WO2019130918A1 - Method of manufacturing absorbent article and device for manufacturing absorbent article - Google Patents

Method of manufacturing absorbent article and device for manufacturing absorbent article Download PDF

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Publication number
WO2019130918A1
WO2019130918A1 PCT/JP2018/043012 JP2018043012W WO2019130918A1 WO 2019130918 A1 WO2019130918 A1 WO 2019130918A1 JP 2018043012 W JP2018043012 W JP 2018043012W WO 2019130918 A1 WO2019130918 A1 WO 2019130918A1
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WO
WIPO (PCT)
Prior art keywords
absorbent article
manufacturing
processing
unit
angle
Prior art date
Application number
PCT/JP2018/043012
Other languages
French (fr)
Japanese (ja)
Inventor
鈴木　裕一
達也 佐伯
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN201880045619.0A priority Critical patent/CN110913813B/en
Publication of WO2019130918A1 publication Critical patent/WO2019130918A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators

Definitions

  • the present invention relates to a method of manufacturing an absorbent article and an absorbent article manufacturing apparatus.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to carry out a quick return stage change.
  • the main invention to achieve the above object is
  • Process Storing, after the angle adjustment step, information capable of specifying a relative angle between the first angular position and the adjusted second angular position; Manufacturing the above absorbent article by a manufacturing method having After producing the above absorbent article, another absorbent article is produced, A method of manufacturing an absorbent article, wherein the second angular position is set using the information when manufacturing the certain absorbent article again after manufacturing the other absorbent article. .
  • FIG. 3 is a schematic view showing an example of a production line of the absorbent article production apparatus 1. It is the schematic which showed the process unit 10 which processes with a pair of upper and lower rotating bodies. It is a figure showing relation between control part 50 and other devices. It is the figure which removed the replacement part of the process unit 10 which processes with a pair of upper and lower rotating bodies from the mirror plate 20. FIG. It is an explanatory view for explaining the procedure of return stage change.
  • the upper view of FIG. 6 is a schematic side view of the processing unit 10 according to the second embodiment, and the lower view of FIG. 6 is a cross-sectional view of the fitting portion of the upper roll rotation shaft 12U according to the second embodiment. It is the figure shown three. It is a side schematic diagram of processing unit 10 concerning a third embodiment. It is the figure which showed the positioning part on the conveyance path of a rotary body processing unit.
  • Process Storing, after the angle adjustment step, information capable of specifying a relative angle between the first angular position and the adjusted second angular position; Manufacturing the above absorbent article by a manufacturing method having After producing the above absorbent article, another absorbent article is produced, A method of manufacturing an absorbent article, wherein the second angular position is set using the information when manufacturing the certain absorbent article again after manufacturing the other absorbent article.
  • a method of manufacturing such an absorbent article It is desirable that the encoder provided to the first motor and the encoder provided to the second motor be in an energized state until the absorbent article is manufactured again after the other absorbent articles are manufactured. .
  • control unit can detect the rotation angle of each motor before and after the change of stage.
  • a method of manufacturing such an absorbent article Storing the angular positions of the first motor and the second motor when storing the information in the storing step; And a restraining step of restraining the first motor and the second motor in a non-rotatable manner when the encoder provided to the first motor and the encoder provided to the second motor are not energized. desirable.
  • the controller becomes the motor if the encoder is energized again.
  • the rotation angle can be detected.
  • a method of manufacturing such an absorbent article After the production of the absorbent article, when producing the other absorbent article, the second processing section is replaced with another processing section, After manufacturing the other absorbent article, when manufacturing an absorbent article again, it is desirable to change to the other processing part and to use the second processing part again.
  • a method of manufacturing such an absorbent article further includes a tension adjustment step of adjusting tension applied to the material relating to the absorbent article, It is desirable to carry out the angle adjustment step after the tension adjustment step.
  • a method of manufacturing such an absorbent article further includes a speed adjustment step of adjusting the transfer speed of the material, It is desirable to perform the angle adjustment step after the speed adjustment step.
  • a method of manufacturing such an absorbent article In the conveying step, the material fed from the material roll is conveyed; Replacing the material roll with a new material roll; It is desirable to carry out the angle adjustment step after the replacement step.
  • a method of manufacturing such an absorbent article The second processing unit including the second processing unit includes a heating unit, The method further comprises a temperature adjustment step of adjusting the heating temperature of the heating unit, Storing the adjusted heating temperature in the storing step; After manufacturing the other absorbent article, when manufacturing the certain absorbent article again, it is desirable to heat the heating unit at the stored heating temperature.
  • temperature adjustment of a heating part can be performed promptly at the time of return stage change, and it becomes possible to perform return stage change still more rapidly.
  • the second processing unit including the second processing unit includes a pressing unit, The method further includes a pressure adjustment step of adjusting the pressure of the pressure unit, Storing the pressure after adjustment in the storing step; After manufacturing the other absorbent article, when manufacturing the certain absorbent article again, it is desirable that the pressure part is pressed by the stored pressure.
  • the pressure adjustment of the pressure part can be performed promptly at the time of the return stage change, and the return stage change can be performed more quickly.
  • a method of manufacturing such an absorbent article A third processing step of applying an adhesive to the material at a third position in the transport direction, using a third processing unit, at a timing when it is rotated by a third rotation angle around the predetermined rotation axis from the rotation reference position And have Another angle adjustment for adjusting a third angle position so that a portion subjected to the first processing and a portion to which the adhesive is applied have a predetermined positional relationship in the material in which the tension is released.
  • the information includes information that can specify a relative angle between the first angular position and the adjusted third angular position.
  • the third angular position is set.
  • a method of manufacturing such an absorbent article In the memory step, the last angle adjustment step among the angle adjustment step performed when manufacturing the certain absorbent article before manufacturing the first angular position and the other absorbent article It is desirable to store the relative angle between the second angular position adjusted in step (1) and (2) as identifiable information.
  • a reference unit for setting a rotation reference position about a predetermined rotation axis A transport mechanism that transports the material relating to the absorbent article along a transport direction in a tensioned state in order to manufacture an absorbent article; A first motor and a first processing unit rotated about a first rotation shaft by the first motor, wherein the first motor rotates from the reference rotation position by a first rotation angle at the first position in the transport direction.
  • a first processing mechanism that performs first processing on the material at a rotational position of the first motor corresponding to the first angular position, A second motor and a second processing unit that rotates about a second rotation shaft by the second motor, and rotates by a second rotation angle around the predetermined rotation shaft from the rotation reference position at a second position in the transport direction
  • a second processing mechanism that performs a second processing on the material at a rotational position of the second motor corresponding to the second angular position
  • a control unit configured to adjust a second angular position such that a portion subjected to the first processing and a portion subjected to the second processing have a predetermined positional relationship in the material in which the tension is released; , A storage unit for storing information;
  • the control unit after adjusting the second angular position, stores information capable of specifying the relative angle between the first angular position and the adjusted second angular position.
  • absorbent article examples include sanitary napkins, unfolded and pants-type disposable diapers, and the like, but any article may be used as long as it absorbs the excretory fluid of the person to be worn.
  • the absorbent article comprises an absorbent for absorbing excrement fluid, a liquid-permeable top sheet disposed on the skin side in the thickness direction of the absorbent, and a non-skin disposed on the non-skin side of the absorbent. It has the liquid impervious back sheet which prevents the leak of the excretion fluid, and thread rubber as an example of an elastic member. And a back sheet is provided with a back film and a back nonwoven fabric, and is formed by both overlapping.
  • the absorbent has an absorbent core formed of a liquid absorbent material.
  • liquid absorbent materials include pulp fibers and superabsorbent polymers (SAPs), which are used here.
  • SAPs superabsorbent polymers
  • a nonwoven fabric containing thermoplastic resin fibers such as polyethylene and polypropylene can be mentioned, and as a back film, a thermoplastic resin film such as polyethylene can be exemplified.
  • FIG. 1 is a schematic view showing an example of a production line of the absorbent article production apparatus 1.
  • the absorbent article manufacturing apparatus 1 continuously performs various processes of cutting, pressing, and sticking on a material relating to the absorbent article to be transported at a product pitch (the interval between products in the transport direction).
  • the produced absorbent article is formed into a continuous sheet-like material at the product pitch, and finally divided into individual absorbent articles to produce a finished absorbent article.
  • a processing unit 10 corresponding to a processing mechanism having a processing unit that performs predetermined processing.
  • the processing unit 10 that performs various processing is provided at a predetermined position on the material conveyance path, and the processing unit operates by the power of a power source (such as a motor) to perform processing.
  • a power source such as a motor
  • FIG. 1 in order to explain the present invention in an easy-to-understand manner, some of the processing units 10 are omitted (the description of the processing unit 10 is also omitted hereinafter).
  • the absorbent article manufacturing apparatus 1 includes a top line 3 for processing the top sheet to be conveyed, and an absorber line 4 for processing the absorber.
  • the top sheet conveyed by the top line 3 is a sheet-like material, and the top sheet is carried into the top line 3 in the form of a material roll in which the top sheet is wound in a coil. That is, the top sheet is drawn from a material roll on which the top sheet is wound, and the drawn top sheet is conveyed by a conveyance mechanism (not shown) in the conveyance direction (the continuous direction of the top sheet). Then, after the top sheet is subjected to various processing, it reaches a junction point A, and a product material sheet is generated.
  • the top sheet fed from the material roll and conveyed on the top line 3 reaches the embossing unit 10e.
  • the embossing unit 10e is an apparatus for embossing the top sheet at a product pitch, and has a processing unit including a pair of upper and lower rotating bodies sandwiching the top sheet to be conveyed.
  • a convex pattern of a predetermined pattern is engraved on the outer peripheral surface of the upper roll 11U (rotary body), and a concave portion corresponding to the convex portion of the outer peripheral surface of the upper roll 11U is engraved on the outer peripheral surface of the lower roll 11L (rotary body) It is done.
  • the concavo-convex portions on the outer peripheral surface of the upper roll 11U and the lower roll 11L are heated by the heating unit, and the concavo-convex portion thus heated cooperates with the top sheet to be conveyed (meshed).
  • the top sheet is embossed.
  • the embossed top sheet is conveyed on the top line 3 and reaches the tape application unit 10d.
  • the tape sticking unit 10d is a device for sticking a fastening tape using a transfer roll, which is a rotating body, on a top sheet at a product pitch, and a pair of upper and lower rotations for sticking a fastening tape across a conveyed top sheet. It has a processing part which consists of a body.
  • An intake port is provided on the outer peripheral surface of the upper roll 11U, and suction force generates suction force, and the upper roll 11U rotates in a state where the fastening tape is adsorbed on the outer peripheral surface.
  • the upper roll 11U rotates and the fastening tape adsorbed on the outer circumferential surface reaches the position facing the lower roll 11L, the upper roll 11U stops the suction (intake) of the fastening tape. Then, in cooperation with the lower roll 11L, the fastening tape is sandwiched between the top sheet and pressed. In the fastening tape, an adhesive is applied to a portion to be joined to the top sheet, and the fastening process of the fastening tape is performed by pressing and sticking the adhesive on the top sheet.
  • the top sheet to which the fastening tape is attached is conveyed on the top line 3 and reaches the adhesive application unit 10c.
  • the adhesive application unit 10c is a device for applying a hot melt adhesive (hereinafter also referred to as an adhesive) to the top sheet at a product pitch, and has a processing unit for applying the hot melt adhesive.
  • the processing unit is provided with a nozzle for discharging a liquid hot melt adhesive, and the hot melt adhesive is applied to the top sheet by discharging the hot melt adhesive from the tip of the nozzle onto the top sheet. .
  • the top sheet coated with the hot melt adhesive is conveyed on the top line 3 and reaches the junction point A.
  • the absorbers subjected to various processing are conveyed by the processing unit 10 provided on the conveyance path of the material (absorbent) to be conveyed, and reach the junction point A, and in the back line 5 A back sheet subjected to various processing is conveyed by the processing unit 10 provided on the conveyance path of the material (back sheet) to be conveyed, and reaches the junction point A.
  • the top sheet conveyed on the top line 3 and the back sheet conveyed on the back line 5 join together so as to sandwich the absorber conveyed on the absorber line 4, and the top sheet
  • the product material sheet is generated by bonding the back sheet to the back sheet with an adhesive or the like.
  • the product material sheet generated at the joining point A is transported by the transport mechanism to the product line 2 and reaches the rotary die cutter unit 10b.
  • the rotary die cutter unit 10b is an apparatus for forming the outer shape of an absorbent article using a rotary die cutter which is a rotating body on a product material sheet at a product pitch, and a pair of upper and lower rotations sandwiching the transported product material sheet It has a processing part which consists of a body.
  • the upper roll 11U is equipped with a cutting blade (upper blade), and the lower roll 11L is equipped with an anvil (lower blade) that receives the cutting blade of the upper roll 11U.
  • the upper blade of the upper roll 11U and the lower blade of the lower roll 11L cooperate with each other at the position where the upper roll 11U and the lower roll 11L face each other to cut and process the product material sheet, thereby forming the outer shape of the absorbent article on the product material sheet. Form a shape.
  • the product material sheet in which the outer shape of the absorbent article is formed is conveyed through the product line 2 and reaches the end cutting unit 10a.
  • the end cutting unit 10a is a device for separating absorbent articles continuously generated on a product material sheet at a product pitch into individual absorbent articles by an end cutter which is a rotating body, and sandwiching the conveyed product material sheet It has a processing part which consists of a pair of upper and lower rotating bodies.
  • the upper roll 11U is provided with an upper blade
  • the lower roll 11L is provided with a lower blade for receiving the upper blade.
  • the upper blade of the upper roll 11U and the lower blade of the lower roll 11L are cut so as to cross from one end of the product material sheet in the width direction to the other end in cooperation at the position where the upper roll 11U and the lower roll 11L face each other .
  • the absorbent articles continuously produced on the product material sheet are divided into individual absorbent articles, and a finished absorbent article is manufactured.
  • FIG. 2 is a schematic view showing a processing unit 10 for processing by a pair of upper and lower rotating bodies.
  • the left view of FIG. 2 is a front schematic view of the processing unit 10, and the right view of FIG. 2 is a side schematic view of the processing unit 10.
  • the end cutting unit 10a, the rotary die cutter unit 10b, the tape sticking unit 10d, and the embossing unit 10e are all processing units 10 that perform processing with a pair of upper and lower rotating bodies, and have the configuration shown in FIG. Have.
  • the processing unit 10 which performs processing by a pair of upper and lower rotating bodies shown in FIG. 2 is also referred to as a rotating body processing unit. Then, the configuration of the rotating body processing unit will be described using FIG. 2 (the adhesive application unit 10c will be described later).
  • the rotating body processing unit includes a processing portion of an upper roll 11U and a lower roll 11L, which are a pair of upper and lower rotating bodies, and the material to be conveyed passes through opposing positions F where the upper roll 11U and the lower roll 11L face each other. Then, when the material passes through the facing position F, the processing unit processes the material.
  • a processing unit (upper roll 11U and lower roll 11L) of the rotating body processing unit is provided on the front side of the end plate 20 (on the left side of the end plate 20 in the right view of FIG. 2), and a unit provided on the front side of the end plate 20. It is installed on the gantry 15.
  • the unit mounts 15 are provided corresponding to the respective rotary body processing units, and are fixed at predetermined positions of the end plate 20.
  • the installation of the processing unit of the rotating body processing unit on the unit mount frame 15 is performed by installing the replacement unit of the rotating body processing unit.
  • the replacement portion is a portion constituting a unit for replacing the processing portion with another processing portion in the step change of the absorbent article manufacturing apparatus 1 described later, and has a processing portion and a positioning portion. ing.
  • positioning of the installation position is performed by the positioning portion, and as shown in the left view of FIG. 10n and the convex portion 15a provided on the rotational body processing unit replacement surface of the unit rack frame 15 (surface contacting the bottom surface of the replacement portion) are fitted.
  • the rotating body processing unit is installed at a predetermined position of the unit mount frame 15, and each rotating body processing unit transfers the material of the absorbent article manufacturing apparatus 1. It will be provided at a predetermined position of the line. Therefore, for example, even when a replacement part (for example, the end cutting unit 10a) of a certain rotary body processing unit is once removed and then reinstalled, another rotary body processing unit (for example, rotary die cutter unit before removal and after attachment) 10b) and the distance on the material transport route become equal.
  • a replacement part for example, the end cutting unit 10a
  • another rotary body processing unit for example, rotary die cutter unit before removal and after attachment
  • a drive unit 30 is provided on the back side of the end plate 20 (right side of the end plate 20 in the right view of FIG. 2) as a power source.
  • the drive part 30 is provided 1 each with respect to one rotation body processing unit.
  • the drive unit 30 according to the present embodiment is a servomotor as an example of a motor that is driven to rotate, and is fixed to the back side of the end plate 20.
  • the servomotor has an encoder, which detects the rotation angle of the servomotor and transmits the detection result to the control unit 50 described later. Examples of the encoder include an optical encoder and a magnetic encoder.
  • the drive shaft 31 of the drive unit 30 is provided with a drive gear 32 and meshes with the upper roll gear 13U. That is, when the drive unit 30 is driven to rotate, the drive gear 32 is rotated via the drive shaft 31 to rotate the upper roll gear 13U.
  • the upper roll rotary shaft 12U is rotatably supported by a support (not shown) provided so as to penetrate from the back side of the mirror plate 20 to the front side, and the upper roll gear 13U is fixed to one end side and the upper end to the other end side
  • the roll 11U is fixed. That is, when the drive unit 30 is driven and rotated, the upper roll gear 13U is rotated, and when the upper roll gear 13U is rotated, the upper roll 11U is rotated via the upper roll rotation shaft 12U.
  • the lower roll 11L also has the same configuration as the upper roll 11U, and when the lower roll gear 13L rotates, the lower roll 11L rotates via the lower roll rotation shaft 12L.
  • the lower roll gear 13L meshes with the upper roll gear 13U so that the rotational direction is opposite. That is, when the upper roll gear 13U (upper roll 11U) rotates to the right, the lower roll gear 13L (lower roll 11L) is engaged with each other so that the lower roll gear 13L (the lower roll 11L) rotates to the left.
  • the upper roll gear 13U and the lower roll gear 13L are meshed so that the upper roll 11U and the lower roll 11L rotate at the same rotational speed, and in this embodiment as well, ing.
  • the upper blade of the upper roll 11U and the lower blade of the lower roll 11L perform cutting processing of material at the facing position F
  • the upper roll 11U rotates 360 degrees
  • the lower roll 11L also rotates 360 degrees
  • the facing position F In this case, the upper blade and the lower blade are configured to perform the same cutting process again.
  • the adhesive application unit 10 c is provided on the front side of the mirror plate 20 and is fixed to a predetermined position of the mirror plate 20.
  • the adhesive application unit 10c in order to apply a hot melt adhesive for bonding the top sheet and the back sheet to the joint surface of the top sheet, the adhesive application unit 10c is provided on the side where the joint surface is present.
  • the supply of the hot melt adhesive to the hot melt adhesive application device is performed from a melting tank provided in the absorbent article manufacturing apparatus 1.
  • the melting tank melts the hot melt adhesive from solid to liquid and supplies the liquid hot melt adhesive to the hot melt adhesive applicator through the passage pipe.
  • the predetermined processing position (application position) of the material is conveyed to the position where the application device applies the hot melt adhesive, the hot melt adhesive application device starts discharging the hot melt adhesive from the nozzle. Apply the hot melt adhesive to a predetermined processing position (application position) of the material.
  • the end cutting unit 10a to the embossing unit 10e have a function and an adjustment function corresponding to each processing purpose.
  • processing unit 10 which performs embossing of embossing unit 10e
  • it has a temperature control function which adjusts temperature of a heating part which heats an uneven part, and a heated uneven part with heating temperature of a heating part ( Equivalent to temperature adjustment process).
  • it has a pressure unit for pressing the uneven portion (upper roll 11U and lower roll 11L) and a pressure adjustment function for adjusting the pressing force (corresponding to the pressing force adjustment step).
  • Each processing unit 10 needs to perform predetermined processing at a predetermined position of the completed absorbent article. That is, it is necessary to perform predetermined processing at a predetermined position of the material to be transported. If processing is performed at a position deviated from the predetermined position, the completed absorbent article becomes defective and must be discarded. Therefore, it is necessary to control the operation of the processing unit 10 so that the processing position of each processing unit 10 becomes a predetermined position of the material.
  • the absorbent article manufacturing apparatus 1 in order to control the operation of the processing unit 10, the absorbent article manufacturing apparatus 1 is provided with one reference portion.
  • the reference portion has an origin and serves as a reference of the operation of each processing unit 10. That is, each processing unit 10 starts (stops) the operation simultaneously with the start (stop) of the operation of the reference portion, and interlocks with the movement of the reference point of the reference portion as a reference.
  • a processing angle is set in the processing unit 10. The processing angle is a predetermined position of the material to which the processing unit 10 having the processing angle set is conveyed when the origin of the reference portion is rotated and reaches the processing angle. Is set to perform processing.
  • the processing angle of the processing unit 10 differs depending on each processing unit 10, and which position of the processing unit of the processing unit 10 is to be processed (for example, if the processing unit is a rotating body and a cutting device, the rotating body Of which position about the rotation axis of the cutting unit 10), which position in the conveying direction of the material to which the processing unit 10 is conveyed, the processing unit 10 is provided at which position on the conveyance path It is set in consideration of conditions such as That is, each processing unit 10 is set with an individual processing angle.
  • each processing unit 10 operates as follows to a standard part. That is, when the origin of the reference part makes one rotation, the processing part of each rotary body processing unit makes one rotation, and when the origin of the reference part is located at 0 degree (also called the reference part angle), Similarly, the processing part (rotating body) of the rotating body processing unit is positioned at 0 degree (also referred to as a rotating body angle) (that is, for the rotating body angle, the origin of the reference part is positioned at 0 degree) Define the angle of the machined part (rotational body) at the time of 0 degrees). And a processing angle means the angle which a processing part processes with respect to material, when a reference part angle (rotation body angle) turns into that angle. For example, if the processing angle is set to 90 degrees, when the origin of the reference portion and the rotating body are interlocked to rotate and the reference portion angle (rotational body angle) becomes 90 degrees, the processing portion Process the materials.
  • the position where the origin of the reference portion is 0 degree corresponds to one end of the product pitch
  • the position where the origin of the reference portion rotates 360 degrees corresponds to the other end of the product pitch. That is, one end of the absorbent article on the downstream side in the transport direction of the absorbent article formed continuously to the material is at 0 °, and the other end on the upstream side is at 360 ° (the next absorbent property on the upstream side in the transport direction
  • the adhesive application unit 10c which is one end of the article and is 0 degree) (the adhesive application unit 10c which is not the rotating body processing unit will be described later).
  • the reference portion is the drive portion 30 of the end cutting unit 10a, and the origin of the reference portion is set to a position where the rotation angle of the drive shaft 31 (drive gear 32) of the drive portion 30 is 0 degree. That is, the rotation reference position (the origin position of the reference portion) about the predetermined rotation axis (the drive shaft 31 of the end cutting unit 10a) is set (corresponding to the reference setting step). And the processing angle of each processing unit 10 is set on the basis of the origin of a reference
  • the processing angle of the end cutting unit 10a is 0 degrees
  • the processing angle of the rotary die cutter unit 10b is 30 degrees
  • the processing angle of the tape sticking unit 10d is 60 degrees
  • the processing angle of the embossing unit 10e is 90 degrees.
  • the processing unit of the rotary body processing unit rotates with the drive unit 30 of each rotary body processing unit as a drive source.
  • the motor of the drive unit 30 has an encoder, and the control unit 50 detects the rotation angle of the motor, and the control unit 50 detects the rotation angle of the processing unit of the rotating body processing unit (the rotating body angle).
  • the control unit 50 recognizes the rotation angle of the rotating body processing unit via the rotation angle of the drive unit 30. Therefore, the rotation angle (rotational position) corresponding to the processing angle of each rotary body processing unit exists in each drive part 30.
  • the rotation reference position (reference unit angle Is the first angular position corresponding to the first angular position rotated by a first rotational angle (the processing angle, which is 30 degrees in the above example) about a predetermined rotational axis from the position of 0 °)
  • a second processing unit is used which is processed (corresponding to a first processing step) and rotated about a second rotation axis by a second motor at a second position (for example, a position where the embossing unit 10e is located) in the transport direction.
  • the second processing is performed on the material at the rotational position of the second motor corresponding to the second angular position rotated by the second rotational angle (90 degrees in the above example) around the predetermined rotational axis from the rotational reference position It corresponds to 2 processing step).
  • the adhesive application unit 10c does not have a rotating body like the above-described rotating body processing unit, by assigning the rotation angle of the origin of the reference portion to the product pitch, and converting the processing position into the rotation angle, It is possible to control as above.
  • one end on the downstream side in the conveyance direction of the absorbent article continuously generated on the material corresponds to 0 degree of the origin of the reference portion, and the other end on the upstream side corresponds to 360 degrees of the origin of the reference portion Do.
  • the timing at which the nozzle discharges the hot melt adhesive is converted into a rotation angle from 0 degrees to 360 degrees of the origin of the reference portion so that the hot melt adhesive is applied to the predetermined position of the material, and converted.
  • the rotation angle is taken as the processing angle of the adhesive application unit 10c.
  • the operation of the adhesive application unit 10c for example, the valve of the nozzle It becomes possible to control the opening and closing based on the operation of the reference portion in the same manner as the above-mentioned rotating body processing unit.
  • the third rotation angle (adhesive application unit 10c) around the predetermined rotation axis from the rotation reference position using the third processing unit (nozzle)
  • the adhesive is applied to the material at a timing rotated by the processing angle of (the third processing step).
  • each processing unit 10 operates based on the movement of the reference portion as the operation of the processing unit 10, but in the following, individual processing is performed with respect to changes in the extension state etc.
  • the control of the operation of processing the material to be transported to a predetermined position by adjusting the processing position of the unit 10 individually will be described.
