WO2010147154A1 - Web traveling direction changing method and web traveling direction changing device - Google Patents
Web traveling direction changing method and web traveling direction changing device Download PDFInfo
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- WO2010147154A1 WO2010147154A1 PCT/JP2010/060222 JP2010060222W WO2010147154A1 WO 2010147154 A1 WO2010147154 A1 WO 2010147154A1 JP 2010060222 W JP2010060222 W JP 2010060222W WO 2010147154 A1 WO2010147154 A1 WO 2010147154A1
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- Prior art keywords
- web
- roll
- roll group
- group
- rolls
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/32—Arrangements for turning or reversing webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/02—Conveying or guiding webs through presses or machines
- B41F13/06—Turning-bar arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/34—Modifying, selecting, changing direction of displacement
- B65H2301/341—Modifying, selecting, changing direction of displacement without change of plane of displacement
Definitions
- the present invention relates to a method for changing the traveling direction of a web and a device that is provided in a traveling path of the web and changes the traveling direction of the web.
- a device using a turn bar is generally used as a device for changing the running direction of a web, which is a continuous belt-like sheet material made of nonwoven fabric, woven fabric, paper, metal foil, resin film, etc.
- a web traveling direction changing device using the turn bar the turn bar does not rotate. Therefore, a frictional force is generated between the turnbar and the web wound around the turnbar. May occur, causing damage to the web or causing web shrinkage or meandering. Furthermore, this frictional force tends to generate paper dust and web additives (oil agent etc.) from the web, which may cause contamination of the apparatus and web.
- Patent Document 3 discloses a web traveling direction conversion device that reduces fluctuations in tension when changing the traveling direction of a web and can stably change the direction without causing wrinkles or the like on a continuously conveyed web.
- a web traveling direction conversion device that reduces fluctuations in tension when changing the traveling direction of a web and can stably change the direction without causing wrinkles or the like on a continuously conveyed web.
- an apparatus for changing the traveling direction of a web by bending it while being placed on the transport surface There is a problem that the relationship between the web surface at the time of supply to the apparatus and at the time of discharge and the travel angle to be changed is not free, and a space is required in the transport apparatus.
- a plurality of pass rollers are used, and among them, a pair of pass rollers arranged adjacent to each other in the vertical direction is arranged in a non-parallel posture so that the traveling direction of the band-shaped metal plate is predetermined.
- a method of converting to a direction has been proposed (see Patent Document 4).
- Patent Document 4 A method of converting to a direction has been proposed (see Patent Document 4).
- this method since the number of times of passing the web between the pass rollers is small, it is necessary to increase the angle of the adjacent pass rollers when making a large change in direction. In that case, the difference in tension generated between the left and right in the width direction becomes significant. As a result, when the upper and lower roll angles are arranged large, wrinkles may be generated on the web or the web may be damaged depending on the type of the web.
- JP-A-6-345306 US6302353B1 JP 2006-89208 A JP 2000-351506 A
- the present invention allows the web to travel in a bellows-like manner over a group of rolls in which a plurality of rotatable rolls are arranged in a radial manner, so that the web traveling direction can be changed between the supply position to the roll group and the discharge position.
- the present invention provides a method for changing the running direction of the web to be different.
- the present invention provides a web traveling direction changing device that has a roll group in which a plurality of rotatable rolls are arranged radially, and is used by wrapping a web around the roll group in a bellows shape. It is.
- the web has less frictional resistance against the running direction changing device compared to the conventional turn bar, and therefore, the web is less damaged, and It is possible to prevent paper dust, web additives (oil agent, etc.) from adhering to and contaminating the periphery of the apparatus and the web. Further, since the frictional resistance is small, it is possible to suppress the generation of static electricity, and it is possible to prevent the web being conveyed from being contaminated and to be stably conveyed. Furthermore, since the difference in tension generated between the left and right in the width direction of the web can be reduced, it is also possible to effectively prevent wrinkles on the web and damage to the web.
- FIG. 1 is a schematic view showing a state in which the web traveling direction is changed by the first embodiment of the web traveling direction changing device of the present invention.
- FIG. 2 is a perspective view showing a state in which the traveling direction of the web is changed by the first embodiment of the web traveling direction changing device of the present invention.
- FIG. 3 is a schematic diagram showing a plan view of the web traveling direction changing device shown in FIG. 2.
- FIG. 4 is a schematic diagram showing a side view of the web traveling direction changing device shown in FIG. 2.
- 5A and 5B are explanatory views showing a preferred arrangement of rolls, in which FIG. 5A is a plan view of a pair of rolls adjacent in the web conveyance direction from above, and FIG. 5B is a diagram showing a web placed on the pair of rolls.
- FIG. 6 is a perspective view of a second embodiment of the web travel direction changing device of the present invention.
- FIG. 7 is a schematic diagram showing a side view of the web traveling direction changing device shown in FIG. 6.
- FIG. 8 is a perspective view showing another preferred example of the web traveling direction changing device.
- the present invention suppresses the frictional resistance with the traveling direction changing device when changing the traveling direction of the web that is continuously conveyed, thereby reducing web width reduction and adding paper dust or web generated from the web.
- the present invention relates to a method and an apparatus for changing the running direction of a web, which can reduce contamination of the apparatus and web by an object (such as oil).
- the web travel direction changing device 1 is a constituent material of these absorbent articles when a large number of absorbent articles such as disposable diapers and napkins are continuously formed.
- a sheet material such as a nonwoven fabric or a film is continuously fed from the raw roll 100 and traveled, and the traveling direction of the belt-like web 10 that is a continuous body of such a sheet material is changed to, for example, 90 degrees, 110 degrees, etc. And it is used when supplying continuously to the next process of absorbent article manufacture.
- FIG. 1 is a constituent material of these absorbent articles when a large number of absorbent articles such as disposable diapers and napkins are continuously formed.
- a sheet material such as a nonwoven fabric or a film is continuously fed from the raw roll 100 and traveled, and the traveling direction of the belt-like web 10 that is a continuous body of such a sheet material is changed to, for example, 90 degrees, 110 degrees, etc. And it is used when supplying continuously to the next process of absorbent article manufacture.
- a roll denoted by reference numeral 100 ′ is a spare original roll for use after the web 10 is unwound from the original roll 100.
- reference numeral 5 denotes a tension control unit, which includes a dancer roll 51 for tension control and a position detection means (not shown) for the dancer roll 51.
- the tension control unit 5 performs tension control by adjusting the unwinding amount of the web 10 from the web roll 100 or the traveling speed of the web 10 based on the position detection of the dancer roll 51.
- the web travel direction changing device 1 has a group of rolls in which a plurality of rotatable rolls 20 and 30 are radially arranged when viewed in the vertical direction from above.
- the first embodiment has a roll axis (rotating axis) arranged horizontally, and can change the running direction of the web in a horizontal plane.
- the roll group of the web traveling direction conversion device 1 it is preferable to provide a step between the roll 20 and the roll 30, and the step between the roll groups in the first embodiment constitutes the upper roll group 2.
- the roll 20 and the roll 30 constituting the lower roll group 3 are caused by different positions (height positions) in the vertical direction (Z-axis direction).
- the position through which the web 10 is passed is changed between the roll 20 and the lower roll group 3 constituting the upper roll group 2.
- the roll 20 adjacent to the traveling direction of the web 10 and wound around the upper peripheral surface
- the roll 30 around which the web 10 is wound around the lower peripheral surface has different positions in the same direction (for example, a position in the height direction) on the upper peripheral surface and the lower peripheral surface of the rolls 20 and 30, It can be said that the rolls 20 and 30 have a step. For example, in the case of FIG.
- the position in the same direction is different from the position of the upper peripheral surface of the roll 30 below the upper peripheral surface of the roll 20 in the Z-axis direction.
- the direction from the roll 20 located at one end of the apparatus 1 to the roll 30 located at the other end is the traveling direction of the web 10.
- the apparatus 1 of the first embodiment has the rolls 20 and 30 arranged radially when the web travel direction conversion apparatus 1 is viewed in plan.
- a plurality of rolls 20 are arranged radially on the first XY plane 2 ⁇ / b> A, and the Z axis direction from the first XY plane 2 ⁇ / b> A formed by the rolls 20.
- a plurality of rolls 30 are arranged radially on the second XY plane 3 ⁇ / b> A formed below at an arbitrary distance.
- the first XY plane 2 ⁇ / b> A and the second XY plane 3 ⁇ / b> A are planes on which the axial centers of the roll 20 and the roll 30 are located, respectively.
- the first XY plane 2A and the second XY plane 3A are parallel to each other. That is, when the web travel direction conversion device 1 is viewed from the side, each roll 20 is in the same position (height) in the side view (Z-axis direction), and each roll 30 is the same in the side view (Z-axis direction). At the position (height), the plurality of rolls 20 and the plurality of rolls 30 have different positions (heights) in the Z direction.
- the plan view is a state in which the web traveling direction conversion device 1 is observed from above in the vertical direction, and refers to an XY plane that is a horizontal plane.
- the side view is a state in which the web travel direction conversion device 1 is observed from the side in the horizontal direction, and is an observation from a direction orthogonal to the Z axis that is the vertical axis.
- a plurality of rolls 20 and rolls 30 form roll groups 2 and 3, respectively.
- the roll group of the apparatus 1 is composed of an upper roll group 2 that is in an upper position in the vertical direction (Z-axis direction) and a lower roll group 3 that is in a lower position than the upper roll group 2 in the roll group.
- the lower surface of the web 10 is in contact with the upper peripheral surface of each roll 20, and the lower roll group 3 is in the lower position in the roll group of the apparatus 1, and the web 10 is disposed on the lower peripheral surface of each roll 30.
- the upper surface of touches are described by the upper roll group 2 that is in an upper position in the vertical direction (Z-axis direction) and a lower roll group 3 that is in a lower position than the upper roll group 2 in the roll group.
- the upper surface of the web 10 is a surface in the same direction as the floor surface on which the web traveling direction converting device 1 is installed, and the lower surface of the web 10 is a surface facing the floor surface on which the web traveling direction converting device 1 is installed.
- the upper roll group 2 and the lower roll group 3 have a step in the height direction and are separated from each other. “Separated” means that the lower peripheral surface of the roll 20 is located above the lower peripheral surface of the roll 20 and the upper peripheral surface of the roll 30, and the lower peripheral surface of the roll 20 and the upper peripheral surface of the roll 30 Are different in position (height position), for example, have a distance in the Z-axis direction as shown in FIG.
- the distance D (see FIG. 4) of the roll group is preferably 0.25 to 20 times the web width, more preferably 0.5 to 15 times, particularly 1 It is particularly preferably from 0 to 10 times.
- each roll 20 of the upper roll group 2 and each roll 30 of the lower roll group 3 are in the same position when the two roll groups 2 and 3 are overlapped from above and viewed in plan. not exist.
