WO2013039004A1 - 連続部材の揺動供給装置 - Google Patents
連続部材の揺動供給装置 Download PDFInfo
- Publication number
- WO2013039004A1 WO2013039004A1 PCT/JP2012/072928 JP2012072928W WO2013039004A1 WO 2013039004 A1 WO2013039004 A1 WO 2013039004A1 JP 2012072928 W JP2012072928 W JP 2012072928W WO 2013039004 A1 WO2013039004 A1 WO 2013039004A1
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- WIPO (PCT)
- Prior art keywords
- sheet
- belt
- swing
- moving means
- continuous member
- Prior art date
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Classifications
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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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
- A61F13/15593—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
-
- 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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
- A61F13/15593—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
- A61F13/15609—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons the ribbons being applied in an irregular path
-
- 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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15772—Control
-
- 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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15804—Plant, e.g. involving several steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/34—Inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2555/00—Personal care
- B32B2555/02—Diapers or napkins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
- B32B37/1292—Application of adhesive selectively, e.g. in stripes, in patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
- B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
- B32B37/203—One or more of the layers being plastic
- B32B37/206—Laminating a continuous layer between two continuous plastic layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1875—Tensioning
Definitions
- the present invention relates to a swing supply device for a continuous member.
- Patent Document 1 describes an apparatus that forms a curved gather on a paper diaper by a swing mechanism using a servo motor.
- Specific swing mechanisms include a drive pulley, a driven pulley, There is described a mechanism that has a timing belt stretched over them, and drives a drive pulley according to specific control data by a servo motor, thereby swinging a guide portion locked to the timing belt.
- the guide portion is provided with a hole portion through which the elastic member is led out, and the elastic member can be arranged in a curved shape between the upper and lower sheets by drawing out the elastic member while swinging the guide portion. it can.
- the guide part that determines the rubber placement position is swung by the rotation of the servo motor
- the guide part speed, acceleration, etc. May be limited by mechanical conditions.
- the speed of the guide portion is increased by increasing the speed of the equipment or changing the arrangement shape, the acceleration increases in proportion to the square thereof, so a motor capable of outputting a large torque commensurate with the acceleration is required.
- a motor having a large torque requires a large torque to rotate the motor itself at a high speed because the inertia of the motor itself is large. As a result, it is difficult to increase the speed and acceleration of the guide unit. In the technology, it may be difficult to cope with a change in the arrangement shape of the elastic member that increases the speed of the equipment and increases the speed and acceleration of the guide portion.
- Patent Document 2 when an elastic member is introduced while being oscillated between two sheets by a oscillating mechanism using a servo motor, the speed of the sheet is added according to the curved shape of the elastic member.
- a technique is described that reduces the speed and acceleration of the guide unit by reducing the speed and moving the guide unit according to the speed of the seat, and reduces the rotation speed and acceleration of the motor to solve the above-described problems. .
- the present invention provides a continuous member swing supply device that feeds a continuous member on a belt-like sheet that is continuously conveyed while swinging in a crossing direction that intersects the flow direction of the sheet.
- the continuous member swing supply device includes a swinging portion swingable in a crossing direction, a first moving unit that swings the swinging unit by moving the swinging unit in the crossing direction, and a part of the first moving unit.
- a second moving means for moving the rocking part in the crossing direction by moving the whole in the crossing direction and a control part for controlling the first moving means and the second moving means are provided. I have.
- the continuous member swing supply device supplies the continuous member to the sheet from a lead-out portion provided in the swing portion.
- the present invention is a method for manufacturing a composite sheet in which a continuous member is fixed to a sheet in a curved shape, and includes a supply step of continuously supplying the continuous member onto a continuously conveyed sheet, In the supplying step, there is provided a composite sheet manufacturing method in which the continuous member is supplied while being swung in a direction intersecting the sheet flow direction by a continuous member swing feeding device.
- FIG. 1 is a diagram showing a state of manufacturing an elastic member (composite sheet) using the elastic member swing supply device and the device according to the first embodiment of the present invention.
- Drawing 2 is a mimetic diagram which looked at the part which supplies an elastic member using the device of a 1st embodiment from the side.
