JP6243582B2 - Tow band manufacturing method and tow band manufacturing apparatus - Google Patents

Description

  The present invention relates to a tow band manufacturing method and a tow band manufacturing apparatus for drying a plurality of types of tow bands using a single drying apparatus.

  A cigarette filter is manufactured by a tow band using a plurality of filaments such as cellulose acetate fibers. In the toe band manufacturing apparatus, as disclosed in Patent Document 1, for example, a plurality of filaments spun by a spinning cylinder are combined by a godet roller to form a yarn, and the plurality of yarns are further combined to form a yarn bundle. Is formed. The yarn bundle is made easy to plasticize by impregnation with water, and then conveyed to a crimping apparatus. In the crimping device, for example, the yarn bundle is inserted between a pair of nip rollers, and is pushed into a stuffing box provided on the downstream side in the conveying direction of the pair of nip rollers, whereby the yarn bundle is crimped. The tow band thus obtained is dried by a drying device, folded into a bale, and packed in a packing container.

  In a filter rod manufacturing apparatus (also referred to as “plug hoist”), as disclosed in Patent Document 2, for example, a tow band fed out from a packaging container is opened and a plasticizer is attached to form a rod shape. Molded. Thereafter, a wrapping paper is wound around the outer periphery of the tow band to manufacture a filter rod (also referred to as “plug”). A cigarette filter is manufactured by cutting the filter rod into a predetermined length.

Special table 2008-504457 gazette JP 2003-38157 A

  For example, when a plurality of types of tow bands having different FD (filament denier) or TD (total denier) are manufactured in parallel with a tow band manufacturing apparatus, the plurality of types of tow bands are dried in parallel with a single drying apparatus. There is a case. It is desirable that the plurality of types of tow bands contain an appropriate amount of water in accordance with each of the types of tow bands so as to be appropriately opened while preventing tangles of the plurality of filaments in the filter rod manufacturing apparatus.

  Therefore, in the case where a plurality of types of tow bands are produced in parallel, the present invention uses each single tow band so that the residual amount of water contained in each tow band becomes an appropriate amount according to each. The purpose is to allow drying in parallel.

  The method for producing a tow band according to one aspect of the present invention comprises drying a plurality of types of tow bands formed by crimping a plurality of filaments impregnated with water with a single drying device while meandering and conveying the tow bands. A removal step of removing a part of water contained in each of the tow bands of the plurality of types of tow bands, a detection step of detecting a residual amount of water contained in each of the tow bands that have passed through the drying device, and the drying device And an adjustment step of adjusting the meandering vibration width of each tow band based on the detection result of the detection step so that the residual amount of water contained in each toe band that has passed through becomes a target value.

  According to the above method, the residual amount of water contained in each tow band that has passed through the drying device is detected, and the residual amount of water contained in each tow band that has passed through the drying device is determined based on the detection result. The torsional vibration width of each toe band is adjusted so that Therefore, for example, even when a plurality of types of tow bands having different FD or TD are dried in parallel using a single drying device, the residual amount of water contained in each tow band depends on each. Each tow band can be appropriately dried so as to be an appropriate amount.

  Further, the swinging portion of the swinging device provided on the upstream side in the transporting direction with respect to the transporting device of the drying device transporting each tow band and swinging on both sides in the transporting direction within a horizontal plane By contacting each toe band, the tow band may be conveyed to the conveying device in a meandering state.

  According to the above method, each tow band is brought into contact with the oscillating portion of the oscillating device having an oscillating portion that oscillates on both sides in the conveying direction within a horizontal plane, and each tow band is meandered and conveyed to the conveying device. Thereby, in a drying apparatus, each tow band can be efficiently dried from the conveyance direction upstream side.

  In addition, the plurality of swinging devices provided at intervals in a direction orthogonal to the transport direction in a horizontal plane may be used to transport the tow bands in a meandering manner in parallel to the transport device. .

