JP3227837B2 - Continuous winding method and continuous winding device for sheet - Google Patents

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 in which a plurality of sheet bodies supplied from a manufacturing process are successively wound on a peripheral surface of a plurality of winding cores. The present invention relates to a continuous body winding device.

[0002]

2. Description of the Related Art The manufacturing process of a sheet, for example, a magnetic tape, comprises a magnetic recording layer formed by coating a wide plastic base, for example, a polyester film with a magnetic paint, and a drying process, sandwiching between a metal roll and an elastic roll. The raw material tape is formed through a manufacturing process such as a surface treatment step of polishing the surface by continuously pressing the raw material tape, and the raw material tape is temporarily wound around a winding core. In the winding step of the raw tape, the raw tape supplied from the manufacturing process is wound up to a certain amount on the peripheral surface of the winding core, and then cut by a cutter. The continuous winding is performed by winding the part on the peripheral surface of the next winding core.

[0003] In a conventional raw material tape winding device,
In order to prevent the cutter from damaging the peripheral surface of the take-up core, the cutter is placed at an intermediate position between the supply roll and the take-up core in the manufacturing process, and the running raw tape is cut in the air, and the cutting is performed. The end was taken as the winding end and pressed against the peripheral surface of the next take-up core. Further, in the raw material tape winding device, an adhesive may be applied in advance to the peripheral surface of the winding core in order to reliably wind the cut end of the raw material tape.

[0004]

In the conventional winding method in which the raw tape is cut in the air, the raw tape and the winding core are used when the cut end is wound on the next winding core. Air flows into the peripheral surface of the take-up core, and the air layer acts as a resistance, so that the raw fabric tape that is sequentially wound on the peripheral surface of the take-up core has wrinkles or folded portions, so that a uniform portion is formed. In some cases, it could not be taken up. In addition, the unevenness due to the wrinkles and folding was transferred from the upper layer wound around the winding core to the 30 to 50 layer raw film tape, which was a major cause of product defects.

Further, in the conventional winding method, since the raw tape is cut in the air, there is no support at the cut end, and the operation of catching this and winding it on the peripheral surface of the next winding core is performed. Sometimes it doesn't work. For this reason, in the conventional winding method, the apparatus must be stopped each time, the cut end must be pressed against the peripheral surface of the winding core, and then the apparatus must be restarted. I was coming. Furthermore, in the conventional winding method, when the raw material tape runs, there is a problem that the adhesive applied to the peripheral surface of the winding core is stained by the adhesive, resulting in a defective product.

Accordingly, the present invention aims to greatly improve the yield by eliminating the occurrence of wrinkles and folds during winding, thereby greatly improving the yield. As a part, the continuous winding method and the continuous winding device for the sheet member are intended to be reliably wound on the peripheral surface of the next winding core, thereby enabling continuous operation and improving the operation rate. It is intended to provide.

[0007]

According to the present invention, there is provided a method for continuously winding a sheet body, which comprises spraying a volatile liquid onto a peripheral surface of a winding core prepared next and spraying the sheet body. By running while pressing against the peripheral surface of the take-up core by the pressing roller member, it is stuck on the peripheral surface of the take-up core in a state of being in close contact, and each of the pair of cutters exceeds the center in the width direction of the take-up core. The sheet body traveling in a state of being stuck to the peripheral surface of the winding core by moving from the position to the opposite side to the final end of the upper winding core on the peripheral surface of the winding core and the next position And the winding end is wound on the peripheral surface of the next winding core as a winding end as it is.

Further, in the continuous winding device for a sheet body according to the present invention, a spraying means for spraying a volatile liquid onto a peripheral surface of a winding core prepared at a next winding position, and a supply unit for supplying the liquid from a supply unit. A pressing roller that presses the sheet body that has been run and is pressed against the peripheral surface of the next winding core so that the volatile liquid is stuck to the peripheral surface of the next winding core that has been sprayed. A member, a tension roller member that pairs with the pressing roller member and presses the sheet member onto the peripheral surface of the next winding core, and a state in which the rotating body of the next winding core is adhered to the rotating surface. And a pair of cutters that move from the position beyond the center in the width direction of the sheet body traveling in the opposite direction to each side and cut the sheet body on the peripheral surface of the take-up core.

A continuous winding device for a sheet member is provided between a pressing roller member and an upper winding core and a next winding core, and forms a pair with the pressing roller member so as to form a sheet member on the next winding member. A tension roller member that presses on the peripheral surface of the take-up core, and a pair of cutters that are positioned between the press roller member and the tension roller member corresponding to the next take-up core, form a next take-up It is mounted on a continuous winding guide device that is moved in a direction approaching and separating from the take-up core and in a direction along the traveling path.