- Drawing 3 is a perspective view showing signs that the exterior body continuum (elastic sheet) of a pants type disposable diaper is manufactured using the device of a 1st embodiment.
- FIG. 4 is a graph showing an example of the amount of movement of the oscillating portion due to the rotation of the belt and the amount of movement of the oscillating portion due to the movement of the belt (the total is the amount of movement of the oscillating portion).
- FIG. 5 is a diagram showing another embodiment of the present invention.
- FIG. 6 is a diagram showing another embodiment of the present invention.
- FIG. 7 is a diagram showing another embodiment of the present invention.
- FIG. 8 is a diagram showing another embodiment of the present invention.
- FIG. 9 is a diagram showing another embodiment of the present invention.
- FIG. 10 is a diagram showing another embodiment of the present invention.
- FIG. 11 is a diagram illustrating a modification of the first embodiment.
- the swing supply device 1 for an elastic member (swing member) has an elastic member 3 placed on a belt-like sheet 2 that is continuously conveyed.
- This is a device that supplies the liquid while being swung in a direction Y that intersects the flow direction X.
- the flow direction (conveying direction) X of the belt-like sheet 2 is shown as a direction from the right side to the left side in FIG. (Conveyance direction) X is a direction substantially perpendicular to the paper surface. The same applies to the direction in which the elastic member 3 is introduced.
- the elastic member swing supply device 1 includes a belt rotating means 6 (first moving means) for rotating an endless first belt 5 stretched between a plurality of pulleys 4, and the first belt 5 is seated.
- the belt moving means 7 (second moving means) for moving in the direction Y intersecting the flow direction X of 2 is fixed to the first belt 5 and is swung in the intersecting direction Y as the first belt 5 rotates and moves.
- a swinging part 8 that moves and a control part 9 that controls the rotation and movement of the first belt 5 are provided, and the elastic member 3 is moved from the lead-out part 81 provided on the swinging part 8 to the seat 2. It is made to supply.
- the elastic member swing supply device 1 includes a belt rotating unit 6 that rotates the first belt 5 and a belt moving unit 7 that moves the first belt 5.
- the first belt 5 is an endless timing belt, and is stretched around a drive pulley 43, driven pulleys 41 and 42 provided on sliders 71 and 72, and non-movable driven pulleys 44 and 45.
- the first pulley 5 can be rotated (rotated) in both forward and reverse directions by driving the drive pulley 43 to rotate by the first servo motor 61.
- This rotation of the first belt 5 is a rotation that can occur even if the drive pulley 43 is rotated with the positions of the sliders 71 and 72 fixed and the positions of all the pulleys fixed.
- the belt rotating means 6 (first moving means) in the present embodiment is a known power transmission mechanism comprising a first servo motor 61 as a drive source and a gear combination for transmitting the rotation of the motor 61 to the drive pulley 43. 62.
- the belt moving means 7 (second moving means in the present embodiment) is means for moving the position of at least the portion of the first belt 5 where the swinging portion 8 is fixed in the direction Y intersecting the flow direction of the sheet 2. It is. As shown in FIG. 1, the belt moving means 7 in the apparatus 1 of the present embodiment determines sliders 71 and 72 in which driven pulleys 41 and 42 are rotatably provided and directions in which both sliders 71 and 72 slide. Slide guides 73 and 74, a second belt 75 connected to both sliders 71 and 72, a drive pulley 76 and driven pulleys 77 and 78 around which the second belt 75 is stretched are provided. The second belt 75 is also means for connecting the plurality of sliders 71 and 72.
- the drive pulley 76 is driven to rotate by the second servo motor 79, so that the driven pulleys 77 and 78 are driven and rotated.
- the second belt 75 and the second pulley 75 and 78 are rotated.
- the combined sliders 71 and 72 move in the direction a ′ or b ′ in the drawing.
- the second belt 75 is also preferably a timing belt.
- the belt moving means 7 includes a known power transmission mechanism 80 including a second servo motor 79 as a drive source and a gear combination for transmitting the rotation of the motor 79 to the drive pulley 76.