  According to the above method, the tow bands are arranged in parallel while preventing the toe bands from interfering with each other by using a plurality of the oscillating devices provided at intervals in a direction orthogonal to the conveying direction in a horizontal plane. The tow band can be efficiently dried in parallel in the drying device in a meandering state.

  Further, by adjusting a gap between a pair of guide members provided on both sides in the transport direction of each toe band in the horizontal plane on the downstream side in the transport direction of the rocking device, the guide members guide the tow bands. The meandering vibration width of the tow band may be adjusted.

  According to the above method, by adjusting the gap between the pair of guide members, the vibration width of the meandering of each toe band can be easily adjusted.

  Moreover, you may perform the said detection process based on the detection result of the some detection apparatus provided corresponding to each said tow | toe band.

  According to the above method, by performing the detection step based on the detection results of a plurality of detection devices provided corresponding to the toe bands, the residual amount of water contained in each toe band is individually and accurately determined. It can be detected.

  The tow bands may have different filament deniers or total deniers. Even when manufacturing such a plurality of types of tow bands, each tow band can be appropriately dried using a single drying device.

  The tow band manufacturing apparatus according to one aspect of the present invention is configured to dry a plurality of types of tow bands formed by crimping a plurality of filaments to which water has been added while meandering and conveying the plurality of types of tow bands. A single drying device that removes part of the water contained in each tow band, and a detection device that detects the remaining amount of water contained in each tow band that has passed through the drying device, and the drying device Based on the detection result of the detection device, the vibration width of the meandering of each tow band can be adjusted so that the residual amount of water contained in each tow band that has passed becomes a target value.

  According to the above configuration, the residual amount of water contained in each tow band that has passed through the drying device is detected by the detection device, and the water contained in each toe band that has passed through the drying device is detected based on the detection result of the detection device. The torsional vibration width of each tow band is adjusted so that the residual amount becomes a target value. Therefore, for example, even when a plurality of types of tow bands having different FD or TD are dried in parallel using a single drying device, the residual amount of water contained in each tow band depends on each. Each tow band can be appropriately dried so as to be an appropriate amount.

  Moreover, you may further provide the display part which displays the detection result of the said detection apparatus. According to this configuration, the operator can easily and quickly know the detection result of the detection device by checking the display unit.

  Further, the drying device has a conveying device that conveys each tow band, and is provided with an oscillating portion that is provided upstream of the conveying device in the conveying direction and oscillates on both sides in the conveying direction within a horizontal plane. The apparatus may further include a device, and the tow bands may be brought into contact with the swinging portion so that the tow bands are meandered and conveyed to the conveying device.

  According to the above configuration, each tow band is brought into contact with a swinging portion that swings on both sides in the transport direction within a horizontal plane, and each tow band is meandered and transported to the transport device, whereby in the drying device, the upstream in the transport direction. Each tow band can be efficiently dried from the side.

  A plurality of the swinging devices may be provided in the horizontal plane at intervals in a direction orthogonal to the transport direction, and the tow bands may be transported to the transport device in a meandering manner in parallel.

  According to the above configuration, by using a plurality of oscillating devices provided at intervals in a direction orthogonal to the conveying direction in a horizontal plane, the tow bands are conveyed in parallel in a meandering state to the conveying device, In the drying apparatus, each tow band can be efficiently dried in parallel.

  In addition, a pair of guide members for guiding each toe band is provided on both sides in the transport direction of each toe band in a horizontal plane on the downstream side in the transport direction of the rocking device, and a gap between the pair of guide members is adjusted. By doing so, the vibration width of the meandering of each toe band may be adjusted.

  According to the above configuration, the vibration width of the meandering of each toe band can be easily adjusted by adjusting the gap between the pair of guide members.

  Moreover, the said some detection apparatus may be provided corresponding to each said toe band. According to this configuration, the residual amount of water contained in each toe band can be detected individually and accurately by the plurality of detection devices provided corresponding to each toe band.

  According to the present invention, when a plurality of types of tow bands are manufactured in parallel, each tow band is used so that the residual amount of water contained in each tow band becomes an appropriate amount while using a single drying device. Can be dried in parallel.

