JP2008030940A - System for controlling rotating speed of tapered drum product winding device and slitter device using this control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for controlling rotating speed of a tapered drum, and to provide a product winding device, a product winding method, a slit processing system and its method, suitable for an expansive product rich in flexibility such as nonwoven fabric of low basis weight by using this control system. <P>SOLUTION: This system for controlling rotating speed of the tapered drum, the product winding device, a slitter device, a winding method and a slitting method using this device, are provided by connecting at least a pair of drums having a tapered part in the tapered part by a belt, by oppositely arranging the tapered part in the inverse direction, while their axes are held parallel. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a taper drum rotation speed control system, and a product winding device and a slitter device using the same. More specifically, the present invention relates to a taper drum rotation speed control system suitable for winding a flexible product, and a product winding device and a slitter device using the same.

  In recent years, non-woven fabrics have been used for various purposes by taking advantage of their breathability and flexibility, and their uses are expanding. In particular, a nonwoven fabric made of a thermoplastic resin typified by polyolefin such as polypropylene is water-resistant and has excellent breathability and flexibility. It is used.

  However, it is difficult to slit a non-woven fabric with a low basis weight used for sanitary materials in order to use it in a narrow width, so it is complicated and work efficiency to obtain a product with a desired width. However, it was forced to go through a process with low productivity. For example, when slitting a flexible and stretchable product such as a low-weight nonwoven fabric, taking into account the shrinkage after winding, slit the product wider than the desired product width, and then measure the width of the wound product A complicated and inefficient work method is employed in which a product having a desired width is slit again.

  The inventor of the present invention has arrived at the present invention as a result of diligent efforts to develop a technology that enables slit processing from a raw material having a high flexibility to expand and contract to a narrow width product with high work efficiency.

The present invention provides a product winding apparatus and a product winding method that can be suitably used for a product that is flexible and stretchable, such as a low-weight nonwoven fabric.
The present invention also provides an apparatus and a method for slitting a product that is flexible and stretchable, such as a low-weight nonwoven fabric, with high work efficiency.
The present invention further provides a taper drum rotational speed control system used in the product winding apparatus and slit processing apparatus of the present invention.

  In the present invention, at least a pair of drums having a tapered portion are installed such that the axes are parallel, the tapered portions are opposed, and the directions of the tapers are reversed, and the drums are connected by a belt at the tapered portion. A taper drum rotational speed control system is provided.

  The present invention also provides a product winding device in which the winding drum is composed of a rear roll and a front roll, and the taper drum rotation speed control system is configured between the rear roll and the front roll.

  The product winding device is a device including at least a winding drum and a driving roll, and the product winding device in which a rear roll and a driving roll are connected is a preferable aspect of the present invention.

  The product winding device is a device including a winding drum, a driving roll, and a belt shooter for product delivery, and the product winding device in which the rear roll and the drive roll of the belt shooter are connected is a preferred aspect of the present invention. It is.

  The present invention further includes a slitter device including at least a slitter unit and a winding drum, wherein the taper drum rotation speed control system described above is configured between the rear roll and the front roll of the winding drum, and the rear roll and the slitter unit below the slitter unit. A slitter device to which a blade roll is connected is provided.

  The slitter device is a device including an original fabric feed portion, a driving roll, a slitter portion, and a winding drum, and a slitter device in which a rear roll and a driving roll are further connected is a preferred embodiment of the present invention.

  In the preferred embodiment of the present invention, the material feed section includes a belt shooter, and the drive roll of the belt shooter is connected to the rear roll of the take-up drum. is there.

  The slitter device in which the taper drum rotation speed control system described above is configured between the belt shooter drive roll and the tension pickup roll behind the belt shooter is a preferred aspect of the present invention.

  The present invention provides a product winding method using any of the product winding apparatuses described above.

  The present invention also provides an original fabric slitting method using any of the slitter devices described above.

According to the present invention, there is provided a taper drum rotation speed control system that can be suitably used for a product winding device and a slitter device.
According to the present invention, a product winding apparatus employing the tapered drum rotational speed control system of the present invention and a product winding method using the same are provided.
According to the present invention, a slitter device employing the tapered drum rotational speed control system of the present invention and a product winding method using the slitter device are provided.
The apparatus and method provided by the present invention are preferably used for a raw fabric of a low-weight nonwoven fabric.