- Each roll 20 is at the same height (position in the Z-axis direction) in a side view, and each roll 30 is also at the same height in a side view.
- Roll 20 and roll 30 are rotatable rolls, preferably free rolls that do not have a rotational drive source. Each of the rolls 20 and 30 is connected to the shaft core by a bearing so as to be rotatable.
- the rolls 20 and 30 preferably have a small rotational moment, and therefore are preferably formed of a lightweight material such as an aluminum alloy, resin, or carbon graphite.
- the roll cores 20 and 30 are fixed to two fan-like plates (not shown) each having one end parallel to the XY plane, and the two plates are parallel to the Z-axis direction. It is fixed to a book fixing bar (not shown).
- the fixing bar is fixed to the conveyance process (conveyance path) of the web 10 by a jig or the like (not shown), and the device 1 is incorporated into the absorbent article manufacturing process.
- the two plates can move along the fixing bar, and the height of the upper roll group 2 and the lower roll group 3 in the Z-axis direction can be adjusted.
- the roll 20 is fixed radially to the plate, but the plurality of rolls 20 are fixed so that the angle on the XY plane can be adjusted around the fixing bar, and the roll 30 is also another plate. It is fixed to.
- each roll 20,30 does not shift
- the plurality of rolls 20 are arranged radially at the same angle, and the plurality of rolls 30 are also arranged radially at the same angle.
- the extension lines of the roll axes of the rolls 20 and 30 intersect with the fixing bars, that is, in a relationship intersecting at one line L1 (see FIG. 2) orthogonal to the roll axis. And the extension line of the roll axis intersects at one point (point P1 for the roll 20 and point P2 for the roll 30 and see FIG. 2), and angle adjustment between the rolls can be facilitated.
- the straight line L1 connecting the intersection point P1 of the extension line of the axis of each roll constituting the upper roll group 2 and the intersection point P2 of the extension line of the axis of each roll constituting the lower roll group 3 is It is orthogonal to the first XY plane 2A and the second XY plane 3A.
- the roll group of the apparatus 1 includes two rolls 20A and 30A, which are the outermost rolls in a plan view, which are a first roll at a web supply position to the apparatus 1 and a final roll at a discharge position to the next process.
- the direction change angle is determined.
- the angle ⁇ (see FIG. 3) of the two outermost rolls 20A and 30A in plan view is not particularly limited because it depends on a desired change angle, but considering the size, efficiency, etc. of the apparatus 1, it is 45 to 135 degrees. Is preferable, and 80 to 100 degrees is particularly preferable.
- the straight lines L2 to L4 in FIG. 5 extend in the vertical direction (Z-axis direction in FIG. 2).
- the angle ⁇ 1 [(see FIG. 5 (a)) formed by the rotation axis of one roll 20 and the next roll 30 is preferably larger than 0 ° and not larger than 30 °, and particularly preferably 5 ° to 15 °. preferable.
- Patent Document 4 since the number of times the web is passed between the pass rollers is small, it is necessary to increase the angle of the adjacent pass rollers when making a large change in direction. .
- FIGS. 6 and 7 a web traveling direction changing device 1 ′ according to a second embodiment of the present invention will be described with reference to FIGS. 6 and 7.
- Components different from those of the web travel direction changing device 1 of the first embodiment described above will be mainly described, and similar components will be denoted by the same reference numerals and description thereof will be omitted.
- the description of the web travel direction changing device 1 of the first embodiment is appropriately applied.
- 6 is a perspective view of the web traveling direction changing device 1 ′ viewed obliquely from above
- FIG. 7 is a corresponding view of FIG. 4.
- each roll 20 constituting the upper roll group 2 is attached to the fixing bar 4 at equal intervals in the height direction, and the roll 30 constituting the lower roll group 3 is fixed below the upper roll group 2.
- the bars 4 are attached at equal intervals in the height direction. That is, each roll 20 and each roll 30 have different positions (heights) along the Z-axis direction (vertical direction).
- Each of the rolls 20 and 30 has a roll axis (rotating axis) arranged perpendicular to the fixing bar 4, and the height of the rolls 20 and 30 can be adjusted with respect to the fixing bar 4.
- each of the rolls 20 and 30 is attached so as to be able to rotate and move with respect to a surface orthogonal to the fixing bar 4 and can be arranged radially extending around the fixing bar 4.
- the roll 20 ⁇ / b> A and the roll 20 ⁇ / b> B are the outermost two rolls in plan view.
- the heights of the rolls 20 and 30 are gradually lowered in the running direction of the web 10 as shown in FIG. 7, and the web roll is disposed at a high position.
- the process after changing the traveling direction by 1 ′ is at a low position, it is easy to secure the space of the apparatus.
- the web 10 in a transported state travels in a bellows-like manner over a roll group composed of a plurality of rotatable rolls, so that the supply position A and the discharge position B to the roll group are The direction of web travel has been changed.
- the web 10 is unwound from the original fabric 100, and the web 10 that has been transported is changed in traveling direction by about 90 degrees by the apparatus 1, and is transported to the next process.
- the web 10 is supplied to the apparatus 1 as shown in FIG. 2 and supplied to the upper surface of the roll 20 so that the traveling direction of the web is substantially perpendicular to the axial direction of the first roll 20.
- the web 10 is advanced below the apparatus 1 and is passed over the roll 30 of the lower roll group 30.
- a web is wound around the lower peripheral surface.
- the web 10 is wound around the upper peripheral surface of the roll 20 of the upper roll group 2, and is wound around the roll in a bellows shape in the roll group along the traveling direction of the web.
- each roll of the apparatus 1 does not have a rotation drive source, the web 10 travels and is transported by feeding the original fabric and driving other feed rolls (not shown).
- the web 10 is twisted between the roll 20 and the roll 30 adjacent to each other in the traveling direction of the web 10 or between the roll 30 and the roll 20.
- the web 10 stretched over the roll 20 has a traveling direction of the web 10 approximately the axial direction of the roll 30 (or the roll 20) that is spanned next in the traveling direction. It can be crossed so as to be orthogonal.
- the degree to which the web 10 is twisted is changed by the angle between the adjacent roll 20 and roll 30.
- the preferred angle between the adjacent roll 20 and roll 30 (the aforementioned angle ⁇ 1) is 30 degrees or less, more preferably 15 degrees or less. Note that the term “substantially orthogonal” does not need to be exactly 90 degrees with respect to the axial direction, but allows an intersection at 80 to 100 degrees.
- the traveling direction of the web 10 gradually changes as the web 10 travels on a roll group including the roll 20 of the upper roll group 2 and the roll 30 of the lower roll group 3 whose angles are gradually changed radially. Then, when the roll at the discharge position is exceeded, the traveling direction is greatly changed at the supply position to the apparatus 1 and the discharge position.
- the web 10 since the web 10 has a difference between the front surface and the back surface, the front and back surfaces of the web 10 after feeding the web are not changed because the top and bottom surfaces of the web 10 are not interchanged between the supply position to the roll group and the discharge position. There is also an advantage that web conveyance can be performed without concern.
- the web 10 is not particularly limited, but when the present invention is used in the manufacturing process of the absorbent article, it is a constituent material for the absorbent article, and examples thereof include paper, nonwoven fabric, and plastic sheet.
- the web 10 is not limited to a single layer, and a composite material obtained by laminating a plurality of sheets or joining in the width direction may be used.
- a flexible material such as a nonwoven fabric or paper
- the effect of the present invention becomes remarkable.
- a nonwoven fabric is used as the web 10
- the reason for this is as follows.
- Various oil agents including a hydrophilizing agent are generally applied to the nonwoven fabric.
- the web 10 has a lower frictional resistance against the traveling direction changing device than the conventional turn bar.
- the frictional resistance is small, the generation of static electricity can be suppressed, contamination of the web 10 being conveyed can be prevented, and stable conveyance can be achieved.
- the web 10 can run while being stretched so as to be substantially orthogonal to the axial direction of the rolls 20 and 30, the web 10 can have a low frictional resistance with respect to the rolls 20 and 30, and can meander. Can be prevented.
- the roll group is divided into the roll 20 of the upper roll group 2 and the roll 30 of the lower roll group 3, so that the height adjustment is easy. It is easy to change the height according to web characteristics and installation space constraints.
- each roll is not limited to being horizontal, and a group of rolls may be arranged on the YZ plane as shown in FIG. 8 to turn the web 10 from the lateral direction to the upward direction.
- the Z direction is parallel to the vertical direction.
- a line L1 ′ corresponding to the line L1 in FIG. 2 is arranged horizontally, and the web conveyed horizontally is composed of the upper roll group 2 and the lower roll group 3. After the conveyance direction is changed by a plurality of rolls, the sheet is led upward in the vertical direction.
- the roll group 2 and 8 can be used in a state in which the straight lines L1 and L1 ′ are directed in an arbitrary direction in the three-dimensional space.
- the roll group may be fixed, or one of them may be movable in the vertical direction. In this case, it functions as an accumulator for web accumulation and a dancer roll for web transport tension control. Further, the rolls of the upper roll group 2 or the lower roll group 3 may be made to run with air holes and the web 10 floating.
- the upper roll group 2 may be composed of two rolls or four or more rolls, and the lower roll group 3 may be composed of two rolls or four or more rolls.
- the total number of rotatable rolls constituting the traveling direction changing device is preferably 4 or more, more preferably 5 or more, and particularly preferably 6 or more.
- the upper limit is not particularly limited, but is 20 for example.
- the roll 20 and the roll 30 each have a web laid in a bellows shape in the vertical direction for each roll, but the roll 20 and the roll 30 may be wound every other roll. Further, the web may be continuously hung on a plurality of continuous rolls 20 or 30, for example, two rolls 20. When it hangs on a plurality of continuous rolls, it is preferable to adjust the angle and interval so that the rolls are close to parallel. However, it is preferable that the roll 20 and the roll 30 are each laid in a bellows shape in the vertical direction for each roll from the viewpoint that the strain applied to the web is made uniform and wrinkles are less likely to occur.
- the web 10 is supplied to the roll 20 of the upper roll group 2 and discharged from the roll 30 of the lower roll group 3.
- the web 10 is supplied to the roll 30 of the lower roll group 3, for example. Or may be discharged from the roll 20 of the upper roll group 2.
- the supply position of the web to the apparatus 1 and the discharge position of the web from the apparatus can be freely designed.
- the web running direction changing device can be used for various uses such as surgical clothes and cleaning sheets in addition to the use of the web constituting the absorbent article. Moreover, it can be used not only in the process of manufacturing these articles but also in processes such as printing and drying.
