface of the winding core is cut. 2. A continuous winding device for a sheet body, wherein a sheet body is successively wound around a plurality of winding cores, and a volatile liquid is formed on the peripheral surface of the winding core prepared at the next winding position. By spraying the spraying means for spraying and the running sheet body supplied from the supply part, the volatile liquid is adhered to the peripheral surface of the next-mentioned winding core in close contact with the peripheral surface. The pressure roller member and the rotating next-mentioned winding core are stuck to each other on the peripheral surface of the sheet body which is running, and the sheet body is moved from the position beyond the center in the width direction of the sheet body to the opposite side. A continuous winding device for a sheet body, comprising a pair of cutters for cutting.