The present invention provides a tapered drum rotational speed control system.
The present invention also provides a product winding device including at least a winding drum and a driving roll, wherein the taper drum rotation speed control system is configured between a rear roll and a front roll of the winding drum, and the rear roll and the driving roll A product winding device to which the two are connected and a product winding method using the same are provided.
The present invention further includes a slitter device including at least a slitter unit and a winding drum, wherein the taper drum rotation speed control system described above is configured between the rear roll and the front roll of the winding drum, and the slitting unit below the rear roll and the slitter unit A slitter device to which blade rolls are connected and a method for slitting a raw material using the same.

  The taper drum rotation speed control system according to the present invention is such that a pair of drums having a tapered portion are installed such that the axes are parallel, the tapered portions are opposed, and the directions of the tapers are reversed. In which a rotational speed controllable drum is connected and a rotational speed between a group of drums in which one or two or more such a pair of drums is configured is controllable. It is.

  In the present invention, the taper drum rotation speed control system refers to a group of drums capable of controlling the rotation speed as described above.

The product winding device and the product winding method, the slit processing device, and the slit processing method of the present invention employ the tapered drum rotational speed control system of the present invention.
In the taper drum rotation speed control system of the present invention, the drum having the taper portion is more than at least a pair of drums installed so that the axes are parallel, the taper portions are opposite, and the directions of the tapers are reversed. It is configured. In a pair of drums installed in this way, the outer tangents in plan view are parallel to each other, and the inner tangents are also parallel to each other at the same time. The pair of drums is connected by a belt, preferably a flat belt, and the rotation of one drum is transmitted to the other drum through the belt. Each drum may have other shape portions such as a cylindrical shape in addition to the tapered portion.

  In the taper drum rotation speed control system of the present invention, the taper angle of the taper portion of the drum is desirably about 1 to 3 degrees, more preferably about 2 to 2.5 degrees. The ratio of the upper base to the lower base is preferably about 0.90 to 0.98, preferably about 0.93 to 0.95, although the tapered portion is a trapezoid in plan view, but is limited to these values. It is not a thing.

  When the belt position is constant between such a pair of drums, the rotational speed of the drum is constant while maintaining an inversely proportional relationship with the circumference of the tapered portion at the belt position. At this time, when the belt is translated in the axial direction, the rotational speed of the drum is changed to a rotational speed that is inversely proportional to the circumference of the taper portion at the movement destination. Therefore, in the tapered drum rotational speed control system of the present invention, the rotational speed of the drum can be continuously and freely controlled by moving the position of the belt.

The taper drum rotation speed control system of the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a plan view showing a configuration of a drum capable of controlling the rotational speed in the tapered drum rotational speed control system of the present invention. A pair of drums A and B installed in parallel is shown connected by a belt 3. The taper drum A and the drum B installed in parallel are installed so that the taper direction is reversed. FIG. 2 is a diagram showing the number of rotations of the drum depending on the belt position. In FIG. 1, when the belt is moved from position C to position 1, as shown in FIG. 2, the rotation speed of the drum B increases and the rotation speed of the drum A decreases. Conversely, when the belt is moved to position 2, the rotation speed of the drum B decreases and the rotation speed of the drum A increases.

  For example, when A is rotating at a constant speed as a driving drum, the rotational speed of the drum B can be controlled to a desired rotational speed by changing the position of the belt. At this time, the drum B becomes a rotation speed variable drum to which the rotation of the drum A is transmitted by the belt. The driving drum may be a driving drum in which the drum A is interlocked with a motor, or may be a driving drum that is coupled to another driving drum and from which rotation is transmitted.

  The rotation speed controlled by the variable rotation speed drum can be, for example, in the range of 3% or less, preferably 1% or less, of the rotation speed of the driving drum linked with the motor. However, the degree of control is not limited to this, and can be appropriately selected in actual work.

  There is no limitation on the method of changing the belt position, and means suitable for the purpose can be selected as appropriate. In order to change the belt position, it is preferable to provide a belt shift handle so that the belt can be moved in the axial direction of the drum by operating the handle.

  Such a taper drum rotation speed control system may be configured as a pair of a plurality of taper drums. For example, a plurality of tapers are formed on a driving drum interlocked with a motor, and a rotation speed control is controlled between a plurality of pairs of taper drums connected to a plurality of rotation speed variable drums paired with the respective tapers. The taper drum rotation speed control system is an example of the taper drum rotation speed control system of the present invention.

  The distance between the pair of drums constituting the tapered drum rotation speed control system of the present invention is not particularly limited, and can be appropriately selected as long as the function of the belt connecting the two allows.