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- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
In a web traveling direction changing method, a web (10) is set in a zigzag fashion on a roll group in which a plurality of freely rotatable rolls are radially disposed and is allowed to travel, thereby changing a web traveling direction between at an input position (A) into the roll group and at an output position (B). For the web (10), it is preferable that the top and bottom surfaces of the web (10) are not reversed between at the input position into the roll group and at the output position. It is also preferable that the web (10) is set to the roll group so as to travel while one surface which is in contact with the roll among the two surfaces is being changed alternately between the top and bottom surfaces.
Description
本発明は、ウェブの走行方向変更方法、およびウェブの走行路に設けられてウェブの走行方向を変更する装置に関する。
The present invention relates to a method for changing the traveling direction of a web and a device that is provided in a traveling path of the web and changes the traveling direction of the web.
不織布、織布、紙、金属箔、樹脂フィルム等からなる帯状のシート材料の連続体であるウェブを連続搬送しつつ、これの走行方向を変更させる装置として、ターンバーを用いたものが一般的に知られている(例えば、特許文献1、特許文献2参照)。一方、ターンバーを用いたウェブの走行方向変換装置は、ターンバーが回転しないことから、これに巻回されるウェブとの間に摩擦力が生じることになり、この摩擦力によってウェブに張力の変動が発生し、ウェブに損傷を与えたり、ウェブに幅縮みや蛇行を発生させる場合がある。更に、この摩擦力によって、ウェブから紙粉やウェブ添加物(油剤等)が発生し易くなり、装置やウェブへの汚染が生じることもあった。
A device using a turn bar is generally used as a device for changing the running direction of a web, which is a continuous belt-like sheet material made of nonwoven fabric, woven fabric, paper, metal foil, resin film, etc. Known (for example, refer to Patent Document 1 and Patent Document 2). On the other hand, in the web traveling direction changing device using the turn bar, the turn bar does not rotate. Therefore, a frictional force is generated between the turnbar and the web wound around the turnbar. May occur, causing damage to the web or causing web shrinkage or meandering. Furthermore, this frictional force tends to generate paper dust and web additives (oil agent etc.) from the web, which may cause contamination of the apparatus and web.
このため、特許文献1や特許文献2の走行方向変換装置によれば、ターンバーの表面に形成した多数の空気吹き出し孔からエアーを噴出することにより、ウェブをターンバーから浮上させつつ方向変換させる方法が採用されている。特に、特許文献1には、ウェブが印刷物の場合は印刷物に汚れが発生しないように、圧搾空気によりウェブに充分な浮上量を確保し、ウェブとターニングバー(ターンバー)の接触を防止するため、ウェブの搬送方向を転換させるターニングバー部において、表面に空気噴出ノズルを備えることが提案されている。しかしながら、特許文献1や特許文献2の走行方向変換装置によれば、空気を透過させない材質の紙、金属箔、樹脂フィルム等によるウェブに対しては有効であるが、例えば空気を透過させる不織布や織布等によるウェブについては、摩擦力の低減を効果的に図ることが困難である。
For this reason, according to the traveling direction conversion apparatus of patent document 1 or patent document 2, there is a method for changing the direction of the web while floating from the turn bar by ejecting air from a large number of air blowing holes formed on the surface of the turn bar. It has been adopted. In particular, in Patent Document 1, when the web is a printed material, the printed material is secured with a sufficient flying height so that the printed material is not soiled, and the web and the turning bar (turn bar) are prevented from contacting each other. It has been proposed to provide an air ejection nozzle on the surface of a turning bar that changes the web conveyance direction. However, according to the traveling direction conversion device of Patent Literature 1 and Patent Literature 2, it is effective for a web made of paper, metal foil, resin film, etc. that does not allow air to pass through. For webs made of woven fabric or the like, it is difficult to effectively reduce the frictional force.
また、特許文献3には、ウェブの走行方向を変換させる際の張力の変動を減少させ、連続して搬送されるウェブに皺等を生じさせることなく安定して方向変換できるウェブ走行方向変換装置として、4本の棒状部材と、これらの4本の棒状部材に巻回されて無端状に回転移動するウェブ搬送ベルトと、ウェブ搬送ベルトの駆動手段とを備え、連続供給されるウェブを搬送ベルトの搬送面に載せた状態で曲折させることにより、ウェブの走行方向を変換させる装置が提案されている。しかしながら、この装置によれば、装置への供給時と排出時のウェブの面と変更したい走行角度との関係が自由にならず、また、搬送装置においてスペースが必要となる課題があった。
Further, Patent Document 3 discloses a web traveling direction conversion device that reduces fluctuations in tension when changing the traveling direction of a web and can stably change the direction without causing wrinkles or the like on a continuously conveyed web. As an example, there are provided four rod-shaped members, a web conveying belt that is wound around these four rod-shaped members and rotationally moved in an endless manner, and a web conveying belt driving means. There has been proposed an apparatus for changing the traveling direction of a web by bending it while being placed on the transport surface. However, according to this apparatus, there is a problem that the relationship between the web surface at the time of supply to the apparatus and at the time of discharge and the travel angle to be changed is not free, and a space is required in the transport apparatus.
ウェブの走行方向を変更させる別の技術として、複数本のパスローラを用い、それらのうち、上下に隣接配置された一対のパスローラを、非平行姿勢に配置して帯状金属板の進行方向を所定の方向に変換する方法が提案されている(特許文献4参照)。しかし、この方法では、ウェブをパスローラ間に掛け渡す回数が少ないため、大きな方向転換をする場合には、隣り合うパスローラの角度を大きくする必要がある。その場合、ウェブは幅方向の左右で発生するテンションの違いが顕著になる。その結果、上下のロールの角度を大きく配置させた場合、ウェブの種類によってはウェブに皺を発生させたり、ウェブにダメージを与えることがある。
As another technique for changing the running direction of the web, a plurality of pass rollers are used, and among them, a pair of pass rollers arranged adjacent to each other in the vertical direction is arranged in a non-parallel posture so that the traveling direction of the band-shaped metal plate is predetermined. A method of converting to a direction has been proposed (see Patent Document 4). However, in this method, since the number of times of passing the web between the pass rollers is small, it is necessary to increase the angle of the adjacent pass rollers when making a large change in direction. In that case, the difference in tension generated between the left and right in the width direction becomes significant. As a result, when the upper and lower roll angles are arranged large, wrinkles may be generated on the web or the web may be damaged depending on the type of the web.
本発明は、複数の回転自在ロールが放射状に配置されているロール群に対し、ウェブを蛇腹状に掛け渡して走行させることで、ロール群への供給位置と排出位置とでウェブの走行方向を異ならせるウェブの走行方向変更方法を提供するものである。
The present invention allows the web to travel in a bellows-like manner over a group of rolls in which a plurality of rotatable rolls are arranged in a radial manner, so that the web traveling direction can be changed between the supply position to the roll group and the discharge position. The present invention provides a method for changing the running direction of the web to be different.
また、本発明は、複数の回転自在ロールが放射状に配置されているロール群を有し、該ロール群にウェブを蛇腹状に掛け渡して使用される、ウェブの走行方向変更装置を提供するものである。
Further, the present invention provides a web traveling direction changing device that has a roll group in which a plurality of rotatable rolls are arranged radially, and is used by wrapping a web around the roll group in a bellows shape. It is.
本発明のウェブの走行方向変更方法およびウェブの走行方向変更装置によれば、従来のターンバーと比較し、走行方向変更装置に対するウェブの摩擦抵抗が小さいため、ウェブへのダメージが少なく、またウェブからの紙粉やウェブ添加物(油剤等)等が装置周辺やウェブを付着して汚染することを防止することができる。また、摩擦抵抗が小さいため、静電気の発生を抑えることができ、搬送されるウェブの汚染の防止や安定した搬送ができる。更に、ウェブの幅方向の左右で発生するテンションの差を小さくすることができるので、ウェブに皺が発生したり、ウェブにダメージが加わることを効果的に防止することもできる。
According to the web traveling direction changing method and the web traveling direction changing device of the present invention, the web has less frictional resistance against the running direction changing device compared to the conventional turn bar, and therefore, the web is less damaged, and It is possible to prevent paper dust, web additives (oil agent, etc.) from adhering to and contaminating the periphery of the apparatus and the web. Further, since the frictional resistance is small, it is possible to suppress the generation of static electricity, and it is possible to prevent the web being conveyed from being contaminated and to be stably conveyed. Furthermore, since the difference in tension generated between the left and right in the width direction of the web can be reduced, it is also possible to effectively prevent wrinkles on the web and damage to the web.
本発明は、連続して搬送されるウェブの走行方向を変換させる際に、走行方向変更装置との摩擦抵抗を抑えることで、ウェブの幅縮みが少ない上、ウェブから発生する紙粉やウェブ添加物(油剤等)による装置やウェブへの汚染等を少なくする事が出来るウェブの走行方向変更方法および装置に関するものである。
The present invention suppresses the frictional resistance with the traveling direction changing device when changing the traveling direction of the web that is continuously conveyed, thereby reducing web width reduction and adding paper dust or web generated from the web. The present invention relates to a method and an apparatus for changing the running direction of a web, which can reduce contamination of the apparatus and web by an object (such as oil).
以下本発明を、その好ましい実施形態に基づき図面を参照しながら説明する。
図1に示す本発明の好ましい第1実施形態に係るウェブ走行方向変更装置1は、例えば使い捨ておむつやナプキン等の吸収性物品を多数連続形成する際に、これらの吸収性物品の構成材料である不織布やフィルム等のシート材料を原反ロール100から連続的に送り出して走行させると共に、このようなシート材料の連続体である帯状のウェブ10の走行方向を、例えば90度、110度等に変更して、吸収性物品製造の次の工程に連続供給する際に用いられるものである。図1中、符号100’で示すロールは、原反ロール100からウェブ10をほぼ全量巻きだした後に使用するための予備の原反ロールである。
また、図1中、符号5は、テンション制御部であり、テンションコントロールのためのダンサーロール51および該ダンサーロール51の位置検出手段(図示せず)を備えている。テンション制御部5は、ダンサーロール51の位置検出に基づき原反ロール100からのウェブ10の巻き出し量またはウェブ10走行速度を調節してテンションコントロールを行っている。 The present invention will be described below based on preferred embodiments with reference to the drawings.
The web traveldirection changing device 1 according to the first preferred embodiment of the present invention shown in FIG. 1 is a constituent material of these absorbent articles when a large number of absorbent articles such as disposable diapers and napkins are continuously formed. A sheet material such as a nonwoven fabric or a film is continuously fed from the raw roll 100 and traveled, and the traveling direction of the belt-like web 10 that is a continuous body of such a sheet material is changed to, for example, 90 degrees, 110 degrees, etc. And it is used when supplying continuously to the next process of absorbent article manufacture. In FIG. 1, a roll denoted by reference numeral 100 ′ is a spare original roll for use after the web 10 is unwound from the original roll 100.