1 is an overall view of a toe band manufacturing apparatus. It is the figure which looked down at the rocking device and the conveyance device in the vertical direction. It is a functional block diagram of a toe band manufacturing apparatus.

  Embodiments of the present invention will be described with reference to the drawings. In the following description, the left-right direction refers to a direction orthogonal to the conveyance direction of the toe band 103 in the horizontal plane.

[Tow Band Manufacturing Equipment]
FIG. 1 is an overall view of a tow band manufacturing apparatus 1. As shown in FIG. 1, a tow band manufacturing apparatus 1 includes a mixer 2, a filtration device 3, a spinning device 4, an oiling device 5, a godet roller 6, guide pins 7, 8, a hydrogenation device 9, a crimping device 10, and a swing device. 11, a guide device 12, a drying device 13, a packing device 14, and a control device 15. The tow band manufacturing apparatus 1 further includes a first detection device D1 provided on the upstream side in the conveyance direction of the water soaking device 9, and a second detection device D2 provided on the downstream side in the conveyance direction of the drying device 13. Yes. The toe band manufacturing apparatus 1 has at least a plurality of tow bands 103 conveying paths L from the water soaking apparatus 9 to the packing apparatus 14, and a plurality of types of tow bands having different FD and TD are conveyed in parallel to the respective conveying paths L. It is configured so that it can be manufactured.

  The mixer 2 includes a mixing container 16 and a stirrer 17, and adjusts a spinning dope that includes a material of the filament 100 (in this embodiment, a material of cellulose acetate fiber). The filtering device 3 filters the spinning dope supplied from the mixer 2 to remove impurities.

  The spinning device 4 includes a spinning cylinder 18, a spinneret 19, and a spinning pump (not shown), and spins a plurality of filaments 100. A plurality of the spinning cylinders 18 are arranged in parallel at intervals. In FIG. 1, only the structure of the single spinning cylinder 18 is illustrated. The spinneret 19 is provided on the upper part of each spinning cylinder 18. In the spinning device 4, as an example, based on the dry spinning method, by driving a spinning pump, the spinning stock solution that has passed through the filtration device 3 is sent to each spinneret 19, and a plurality of spinning holes formed in each spinneret 19. The plurality of filaments 100 are spun by being discharged downward in the spinning cylinder 18. A plurality of filaments 100 are united while being conveyed from each spinning cylinder 18 to the downstream side in the conveying direction, whereby a yarn 101 is formed. In the toe band manufacturing apparatus 1, a plurality of types of yarns 101 are formed by simultaneously spinning and uniting a plurality of filaments 100 having different FD and TD in a plurality of spinning cylinders 18.

  The oiling device 5 is disposed below each spinning cylinder 18 and adheres an oil emulsion to the yarn 101. An oil emulsion contains water and a fiber oil agent as an example. The godet roller 6 is disposed below each oiling device 5 and is driven to rotate, thereby bringing the yarn 101 into contact with the circumferential surface and transporting it downstream in the transport direction.

  The guide pins 7 and 8 guide the yarn 101 downstream in the transport direction by contacting the yarn 101 on the downstream side in the transport direction of each godet roller 6. A plurality of yarns 101 are united while being conveyed toward the downstream side in the conveyance direction, whereby a yarn bundle 102 is formed. The yarn bundle 102 is conveyed to the water impregnation device 9. The water impregnation device 9 is provided in each conveyance path L, and attaches water to the yarn bundle 102, and plasticizes the yarn bundle 102 to facilitate crimping. In the water soaking apparatus 9, a water-soluble organic solvent such as alcohol may be attached to the yarn bundle 102 in addition to water.