  • the material to be conveyed since the material to be conveyed is in the form of a sheet, the material is easily bent in the thickness direction of the material in a place where the material is not supported (for example, between the processing unit 10 and the processing unit 10). I'm sorry. Then, if the material to be conveyed is bent, when the material passes through the processing unit 10, it may deviate from a predetermined passing position in the width direction, or the material may be wrinkled. That is, it may cause processing defects. Therefore, the transport mechanism that transports the material transports the material relating to the absorbent article along the transport direction with tension applied (corresponding to the transport process). And in this embodiment, the above-mentioned tension is given to materials using a tension adjustment device (refer to Drawing 3). That is, it has the adjustment function which adjusts the tension given to the material which concerns on an absorptive article (equivalent to a tension adjustment process).
  • the sheet-like material according to the absorbent article is made of a stretchable material such as non-woven fabric. Therefore, if the material is conveyed in a tensioned state, the material is always conveyed in a stretched state.
  • the tension adjustment device applies a constant tension so that the expansion state of the material is constant, but the thickness and the width of the sheet-like material have a certain dispersion, and the dispersion state of the material is caused by the dispersion. Change. Also, depending on the surrounding environment of the absorbent article manufacturing apparatus 1 and the environment such as temperature and humidity of the place where the material is stored, the expansion state of the material changes due to the influence of the amount of water and the like contained in the material.
  • the material (top sheet) is fed out and conveyed from the material roll, but this material roll is generated to convey the material sheet, and generally it is fixed at the axial center It is produced by winding a sheet of material at a rotational speed of. Therefore, the tension received when being wound by the sheet of material close to the radial direction from the axial center portion is different from that of the sheet of material and the state of elongation of the material is different. That is, the extension state of the material to be transported changes momentarily while manufacturing the absorbent article. Therefore, it is necessary to control the operation of the processing unit 10 so that the processing position of the processing unit 10 becomes a predetermined position in accordance with the extension state of the material.
  • the absorbent article manufacturing apparatus 1 is provided with a processing position detection unit 40 and a control unit 50 in order to control the operation described above.
  • FIG. 3 is a diagram showing the relationship between the control unit 50 and other devices.
  • the processing position detection unit 40 is a device that detects processing positions of various types of processing processed into the material to be conveyed, and is provided along the material conveyance path. For example, it is an apparatus which detects the processing range of embossing, and an apparatus which detects the sticking position of a fastening tape. Each processing position detection unit 40 detects various processing positions and transmits the detection result to the control unit 50. Examples of the processing position detection unit 40 include an imaging device and a photoelectric tube.
  • the control unit 50 includes an analysis unit 51 and a storage unit 52, and the processing position of the material transmitted from the processing position detection unit 40, the drive unit 30 (more specifically, the encoder included in the drive unit 30), etc. Information such as the rotation angle of the drive shaft 31 is received. Then, the analysis unit 51 analyzes the received information and the information stored in the storage unit 52 to calculate the displacement amount of the processing position. Then, when the deviation amount exceeds the predetermined threshold, the timing of the processing of the processing unit 10 which is performing the processing is adjusted.
  • the processing position detection unit 40 captures an image of the processing position of the corresponding processing at a product pitch (in synchronization with the reference unit) and controls the control unit 50.
  • Send to The control unit 50 displays an image (for example, a processing position where the processing should be performed with respect to a certain processing position (reference position)) in which a reference processing position of processing corresponding to the processing position detection unit 40 is shown
  • the image is stored in the storage unit 52, and the analysis unit 51 reads the image of the reference processing position from the storage unit 52 and compares it with the processing position of the transmitted image. Then, the deviation amount of the processing position from the reference processing position of the target processing portion is calculated.
  • a threshold value of the amount of deviation from the reference processing position is set at the processing position of each processing, and when the amount of deviation exceeds the threshold, the control unit 50 executes the processing unit 10 (rotation body processing unit The rotation speed of the drive unit 30 of.
  • the adjustment of the rotational speed of the drive unit 30 of the rotating body processing unit is performed to adjust (reset) the processing angle set in the rotating body processing unit whose displacement amount exceeds the threshold. For example, when the displacement amount exceeds the threshold value because the processing timing of the rotary body processing unit is late, the processing angle is set so that the phase difference between the reference point origin and the processing angle of the rotary body processing unit becomes small. Reset. In this way, only the processing timing of the rotary body processing unit can be advanced. Specifically, the rotational speed (rotational speeds of the upper roll 11U and the lower roll 11L) of the drive unit 30 of the rotating body processing unit is temporarily increased (the processing timing is earlier) until the deviation amount becomes smaller than the threshold value.
  • the processing angle is reset.
  • the portion where the first processing for example, processing of the rotary die cutter unit 10b
  • the second processing for example, the embossing unit 10e
  • the second angular position e.g., the processing angle of the embossing unit 10e
  • the second angular position is adjusted (corresponding to the angle adjustment step) so that the part subjected to the processing in (a) has a predetermined positional relationship.
  • the timing of discharging the adhesive is adjusted. That is, the processing angle is reset, and the timing of opening and closing the nozzle valve is adjusted. That is, in the material in which the tension is released, a portion to which the first processing (for example, processing of the rotary die cutter unit 10b) is applied and a portion to which the adhesive is applied (application (processing) position of the adhesive application unit 10c)
  • the third angle position (the processing angle of the adhesive application unit 10c) is adjusted (corresponding to another angle adjustment step) such that the position relationship of
  • the processing angle (reset processing angle) of each processing unit 10 adjusted in the angle adjustment step is stored in the storage unit 52. That is, the relative angle between the first angle position (for example, the processing angle of the rotary die cutter unit 10b) and the second angle position after adjustment (for example, the processing angle of the reset emboss unit 10e) after the angle adjustment process.
  • Information for example, both processing angles
  • is stored corresponding to a storage step).
  • the first angle position for example, the processing angle of the rotary die cutter unit 10b
  • the third angle position after adjustment the processing angle of the reset adhesive application unit 10c
  • the information for example, both processing angles which can specify the relative angle of is stored (equivalent to a storage process).
  • the end cutting unit 10a to the embossing unit 10e have the function and the adjustment function according to the processing purpose of each.
  • it is a processing unit which performs embossing of the embossing unit 10e
  • it is equipped with the adjustment function (apparatus) which performs a temperature control process and a pressure adjustment process.
  • the heating temperature, the pressing force, and the like adjusted by the adjusting function are also stored in the storage unit 52 as the heating temperature, the pressing force, and the like of each processing unit 10 (corresponding to a storage step).
  • the stage change is performed using the information such as the processing angle stored in the storage unit 52.
  • the change of the absorbent article manufacturing apparatus 1 is to change the specification of the product of the absorbent article manufactured by the absorbent article manufacturing apparatus 1.
  • Product specifications are product dimensions, shapes, etc. Changes in product specifications are, for example, the case of changing from size M to size L if size, and sanitary napkin if it is shape When changing from a winged to a wingless, or when changing the pattern shape of embossing.
  • the specifications of the product of absorbent articles to be produced may be changed every day or every change of shift work (that is, frequently), and the apparatus for producing absorbent articles each time. A change of 1 is performed.
  • a part of the material relating to the absorbent article and the processing unit for performing various processing may be replaced in order to be replaced according to the specifications to be changed. For example, we may exchange everything. Moreover, in replacement
  • manufacture of the absorbent article by the specification of the same product is intermittently performed repeatedly. That is, after production of one absorbent article, the production of another absorbent article and then production of another absorbent article are repeated intermittently and repeatedly according to the specifications of the product of the absorbent article. It will be. That is, a change is made to restore the original product specifications from one product to another. In the following, this change back will be described.
  • an absorbent article is manufactured using the end cutting unit 10a to the embossing unit 10e described above as a step for returning to the original product specifications, and the end cutting unit 10a to the embossing unit Step of manufacturing another absorbent article by replacing the replacement part of the rotary die cutter unit 10b and the replacement part of the embossing unit 10e in 10e with replacement parts of different processing units 10 (rotary body processing unit) Replacement, and after the production of another absorbent article, the replacement part of each separate processing unit 10 is replaced with the replacement part of the rotary die cutter unit 10b and the embossing unit 10e to produce the above absorbent article Make a change back to.
  • FIG. 4 is a diagram in which the replacement portion of the processing unit 10 that performs processing by a pair of upper and lower rotating bodies is removed from the end plate 20.
  • the upper roll rotation shaft 12U is combined with the upper roll 11U and the lower roll 11L which are the processing portions of the rotating body processing unit.
  • the lower roll rotary shaft 12L, the upper roll gear 13U and the lower roll gear 13L are removed. That is, the engagement between the drive gear 32 and the upper roll gear 13U is released, and the replacement portion of the rotating body processing unit is removed.
  • the exchange part of the rotary die cutter unit 10b and the embossing unit 10e is attached to the position where the exchange part of another rotating body processing unit was installed.
  • the replacement parts of the rotating body processing unit before and after replacement have the same configuration. That is, the exchange part of the rotary die cutter unit 10b and the embossing unit 10e has an upper roll rotary shaft 12U, a lower roll rotary shaft 12L, an upper roll gear 13U and a lower roll gear 13L as well as a processing portion. Further, as described above, the recessed portion 10 n is provided in the lower portion of the replacement portion of the rotary die cutter unit 10 b and the embossing unit 10 e.
  • the rotary die cutter unit 10b and the embossing unit 10e are positioned by engaging the upper roll gear 13U and the drive gear 32 with each other for positioning on the conveyance path by the concave portion 10n and the convex portion 15a of the unit mount frame 15.
  • the exchange part of can be exchanged.
  • each processing angle is adjusted by an angle adjustment process, and this adjustment is carried out
  • the processed (re-set) processing angles are stored in the storage unit 52.
  • rotary die cutter unit 10b and embossing unit 10e are returned to the state in which the absorbent article was previously manufactured using the processing angles stored in storage unit 52. Make a change.
  • each processing unit 10 stored in the storage unit 52 not only for the processing unit 10 that has been replaced but also for each processing unit 10 of the absorbent article manufacturing apparatus 1 (the processing unit 10 that is not replaced).
  • the processing angle of is used to restore the previous absorbent article to its manufactured state.
  • the second angle position (for example, the processing angle of the embossing unit 10e) is set using the stored processing angle).
  • the return step change according to the present embodiment refers to a step change to return to the state in which each processing unit 10 manufactured an absorbent article last time.
  • FIG. 5 is an explanatory view for explaining the procedure of the return stage change.
  • the upper view of FIG. 5 shows the state of the embossing unit 10e immediately before removing the replacement part of the embossing unit 10e last time.
  • a front schematic view of the embossing unit 10e viewed from the left side of the right view of FIG. 2 is shown, and a triangular shape is displayed inside the upper roll 11U.
  • This triangular shape represents the embossed pattern generating portion (a convex pattern engraved on the outer peripheral surface of the upper roll 11U), and when the pattern generating portion faces the material (in other words, in FIG. 5, When the pattern generation unit is located at the 6 o'clock position and is turned downward), the material is embossed.
  • the embossing unit 10e is replaced when the reference part angle (rotational body angle) described above is 0 degrees. That is, the upper view of FIG. 5 shows the state of the embossing unit 10e when the reference portion angle (rotational body angle) is 0 degree. Further, in this case, the processing angle is set to 90 degrees, and it is recorded that the processing angle is 90 degrees also in the storage unit 52 (therefore, in the upper view of FIG. The shape is located at the 9 o'clock position, and when the upper roll 11U is rotated 90 degrees counterclockwise from the state of the above figure, the pattern generation unit faces the material).
  • the processing angle is 90 degrees as in the above figure (that is, from the reference part angle 0 degree)
  • the pattern generation section faces the material).
  • the central view of FIG. 5 is a view showing the state of the embossing unit 10 e immediately after the return step change.
  • the replacement part of the rotating body processing unit is attached, but in this case, it is undetermined at what time the pattern generation part is positioned (attachment Each and every time). This time, as shown in the center view of FIG. 5, as a result of the worker attaching the replacement part, it is assumed that the position of the pattern generation part is 8 o'clock. And, as a matter of course, the absorbent article manufacturing apparatus 1 (control unit 50) can not grasp the attachment position of the replacement unit in the state where the pattern generation unit is positioned.
  • the control unit 50 rotates the upper roll 11U (and the lower roll 11L) to position the pattern generation unit at the 12 o'clock position (refer to the lower diagram in FIG. 5. That is, position it at the 12 o'clock position). Grasp that the pattern generation unit is positioned at the 12 o'clock position).
  • a dog detection unit 41a is provided on the end plate 20, and a dog 41b is provided on the upper roll 11U side (specifically, the upper roll gear 13U) via a bracket 41c.
  • the dog 41b is attached at a position where the pattern generation unit is located at the 12 o'clock position when the dog 41b faces the dog detection unit 41a (the dog detection unit 41a detects the dog 41b).
  • the control unit 50 rotates the upper roll 11U (and the lower roll 11L) and receives the notification regarding dog detection from the dog detection unit 41a.
  • the pattern generation unit can be positioned at the 12 o'clock position.
  • control unit 50 reads from the storage unit 52 the processing angle stored before the start of the return stage change. Then, using the processing angle, setting of the processing angle after the return step change is performed. Specifically, it is as follows.
  • the state of the embossing unit 10e is the state shown in the upper view of FIG.
  • the origin of the reference portion and the rotating body (upper roll 11U) interlock with each other and rotate by 210 degrees
  • the adjusted processing angle is stored as the processing angle of the adhesive application unit 10c. It is stored in 52. Therefore, also for the adhesive application unit 10c, the return step change is performed using the processing angle stored in the storage unit 52. That is, after manufacturing the other absorbent article, when manufacturing the certain absorbent article again, using the information (the processing angle stored in the storage unit 52), the third angle position (adhesive application) Set the processing angle) of the unit 10c.
  • the heating temperature, the pressing force, and the like adjusted by the adjustment function of each processing unit 10 are also stored in the storage unit 52 as the heating temperature, the pressing force, and the like of each processing unit 10. Then, in the present embodiment, the return stage change is performed using the heating temperature, the pressing force, and the like of each processing unit 10 stored in the storage unit 52. That is, after manufacturing the other absorbent article, when manufacturing the certain absorbent article again, the heating unit (pressurizing unit) heats (applys) the stored heating temperature (pressure). Pressure).
  • the return step change is performed using the processing angle of the processing unit 10 finally adjusted in the manufacturing of a certain absorbent article. That is, in the memory process, the angle adjustment process performed when manufacturing an absorbent article before manufacturing another absorbent article and the first angular position (for example, the processing angle of the rotary die cutter unit 10b) Among them, the relative angle between the second angle position (for example, the processing angle of the embossing unit 10e) adjusted in the last angle adjustment step and the relative angle is stored as identifiable information (for example, both processing angles). Therefore, storage of the processing angle of the processing unit 10 in the storage unit 52 may be stored each time of adjustment (resetting), or may be stored only immediately before changing to another absorbent article.
  • the above-mentioned certain absorbent articles are used to set a reference position of rotation about a predetermined rotation axis, and to manufacture a certain absorbent article.
  • a first processing unit rotating the first motor around the first rotation shaft by the first motor at the first position in the conveyance direction, and conveying the material according to the above in the conveyance direction in the tensioned state.
  • the angle adjustment step of adjusting the second angle position so that the portion subjected to the processing has a predetermined positional relationship, and the second angle after adjustment with the first angle position after the angle adjustment step Manufacturing an absorbent article according to a manufacturing method including storing information capable of specifying relative angles with respect to positions, and manufacturing another absorbent article after manufacturing the absorbent article; After manufacturing the other absorbent article, when manufacturing the absorbent article again, the second angular position is set using the information. Therefore, it is possible to perform a quick return stage change.
  • the absorbent article manufacturing apparatus 1 has been switched by replacing the processing unit 10 in accordance with the specification of the product.
  • a long time is spent at the time of the return change, and there is a problem that the productivity is lowered. That is, each time the absorbent article manufacturing apparatus 1 is changed, the manufacturing conditions are reset, and it is necessary to adjust the processing position where the material is processed from the beginning according to the specifications of the product to be subjected to the return stage change.
  • the processing angle adjusted at the time of manufacturing the absorbent article of the previous time is stored in the storage unit 52 to change the stage of the absorbent article.
  • the stored processing angle is used as the processing angle for the return step change. Therefore, it becomes the processing position adjusted when manufacturing the absorbent article in which the processing position at which the processing unit 10 after the return stage change performs processing on the material last time (that is, return to the previous state), There is no need to adjust the processing position (from the initial installation state). That is, it is possible to perform a quick return stage change.
  • the relative angle of the second angular position adjusted in the adjusting step is stored as identifiable information. That is, since the processing position at which processing is performed on the material after the return step change of a certain absorbent article is the last adjusted processing position when manufacturing the absorbent article having the previous time, the return is more rapid. It becomes possible to change the form.
  • the second processing unit provided with the second processing unit further includes a heating unit, and further includes a temperature adjustment step of adjusting the heating temperature of the heating unit, and storing the heating temperature after adjustment in the storage step.
  • the heating unit is heated at the stored heating temperature. That is, since the heating temperature of the heating unit after changing the stage back to a certain absorbent article is the heating temperature adjusted when manufacturing the absorbent article in the previous time, it is not necessary to adjust the heating temperature from the beginning, It is possible to perform quicker return stage change.
  • the second processing unit provided with the second processing unit further includes a pressing unit, and further includes a pressing force adjusting step of adjusting the pressing force of the pressing unit, and the adding step after the adjustment in the memory step.
  • the pressurizing unit After storing the pressure and manufacturing the other absorbent article, when manufacturing the certain absorbent article again, the pressurizing unit applies pressure with the stored pressure. That is, the pressure applied to the material after the replacement of the absorbent article is the pressure applied when the absorbent article was manufactured last time, and the pressure applied must be adjusted from one to another. As a result, it is possible to perform quicker return stage change.
  • an adhesive is applied to the material at a timing at which the third processing unit is used to rotate the third rotation angle around the predetermined rotation axis from the rotation reference position at the third position in the transport direction.
  • a third angular position such that the material subjected to the first processing has a predetermined positional relationship with the portion to which the first processing has been applied and the portion to which the adhesive is applied in the material whose tension has been released, which further includes a processing step. Further includes another angle adjusting step of adjusting the information, the information including information capable of specifying a relative angle between the first angular position and the adjusted third angular position, the other absorbent article
  • the third angular position is set using the information when manufacturing the certain absorbent article again after manufacturing the above. Therefore, even in the processing unit 10 that does not have a rotating body as a processing unit such as an adhesive application device, it is possible to perform a quick return stage change.
  • FIG. 6 corresponds to the right view of FIG. 2 and is a schematic side view of the processing unit 10 according to the second embodiment, and the lower view of FIG. 6 is an upper roll according to the second embodiment. It is the figure which showed three cross-sectional shapes in the fitting part of 12 A of rotating shafts.
  • the upper roll rotary shaft 12U when replacing the replacement part of the rotary body processing unit, the upper roll rotary shaft 12U is coupled to the coupling (shaft joint, instead of releasing the engagement between the upper roll gear 13U and the drive gear 32).
  • the replacement part of the rotating body processing unit is replaced by attaching and detaching. Therefore, the rotary body processing unit according to the second embodiment is provided on the upper roll rotation shaft 12U (hereinafter, also referred to as a rotation shaft on the drive unit 30 side) provided on the upper roll gear 13U and the upper roll 11U.
  • An upper roll rotary shaft 12U (hereinafter also referred to as a rotary shaft on the exchange portion side) and two upper roll rotary shafts 12U (hereinafter also referred to as two rotary shafts) are provided, and the two rotary shafts are fitted together A part (shaft and hole) is provided. And the cross section of the fitting part provided in these two rotating shafts is not circular shape, but is partially deformed.
  • the axial side cross-sectional shape of the fitting portion crosses in the radial direction, such as a shape with a notch at an angle from the center of the rotation axis to the outer periphery, such as the cross-sectional shape on the left side of the lower figure in FIG. It is possible to use a shape having a notch having a plane in the direction, or a water drop-like shape having a circularly projecting portion such as a cross-sectional shape on the right side of the lower view of FIG. And the hole side cross-sectional shape of a fitting part turns into a cross-sectional shape according to such an axial side cross-sectional shape.
  • the encoders of the drive units 30 included in the respective rotating body processing units are in a state of being energized before and after the stage change. That is, after manufacturing another absorbent article, the encoder provided in the first motor (for example, the drive unit 30 disposed in the rotary die cutter unit 10b) until another absorbent article is manufactured again, and the second The encoder provided in the motor (for example, the drive unit 30 disposed in the embossing unit 10e) is in the energized state.
  • the term "energization” as used herein refers to a state where electricity is supplied to the device, and does not mean that the power of the device is turned on or off.
  • the stage change of the rotary body processing unit only the replacement portion of the rotary body processing unit is replaced to change the drive unit 30 of the rotary body processing unit. Not to replace it. That is, after manufacturing the absorbent article, when manufacturing the other absorbent article, after using the other processing unit instead of the second processing unit, after manufacturing the other absorbent article When manufacturing the said absorbent article again, it changes to the said other process part, and uses the said 2nd process part again.
  • the power plug can be maintained in the state of being inserted into the power source during the change of the rotary body processing unit, so that the encoder can be easily energized.
  • the degree of attachment may be determined as described above (when the pattern generation portion is positioned. Event does not occur. That is, the rotational angle of the drive unit 30 and the position of the pattern generation unit correspond to each other in one-to-one correspondence, and this correspondence does not change at the time of attachment. Therefore, when the encoder is energized, the control unit 50 can grasp not only the rotation angle of the drive unit 30 but also the position of the pattern generation unit before and after the change of stage.
  • the transport path of the replacement part (machining part) of the rotary body processing unit after return stage change The position at the same position as the position on the transport path where the replacement portion (processing portion) of the rotating body processing unit was installed before the removal. That is, the replacement part (processing part) of a certain rotating body processing unit is installed only at a predetermined position on the transport path (unit rack 15).
  • FIG. 7 corresponds to the right view of FIG. 2 and is a schematic side view of the processing unit 10 according to the third embodiment.
  • the upper roll rotary shaft 12U and the lower roll rotary shaft 12L are not released instead of releasing the engagement between the upper roll gear 13U and the drive gear 32. Are respectively attached and detached by couplings (shaft couplings) to replace the processing unit 10. Then, a Schmidt coupling 14 (link type coupling, which can cope with the change of the height dimension of the coupling attachment and detachment position due to the change of the shaft diameter of the processed portion) is used as this coupling.
  • the mechanism on the back side of the mirror plate 20 is not replaced when replacing the replacement part of the rotating body processing unit. That is, the position on the conveyance path of the rotating shaft on the drive unit 30 side is not changed by the replacement of the rotating body processing unit.
  • the mounting and demounting of the Schmidt coupling 14 may be made possible only when the cross-sectional shapes match as in the second embodiment.
  • the angle adjustment step (that is, the continuous angle adjustment step) in which the control unit 50 adjusts the processing angle of each processing unit 10 in response to the change in the extension state of the transported material from moment to moment
  • the angle adjustment process as described above is performed more intermittently. Be sure to execute the angle adjustment process.
  • the tension of the material to be transported is changed by the tension adjusting device, and the angle adjusting process is performed at the timing when the manufacturing conditions of the absorbent article manufacturing apparatus 1 are adjusted. That is, after the tension adjustment step, the angle adjustment step is performed. Changes in the tension applied to the material being transported may cause changes in the material's extensional state. Therefore, by adjusting the processing angle of each processing unit 10 at this timing, the angle adjustment step is performed at an appropriate timing, so that more accurate information can be stored in storage unit 52 when the next storage step is performed. It can be stored, and it becomes possible to carry out quick return stage change.
  • the conveyance speed of the material to be conveyed is changed by the conveyance mechanism, and the angle adjustment process is executed at the timing when the manufacturing conditions of the absorbent article manufacturing apparatus 1 are adjusted. That is, after the speed adjustment process, the angle adjustment process is performed.
  • the conveyance mechanism for conveying the material has a function of adjusting the conveyance speed of the material (corresponding to the speed adjustment process), and the conveyance speed of the material is adjusted to adjust the production amount of the absorbent article per unit time. May adjust. For example, the production of the absorbent article may be stopped due to some failure, and the delivery speed of the material may be increased in order to increase the production of the absorbent article per unit time more than usual after production resumes.
  • the moving speed of the material is changed, which may change the extension state of the material. Therefore, by adjusting the processing angle of each processing unit 10 at this timing, the angle adjustment step is performed at an appropriate timing, so that more accurate information can be stored in storage unit 52 when the next storage step is performed. It can be stored, and it becomes possible to carry out quick return stage change.
  • the top sheet is fed from the material roll and conveyed on the top line 3
  • the top sheet is fed from the material roll of the top sheet being conveyed to the material roll of the next new top sheet.
  • the angle adjustment process is also performed when changing the source. That is, after the material roll is replaced with the next new material roll (corresponding to the replacement process), the angle adjustment process is performed.
  • Supply source exchange of material from an existing material roll to a new material roll is performed by joining the existing material roll and the new material roll by material joining. That is, when the supply source is switched from the existing material roll to the new material roll, the radial position of the material roll from which the material is fed is simultaneously moved outward in the radial direction.
  • extension state of the material sheet wound around the material roll changes with radial directions. That is, at the timing of switching to a new material roll, the radial position of the material roll of the material sheet to be fed out changes significantly, so that the extension state of the material may also change. Therefore, it is desirable to adjust the processing angle of each processing unit 10. Therefore, by adjusting the processing angle of each processing unit 10 at this timing, the angle adjustment step is performed at an appropriate timing, so that more accurate information can be stored in storage unit 52 when the next storage step is performed. It can be stored, and it becomes possible to carry out quick return stage change.
  • the control unit 50 can detect the rotation angle of each driving unit 30 before and after the switching by performing the step change while the encoders of the respective drive units 30 are energized. But it is not limited to this. For example, even when the encoders of the respective drive units 30 are de-energized, the drive shaft 31 of the respective drive units 30 can not be rotated before being de-energized. May be stored in the storage unit 52, and the restricted state may be maintained while the encoder is in the non-energized state. That is, in the storage step, the angular positions of the first motor and the second motor at the time of storing the information are stored, and an encoder provided in the first motor and a second motor are provided. When the encoder is in the non-energized state, each of the first motor and the second motor may be non-rotatably restrained (corresponding to a restraining step).