- the belt moving means 7 (second moving means) in the present embodiment sliders 71 and 72 are connected to driven pulleys 41 and 42 constituting a part of the belt rotating means 6 (first moving means), By moving the position of the driven pulley 41, which is a part of the belt rotating means 6 (first moving means), in the intersecting direction Y, the swinging portion 8 is moved in the intersecting direction Y and swung.
- the belt moving means 7 (second moving means) in the present embodiment includes a driving pulley 43, a first servo motor 61 (driving source), a power transmission mechanism 62, etc. in the belt rotating means 6 (first moving means). The position of is not moved.
- the swinging portion 8 is fixed to the first belt 5 and is located between the driven pulley 41 and the driven pulley 44. As shown in FIG. 2, the oscillating portion 8 has two through holes in a block-like fixed portion 82 fixed to the first belt 5, and two slide shafts inserted through the through holes, respectively. Swing along 83.
- the slide shafts 83 of the oscillating portion 8 are arranged parallel to each other and along the intersecting direction Y.
- the slide shaft 83 is an example of a slide guide that regulates the moving direction of the swinging portion 8 and the sliders 71 and 72 described above. As the slide guide, a slide rail or the like can be used instead of such a slide shaft. .
- the swinging portion 8 has an extending portion 84 extending obliquely from the fixed portion 82, and a leading portion of the elastic member 3 having a guide hole (not shown) through which the elastic member 3 is inserted at the tip portion. 81 is formed.
- the elastic member lead-out portion 81 may be provided with a guide groove or the like instead of the guide hole.
- FIG. 1 shows only one elastic member 3 led out from the oscillating portion 8, but the elastic member 3 oscillated by one oscillating portion 8 may be one or plural.
- the swinging portion 8 is preferably provided with guide holes or guide grooves equal to the number of elastic members to be swung.
- the first and second servo motors 61 and 79 can be electrically controlled in rotation and stop, rotation direction, rotation position, speed, and the like, respectively.
- the moving part 8 can be swung in a desired pattern based on a reference signal that periodically changes for each product.
- the control unit 9 includes a servo amplifier 91 that controls the first servo motor 61 that rotates the first belt 5, a servo amplifier 92 that controls the second servo motor 79 that moves the first belt 5, And an arithmetic processing unit 93.
- the arithmetic processing unit 93 emits from a belt rotation pattern and a belt movement pattern set in advance, and a rotary encoder provided in the facility, for example, a rotary encoder connected to a rotary cutter for cutting products one by one.
- the operation control signals corresponding to the respective patterns are output to the servo amplifiers 91 and 92 based on the reference signal 95 that is continuously changed and reset every time one product is manufactured.
- the product is, for example, a product of a composite sheet obtained using the device 1 or an absorbent article (such as a disposable diaper 10) produced by introducing a composite sheet obtained by the device 1 into a production line. .
- the belt rotation pattern and the belt movement pattern may be input to the arithmetic processing unit 93 from an operation unit (not shown), or input via a communication line or via a storage medium such as a USB memory. good. Further, the rotation pattern of the belt and the movement pattern of the belt may be input to the arithmetic processing unit 93, or the swing pattern of the swing part (combination of the belt rotation pattern and the belt movement pattern). Pattern) and a belt rotation pattern and a belt movement pattern may be calculated from the swing pattern according to a separately input distribution law or a preset distribution law.
- the reference signal may be input to the arithmetic processing unit 93 that is generated by a controller that controls the equipment where the swing supply device 1 is installed, or may be generated inside the arithmetic processing unit 93.
- arithmetic processing unit 93 a programmable logic controller (PLC) or a commercially available personal computer with various interfaces added can be used.
- PLC programmable logic controller
- the elastic member 3 is placed on the belt-like sheet 2 that is continuously conveyed by using the elastic member swing supply device 1 described above.
- the elastic member 3 ′ is continuously fed while being swung in a direction intersecting the flow direction of 2, and the elastic member 3 ′ is similar to the above-described elastic member oscillating supply device on the belt-like sheet 2 ′ that is continuously conveyed.
- a second swing supply device having a configuration (the swinging portion 8 ′ and the first belt 5 ′ to which the swinging portion 8 ′ is fixed are shown in FIG.
- the elastic member oscillating supply device 1 and the second oscillating supply device are installed so as to face each other across the common contact surface S of the rolls 20 and 20.