  The crimping device 10 is provided in each conveyance path L, and crimps the yarn bundle 102 that has passed through the water soaking device 9 individually. The crimping device 10 is a stuffing box type, and includes a pair of nip rollers (also referred to as a feed roller, a crimp roller, or a pressing roller) 20 and 21 and a stuffing box 22. The pair of nip rollers 20 and 21 are arranged so as to be pivotally supported in parallel and are driven to rotate, thereby inserting the yarn bundle 102 into the nip portion N between the pair of nip rollers 20 and 21. The stuffing box 22 includes a first plate member 23, a second plate member 24, and a third plate member 25, and is disposed on the downstream side in the transport direction of the pair of nip rollers 20 and 21. As for the 1st board | plate material 23 and the 2nd board | plate material 24, a mutual plate | board surface is opposingly arranged. The third plate member 25 is disposed between the first plate member 23 and the second plate member 24 so as to extend from the first plate member 23 toward the second plate member 24. The end of the third plate member 25 on the downstream side in the conveying direction is biased in the direction of pressing the plate surface of the second plate member 24. Although the 1st board | plate material 23, the 2nd board | plate material 24, and the 3rd board | plate material 25 are flat plate shape as an example, at least any of these may be curved plate shape.

  When the yarn bundle 102 to which water has been applied by the water application device 9 is inserted between the pair of nip rollers 20 and 21, a fine primary crimp is applied at the nip portion N, and then from the nip portion N. It is released and pushed into the stuffing box 22. As shown in FIG. 1, the end of the third plate member 25 on the downstream side in the conveyance direction is pressed against the plate surface of the second plate member 24, so that the internal space of the stuffing box 22 becomes narrower toward the downstream side in the conveyance direction. It has become. The yarn bundle 102 meanders up and down in the stuffing box 22 and stays temporarily while buckling, and then passes between the second plate member 24 and the third plate member 25 and is discharged downstream in the transfer direction. . Thereby, the toe band 103 to which higher-order crimps are applied is formed.

  The oscillating device 11 is provided in each conveyance path L, and causes the tow band 103 that has passed through the crimping device 10 to meander and convey in the left-right direction. The swing device 11 includes a base portion 30, a shaft portion 31, and a swing portion 32. The base unit 30 incorporates a swing device motor M1 and a cam mechanism 30a, and the rotational driving force of the swing device motor M1 is transmitted to the shaft portion 31 via the cam mechanism 30a. The shaft portion 31 extends in the vertical direction above the base portion 30. The cam mechanism 30a is an example of a swing mechanism, and the shaft portion 31 reciprocally rotates around the axis at a predetermined angle by the function of the cam mechanism 30a. The swing mechanism is not limited to the cam mechanism 30a, and may be a crank mechanism, for example. The oscillating portion 32 has a long shape extending in the transport direction, and has a concave flow passage 32a in which a cross section perpendicular to the longitudinal direction is recessed downward. The flow path 32a extends so as to have a downward slope toward the downstream side in the transport direction, and the tow band 103 is circulated. The flow passage 32a may extend horizontally in the transport direction. The end of the swinging portion 32 on the upstream side in the transport direction is fixed to the upper end of the shaft portion 31.

  FIG. 2 is a view of the swinging device 11 and the conveying device 40 looking down in the vertical direction. When the toe band manufacturing apparatus 1 is in operation, the oscillating portion 32 is rotated around the axis of the shaft portion 31 with the shaft center of the shaft portion 31 as the oscillating center Q by the oscillating device motor M1 and the cam mechanism 30a (see FIG. 1). Furthermore, it swings at a predetermined angle of swinging width on both sides in the transport direction within a horizontal plane. Accordingly, the tow band 103 that has passed through the flow passage 32a while being in contact with the swinging portion 32 is alternately swung in the right direction and the left direction and meanders. In FIG. 2, each position of the straight line P passing through the center in the width direction of the swing part 32 when the swing part 32 swings with the maximum swing width is shown. In the toe band manufacturing apparatus 1, the swinging devices 11 are provided at intervals in the left-right direction so as to correspond to the transport paths L. Thereby, a plurality of types of tow bands 103 are conveyed in a meandering state in parallel.