  • the control unit 50 reads the rotation angles of the respective drive units 30 from the storage unit 52, and the respective drive units If the rotation state is set to 30 and then released from the restricted state, the control unit 50 can detect the rotation angle of each drive unit 30 without executing the origination of the drive unit 30.
  • restraining the drive shaft 31 there is a restraining mechanism which presses a restraining portion which has high friction force and is unlikely to slip with the drive shaft 31 over the entire circumference of a part of the outer peripheral surface of the drive shaft 31. Can provide an example in which the rotation of the drive shaft 31 is mechanically restrained using a frictional force.
  • the positioning of the replacement portion of the rotating body processing unit on the transport path is performed by fitting the concave portion 10n and the convex portion 15a, but the present invention is not limited thereto.
  • the outer side surface of the replacement portion of the rotary body processing unit and the inner side surface of the unit rack 15 are fitted together, and the exchange portion installation surface of the rotary body processing unit of the unit rack 15 is You may provide the slide rail 16 (air slide rail) for moving the replacement part of a rotary body processing unit.
  • the end plate 20 may be provided with a positioning portion 20 a which is fitted and positioned with the outer surface of the replacement portion of the rotating body processing unit.
  • a hole may be provided in the replacement part of the rotating body processing unit, and the positioning rod 20b provided on the end plate 20 may be positioned in a fitted manner.
  • the mechanism using the gear was used as a transmission mechanism of drive rotation with the drive part 30 of a rotary body processing unit, and a process part, it does not restrict to this.
  • a transmission mechanism of drive rotation using a pulley and a belt may be used.
  • the process angle was made into the single angle, it does not restrict to this.
  • the range of the start rotation angle and the end rotation angle of processing may be used as the processing angle.
  • the return step change was performed using the process angle of the process unit 10 finally adjusted in manufacture of a certain absorbent article in the last time, it does not restrict to this.
  • the return stage change may be performed using not only the processing angle but also the heating temperature and pressure adjusted last.
  • the rotary body processing unit had only a pair of upper and lower rotary bodies, it does not restrict to this.
  • the power plug is connected to the power source before and after the return step change to put the encoder into the energized state, but the present invention is not limited to this.
  • the processing unit 10 may be provided with a battery back-up, and the battery back-up may be turned on.
  • the reference portion is the drive portion 30 of the end cutting unit 10a
  • the present invention is not limited to this.
  • a reference unit may be provided separately from the processing unit 10 and used only for setting the origin.
  • processing unit 10 provided in the top line 3 and the product line 2 was demonstrated, it does not restrict to this.
  • the present invention is also applicable to the processing units 10 provided in the absorber line 4 and the back line 5.

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Abstract

A method of manufacturing an absorbent article including: a reference setting step of setting a rotation reference position for rotation about a predetermined rotational axis; a conveying step of conveying material in a conveying direction; a first (second) processing step of performing a first (second) process at a rotational position of a first (second) motor that corresponds to a first (second) angular position rotated by a first (second) rotational angle about the predetermined rotational axis from the rotation reference position at a first (second) position; an angle adjusting step of adjusting the second angular position such that sites of the first process and the second process are in a predetermined positional relationship; and a storing step of storing information which can identity, after the angle adjusting step, the relative angle between the first angular position and the adjusted second angular position. The method of manufacturing an absorbent article is characterized in that when manufacturing another absorbent article after manufacturing a certain absorbent article and then once again manufacturing the certain absorbent article, the second angular position is set using the information.

Description

吸収性物品の製造方法及び吸収性物品製造装置Method of manufacturing absorbent article and absorbent article manufacturing apparatus
　本発明は、吸収性物品の製造方法及び吸収性物品製造装置に関する。 The present invention relates to a method of manufacturing an absorbent article and an absorbent article manufacturing apparatus.
　吸収性物品の製造ラインでは、搬送される吸収性物品に係る資材に対して切断加工、プレス加工、貼付加工等の各種加工を行う。これらの各種加工は、製造する製品の寸法、形状等の仕様に合わせることが必要である。そのため、製造する製品の仕様を変更する際には、吸収性物品を製造する吸収性物品製造装置の変更（段替え）が必要となる。 In the production line for absorbent articles, various processes such as cutting, pressing, and sticking are performed on the material relating to the conveyed absorbent articles. These various processes are required to match the specifications such as the size and shape of the product to be manufactured. Therefore, when changing the specification of the product to be manufactured, it is necessary to change (change the form of) the absorbent article manufacturing apparatus for manufacturing the absorbent article.
　従来は、製品の仕様に合わせて加工ユニットを交換することにより、吸収性物品製造装置の段替えを行っていた（特許文献１参照）。 Conventionally, the absorbent article manufacturing apparatus has been redesigned by replacing the processing unit in accordance with the specification of the product (see Patent Document 1).
特開２００７－４４３４９号公報JP 2007-44349 A
　しかしながら、加工ユニットを交換して吸収性物品製造装置を段替えする従来の方法では、ある製品の仕様から他の製品の仕様に段替えした後に、再び前記ある製品の仕様に戻す段替え（以下、このような段替えを、便宜上「戻し段替え」という）の際に長時間を費やすこととなり、生産性が低下する問題があった。 However, in the conventional method of changing the processing unit and changing the absorbent article manufacturing apparatus, after changing the specification of one product to the specification of another product, the change of the specification of the certain product again (hereinafter referred to as However, for the sake of convenience, such a step change is spent for a long time in the case of "return step change"), and there is a problem that the productivity is lowered.
　本発明は、上記のような問題を鑑みてなされたものであって、その目的とするところは、速やかな戻し段替えを行うことにある。 The present invention has been made in view of the above-described problems, and an object of the present invention is to carry out a quick return stage change.
　上記目的を達成するための主たる発明は、 The main invention to achieve the above object is
　所定回転軸回りの回転基準位置を設定する基準設定工程と、
　ある吸収性物品を製造するために、前記ある吸収性物品に係る資材を、張力を付与した状態で搬送方向に沿って搬送する搬送工程と、
　前記搬送方向における第１位置において、第１モータにより第１回転軸回りに回転する第１加工部を用いて、前記回転基準位置から前記所定回転軸回りに第１回転角度だけ回転した第１角度位置に対応する前記第１モータの回転位置にて、前記資材に第１加工を行う第１加工工程と、
　前記搬送方向における第２位置において、第２モータにより第２回転軸回りに回転する第２加工部を用いて、前記回転基準位置から前記所定回転軸回りに第２回転角度だけ回転した第２角度位置に対応する前記第２モータの回転位置にて、前記資材に第２加工を行う第２加工工程と、
　前記張力が解除された前記資材において、前記第１加工が施された部位と前記第２加工が施された部位とが所定の位置関係となるように、前記第２角度位置を調整する角度調整工程と、
　前記角度調整工程の後に、前記第１角度位置と調整後の前記第２角度位置との相対角度を特定可能な情報を記憶する記憶工程と、
を有する製造方法によって、前記ある吸収性物品を製造し、
　前記ある吸収性物品を製造した後に、他の吸収性物品を製造し、
　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記情報を用いて、前記第２角度位置を設定することを特徴とする吸収性物品の製造方法である。 A reference setting step of setting a rotation reference position about a predetermined rotation axis;
A conveying step of conveying a material according to the absorbent article in a tensioned state along a conveying direction to produce an absorbent article;
At a first position in the transport direction, using a first processing unit rotated about a first rotation axis by a first motor, a first angle rotated about a predetermined rotation axis from the rotation reference position. A first processing step of performing first processing on the material at a rotational position of the first motor corresponding to the position;
At a second position in the transport direction, using a second processing unit rotated about a second rotation axis by a second motor, a second angle rotated about a predetermined rotation axis from the rotation reference position. A second processing step of performing second processing on the material at the rotational position of the second motor corresponding to the position;
Angle adjustment for adjusting the second angular position so that the portion subjected to the first processing and the portion subjected to the second processing have a predetermined positional relationship in the material in which the tension is released. Process,
Storing, after the angle adjustment step, information capable of specifying a relative angle between the first angular position and the adjusted second angular position;
Manufacturing the above absorbent article by a manufacturing method having
After producing the above absorbent article, another absorbent article is produced,
A method of manufacturing an absorbent article, wherein the second angular position is set using the information when manufacturing the certain absorbent article again after manufacturing the other absorbent article. .
　本発明の他の特徴については、本明細書及び添付図面の記載により明らかにする。 Other features of the present invention will be apparent from the description of the present specification and the accompanying drawings.
　本発明によれば、速やかな戻し段替えを行うことが可能となる。 According to the present invention, it is possible to perform a quick return stage change.
吸収性物品製造装置１の製造ラインの一例を示した模式図である。FIG. 3 is a schematic view showing an example of a production line of the absorbent article production apparatus 1. 上下一対の回転体により加工を行う加工ユニット１０を示した概略図である。It is the schematic which showed the process unit 10 which processes with a pair of upper and lower rotating bodies. 制御部５０と他の装置の関係を示した図である。It is a figure showing relation between control part 50 and other devices. 上下一対の回転体により加工を行う加工ユニット１０の交換部を鏡板２０から取り外した図である。It is the figure which removed the replacement part of the process unit 10 which processes with a pair of upper and lower rotating bodies from the mirror plate 20. FIG. 戻し段替えの手順を説明するための説明図である。It is an explanatory view for explaining the procedure of return stage change. 図６の上図は、第二実施の形態に係る加工ユニット１０の側面概略図であり、図６の下図は、第二実施の形態に係る上部ロール回転軸１２Ｕの嵌め合い部における断面形状を３つ示した図である。The upper view of FIG. 6 is a schematic side view of the processing unit 10 according to the second embodiment, and the lower view of FIG. 6 is a cross-sectional view of the fitting portion of the upper roll rotation shaft 12U according to the second embodiment. It is the figure shown three. 第三実施の形態に係る加工ユニット１０の側面概略図である。It is a side schematic diagram of processing unit 10 concerning a third embodiment. 回転体加工ユニットの搬送経路上の位置決め部を示した図である。It is the figure which showed the positioning part on the conveyance path of a rotary body processing unit.
　本明細書及び添付図面の記載により、少なくとも以下の事項が明らかとなる。 At least the following matters will be made clear by the present specification and the description of the accompanying drawings.
　所定回転軸回りの回転基準位置を設定する基準設定工程と、
　ある吸収性物品を製造するために、前記ある吸収性物品に係る資材を、張力を付与した状態で搬送方向に沿って搬送する搬送工程と、
　前記搬送方向における第１位置において、第１モータにより第１回転軸回りに回転する第１加工部を用いて、前記回転基準位置から前記所定回転軸回りに第１回転角度だけ回転した第１角度位置に対応する前記第１モータの回転位置にて、前記資材に第１加工を行う第１加工工程と、
　前記搬送方向における第２位置において、第２モータにより第２回転軸回りに回転する第２加工部を用いて、前記回転基準位置から前記所定回転軸回りに第２回転角度だけ回転した第２角度位置に対応する前記第２モータの回転位置にて、前記資材に第２加工を行う第２加工工程と、
　前記張力が解除された前記資材において、前記第１加工が施された部位と前記第２加工が施された部位とが所定の位置関係となるように、前記第２角度位置を調整する角度調整工程と、
　前記角度調整工程の後に、前記第１角度位置と調整後の前記第２角度位置との相対角度を特定可能な情報を記憶する記憶工程と、
を有する製造方法によって、前記ある吸収性物品を製造し、
　前記ある吸収性物品を製造した後に、他の吸収性物品を製造し、
　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記情報を用いて、前記第２角度位置を設定することを特徴とする吸収性物品の製造方法。 A reference setting step of setting a rotation reference position about a predetermined rotation axis;
A conveying step of conveying a material according to the absorbent article in a tensioned state along a conveying direction to produce an absorbent article;
At a first position in the transport direction, using a first processing unit rotated about a first rotation axis by a first motor, a first angle rotated about a predetermined rotation axis from the rotation reference position. A first processing step of performing first processing on the material at a rotational position of the first motor corresponding to the position;
At a second position in the transport direction, using a second processing unit rotated about a second rotation axis by a second motor, a second angle rotated about a predetermined rotation axis from the rotation reference position. A second processing step of performing second processing on the material at the rotational position of the second motor corresponding to the position;
Angle adjustment for adjusting the second angular position so that the portion subjected to the first processing and the portion subjected to the second processing have a predetermined positional relationship in the material in which the tension is released. Process,
Storing, after the angle adjustment step, information capable of specifying a relative angle between the first angular position and the adjusted second angular position;
Manufacturing the above absorbent article by a manufacturing method having
After producing the above absorbent article, another absorbent article is produced,
A method of manufacturing an absorbent article, wherein the second angular position is set using the information when manufacturing the certain absorbent article again after manufacturing the other absorbent article.
　このような吸収性物品の製造方法によれば、速やかな戻し段替えを行うことが可能となる。 According to the manufacturing method of such an absorbent article, it becomes possible to perform quick return stage change.
　かかる吸収性物品の製造方法であって、
　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造するまで、前記第１モータに設けられたエンコーダー、及び前記第２モータに設けられたエンコーダーは通電状態にあることが望ましい。 A method of manufacturing such an absorbent article,
It is desirable that the encoder provided to the first motor and the encoder provided to the second motor be in an energized state until the absorbent article is manufactured again after the other absorbent articles are manufactured. .
　このような吸収性物品の製造方法によれば、段替えの前後においてそれぞれのモータの回転角度を制御部が検知することができる。 According to such a method of manufacturing an absorbent article, the control unit can detect the rotation angle of each motor before and after the change of stage.
　かかる吸収性物品の製造方法であって、
　前記記憶工程において、前記情報を記憶する際の、前記第１モータ及び前記第２モータの角度位置を記憶し、
　前記第１モータに設けられたエンコーダー、及び前記第２モータに設けられたエンコーダーが非通電状態の際に、前記第１モータ及び前記第２モータをそれぞれ回転不能に拘束する拘束工程を有することが望ましい。 A method of manufacturing such an absorbent article,
Storing the angular positions of the first motor and the second motor when storing the information in the storing step;
And a restraining step of restraining the first motor and the second motor in a non-rotatable manner when the encoder provided to the first motor and the encoder provided to the second motor are not energized. desirable.
　このような吸収性物品の製造方法によれば、段替えの際にエンコーダーが非通電状態となりモータの回転角度を制御部が検知できない場合でも、エンコーダーが再び通電状態となれば制御部がモータの回転角度を検知することができる。 According to such a method of manufacturing an absorbent article, even when the encoder is de-energized at the time of stage change and the control unit can not detect the rotation angle of the motor, the controller becomes the motor if the encoder is energized again. The rotation angle can be detected.
　かかる吸収性物品の製造方法であって、
　前記ある吸収性物品を製造した後に、前記他の吸収性物品を製造する際には、前記第２加工部に換えて他の加工部を用い、
　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際には、前記他の加工部に換えて再度前記第２加工部を用いることが望ましい。 A method of manufacturing such an absorbent article,
After the production of the absorbent article, when producing the other absorbent article, the second processing section is replaced with another processing section,
After manufacturing the other absorbent article, when manufacturing an absorbent article again, it is desirable to change to the other processing part and to use the second processing part again.
　このような吸収性物品の製造方法によれば、戻し段替えの前後においてエンコーダーが通電している状態を容易に実現できる。 According to such a method of manufacturing an absorbent article, it is possible to easily realize the state in which the encoder is energized before and after the return step change.
　かかる吸収性物品の製造方法であって、
　前記ある吸収性物品に係る資材に付与する張力を調整する張力調整工程を更に有し、
　前記張力調整工程の後に、前記角度調整工程を実行することが望ましい。 A method of manufacturing such an absorbent article,
The method further includes a tension adjustment step of adjusting tension applied to the material relating to the absorbent article,
It is desirable to carry out the angle adjustment step after the tension adjustment step.
　このような吸収性物品の製造方法によれば、適切なタイミングで角度調整工程を実行するため、次の記憶工程が実行される際により正確な情報を記憶部に記憶することができ、速やかな戻し段替えを行うことが可能となる。 According to such a method of manufacturing an absorbent article, in order to execute the angle adjustment step at an appropriate timing, more accurate information can be stored in the storage unit when the next storage step is performed, which is quick. It is possible to carry out a reverse setup.
　かかる吸収性物品の製造方法であって、
　前記資材の搬送速度を調整する速度調整工程を更に有し、
　前記速度調整工程の後に、前記角度調整工程を実行することが望ましい。 A method of manufacturing such an absorbent article,
The method further includes a speed adjustment step of adjusting the transfer speed of the material,
It is desirable to perform the angle adjustment step after the speed adjustment step.
　このような吸収性物品の製造方法によれば、適切なタイミングで角度調整工程を実行するため、次の記憶工程が実行される際により正確な情報を記憶部に記憶することができ、速やかな戻し段替えを行うことが可能となる。 According to such a method of manufacturing an absorbent article, in order to execute the angle adjustment step at an appropriate timing, more accurate information can be stored in the storage unit when the next storage step is performed, which is quick. It is possible to carry out a reverse setup.
　かかる吸収性物品の製造方法であって、
　前記搬送工程では、資材ロールから繰り出された前記資材を搬送し、
　前記資材ロールを新しい資材ロールに交換する交換工程を有し、
　前記交換工程の後に、前記角度調整工程を実行することが望ましい。 A method of manufacturing such an absorbent article,
In the conveying step, the material fed from the material roll is conveyed;
Replacing the material roll with a new material roll;
It is desirable to carry out the angle adjustment step after the replacement step.
　このような吸収性物品の製造方法によれば、適切なタイミングで角度調整工程を実行するため、次の記憶工程が実行される際により正確な情報を記憶部に記憶することができ、速やかな戻し段替えを行うことが可能となる。 According to such a method of manufacturing an absorbent article, in order to execute the angle adjustment step at an appropriate timing, more accurate information can be stored in the storage unit when the next storage step is performed, which is quick. It is possible to carry out a reverse setup.
　かかる吸収性物品の製造方法であって、
　前記第２加工部を備えた第２加工ユニットは加熱部を備え、
　前記加熱部の加熱温度を調整する温度調整工程を更に有し、
　前記記憶工程において、調整後の前記加熱温度を記憶し、
　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記加熱部は、記憶された前記加熱温度にて加熱することが望ましい。 A method of manufacturing such an absorbent article,
The second processing unit including the second processing unit includes a heating unit,
The method further comprises a temperature adjustment step of adjusting the heating temperature of the heating unit,
Storing the adjusted heating temperature in the storing step;
After manufacturing the other absorbent article, when manufacturing the certain absorbent article again, it is desirable to heat the heating unit at the stored heating temperature.
　このような吸収性物品の製造方法によれば、戻し段替えの際に加熱部の温度調整を速やかに行うことができ、より一層速やかな戻し段替えを行うことが可能となる。 According to the manufacturing method of such an absorbent article, temperature adjustment of a heating part can be performed promptly at the time of return stage change, and it becomes possible to perform return stage change still more rapidly.
　かかる吸収性物品の製造方法であって、
　前記第２加工部を備えた第２加工ユニットは加圧部を備え、
　前記加圧部の加圧力を調整する加圧力調整工程を更に有し、
　前記記憶工程において、調整後の前記加圧力を記憶し、
　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記加圧部は、記憶された前記加圧力にて加圧することが望ましい。 A method of manufacturing such an absorbent article,
The second processing unit including the second processing unit includes a pressing unit,
The method further includes a pressure adjustment step of adjusting the pressure of the pressure unit,
Storing the pressure after adjustment in the storing step;
After manufacturing the other absorbent article, when manufacturing the certain absorbent article again, it is desirable that the pressure part is pressed by the stored pressure.
　このような吸収性物品の製造方法によれば、戻し段替えの際に加圧部の加圧力調整を速やかに行うことができ、より一層速やかな戻し段替えを行うことが可能となる。 According to such a method for manufacturing an absorbent article, the pressure adjustment of the pressure part can be performed promptly at the time of the return stage change, and the return stage change can be performed more quickly.
　かかる吸収性物品の製造方法であって、
　前記搬送方向における第３位置において、第３加工部用いて、前記回転基準位置から前記所定回転軸回りに第３回転角度だけ回転したタイミングにて、接着剤を前記資材に塗布する第３加工工程を更に有し、
　前記張力が解除された前記資材において、前記第１加工が施された部位と前記接着剤が塗布された部位とが所定の位置関係となるように、第３角度位置を調整する他の角度調整工程を更に有し、
　前記情報は、前記第１角度位置と調整後の前記第３角度位置との相対角度を特定可能な情報が含まれ、
　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記第１角度位置と調整後の前記第３角度位置との相対角度を特定可能な情報を用いて、前記第３角度位置を設定することが望ましい。 A method of manufacturing such an absorbent article,
A third processing step of applying an adhesive to the material at a third position in the transport direction, using a third processing unit, at a timing when it is rotated by a third rotation angle around the predetermined rotation axis from the rotation reference position And have
Another angle adjustment for adjusting a third angle position so that a portion subjected to the first processing and a portion to which the adhesive is applied have a predetermined positional relationship in the material in which the tension is released. Further comprising a process,
The information includes information that can specify a relative angle between the first angular position and the adjusted third angular position.
After manufacturing the other absorbent article, when manufacturing the absorbent article again, using information that can specify the relative angle between the first angular position and the adjusted third angular position, Preferably, the third angular position is set.
　このような吸収性物品の製造方法によれば、接着剤の塗布装置のような加工部として回転体を有さない加工ユニット１０においても、速やかな戻し段替えを行うことが可能となる。 According to such a method of manufacturing an absorbent article, even in the processing unit 10 which does not have a rotating body as a processing part such as an adhesive application device, it is possible to perform a quick return stage change.
　かかる吸収性物品の製造方法であって、
　前記記憶工程においては、前記第１角度位置と、前記他の吸収性物品を製造する前の前記ある吸収性物品を製造する際に行われた前記角度調整工程のうち、最後の前記角度調整工程において調整された前記第２角度位置と、の相対角度を特定可能な情報として記憶することが望ましい。 A method of manufacturing such an absorbent article,
In the memory step, the last angle adjustment step among the angle adjustment step performed when manufacturing the certain absorbent article before manufacturing the first angular position and the other absorbent article It is desirable to store the relative angle between the second angular position adjusted in step (1) and (2) as identifiable information.
　このような吸収性物品の製造方法によれば、ある吸収性物品の戻し段替えにおいて、前回ある吸収性物品を製造していた際の最後に調整した加工位置に戻すため、より一層速やかな戻し段替えを行うことが可能となる。 According to the manufacturing method of such an absorbent article, in the return stage change of a certain absorbent article, in order to return to the processing position adjusted last at the time of manufacturing a certain absorbent article last time, the return is quicker. It becomes possible to change the form.
　所定回転軸回りの回転基準位置を設定するための基準部と、
　吸収性物品を製造するために、前記吸収性物品に係る資材を、張力を付与した状態で搬送方向に沿って搬送する搬送機構と、
　第１モータ及び該第１モータにより第１回転軸回りに回転する第１加工部を備え、前記搬送方向における第１位置において、前記回転基準位置から前記所定回転軸回りに第１回転角度だけ回転した第１角度位置に対応する前記第１モータの回転位置にて、前記資材に第１加工を行う第１加工機構と、
　第２モータ及び該第２モータにより第２回転軸回りに回転する第２加工部を備え、前記搬送方向における第２位置において、前記回転基準位置から前記所定回転軸回りに第２回転角度だけ回転した第２角度位置に対応する前記第２モータの回転位置にて、前記資材に第２加工を行う第２加工機構と、
　前記張力が解除された前記資材において、前記第１加工が施された部位と前記第２加工が施された部位とが所定の位置関係となるように、第２角度位置を調整する制御部と、
　情報を記憶するための記憶部と、
　を有し、
　ある吸収性物品を製造する際に、前記制御部は、前記第２角度位置を調整した後に、第１角度位置と調整後の前記第２角度位置との相対角度を特定可能な情報を記憶部に記憶し、
　前記ある吸収性物品を製造した後に、他の吸収性物品を製造し、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記制御部は、前記情報を用いて、前記第２角度位置を設定することを特徴とする吸収性物品製造装置。 A reference unit for setting a rotation reference position about a predetermined rotation axis;
A transport mechanism that transports the material relating to the absorbent article along a transport direction in a tensioned state in order to manufacture an absorbent article;
A first motor and a first processing unit rotated about a first rotation shaft by the first motor, wherein the first motor rotates from the reference rotation position by a first rotation angle at the first position in the transport direction. A first processing mechanism that performs first processing on the material at a rotational position of the first motor corresponding to the first angular position,
A second motor and a second processing unit that rotates about a second rotation shaft by the second motor, and rotates by a second rotation angle around the predetermined rotation shaft from the rotation reference position at a second position in the transport direction A second processing mechanism that performs a second processing on the material at a rotational position of the second motor corresponding to the second angular position;
A control unit configured to adjust a second angular position such that a portion subjected to the first processing and a portion subjected to the second processing have a predetermined positional relationship in the material in which the tension is released; ,
A storage unit for storing information;
Have
When manufacturing a certain absorbent article, the control unit, after adjusting the second angular position, stores information capable of specifying the relative angle between the first angular position and the adjusted second angular position. Remember to
After manufacturing the certain absorbent article, the other absorbent article is manufactured, and after the other absorbent article is manufactured, when the certain absorbent article is manufactured again, the control unit generates the information An absorbent article manufacturing apparatus characterized by setting the second angular position using the same.
　このような吸収性物品製造装置によれば、前述した吸収性物品の製造方法の場合と同様の作用効果を奏する。 According to such an absorbent article manufacturing apparatus, the same effects as those of the above-described absorbent article manufacturing method can be obtained.
＝＝＝本実施の形態に係る吸収性物品製造方法について＝＝＝
　本実施の形態に係る吸収性物品の製造方法は、吸収性物品製造装置１における吸収性物品の製造で使用される。 === About the absorbent article manufacturing method according to the present embodiment ===
The method for producing an absorbent article according to the present embodiment is used for producing an absorbent article in the absorbent article producing apparatus 1.