- the second oscillating supply device may also include an arithmetic processing unit similar to the arithmetic processing unit 93 of the elastic member oscillating supply device 1, or the oscillating supply device 1 and the second oscillating supply device. Both may be controlled by one arithmetic processing unit 93.
- an adhesive is applied to the sheet 2 before supplying the elastic member 3 by an adhesive coating device (not shown), and also illustrated on the sheet 2 ′ before supplying the elastic member 3 ′. Apply the adhesive with the adhesive application device that does not.
- Each of the adhesive coating apparatuses may be a non-contact type coating apparatus or a contact type coating apparatus.
- An apparatus and method for applying an adhesive to the sheet 2 and / or the sheet 2 ′, a coating pattern, and the like are applied between the sheets 2 and 2 ′ by elastic members 3 and 3 ′ by swinging the elastic members. What can be fixed so that the predetermined curve shape can be maintained can be used without particular limitation.
- the elastic member 3 is preferably introduced in a stretched state on the sheet 2 or between the sheets 2 and 2 ′, and the elastic member 3 ′ can be introduced in a stretched state on the sheet 2 ′ or between the sheets 2 and 2 ′. preferable.
- the sheet 2 and the sheet 2 ′ coated with the adhesive may be overlapped and integrated.
- the elastic member 3 ′ may be supplied onto the sheet 2 ′ not coated with the adhesive, and then the sheet 2 ′ and the sheet 2 coated with the adhesive may be overlapped and integrated.
- the adhesive instead of applying the adhesive to both the sheet 2 and the sheet 2 ′, the adhesive may be applied to only one of them.
- the entire surface is applied to one sheet, and the adhesive is intermittently applied only to a portion where a particularly strong adhesive force is required for the other sheet.
- the coating pattern of the adhesive can be made different between the sheet and the other sheet.
- the pants-type disposable diaper 10 can be manufactured in the same manner as a known manufacturing method of a so-called cross-flow type pants-type disposable diaper, except that the exterior body continuum 11 obtained as described above is used.
- the absorbent body 12 is disposed intermittently and sequentially, and the absorbent body 12 is disposed in the exterior body continuum 11.
- Side opening portions 15 and 15 are formed in the opening forming step of forming the opening 13 for forming the leg opening, the folding process of folding the continuous body 14 after the opening is formed in the width direction, and the folded continuous body.
- the mold disposable diaper 10 can be obtained.
- the absorbent main body 12 in the pants-type disposable diaper 10 includes a liquid-permeable surface sheet that forms a skin contact surface, a liquid-impermeable or water-repellent leak-proof sheet, and a liquid disposed therebetween. It is provided with a retentive absorber (both not shown).
- reference numeral 13a denotes a trim removed to form the opening 13 for forming the leg opening.
- the elastic members 17 and 17 for forming the waist gathers at the peripheral edge of the waist opening are swung in the flow direction of the sheets 2 and 2 ′. It introduces without letting.
- the stretchable sheet produced in the present invention may have the elastic member 17 introduced without swinging in addition to the elastic member 3 introduced while swinging.
- the said opening formation process may be performed before or simultaneously with the arrangement
- the cycle for manufacturing one product is taken on the horizontal axis, and the movement pattern of the oscillating unit 8, that is, the oscillating pattern S, and the movement pattern of the oscillating unit 8 by the rotation of the first belt 5, that is, rotation.
- a pattern S1 and a movement pattern of the swinging portion 8 by the movement of the first belt 5 generated by the second moving means, that is, the movement pattern S2 are shown.
- the swing pattern S required by the arrangement shape of the elastic member 3 on the product is a combination of the rotation pattern S1 and the movement pattern S2, and therefore the first (rotation) and second (movement) servos. Compared with the swing pattern S, the movement amount, speed, and acceleration by the motor can be reduced.
- how S1 and S2 are distributed may be determined so that the rotation pattern S1 and the movement pattern S2 are 50% of the swing pattern S, but the capacity and inertia of the first and second servo motors,
- the speed and acceleration at which the servomotor can rotate differ depending on the inertia of components such as pulleys and guides connected to each. Therefore, in this apparatus, by changing the balance between the rotation pattern S1 and the movement pattern S2, for example, it is possible to efficiently increase the speed of the apparatus by matching the load factor of each servo motor.