  The guide device 12 adjusts the vibration width of the meandering in the left-right direction of the toe band 103 while guiding the toe band 103 transported along each transport path L in the transport direction on the downstream side of the swing device 11 in the transport direction. The guide device 12 includes a stage portion 35 and a plurality of pairs of guide members 36 and 37. The stage unit 35 is a plate and is arranged so that the upper surface is horizontal. Each pair of guide members 36 and 37 is fixed to the upper surface of the stage portion 35 with a gap so as to sandwich each conveyance path of the toe band 103 extending in the conveyance direction in the left-right direction. In FIG. 2, as an example, two pairs of guide members 36 and 37 fixed to the upper surface of the stage portion 35 and two pairs of guide members 36 and 37 so as to sandwich adjacent conveyance paths R1 and R2 in the left-right direction, respectively. Two types of tow bands 103 (tow bands 103A and 103B) that are transported along transport paths R1 and R2 while meandering in a gap between them are shown.

  The guide members 36 and 37 are formed using a plate material, and include fixed portions 36a and 37a and guide portions 36b and 37b. The fixing portions 36 a and 37 a are fixed to the upper surface of the stage portion 35 so as to be slidable in the left-right direction along the upper surface of the stage portion 35. A plurality of long holes 36a1, 37a1 extending in the left-right direction and penetrating in the thickness direction are formed in the fixing portions 36a, 37a. A pair of guide portions 36b and 37b are provided on both sides of the fixing portions 36a and 37a that extend in the vertical direction from the mutually opposite one ends in the horizontal direction and sandwich the toe band 103 conveyance direction in a horizontal plane. Thus, the guide portions 36b and 37b guide the toe band 103 in the transport direction while being in contact with the toe band 103. The operator inserts the bolt B into the long holes 36 a 1 and 37 a 1 and tightens the bolt B into the screw hole 35 a provided in the stage portion 35, whereby the guide members 36 and 37 are fixed to the stage portion 35. In the example shown in FIG. 2, the position of the transport paths R1, R2 in the left-right direction can be adjusted by sliding each pair of guide members 36, 37 in the same direction in the left-right direction with the bolt B loosened. . Thereby, the position in the left-right direction of the tow bands 103 </ b> A and 103 </ b> B when the tow band 103 is conveyed to the drying device 13 can be adjusted. In addition, the gap between the guide portions 36b and 37b can be adjusted by sliding the pair of guide members 36 and 37 in different directions in the left-right direction with the bolt B loosened. Thereby, the torsional vibration widths W1 and W2 of the tow bands 103A and 103B when transported to the drying device 13 can be adjusted.

  As an example, the guide member 36 with respect to the stage unit 35, so that the downstream end of the flow path 32a of the swinging part 32 swings to the outside in the left-right direction of the transport paths R1, R2 in the horizontal plane. The fixing position of 37 may be adjusted. Accordingly, the tow bands 103A and 103B that have passed through the flow passage 32a can be efficiently brought into contact with the guide portions 36b and 37b, and the tow bands 103A and 103B can be conveyed while meandering with stable vibration widths W1 and W2.

  The method for adjusting the gap between the guide members 36 and 37 may be a method other than the above. For example, the guide device 12 may be provided with a ball screw mechanism, and the gap between the guide members 36 and 37 may be adjusted by sliding and moving at least one of the guide members 36 and 37 in the left-right direction with the ball screw mechanism. Further, the guide device 12 may be omitted. In this case, by individually adjusting the swing width of the swing portion 32 in the swing device 11, the meandering vibration width of each toe band 103 can be individually adjusted. Increasing the swinging width of the swinging portion 32 can increase the vibration width of the meandering band of the toe band 103, and decreasing the swinging width of the swinging portion 32 can decrease the swinging width of the meandering of the toe band 103.