　吸収性物品の例としては、生理用ナプキン、展開型やパンツ型の使い捨ておむつ等を挙げることができるが、着用対象者の排泄液を吸収する物品であればどのようなものでも構わない。 Examples of the absorbent article include sanitary napkins, unfolded and pants-type disposable diapers, and the like, but any article may be used as long as it absorbs the excretory fluid of the person to be worn.
　吸収性物品は、排泄液を吸収する吸収体と、吸収体の厚さ方向の肌側に配された液透過性のトップシートと、吸収体の非肌側に配されて非肌側への排泄液の漏れを防ぐ液不透過性のバックシートと、弾性部材の一例としての糸ゴムを有している。そして、バックシートは、バックフィルムとバック不織布とを備え、双方が重なることにより形成されている。 The absorbent article comprises an absorbent for absorbing excrement fluid, a liquid-permeable top sheet disposed on the skin side in the thickness direction of the absorbent, and a non-skin disposed on the non-skin side of the absorbent. It has the liquid impervious back sheet which prevents the leak of the excretion fluid, and thread rubber as an example of an elastic member. And a back sheet is provided with a back film and a back nonwoven fabric, and is formed by both overlapping.
　吸収体は、液体吸収性素材を成形した吸収性コアを有する。液体吸収性素材としては、パルプ繊維及び高吸収性ポリマー（ＳＡＰ）を例示できて、ここでは、これらが使用されている。トップシートやバック不織布の素材例としては、ポリエチレンやポリプロピレン等の熱可塑性樹脂繊維を含有する不織布を挙げることができ、バックフィルムについては、ポリエチレン等の熱可塑性樹脂フィルムを例示できる。 The absorbent has an absorbent core formed of a liquid absorbent material. Examples of liquid absorbent materials include pulp fibers and superabsorbent polymers (SAPs), which are used here. As an example of the material of the top sheet and the back nonwoven fabric, a nonwoven fabric containing thermoplastic resin fibers such as polyethylene and polypropylene can be mentioned, and as a back film, a thermoplastic resin film such as polyethylene can be exemplified.
＜＜＜吸収性物品製造装置１について＞＞＞
　図１は、吸収性物品製造装置１の製造ラインの一例を示した模式図である。吸収性物品製造装置１は、搬送される吸収性物品に係る資材に対し、切断加工、プレス加工、貼付加工の各種加工を製品ピッチ（搬送方向における製品の間隔）で繰り返して行うことにより、連続した吸収性物品を該製品ピッチで連続シート状の資材に生成し、最終的に個々の吸収性物品に切り分けて完成品の吸収性物品を製造する装置である。これらの各種加工は、所定の加工を行う加工部を有する加工ユニット１０（加工機構に相当）により行われる。各種加工を行う加工ユニット１０は、資材の搬送経路上の所定の位置に設けられており、動力源（モータ等）の動力で加工部が動作して加工を行う。なお、図１については、本発明を分かり易く説明するために、幾つかの加工ユニット１０の記載を省略した図としている（以降では、当該加工ユニット１０の説明についても省略している）。 <<< Regarding Absorbent Article Manufacturing Device 1 >>>
FIG. 1 is a schematic view showing an example of a production line of the absorbent article production apparatus 1. The absorbent article manufacturing apparatus 1 continuously performs various processes of cutting, pressing, and sticking on a material relating to the absorbent article to be transported at a product pitch (the interval between products in the transport direction). The produced absorbent article is formed into a continuous sheet-like material at the product pitch, and finally divided into individual absorbent articles to produce a finished absorbent article. These various types of processing are performed by a processing unit 10 (corresponding to a processing mechanism) having a processing unit that performs predetermined processing. The processing unit 10 that performs various processing is provided at a predetermined position on the material conveyance path, and the processing unit operates by the power of a power source (such as a motor) to perform processing. In FIG. 1, in order to explain the present invention in an easy-to-understand manner, some of the processing units 10 are omitted (the description of the processing unit 10 is also omitted hereinafter).
　本実施形態に係る吸収性物品製造装置１は、図１に示すように、搬送されるトップシートに対して加工を行うトップライン３と、吸収体に対して加工を行う吸収体ライン４と、バックシートに対して加工を行うバックライン５と、トップシートと吸収体とバックシートとが合流地点Ａで合流して生成された製品資材シートに対して加工を行う製品ライン２とを有している。 As shown in FIG. 1, the absorbent article manufacturing apparatus 1 according to the present embodiment includes a top line 3 for processing the top sheet to be conveyed, and an absorber line 4 for processing the absorber. A back line 5 for processing the back sheet, and a product line 2 for processing the product material sheet generated by joining the top sheet, the absorber and the back sheet at the joining point A There is.
　トップライン３で搬送されるトップシートはシート状の資材であり、トップシートのトップライン３への搬入は、トップシートがコイル状に巻かれた資材ロールの形態でなされる。すなわち、トップシートが巻かれた資材ロールからトップシートが繰り出され、繰り出されたトップシートは搬送方向（トップシートの連続方向）に不図示の搬送機構によって搬送される。そして、トップシートは各種加工が行われた後に合流地点Ａに至り、製品資材シートが生成される。 The top sheet conveyed by the top line 3 is a sheet-like material, and the top sheet is carried into the top line 3 in the form of a material roll in which the top sheet is wound in a coil. That is, the top sheet is drawn from a material roll on which the top sheet is wound, and the drawn top sheet is conveyed by a conveyance mechanism (not shown) in the conveyance direction (the continuous direction of the top sheet). Then, after the top sheet is subjected to various processing, it reaches a junction point A, and a product material sheet is generated.
　資材ロールから繰り出されてトップライン３を搬送されるトップシートは、エンボス加工ユニット１０ｅに至る。エンボス加工ユニット１０ｅは、製品ピッチでトップシートにエンボス加工を行う装置であり、搬送されるトップシートを挟んで上下一対の回転体からなる加工部を有している。上部ロール１１Ｕ（回転体）の外周面には所定パターンの凸模様を彫られており、下部ロール１１Ｌ（回転体）の外周面には上部ロール１１Ｕの外周面の凸部に応じた凹部が彫られている。これらの上部ロール１１Ｕと下部ロール１１Ｌの外周面の凹凸部は、加熱部により加熱されており、加熱された該凹凸部が搬送されるトップシートに対して協働して挟み込む（噛み合う）ことにより、トップシートにエンボス模様の加工が施される。 The top sheet fed from the material roll and conveyed on the top line 3 reaches the embossing unit 10e. The embossing unit 10e is an apparatus for embossing the top sheet at a product pitch, and has a processing unit including a pair of upper and lower rotating bodies sandwiching the top sheet to be conveyed. A convex pattern of a predetermined pattern is engraved on the outer peripheral surface of the upper roll 11U (rotary body), and a concave portion corresponding to the convex portion of the outer peripheral surface of the upper roll 11U is engraved on the outer peripheral surface of the lower roll 11L (rotary body) It is done. The concavo-convex portions on the outer peripheral surface of the upper roll 11U and the lower roll 11L are heated by the heating unit, and the concavo-convex portion thus heated cooperates with the top sheet to be conveyed (meshed). The top sheet is embossed.
　エンボス加工が施されたトップシートは、トップライン３を搬送されて、テープ貼付ユニット１０ｄに至る。テープ貼付ユニット１０ｄは、製品ピッチでトップシートに回転体である転写ロールを用いてファスニングテープの貼付加工を行う装置であり、搬送されるトップシートを挟んでファスニングテープの貼付を行う上下一対の回転体からなる加工部を有している。上部ロール１１Ｕの外周面には吸気口が設けられ吸気により吸着力が発生しており、上部ロール１１Ｕは外周面にファスニングテープを吸着した状態で回転している。上部ロール１１Ｕが回転して外周面に吸着したファスニングテープが下部ロール１１Ｌと対向する位置に至ると、上部ロール１１Ｕは該ファスニングテープの吸着（吸気）を停止する。そして、下部ロール１１Ｌと協働して該ファスニングテープをトップシートと挟み込んで押圧する。ファスニングテープにはトップシートに接合する部分に接着剤が塗布されており、該接着剤をトップシートに押し付けて貼り付けることにより、ファスニングテープの貼付加工が行われる。 The embossed top sheet is conveyed on the top line 3 and reaches the tape application unit 10d. The tape sticking unit 10d is a device for sticking a fastening tape using a transfer roll, which is a rotating body, on a top sheet at a product pitch, and a pair of upper and lower rotations for sticking a fastening tape across a conveyed top sheet. It has a processing part which consists of a body. An intake port is provided on the outer peripheral surface of the upper roll 11U, and suction force generates suction force, and the upper roll 11U rotates in a state where the fastening tape is adsorbed on the outer peripheral surface. When the upper roll 11U rotates and the fastening tape adsorbed on the outer circumferential surface reaches the position facing the lower roll 11L, the upper roll 11U stops the suction (intake) of the fastening tape. Then, in cooperation with the lower roll 11L, the fastening tape is sandwiched between the top sheet and pressed. In the fastening tape, an adhesive is applied to a portion to be joined to the top sheet, and the fastening process of the fastening tape is performed by pressing and sticking the adhesive on the top sheet.
　ファスニングテープが貼り付けられたトップシートは、トップライン３を搬送されて、接着剤塗布ユニット１０ｃに至る。接着剤塗布ユニット１０ｃは、製品ピッチでトップシートにホットメルト接着剤（以下、接着剤ともいう）を塗布する装置であり、ホットメルト接着剤の塗布を行う加工部を有する。該加工部には、液体状のホットメルト接着剤を吐出するノズルが備えられており、該ノズル先端からホットメルト接着剤をトップシートに吐出することにより、ホットメルト接着剤の塗布が施される。 The top sheet to which the fastening tape is attached is conveyed on the top line 3 and reaches the adhesive application unit 10c. The adhesive application unit 10c is a device for applying a hot melt adhesive (hereinafter also referred to as an adhesive) to the top sheet at a product pitch, and has a processing unit for applying the hot melt adhesive. The processing unit is provided with a nozzle for discharging a liquid hot melt adhesive, and the hot melt adhesive is applied to the top sheet by discharging the hot melt adhesive from the tip of the nozzle onto the top sheet. .
　ホットメルト接着剤が塗布されたトップシートは、トップライン３を搬送されて、合流地点Ａに至る。 The top sheet coated with the hot melt adhesive is conveyed on the top line 3 and reaches the junction point A.
　吸収体ライン４においては、搬送される資材（吸収体）の搬送経路上に設けられた加工ユニット１０により各種加工が行われた吸収体が搬送されて合流地点Ａに至り、バックライン５においては、搬送される資材（バックシート）の搬送経路上に設けられた加工ユニット１０により各種加工が行われたバックシートが搬送されて合流地点Ａに至る。 In the absorber line 4, the absorbers subjected to various processing are conveyed by the processing unit 10 provided on the conveyance path of the material (absorbent) to be conveyed, and reach the junction point A, and in the back line 5 A back sheet subjected to various processing is conveyed by the processing unit 10 provided on the conveyance path of the material (back sheet) to be conveyed, and reaches the junction point A.
　そして、合流地点Ａでは、トップライン３を搬送されるトップシートと、バックライン５を搬送されるバックシートとが、吸収体ライン４を搬送される吸収体を挟み込むように合流して、トップシートとバックシートが接着剤等で接合されることにより、製品資材シートが生成される。 Then, at the junction point A, the top sheet conveyed on the top line 3 and the back sheet conveyed on the back line 5 join together so as to sandwich the absorber conveyed on the absorber line 4, and the top sheet The product material sheet is generated by bonding the back sheet to the back sheet with an adhesive or the like.
　合流地点Ａで生成された製品資材シートは、搬送機構により製品ライン２を搬送されて、ロータリーダイカッターユニット１０ｂに至る。ロータリーダイカッターユニット１０ｂは、製品ピッチで製品資材シートに回転体であるロータリーダイカッターを用いて吸収性物品の外形形状を形成する装置であり、搬送される製品資材シートを挟んで上下一対の回転体からなる加工部を有している。上部ロール１１Ｕには切断刃（上刃）が備えられており、下部ロール１１Ｌには上部ロール１１Ｕの切断刃を受けるアンビル（下刃）が備えられている。上部ロール１１Ｕの上刃と下部ロール１１Ｌの下刃は、上部ロール１１Ｕと下部ロール１１Ｌが対向する位置で協働して製品資材シートを切断加工することにより、製品資材シートに吸収性物品の外形形状を形成する。 The product material sheet generated at the joining point A is transported by the transport mechanism to the product line 2 and reaches the rotary die cutter unit 10b. The rotary die cutter unit 10b is an apparatus for forming the outer shape of an absorbent article using a rotary die cutter which is a rotating body on a product material sheet at a product pitch, and a pair of upper and lower rotations sandwiching the transported product material sheet It has a processing part which consists of a body. The upper roll 11U is equipped with a cutting blade (upper blade), and the lower roll 11L is equipped with an anvil (lower blade) that receives the cutting blade of the upper roll 11U. The upper blade of the upper roll 11U and the lower blade of the lower roll 11L cooperate with each other at the position where the upper roll 11U and the lower roll 11L face each other to cut and process the product material sheet, thereby forming the outer shape of the absorbent article on the product material sheet. Form a shape.
　吸収性物品の外形形状を形成した製品資材シートは、製品ライン２を搬送されて、エンド切断ユニット１０ａに至る。エンド切断ユニット１０ａは、製品資材シートに製品ピッチで連続して生成された吸収性物品を回転体であるエンドカッターで個々の吸収性物品に切り分ける装置であり、搬送される製品資材シートを挟んで上下一対の回転体からなる加工部を有している。上部ロール１１Ｕには上刃が備えられており、下部ロール１１Ｌには該上刃を受ける下刃が備えられている。上部ロール１１Ｕの上刃と下部ロール１１Ｌの下刃は、上部ロール１１Ｕと下部ロール１１Ｌが対向する位置で協働して製品資材シートの幅方向の一端から他端まで横断するように切断加工する。この切断加工により、製品資材シートに連続して生成された吸収性物品が個々の吸収性物品に切り分けられ、完成品の吸収性物品が製造される。 The product material sheet in which the outer shape of the absorbent article is formed is conveyed through the product line 2 and reaches the end cutting unit 10a. The end cutting unit 10a is a device for separating absorbent articles continuously generated on a product material sheet at a product pitch into individual absorbent articles by an end cutter which is a rotating body, and sandwiching the conveyed product material sheet It has a processing part which consists of a pair of upper and lower rotating bodies. The upper roll 11U is provided with an upper blade, and the lower roll 11L is provided with a lower blade for receiving the upper blade. The upper blade of the upper roll 11U and the lower blade of the lower roll 11L are cut so as to cross from one end of the product material sheet in the width direction to the other end in cooperation at the position where the upper roll 11U and the lower roll 11L face each other . By this cutting process, the absorbent articles continuously produced on the product material sheet are divided into individual absorbent articles, and a finished absorbent article is manufactured.
＜＜＜加工ユニット１０について＞＞＞
　図２は上下一対の回転体により加工を行う加工ユニット１０を示した概略図である。図２の左図は加工ユニット１０の正面概略図であり、図２の右図は加工ユニット１０の側面概略図である。 <<< About the processing unit 10 >>>
FIG. 2 is a schematic view showing a processing unit 10 for processing by a pair of upper and lower rotating bodies. The left view of FIG. 2 is a front schematic view of the processing unit 10, and the right view of FIG. 2 is a side schematic view of the processing unit 10.
　前述したとおり、エンド切断ユニット１０ａ、ロータリーダイカッターユニット１０ｂ、テープ貼付ユニット１０ｄ、エンボス加工ユニット１０ｅは、いずれも上下一対の回転体により加工を行う加工ユニット１０であり、図２のような構成を有している。以下、図２に示す上下一対の回転体により加工を行う加工ユニット１０を回転体加工ユニットとも呼ぶ。そして、図２を用いて回転体加工ユニットの構成を説明する（接着剤塗布ユニット１０ｃについては後述する）。 As described above, the end cutting unit 10a, the rotary die cutter unit 10b, the tape sticking unit 10d, and the embossing unit 10e are all processing units 10 that perform processing with a pair of upper and lower rotating bodies, and have the configuration shown in FIG. Have. Hereinafter, the processing unit 10 which performs processing by a pair of upper and lower rotating bodies shown in FIG. 2 is also referred to as a rotating body processing unit. Then, the configuration of the rotating body processing unit will be described using FIG. 2 (the adhesive application unit 10c will be described later).
　回転体加工ユニットは、上下一対の回転体である上部ロール１１Ｕと下部ロール１１Ｌの加工部を備えており、上部ロール１１Ｕと下部ロール１１Ｌの対向する対向位置Ｆを搬送される資材が通過する。そして、対向位置Ｆを資材が通過する際に、加工部が資材に対して加工を行う。 The rotating body processing unit includes a processing portion of an upper roll 11U and a lower roll 11L, which are a pair of upper and lower rotating bodies, and the material to be conveyed passes through opposing positions F where the upper roll 11U and the lower roll 11L face each other. Then, when the material passes through the facing position F, the processing unit processes the material.
　回転体加工ユニットの加工部（上部ロール１１Ｕ及び下部ロール１１Ｌ）は、鏡板２０の表側（図２の右図においては鏡板２０の左側）に設けられており、鏡板２０の表側に設けられたユニット架台１５の上に設置される。このユニット架台１５はそれぞれの回転体加工ユニットに応じて設けられており、鏡板２０の所定の位置に固定されている。そして、ユニット架台１５への回転体加工ユニットの加工部の設置は、回転体加工ユニットの交換部を設置することにより行われる。この交換部とは、後述する吸収性物品製造装置１の段替えにおいて、加工部と別の加工部とを交換するためのユニットを構成している部分であり、加工部と位置決め部を有している。そして、回転体加工ユニットの交換部の設置の際には、位置決め部による設置位置の位置決めが行われ、図２の左図に示すように、回転体加工ユニットの交換部下部に設けられた凹部１０ｎと、ユニット架台１５の回転体加工ユニット交換部設置面（交換部の底面と接する面）に設けられた凸部１５ａとが嵌め合わされる。 A processing unit (upper roll 11U and lower roll 11L) of the rotating body processing unit is provided on the front side of the end plate 20 (on the left side of the end plate 20 in the right view of FIG. 2), and a unit provided on the front side of the end plate 20. It is installed on the gantry 15. The unit mounts 15 are provided corresponding to the respective rotary body processing units, and are fixed at predetermined positions of the end plate 20. The installation of the processing unit of the rotating body processing unit on the unit mount frame 15 is performed by installing the replacement unit of the rotating body processing unit. The replacement portion is a portion constituting a unit for replacing the processing portion with another processing portion in the step change of the absorbent article manufacturing apparatus 1 described later, and has a processing portion and a positioning portion. ing. Then, at the time of installation of the replacement portion of the rotary body processing unit, positioning of the installation position is performed by the positioning portion, and as shown in the left view of FIG. 10n and the convex portion 15a provided on the rotational body processing unit replacement surface of the unit rack frame 15 (surface contacting the bottom surface of the replacement portion) are fitted.
　つまり、凹部１０ｎと凸部１５ａを嵌め合せることにより、回転体加工ユニットがユニット架台１５の所定の位置に設置されることとなり、それぞれの回転体加工ユニットは、吸収性物品製造装置１の資材搬送ラインの所定の位置に設けられることとなる。そのため、例えば、ある回転体加工ユニットの交換部（例えば、エンド切断ユニット１０ａ）を一度取り外してから再度取り付けた場合でも、取り外し前と取り付け後において他の回転体加工ユニット（例えば、ロータリーダイカッターユニット１０ｂ）との資材の搬送経路上の距離が等しくなる。 That is, by fitting the concave portion 10 n and the convex portion 15 a, the rotating body processing unit is installed at a predetermined position of the unit mount frame 15, and each rotating body processing unit transfers the material of the absorbent article manufacturing apparatus 1. It will be provided at a predetermined position of the line. Therefore, for example, even when a replacement part (for example, the end cutting unit 10a) of a certain rotary body processing unit is once removed and then reinstalled, another rotary body processing unit (for example, rotary die cutter unit before removal and after attachment) 10b) and the distance on the material transport route become equal.
　図２の右図に示すように、鏡板２０の裏側（図２の右図においては鏡板２０の右側）には動力源として駆動部３０が設けられている。駆動部３０は、１つの回転体加工ユニットに対して、１つずつ設けられている。本実施の形態に係る駆動部３０は、駆動回転するモータの一例としてのサーボモータであり、鏡板２０の裏側に固定されている。また、サーボモータはエンコーダーを有しており、該エンコーダーはサーボモータの回転角度を検出して、後述する制御部５０へ検出結果を送信する。エンコーダーの例としては、光学式や磁気式のエンコーダーが挙げられる。 As shown in the right view of FIG. 2, a drive unit 30 is provided on the back side of the end plate 20 (right side of the end plate 20 in the right view of FIG. 2) as a power source. The drive part 30 is provided 1 each with respect to one rotation body processing unit. The drive unit 30 according to the present embodiment is a servomotor as an example of a motor that is driven to rotate, and is fixed to the back side of the end plate 20. Further, the servomotor has an encoder, which detects the rotation angle of the servomotor and transmits the detection result to the control unit 50 described later. Examples of the encoder include an optical encoder and a magnetic encoder.
　駆動部３０の駆動軸３１には駆動歯車３２が備えられており、上部ロール歯車１３Ｕと噛み合っている。すなわち、駆動部３０が駆動回転すると、駆動歯車３２が駆動軸３１を介して回転し、上部ロール歯車１３Ｕを回転させる。 The drive shaft 31 of the drive unit 30 is provided with a drive gear 32 and meshes with the upper roll gear 13U. That is, when the drive unit 30 is driven to rotate, the drive gear 32 is rotated via the drive shaft 31 to rotate the upper roll gear 13U.
　上部ロール回転軸１２Ｕは、鏡板２０の裏側から表側まで貫通して備えられた不図示の支持部により回転自在に支持されており、一端側に上部ロール歯車１３Ｕが固定されて他端側に上部ロール１１Ｕが固定されている。すなわち、駆動部３０が駆動回転すると上部ロール歯車１３Ｕが回転し、上部ロール歯車１３Ｕが回転すると、上部ロール回転軸１２Ｕを介して上部ロール１１Ｕが回転する。 The upper roll rotary shaft 12U is rotatably supported by a support (not shown) provided so as to penetrate from the back side of the mirror plate 20 to the front side, and the upper roll gear 13U is fixed to one end side and the upper end to the other end side The roll 11U is fixed. That is, when the drive unit 30 is driven and rotated, the upper roll gear 13U is rotated, and when the upper roll gear 13U is rotated, the upper roll 11U is rotated via the upper roll rotation shaft 12U.
　下部ロール１１Ｌも上部ロール１１Ｕと同じ構成をしており、下部ロール歯車１３Ｌが回転すると、下部ロール回転軸１２Ｌを介して下部ロール１１Ｌが回転する。そして、下部ロール歯車１３Ｌは上部ロール歯車１３Ｕと、回転方向が反対になるように噛み合っている。すなわち、上部ロール歯車１３Ｕ（上部ロール１１Ｕ）が右回転をした場合には、下部ロール歯車１３Ｌ（下部ロール１１Ｌ）は左回転するように、互いの歯車が噛み合わされている。 The lower roll 11L also has the same configuration as the upper roll 11U, and when the lower roll gear 13L rotates, the lower roll 11L rotates via the lower roll rotation shaft 12L. The lower roll gear 13L meshes with the upper roll gear 13U so that the rotational direction is opposite. That is, when the upper roll gear 13U (upper roll 11U) rotates to the right, the lower roll gear 13L (lower roll 11L) is engaged with each other so that the lower roll gear 13L (the lower roll 11L) rotates to the left.
　また、一般的には上部ロール１１Ｕと下部ロール１１Ｌとが同じ回転速度で回転するように上部ロール歯車１３Ｕと下部ロール歯車１３Ｌとが噛み合わされており、本実施形態においても、そのように構成されている。例えば、上部ロール１１Ｕの上刃と下部ロール１１Ｌの下刃が対向位置Ｆにおいて資材の切断加工を実行してから、上部ロール１１Ｕが３６０度回転すると下部ロール１１Ｌも３６０度回転し、対向位置Ｆでは該上刃と該下刃が再度同じ切断加工をするように構成されている。 Also, in general, the upper roll gear 13U and the lower roll gear 13L are meshed so that the upper roll 11U and the lower roll 11L rotate at the same rotational speed, and in this embodiment as well, ing. For example, after the upper blade of the upper roll 11U and the lower blade of the lower roll 11L perform cutting processing of material at the facing position F, when the upper roll 11U rotates 360 degrees, the lower roll 11L also rotates 360 degrees, the facing position F In this case, the upper blade and the lower blade are configured to perform the same cutting process again.
　次に、接着剤塗布ユニット１０ｃの構成について説明する。接着剤塗布ユニット１０ｃは、鏡板２０の表側に設けられており、鏡板２０の所定の位置に固定されている。接着剤塗布ユニット１０ｃでは、トップシートとバックシートを接着するためのホットメルト接着剤をトップシートの接合面に塗布するため、該接合面がある側に設けられている。 Next, the configuration of the adhesive application unit 10c will be described. The adhesive application unit 10 c is provided on the front side of the mirror plate 20 and is fixed to a predetermined position of the mirror plate 20. In the adhesive application unit 10c, in order to apply a hot melt adhesive for bonding the top sheet and the back sheet to the joint surface of the top sheet, the adhesive application unit 10c is provided on the side where the joint surface is present.