[0010]

According to the method for continuously winding a sheet body and the apparatus for continuously winding a sheet body according to the present invention described above, the sheet body traveling on the peripheral surface of the winding core prepared at the next winding position is provided. The peripheral surface of the winding core is sprayed with a volatile liquid and pressed by a pressing roller member to remove air between the winding core and the peripheral surface of the winding core. Travel on the surface. The pair of cutters that cut the traveling sheet body attached to the peripheral surface of the take-up core move from the position beyond the center in the width direction of the sheet body to the opposite side and cut the sheet body. so,
The cutting resistance to the sheet body is reduced, so that air is prevented from flowing between the sheet body and the peripheral surface of the winding core, and wrinkling or folding is prevented.

The sheet body runs on the peripheral surface of the winding core in a state in which the sheet member is pressed by a pressing roller member to be in close contact with the peripheral surface of the winding core in a wet state by spraying a volatile liquid, and Since it is cut by a pair of cutters in the state, it does not peel off from the peripheral surface of the winding core in the middle, and the cut end becomes the winding end as it is and is wound on the peripheral surface of the next winding core It is. Therefore, the continuous winding method of the sheet body and the continuous winding apparatus of the sheet body can be suitably applied to an extremely thin magnetic tape.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The continuous winding device shown as an example is a continuous winding device for a wide raw material tape 1 that is cut into a narrow width by a cutting process to form a magnetic tape. The raw material tape 1 that has passed through the above manufacturing process is continuously supplied. The continuous winding device includes a plurality of winding cores 2A, 2B,... Provided on a transport path H parallel to a running path L of the raw material tape 1, and a plurality of winding cores 2A, 2B. And a winding guide device 4 for continuously performing the winding operation of the anti-tape 1.

[0013] The continuous winding device includes a first winding core 2A.
Is rotated counterclockwise in FIG. 2 by the motor 3A in synchronization with the running speed of the raw material tape 1, and the raw material tape 1 is sequentially wound on its peripheral surface. When a predetermined amount of the raw fabric tape 1 is wound by the first winding core 2A, the continuous winding device detects the fact and sends a full signal. In the continuous winding device, a cutting operation of the raw material tape 1 described later is performed by the full signal, and the cut end portion is set as a next winding end portion, and the second (secondary) driven by the motor 3B is rotated. The continuous winding operation of the raw material tape 1 is performed by winding the raw material tape 1 into the winding core 2B.

The continuous take-up device sends the above-mentioned full signal when the supply amount of the raw material tape 1 or the outer diameter of the take-up core 2A on which the raw material tape 1 has been wound becomes a predetermined outer diameter. It is detected and transmitted by the detecting means for detecting. The next take-up core 2B is subjected to a surface treatment such as iron or hard chrome plating, ceramic coating, etc., since the cutter 10 is directly applied to the peripheral surface during the cutting operation of the raw material tape 1 described later. It is formed so as not to be easily scratched by rubbing.

The continuous winding guide device 4 moves in a direction approaching and leaving the raw material tape running path L and in a parallel direction, that is, in the vertical direction and the horizontal direction in FIG. 2, based on the above-mentioned full signal. Be operated. The continuous winding guide device 4 includes a tension roller member 5 protruding downward.
And a pressing roller member 6 and a pair of cutters 10A and 10B.
And The tension roller member 5 and the pressing roller member 6 have an axial length substantially equal to the length of the winding core 2B and an outer peripheral portion formed of an elastic material such as rubber. It is supported by the continuous winding guide device 4 in the transverse direction. Note that the tension roller member 5 is located lower than the pressing roller member 6.

When the continuous winding guide device 4 is operated at a position close to the raw material tape running path L, the tension roller member 5 and the pressing roller member 6 move the corresponding winding cores 2B on opposite sides. Surface, that is, the winding peripheral surface of the raw material tape 1 and the peripheral surface on the supply side are located close to each other. The pressing roller member 6 is rotatably supported by the bracket member 7. The bracket member 7 is rotatably supported by the winding guide device 4 and has an arm 7a connected to a rod 8a of a driving unit 8 such as an air cylinder or an electromagnetic arc tutor on one side. The bracket member 7 is positioned by the stopper 9 at the rotation position where the pressing roller member 6 maintains the parallelism with the winding core 2 as shown in FIG.