In FIG. 1,reference numeral 5 denotes a tension control unit, which includes a dancer roll 51 for tension control and a position detection means (not shown) for the dancer roll 51. The tension control unit 5 performs tension control by adjusting the unwinding amount of the web 10 from the web roll 100 or the traveling speed of the web 10 based on the position detection of the dancer roll 51.
図1に示す本発明の好ましい第1実施形態に係るウェブ走行方向変更装置1は、例えば使い捨ておむつやナプキン等の吸収性物品を多数連続形成する際に、これらの吸収性物品の構成材料である不織布やフィルム等のシート材料を原反ロール100から連続的に送り出して走行させると共に、このようなシート材料の連続体である帯状のウェブ10の走行方向を、例えば90度、110度等に変更して、吸収性物品製造の次の工程に連続供給する際に用いられるものである。図1中、符号100’で示すロールは、原反ロール100からウェブ10をほぼ全量巻きだした後に使用するための予備の原反ロールである。
また、図1中、符号5は、テンション制御部であり、テンションコントロールのためのダンサーロール51および該ダンサーロール51の位置検出手段(図示せず)を備えている。テンション制御部5は、ダンサーロール51の位置検出に基づき原反ロール100からのウェブ10の巻き出し量またはウェブ10走行速度を調節してテンションコントロールを行っている。 The present invention will be described below based on preferred embodiments with reference to the drawings.
The web travel
In FIG. 1,
図2~図4に示すように、ウェブ走行方向変換装置1は、複数本の回転自在ロール20、30が、上方から鉛直方向に見て放射状に配置されたロール群を有している。第1実施形態における各ロール20,30・・は、ロール軸(回転軸)が水平に配置されており、水平面内におけるウェブの走行方向を変更可能である。また、ウェブ走行方向変換装置1のロール群においては、ロール20とロール30との間に段差を設けるのが好ましく、第1実施形態におけるロール群の間の段差は、上位ロール群2を構成するロール20と、下位ロール群3を構成するロール30とで、鉛直方向(Z軸方向)における位置(高さ位置)が異なることによって生じている。すなわち、装置1の一方の端部に位置するロール20から他方の端部に位置するロール30に向かって、ウェブ10を通す位置を、上位ロール群2を構成するロール20と下位ロール群3を構成するロール30とで、上側と下側に入れ替えながら蛇腹状にウェブ10を掛け渡したときに、ウェブ10の走行方向に隣接する、ウェブ10が上周面に巻き掛けられたロール20と、ウェブ10が下周面に巻き掛けられたロール30とが、それらのロール20,30の上周面及び下周面において、同じ方向での位置(例えば高さ方向での位置)が異なる場合、それらのロール20,30は段差を有している状態であると言える。同じ方向に位置が異なるとは、例えば図2の場合、ロール30の上周面がロール20の上周面に対してZ軸方向の下方にあり、同様にロール30の下周面もロール20の下周面に対してZ軸方向の下方にある状態を意味する。なお、装置1の一方の端部に位置するロール20から他方の端部に位置するロール30に向かう方向は、ウェブ10の走行方向である。
As shown in FIGS. 2 to 4, the web travel direction changing device 1 has a group of rolls in which a plurality of rotatable rolls 20 and 30 are radially arranged when viewed in the vertical direction from above. Each roll 20, 30,... In the first embodiment has a roll axis (rotating axis) arranged horizontally, and can change the running direction of the web in a horizontal plane. Moreover, in the roll group of the web traveling direction conversion device 1, it is preferable to provide a step between the roll 20 and the roll 30, and the step between the roll groups in the first embodiment constitutes the upper roll group 2. The roll 20 and the roll 30 constituting the lower roll group 3 are caused by different positions (height positions) in the vertical direction (Z-axis direction). That is, from the roll 20 located at one end of the apparatus 1 toward the roll 30 located at the other end, the position through which the web 10 is passed is changed between the roll 20 and the lower roll group 3 constituting the upper roll group 2. When the web 10 is wound in an accordion shape while being switched between the upper side and the lower side with the roll 30 to be configured, the roll 20 adjacent to the traveling direction of the web 10 and wound around the upper peripheral surface, When the roll 30 around which the web 10 is wound around the lower peripheral surface has different positions in the same direction (for example, a position in the height direction) on the upper peripheral surface and the lower peripheral surface of the rolls 20 and 30, It can be said that the rolls 20 and 30 have a step. For example, in the case of FIG. 2, the position in the same direction is different from the position of the upper peripheral surface of the roll 30 below the upper peripheral surface of the roll 20 in the Z-axis direction. Means a state below the lower peripheral surface in the Z-axis direction. The direction from the roll 20 located at one end of the apparatus 1 to the roll 30 located at the other end is the traveling direction of the web 10.
第1実施形態の装置1は、詳細には、図3に示すように、ウェブ走行方向変換装置1を平面視したとき、ロール20とロール30は放射状に配置されている。
図2のように互いに直交するXYZの座標軸を設けたとき、第1のXY平面2Aにおいて複数本のロール20が放射線状に配置され、ロール20の構成する第1のXY平面2AからZ軸方向に任意の距離を置いて下方に形成された第2のXY平面3Aにおいて複数本のロール30が放射状に配置されている。なお、第1のXY平面2A及び第2のXY平面3Aは、それぞれロール20とロール30の軸芯が位置する平面である。第1のXY平面2Aと第2のXY平面3Aとは平行になっている。つまり、ウェブ走行方向変換装置1を側面視したとき、各ロール20は側面視(Z軸方向)に同じ位置(高さ)にあり、また、各ロール30は側面視(Z軸方向)に同じ位置(高さ)にあり、複数本のロール20と複数本のロール30は、Z方向の位置(高さ)が異なっている。ロール20及びロール30をこのように配置することで、ウェブにかかるひずみを均一化でき、ウェブにしわが発生しにくくなり、また、複数本のロール20と複数本のロール30をまとめて位置調節しやすいという有利な効果が奏される。なお、図1~図4には、ロール20、30がそれぞれ3本ずつ設けられている例を示したが、ロール20、30の本数には特に制限はない。 In detail, as shown in FIG. 3, theapparatus 1 of the first embodiment has the rolls 20 and 30 arranged radially when the web travel direction conversion apparatus 1 is viewed in plan.
When XYZ coordinate axes orthogonal to each other are provided as shown in FIG. 2, a plurality ofrolls 20 are arranged radially on the first XY plane 2 </ b> A, and the Z axis direction from the first XY plane 2 </ b> A formed by the rolls 20. A plurality of rolls 30 are arranged radially on the second XY plane 3 </ b> A formed below at an arbitrary distance. The first XY plane 2 </ b> A and the second XY plane 3 </ b> A are planes on which the axial centers of the roll 20 and the roll 30 are located, respectively. The first XY plane 2A and the second XY plane 3A are parallel to each other. That is, when the web travel direction conversion device 1 is viewed from the side, each roll 20 is in the same position (height) in the side view (Z-axis direction), and each roll 30 is the same in the side view (Z-axis direction). At the position (height), the plurality of rolls 20 and the plurality of rolls 30 have different positions (heights) in the Z direction. By arranging the roll 20 and the roll 30 in this way, the strain applied to the web can be made uniform, the web is less likely to wrinkle, and the positions of the plurality of rolls 20 and the plurality of rolls 30 are adjusted together. The advantageous effect that it is easy is produced. 1 to 4 show an example in which three rolls 20 and 30 are provided, respectively, the number of rolls 20 and 30 is not particularly limited.
図2のように互いに直交するXYZの座標軸を設けたとき、第1のXY平面2Aにおいて複数本のロール20が放射線状に配置され、ロール20の構成する第1のXY平面2AからZ軸方向に任意の距離を置いて下方に形成された第2のXY平面3Aにおいて複数本のロール30が放射状に配置されている。なお、第1のXY平面2A及び第2のXY平面3Aは、それぞれロール20とロール30の軸芯が位置する平面である。第1のXY平面2Aと第2のXY平面3Aとは平行になっている。つまり、ウェブ走行方向変換装置1を側面視したとき、各ロール20は側面視(Z軸方向)に同じ位置(高さ)にあり、また、各ロール30は側面視(Z軸方向)に同じ位置(高さ)にあり、複数本のロール20と複数本のロール30は、Z方向の位置(高さ)が異なっている。ロール20及びロール30をこのように配置することで、ウェブにかかるひずみを均一化でき、ウェブにしわが発生しにくくなり、また、複数本のロール20と複数本のロール30をまとめて位置調節しやすいという有利な効果が奏される。なお、図1~図4には、ロール20、30がそれぞれ3本ずつ設けられている例を示したが、ロール20、30の本数には特に制限はない。 In detail, as shown in FIG. 3, the
When XYZ coordinate axes orthogonal to each other are provided as shown in FIG. 2, a plurality of
本実施形態において、平面視とは、ウェブ走行方向変換装置1を上方から鉛直方向に観察した状態であり、水平面であるXY平面を指す。また、側面視とは、ウェブ走行方向変換装置1を側方から水平方向に観察した状態であり、鉛直軸であるZ軸に直交する方向からの観察である。
In the present embodiment, the plan view is a state in which the web traveling direction conversion device 1 is observed from above in the vertical direction, and refers to an XY plane that is a horizontal plane. Further, the side view is a state in which the web travel direction conversion device 1 is observed from the side in the horizontal direction, and is an observation from a direction orthogonal to the Z axis that is the vertical axis.
複数本のロール20とロール30は、それぞれロール群2,3を形成している。詳細には、装置1のロール群は、ロール群の中で鉛直方向(Z軸方向)に上方位置にある上位ロール群2と、上位ロール群2より下方位置にある下位ロール群3とで構成されている。上位ロール群2は、各ロール20の上周面にウェブ10の下面が接触し、下位ロール群3は、装置1のロール群の中で下方位置にあり各ロール30の下周面にウェブ10の上面が接触する。ウェブ10の上面はウェブ走行方向変換装置1が設置されている床面と同じ方向の面であり、ウェブ10の下面はウェブ走行方向変換装置1が設置されている床面に向いた面である。
ウェブ10のスムーズな方向転換の観点から、上位ロール群2と下位ロール群3とは高さ方向に段差を有し、また、離間しているのが一層好ましい。離間しているとは、ロール20の下周面とロール30の上周面とでロール20の下周面の方が上方に有り、且つロール20の下周面とロール30の上周面との位置(高さ位置)が異なること、例えば、図2のようにZ軸方向に距離を有していることである。
また、同様の観点から、ロール群の距離D(図4参照)は、ウェブ幅の0.25~20倍であることが好ましく、0.5倍~15倍であることが更に好ましく、特に1.0~10倍であることが特に好ましい。 A plurality ofrolls 20 and rolls 30 form roll groups 2 and 3, respectively. Specifically, the roll group of the apparatus 1 is composed of an upper roll group 2 that is in an upper position in the vertical direction (Z-axis direction) and a lower roll group 3 that is in a lower position than the upper roll group 2 in the roll group. Has been. In the upper roll group 2, the lower surface of the web 10 is in contact with the upper peripheral surface of each roll 20, and the lower roll group 3 is in the lower position in the roll group of the apparatus 1, and the web 10 is disposed on the lower peripheral surface of each roll 30. The upper surface of touches. The upper surface of the web 10 is a surface in the same direction as the floor surface on which the web traveling direction converting device 1 is installed, and the lower surface of the web 10 is a surface facing the floor surface on which the web traveling direction converting device 1 is installed. .