As a specific example of an apparatus employing the tapered drum rotational speed control system of the present invention, a product winding apparatus employing the tapered drum rotational speed control system will be described with reference to the drawings.
FIG. 3 is a schematic view showing a product winding device. The product winding device includes a rear roll 4 and a front roll 5 as winding drums. The rear roll 4 transmits a winding force to the product, and the front roll serves to adjust the tension of the wound product. Furthermore, a rider roll (Rider Roll) 6 for applying a contact pressure to the wound product is provided. The taper drum rotational speed control system of the present invention is employed between the rear roll 4 and the front roll 5, and both the drums have a taper and are connected by a belt at the drum portion.
In addition, in the apparatus of this invention, in order to make the flow of a product smooth, the free roll which does not drive suitably can be provided. Also in the following figures, a state in which a free roll is installed is shown.

  By the taper drum rotational speed control system, the front roll 5 is adjusted so that the rotational speed is slightly higher than the rear roll 4 (usually about 1%) as the product delivery speed in order to apply tension to the product. However, you can check the condition of the end face of the wound product roll and control the rotation speed, such as lowering the rotation speed of the front roll if you want to loosen the winding, or increasing the rotation speed of the front roll if you want to wind it hard. It is.

  The product winding device employing the tapered drum rotational speed control system of the present invention makes it possible to finely control the product tension, so that a desired product winding condition can be obtained. Such a product winding device can be particularly suitably applied to a product such as a nonwoven fabric that is flexible and stretches.

  Control of the drum rotation speed in the apparatus employing the tapered drum rotation speed control system of the present invention may be performed manually, or may be automatically controlled by installing an appropriate sensor. Drum rotation speed control using a computer is also a preferred mode for using the tapered drum rotation speed control system of the present invention.

  A taper drum rotational speed control system and other rolls can be appropriately connected to form a device that meets the purpose. For example, when a driving drum interlocked with a motor of a taper drum rotation speed control system and another drum are connected by a belt, rotation can be transmitted to the other roll. In this case, a belt pulley is attached to the drum and connected by a belt. The belt pulley is not particularly limited, and a conventionally known one can be adopted, and a V-type belt pulley or a flat belt pulley can be preferably used. By selecting the diameter of the drum to be connected, it is possible to appropriately select the rotation speed ratio of the other drum to the drive drum.

  FIG. 4 is a schematic diagram showing a state in which the drive drum A of the taper drum rotational speed control system and the other roll D are connected by a belt v hung on the attached belt pulley p.

  Further, if the taper drum rotation speed control system of the present invention is configured between the drive drum of the taper drum rotation speed control system and another drum, the rotation speed of the other drum can be controlled as necessary. Become.

  When winding a flexible and stretchable product such as a low-weight non-woven fabric, the rear drum of the take-up drum in the above-described product take-up device and the driving roll positioned in front of the take-up drum are interlocked by a belt. The product take-up device is capable of more accurately controlling the tension applied to the product at the time of taking.

  FIG. 5 is a schematic view showing a product winding device in which the product supplied from the product supply unit 7 is wound by the rear drum 4 of the winding drum through the driving roll 8. A taper drum rotational speed control system is adopted between the rear drum 4 of the winding drum and the front roll 5, and the rear drum 4 and the driving roll 8 are connected by a belt. A broken line between the rear drum 4 and the driving roll 8 indicates that they are connected by a belt. The same applies to the case where the product supply unit 4 is a raw material such as a nonwoven fabric attached to the unwinding shaft.

  Therefore, a preferred embodiment of the present invention is a product winding device that employs the taper drum rotational speed control system of the present invention between the rear drum 4 and the front roll 5 and connects the rear drum 4 and the driving roll 8 positioned in front of the rear drum 4. It is. A product winding method using such an apparatus is also a preferred embodiment of the present invention.

  In the present invention, the connection between the rolls will be described using a belt connection as a representative example, but other means for transmitting rotation between the rolls are also included in the embodiments of the present invention.

  The taper drum rotational speed control system of the present invention may be employed in a product feed section, for example, a drive roll in a belt shooter. For example, the taper drum rotational speed control system of the present invention can be employed between a belt shooter drive roll and a roll in contact with the delivered product, such as a tension pickup roll.