  The drying device 13 removes each part of water and volatile components contained in each tow band 103 by drying each tow band 103 that has passed through the guide device 12. In the toe band manufacturing apparatus 1, a plurality of types of tow bands 103 are dried in parallel using a single drying device 13. As shown in FIG. 1, the drying device 13 includes a transport device 40 for transporting a plurality of types of tow bands 103 in parallel. The conveying device 40 includes a driven roller 41, a driving roller 42, an endless belt 43, and a conveying device motor M2. The driven roller 41 and the driving roller 42 are disposed so as to be supported in parallel. The endless belt 43 is wound around the driven roller 41 and the driving roller 42 so as to be rotated in the transport direction. The conveyance device motor M <b> 2 is provided to transmit a rotational driving force to the driving roller 42. When the conveyance device motor M2 is driven, a plurality of types of tow bands 103 that have passed through the guide device 12 are arranged in parallel in the left-right direction while being meandered with a predetermined vibration width by the pair of guide members 36 and 37, respectively. It is placed on the upper surface of the belt 43 and conveyed (see FIG. 2). Inside the drying device 13, by applying a gas (here, heated air) to a plurality of types of tow bands 103, each part of water and volatile components contained in each tow band 103 is removed.

  Here, for the purpose of appropriately opening the tow band 103 while preventing the tangles of the plurality of filaments in the filter rod manufacturing apparatus, a plurality of types of tow bands 103 that have passed through the drying apparatus 13 have an appropriate amount corresponding to each. It is desirable to contain water. On the other hand, the tow band manufacturing apparatus 1 can adjust the residual amount of water contained in each tow band 103 that has passed through the drying apparatus 13 by adjusting the meandering vibration width of each tow band 103 in the guide apparatus 12. It is configured.

  As shown in FIG. 2, as an example, if the gap between the two pairs of guide members 36 and 37 is adjusted in the guide device 12, the meandering vibration width W <b> 1 of the tow bands 103 </ b> A and 103 </ b> B conveyed on the endless belt 43. , W2 can be adjusted. Thereby, the drying time of the tow bands 103A and 103B in the drying device 13 can be changed, and the residual amount of water contained in the tow bands 103A and 103B can be adjusted. As the torsional width of the tow bands 103A and 103B increases, the drying time of the tow bands 103A and 103B in the drying device 13 becomes longer, and the residual amount of water contained in the tow bands 103A and 103B can be reduced. Further, as the torsional width of the tow bands 103A and 103B is decreased, the drying time of the tow bands 103A and 103B in the drying device 13 is shortened, and the residual amount of water contained in the tow bands 103A and 103B can be increased. Such adjustment can be performed on at least one of the toe bands 103A and 103B.

  As shown in FIG. 1, the packing device 14 packs the toe band 103. The packing device 14 includes a pair of rollers 44 and 45. The tow band 103 that has passed through the drying device 13 is inserted between the rollers 44 and 45, folded into a bale shape, and compressed, whereby the tow band 103 is packed into the packing container 26. Pack in.

  The first detection device D1 and the second detection device D2 are arranged at a predetermined position on the conveyance path in the toe band manufacturing apparatus 1, and detect the amount of moisture contained in the yarn bundle 102 or the toe band 103 at the predetermined position. Specifically, the first detection device D <b> 1 is disposed at a position corresponding to each conveyance path L of each yarn bundle 102 and detects the amount of moisture contained in the yarn bundle 102. Moreover, the 2nd detection apparatus D2 is arrange | positioned in the position corresponding to each of the multiple types of tow band 103 which passed the drying apparatus 13, and detects the residual amount of the water contained in each toe band 103 (refer FIG. 2). The first detection device D1 and the second detection device D2 are infrared sensors as an example, but may be other sensors or a near-infrared spectrophotometer.

  The control device 15 controls the operation of each part of the tow band manufacturing device 1 and displays the detection results of the first detection device D1 and the second detection device D2 on the display unit 50. FIG. 3 is a functional block diagram of the tow band manufacturing apparatus 1. As illustrated in FIG. 3, the control device 15 includes a display unit 50, a CPU 51, a ROM 52, and a RAM 53. The display unit 50 is a liquid crystal display as an example, and is provided at a position where the operator of the housing of the control device 15 can visually recognize. The ROM 52 stores a control program for the tow band manufacturing apparatus 1. The RAM 53 stores various setting information set by the operator. The CPU 51 controls the driving of the oiling device 5, the godet roller 6, the pair of nip rollers 20, 21, the swing device motor M1, and the transport device motor M2 based on the control program and various setting information. Further, the CPU 51 displays the detection results of the first detection device D1 and the second detection device D2 on the display unit 50 based on the control program. Therefore, by confirming the detection result displayed on the display unit 50, the operator can determine the amount of moisture contained in the yarn bundle 102 at the position corresponding to the first detection device D1 and the position corresponding to the second detection device D2. The residual amount of water contained in the tow band 103 can be known. The control device 15 may be a personal computer (PC).