From the viewpoint of smooth direction change of theweb 10, it is more preferable that the upper roll group 2 and the lower roll group 3 have a step in the height direction and are separated from each other. “Separated” means that the lower peripheral surface of the roll 20 is located above the lower peripheral surface of the roll 20 and the upper peripheral surface of the roll 30, and the lower peripheral surface of the roll 20 and the upper peripheral surface of the roll 30 Are different in position (height position), for example, have a distance in the Z-axis direction as shown in FIG.
From the same viewpoint, the distance D (see FIG. 4) of the roll group is preferably 0.25 to 20 times the web width, more preferably 0.5 to 15 times, particularly 1 It is particularly preferably from 0 to 10 times.
ウェブ10のスムーズな方向転換の観点から、上位ロール群2と下位ロール群3とは高さ方向に段差を有し、また、離間しているのが一層好ましい。離間しているとは、ロール20の下周面とロール30の上周面とでロール20の下周面の方が上方に有り、且つロール20の下周面とロール30の上周面との位置(高さ位置)が異なること、例えば、図2のようにZ軸方向に距離を有していることである。
また、同様の観点から、ロール群の距離D(図4参照)は、ウェブ幅の0.25~20倍であることが好ましく、0.5倍~15倍であることが更に好ましく、特に1.0~10倍であることが特に好ましい。 A plurality of
From the viewpoint of smooth direction change of the
From the same viewpoint, the distance D (see FIG. 4) of the roll group is preferably 0.25 to 20 times the web width, more preferably 0.5 to 15 times, particularly 1 It is particularly preferably from 0 to 10 times.
第1実施形態の装置1では、上位ロール群2の各ロール20と下位ロール群3の各ロール30とは、この2つのロール群2,3を上方から重ねて平面視したとき、同じ位置に存在しない。また、各ロール20は側面視で同じ高さ(Z軸方向の位置)にあり、各ロール30も側面視で同じ高さにある。
In the apparatus 1 of the first embodiment, each roll 20 of the upper roll group 2 and each roll 30 of the lower roll group 3 are in the same position when the two roll groups 2 and 3 are overlapped from above and viewed in plan. not exist. Each roll 20 is at the same height (position in the Z-axis direction) in a side view, and each roll 30 is also at the same height in a side view.
ロール20およびロール30は回転自在ロールであり、好ましくは、回転駆動源を持たないフリーロールである。各ロール20、30は軸芯に対して、ベアリングで連結されて、回転自在とされている。ロール20、30の回転モーメントは小さいほうがよく、そのため、アルミニウム合金、樹脂またはカーボングラファイト等の軽量な素材で形成されていることが好ましい。
Roll 20 and roll 30 are rotatable rolls, preferably free rolls that do not have a rotational drive source. Each of the rolls 20 and 30 is connected to the shaft core by a bearing so as to be rotatable. The rolls 20 and 30 preferably have a small rotational moment, and therefore are preferably formed of a lightweight material such as an aluminum alloy, resin, or carbon graphite.
ロール20,30軸芯(図示なし)は、その一端がXY平面と平行に設けられた2枚の扇状のプレート(図示なし)にそれぞれ固定され、2枚のプレートはZ軸方向に平行な1本の固定用バー(図示なし)に固定されている。固定用バーは図示されない治具等により、ウェブ10の搬送工程(搬送路)に固定され、装置1が吸収性物品製造の工程に組み込まれている。2枚のプレートは、固定用バーに沿って移動可能であり、上位ロール群2と下位ロール群3のZ軸方向の高さを調整可能とする。
The roll cores 20 and 30 (not shown) are fixed to two fan-like plates (not shown) each having one end parallel to the XY plane, and the two plates are parallel to the Z-axis direction. It is fixed to a book fixing bar (not shown). The fixing bar is fixed to the conveyance process (conveyance path) of the web 10 by a jig or the like (not shown), and the device 1 is incorporated into the absorbent article manufacturing process. The two plates can move along the fixing bar, and the height of the upper roll group 2 and the lower roll group 3 in the Z-axis direction can be adjusted.
また、ロール20はプレートに放射状に固定されるが、複数本のロール20は固定用バーを中心にして、XY平面上の角度を調整可能に固定されており、ロール30も同様に別のプレートに固定されている。なお、各ロール20,30は、高さや角度等の位置を調整した後は、ウェブ搬送中にその位置がずれないようになっている。装置1では、複数本のロール20は互いに等角度を置いて放射状に配置されており、複数本のロール30も互いに等角度を置いて放射状に配置されている。放射線状に配置されることによって、ロール20とロール30は、それぞれ扇状平面を構成する。上位ロール群2および下位ロール群3は、各ロール20,30のロール軸の延長線が各々固定用バーと交わり、つまり、ロール軸と直交する1つの線L1(図2参照)において交わる関係にあり、且つロール軸の延長線が1つの点(ロール20については点P1,ロール30については点P2,図2参照)において交わる関係にあり、ロール間の角度調整を容易にすることができる。したがって、上位ロール群2を構成する各ロールの軸芯の延長線の交点P1と、下位ロール群3を構成する各ロールの軸芯の延長線の交点P2とを結ぶ直線L1が、前記の第1のXY平面2A及び第2のXY平面3Aと直交している。装置1をこのように構成することで、装置1をコンパクト化できるという利点がある。
また、2つのロール群2,3を上方から重ねて平面視したときの、上下のロール間の角度も等角度になるのが好ましく、2枚の扇状プレートの固定用バー周方向に対しての設置角度が容易に決められるように、キーなどの位置決めを入れても良い。 Theroll 20 is fixed radially to the plate, but the plurality of rolls 20 are fixed so that the angle on the XY plane can be adjusted around the fixing bar, and the roll 30 is also another plate. It is fixed to. In addition, after adjusting positions, such as height and an angle, each roll 20,30 does not shift | deviate the position during web conveyance. In the apparatus 1, the plurality of rolls 20 are arranged radially at the same angle, and the plurality of rolls 30 are also arranged radially at the same angle. By arrange | positioning radially, the roll 20 and the roll 30 each comprise a fan-shaped plane. In the upper roll group 2 and the lower roll group 3, the extension lines of the roll axes of the rolls 20 and 30 intersect with the fixing bars, that is, in a relationship intersecting at one line L1 (see FIG. 2) orthogonal to the roll axis. And the extension line of the roll axis intersects at one point (point P1 for the roll 20 and point P2 for the roll 30 and see FIG. 2), and angle adjustment between the rolls can be facilitated. Accordingly, the straight line L1 connecting the intersection point P1 of the extension line of the axis of each roll constituting the upper roll group 2 and the intersection point P2 of the extension line of the axis of each roll constituting the lower roll group 3 is It is orthogonal to the first XY plane 2A and the second XY plane 3A. By configuring the device 1 in this way, there is an advantage that the device 1 can be made compact.
Also, when the two roll groups 2 and 3 are overlapped from above and viewed in plan, the angle between the upper and lower rolls is preferably equal, and the two fan-shaped plates are fixed with respect to the circumferential direction of the fixing bar. A key or the like may be positioned so that the installation angle can be easily determined.
また、2つのロール群2,3を上方から重ねて平面視したときの、上下のロール間の角度も等角度になるのが好ましく、2枚の扇状プレートの固定用バー周方向に対しての設置角度が容易に決められるように、キーなどの位置決めを入れても良い。 The
Also, when the two
装置1のロール群は、装置1へのウェブの供給位置にある最初ロールと次工程への排出位置にある最終ロールである平面視において最外側の2本のロール20A,30Aで、ウェブの走行方向の変更角度が決定される。平面視において最外側の2本のロール20A,30Aの角度θ(図3参照)は、所望の変更角度によるため特に制限はないが、装置1の大きさや効率等を考慮すると、45~135度が好ましく、特に80~100度が好ましい。
The roll group of the apparatus 1 includes two rolls 20A and 30A, which are the outermost rolls in a plan view, which are a first roll at a web supply position to the apparatus 1 and a final roll at a discharge position to the next process. The direction change angle is determined. The angle θ (see FIG. 3) of the two outermost rolls 20A and 30A in plan view is not particularly limited because it depends on a desired change angle, but considering the size, efficiency, etc. of the apparatus 1, it is 45 to 135 degrees. Is preferable, and 80 to 100 degrees is particularly preferable.