  When the product to be delivered is a raw material such as a nonwoven fabric attached to the unwinding shaft, the taper drum rotation speed control system of the present invention is configured between the drive roll of the belt shooter and the tension pickup roll. Since the rotation speed of the tension pickup roll can be controlled while observing the state of the product to be delivered, the tension of the product to be delivered can be controlled. It is also possible to adjust the rotation speed ratio between the drive roll of the belt shooter and the tension pickup roll in accordance with the state of the raw roll.

  Such a product delivery device and a product delivery method using the product delivery device are preferred embodiments of the present invention.

  If the drive roll of the product delivery section, for example, the drive roll of the belt shooter and the rear roll of the product take-up section are linked and interlocked with each other, the rotation of the rear drum is transmitted to the drive roll of the product delivery section. Therefore, the drive roll of the product delivery part does not need to be interlocked with the motor. In this way, the drive roll of the product delivery unit and the rear roll of the product take-up device are connected by the belt, so that when the product delivery unit and the product take-up unit are interlocked, the rotation speed of the drum as a whole is increased. Since it can be controlled, the product can be wound more reliably in a desired form.

A mode in which the drive roll of the product delivery unit and the rear roll of the product winding unit are connected by a belt is a preferable mode of the product winding device of the present invention. In this case, the aspect in which the tapered drum rotation speed control system of the present invention is configured between the drive roll and the tension pickup roll of the product delivery unit is a more preferable aspect of the product winding device of the present invention.
Such a product delivery apparatus and a product delivery method using the same are also preferred embodiments of the present invention.

  FIG. 6 is a schematic diagram showing a state in which an original fabric 9 such as a non-woven fabric attached to the unwinding shaft is sent out by the belt shooter 10 and wound around the product roll 13 via the rear roll 4 and the front roll 5 of the winding drum. Indicated. The rear roll 4 and the drive roll 11 of the belt shooter are connected by a belt. A taper drum rotation speed control system is employed between the belt shooter drive roll 11 and the tension pickup roll 12.

  With the product winding device and the winding method using the same according to the present invention, the product can be wound while controlling the rotation speed of the drum according to the state of the wound product and controlling the product tension. Even if the product is flexible and stretchable, desired winding can be performed while maintaining a good state.

  When slitting products with high flexibility such as low-weight non-woven fabric into narrow-width products, a slitter unit is installed between the driving roll and the rear roll of the take-up drum and slit to the desired width. The method to do is taken. A slitter part is normally comprised combining a slit upper blade roll and a slit lower blade roll.

  In the product winding device provided with the winding roll provided with the rear roll and the front roll adopting the taper drum rotation speed control system of the present invention described above, and the driving roll, the slitter is provided between the driving roll and the rear roll of the winding roll. The apparatus in which the part is installed is a slitter apparatus suitable for slitting a flexible product such as a low-weight nonwoven fabric into a narrow product. At this time, if the slit lower blade roll of the slitter unit is connected with the rear roll and the belt, it slits while maintaining a predetermined rotation speed with the rear roll, and the product winding after the slit is rotated with the rotation speed of the winding drum. By controlling, winding in a desired state is possible. In the conventional slitter apparatus, since it was difficult to control the tension of the slit product in the process from the slitter to the product winding roll, it was very difficult to wind up as a narrow product. With the slitter device of the present invention, it becomes possible to slit and take up without causing the disadvantages of the prior art that the slit width and the product width are greatly different or the appearance of the product is impaired.

  FIG. 7 is a schematic view showing a preferred embodiment of a slit device for a product that is flexible and stretchable like the nonwoven fabric of the present invention. The product supplied from the product delivery unit moves in the direction of the winding unit through the driving roll 8 and reaches the slitter unit. In the slitter section, the slit upper blade roll 14 and the slit lower blade roll 15 are slit to a predetermined width. The slit lower blade roll 15 is connected to the rear roll 4 by a belt (this connection is referred to as “X-link”), and the rotation of the drum of the rear roll is transmitted and driven.

  In FIG. 7, the product slit in the slitter unit is wound around the product roll 13 through the rear roll 4 and the front roll 5 whose rotation speed is controlled by the taper drum rotation speed control system. Due to the controlled rotation speed of the slit lower blade roll 15, the rear roll 4 and the front roll 5, the product is wound around the product roll 13 without causing a large difference between the slit width and the product width and without damaging the appearance of the product. Taken.

  That is, in the apparatus and method for slitting a product, a rear roll and a front roll adopting a taper drum rotational speed control system, and a slitter apparatus in which a rear roll and a slitter lower blade roll are connected is a preferable aspect of the present invention. A slitting method using the apparatus is also a preferred embodiment of the present invention.