  When the tow band manufacturing apparatus 1 is in operation, each yarn bundle 102 to which water has been applied by the water applying apparatus 9 is crimped by the crimping apparatus 10 to form a plurality of types of tow bands 103. A plurality of types of tow bands 103 are dried by a single drying device 13 while being meandered and conveyed along each conveyance path L. Thereby, the removal process which removes a part of water contained in each tow band 103 is performed. The remaining amount of water contained in each tow band 103 that has passed through the drying device 13 is detected by each second detection device D2, and the CPU 51 causes the display unit 50 to display each detection result. Thereby, the detection process of the residual amount of water of each tow band 103 is performed. When the operator confirms that the residual amount of water contained in any one of the toe bands 103 is deviated from the target value, the operator uses the guide device 12 to define a pair of guide members that define the transport path of the tow band 103. The positions of 36 and 37 with respect to the stage portion 35 are adjusted, and the vibration width of the meandering of the toe band 103 is adjusted. Thereby, the adjustment process of adjusting the vibration width of the meandering of the tow band 103 so that the residual amount of water contained in any one of the plurality of types of tow bands 103 that have passed through the drying device 13 becomes the target value. Is done.

  Thus, in the tow band manufacturing apparatus 1, the residual amount of water contained in each tow band 103 that has passed through the drying apparatus 13 is detected individually and accurately by each second detection device D2, and each detection result is displayed on the display unit 50. Is displayed. Therefore, the operator can individually and quickly check the residual amount of water contained in each tow band 103 that has passed through the drying device 13 based on each detection result displayed on the display unit 50. When the residual amount of water contained in any one of the tow bands 103 that has passed through the drying device 13 deviates from the target value, the operator adjusts the vibration width of the meandering of the tow band 103 in the guide device 12. The residual amount of water contained in the tow band 103 that has passed through the drying device 13 can be easily adjusted so as to be a target value.

  Here, for example, when drying a plurality of types of tow bands 103 having different FD or TD, the target values of the residual amounts of water contained in the tow bands 103 are different from each other. It is generally difficult to properly dry the type of tow band 103. On the other hand, in the toe band manufacturing apparatus 1, the meandering vibration width of each toe band 103 can be individually adjusted in the guide apparatus 12. Therefore, even when a plurality of types of tow bands 103 are dried in parallel using a single drying device 13, each tow band 103 is adjusted so that the residual amount of water contained in each tow band 103 becomes an appropriate amount. Can be properly dried.

  In the toe band manufacturing apparatus 1, each toe band 103 is brought into contact with the swinging portions 32 of the plurality of swinging apparatuses 11, and each tow band 103 is meandered and transported to the transporting device 40. For this reason, in the drying apparatus 13, each tow band 103 can be efficiently dried from the upstream side in the transport direction.

  In addition, the plurality of swinging devices 11 provided at intervals in the left-right direction are used to transport the tow bands 103 to the transport device 40 in a meandering state. For this reason, each toe band 103 can be efficiently dried in parallel while preventing the toe bands 103 from interfering with each other.

  In the tow band manufacturing apparatus 1, a single drying apparatus 13 is used to dry each tow band 103. For this reason, while reducing the production cost of each toe band 103, the toe band manufacturing apparatus 1 can be comprised compactly.

  The tow band manufacturing apparatus 1 may include a plurality of drying apparatuses 13. In this case, a plurality of types of tow bands 103 can be dried in parallel by each drying device 13. In addition, the use of the tow band manufactured by the tow band manufacturing apparatus 1 is not limited to the use for manufacturing a cigarette filter, and for example, may be used for manufacturing absorbent bodies (also referred to as absorption members) such as paper diapers and sanitary products.