図3に示すように、ウェブ10の搬送方向において互いに隣り合う一のロール20と次のロール30とが、両者の回転軸が角度をなすように設けられていると、ウェブ10の幅方向の一端側と他端側とで、一のロール20から次のロール30までの搬送距離が異なることになる。そのため、ウェブ10には、ひずみが生じるが、図5(a)に示すように、装置1やロール群を上方から平面視したときに上位ロール群2を構成する一のロール20と、一の該ロール20の次にウェブが掛け渡される下位ロール群3を構成する一のロール30とが、一部において重なるように配置することで、ウェブ10の幅方向の一端側と他端側とで、一のロール20から次のロール30までの搬送距離〔a1-b1間の距離及びa2-b2間の距離,図5(b)参照〕の差を小さくすることができる。これにより、ウェブ10に対する、ひずみのかかり方が、左右均等に近づくことになり、ウェブに生じるひずみを小さくすることができる。ひずみを小さく抑えると、皺の発生を防止することができる。特に、図5(a)のように、ロールの軸長方向の中央部でロール周面同士が重なるようにすると、ひずみをもっとも小さくすることが出来る。同様の観点から、図5中の直線L2~L4は、鉛直方向(図2中のZ軸方向)に延びている。一のロール20と次のロール30の回転軸のなす角度θ1〔(図5(a)参照)は、0°より大きく30°以下であることが好ましく、特に5°~15°であることが好ましい。これに対して、先に述べた特許文献4に記載の技術では、ウェブをパスローラ間に掛け渡す回数が少ないため、大きな方向転換をする場合には、隣り合うパスローラの角度を大きくする必要がある。このことは、ウェブの幅方向の左右で発生するテンションの差が大きくなる原因となる。同文献ではウェブとして金属板を用いているので、ウェブの幅方向のテンションの差は問題にならないことが多いかもしれないが、ウェブとして不織布や紙などの柔軟な素材を用いた場合には、ウェブに皺が発生したり、ウェブにダメージが加わることがある。
As shown in FIG. 3, when one roll 20 and the next roll 30 that are adjacent to each other in the conveyance direction of the web 10 are provided so that their rotation axes form an angle, The conveyance distance from one roll 20 to the next roll 30 is different between the one end side and the other end side. Therefore, although distortion arises in the web 10, as shown to Fig.5 (a), when the apparatus 1 and a roll group are planarly viewed from the top, one roll 20 which comprises the upper roll group 2, and one The one roll 30 constituting the lower roll group 3 on which the web is stretched next to the roll 20 is arranged so as to partially overlap, so that one end side and the other end side in the width direction of the web 10 The difference in the transport distance from one roll 20 to the next roll 30 [distance between a1 and b1 and distance between a2 and b2, see FIG. 5B] can be reduced. As a result, the strain applied to the web 10 approaches the left and right evenly, and the strain generated in the web can be reduced. If the strain is kept small, generation of wrinkles can be prevented. In particular, as shown in FIG. 5A, when the roll peripheral surfaces overlap each other at the center in the axial direction of the roll, the strain can be minimized. From the same viewpoint, the straight lines L2 to L4 in FIG. 5 extend in the vertical direction (Z-axis direction in FIG. 2). The angle θ1 [(see FIG. 5 (a)) formed by the rotation axis of one roll 20 and the next roll 30 is preferably larger than 0 ° and not larger than 30 °, and particularly preferably 5 ° to 15 °. preferable. On the other hand, in the technique described in Patent Document 4 described above, since the number of times the web is passed between the pass rollers is small, it is necessary to increase the angle of the adjacent pass rollers when making a large change in direction. . This causes the difference in tension generated between the right and left sides of the web in the width direction to increase. In this document, since a metal plate is used as the web, the difference in tension in the width direction of the web may not be a problem, but when a flexible material such as nonwoven fabric or paper is used as the web, The web may wrinkle or damage the web.
図5(b)のように、2本のロール間でウェブは捻られているため、2本のロール間においてウェブの長さは、ロールの中央部と側部とで異なる。そのため、ひずみ易いウェブの場合には皺が発生する場合がある。その場合には、皺発生を防止のため、ロール断面においてウェブの巻き掛け面が紡錘状(タイコ状)のロールを使って、この長さの差を小さくしてもよい。
As shown in FIG. 5B, since the web is twisted between the two rolls, the length of the web between the two rolls differs between the central portion and the side portion of the roll. Therefore, wrinkles may occur in the case of a web that is easily distorted. In that case, in order to prevent wrinkling, a roll having a spindle-shaped (taiko-shaped) web winding surface in the roll cross section may be used to reduce the difference in length.
次に、本発明の第2実施形態に係るウェブ走行方向変更装置1’を図6及び図7を参照して説明する。上述した第1実施形態のウェブ走行方向変更装置1と異なる構成部分を主として説明し、同様の構成部分は同一の符号を付して説明を省略する。特に説明しない構成部分は、第1実施形態のウェブ走行方向変更装置1についての説明が適宜適用される。図6は、ウェブ走行方向変更装置1’を斜め上方から視た斜視図、図7は図4の対応図である。
Next, a web traveling direction changing device 1 ′ according to a second embodiment of the present invention will be described with reference to FIGS. 6 and 7. Components different from those of the web travel direction changing device 1 of the first embodiment described above will be mainly described, and similar components will be denoted by the same reference numerals and description thereof will be omitted. For the components that are not particularly described, the description of the web travel direction changing device 1 of the first embodiment is appropriately applied. 6 is a perspective view of the web traveling direction changing device 1 ′ viewed obliquely from above, and FIG. 7 is a corresponding view of FIG. 4.
装置1’は、図6に示すように、固定用バー4に、各ロール20,30が固定されている。上位ロール群2を構成する各ロール20は、固定用バー4に高さ方向に等間隔で取り付けられており、下位ロール群3を構成するロール30は、上位ロール群2の下方に、固定用バー4に高さ方向に等間隔で取り付けられている。つまり、各ロール20および各ロール30はZ軸方向(鉛直方向)に沿う位置(高さ)が異なっている。各ロール20,30は、ロール軸(回転軸)が固定用バー4に垂直に配置されており、固定用バー4に対して、高さの調整が可能となっている。
In the apparatus 1 ′, as shown in FIG. 6, the rolls 20 and 30 are fixed to the fixing bar 4. Each roll 20 constituting the upper roll group 2 is attached to the fixing bar 4 at equal intervals in the height direction, and the roll 30 constituting the lower roll group 3 is fixed below the upper roll group 2. The bars 4 are attached at equal intervals in the height direction. That is, each roll 20 and each roll 30 have different positions (heights) along the Z-axis direction (vertical direction). Each of the rolls 20 and 30 has a roll axis (rotating axis) arranged perpendicular to the fixing bar 4, and the height of the rolls 20 and 30 can be adjusted with respect to the fixing bar 4.
また、各ロール20,30は、固定用バー4に直交する面に対して回転移動できるように取り付けられており、固定用バー4を中心に放射状に広げて配置することができる。本装置1’においては、ロール20A及びロール20Bが、平面視において最外側の2本ロールである。
Further, each of the rolls 20 and 30 is attached so as to be able to rotate and move with respect to a surface orthogonal to the fixing bar 4 and can be arranged radially extending around the fixing bar 4. In the apparatus 1 ′, the roll 20 </ b> A and the roll 20 </ b> B are the outermost two rolls in plan view.
この装置1’によれば、ロール20、30の高さが、図7に示すように、ウェブ10の走行方向に徐々に低くなっており、高い位置にウェブの原反ロールが配置され、装置1’による走行方向変更後の工程が低い位置にある場合に、装置のスペース確保が容易となる。
According to this apparatus 1 ′, the heights of the rolls 20 and 30 are gradually lowered in the running direction of the web 10 as shown in FIG. 7, and the web roll is disposed at a high position. When the process after changing the traveling direction by 1 ′ is at a low position, it is easy to secure the space of the apparatus.
次に、本発明のウェブの走行方向変更方法について、好ましい実施形態を、上述した第1実施形態の装置1を例にとり、説明する。
図1に示すように、搬送状態のウェブ10は、複数の回転自在ロールからなるロール群に対し、蛇腹状に掛け渡して走行させることで、ロール群への供給位置Aと排出位置Bとでウェブの走行方向が変更されている。ウェブ10は、原反100より繰り出され、搬送されてきたウェブ10は、装置1によって走行方向が約90度変更され、次工程に搬送されている。 Next, a preferred embodiment of the web traveling direction changing method of the present invention will be described by taking the above-describedapparatus 1 of the first embodiment as an example.
As shown in FIG. 1, theweb 10 in a transported state travels in a bellows-like manner over a roll group composed of a plurality of rotatable rolls, so that the supply position A and the discharge position B to the roll group are The direction of web travel has been changed. The web 10 is unwound from the original fabric 100, and the web 10 that has been transported is changed in traveling direction by about 90 degrees by the apparatus 1, and is transported to the next process.
図1に示すように、搬送状態のウェブ10は、複数の回転自在ロールからなるロール群に対し、蛇腹状に掛け渡して走行させることで、ロール群への供給位置Aと排出位置Bとでウェブの走行方向が変更されている。ウェブ10は、原反100より繰り出され、搬送されてきたウェブ10は、装置1によって走行方向が約90度変更され、次工程に搬送されている。 Next, a preferred embodiment of the web traveling direction changing method of the present invention will be described by taking the above-described
As shown in FIG. 1, the
ウェブ10は、図2に示すように、装置1に供給され、最初のロール20の軸方向に対してウェブの走行方向が略直交するようにロール20の上面に供給される。次に、ウェブ10は、装置1の下方に進められ、下位ロール群30のロール30に掛け渡される。ロール30ではその下周面にウェブが巻き掛けられている。そして、ウェブ10は、次に上位ロール群2のロール20の上周面に巻き掛けられていき、ウェブの走行方向に沿ってロール群の中で蛇腹状にロールに掛け渡されて行く。なお、装置1の各ロールには回転駆動源は有していないので、原反の繰り出しおよび図示されていない他のフィードロール等の駆動によって、ウェブ10は走行および搬送される。
The web 10 is supplied to the apparatus 1 as shown in FIG. 2 and supplied to the upper surface of the roll 20 so that the traveling direction of the web is substantially perpendicular to the axial direction of the first roll 20. Next, the web 10 is advanced below the apparatus 1 and is passed over the roll 30 of the lower roll group 30. In the roll 30, a web is wound around the lower peripheral surface. Then, the web 10 is wound around the upper peripheral surface of the roll 20 of the upper roll group 2, and is wound around the roll in a bellows shape in the roll group along the traveling direction of the web. In addition, since each roll of the apparatus 1 does not have a rotation drive source, the web 10 travels and is transported by feeding the original fabric and driving other feed rolls (not shown).
ウェブ10は、ウェブ10の走行方向に隣り合うロール20とロール30、又はロール30とロール20との間で捻られている。捻られることによって、ロール20(又はロール30)に掛け渡されたウェブ10は、走行方向に次に掛け渡されるロール30(又はロール20)の軸方向に対して、ウェブ10の走行方向が略直交するように掛け渡すことができる。ウェブ10の捻られる度合いは、隣接するロール20とロール30の角度によって変更される。ウェブ10の走行安定性の観点から、隣接するロール20とロール30の好ましい角度(前述の角度θ1)は30度以下であり、更に好ましくは15度以下である。なお、略直交とは、正確に軸方向に対して90度である必要はなく、80~100度での交差を許容する。
The web 10 is twisted between the roll 20 and the roll 30 adjacent to each other in the traveling direction of the web 10 or between the roll 30 and the roll 20. By being twisted, the web 10 stretched over the roll 20 (or the roll 30) has a traveling direction of the web 10 approximately the axial direction of the roll 30 (or the roll 20) that is spanned next in the traveling direction. It can be crossed so as to be orthogonal. The degree to which the web 10 is twisted is changed by the angle between the adjacent roll 20 and roll 30. From the viewpoint of the running stability of the web 10, the preferred angle between the adjacent roll 20 and roll 30 (the aforementioned angle θ1) is 30 degrees or less, more preferably 15 degrees or less. Note that the term “substantially orthogonal” does not need to be exactly 90 degrees with respect to the axial direction, but allows an intersection at 80 to 100 degrees.