　ホットメルト接着剤の塗布装置（加工部であるノズル）へのホットメルト接着剤の供給は、吸収性物品製造装置１に備えられた溶融タンクから行われる。溶融タンクはホットメルト接着剤を固体状から液体状に溶融し、該液体状のホットメルト接着剤を通過管を通じて、ホットメルト接着剤の塗布装置に供給する。そして、ホットメルト接着剤の塗布装置は、塗布装置がホットメルト接着剤を塗布する位置に資材の所定の加工位置（塗布位置）が搬送されてきたら、ノズルからのホットメルト接着剤の吐出を開始し、資材の所定の加工位置（塗布位置）にホットメルト接着剤を塗布する。 The supply of the hot melt adhesive to the hot melt adhesive application device (a nozzle which is a processing unit) is performed from a melting tank provided in the absorbent article manufacturing apparatus 1. The melting tank melts the hot melt adhesive from solid to liquid and supplies the liquid hot melt adhesive to the hot melt adhesive applicator through the passage pipe. Then, when the predetermined processing position (application position) of the material is conveyed to the position where the application device applies the hot melt adhesive, the hot melt adhesive application device starts discharging the hot melt adhesive from the nozzle. Apply the hot melt adhesive to a predetermined processing position (application position) of the material.
　また、エンド切断ユニット１０ａ乃至エンボス加工ユニット１０ｅは、各々の加工目的に応じた機能とその調整機能を備えている。例えば、エンボス加工ユニット１０ｅのエンボス加工を行う加工ユニット１０であれば、凹凸部を加熱する加熱部と加熱された凹凸部の温度を加熱部の加熱温度により調整する温度調整機能を備えている（温度調整工程に相当）。加えて、凹凸部（上部ロール１１Ｕと下部ロール１１Ｌ）を押さえつける加圧部と押さえつける加圧力を調整する圧力調整機能を備えている（加圧力調整工程に相当）。 In addition, the end cutting unit 10a to the embossing unit 10e have a function and an adjustment function corresponding to each processing purpose. For example, if it is processing unit 10 which performs embossing of embossing unit 10e, it has a temperature control function which adjusts temperature of a heating part which heats an uneven part, and a heated uneven part with heating temperature of a heating part ( Equivalent to temperature adjustment process). In addition, it has a pressure unit for pressing the uneven portion (upper roll 11U and lower roll 11L) and a pressure adjustment function for adjusting the pressing force (corresponding to the pressing force adjustment step).
＜＜＜加工ユニット１０の動作について＞＞＞
　次に、吸収性物品製造装置１の加工ユニット１０の動作について説明する。 <<< Operation of Machining Unit 10 >>
Next, the operation of the processing unit 10 of the absorbent article manufacturing apparatus 1 will be described.
　それぞれの加工ユニット１０は、完成した吸収性物品の所定の位置に所定の加工をする必要がある。すなわち、搬送される資材の所定の位置に所定の加工をする必要がある。所定の位置から外れた位置に加工が施されていると、完成した吸収性物品は不良品となり廃棄しなければならない。そのため、それぞれの加工ユニット１０の加工位置が資材の所定の位置になるように加工ユニット１０の動作を制御する必要がある。 Each processing unit 10 needs to perform predetermined processing at a predetermined position of the completed absorbent article. That is, it is necessary to perform predetermined processing at a predetermined position of the material to be transported. If processing is performed at a position deviated from the predetermined position, the completed absorbent article becomes defective and must be discarded. Therefore, it is necessary to control the operation of the processing unit 10 so that the processing position of each processing unit 10 becomes a predetermined position of the material.
　本実施の形態においては、加工ユニット１０の動作を制御するために吸収性物品製造装置１に１つの基準部が備えられている。該基準部は原点を有しており、それぞれの加工ユニット１０の動作の基準となる。つまり、それぞれの加工ユニット１０は、基準部の動作の開始（停止）と同時に動作を開始（停止）し、基準部の原点の動きを基準として連動する。加工ユニット１０には、加工角度が設定されており、加工角度は、基準部の原点が回転して加工角度に至ると該加工角度が設定された加工ユニット１０が搬送される資材の所定の位置に加工を行うように設定される。 In the present embodiment, in order to control the operation of the processing unit 10, the absorbent article manufacturing apparatus 1 is provided with one reference portion. The reference portion has an origin and serves as a reference of the operation of each processing unit 10. That is, each processing unit 10 starts (stops) the operation simultaneously with the start (stop) of the operation of the reference portion, and interlocks with the movement of the reference point of the reference portion as a reference. A processing angle is set in the processing unit 10. The processing angle is a predetermined position of the material to which the processing unit 10 having the processing angle set is conveyed when the origin of the reference portion is rotated and reaches the processing angle. Is set to perform processing.
　つまり、加工ユニット１０の加工角度は、それぞれの加工ユニット１０により異なり、その加工ユニット１０の加工部のどの位置が加工を施すか（例えば、加工部が回転体かつ切断装置であれば該回転体の回転軸まわりのどの位置にカッターを備えているか）、その加工ユニット１０が搬送される資材の搬送方向のどの位置に加工を行うか、その加工ユニット１０が搬送経路上のどの位置に設けられているか等の条件を考慮して設定される。すなわち、それぞれの加工ユニット１０には個々の加工角度が設定される。 That is, the processing angle of the processing unit 10 differs depending on each processing unit 10, and which position of the processing unit of the processing unit 10 is to be processed (for example, if the processing unit is a rotating body and a cutting device, the rotating body Of which position about the rotation axis of the cutting unit 10), which position in the conveying direction of the material to which the processing unit 10 is conveyed, the processing unit 10 is provided at which position on the conveyance path It is set in consideration of conditions such as That is, each processing unit 10 is set with an individual processing angle.
　そして、本実施の形態においては、それぞれの加工ユニット１０は基準部に対して次のように動作する。すなわち、それぞれの回転体加工ユニットの加工部は、基準部の原点が一回転すると同じように一回転し、基準部の原点が０度（基準部角度とも呼ぶ）に位置する際には、それぞれの回転体加工ユニットの加工部（回転体）も同じように０度（回転体角度とも呼ぶ）に位置することとする（つまり、回転体角度については、基準部の原点が０度に位置するときの加工部（回転体）の角度を０度と定義する）。そして、加工角度とは、基準部角度（回転体角度）がその角度になったときに、加工部が資材に対して加工を行う角度を意味する。例えば、加工角度が９０度に設定されたのであれば、基準部の原点と回転体が連動して回転して、基準部角度（回転体角度）が９０度となったときに、加工部が資材に対して加工を行う。 And in this embodiment, each processing unit 10 operates as follows to a standard part. That is, when the origin of the reference part makes one rotation, the processing part of each rotary body processing unit makes one rotation, and when the origin of the reference part is located at 0 degree (also called the reference part angle), Similarly, the processing part (rotating body) of the rotating body processing unit is positioned at 0 degree (also referred to as a rotating body angle) (that is, for the rotating body angle, the origin of the reference part is positioned at 0 degree) Define the angle of the machined part (rotational body) at the time of 0 degrees). And a processing angle means the angle which a processing part processes with respect to material, when a reference part angle (rotation body angle) turns into that angle. For example, if the processing angle is set to 90 degrees, when the origin of the reference portion and the rotating body are interlocked to rotate and the reference portion angle (rotational body angle) becomes 90 degrees, the processing portion Process the materials.
　また、基準部の原点が０度の位置が製品ピッチの一端に対応することとし、基準部の原点が一回転した３６０度の位置が製品ピッチの他端に対応することとする。つまり、資材に連続して生成される吸収性物品に対して、吸収性物品の搬送方向下流側の一端を０度とし、上流側の他端を３６０度（搬送方向上流側の次の吸収性物品の一端であり０度）とする（回転体加工ユニットではない接着剤塗布ユニット１０ｃについては後述する）。 Further, the position where the origin of the reference portion is 0 degree corresponds to one end of the product pitch, and the position where the origin of the reference portion rotates 360 degrees corresponds to the other end of the product pitch. That is, one end of the absorbent article on the downstream side in the transport direction of the absorbent article formed continuously to the material is at 0 °, and the other end on the upstream side is at 360 ° (the next absorbent property on the upstream side in the transport direction The adhesive application unit 10c which is one end of the article and is 0 degree) (the adhesive application unit 10c which is not the rotating body processing unit will be described later).
　本実施の形態においては、基準部をエンド切断ユニット１０ａの駆動部３０としており、基準部の原点を該駆動部３０の駆動軸３１（駆動歯車３２）の回転角度０度の位置に設定する。つまり、所定回転軸回り（エンド切断ユニット１０ａの駆動軸３１）の回転基準位置（基準部の原点位置）を設定する（基準設定工程に相当）。そして、基準部の原点を基準として、それぞれの加工ユニット１０の加工角度が設定される。ここでは、エンド切断ユニット１０ａの加工角度が０度、ロータリーダイカッターユニット１０ｂの加工角度が３０度、テープ貼付ユニット１０ｄの加工角度が６０度、エンボス加工ユニット１０ｅの加工角度が９０度に、それぞれ設定されることとして、後の説明を行う。 In the present embodiment, the reference portion is the drive portion 30 of the end cutting unit 10a, and the origin of the reference portion is set to a position where the rotation angle of the drive shaft 31 (drive gear 32) of the drive portion 30 is 0 degree. That is, the rotation reference position (the origin position of the reference portion) about the predetermined rotation axis (the drive shaft 31 of the end cutting unit 10a) is set (corresponding to the reference setting step). And the processing angle of each processing unit 10 is set on the basis of the origin of a reference | standard part. Here, the processing angle of the end cutting unit 10a is 0 degrees, the processing angle of the rotary die cutter unit 10b is 30 degrees, the processing angle of the tape sticking unit 10d is 60 degrees, and the processing angle of the embossing unit 10e is 90 degrees. The following explanation will be given as being set.
　また、回転体加工ユニットの加工部は、それぞれの回転体加工ユニットの駆動部３０を駆動源として回転する。そして、駆動部３０のモータはエンコーダーを有しており、その回転角度を後述する制御部５０が検知することにより、制御部５０は回転体加工ユニットの加工部の回転角度（前記回転体角度）を認識している。つまり、制御部５０は、駆動部３０の回転角度を介して回転体加工ユニットの回転角度を認識している。そのため、それぞれの回転体加工ユニットの加工角度に対応する回転角度（回転位置）がそれぞれの駆動部３０に存在する。 Further, the processing unit of the rotary body processing unit rotates with the drive unit 30 of each rotary body processing unit as a drive source. The motor of the drive unit 30 has an encoder, and the control unit 50 detects the rotation angle of the motor, and the control unit 50 detects the rotation angle of the processing unit of the rotating body processing unit (the rotating body angle). Are aware of. That is, the control unit 50 recognizes the rotation angle of the rotating body processing unit via the rotation angle of the drive unit 30. Therefore, the rotation angle (rotational position) corresponding to the processing angle of each rotary body processing unit exists in each drive part 30. FIG.
　つまり、搬送方向における第１位置（例えば、ロータリーダイカッターユニット１０ｂが位置する位置）において、第１モータにより第１回転軸回りに回転する第１加工部を用いて、回転基準位置（基準部角度が０度の位置）から所定回転軸回りに第１回転角度（加工角度であり上記例では３０度）だけ回転した第１角度位置に対応する第１モータの回転位置にて、資材に第１加工を行い（第１加工工程に相当）、搬送方向における第２位置（例えば、エンボス加工ユニット１０ｅが位置する位置）において、第２モータにより第２回転軸回りに回転する第２加工部を用いて、回転基準位置から所定回転軸回りに第２回転角度（上記例では９０度）だけ回転した第２角度位置に対応する第２モータの回転位置にて、資材に第２加工を行う（第２加工工程に相当）。 That is, at the first position in the transport direction (for example, the position where the rotary die cutter unit 10b is located), using the first processing unit rotated about the first rotation axis by the first motor, the rotation reference position (reference unit angle Is the first angular position corresponding to the first angular position rotated by a first rotational angle (the processing angle, which is 30 degrees in the above example) about a predetermined rotational axis from the position of 0 °) A second processing unit is used which is processed (corresponding to a first processing step) and rotated about a second rotation axis by a second motor at a second position (for example, a position where the embossing unit 10e is located) in the transport direction. The second processing is performed on the material at the rotational position of the second motor corresponding to the second angular position rotated by the second rotational angle (90 degrees in the above example) around the predetermined rotational axis from the rotational reference position It corresponds to 2 processing step).
　接着剤塗布ユニット１０ｃは、上記の回転体加工ユニットのように回転体を有していないが、基準部の原点の回転角度を製品ピッチに割り当てて、加工位置を回転角度に変換することにより、上記と同じように制御することが可能である。前述したように、資材に連続して生成される吸収性物品の搬送方向下流側の一端が基準部の原点の０度に対応し、上流側の他端が基準部の原点の３６０度に対応する。そして、資材の所定の位置にホットメルト接着剤が塗布されるようにノズルがホットメルト接着剤を吐出するタイミングを基準部の原点の０度から３６０度までの回転角度に変換して、変換した該回転角度を接着剤塗布ユニット１０ｃの加工角度とする。このようにすると、基準部の原点の回転角度とノズルからホットメルト接着剤を吐出するタイミングを関連付ける（加工角度とする）ことができるため、接着剤塗布ユニット１０ｃの動作（例えば、ノズルの弁の開閉）を上記回転体加工ユニットと同じように基準部の動作に基づいて制御することが可能となる。 Although the adhesive application unit 10c does not have a rotating body like the above-described rotating body processing unit, by assigning the rotation angle of the origin of the reference portion to the product pitch, and converting the processing position into the rotation angle, It is possible to control as above. As described above, one end on the downstream side in the conveyance direction of the absorbent article continuously generated on the material corresponds to 0 degree of the origin of the reference portion, and the other end on the upstream side corresponds to 360 degrees of the origin of the reference portion Do. Then, the timing at which the nozzle discharges the hot melt adhesive is converted into a rotation angle from 0 degrees to 360 degrees of the origin of the reference portion so that the hot melt adhesive is applied to the predetermined position of the material, and converted. The rotation angle is taken as the processing angle of the adhesive application unit 10c. In this way, it is possible to associate the rotation angle of the origin of the reference portion with the timing at which the hot melt adhesive is discharged from the nozzle (set it as the processing angle), so the operation of the adhesive application unit 10c (for example, the valve of the nozzle It becomes possible to control the opening and closing) based on the operation of the reference portion in the same manner as the above-mentioned rotating body processing unit.
　つまり、搬送方向における第３位置（接着剤塗布ユニット１０ｃが位置する位置）において、第３加工部（ノズル）用いて、回転基準位置から所定回転軸回りに第３回転角度（接着剤塗布ユニット１０ｃの加工角度）だけ回転したタイミングにて、接着剤を資材に塗布する（第３加工工程に相当）。 That is, at the third position (position where the adhesive application unit 10c is located) in the transport direction, the third rotation angle (adhesive application unit 10c) around the predetermined rotation axis from the rotation reference position using the third processing unit (nozzle) The adhesive is applied to the material at a timing rotated by the processing angle of (the third processing step).
　ここまでは加工ユニット１０の動作として、それぞれの加工ユニット１０が基準部の動きに基づいて動作することを説明したが、以下では、搬送される資材の伸長状態等の変化に対して個々の加工ユニット１０の加工位置を個々に調整することにより、搬送される資材の所定の位置に加工を行う動作の制御について説明する。 Up to this point, it has been described that each processing unit 10 operates based on the movement of the reference portion as the operation of the processing unit 10, but in the following, individual processing is performed with respect to changes in the extension state etc. The control of the operation of processing the material to be transported to a predetermined position by adjusting the processing position of the unit 10 individually will be described.
　本実施の形態においては、搬送される資材はシート状であるため、資材が支持されていない場所（例えば、加工ユニット１０と加工ユニット１０の間）では、資材が容易に資材の厚み方向へ撓んでしまう。そして、搬送される資材が撓んでしまうと、加工ユニット１０を資材が通過する際に、幅方向の所定の通過位置から外れたり、資材にしわが生じてしまう可能性がある。つまり、加工不良の原因となり得る。そのため、資材を搬送する搬送機構は、吸収性物品に係る資材を、張力を付与した状態で搬送方向に沿って搬送する（搬送工程に相当）。そして、本実施の形態においては、テンション調整装置（図３参照）を用いて資材に前記張力を付与している。つまり、吸収性物品に係る資材に付与する張力を調整する調整機能を有している（張力調整工程に相当）。 In the present embodiment, since the material to be conveyed is in the form of a sheet, the material is easily bent in the thickness direction of the material in a place where the material is not supported (for example, between the processing unit 10 and the processing unit 10). I'm sorry. Then, if the material to be conveyed is bent, when the material passes through the processing unit 10, it may deviate from a predetermined passing position in the width direction, or the material may be wrinkled. That is, it may cause processing defects. Therefore, the transport mechanism that transports the material transports the material relating to the absorbent article along the transport direction with tension applied (corresponding to the transport process). And in this embodiment, the above-mentioned tension is given to materials using a tension adjustment device (refer to Drawing 3). That is, it has the adjustment function which adjusts the tension given to the material which concerns on an absorptive article (equivalent to a tension adjustment process).
　吸収性物品に係るシート状の資材は、不織布等の伸長性を有した素材により構成されている。そのため、資材に張力を付与した状態で搬送すると、資材は常に伸長した状態で搬送されることとなる。テンション調整装置は、資材の伸長状態が一定になるように、一定の張力を付与しているが、シート状の資材の厚みや幅には一定のばらつきがあり、該ばらつきにより資材の伸長状態が変化する。また、吸収性物品製造装置１の周辺環境や資材を保管していた場所の温度や湿度等の環境によっても、資材に含まれる水分量等の影響により資材の伸長状態が変化する。また、資材（トップシート）が資材ロールより繰り出されて搬送されることは前述したが、この資材ロールは資材シートを運搬するために生成されたものであり、一般的には軸心部に一定の回転速度で資材シートを巻き付けることにより生成される。そのため、軸心部から半径方向に近い資材シートと遠い資材シートで巻き付けられた際に受けた張力が異なり、資材の伸長状態が異なっている。すなわち、搬送される資材の伸長状態は、吸収性物品を製造している間にも時々刻々と変化する。したがって、加工ユニット１０の加工位置を資材の伸長状態に合わせた所定の位置になるように、加工ユニット１０の動作を制御する必要がある。 The sheet-like material according to the absorbent article is made of a stretchable material such as non-woven fabric. Therefore, if the material is conveyed in a tensioned state, the material is always conveyed in a stretched state. The tension adjustment device applies a constant tension so that the expansion state of the material is constant, but the thickness and the width of the sheet-like material have a certain dispersion, and the dispersion state of the material is caused by the dispersion. Change. Also, depending on the surrounding environment of the absorbent article manufacturing apparatus 1 and the environment such as temperature and humidity of the place where the material is stored, the expansion state of the material changes due to the influence of the amount of water and the like contained in the material. Also, as described above, the material (top sheet) is fed out and conveyed from the material roll, but this material roll is generated to convey the material sheet, and generally it is fixed at the axial center It is produced by winding a sheet of material at a rotational speed of. Therefore, the tension received when being wound by the sheet of material close to the radial direction from the axial center portion is different from that of the sheet of material and the state of elongation of the material is different. That is, the extension state of the material to be transported changes momentarily while manufacturing the absorbent article. Therefore, it is necessary to control the operation of the processing unit 10 so that the processing position of the processing unit 10 becomes a predetermined position in accordance with the extension state of the material.
　本実施の形態に係る吸収性物品製造装置１には、前記の動作の制御を行うために加工位置検出部４０と制御部５０が備えられている。図３は、制御部５０と他の装置の関係を示した図である。 The absorbent article manufacturing apparatus 1 according to the present embodiment is provided with a processing position detection unit 40 and a control unit 50 in order to control the operation described above. FIG. 3 is a diagram showing the relationship between the control unit 50 and other devices.
　加工位置検出部４０は、搬送される資材に加工された各種加工の加工位置を検出する装置であり、資材の搬送経路に沿って設けられている。例えば、エンボス加工の加工範囲を検出する装置や、ファスニングテープの貼付位置を検出する装置である。それぞれの加工位置検出部４０は、各種加工位置を検出して該検出結果を制御部５０に送信する。加工位置検出部４０の例としては、撮像装置や光電管が挙げられる。 The processing position detection unit 40 is a device that detects processing positions of various types of processing processed into the material to be conveyed, and is provided along the material conveyance path. For example, it is an apparatus which detects the processing range of embossing, and an apparatus which detects the sticking position of a fastening tape. Each processing position detection unit 40 detects various processing positions and transmits the detection result to the control unit 50. Examples of the processing position detection unit 40 include an imaging device and a photoelectric tube.
　制御部５０は、分析部５１と記憶部５２を有しており、加工位置検出部４０、駆動部３０（詳しくは、駆動部３０が有しているエンコーダー）等から送信される資材の加工位置や駆動軸３１の回転角度等の情報を受信する。そして、受信した情報や記憶部５２に記憶している情報を分析部５１で分析して加工位置のずれ量を演算する。そして、該ずれ量が所定の閾値を超えている場合には、その加工を行っている加工ユニット１０の加工のタイミングを調整する。 The control unit 50 includes an analysis unit 51 and a storage unit 52, and the processing position of the material transmitted from the processing position detection unit 40, the drive unit 30 (more specifically, the encoder included in the drive unit 30), etc. Information such as the rotation angle of the drive shaft 31 is received. Then, the analysis unit 51 analyzes the received information and the information stored in the storage unit 52 to calculate the displacement amount of the processing position. Then, when the deviation amount exceeds the predetermined threshold, the timing of the processing of the processing unit 10 which is performing the processing is adjusted.
　加工位置検出部４０が撮像装置の場合を一例として挙げると、該加工位置検出部４０は、対応する加工の加工位置の画像を製品ピッチで（基準部と同期して）撮影して制御部５０に送信する。制御部５０には、該加工位置検出部４０が対応する加工の基準加工位置が示された画像（例えば、ある加工位置（基準位置）に対して該加工がなされるべき加工位置が示された画像）が記憶部５２に記憶されており、分析部５１が該基準加工位置の画像を記憶部５２から読み出して、送信されてきた画像の加工位置と比較する。そして、対象となる加工部分の基準加工位置からの加工位置のずれ量を演算する。それぞれの加工の加工位置には、基準加工位置とのずれ量の閾値が設定されており、このずれ量が閾値を超えるような場合には、制御部５０が該加工ユニット１０（回転体加工ユニット）の駆動部３０の回転速度を調整する。 Taking the case where the processing position detection unit 40 is an imaging device as an example, the processing position detection unit 40 captures an image of the processing position of the corresponding processing at a product pitch (in synchronization with the reference unit) and controls the control unit 50. Send to The control unit 50 displays an image (for example, a processing position where the processing should be performed with respect to a certain processing position (reference position)) in which a reference processing position of processing corresponding to the processing position detection unit 40 is shown The image) is stored in the storage unit 52, and the analysis unit 51 reads the image of the reference processing position from the storage unit 52 and compares it with the processing position of the transmitted image. Then, the deviation amount of the processing position from the reference processing position of the target processing portion is calculated. A threshold value of the amount of deviation from the reference processing position is set at the processing position of each processing, and when the amount of deviation exceeds the threshold, the control unit 50 executes the processing unit 10 (rotation body processing unit The rotation speed of the drive unit 30 of.
　この回転体加工ユニットの駆動部３０の回転速度の調整は、ずれ量が閾値を超えた回転体加工ユニットに設定された加工角度を調整（再設定）するために行われる。例えば、回転体加工ユニットの加工のタイミングが遅いためにずれ量が閾値を超えた場合には、基準部の原点と該回転体加工ユニットの加工角度との位相差が小さくなるように加工角度を再設定する。このようにすれば、該回転体加工ユニットの加工のタイミングのみを早めることができる。具体的には、ずれ量が閾値より小さくなるまで、該回転体加工ユニットの駆動部３０の回転速度（上部ロール１１Ｕ及び下部ロール１１Ｌの回転速度）を一時的に速くする（加工のタイミングが早いためにずれ量が閾値を超えた場合は一時的に遅くする）。そして、ずれ量が閾値内に入れば、一時的に速くした（遅くした）回転速度を元の回転速度に戻す、という調整がなされ、結果として、加工角度が再設定される。 The adjustment of the rotational speed of the drive unit 30 of the rotating body processing unit is performed to adjust (reset) the processing angle set in the rotating body processing unit whose displacement amount exceeds the threshold. For example, when the displacement amount exceeds the threshold value because the processing timing of the rotary body processing unit is late, the processing angle is set so that the phase difference between the reference point origin and the processing angle of the rotary body processing unit becomes small. Reset. In this way, only the processing timing of the rotary body processing unit can be advanced. Specifically, the rotational speed (rotational speeds of the upper roll 11U and the lower roll 11L) of the drive unit 30 of the rotating body processing unit is temporarily increased (the processing timing is earlier) until the deviation amount becomes smaller than the threshold value. If the deviation amount exceeds the threshold, it will be temporarily delayed). Then, if the deviation amount falls within the threshold value, adjustment is made such that the temporarily increased (reduced) rotational speed is returned to the original rotational speed, and as a result, the processing angle is reset.
　つまり、張力が解除された資材（すなわち、完成品の吸収性物品）において、第１加工（例えば、ロータリーダイカッターユニット１０ｂの加工）が施された部位と第２加工（例えば、エンボス加工ユニット１０ｅの加工）が施された部位とが所定の位置関係となるように、第２角度位置（例えば、エンボス加工ユニット１０ｅの加工角度）を調整する（角度調整工程に相当）。 That is, in the material in which the tension is released (that is, the absorbent article of the finished product), the portion where the first processing (for example, processing of the rotary die cutter unit 10b) is performed and the second processing (for example, the embossing unit 10e) The second angular position (e.g., the processing angle of the embossing unit 10e) is adjusted (corresponding to the angle adjustment step) so that the part subjected to the processing in (a) has a predetermined positional relationship.