- the rotation pattern S1 and the movement pattern S2 are distributed to 50% of the swing pattern S, or the rotation pattern S1 and the movement pattern S2 are distributed so that the load factors of the respective servomotors are matched. Can be mentioned.
- the driving pulley 43 is rotated in the direction of the arrow b to move the first belt 5 in the opposite direction.
- the sliders 71 and 72 are moved in the direction of the arrow b ′ to move the first belt 5 (particularly, the portion where the swinging portion 8 is fixed) in the direction of the arrow B.
- the elastic member 3 ′ draws a curve of a substantially target shape with the elastic member 3 with respect to a straight line along the longitudinal direction of the stretchable sheet 11.
- the configuration can be the same as that of the swing supply device 1 for the elastic member except that the swing portion is swung.
- S1 and S2 are distributed at a constant ratio with respect to the swing pattern S. However, the ratio may be changed within a period in order to efficiently share the load factor.
- the first moving means in the present invention is a belt rotation that moves the swinging part by rotating a belt to which the swinging part is fixed, like the first moving means 6A in the apparatus shown in FIG. It is not limited to means. Even when the first moving means is not the belt rotating means, the swing pattern S of the swinging portion is controlled to be a combination of the moving pattern S1 by the first moving means and the moving pattern S2 by the second moving means. Producing a composite sheet while this is a preferred embodiment. Similarly, the first movement is performed so that the load factor of the servo motor or linear motor as the driving source of the first moving means matches the load factor of the servo motor or linear motor as the driving source of the second moving means. It is also preferable to distribute the movement pattern S1 by the means and the movement pattern S2 by the second movement means.
- the reciprocating motion (oscillation) of the oscillating portion 8 is caused to rotate the first belt 5.
- the movement speed (rotation) of each drive source is realized by the cooperation between the first belt 5 and the first belt 5.
- Speed), torque and the like can be reduced. For this reason, it is possible to increase the moving speed and acceleration of the oscillating portion while suppressing the load on the driving source, and thus it is easier to increase the speed of the equipment and change the curved shape in which the elastic member is arranged. .
- the belt rotating means 6 and the belt moving means 7 are driven by servo motors 61 and 79 because the position of the swinging portion 8 can be controlled with higher accuracy.
- the belt moving means 7 includes a plurality of sliders 71 and 72 having driven pulleys 41 and 42 that engage with the first belt 5, and a drive source that moves the positions of the sliders 71 and 72.
- a drive source that moves the positions of the sliders 71 and 72.
- Servo motor 79 etc. is preferable from the viewpoint of minimizing the equipment that must be moved in order to move the first belt 5 and enabling the moving speed and acceleration of the oscillating portion to be further increased. .
- the drive source for moving the positions of the sliders 71 and 72 is a servo motor from the viewpoint of controlling the position of the swinging portion 8 with higher accuracy.
- a linear motor that can be positioned from the viewpoint of simplifying the mechanism.
- the drive source for moving the plurality of sliders 71 and 72 may be provided with one drive source (servotor or the like) for the plurality of sliders as in this embodiment, or a second embodiment described later. As in the embodiment, one slider may be provided for each slider.
- the second belt 75 coupled to the plurality of sliders 71 and 72 is driven by the servo motor 79 so that the movements of both the sliders 71 and 72 are interlocked. .
- the swinging of the swinging portion 8 can be controlled with high accuracy.
- a servo motor 79 is also installed in the pulley 77 and the belt is moved by a plurality of servo motors in combination with the servo motor 79 of the pulley 76, for example, the inertia and friction resistance of the sliders 71 and 72.
- FIG. 11 is a view showing a modification of the first embodiment, and the same components as those in the apparatus shown in FIG.
- the apparatus shown in FIG. 11 has a servo motor 79 that drives the pulley 77, and the configuration of the apparatus shown in FIG. 1 is the same except that the control unit 9 rotates the pulley 77 in the same pattern as the pulley 76. Have.