ウェブ10は、装置1の放射状に徐々に角度が変更されている上位ロール群2のロール20と下位ロール群3のロール30からなるロール群を走行していくに従い、徐々に走行方向が変化していき、排出位置のロールを越えたときには、装置1への供給位置と排出位置では走行方向が大きく変更されている。また、ウェブ10は、ロール群への供給位置と排出位置とで、ウェブの上下面が入れ代わらないため、表面と裏面とで違いを有するウェブの場合に、ウェブ原反の繰り出し後は表裏を気にすることなくウェブ搬送を行うことができるという利点も有する。
The traveling direction of the web 10 gradually changes as the web 10 travels on a roll group including the roll 20 of the upper roll group 2 and the roll 30 of the lower roll group 3 whose angles are gradually changed radially. Then, when the roll at the discharge position is exceeded, the traveling direction is greatly changed at the supply position to the apparatus 1 and the discharge position. In addition, since the web 10 has a difference between the front surface and the back surface, the front and back surfaces of the web 10 after feeding the web are not changed because the top and bottom surfaces of the web 10 are not interchanged between the supply position to the roll group and the discharge position. There is also an advantage that web conveyance can be performed without concern.
ウェブ10は、特に制限はないが、吸収性物品の製造工程に、本発明を用いる場合には、吸収性物品用の構成材料であり、紙、不織布、プラスチックシート等が挙げられる。また、ウェブ10は単一層に限られず、複数のシートを積層したり、幅方向に接合した複合材料を用いてもよい。特にウェブ10として不織布や紙等の柔軟材料を用いた場合に、本発明の効果が顕著なものとなる。とりわけウェブ10として不織布を用いた場合に、本発明の効果が一層顕著なものとなる。この理由は次のとおりである。不織布には一般に親水化剤を始めとする各種の油剤が付与されている。このような不織布を走行させてその方向を変換するとき、該不織布とロールとの摩擦が大きいと、前記の油剤がロールに付着・堆積して異物化したりウェブの安定走行の妨げとなることがしばしばある。これに対して本発明に従い不織布の走行方向を変換させると、不織布とロールとの摩擦が低減されるので、前記の問題が発生しにくくなる。
The web 10 is not particularly limited, but when the present invention is used in the manufacturing process of the absorbent article, it is a constituent material for the absorbent article, and examples thereof include paper, nonwoven fabric, and plastic sheet. The web 10 is not limited to a single layer, and a composite material obtained by laminating a plurality of sheets or joining in the width direction may be used. In particular, when a flexible material such as a nonwoven fabric or paper is used as the web 10, the effect of the present invention becomes remarkable. In particular, when a nonwoven fabric is used as the web 10, the effect of the present invention becomes more remarkable. The reason for this is as follows. Various oil agents including a hydrophilizing agent are generally applied to the nonwoven fabric. When such a nonwoven fabric is run and its direction is changed, if the friction between the nonwoven fabric and the roll is large, the oil agent adheres to and accumulates on the roll and may cause foreign matter or hinder the stable running of the web. Often there is. On the other hand, if the running direction of the nonwoven fabric is changed according to the present invention, the friction between the nonwoven fabric and the roll is reduced, so that the above-described problem is less likely to occur.
本発明の走行方向変更装置1若しくは1’、又はウェブの走行方向変更方法の好ましい実施形態によれば、従来のターンバーと比較し、走行方向変更装置に対するウェブ10の摩擦抵抗が小さいため、ウェブ10へのダメージが少なく、またウェブ10から発生する紙粉やウェブ添加物(油剤等)等が装置周辺やウェブ10に付着して汚染することを防止することができる。また、摩擦抵抗が小さいため、静電気の発生を抑えることができ、搬送されるウェブ10への汚染の防止や安定した搬送ができる。
According to the preferred embodiment of the traveling direction changing device 1 or 1 ′ or the web traveling direction changing method of the present invention, the web 10 has a lower frictional resistance against the traveling direction changing device than the conventional turn bar. In addition, it is possible to prevent paper dust generated from the web 10 and web additives (oil agent, etc.) from adhering to the periphery of the apparatus or the web 10 and being contaminated. In addition, since the frictional resistance is small, the generation of static electricity can be suppressed, contamination of the web 10 being conveyed can be prevented, and stable conveyance can be achieved.
また、ウェブ10は、ロール20,30の軸方向に対して略直交するように、掛け渡されて走行できるため、ロール20,30に対して、摩擦抵抗を低く抑えることができ、また、蛇行を防止することができる。
Further, since the web 10 can run while being stretched so as to be substantially orthogonal to the axial direction of the rolls 20 and 30, the web 10 can have a low frictional resistance with respect to the rolls 20 and 30, and can meander. Can be prevented.
また、第1実施形態のウェブの走行方向変更装置1においては、ロール群が、上位ロール群2のロール20と下位ロール群3のロール30に分かれているため、高さ調整が容易であり、ウェブの特性や設置スペースの制約に応じて高さを変えることが容易である。
Moreover, in the web traveling direction changing device 1 of the first embodiment, the roll group is divided into the roll 20 of the upper roll group 2 and the roll 30 of the lower roll group 3, so that the height adjustment is easy. It is easy to change the height according to web characteristics and installation space constraints.
以上、本発明をその好ましい実施形態に基づき説明したが、本発明は前記実施形態に制限されない。
例えば、各ロールは、水平に限らず、ロール群が、図8に示すように、Y-Z面に配置されて、ウェブ10を横方向から上方向へ方向転換しても良い。図8中、Z方向は鉛直方向と平行である。図8に示す実施形態においては、図2中の線L1に相当する線L1’が、水平に配されており、水平に搬送されてきたウェブが、上位ロール群2および下位ロール群3からなる複数のロールによって搬送方向を変えられた後、鉛直方向の上方に向かって導出されている。 As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment.
For example, each roll is not limited to being horizontal, and a group of rolls may be arranged on the YZ plane as shown in FIG. 8 to turn theweb 10 from the lateral direction to the upward direction. In FIG. 8, the Z direction is parallel to the vertical direction. In the embodiment shown in FIG. 8, a line L1 ′ corresponding to the line L1 in FIG. 2 is arranged horizontally, and the web conveyed horizontally is composed of the upper roll group 2 and the lower roll group 3. After the conveyance direction is changed by a plurality of rolls, the sheet is led upward in the vertical direction.
例えば、各ロールは、水平に限らず、ロール群が、図8に示すように、Y-Z面に配置されて、ウェブ10を横方向から上方向へ方向転換しても良い。図8中、Z方向は鉛直方向と平行である。図8に示す実施形態においては、図2中の線L1に相当する線L1’が、水平に配されており、水平に搬送されてきたウェブが、上位ロール群2および下位ロール群3からなる複数のロールによって搬送方向を変えられた後、鉛直方向の上方に向かって導出されている。 As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment.
For example, each roll is not limited to being horizontal, and a group of rolls may be arranged on the YZ plane as shown in FIG. 8 to turn the
図2及び図8の走行方向変更装置は、前記の直線L1、L1’を3次元空間中の任意の方向に向けた状態で用いることができる。
ロール群は、固定式でもよく、また、どちらか一方を上下方向への可動式としてもよい。この場合は、ウェブ蓄積のためのアキュームレータや、ウェブの搬送テンション制御のためのダンサーロールとしての機能を発揮する。
また、上位ロール群2又は下位ロール群3のロールには、エアー孔を空けて、ウェブ10を浮かして走行させてもよい。
また、上位ロール群2は、2本のロール又は4本以上のロールから構成しても良く、下位ロール群3も、2本のロール又は4本以上のロールから構成しても良い。走行方向変更装置を構成する回転自在ロールの総数は、4本以上が好ましく、5本以上、特に6本以上であることがより好ましい。上限は特に制限されないが、例えば20本である。 2 and 8 can be used in a state in which the straight lines L1 and L1 ′ are directed in an arbitrary direction in the three-dimensional space.
The roll group may be fixed, or one of them may be movable in the vertical direction. In this case, it functions as an accumulator for web accumulation and a dancer roll for web transport tension control.
Further, the rolls of theupper roll group 2 or the lower roll group 3 may be made to run with air holes and the web 10 floating.
Theupper roll group 2 may be composed of two rolls or four or more rolls, and the lower roll group 3 may be composed of two rolls or four or more rolls. The total number of rotatable rolls constituting the traveling direction changing device is preferably 4 or more, more preferably 5 or more, and particularly preferably 6 or more. The upper limit is not particularly limited, but is 20 for example.
ロール群は、固定式でもよく、また、どちらか一方を上下方向への可動式としてもよい。この場合は、ウェブ蓄積のためのアキュームレータや、ウェブの搬送テンション制御のためのダンサーロールとしての機能を発揮する。
また、上位ロール群2又は下位ロール群3のロールには、エアー孔を空けて、ウェブ10を浮かして走行させてもよい。
また、上位ロール群2は、2本のロール又は4本以上のロールから構成しても良く、下位ロール群3も、2本のロール又は4本以上のロールから構成しても良い。走行方向変更装置を構成する回転自在ロールの総数は、4本以上が好ましく、5本以上、特に6本以上であることがより好ましい。上限は特に制限されないが、例えば20本である。 2 and 8 can be used in a state in which the straight lines L1 and L1 ′ are directed in an arbitrary direction in the three-dimensional space.
The roll group may be fixed, or one of them may be movable in the vertical direction. In this case, it functions as an accumulator for web accumulation and a dancer roll for web transport tension control.
Further, the rolls of the
The
好ましい実施形態では、ロール20とロール30はそれぞれ1本のロール毎にウェブを上下方向に蛇腹状に掛け渡したが、ロール20とロール30とを複数本おきに掛け渡してもよい。また、連続する複数のロール20またはロール30、例えば2本のロール20に連続してウェブを掛けてもよい。連続する複数ロールに掛ける場合、そのロールどうしは平行に近くなるよう角度や間隔を調節することが好ましい。尤も、ロール20とロール30はそれぞれ1本のロール毎にウェブを上下方向に蛇腹状に掛け渡すことが、ウェブにかかるひずみが均一化され、しわが発生しにくくなる点から好ましい。
In a preferred embodiment, the roll 20 and the roll 30 each have a web laid in a bellows shape in the vertical direction for each roll, but the roll 20 and the roll 30 may be wound every other roll. Further, the web may be continuously hung on a plurality of continuous rolls 20 or 30, for example, two rolls 20. When it hangs on a plurality of continuous rolls, it is preferable to adjust the angle and interval so that the rolls are close to parallel. However, it is preferable that the roll 20 and the roll 30 are each laid in a bellows shape in the vertical direction for each roll from the viewpoint that the strain applied to the web is made uniform and wrinkles are less likely to occur.
また、装置1では、ウェブ10を、上位ロール群2のロール20に供給し、下位ロール群3のロール30から排出を行ったが、装置のレイアウトによって、例えば下位ロール群3のロール30に供給したり、上位ロール群2のロール20から排出してもよい。装置1へのウェブの供給位置および装置からのウェブの排出位置は、自由に設計することができる。
In the apparatus 1, the web 10 is supplied to the roll 20 of the upper roll group 2 and discharged from the roll 30 of the lower roll group 3. However, depending on the layout of the apparatus, the web 10 is supplied to the roll 30 of the lower roll group 3, for example. Or may be discharged from the roll 20 of the upper roll group 2. The supply position of the web to the apparatus 1 and the discharge position of the web from the apparatus can be freely designed.