　接着剤塗布ユニット１０ｃの加工角度の再設定については、接着剤を吐出するタイミングを調整する。すなわち、加工角度を再設定して、ノズル弁の開閉のタイミングを調整する。つまり、張力が解除された資材において、第１加工（例えば、ロータリーダイカッターユニット１０ｂの加工）が施された部位と接着剤が塗布された部位（接着剤塗布ユニット１０ｃの塗布（加工）位置）とが所定の位置関係となるように、第３角度位置（接着剤塗布ユニット１０ｃの加工角度）を調整する（他の角度調整工程に相当）。 Regarding resetting of the processing angle of the adhesive application unit 10c, the timing of discharging the adhesive is adjusted. That is, the processing angle is reset, and the timing of opening and closing the nozzle valve is adjusted. That is, in the material in which the tension is released, a portion to which the first processing (for example, processing of the rotary die cutter unit 10b) is applied and a portion to which the adhesive is applied (application (processing) position of the adhesive application unit 10c) The third angle position (the processing angle of the adhesive application unit 10c) is adjusted (corresponding to another angle adjustment step) such that the position relationship of
　本実施の形態においては、角度調整工程において調整されたそれぞれの加工ユニット１０の加工角度（再設定された加工角度）を記憶部５２に記憶する。つまり、角度調整工程の後に第１角度位置（例えば、ロータリーダイカッターユニット１０ｂの加工角度）と調整後の第２角度位置（例えば、再設定されたエンボス加工ユニット１０ｅの加工角度）との相対角度を特定可能な情報（例えば、双方の加工角度）を記憶する（記憶工程に相当）。接着剤塗布ユニット１０ｃの場合であれば、第１角度位置（例えば、ロータリーダイカッターユニット１０ｂの加工角度）と調整後の第３角度位置（再設定された接着剤塗布ユニット１０ｃの加工角度）との相対角度を特定可能な情報（例えば、双方の加工角度）を記憶する（記憶工程に相当）。 In the present embodiment, the processing angle (reset processing angle) of each processing unit 10 adjusted in the angle adjustment step is stored in the storage unit 52. That is, the relative angle between the first angle position (for example, the processing angle of the rotary die cutter unit 10b) and the second angle position after adjustment (for example, the processing angle of the reset emboss unit 10e) after the angle adjustment process. Information (for example, both processing angles) that can be identified is stored (corresponding to a storage step). In the case of the adhesive application unit 10c, the first angle position (for example, the processing angle of the rotary die cutter unit 10b) and the third angle position after adjustment (the processing angle of the reset adhesive application unit 10c) The information (for example, both processing angles) which can specify the relative angle of is stored (equivalent to a storage process).
　また、前述したとおり、エンド切断ユニット１０ａ乃至エンボス加工ユニット１０ｅは、各々の加工目的に応じた機能とその調整機能を備えている。例えば、エンボス加工ユニット１０ｅのエンボス加工を行う加工ユニットであれば、温度調整工程と加圧力調整工程を実行する調整機能（装置）を備えている。そして、本実施の形態においては、これらの調整機能により調整された加熱温度や加圧力等もそれぞれの加工ユニット１０の加熱温度や加圧力等として記憶部５２に記憶する（記憶工程に相当）。 Further, as described above, the end cutting unit 10a to the embossing unit 10e have the function and the adjustment function according to the processing purpose of each. For example, if it is a processing unit which performs embossing of the embossing unit 10e, it is equipped with the adjustment function (apparatus) which performs a temperature control process and a pressure adjustment process. Further, in the present embodiment, the heating temperature, the pressing force, and the like adjusted by the adjusting function are also stored in the storage unit 52 as the heating temperature, the pressing force, and the like of each processing unit 10 (corresponding to a storage step).
　そして、以下で説明する吸収性物品製造装置１の段替えの際に、この記憶部５２に記憶した加工角度等の情報を用いて段替えする。 Then, at the time of stage change of the absorbent article manufacturing apparatus 1 described below, the stage change is performed using the information such as the processing angle stored in the storage unit 52.
＜＜＜吸収性物品製造装置１の段替えについて＞＞＞
　次に、吸収性物品製造装置１の段替えについて説明する。吸収性物品製造装置１の段替えとは、吸収性物品製造装置１で製造する吸収性物品の製品の仕様を変更することである。製品の仕様とは、製品の寸法、形状等のことであり、製品の仕様の変更とは、例えば、寸法であればＭサイズからＬサイズに変更する場合であり、形状であれば生理用ナプキンを羽根つきから羽根なしに変更する場合や、エンボス加工のパターン形状を変更する場合である。吸収性物品の製造においては、１日毎や１日の交代勤務の交代毎に（つまり、頻繁に）製造する吸収性物品の製品の仕様を変更することがあり、その度に吸収性物品製造装置１の段替えが行われる。 <<< About change of absorbent article manufacturing device 1 >>>
Next, the change of the absorbent article manufacturing apparatus 1 will be described. The change of the absorbent article manufacturing apparatus 1 is to change the specification of the product of the absorbent article manufactured by the absorbent article manufacturing apparatus 1. Product specifications are product dimensions, shapes, etc. Changes in product specifications are, for example, the case of changing from size M to size L if size, and sanitary napkin if it is shape When changing from a winged to a wingless, or when changing the pattern shape of embossing. In the production of absorbent articles, the specifications of the product of absorbent articles to be produced may be changed every day or every change of shift work (that is, frequently), and the apparatus for producing absorbent articles each time. A change of 1 is performed.
　本実施の形態に係る吸収性物品製造装置１の段替えでは、吸収性物品に係る資材や各種加工を行う加工部を変更される仕様に合わせて交換するため、一部を交換することもあれば、全てを交換することもある。また、加工部の交換においては、加工ユニット１０の交換部を取り外して、別の加工ユニット１０の交換部を取り付ける。そのため、段替えのために交換された交換前後の加工ユニット１０の交換部は、同じような構成をしている。 In the step change of the absorbent article manufacturing apparatus 1 according to the present embodiment, a part of the material relating to the absorbent article and the processing unit for performing various processing may be replaced in order to be replaced according to the specifications to be changed. For example, we may exchange everything. Moreover, in replacement | exchange of a process part, the exchange part of the process unit 10 is removed and the exchange part of another process unit 10 is attached. Therefore, the replacement part of the processing unit 10 before and after the replacement | exchanged for the level change has the same structure.
　また、吸収性物品製造装置１においては、同じ製品の仕様による吸収性物品の製造が間欠的に繰り返して行われる。つまり、ある吸収性物品を製造した後に、他の吸収性物品を製造してから再度ある吸収性物品を製造するように、吸収性物品の製品の仕様に合わせて間欠的に繰り返し段替えが行われる。すなわち、ある製品から他の製品を挟んで元の製品の仕様に戻す段替えが行われる。以下では、この戻す段替えについて説明する。 Moreover, in the absorbent article manufacturing apparatus 1, manufacture of the absorbent article by the specification of the same product is intermittently performed repeatedly. That is, after production of one absorbent article, the production of another absorbent article and then production of another absorbent article are repeated intermittently and repeatedly according to the specifications of the product of the absorbent article. It will be. That is, a change is made to restore the original product specifications from one product to another. In the following, this change back will be described.
＜元の製品の仕様に戻す段替えについて＞
　本実施の形態においては、元の製品の仕様に戻す段替えとして、上記で説明したエンド切断ユニット１０ａ乃至エンボス加工ユニット１０ｅを用いてある吸収性物品を製造し、エンド切断ユニット１０ａ乃至エンボス加工ユニット１０ｅのうちのロータリーダイカッターユニット１０ｂの交換部とエンボス加工ユニット１０ｅの交換部をそれぞれ別の加工ユニット１０（回転体加工ユニット）の交換部に交換して、他の吸収性物品を製造する段替えを行い、他の吸収性物品を製造した後に、それぞれの別の加工ユニット１０の交換部をロータリーダイカッターユニット１０ｂとエンボス加工ユニット１０ｅの交換部に交換して、前記ある吸収性物品の製造に戻す段替えを行う。 <About the change back to the original product specifications>
In the present embodiment, an absorbent article is manufactured using the end cutting unit 10a to the embossing unit 10e described above as a step for returning to the original product specifications, and the end cutting unit 10a to the embossing unit Step of manufacturing another absorbent article by replacing the replacement part of the rotary die cutter unit 10b and the replacement part of the embossing unit 10e in 10e with replacement parts of different processing units 10 (rotary body processing unit) Replacement, and after the production of another absorbent article, the replacement part of each separate processing unit 10 is replaced with the replacement part of the rotary die cutter unit 10b and the embossing unit 10e to produce the above absorbent article Make a change back to.
　図４は、上下一対の回転体により加工を行う加工ユニット１０の交換部を鏡板２０から取り外した図である。ここでは、戻し段替えについて説明するため、他の吸収性物品を製造するための別の回転体加工ユニットの交換部を取り外した図となる。図４に示すように、戻し段替えのため別の回転体加工ユニットの交換部を取り外す際には、回転体加工ユニットの加工部である上部ロール１１Ｕ及び下部ロール１１Ｌと共に、上部ロール回転軸１２Ｕ及び下部ロール回転軸１２Ｌと、上部ロール歯車１３Ｕ及び下部ロール歯車１３Ｌを取り外す。つまり、駆動歯車３２と上部ロール歯車１３Ｕの噛み合いを解除して、回転体加工ユニットの交換部を取り外す。このような取り外し方法であれば、鏡板２０の所定の位置に固定された駆動部３０を交換しなくてよいため、段替えにより加工ユニット１０の加工部が交換されても、該加工ユニット１０の駆動部３０のエンコーダーを通電したままの状態とすることができる（サーボモータ自体は誤動作防止等のため非通電でもよい）。 FIG. 4 is a diagram in which the replacement portion of the processing unit 10 that performs processing by a pair of upper and lower rotating bodies is removed from the end plate 20. Here, in order to explain return stage change, it becomes a figure which removed the exchange part of another rotating body processing unit for manufacturing other absorptive articles. As shown in FIG. 4, when removing the replacement portion of another rotating body processing unit for stage change, the upper roll rotation shaft 12U is combined with the upper roll 11U and the lower roll 11L which are the processing portions of the rotating body processing unit. The lower roll rotary shaft 12L, the upper roll gear 13U and the lower roll gear 13L are removed. That is, the engagement between the drive gear 32 and the upper roll gear 13U is released, and the replacement portion of the rotating body processing unit is removed. With such a removal method, it is not necessary to replace the drive unit 30 fixed at a predetermined position of the mirror plate 20. Therefore, even if the processing unit of the processing unit 10 is replaced due to stage change, the processing unit 10 The encoder of the drive unit 30 can be kept energized (the servo motor itself may be de-energized to prevent malfunction etc.).
　次に、ロータリーダイカッターユニット１０ｂとエンボス加工ユニット１０ｅの交換部を別の回転体加工ユニットの交換部が設置されていた位置に取り付ける。前述したとおり、交換前後の回転体加工ユニットの交換部はそれぞれ同じような構成をしている。すなわち、ロータリーダイカッターユニット１０ｂとエンボス加工ユニット１０ｅの交換部は、加工部と共に、上部ロール回転軸１２Ｕ及び下部ロール回転軸１２Ｌ、上部ロール歯車１３Ｕ及び下部ロール歯車１３Ｌを有している。また、前述したように、ロータリーダイカッターユニット１０ｂとエンボス加工ユニット１０ｅの交換部下部には凹部１０ｎが設けられている。したがって、該凹部１０ｎとユニット架台１５の凸部１５ａとで搬送経路上の位置決めを行い、上部ロール歯車１３Ｕと駆動歯車３２とを噛み合わせて取り付けることにより、ロータリーダイカッターユニット１０ｂとエンボス加工ユニット１０ｅの交換部を交換することができる。 Next, the exchange part of the rotary die cutter unit 10b and the embossing unit 10e is attached to the position where the exchange part of another rotating body processing unit was installed. As described above, the replacement parts of the rotating body processing unit before and after replacement have the same configuration. That is, the exchange part of the rotary die cutter unit 10b and the embossing unit 10e has an upper roll rotary shaft 12U, a lower roll rotary shaft 12L, an upper roll gear 13U and a lower roll gear 13L as well as a processing portion. Further, as described above, the recessed portion 10 n is provided in the lower portion of the replacement portion of the rotary die cutter unit 10 b and the embossing unit 10 e. Therefore, the rotary die cutter unit 10b and the embossing unit 10e are positioned by engaging the upper roll gear 13U and the drive gear 32 with each other for positioning on the conveyance path by the concave portion 10n and the convex portion 15a of the unit mount frame 15. The exchange part of can be exchanged.
　そして、ロータリーダイカッターユニット１０ｂとエンボス加工ユニット１０ｅは前回（それぞれ別の加工ユニット１０に交換される前）のある吸収性物品の製造において、それぞれの加工角度が角度調整工程により調整され、この調整された（再設定された）それぞれの加工角度が記憶部５２に記憶されている。本実施の形態においては、これらの記憶部５２に記憶されているそれぞれの加工角度を用いて、ロータリーダイカッターユニット１０ｂとエンボス加工ユニット１０ｅを前回ある吸収性物品の製造をしていた状態に戻す段替えを行う。更に、交換した加工ユニット１０だけではなく、吸収性物品製造装置１のそれぞれの加工ユニット１０（交換されていない加工ユニット１０）に対しても、この記憶部５２に記憶されたそれぞれの加工ユニット１０の加工角度を用いて前回ある吸収性物品を製造していた状態に戻す。 And in manufacture of an absorbent article with the rotary die cutter unit 10b and the embossing unit 10e of the last time (before being replaced with each another processing unit 10), each processing angle is adjusted by an angle adjustment process, and this adjustment is carried out The processed (re-set) processing angles are stored in the storage unit 52. In the present embodiment, rotary die cutter unit 10b and embossing unit 10e are returned to the state in which the absorbent article was previously manufactured using the processing angles stored in storage unit 52. Make a change. Furthermore, each processing unit 10 stored in the storage unit 52 not only for the processing unit 10 that has been replaced but also for each processing unit 10 of the absorbent article manufacturing apparatus 1 (the processing unit 10 that is not replaced). The processing angle of is used to restore the previous absorbent article to its manufactured state.
　つまり、ある吸収性物品を製造した後に、他の吸収性物品を製造し、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記情報（記憶部５２に記憶された加工角度）を用いて、第２角度位置（例えば、エンボス加工ユニット１０ｅの加工角度）を設定する。本実施の形態に係る戻し段替えとは、それぞれの加工ユニット１０が前回ある吸収性物品を製造していた状態に戻る段替えをいう。 That is, after manufacturing an absorbent article, another absorbent article is manufactured, and after the other absorbent article is manufactured, the information (in the storage unit 52) is again manufactured when the absorbent article is manufactured again. The second angle position (for example, the processing angle of the embossing unit 10e) is set using the stored processing angle). The return step change according to the present embodiment refers to a step change to return to the state in which each processing unit 10 manufactured an absorbent article last time.
　以下では、図５を用いて、当該戻し段替えの手順について、エンボス加工ユニット１０ｅを例に挙げて説明する。図５は、戻し段替えの手順を説明するための説明図である。 In the following, with reference to FIG. 5, the procedure of the return step change will be described by taking the embossing unit 10 e as an example. FIG. 5 is an explanatory view for explaining the procedure of the return stage change.
　図５の上図には、前回エンボス加工ユニット１０ｅの交換部を取り外す直前のエンボス加工ユニット１０ｅの状態が示されている。図５の左側には、図２の右図の左側からみたエンボス加工ユニット１０ｅの正面概略図が示されており、上部ロール１１Ｕの内側には三角形状が表示されている。この三角形状は、エンボス加工の模様生成部（上部ロール１１Ｕの外周面に彫られた凸模様）を表しており、当該模様生成部が資材に対向した際に（換言すれば、図５において、当該模様生成部が６時の位置に位置して下向きになった際に）資材にエンボス加工を行う。 The upper view of FIG. 5 shows the state of the embossing unit 10e immediately before removing the replacement part of the embossing unit 10e last time. On the left side of FIG. 5, a front schematic view of the embossing unit 10e viewed from the left side of the right view of FIG. 2 is shown, and a triangular shape is displayed inside the upper roll 11U. This triangular shape represents the embossed pattern generating portion (a convex pattern engraved on the outer peripheral surface of the upper roll 11U), and when the pattern generating portion faces the material (in other words, in FIG. 5, When the pattern generation unit is located at the 6 o'clock position and is turned downward), the material is embossed.
　また、本実施の形態においては、前述した基準部角度（回転体角度）が０度のときに、エンボス加工ユニット１０ｅの交換を行うこととする。つまり、図５の上図には、基準部角度（回転体角度）が０度のときのエンボス加工ユニット１０ｅの状態が示されている。また、ここでは、加工角度は９０度に設定されており、前記記憶部５２にも加工角度が９０度であることが記録されていることとする（したがって、図５の上図においては、三角形状が９時の位置に位置しており、当該上図の状態から９０度反時計回りに上部ロール１１Ｕが回転すると模様生成部が資材に対向するようになっている）。したがって、本例における戻し段替えにおいては、以下で説明する戻し段替えが完了した際においても、当該上図と同様に、加工角度が９０度になるように（つまり、基準部角度０度から基準部の原点と回転体（上部ロール１１Ｕ）が連動して回転した際に、模様生成部が資材に対向するように）することが目的（目標）となる。 In the present embodiment, the embossing unit 10e is replaced when the reference part angle (rotational body angle) described above is 0 degrees. That is, the upper view of FIG. 5 shows the state of the embossing unit 10e when the reference portion angle (rotational body angle) is 0 degree. Further, in this case, the processing angle is set to 90 degrees, and it is recorded that the processing angle is 90 degrees also in the storage unit 52 (therefore, in the upper view of FIG. The shape is located at the 9 o'clock position, and when the upper roll 11U is rotated 90 degrees counterclockwise from the state of the above figure, the pattern generation unit faces the material). Therefore, in the return step change in this example, even when the return step change described below is completed, the processing angle is 90 degrees as in the above figure (that is, from the reference part angle 0 degree) When the origin of the reference section and the rotating body (upper roll 11U) rotate in conjunction with each other, the pattern generation section faces the material).
　図５の中央図は、戻し段替えが行われた直後のエンボス加工ユニット１０ｅの状態を示した図である。戻し段替えを行う際には、回転体加工ユニットの交換部の取り付けを行うこととなるが、この場合に、前記模様生成部が何時の位置に位置することになるかは不定である（取り付けの度に、区々である）。今回は、図５の中央図に示すように、作業者が交換部を取り付けた結果、模様生成部の位置が８時の位置になったこととしている。そして、当然のことながら、吸収性物品製造装置１（制御部５０）は、模様生成部が何時の位置に位置した状態で交換部の取り付けが行われたかを把握することができない。 The central view of FIG. 5 is a view showing the state of the embossing unit 10 e immediately after the return step change. When performing the return stage change, the replacement part of the rotating body processing unit is attached, but in this case, it is undetermined at what time the pattern generation part is positioned (attachment Each and every time). This time, as shown in the center view of FIG. 5, as a result of the worker attaching the replacement part, it is assumed that the position of the pattern generation part is 8 o'clock. And, as a matter of course, the absorbent article manufacturing apparatus 1 (control unit 50) can not grasp the attachment position of the replacement unit in the state where the pattern generation unit is positioned.
　そこで、先ず、制御部５０は、上部ロール１１Ｕ（及び下部ロール１１Ｌ）を回転させて、模様生成部を１２時の位置に位置させる（図５の下図参照。つまり、１２時の位置に位置させると共に、１２時の位置に模様生成部が位置することを把握する）。本実施の形態においては、鏡板２０にドグ検出部４１ａが設けられ、上部ロール１１Ｕ側（具体的には、上部ロール歯車１３Ｕ）にブラケット４１ｃを介してドグ４１ｂが設けられている。そして、ドグ４１ｂは、ドグ４１ｂがドグ検出部４１ａに対向した（ドグ検出部４１ａがドグ４１ｂを検出した）際に模様生成部が１２時の位置に位置するような位置に、取り付けられている。したがって、制御部５０が、図５の下図に示すように、上部ロール１１Ｕ（及び下部ロール１１Ｌ）を回転させ、ドグ検出部４１ａからドグ検出に係る通知を受信したタイミングで上部ロール１１Ｕ（及び下部ロール１１Ｌ）の回転を止めることにより、模様生成部を１２時の位置に位置させることができる。 Therefore, first, the control unit 50 rotates the upper roll 11U (and the lower roll 11L) to position the pattern generation unit at the 12 o'clock position (refer to the lower diagram in FIG. 5. That is, position it at the 12 o'clock position). Grasp that the pattern generation unit is positioned at the 12 o'clock position). In the present embodiment, a dog detection unit 41a is provided on the end plate 20, and a dog 41b is provided on the upper roll 11U side (specifically, the upper roll gear 13U) via a bracket 41c. The dog 41b is attached at a position where the pattern generation unit is located at the 12 o'clock position when the dog 41b faces the dog detection unit 41a (the dog detection unit 41a detects the dog 41b). . Therefore, as shown in the lower diagram of FIG. 5, the control unit 50 rotates the upper roll 11U (and the lower roll 11L) and receives the notification regarding dog detection from the dog detection unit 41a. By stopping the rotation of the roll 11L), the pattern generation unit can be positioned at the 12 o'clock position.
　次に、制御部５０は、戻し段替え開始前に保存しておいた加工角度を記憶部５２から読み出す。そして、当該加工角度を用いて、戻し段替え後の加工角度の設定を行う。具体的には、以下の通りとなる。 Next, the control unit 50 reads from the storage unit 52 the processing angle stored before the start of the return stage change. Then, using the processing angle, setting of the processing angle after the return step change is performed. Specifically, it is as follows.
　すなわち、図５の下図の状態は、加工角度が１８０度の状態（つまり、基準部角度０度から基準部の原点と回転体（上部ロール１１Ｕ）が連動して１８０度回転した際に、模様生成部が資材に対向する状態）となっているので、設定すべき加工角度（記憶部５２から読み出した加工角度）である９０度にするためには、上部ロール１１Ｕを反時計回りに９０度回転させる必要がある。すなわち、制御部５０は、１８０度－９０度＝９０度という演算を行い、上部ロール１１Ｕを反時計回りに９０度回転させる。このことにより、エンボス加工ユニット１０ｅの状態は、図５の上図の状態、すなわち、加工角度が９０度の状態（つまり、基準部角度０度から基準部の原点と回転体（上部ロール１１Ｕ）が連動して回転した際に、模様生成部が資材に対向する状態）となり、エンボス加工ユニット１０ｅの戻し段替えが完了する。 That is, the state shown in the lower part of FIG. 5 is a state where the processing angle is 180 degrees (that is, when the origin of the reference portion and the rotating body (upper roll 11U) rotate 180 degrees interlockingly from 0 degree of the reference portion) Since the generation unit is in a state of facing the material, the upper roll 11U is turned 90 degrees counterclockwise in order to make it 90 degrees, which is the processing angle to be set (the processing angle read from the storage unit 52). Need to rotate. That is, the control unit 50 performs an operation of 180 degrees-90 degrees = 90 degrees, and rotates the upper roll 11U 90 degrees counterclockwise. By this, the state of the embossing unit 10e is the state shown in the upper view of FIG. 5, that is, the state where the processing angle is 90 degrees (that is, the origin of the reference part from the reference part angle 0 degree and the rotating body (upper roll 11U) Becomes interlocked and rotates, the pattern generation unit faces the material), and the return step change of the embossing unit 10e is completed.
　なお、本手順では、基準部角度が０度のときに（換言すれば、０度でなければ０度に戻して）、エンボス加工ユニット１０ｅの交換を行うこととしたが、これに限定されるものではなく、基準部角度が０度でないときに交換を行うことも可能である。かかるケースにおいては、戻し段替えが行われる際に、この分の補正がさらに必要となる。 In this procedure, replacement of the embossing unit 10e is performed when the reference part angle is 0 degree (in other words, it is returned to 0 degree if it is not 0 degree), but it is limited to this It is also possible to replace when the reference part angle is not 0 degrees. In such a case, when the return stage change is performed, this amount of correction is further required.
　例えば、基準部角度が３０度のときに交換を行った場合には、図５の下図の状態は、加工角度が２１０度（＝１８０度＋３０度）の状態（つまり、基準部角度０度から基準部の原点と回転体（上部ロール１１Ｕ）が連動して２１０度回転した際に、模様生成部が資材に対向する状態）となる。したがって、上部ロール１１Ｕを反時計回りに１２０度（＝２１０度－９０度）回転させることで、加工角度が９０度の状態を作り出すこととなる。 For example, when replacement is performed when the reference part angle is 30 degrees, the state shown in the lower part of FIG. 5 is a state where the processing angle is 210 degrees (= 180 degrees + 30 degrees) (that is, from the reference part angle 0 degrees) When the origin of the reference portion and the rotating body (upper roll 11U) interlock with each other and rotate by 210 degrees, the pattern generation portion faces the material). Therefore, by rotating the upper roll 11U counterclockwise by 120 degrees (= 210 degrees-90 degrees), a processing angle of 90 degrees is created.
　また、前述したとおり、接着剤塗布ユニット１０ｃにおいても、前回ある吸収性物品から他の吸収性物品に段替えされる際に、調整された加工角度が接着剤塗布ユニット１０ｃの加工角度として記憶部５２に記憶されている。したがって、接着剤塗布ユニット１０ｃについても、記憶部５２に記憶されている加工角度を用いて戻し段替えを行う。つまり、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記情報（記憶部５２に記憶された加工角度）を用いて、第３角度位置（接着剤塗布ユニット１０ｃの加工角度）を設定する。 Further, as described above, also in the adhesive application unit 10c, when changing from the previous absorbent article to another absorbent article, the adjusted processing angle is stored as the processing angle of the adhesive application unit 10c. It is stored in 52. Therefore, also for the adhesive application unit 10c, the return step change is performed using the processing angle stored in the storage unit 52. That is, after manufacturing the other absorbent article, when manufacturing the certain absorbent article again, using the information (the processing angle stored in the storage unit 52), the third angle position (adhesive application) Set the processing angle) of the unit 10c.
　また、前述したとおり、それぞれの加工ユニット１０の調整機能により調整された加熱温度や加圧力等もそれぞれの加工ユニット１０の加熱温度や加圧力等として記憶部５２に記憶されている。そして、本実施の形態においては、これらの記憶部５２に記憶されているそれぞれの加工ユニット１０の加熱温度や加圧力等を用いて戻し段替えを行う。つまり、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記加熱部（加圧部）は、記憶された前記加熱温度（加圧力）にて加熱（加圧）する。 Further, as described above, the heating temperature, the pressing force, and the like adjusted by the adjustment function of each processing unit 10 are also stored in the storage unit 52 as the heating temperature, the pressing force, and the like of each processing unit 10. Then, in the present embodiment, the return stage change is performed using the heating temperature, the pressing force, and the like of each processing unit 10 stored in the storage unit 52. That is, after manufacturing the other absorbent article, when manufacturing the certain absorbent article again, the heating unit (pressurizing unit) heats (applys) the stored heating temperature (pressure). Pressure).