The pressing roller member 6 comes into contact with the winding core 2B at a position where the continuous winding guide device 4 approaches the raw material tape running path L, and is pushed back to the right in FIG. As shown in the drawing, the pressing roller member 6 applies a reaction force to the bracket member 7 via the rod 8a and the arm 7a by the output of the driving means 8 so as to press the nip force against the peripheral surface of the winding core 2. give.

When the continuous take-up guide device 4 approaches the raw material tape running path L, the cutters 10A and 10B are disposed on the peripheral surface of the take-up core 2B at an intermediate position between the tension roller member 5 and the pressing roller member 6. Corresponding position.
As shown in FIG. 4, the cutters 10A and 10B are separated from each other in the running direction of the raw material tape 1 so as to be spaced from the center of the raw material tape 1 in the width direction. And is provided in the continuous winding guide device 4. In addition, these cutters 10A and 10B
Although not shown, the peripheral surface of the take-up core 2B is supported via an appropriate cam mechanism or damper mechanism or the like so that the peripheral surface of the take-up core 2B can be applied without any impact, and the driving media are used to face each other. Is moved to the opposite side beyond the center line M of.

In the conveying path H of the winding core 2B, there is provided a spray nozzle 11 of spraying means for spraying a suitable amount of a volatile liquid, for example, ethyl alcohol 12. The spray nozzle 11 is provided in a position corresponding to a second winding core 2B prepared next to the first winding core 2A during the winding operation of the raw material tape 1. The spraying means is operated by the above-mentioned full signal, and the spray nozzle 11
, An appropriate amount of ethyl alcohol 12 is uniformly sprayed on the peripheral surface of the second winding core 2B. In the present embodiment, the ethyl alcohol 12 is sprayed from the spray nozzle 11, but another liquid having volatility that does not affect the human body or the raw fabric tape 1 may be used.

In the continuous winding device for the raw material tape 1 constructed as described above, as shown in FIG. 2, the raw material tape 1 continuously supplied from the manufacturing process is processed by the motor 3A. The tape is sequentially wound around a first winding core 2A driven in a counterclockwise direction in FIG. And in the continuous winding device, the first
When a predetermined amount of the raw material tape 1 is wound on the winding core 2A, a full signal is sent out by a detection means (not shown),
The second winding core 2B starts rotating by the motor 3B in synchronization with the supply speed of the raw material tape 1, and the continuous winding guide device 4 moves so as to be positioned corresponding to the second winding core 2B. Is done.

After the continuous winding guide device 4 has been moved to a position corresponding to the second winding core 2B, the entire winding guide device 4 is further moved downward in FIG. In this state, the continuous winding guide device 4 advances the tension roller member 5 and the pressing roller member 6 into the raw material tape running path L so as to sandwich the peripheral surface of the second winding core 2B. Is in contact with the running raw material tape 1 and pressed downward. As a result, as shown in FIGS. 1 and 3, the raw material tape 1 is stretched between the tension roller member 5, the second winding core 2 </ b> B and the pressing roller member 6,
Further, it is pressed against the peripheral surface of the second winding core 2B and travels over substantially half a circumference.

The raw tape 1 is sandwiched between the peripheral surface of the second winding core 2B and the pressing roller member 6 and runs on the peripheral surface of the second winding core 2B. On the other hand, the second winding core 2B is in a state in which the entire peripheral surface is wet by spraying an appropriate amount of ethyl alcohol 12 from the spray nozzle 11.

Accordingly, the raw material tape 1 is pressed by the pressing roller member 6 onto the peripheral surface of the second take-up core 2B and adheres to the peripheral surface of the second take-up core 2B. The air that has existed between them is also pushed out, so that they come into close contact with each other. Further, since the tension roller member 5 is positioned below the pressing roller member 6 as described above,
As shown in (2), the vehicle runs while being wound around the peripheral surface of the second winding core 2B at a predetermined angle.

The raw material tape 1 has a second winding core 2B
The cutters 10A and 10B are gently applied via the cam mechanism in a state where the vehicle travels closely on the peripheral surface of. As shown in FIG. 4, the cutters 10 </ b> A and 10 </ b> B are respectively moved to the opposite sides beyond the center line M of the raw material tape 1 by the driving mechanism, so that the second winding core 2 is moved.
On the peripheral surface of B, the raw material tape 1 is cut. Also,
As shown in FIG. 4, the cutters 10A and 10B move in the directions of arrow B and arrow C, respectively, with respect to the web tape 1 traveling in the direction of arrow A.
Is cut in a triangular shape as shown by a broken line in FIG. As a result, the raw material tape 1 is divided into a final end portion 1A of the first winding core 2A and a winding end portion 1B for the second winding core 2B.