  As described above, according to one aspect of the present invention, when a plurality of types of tow bands are manufactured in parallel, the residual amount of water contained in each toe band is in accordance with each using a single drying device. It has an excellent effect that each tow band can be dried in parallel so as to be an appropriate amount. Therefore, it is beneficial to apply widely as a tow band manufacturing method and a tow band manufacturing apparatus capable of exhibiting the significance of this effect.

D1 1st detection apparatus D2 2nd detection apparatus 1 Tow band manufacturing apparatus 11 Oscillating apparatus 13 Drying apparatus 32 Oscillating part 36, 37 Guide member 40 Conveying apparatus 50 Display part 100 Filament 103, 103A, 103B Toe band

Claims (12)

A plurality of types of tow bands formed by crimping a plurality of filaments impregnated with water are dried by a single drying device while meandering and transporting, so that water contained in each of the tow bands of the plurality of types of tow bands is contained. A removal step of removing a part of
A detection step of detecting a residual amount of water contained in each tow band that has passed through the drying device;
An adjustment step of adjusting the meandering vibration width of each tow band based on the detection result of the detection step so that the residual amount of water contained in each tow band that has passed through the drying device becomes a target value, respectively; A method for producing a tow band.   Each tow band is provided on the swinging portion of a swinging device provided on the upstream side in the transport direction with respect to the transporting device of the drying device that transports the towband and swings on both sides in the transporting direction within a horizontal plane. The tow band manufacturing method according to claim 1, wherein the tow band is conveyed to the conveying device in a meandering state by contacting the tow band.   The plurality of swinging devices provided at intervals in a direction orthogonal to the transport direction in a horizontal plane are used to transport the tow bands to the transport device in a meandering state in parallel. A method for producing the tow band as described.   By adjusting a gap between a pair of guide members that are provided on both sides of the toe band in the transport direction on the downstream side in the transport direction of the swing device and guide each toe band, The tow band manufacturing method according to claim 2 or 3, wherein a vibration width of the meandering is adjusted.   The tow band manufacturing method according to any one of claims 1 to 4, wherein the detection step is performed based on detection results of a plurality of detection devices provided corresponding to the toe bands.   The tow band manufacturing method according to any one of claims 1 to 5, wherein the toe bands have different filament deniers or total deniers. A plurality of types of tow bands formed by crimping a plurality of filaments to which water is added are dried while being meandered, and a part of the water contained in each of the tow bands of the plurality of types of tow bands is removed. With a single drying device,
A detection device for detecting a residual amount of water contained in each tow band that has passed through the drying device,
Based on the detection result of the detection device, the vibration width of the meandering of each tow band can be adjusted so that the residual amount of water contained in each tow band that has passed through the drying device becomes a target value. The tow band manufacturing equipment.   The toe band manufacturing apparatus according to claim 7, further comprising a display unit that displays a detection result of the detection apparatus. The drying device has a transport device for transporting the tow bands,
Further comprising a swinging device provided on the upstream side of the transporting device with respect to the transporting device and having a swinging portion swinging on both sides in the transporting direction within a horizontal plane;
The tow band manufacturing apparatus according to claim 7 or 8, wherein the tow band is conveyed to the conveying device in a meandering state by contacting the tow band with the swinging portion.   The plurality of swinging devices are provided at intervals in a direction orthogonal to the transport direction in a horizontal plane, and the tow bands are transported to the transport device in a meandering state in parallel. Tow band manufacturing equipment. A pair of guide members for guiding each toe band is provided on both sides in the transport direction of each toe band in a horizontal plane on the downstream side in the transport direction of the swinging device,
11. The toe band manufacturing apparatus according to claim 9, wherein the meandering vibration width of each toe band is adjusted by adjusting a gap between the pair of guide members. The tow band manufacturing apparatus according to any one of claims 7 to 11, wherein a plurality of the detection devices are provided corresponding to the respective toe bands.

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