　また、本実施の形態においては、前回のある吸収性物品の製造において最後に調整された加工ユニット１０の加工角度を用いて戻し段替えを行う。つまり、記憶工程においては、第１角度位置（例えば、ロータリーダイカッターユニット１０ｂの加工角度）と、他の吸収性物品を製造する前のある吸収性物品を製造する際に行われた角度調整工程のうち、最後の角度調整工程において調整された第２角度位置（例えば、エンボス加工ユニット１０ｅの加工角度）と、の相対角度を特定可能な情報（例えば、双方の加工角度）として記憶する。したがって、加工ユニット１０の加工角度の記憶部５２への記憶は、調整（再設定）の度に記憶してもよいし、他の吸収性物品に段替えする直前のみ記憶してもよい。 Further, in the present embodiment, the return step change is performed using the processing angle of the processing unit 10 finally adjusted in the manufacturing of a certain absorbent article. That is, in the memory process, the angle adjustment process performed when manufacturing an absorbent article before manufacturing another absorbent article and the first angular position (for example, the processing angle of the rotary die cutter unit 10b) Among them, the relative angle between the second angle position (for example, the processing angle of the embossing unit 10e) adjusted in the last angle adjustment step and the relative angle is stored as identifiable information (for example, both processing angles). Therefore, storage of the processing angle of the processing unit 10 in the storage unit 52 may be stored each time of adjustment (resetting), or may be stored only immediately before changing to another absorbent article.
＜＜＜本実施の形態の有効性について＞＞＞
　前述したとおり、本実施の形態に係る吸収性物品の製造方法においては、所定回転軸回りの回転基準位置を設定する基準設定工程と、ある吸収性物品を製造するために、前記ある吸収性物品に係る資材を、張力を付与した状態で搬送方向に沿って搬送する搬送工程と、前記搬送方向における第１位置において、第１モータにより第１回転軸回りに回転する第１加工部を用いて、前記回転基準位置から前記所定回転軸回りに第１回転角度だけ回転した第１角度位置に対応する前記第１モータの回転位置にて、前記資材に第１加工を行う第１加工工程と、前記搬送方向における第２位置において、第２モータにより第２回転軸回りに回転する第２加工部を用いて、前記回転基準位置から前記所定回転軸回りに第２回転角度だけ回転した第２角度位置に対応する前記第２モータの回転位置にて、前記資材に第２加工を行う第２加工工程と、前記張力が解除された前記資材において、前記第１加工が施された部位と前記第２加工が施された部位とが所定の位置関係となるように、前記第２角度位置を調整する角度調整工程と、前記角度調整工程の後に、前記第１角度位置と調整後の前記第２角度位置との相対角度を特定可能な情報を記憶する記憶工程と、を有する製造方法によって、前記ある吸収性物品を製造し、前記ある吸収性物品を製造した後に、他の吸収性物品を製造し、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記情報を用いて、前記第２角度位置を設定することとした。そのため、速やかな戻し段替えを行うことが可能となる。 <<< Effect of this embodiment >>>
As described above, in the method of manufacturing an absorbent article according to the present embodiment, the above-mentioned certain absorbent articles are used to set a reference position of rotation about a predetermined rotation axis, and to manufacture a certain absorbent article. And a first processing unit rotating the first motor around the first rotation shaft by the first motor at the first position in the conveyance direction, and conveying the material according to the above in the conveyance direction in the tensioned state. A first processing step of performing first processing on the material at a rotational position of the first motor corresponding to a first angular position rotated by a first rotational angle around the predetermined rotational axis from the rotational reference position; At a second position in the transport direction, using a second processing unit rotated about a second rotation axis by a second motor, a second angle rotated about a predetermined rotation axis from the rotation reference position. Order A second processing step of performing a second processing on the material at a rotational position of the second motor corresponding to a position of the portion on which the first processing has been performed and the second processing in the material whose tension is released; The angle adjustment step of adjusting the second angle position so that the portion subjected to the processing has a predetermined positional relationship, and the second angle after adjustment with the first angle position after the angle adjustment step Manufacturing an absorbent article according to a manufacturing method including storing information capable of specifying relative angles with respect to positions, and manufacturing another absorbent article after manufacturing the absorbent article; After manufacturing the other absorbent article, when manufacturing the absorbent article again, the second angular position is set using the information. Therefore, it is possible to perform a quick return stage change.
　従来は、製品の仕様に合わせて加工ユニット１０を交換することにより、吸収性物品製造装置１の段替えを行っていた。この加工ユニット１０を交換して吸収性物品製造装置１を段替えする方法では、戻し段替えの際に長時間を費やすこととなり、生産性が低下する問題があった。つまり、吸収性物品製造装置１の段替えを行う度に製造条件がリセットされて、戻し段替えを行う製品の仕様に合わせて一から資材に対し加工を行う加工位置の調整が必要となっていた。 Heretofore, the absorbent article manufacturing apparatus 1 has been switched by replacing the processing unit 10 in accordance with the specification of the product. In the method of replacing the processing unit 10 and changing the absorbent article manufacturing apparatus 1, a long time is spent at the time of the return change, and there is a problem that the productivity is lowered. That is, each time the absorbent article manufacturing apparatus 1 is changed, the manufacturing conditions are reset, and it is necessary to adjust the processing position where the material is processed from the beginning according to the specifications of the product to be subjected to the return stage change. The
　これに対し本実施の形態においては、前述したように、前回のある吸収性物品を製造する際に調整された加工角度を記憶部５２に記憶させて、ある吸収性物品の戻し段替えをする際に、前記記憶させた加工角度を戻し段替えの際の加工角度として用いることとした。そのため、戻し段替え後の加工ユニット１０が資材に対して加工を行う加工位置が前回ある吸収性物品を製造していた際に調整された加工位置となり（すなわち、前回の状態に戻り）、一から（初期の設置状態から）加工位置の調整をする必要がない。すなわち、速やかな戻し段替えを行うことが可能となる。 On the other hand, in the present embodiment, as described above, the processing angle adjusted at the time of manufacturing the absorbent article of the previous time is stored in the storage unit 52 to change the stage of the absorbent article. At this time, the stored processing angle is used as the processing angle for the return step change. Therefore, it becomes the processing position adjusted when manufacturing the absorbent article in which the processing position at which the processing unit 10 after the return stage change performs processing on the material last time (that is, return to the previous state), There is no need to adjust the processing position (from the initial installation state). That is, it is possible to perform a quick return stage change.
　また、前記記憶工程においては、前記第１角度位置と、前記他の吸収性物品を製造する前の前記ある吸収性物品を製造する際に行われた前記角度調整工程のうち、最後の前記角度調整工程において調整された前記第２角度位置と、の相対角度を特定可能な情報として記憶することとした。つまり、ある吸収性物品の戻し段替え後の資材に対して加工を行う加工位置が前回ある吸収性物品を製造していた際の最後に調整された加工位置となるため、より一層速やかな戻し段替えを行うことが可能となる。 Further, in the storage step, the last angle in the angle adjustment step performed when manufacturing the certain absorbent article before manufacturing the other absorbent article and the first angular position. The relative angle of the second angular position adjusted in the adjusting step is stored as identifiable information. That is, since the processing position at which processing is performed on the material after the return step change of a certain absorbent article is the last adjusted processing position when manufacturing the absorbent article having the previous time, the return is more rapid. It becomes possible to change the form.
　また、前記第２加工部を備えた第２加工ユニットは加熱部を備え、前記加熱部の加熱温度を調整する温度調整工程を更に有し、前記記憶工程において、調整後の前記加熱温度を記憶し、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記加熱部は、記憶された前記加熱温度にて加熱することとした。つまり、ある吸収性物品に戻し段替え後の加熱部の加熱温度が前回ある吸収性物品を製造していた際に調整された加熱温度となり、一から加熱温度の調整をする必要がないため、より一層速やかな戻し段替えを行うことが可能となる。 The second processing unit provided with the second processing unit further includes a heating unit, and further includes a temperature adjustment step of adjusting the heating temperature of the heating unit, and storing the heating temperature after adjustment in the storage step. After manufacturing the other absorbent article, when manufacturing the absorbent article again, the heating unit is heated at the stored heating temperature. That is, since the heating temperature of the heating unit after changing the stage back to a certain absorbent article is the heating temperature adjusted when manufacturing the absorbent article in the previous time, it is not necessary to adjust the heating temperature from the beginning, It is possible to perform quicker return stage change.
　また、前記第２加工部を備えた第２加工ユニットは加圧部を備え、前記加圧部の加圧力を調整する加圧力調整工程を更に有し、前記記憶工程において、調整後の前記加圧力を記憶し、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記加圧部は、記憶された前記加圧力にて加圧することとした。つまり、ある吸収性物品の戻し段替え後の資材に対し加圧を行う加圧力が前回ある吸収性物品を製造していた際に調整された加圧力となり、一から加圧力の調整をする必要がないため、より一層速やかな戻し段替えを行うことが可能となる。 The second processing unit provided with the second processing unit further includes a pressing unit, and further includes a pressing force adjusting step of adjusting the pressing force of the pressing unit, and the adding step after the adjustment in the memory step. After storing the pressure and manufacturing the other absorbent article, when manufacturing the certain absorbent article again, the pressurizing unit applies pressure with the stored pressure. That is, the pressure applied to the material after the replacement of the absorbent article is the pressure applied when the absorbent article was manufactured last time, and the pressure applied must be adjusted from one to another. As a result, it is possible to perform quicker return stage change.
　また、前記搬送方向における第３位置において、第３加工部用いて、前記回転基準位置から前記所定回転軸回りに第３回転角度だけ回転したタイミングにて、接着剤を前記資材に塗布する第３加工工程を更に有し、前記張力が解除された前記資材において、前記第１加工が施された部位と前記接着剤が塗布された部位とが所定の位置関係となるように、第３角度位置を調整する他の角度調整工程を更に有し、前記情報は、前記第１角度位置と調整後の前記第３角度位置との相対角度を特定可能な情報が含まれ、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記情報を用いて、前記第３角度位置を設定することとした。そのため、接着剤の塗布装置のような加工部として回転体を有さない加工ユニット１０においても、速やかな戻し段替えを行うことが可能となる。 Further, an adhesive is applied to the material at a timing at which the third processing unit is used to rotate the third rotation angle around the predetermined rotation axis from the rotation reference position at the third position in the transport direction. A third angular position such that the material subjected to the first processing has a predetermined positional relationship with the portion to which the first processing has been applied and the portion to which the adhesive is applied in the material whose tension has been released, which further includes a processing step. Further includes another angle adjusting step of adjusting the information, the information including information capable of specifying a relative angle between the first angular position and the adjusted third angular position, the other absorbent article The third angular position is set using the information when manufacturing the certain absorbent article again after manufacturing the above. Therefore, even in the processing unit 10 that does not have a rotating body as a processing unit such as an adhesive application device, it is possible to perform a quick return stage change.
＝＝＝第二実施の形態＝＝＝
　次に、第二実施の形態について説明する。図６の上図は、図２の右図に対応するもので、第二実施の形態に係る加工ユニット１０の側面概略図であり、図６の下図は、第二実施の形態に係る上部ロール回転軸１２Ｕの嵌め合い部における断面形状を３つ示した図である。 === Second embodiment ===
Next, a second embodiment will be described. The upper view of FIG. 6 corresponds to the right view of FIG. 2 and is a schematic side view of the processing unit 10 according to the second embodiment, and the lower view of FIG. 6 is an upper roll according to the second embodiment. It is the figure which showed three cross-sectional shapes in the fitting part of 12 A of rotating shafts.
　第二実施の形態においては、回転体加工ユニットの交換部の交換の際に、上部ロール歯車１３Ｕと駆動歯車３２の噛み合わせを解除するのではなく、上部ロール回転軸１２Ｕをカップリング（軸継手）で着脱することにより回転体加工ユニットの交換部の交換を行う。そのため、第二実施の形態に係る回転体加工ユニットは、上部ロール歯車１３Ｕに設けられた上部ロール回転軸１２Ｕ（以下、駆動部３０側の回転軸ともいう）と、上部ロール１１Ｕに設けられた上部ロール回転軸１２Ｕ（以下、交換部側の回転軸ともいう）と、の２つの上部ロール回転軸１２Ｕ（以下、２つの回転軸ともいう）を備えており、２つの回転軸には嵌め合い部（軸と穴）が設けられている。そして、この２つの回転軸に設けられた嵌め合い部の断面は円形状ではなく、一部変形している。 In the second embodiment, when replacing the replacement part of the rotary body processing unit, the upper roll rotary shaft 12U is coupled to the coupling (shaft joint, instead of releasing the engagement between the upper roll gear 13U and the drive gear 32). The replacement part of the rotating body processing unit is replaced by attaching and detaching. Therefore, the rotary body processing unit according to the second embodiment is provided on the upper roll rotation shaft 12U (hereinafter, also referred to as a rotation shaft on the drive unit 30 side) provided on the upper roll gear 13U and the upper roll 11U. An upper roll rotary shaft 12U (hereinafter also referred to as a rotary shaft on the exchange portion side) and two upper roll rotary shafts 12U (hereinafter also referred to as two rotary shafts) are provided, and the two rotary shafts are fitted together A part (shaft and hole) is provided. And the cross section of the fitting part provided in these two rotating shafts is not circular shape, but is partially deformed.
　図６の下図に嵌め合い部の軸側断面形状として用いることができる例を３つ示している。つまり、図６の下図の左側の断面形状のような、回転軸中心から外周まである角度をもって切り欠きを有した形状や、図６の下図の中央の断面形状のような、半径方向に交差する方向に平面を有するような切り欠きを有した形状や、図６の下図の右側の断面形状のように、円形に突起した部位を有する水滴状のような形状を用いることができる。そして、嵌め合い部の穴側断面形状は、このような軸側断面形状に応じた断面形状となる。すなわち、回転軸が切り欠き部を有していれば相手側はそれに対応した突起部を有し、回転軸が突起部を有していれば相手側はそれに対応した切り欠き部を有する。そうすると、２つの回転軸の着脱が２つの回転軸の断面形状が一致する場合のみ可能となる。 Three examples which can be used as the axial side cross-sectional shape of the fitting portion are shown in the lower part of FIG. That is, it crosses in the radial direction, such as a shape with a notch at an angle from the center of the rotation axis to the outer periphery, such as the cross-sectional shape on the left side of the lower figure in FIG. It is possible to use a shape having a notch having a plane in the direction, or a water drop-like shape having a circularly projecting portion such as a cross-sectional shape on the right side of the lower view of FIG. And the hole side cross-sectional shape of a fitting part turns into a cross-sectional shape according to such an axial side cross-sectional shape. That is, if the rotary shaft has a notch, the other side has a corresponding protrusion, and if the rotary shaft has a protrusion, the other side has a corresponding notch. In this case, attachment and detachment of the two rotation shafts is possible only when the cross-sectional shapes of the two rotation shafts coincide with each other.
　次に、第二実施の形態においても、段替えの前後においてそれぞれの回転体加工ユニットが有する駆動部３０のエンコーダーは通電したままの状態である。つまり、他の吸収性物品を製造した後、再度ある吸収性物品を製造するまで、第１モータ（例えば、ロータリーダイカッターユニット１０ｂに配された駆動部３０）に設けられたエンコーダー、及び第２モータ（例えば、エンボス加工ユニット１０ｅに配された駆動部３０）に設けられたエンコーダーは通電状態にある。ここでいう「通電」とは、装置に電気が供給されている状態であり、装置の電源の入り切りという意味ではない。電源が「切り」であっても、電源プラグが電源に差し込まれていれば電源プラグを通じて電気が装置に供給されるので、このような場合も「通電」状態の範疇に入る。この段替え前後において、それぞれの駆動部３０のエンコーダーが通電状態にあることにより、制御部５０がそれぞれの駆動部３０の回転角度を検知することができる。 Next, also in the second embodiment, the encoders of the drive units 30 included in the respective rotating body processing units are in a state of being energized before and after the stage change. That is, after manufacturing another absorbent article, the encoder provided in the first motor (for example, the drive unit 30 disposed in the rotary die cutter unit 10b) until another absorbent article is manufactured again, and the second The encoder provided in the motor (for example, the drive unit 30 disposed in the embossing unit 10e) is in the energized state. The term "energization" as used herein refers to a state where electricity is supplied to the device, and does not mean that the power of the device is turned on or off. Even if the power is "off", if the power plug is plugged into the power supply, electricity will be supplied to the device through the power plug, so this case also falls in the "energized" category. Before and after the step change, the encoder of each drive unit 30 is in the energized state, whereby the control unit 50 can detect the rotation angle of each drive unit 30.
　そして、このエンコーダーが通電した状態で段替えを行うことを容易にしているのが、回転体加工ユニットの段替えにおいて回転体加工ユニットの交換部のみを交換し、回転体加工ユニットの駆動部３０を交換しないことにある。つまり、前記ある吸収性物品を製造した後に、前記他の吸収性物品を製造する際には、前記第２加工部に換えて他の加工部を用い、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際には、前記他の加工部に換えて再度前記第２加工部を用いる。このようにすると、該回転体加工ユニットの段替えの間に、電源プラグが電源に差し込まれた状態を維持することができるので、容易にエンコーダーを通電した状態とすることができる。 Then, it is easy to perform the stage change in a state in which the encoder is energized. In the stage change of the rotary body processing unit, only the replacement portion of the rotary body processing unit is replaced to change the drive unit 30 of the rotary body processing unit. Not to replace it. That is, after manufacturing the absorbent article, when manufacturing the other absorbent article, after using the other processing unit instead of the second processing unit, after manufacturing the other absorbent article When manufacturing the said absorbent article again, it changes to the said other process part, and uses the said 2nd process part again. With this configuration, the power plug can be maintained in the state of being inserted into the power source during the change of the rotary body processing unit, so that the encoder can be easily energized.
　また、本実施の形態においては、カップリング（軸継手）での装着を行っているため、前述したような不定性（模様生成部が何時の位置に位置することになるかが、取り付けの度に、区々となる事象）が生じない。つまり、駆動部３０の回転角度と模様生成部が何時の位置に位置するかは、一対一に対応しており、この対応関係が取り付けの度に変わることはない。したがって、エンコーダーを通電した状態としておけば、制御部５０は、段替えの前後で、駆動部３０の回転角度のみならず、模様生成部の位置も把握することができる。 Further, in the present embodiment, since the attachment is performed by the coupling (shaft joint), the degree of attachment may be determined as described above (when the pattern generation portion is positioned. Event does not occur. That is, the rotational angle of the drive unit 30 and the position of the pattern generation unit correspond to each other in one-to-one correspondence, and this correspondence does not change at the time of attachment. Therefore, when the encoder is energized, the control unit 50 can grasp not only the rotation angle of the drive unit 30 but also the position of the pattern generation unit before and after the change of stage.
　また、駆動部３０側の回転軸の搬送経路上の位置が回転体加工ユニットの交換部の交換により変更されないため、戻し段替え後の回転体加工ユニットの交換部（加工部）の搬送経路上における位置が、取り外す前に回転体加工ユニットの交換部（加工部）が設置されていた搬送経路上における位置と同じ位置となる。つまり、ある回転体加工ユニットの交換部（加工部）は、搬送経路上（ユニット架台１５）の所定の位置にのみ設置される。 In addition, since the position on the transport path of the rotary shaft on the drive unit 30 side is not changed by replacement of the replacement part of the rotary body processing unit, the transport path of the replacement part (machining part) of the rotary body processing unit after return stage change The position at the same position as the position on the transport path where the replacement portion (processing portion) of the rotating body processing unit was installed before the removal. That is, the replacement part (processing part) of a certain rotating body processing unit is installed only at a predetermined position on the transport path (unit rack 15).
＝＝＝第三実施の形態＝＝＝
　次に、第三実施の形態について説明する。図７は、図２の右図に対応するものであり、第三実施の形態に係る加工ユニット１０の側面概略図である。 === Third embodiment ===
Next, the third embodiment will be described. FIG. 7 corresponds to the right view of FIG. 2 and is a schematic side view of the processing unit 10 according to the third embodiment.
　第三実施の形態においては、回転体加工ユニットの交換部の交換の際に、上部ロール歯車１３Ｕと駆動歯車３２の噛み合わせを解除するのではなく、上部ロール回転軸１２Ｕと下部ロール回転軸１２Ｌをそれぞれカップリング（軸継手）により着脱して加工ユニット１０の交換を行う。そして、このカップリングとしてシュミットカップリング１４（リンク式のカップリングであり、加工部の軸径の変化によるカップリング着脱位置の高さ寸法の変化に対応できるカップリング）を用いる。 In the third embodiment, when replacing the replacement part of the rotary body processing unit, the upper roll rotary shaft 12U and the lower roll rotary shaft 12L are not released instead of releasing the engagement between the upper roll gear 13U and the drive gear 32. Are respectively attached and detached by couplings (shaft couplings) to replace the processing unit 10. Then, a Schmidt coupling 14 (link type coupling, which can cope with the change of the height dimension of the coupling attachment and detachment position due to the change of the shaft diameter of the processed portion) is used as this coupling.
　第三実施の形態によれば、回転体加工ユニットの交換部を交換する際に鏡板２０の裏側の機構が交換されない。つまり、駆動部３０側の回転軸の搬送経路上における位置が回転体加工ユニットの交換部の交換により変更されない。 According to the third embodiment, the mechanism on the back side of the mirror plate 20 is not replaced when replacing the replacement part of the rotating body processing unit. That is, the position on the conveyance path of the rotating shaft on the drive unit 30 side is not changed by the replacement of the rotating body processing unit.
　また、シュミットカップリング１４の着脱を第二実施の形態のように断面形状が一致する場合のみ可能としてもよい。 Further, the mounting and demounting of the Schmidt coupling 14 may be made possible only when the cross-sectional shapes match as in the second embodiment.
＝＝＝第四実施の形態＝＝＝
　次に、第四実施の形態について説明する。上記においては、搬送される資材の伸長状態が時々刻々と変化することに対応して、制御部５０がそれぞれの加工ユニット１０の加工角度を調整する角度調整工程（すなわち、連続した角度調整工程）について説明したが、第四実施の形態においては、上記のような角度調整工程をより間欠的に実行することとし、吸収性物品製造装置１の以下の製造条件（加工条件）を調整したタイミングでは、必ず角度調整工程を実行することとする。 === Fourth embodiment ===
Next, a fourth embodiment will be described. In the above description, the angle adjustment step (that is, the continuous angle adjustment step) in which the control unit 50 adjusts the processing angle of each processing unit 10 in response to the change in the extension state of the transported material from moment to moment In the fourth embodiment, at the timing when the following manufacturing conditions (processing conditions) of the absorbent article manufacturing apparatus 1 are adjusted, the angle adjustment process as described above is performed more intermittently. Be sure to execute the angle adjustment process.
　先ず、搬送される資材の張力をテンション調整装置により変更して、吸収性物品製造装置１の製造条件を調整したタイミングで角度調整工程を実行する。つまり、張力調整工程の後に、前記角度調整工程を実行する。搬送される資材に付与される張力が変更されると、資材の伸長状態に変化が生じ得る。したがって、このタイミングでそれぞれの加工ユニット１０の加工角度を調整することにより、適切なタイミングで角度調整工程が実行されるため、次の記憶工程が実行される際により正確な情報を記憶部５２に記憶することができ、速やかな戻し段替えを行うことが可能となる。 First, the tension of the material to be transported is changed by the tension adjusting device, and the angle adjusting process is performed at the timing when the manufacturing conditions of the absorbent article manufacturing apparatus 1 are adjusted. That is, after the tension adjustment step, the angle adjustment step is performed. Changes in the tension applied to the material being transported may cause changes in the material's extensional state. Therefore, by adjusting the processing angle of each processing unit 10 at this timing, the angle adjustment step is performed at an appropriate timing, so that more accurate information can be stored in storage unit 52 when the next storage step is performed. It can be stored, and it becomes possible to carry out quick return stage change.
　次に、搬送される資材の搬送速度を搬送機構により変更して、吸収性物品製造装置１の製造条件を調整したタイミングで角度調整工程を実行する。つまり、速度調整工程の後に、前記角度調整工程を実行する。資材を搬送する搬送機構は、資材の搬送速度を調整する機能を有しており（速度調整工程に相当）、単位時間当たりの吸収性物品の製造量を調整するために、資材の搬送速度を調整する場合がある。例えば、何かしらの不具合により吸収性物品の製造が停止し、製造の再開後に通常よりも単位時間当たりの吸収性物品の製造量を上げるために、資材の搬送速度を大きくする場合がある。 Next, the conveyance speed of the material to be conveyed is changed by the conveyance mechanism, and the angle adjustment process is executed at the timing when the manufacturing conditions of the absorbent article manufacturing apparatus 1 are adjusted. That is, after the speed adjustment process, the angle adjustment process is performed. The conveyance mechanism for conveying the material has a function of adjusting the conveyance speed of the material (corresponding to the speed adjustment process), and the conveyance speed of the material is adjusted to adjust the production amount of the absorbent article per unit time. May adjust. For example, the production of the absorbent article may be stopped due to some failure, and the delivery speed of the material may be increased in order to increase the production of the absorbent article per unit time more than usual after production resumes.
　搬送される資材の搬送速度が変更されると、資材の移動スピードが変わるため、資材の伸長状態に変化が生じる可能性がある。したがって、このタイミングでそれぞれの加工ユニット１０の加工角度を調整することにより、適切なタイミングで角度調整工程が実行されるため、次の記憶工程が実行される際により正確な情報を記憶部５２に記憶することができ、速やかな戻し段替えを行うことが可能となる。 When the transfer speed of the material to be transferred is changed, the moving speed of the material is changed, which may change the extension state of the material. Therefore, by adjusting the processing angle of each processing unit 10 at this timing, the angle adjustment step is performed at an appropriate timing, so that more accurate information can be stored in storage unit 52 when the next storage step is performed. It can be stored, and it becomes possible to carry out quick return stage change.