As described above, the continuous winding device cuts the raw material tape 1 by moving the raw material tape 1 to the opposite side beyond the center line M thereof. Even if 1 is extremely thin, it is possible to prevent the occurrence of phenomena such as wrinkling or the formation of a folded portion so that cutting is performed. Further, the continuous take-up device places the raw fabric tape 1 on the peripheral surface of the second take-up core 2B, which is sprayed with the ethyl alcohol 12 from the spray nozzle 11 and the entire peripheral surface is wet, by a pressing roller. Member 6
, So that the wound portion 1B cut off is prevented from peeling off, and the second winding core 2B ensures the separation. Make sure that winding is performed.

In the above-described embodiment, an example is described in which the present invention is applied to a continuous winding device for a raw material tape which forms a magnetic tape by being cut into a narrow width. The present invention can be widely applied to a continuous winding device for continuously feeding a sheet having dimensions.

[0027]

As described above in detail, according to the continuous winding method and the continuous winding apparatus for a sheet according to the present invention, the sheet is cut on the peripheral surface of the winding core. For this reason, the cut end is taken up as it is on the take-up core without being peeled off as a take-up end, and the occurrence of a phenomenon that the sheet body is wrinkled or folded at the time of cutting is prevented. The body can be wound up on the winding core in good condition. Further, according to the continuous winding method and the continuous winding device for the sheet body, the cut end is also reliably wound in a state in which the cut end portion is in close contact with the peripheral surface of the winding core without air. By doing so, continuous winding with a very low failure probability is performed. Therefore, according to the continuous winding method of the sheet body and the continuous winding apparatus of the sheet body, the yield rate and the operation rate can be greatly improved, and the automatic winding can be continuously performed even for an extremely thin sheet body. Is possible.

[Brief description of the drawings]

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

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

FIG. 3 is a schematic configuration diagram for explaining the operation of the continuous winding device for the raw material tape.

FIG. 4 is a view for explaining an operation of cutting the raw material tape in the continuous raw material tape continuous winding device.

[Explanation of symbols]

1. Raw tape, 2A, 2B winding core, 3A, 3B
Motor, 4 continuous winding guide device, 5 tension roller member, 6 pressing roller member, 10A, 10B cutter, 11 spray nozzle

Claims (3)

(57) [Claims] 1. A continuous winding method for a sheet body in which a sheet body is continuously wound around a plurality of winding cores sequentially, wherein a volatile liquid is sprayed on a peripheral surface of a winding core prepared next. above with the sheet member by pressing the roller member
By running while pressing against the peripheral surface of the take-up core, it is stuck on the peripheral surface of the take-up core in a state in which it is in close contact with the take-up core. The sheet body traveling in a state of being moved from the side to the opposite side and sticking to the peripheral surface of the winding core is disposed on the peripheral surface of the winding core with the final end of the upper winding core.
Cut to the winding end of the next winding core, and
The winding end is directly wound around the peripheral surface of the next winding core.
A continuous winding method for a sheet body, wherein the sheet body is wound as an end . 2. A continuous winding device for a sheet member, wherein the sheet member is continuously wound around a plurality of winding cores, wherein the peripheral surface of the winding core prepared at a next winding position is volatilized. a spray means for spraying the sex of the liquid, is arranged so as to face the traveling path of the supply portion side with respect to the winding core of the next order, the sheet traveling are supplied from the supply portion of the next order a pressing roller member that pasted in close contact with the peripheral surface of the next order winding core that is sprayed with volatile liquid by pressing the peripheral surface of the winding core, the pressing roller member pair The above
Tensioning the sheet body onto the peripheral surface of the next winding core.
The width of the sheet member which is disposed to face the rotating next take-up core and which is run with the peripheral surface of the next take-up core stuck on the peripheral surface thereof. A pair of cutters for moving the sheet body to opposite sides from a position beyond the center in the direction and cutting the sheet body on the peripheral surface of the winding core. apparatus. 3. The next winding of the sheet member in a pair with the pressing roller member, and positioned between the upper winding core and the next winding core. The tension roller member pressing on the peripheral surface of the core, and the pair of cutters positioned between the pressing roller member and the tension roller member corresponding to the next take-up core, 3. The continuous winding device for a sheet body according to claim 2, wherein the continuous winding device is mounted on a continuous winding guide device which is moved in a direction approaching and separating from the winding core and along a traveling path.