また、ウェブの走行方向変更装置は、吸収性物品を構成するウェブの用途以外に、外科用衣類や清掃シート等の各種の用途に用いることもできる。また、これらの物品を製造する工程だけでなく、印刷や乾燥等の工程にも用いることができる。
Also, the web running direction changing device can be used for various uses such as surgical clothes and cleaning sheets in addition to the use of the web constituting the absorbent article. Moreover, it can be used not only in the process of manufacturing these articles but also in processes such as printing and drying.
Claims (16)
- 複数の回転自在ロールが放射状に配置されているロール群に対し、ウェブを蛇腹状に掛け渡して走行させることで、ロール群への供給位置と排出位置とでウェブの走行方向を異ならせるウェブの走行方向変更方法。 A web of webs in which the web travel direction varies depending on the supply position to the roll group and the discharge position by running the web in a bellows shape over a roll group in which a plurality of rotatable rolls are arranged radially. Travel direction change method.
- 前記ウェブは、前記ロール群への供給位置と排出位置とで、ウェブの上下面が入れ代わらない請求項1記載のウェブの走行方向変更方法。 2. The web traveling direction changing method according to claim 1, wherein the web has a top and bottom surfaces that are not interchanged between a supply position to the roll group and a discharge position.
- 前記ウェブは、各ロールの軸方向に対してウェブの走行方向が略直交するようにロール群に掛け渡されている請求項1又は2に記載のウェブの走行方向変更方法。 The web traveling direction changing method according to claim 1 or 2, wherein the web is stretched over a group of rolls so that the traveling direction of the web is substantially orthogonal to the axial direction of each roll.
- 前記ウェブは、ウェブの走行方向に隣り合うロール間において捻られている請求項1~3の何れかに記載のウェブの走行方向変更方法。 The web traveling direction changing method according to any one of claims 1 to 3, wherein the web is twisted between rolls adjacent to each other in the web traveling direction.
- 前記ウェブは、その2つの面のうち、ロールと当接する面を、上面と下面とで順次入れ替えながら進行するように前記ロール群に掛け渡されている請求項1~4の何れかに記載のウェブの走行方向変更方法。 The web according to any one of claims 1 to 4, wherein the web is stretched over the roll group so as to advance while sequentially switching the surface abutting on the roll of the two surfaces between the upper surface and the lower surface. How to change the direction of web travel.
- 前記ウェブが、不織布又は紙からなる請求項1~5の何れかに記載のウェブの走行方向変更方法。 The method for changing the running direction of the web according to any one of claims 1 to 5, wherein the web is made of nonwoven fabric or paper.
- 複数の回転自在ロールが放射状に配置されているロール群を有し、該ロール群にウェブを蛇腹状に掛け渡して使用されるウェブの走行方向変更装置。 A web traveling direction change device that has a roll group in which a plurality of rotatable rolls are arranged radially, and is used by wrapping the web around the roll group in a bellows shape.
- 前記ロール群はロール間に段差を設けて配置されている請求項7記載のウェブの走行方向変更装置。 8. The web travel direction changing device according to claim 7, wherein the roll group is arranged with a step between the rolls.
- 放射状に配置された前記ロール群の一方の端部に位置するロールから他方の端部に位置するロールに向かって、ウェブを通す位置をロールの上側と下側とに入れ替えながらウェブを蛇腹状に掛け渡したときに、ウェブの走行方向に隣接する、ウェブが上周面に巻き掛けられた前記ロールとウェブが下周面に巻き掛けられた前記ロールとは、段差が設けられている、請求項8記載のウェブの走行方向変更装置。 From the roll located at one end of the group of rolls arranged radially to the roll located at the other end, the web is accordion-shaped while changing the position of passing the web between the upper side and the lower side of the roll. A step is provided between the roll around which the web is wound on the upper peripheral surface and the roll around which the web is wound on the lower peripheral surface, which are adjacent to each other in the running direction of the web when they are passed over. Item 9. The web traveling direction changing device according to Item 8.
- 前記ロール群は、放射状に配置された前記ロール群の最外側の2本のロールの角度が45~135度である請求項8又は9記載のウェブの走行方向変更装置。 10. The web travel direction changing device according to claim 8, wherein the roll group has an angle of 45 to 135 degrees at the outermost two rolls of the roll group arranged radially.
- 前記ロール群は、ロール群の中で上方位置にありロールの上周面にウェブの下面が接触する上位ロール群と、ロール群の中で下方位置にありロールの下周面にウェブの上面が接触する下位ロール群とに分けられ、上位ロール群と下位ロール群とは高さ方向に離間している請求項8~10の何れか記載のウェブの走行方向変更装置。 The roll group is in an upper position in the roll group and the upper roll group in which the lower surface of the web is in contact with the upper peripheral surface of the roll; and the upper surface of the web is in the lower position in the roll group and in the lower peripheral surface of the roll. 11. The web traveling direction changing device according to claim 8, wherein the web traveling direction changing device is divided into a lower roll group that comes into contact with the upper roll group and the lower roll group that are separated in the height direction.
- 前記ロール群の各ロールは回転駆動源を持たないフリーロールである請求項7~11の何れかに記載のウェブの走行方向変更装置。 12. The web travel direction changing device according to claim 7, wherein each roll of the roll group is a free roll having no rotation drive source.
- 上位ロール群を構成する各ロールは、それらの軸芯が同一の面2Aの上に位置するように配置されているとともに、下位ロール群を構成する各ロールも、それらの軸芯が同一の面3Aの上に位置するように配置されており、
上位ロール群を構成する各ロールの軸芯が位置する面2Aと、下位ロール群を構成する各ロールの軸芯が位置する面3Aとが平行になるように、各ロールが配置されている請求項11記載のウェブの走行方向変更装置。 The rolls constituting the upper roll group are arranged so that their axial centers are located on the same surface 2A, and the rolls constituting the lower roll group also have the same axis. It is arranged to be located on 3A,
Each roll is arranged so that the surface 2A on which the axis of each roll constituting the upper roll group is located and the surface 3A on which the axis of each roll constituting the lower roll group is located are parallel. Item 12. The web travel direction changing device according to Item 11. - 上位ロール群を構成する各ロールの軸芯の延長線の交点P1と、下位ロール群を構成する各ロールの軸芯の延長線の交点P2とを結ぶ直線L1,L1’が、前記の面2A,3Aと直交するように各ロールが配置されている請求項13記載のウェブの走行方向変更装置。 Straight lines L1 and L1 ′ connecting the intersection point P1 of the extension line of the axis of each roll constituting the upper roll group and the intersection point P2 of the extension line of the axis of each roll constituting the lower roll group are the plane 2A. , 3A. The web travel direction changing device according to claim 13, wherein each roll is arranged so as to be orthogonal to 3A.
- 上位ロール群及び下位ロール群を上方から重ねて平面視したとき、上位ロール群を構成するロールと下位ロール群を構成するロールとの間の角度が等角度になっている請求項13記載のウェブの走行方向変更装置。 14. The web according to claim 13, wherein when the upper roll group and the lower roll group are overlapped from above and viewed in plan, the angle between the roll constituting the upper roll group and the roll constituting the lower roll group is equal. Traveling direction change device.
- 上位ロール群及び下位ロール群を上方から重ねて平面視したとき、上位ロール群を構成するロール及び下位ロール群を構成するロールは、上位ロール群を構成する一のロールと、一の該ロールの次にウェブが掛け渡される下位ロール群を構成する一のロールとがそれらの一部において重なるように配置されている請求項13記載のウェブの走行方向変更装置。 When the upper roll group and the lower roll group are overlapped from above and viewed in plan, the roll constituting the upper roll group and the roll constituting the lower roll group include one roll constituting the upper roll group and one of the rolls. 14. The web travel direction changing apparatus according to claim 13, wherein the web roll direction changing device is arranged so that a part of one roll constituting a lower roll group on which the web is next overlapped overlaps with each other.
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CN201090000941.0U CN202829084U (en) | 2009-06-18 | 2010-06-16 | Device for changing traveling direction of sheet material |
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PCT/JP2010/060222 WO2010147154A1 (en) | 2009-06-18 | 2010-06-16 | Web traveling direction changing method and web traveling direction changing device |
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JP (1) | JP5592170B2 (en) |
CN (1) | CN202829084U (en) |
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CN112195637A (en) * | 2020-11-06 | 2021-01-08 | 刘金红 | Plush fabric forming production system |
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JP5973155B2 (en) * | 2011-12-05 | 2016-08-23 | 花王株式会社 | Manufacturing method of composite material |
TWI455863B (en) * | 2012-07-04 | 2014-10-11 | Snu Precision Co Ltd | System for web guide |
JP6984605B2 (en) * | 2016-09-13 | 2021-12-22 | 日本ゼオン株式会社 | Film transport device and film manufacturing method |
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FR2336331A1 (en) * | 1975-12-22 | 1977-07-22 | Usinor | Steel strip direction changing device - has angled rollers maintain strip in tension |
JPS58100053A (en) * | 1981-12-04 | 1983-06-14 | Sumitomo Heavy Ind Ltd | Running direction changing device for strip |
JPS58135714A (en) * | 1982-02-05 | 1983-08-12 | Sumitomo Heavy Ind Ltd | Device for changing advancing direction of strip |
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JP4828357B2 (en) * | 2006-08-31 | 2011-11-30 | 株式会社フジシールインターナショナル | Accumulator |
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2010
- 2010-06-16 CN CN201090000941.0U patent/CN202829084U/en not_active Expired - Lifetime
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2336331A1 (en) * | 1975-12-22 | 1977-07-22 | Usinor | Steel strip direction changing device - has angled rollers maintain strip in tension |
JPS58100053A (en) * | 1981-12-04 | 1983-06-14 | Sumitomo Heavy Ind Ltd | Running direction changing device for strip |
JPS58135714A (en) * | 1982-02-05 | 1983-08-12 | Sumitomo Heavy Ind Ltd | Device for changing advancing direction of strip |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112195637A (en) * | 2020-11-06 | 2021-01-08 | 刘金红 | Plush fabric forming production system |
CN112195637B (en) * | 2020-11-06 | 2021-10-01 | 宁波宏湾家纺制品有限公司 | Plush fabric forming production system |
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TW201109262A (en) | 2011-03-16 |
JP2011020856A (en) | 2011-02-03 |
TWM427375U (en) | 2012-04-21 |
CN202829084U (en) | 2013-03-27 |
JP5592170B2 (en) | 2014-09-17 |
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