　最後に、トップシートが資材ロールから繰り出されてトップライン３を搬送されることは既に述べたが、搬送されているトップシートの資材ロールから、次の新しいトップシートの資材ロールにトップシートの供給元を変更する際にも角度調整工程が実行される。つまり、資材ロールを次の新しい資材ロールに交換（交換工程に相当）した後に、角度調整工程が実行される。既存の資材ロールから新しい資材ロールへの資材の供給元の交換は、既存の資材ロールと新しい資材ロールとを資材継ぎで継いで行われる。つまり、既存の資材ロールから新しい資材ロールへと供給元が切り替わると、資材が繰り出される資材ロールの半径方向の位置がこの切り替わりと同時に半径方向の外側へ移動する。そして、前述したとおり、資材ロールに巻かれた資材シートの伸長状態は半径方向により異なる。つまり、新しい資材ロールに切り替わるタイミングにおいては、繰り出される資材シートの資材ロールの半径方向位置が大きく変化するため、資材の伸長状態にも変化が生じ得る。そのため、個々の加工ユニット１０の加工角度について調整を行うことが望ましい。したがって、このタイミングでそれぞれの加工ユニット１０の加工角度を調整することにより、適切なタイミングで角度調整工程が実行されるため、次の記憶工程が実行される際により正確な情報を記憶部５２に記憶することができ、速やかな戻し段替えを行うことが可能となる。 Finally, although it has already been stated that the top sheet is fed from the material roll and conveyed on the top line 3, the top sheet is fed from the material roll of the top sheet being conveyed to the material roll of the next new top sheet. The angle adjustment process is also performed when changing the source. That is, after the material roll is replaced with the next new material roll (corresponding to the replacement process), the angle adjustment process is performed. Supply source exchange of material from an existing material roll to a new material roll is performed by joining the existing material roll and the new material roll by material joining. That is, when the supply source is switched from the existing material roll to the new material roll, the radial position of the material roll from which the material is fed is simultaneously moved outward in the radial direction. And as above-mentioned, the expansion | extension state of the material sheet wound around the material roll changes with radial directions. That is, at the timing of switching to a new material roll, the radial position of the material roll of the material sheet to be fed out changes significantly, so that the extension state of the material may also change. Therefore, it is desirable to adjust the processing angle of each processing unit 10. Therefore, by adjusting the processing angle of each processing unit 10 at this timing, the angle adjustment step is performed at an appropriate timing, so that more accurate information can be stored in storage unit 52 when the next storage step is performed. It can be stored, and it becomes possible to carry out quick return stage change.
＝＝＝その他の実施形態＝＝＝
　上記の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更・改良され得ると共に、本発明には、その等価物が含まれることは言うまでもない。 === Other Embodiments ===
The above embodiments are for the purpose of facilitating the understanding of the present invention, and are not for the purpose of limiting the present invention. It goes without saying that the present invention can be modified and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.
　また、上記実施の形態においては、それぞれの駆動部３０のエンコーダーを通電したまま段替えを行うことにより、段替え前後において制御部５０がそれぞれの駆動部３０の回転角度を検知することができたが、これに限らない。例えば、それぞれの駆動部３０のエンコーダーを非通電にする場合でも、非通電にする前にそれぞれの駆動部３０の駆動軸３１を回転できないように拘束してから、それぞれの駆動部３０の回転角度を記憶部５２に記憶しておき、エンコーダーが非通電状態の間は、該拘束状態を維持していればよい。つまり、前記記憶工程において、前記情報を記憶する際の、前記第１モータ及び前記第２モータの角度位置を記憶し、前記第１モータに設けられたエンコーダー、及び前記第２モータに設けられたエンコーダーが非通電状態の際に、前記第１モータ及び前記第２モータをそれぞれ回転不能に拘束する（拘束工程に相当）ようにしてもよい。 Further, in the above embodiment, the control unit 50 can detect the rotation angle of each driving unit 30 before and after the switching by performing the step change while the encoders of the respective drive units 30 are energized. But it is not limited to this. For example, even when the encoders of the respective drive units 30 are de-energized, the drive shaft 31 of the respective drive units 30 can not be rotated before being de-energized. May be stored in the storage unit 52, and the restricted state may be maintained while the encoder is in the non-energized state. That is, in the storage step, the angular positions of the first motor and the second motor at the time of storing the information are stored, and an encoder provided in the first motor and a second motor are provided. When the encoder is in the non-energized state, each of the first motor and the second motor may be non-rotatably restrained (corresponding to a restraining step).
　このような拘束工程を実行するようにすれば、エンコーダーが非通電状態から通電状態に戻った際に、制御部５０は記憶部５２からそれぞれの駆動部３０の回転角度を読み出し、それぞれの駆動部３０の回転角度であると設定してから該拘束状態を解放すれば、駆動部３０の原点出しを実行することなく、制御部５０がそれぞれの駆動部３０の回転角度を検知できることとなる。この駆動軸３１を拘束する例としては、高摩擦力であって駆動軸３１との間に滑りが生じにくい拘束部を駆動軸３１の外周面の一部の全周に亘って押圧する拘束機構を設けることにより、摩擦力を用いて機械的に駆動軸３１の回転を拘束する例を挙げることができる。 If such a restraining step is performed, when the encoder returns from the non-energized state to the energized state, the control unit 50 reads the rotation angles of the respective drive units 30 from the storage unit 52, and the respective drive units If the rotation state is set to 30 and then released from the restricted state, the control unit 50 can detect the rotation angle of each drive unit 30 without executing the origination of the drive unit 30. As an example of restraining the drive shaft 31, there is a restraining mechanism which presses a restraining portion which has high friction force and is unlikely to slip with the drive shaft 31 over the entire circumference of a part of the outer peripheral surface of the drive shaft 31. Can provide an example in which the rotation of the drive shaft 31 is mechanically restrained using a frictional force.
　また、上記実施の形態においては、回転体加工ユニットの交換部の搬送経路上の位置決めを凹部１０ｎと凸部１５ａを嵌め合わせて行っていたが、これに限らない。例えば、図８の上図に示すように、回転体加工ユニットの交換部の外側面とユニット架台１５の内側面を嵌め合わせて、ユニット架台１５の回転体加工ユニットの交換部設置面には、回転体加工ユニットの交換部を移動させるためのスライドレール１６（エアースライドレール）を設けてもよい。また別の例では、図８の中央図に示すように、鏡板２０に回転体加工ユニットの交換部の外側面と嵌め合わせて位置決めする位置決め部２０ａを設けてもよいし、図８の下図に示すように、回転体加工ユニットの交換部に穴を設けて鏡板２０に設けられた位置決め棒２０ｂが嵌め合うようにして位置決めしてもよい。 Further, in the above embodiment, the positioning of the replacement portion of the rotating body processing unit on the transport path is performed by fitting the concave portion 10n and the convex portion 15a, but the present invention is not limited thereto. For example, as shown in the upper view of FIG. 8, the outer side surface of the replacement portion of the rotary body processing unit and the inner side surface of the unit rack 15 are fitted together, and the exchange portion installation surface of the rotary body processing unit of the unit rack 15 is You may provide the slide rail 16 (air slide rail) for moving the replacement part of a rotary body processing unit. In another example, as shown in the central view of FIG. 8, the end plate 20 may be provided with a positioning portion 20 a which is fitted and positioned with the outer surface of the replacement portion of the rotating body processing unit. As shown, a hole may be provided in the replacement part of the rotating body processing unit, and the positioning rod 20b provided on the end plate 20 may be positioned in a fitted manner.
　また、上記実施の形態においては、回転体加工ユニットの駆動部３０と加工部との駆動回転の伝達機構として歯車を用いた機構を用いたが、これに限らない。例えば、プーリーとベルトを用いた駆動回転の伝達機構を用いても構わない。 Moreover, in the said embodiment, although the mechanism using the gear was used as a transmission mechanism of drive rotation with the drive part 30 of a rotary body processing unit, and a process part, it does not restrict to this. For example, a transmission mechanism of drive rotation using a pulley and a belt may be used.
　また、上記実施の形態においては、加工角度を単一の角度としていたが、これに限らない。例えば、加工の開始回転角度と終了回転角度の範囲を加工角度としても構わない。 Moreover, in the said embodiment, although the process angle was made into the single angle, it does not restrict to this. For example, the range of the start rotation angle and the end rotation angle of processing may be used as the processing angle.
　また、上記実施の形態においては、前回のある吸収性物品の製造において最後に調整された加工ユニット１０の加工角度を用いて戻し段替えを行ったが、これに限らない。例えば、加工角度だけではなく、最後に調整された加熱温度や加圧力を用いて戻し段替えを行ってもよい。 Moreover, in the said embodiment, although the return step change was performed using the process angle of the process unit 10 finally adjusted in manufacture of a certain absorbent article in the last time, it does not restrict to this. For example, the return stage change may be performed using not only the processing angle but also the heating temperature and pressure adjusted last.
　また、上記実施の形態においては、回転体加工ユニットが上下一対の回転体のみを有したが、これに限らない。例えば、資材に貼り付ける材料を製品ピッチで上下一対の加工部に受け渡しを行う上下一対とは別の回転体（加工部以外の回転体）を有していても構わない。 Moreover, in the said embodiment, although the rotary body processing unit had only a pair of upper and lower rotary bodies, it does not restrict to this. For example, you may have another rotary body (rotary bodies other than a process part) other than a pair of upper and lower sides which deliver the material stuck on material to a pair of upper and lower process parts by product pitch.
　また、上記実施の形態においては、戻し段替えの前後において電源プラグを電源に差し込んでエンコーダーを通電状態としていたが、これに限らない。例えば、加工ユニット１０にバッテリーバックアップを備えて、該バッテリーバックアップにより通電状態としてもよい。 Further, in the above embodiment, the power plug is connected to the power source before and after the return step change to put the encoder into the energized state, but the present invention is not limited to this. For example, the processing unit 10 may be provided with a battery back-up, and the battery back-up may be turned on.
　また、上記実施の形態においては、基準部をエンド切断ユニット１０ａの駆動部３０としたが、これに限らない。例えば、加工ユニット１０とは別に原点の設定のみに用いられる基準部を設けてもよい。 Further, in the above embodiment, although the reference portion is the drive portion 30 of the end cutting unit 10a, the present invention is not limited to this. For example, a reference unit may be provided separately from the processing unit 10 and used only for setting the origin.
　また、上記実施の形態においては、トップライン３と製品ライン２に設けられた加工ユニット１０について説明したが、これに限らない。吸収体ライン４やバックライン５に設けられた加工ユニット１０についても本発明を適用することが可能である。 Moreover, in the said embodiment, although the processing unit 10 provided in the top line 3 and the product line 2 was demonstrated, it does not restrict to this. The present invention is also applicable to the processing units 10 provided in the absorber line 4 and the back line 5.
１　吸収性物品製造装置、２　製品ライン、３　トップライン、４　吸収体ライン
５　バックライン、１０　加工ユニット、１０ａ　エンド切断ユニット
１０ｂ　ロータリーダイカッターユニット、１０ｃ　接着剤塗布ユニット
１０ｄ　テープ貼付ユニット、１０ｅ　エンボス加工ユニット、１０ｎ　凹部
１１Ｕ　上部ロール、１１Ｌ　下部ロール、１２Ｕ　上部ロール回転軸
１２Ｌ　下部ロール回転軸、１３Ｕ　上部ロール歯車、１３Ｌ　下部ロール歯車
１４　シュミットカップリング、１５　ユニット架台、１５ａ　凸部
１６　スライドレール、２０　鏡板、２０ａ　位置決め部、２０ｂ　位置決め棒
３０　駆動部、３１　駆動軸、３２　駆動歯車、４０　加工位置検出部
４１ａ　ドグ検出部、４１ｂ　ドグ、４１ｃ　ブラケット、５０　制御部、５１　分析部
５２　記憶部、Ａ　合流地点、Ｆ　対向位置 DESCRIPTION OF SYMBOLS 1 Absorbent article manufacturing apparatus, 2 product lines, 3 top lines, 4 absorber lines 5 back lines, 10 processing units, 10a end cutting units 10b rotary die cutter units, 10c adhesive application units 10d tape sticking units, 10e embossing Unit, 10 n concave 11 U upper roll, 11 L lower roll, 12 U upper roll rotary shaft 12 L lower roll rotary shaft, 13 U upper roll gear, 13 L lower roll gear 14 Schmidt coupling, 15 unit mount frame, 15 a convex part 16 slide rail, 20 mirror plate , 20a positioning unit, 20b positioning rod 30 drive unit, 31 drive shaft, 32 drive gear, 40 machining position detection unit 41a dog detection unit 41b dog 41c bracket 50 control unit 51 analysis unit 52 storage unit A joining point F facing position

Claims (12)

  1. 　所定回転軸回りの回転基準位置を設定する基準設定工程と、
    　ある吸収性物品を製造するために、前記ある吸収性物品に係る資材を、張力を付与した状態で搬送方向に沿って搬送する搬送工程と、
    　前記搬送方向における第１位置において、第１モータにより第１回転軸回りに回転する第１加工部を用いて、前記回転基準位置から前記所定回転軸回りに第１回転角度だけ回転した第１角度位置に対応する前記第１モータの回転位置にて、前記資材に第１加工を行う第１加工工程と、
    　前記搬送方向における第２位置において、第２モータにより第２回転軸回りに回転する第２加工部を用いて、前記回転基準位置から前記所定回転軸回りに第２回転角度だけ回転した第２角度位置に対応する前記第２モータの回転位置にて、前記資材に第２加工を行う第２加工工程と、
    　前記張力が解除された前記資材において、前記第１加工が施された部位と前記第２加工が施された部位とが所定の位置関係となるように、前記第２角度位置を調整する角度調整工程と、
    　前記角度調整工程の後に、前記第１角度位置と調整後の前記第２角度位置との相対角度を特定可能な情報を記憶する記憶工程と、
    を有する製造方法によって、前記ある吸収性物品を製造し、
    　前記ある吸収性物品を製造した後に、他の吸収性物品を製造し、
    　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記情報を用いて、前記第２角度位置を設定することを特徴とする吸収性物品の製造方法。     A reference setting step of setting a rotation reference position about a predetermined rotation axis;
    A conveying step of conveying a material according to the absorbent article in a tensioned state along a conveying direction to produce an absorbent article;
    At a first position in the transport direction, using a first processing unit rotated about a first rotation axis by a first motor, a first angle rotated about a predetermined rotation axis from the rotation reference position. A first processing step of performing first processing on the material at a rotational position of the first motor corresponding to the position;
    At a second position in the transport direction, using a second processing unit rotated about a second rotation axis by a second motor, a second angle rotated about a predetermined rotation axis from the rotation reference position. A second processing step of performing second processing on the material at the rotational position of the second motor corresponding to the position;
    Angle adjustment for adjusting the second angular position so that the portion subjected to the first processing and the portion subjected to the second processing have a predetermined positional relationship in the material in which the tension is released. Process,
    Storing, after the angle adjustment step, information capable of specifying a relative angle between the first angular position and the adjusted second angular position;
    Manufacturing the above absorbent article by a manufacturing method having
    After producing the above absorbent article, another absorbent article is produced,
    A method of manufacturing an absorbent article, wherein the second angular position is set using the information when manufacturing the certain absorbent article again after manufacturing the other absorbent article.
  2. 　請求項１に記載の吸収性物品の製造方法において、
    　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造するまで、前記第１モータに設けられたエンコーダー、及び前記第２モータに設けられたエンコーダーは通電状態にあることを特徴とする吸収性物品の製造方法。     In the method of manufacturing an absorbent article according to claim 1,
    After manufacturing the other absorbent article, the encoder provided to the first motor and the encoder provided to the second motor are in an energized state until the absorbent article is manufactured again. And a method of manufacturing the absorbent article.
  3. 　請求項1に記載の吸収性物品の製造方法において、
    　前記記憶工程において、前記情報を記憶する際の、前記第１モータ及び前記第２モータの角度位置を記憶し、
    　前記第１モータに設けられたエンコーダー、及び前記第２モータに設けられたエンコーダーが非通電状態の際に、前記第１モータ及び前記第２モータをそれぞれ回転不能に拘束する拘束工程を有することを特徴とする吸収性物品の製造方法。     In the method of manufacturing an absorbent article according to claim 1,
    Storing the angular positions of the first motor and the second motor when storing the information in the storing step;
    It has a restraining step of non-rotatably restraining the first motor and the second motor when the encoder provided to the first motor and the encoder provided to the second motor are not energized. The manufacturing method of the absorbent article characterized by the above.
  4. 　請求項１乃至請求項３のいずれかに記載の吸収性物品の製造方法において、
    　前記ある吸収性物品を製造した後に、前記他の吸収性物品を製造する際には、前記第２加工部に換えて他の加工部を用い、
    　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際には、前記他の加工部に換えて再度前記第２加工部を用いることを特徴とする吸収性物品の製造方法。     In the method of manufacturing an absorbent article according to any one of claims 1 to 3.
    After the production of the absorbent article, when producing the other absorbent article, the second processing section is replaced with another processing section,
    After manufacturing the other absorbent article, when manufacturing the certain absorbent article again, it changes to the other processing part and uses the second processing part again, and manufacture of an absorbent article Method.
  5. 　請求項１乃至請求項４のいずれかに記載の吸収性物品の製造方法において、
    　前記ある吸収性物品に係る資材に付与する張力を調整する張力調整工程を更に有し、
    　前記張力調整工程の後に、前記角度調整工程を実行することを特徴とする吸収性物品の製造方法。     In the method of manufacturing an absorbent article according to any one of claims 1 to 4.
    The method further includes a tension adjustment step of adjusting tension applied to the material relating to the absorbent article,
    The method for manufacturing an absorbent article, wherein the angle adjustment step is performed after the tension adjustment step.
  6. 　請求項１乃至請求項５のいずれかに記載の吸収性物品の製造方法において、
    　前記資材の搬送速度を調整する速度調整工程を更に有し、
    　前記速度調整工程の後に、前記角度調整工程を実行することを特徴とする吸収性物品の製造方法。     In the method of manufacturing an absorbent article according to any one of claims 1 to 5,
    The method further includes a speed adjustment step of adjusting the transfer speed of the material,
    The method of manufacturing an absorbent article, wherein the angle adjustment step is performed after the speed adjustment step.
  7. 　請求項１乃至請求項６のいずれかに記載の吸収性物品の製造方法において、
    　前記搬送工程では、資材ロールから繰り出された前記資材を搬送し、
    　前記資材ロールを新しい資材ロールに交換する交換工程を有し、
    　前記交換工程の後に、前記角度調整工程を実行することを特徴とする吸収性物品の製造方法。     In the method of manufacturing an absorbent article according to any one of claims 1 to 6,
    In the conveying step, the material fed from the material roll is conveyed;
    Replacing the material roll with a new material roll;
    The method of manufacturing an absorbent article, wherein the angle adjustment step is performed after the replacement step.
  8. 　請求項１乃至請求項７のいずれかに記載の吸収性物品の製造方法において、
    　前記第２加工部を備えた第２加工ユニットは加熱部を備え、
    　前記加熱部の加熱温度を調整する温度調整工程を更に有し、
    　前記記憶工程において、調整後の前記加熱温度を記憶し、
    　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記加熱部は、記憶された前記加熱温度にて加熱することを特徴とする吸収性物品の製造方法。     In the method of manufacturing an absorbent article according to any one of claims 1 to 7,
    The second processing unit including the second processing unit includes a heating unit,
    The method further comprises a temperature adjustment step of adjusting the heating temperature of the heating unit,
    Storing the adjusted heating temperature in the storing step;
    A method of manufacturing an absorbent article, characterized in that when the absorbent article is manufactured again after manufacturing the other absorbent article, the heating unit is heated at the stored heating temperature.
  9. 　請求項１乃至請求項８のいずれかに記載の吸収性物品の製造方法において、
    　前記第２加工部を備えた第２加工ユニットは加圧部を備え、
    　前記加圧部の加圧力を調整する加圧力調整工程を更に有し、
    　前記記憶工程において、調整後の前記加圧力を記憶し、
    　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記加圧部は、記憶された前記加圧力にて加圧することを特徴とする吸収性物品の製造方法。     A method of manufacturing an absorbent article according to any one of claims 1 to 8.
    The second processing unit including the second processing unit includes a pressing unit,
    The method further includes a pressure adjustment step of adjusting the pressure of the pressure unit,
    Storing the pressure after adjustment in the storing step;
    A method of manufacturing an absorbent article, characterized in that, when manufacturing the certain absorbent article again after manufacturing the other absorbent article, the pressurizing unit applies pressure with the stored pressure. .
  10. 　請求項１乃至請求項９のいずれかに記載の吸収性物品の製造方法において、
    　前記搬送方向における第３位置において、第３加工部用いて、前記回転基準位置から前記所定回転軸回りに第３回転角度だけ回転したタイミングにて、接着剤を前記資材に塗布する第３加工工程を更に有し、
    　前記張力が解除された前記資材において、前記第１加工が施された部位と前記接着剤が塗布された部位とが所定の位置関係となるように、第３角度位置を調整する他の角度調整工程を更に有し、
    　前記情報は、前記第１角度位置と調整後の前記第３角度位置との相対角度を特定可能な情報が含まれ、
    　前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記第１角度位置と調整後の前記第３角度位置との相対角度を特定可能な情報を用いて、前記第３角度位置を設定することを特徴とする吸収性物品の製造方法。     In the method of manufacturing an absorbent article according to any one of claims 1 to 9,
    A third processing step of applying an adhesive to the material at a third position in the transport direction, using a third processing unit, at a timing when it is rotated by a third rotation angle around the predetermined rotation axis from the rotation reference position And have
    Another angle adjustment for adjusting a third angle position so that a portion subjected to the first processing and a portion to which the adhesive is applied have a predetermined positional relationship in the material in which the tension is released. Further comprising a process,
    The information includes information that can specify a relative angle between the first angular position and the adjusted third angular position.
    After manufacturing the other absorbent article, when manufacturing the absorbent article again, using information that can specify the relative angle between the first angular position and the adjusted third angular position, A method of manufacturing an absorbent article, wherein the third angular position is set.
  11. 　請求項１乃至請求項１０のいずれかに記載の吸収性物品の製造方法において、
    　前記記憶工程においては、前記第１角度位置と、前記他の吸収性物品を製造する前の前記ある吸収性物品を製造する際に行われた前記角度調整工程のうち、最後の前記角度調整工程において調整された前記第２角度位置と、の相対角度を特定可能な情報として記憶することを特徴とする吸収性物品の製造方法。     A method of manufacturing an absorbent article according to any one of claims 1 to 10.
    In the memory step, the last angle adjustment step among the angle adjustment step performed when manufacturing the certain absorbent article before manufacturing the first angular position and the other absorbent article And storing the relative angle between the second angular position and the adjusted second angular position as identifiable information.
  12. 　所定回転軸回りの回転基準位置を設定するための基準部と、
    　吸収性物品を製造するために、前記吸収性物品に係る資材を、張力を付与した状態で搬送方向に沿って搬送する搬送機構と、
    　第１モータ及び該第１モータにより第１回転軸回りに回転する第１加工部を備え、前記搬送方向における第１位置において、前記回転基準位置から前記所定回転軸回りに第１回転角度だけ回転した第１角度位置に対応する前記第１モータの回転位置にて、前記資材に第１加工を行う第１加工機構と、
    　第２モータ及び該第２モータにより第２回転軸回りに回転する第２加工部を備え、前記搬送方向における第２位置において、前記回転基準位置から前記所定回転軸回りに第２回転角度だけ回転した第２角度位置に対応する前記第２モータの回転位置にて、前記資材に第２加工を行う第２加工機構と、
    　前記張力が解除された前記資材において、前記第１加工が施された部位と前記第２加工が施された部位とが所定の位置関係となるように、第２角度位置を調整する制御部と、
    　情報を記憶するための記憶部と、
    　を有し、
    　ある吸収性物品を製造する際に、前記制御部は、前記第２角度位置を調整した後に、第１角度位置と調整後の前記第２角度位置との相対角度を特定可能な情報を記憶部に記憶し、
    　前記ある吸収性物品を製造した後に、他の吸収性物品を製造し、前記他の吸収性物品を製造した後、再度前記ある吸収性物品を製造する際に、前記制御部は、前記情報を用いて、前記第２角度位置を設定することを特徴とする吸収性物品製造装置。     A reference unit for setting a rotation reference position about a predetermined rotation axis;
    A transport mechanism that transports the material relating to the absorbent article along a transport direction in a tensioned state in order to manufacture an absorbent article;
    A first motor and a first processing unit rotated about a first rotation shaft by the first motor, wherein the first motor rotates from the reference rotation position by a first rotation angle at the first position in the transport direction. A first processing mechanism that performs first processing on the material at a rotational position of the first motor corresponding to the first angular position,
    A second motor and a second processing unit that rotates about a second rotation shaft by the second motor, and rotates by a second rotation angle around the predetermined rotation shaft from the rotation reference position at a second position in the transport direction A second processing mechanism that performs a second processing on the material at a rotational position of the second motor corresponding to the second angular position;
    A control unit configured to adjust a second angular position such that a portion subjected to the first processing and a portion subjected to the second processing have a predetermined positional relationship in the material in which the tension is released; ,
    A storage unit for storing information;
    Have
    When manufacturing a certain absorbent article, the control unit, after adjusting the second angular position, stores information capable of specifying the relative angle between the first angular position and the adjusted second angular position. Remember to
    After manufacturing the certain absorbent article, the other absorbent article is manufactured, and after the other absorbent article is manufactured, when the certain absorbent article is manufactured again, the control unit generates the information An absorbent article manufacturing apparatus characterized by setting the second angular position using the same.
PCT/JP2018/043012 2017-12-28 2018-11-21 Method of manufacturing absorbent article and device for manufacturing absorbent article WO2019130918A1 (en)

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JP2011200568A (en) * 2010-03-26 2011-10-13 Unicharm Corp Device for producing absorbing body
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