  In such a slitter apparatus, a slitter apparatus in which a rear roll and a driving roll are further connected by a belt (this connection is referred to as “Y-link”) and a slit method using the slitter apparatus are more preferable embodiments of the present invention. . By linking the take-up drum and the driving roll, the product supply speed from the driving roll to the slitter unit can be set to a predetermined value, and the tension of the product in the meantime can be constant, so the product in the slitter unit The slits can be easily performed with a predetermined width.

  The product delivery speed between the slitter lower blade roll of the slitter part and the rear roll of the winding drum should be set slower by about 1 to 2% in the slitter part in a product having high flexibility such as nonwoven fabric. Is preferred. It is desirable to adjust the rotational speed of the drum so as to achieve such a state.

  In such a slit device, a slitter device in which the rear roll of the winding unit and the drive roll of the belt shooter of the product delivery unit are connected (this connection is referred to as “Z-link”), and a slit method using the slitter device Is a further preferred embodiment of the present invention.

  FIG. 8 shows a schematic view of an original fabric slitter apparatus having a Z-link in which the product delivery section and the winding section of the present invention are connected. The non-woven fabric 9 attached to the unwinding shaft is sent to the downstream side by the rotation of the belt shooter 10. The fed original fabric is sent to the slitter unit via the tension pickup roll 12 and the driving roll 8. In the slitter part, the raw material of the nonwoven fabric is slit to a predetermined width by the contact pressure between the upper blade and the lower blade of the cutter knife. Then, it winds up to the winding roll 13 through the rear roll 4 and the front roll 5, and winds up to predetermined length. In FIG. 8, the taper drum rotational speed control system of the present invention is employed between the rear roll 4 and the front roll 5 and between the drive roll 11 and the tension pickup roll 12 of the belt shooter. Further, the rear roll 4, the slit lower blade roll 13 (X-link), the driving roll 8 (Y-link), and the belt shooter drive roll 11 (Z-link) are connected by a belt.

  When the rear roll 4 and the drive roll 11 of the belt shooter are connected by a belt (Z-link), in a highly flexible product such as a non-woven fabric, the belt shooter is 3 to 5 higher than the rear roll as the product delivery speed. It is preferable to set the rotation speed of the driving roll of the rear roll and the belt shooter in such a manner.

  The product slitter apparatus of the present invention described above is characterized in that the taper drum rotational speed control system of the present invention is employed between the rear roll and the front roll.

  In the product winding device and product slitter device of the present invention described above, the rear roll and the slit lower blade roll are further connected by a belt, and the rotation of the rear roll is transmitted to the slit lower blade roll (X-link). This is a preferred embodiment. Thereby, target values such as a free tension width, a product winding width, and a product hardness of the wound product can be satisfied.

  In the product winding device and the product slitter device of the present invention, it is further preferable that the rear roll and the driving roll are connected (Y-link). Thereby, it can be ensured that target values such as a free tension width, a product winding width, and a product hardness of the wound product are satisfied.

  In the product winding device and the product slitter device of the present invention, it is further preferable that the rear roll and the drive roll of the belt shooter are connected (Z-link). Thereby, it is possible to further ensure that target values such as a free tension width, a product winding width, and a product hardness of the wound product are satisfied.

  In order to satisfy the target value of the above-described product, it is preferable that there is an X-link, and it is more preferable that an X-link and a Y-link are formed, and X-link, This is an aspect in which a link and a Z-link are configured.

  In the slitter apparatus and the slitting method of the present invention, when slitting a narrow raw material, a powder brake on the unwinding shaft may be used without using a belt shooter.

  According to the present invention, it becomes possible to slit a non-woven fabric having a high flexibility such as a polypropylene non-woven fabric into a narrow product having a product width of 100 mm or less, and efficiently manufacturing the narrow product without requiring complicated work. Therefore, it becomes possible to manufacture narrow products with high productivity.

  The present invention will be described more specifically with reference to the following examples. However, the present invention is not limited to the examples.

(Example 1)
A slitter apparatus having the structure shown in FIG. 8 was manufactured. Using this apparatus, slit processing was performed on a polypropylene nonwoven fabric (weight per unit area 15 g / m ² , width 10,36 mm, length 13,200 m). The slitting speed in the slitter section was 375 m / min for the slitter speed, 377 m / min for the rear roll and 382 m / min for the front roll. The rider roll contact pressure setting value at the winding part was 8V, and the nip pressure of the winding shaft was 6V.
Since the target value of the product width was 65 mm, the slitter part was slit to a width of 65 mm, the winding length was set to 6,500 m, and winding was performed twice to obtain two winding rolls. In each winding roll, 15 rolls of slit processed product were obtained, and the ear loss at both ends was 61 mm.
As a result, the product width after slit processing is 64 mm (standard value is 65 mm ± 3 mm), the product width in free tension is 66 mm (no standard), the side hardness is 82 (standard value 45 or more), and the winding diameter is 745 mm (standard). 760 mm or less).
From the above, it can be seen that a slit processed product having a good value with respect to the product standard value is obtained.

According to the present invention, there is provided a taper drum rotation speed control system that can be suitably used for a product winding device and a slitter device.
A product winding apparatus employing a tapered drum rotational speed control system provided by the present invention and a product winding method using the same enable tension control of a product that can be placed on winding, and are a low-weight nonwoven fabric It can be suitably used for winding products such as.
The slitter apparatus of the present invention employing the taper drum rotation speed control system provided by the present invention and the method of slitting a raw fabric using the same can be suitably used for a slit of a raw fabric of a low-weight nonwoven fabric.
According to the present invention, it becomes possible to slit a non-woven fabric having a high flexibility such as a polypropylene non-woven fabric into a narrow product having a product width of 100 mm or less, and efficiently manufacturing the narrow product without requiring complicated work. Therefore, it becomes possible to manufacture narrow products with high productivity.

It is a top view which shows the structure of the taper drum rotational speed control system of this invention. It is a figure which shows the relationship of the rotational speed of a pair of drum of a taper drum rotational speed control system. It is the schematic which shows the one aspect | mode of the product winding apparatus of this invention. It is the schematic which shows the aspect which connected the taper drum rotational speed control system and the other roll. It is the schematic which shows the other aspect of the product winding apparatus of this invention. It is the schematic which shows another aspect of the product winding apparatus of this invention. It is the schematic which shows the one aspect | mode of the slitter apparatus of this invention. It is the schematic which shows the other aspect of the slitter apparatus of this invention.

Explanation of symbols

A: taper drum B: taper drum C: belt position p: belt pulley v: belt 1: belt position 2: belt position 3: belt 4: rear roll 5: front roll 6: rider roll 7: product supply unit 8: driving roll 9: Raw fabric 10: Belt shooter 11: Belt shooter drive roll 12: Tension pickup roll 13: Product roll 14: Slit upper blade roll 15: Slit lower blade roll X: X-link Y: Y-link Z: Z- Link

Claims (11)

  A taper in which at least a pair of drums having a tapered portion are arranged such that the axes are parallel, the tapered portions are opposed, and the directions of the tapers are reversed, and the drums are connected by a belt at the tapered portion. Drum rotation speed control system.   2. The product winding apparatus according to claim 1, wherein the winding drum includes a rear roll and a front roll, and the taper drum rotation speed control system according to claim 1 is configured between the rear roll and the front roll.   The product winding device according to claim 2, wherein the product winding device is a device including at least a winding drum and a driving roll, and a rear roll and a driving roll are connected to each other.   The product winding device is a device including a winding drum, a driving roll, and a belt shooter for sending out the product, and a rear roll and a driving roll of the belt shooter are connected to each other. The product take-up device described.   In a slitter device including at least a slitter unit and a winding drum, the taper drum rotation speed control system according to claim 1 is configured between a rear roll and a front roll of the winding drum, and a slitter lower blade of the rear roll and the slitter unit A slitting machine with rolls connected.   6. The slitter device according to claim 5, wherein the slitter device is a device including a raw fabric feed section, a driving roll, a slitter section, and a winding drum, and further, a rear roll and a driving roll are connected. .   The said raw fabric delivery part has a belt shooter, and the drive roll of the belt shooter is connected with the rear roll of the winding drum of the winding drum. Slitter device.   The slitter device according to claim 7, wherein the taper drum rotation speed control system according to claim 1 is configured between a drive roll of the belt shooter and a tension pickup roll located behind the belt shooter.   A product winding method using the product winding device according to claim 2.   A slitting method for an original fabric using the slitter device according to any one of claims 5 to 7.   The slit method according to claim 10, wherein the raw fabric is a low-weight nonwoven fabric.

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