- the sliding direction of the slider 71 is set to the swinging direction (Y
- the slide direction of the slider 72 is arranged in a direction substantially perpendicular to the swing direction of the swing portion 8.
- the elastic member swing supply device of the second embodiment moves the positions of a plurality of sliders 71 and 72 to move the first belt 5 (particularly the portion to which the swinging portion 8 is fixed).
- slider driving means 7A and 7B provided separately for the sliders 71 and 72 are provided.
- Each of the slider driving means 7A and 7B includes an endless second belt 75 fixed to the slider, and a driving pulley 76 and a driven pulley 77 around which the second belt 75 is stretched. Then, the drive pulley 76 is rotationally driven by the second servo motor 79, whereby the second belt 75 and the sliders 71 and 72 coupled thereto move in the direction a 'or b' in the drawing.
- the arithmetic processing unit 93 of the control unit 9 outputs an operation control signal that causes the servo amplifiers 92 and 94 to operate the second servo motor 79 in synchronization with each other.
- the movement of 72 is interlocked. That is, when one slider 71 moves in the a ′ direction, the other slider 72 also moves at the same speed in the a ′ direction. When one slider 71 moves in the b ′ direction, the other slider 72 also moves to b ′. Move in the direction at the same speed.
- the load per unit of the second servo motor 79 can be reduced, and the speed of the belt moving means can be increased.
- the 2nd belt 75 can be shortened, the meandering and bending of a belt can be reduced.
- the elastic member swing supply device of the third embodiment moves the positions of a plurality of sliders 71 and 72 to move the first belt 5 (particularly, the portion to which the swinging portion 8 is fixed).
- the belt moving means (second moving means) for moving the position in the Y direction includes slider drive means 7A and 7B provided separately for the sliders 71 and 72, respectively.
- the sliding direction of the slider 71 by one slider driving means 7A and the sliding direction of the slider 72 by the other slider driving means 7B are both crossing directions (Y direction) intersecting the sheet flow direction. .
- the belt rotating means 6 (first moving means) in the third embodiment is also a known combination of a first servo motor 61 as a driving source and a gear combination for transmitting the rotation of the motor 61 to the driving pulley 43.
- a power transmission mechanism is provided.
- the slider driving means 7A and 7B constitute belt moving means (second moving means). Also in the third embodiment, the movements of both sliders 71 and 72 are interlocked by the same method as in the second embodiment. In addition to the same effects as those of the second embodiment compared to the first embodiment, space saving in the sheet flow direction is possible.
- the elastic member swing supply device of the fourth embodiment is arranged on a moving table 70 that moves in a crossing direction Y that intersects the flow direction of the sheet 2 along the slide guide 73.
- a plurality of driven pulleys 41 and 42 around which the belt 5 is stretched are rotatably provided, and the first belt 5 is rotationally driven by a driving pulley 43 disposed beside the moving table 70.
- the elastic member swing supply device of the fifth embodiment is arranged on the movable table 70 that moves in the crossing direction Y that intersects the flow direction of the sheet 2 along the slide guide 73.
- a plurality of pulleys 41 and 43 around which the belt 5 is stretched, and a servo motor 61 that drives the pulley (drive pulley) 43 and rotates the first belt 5 are provided.
- the belt moving means 7C (second moving means) in the fourth and fifth embodiments includes the moving table 70 and the third servo motor 79 'that moves the moving table 70 in the Y direction.
- the third servo motor The rotational force of 79 ′ is transmitted to the ball screw 80 ′ by an arbitrary power transmission mechanism such as a pulley or a gear, and the ball screw 80 ′ rotates in a state of being screwed with a female screw portion (not shown) provided on the moving table 70.
- the movable table 70 moves in the Y direction.
- the movement of the position of the first belt 5 due to the movement of the movable table 70 and the rotation of the first belt 5 cooperate to swing the swinging portion 8. The same effect as the first embodiment can be obtained.
- the belt moving means By using a ball screw as the belt moving means, the belt can be moved with higher accuracy.
- the first belt is placed on the moving table 70 that moves in the crossing direction Y crossing the flow direction of the sheet 2 by the linear motor 85.
- a plurality of pulleys 41, 43 on which 5 is stretched and a servo motor 61 for driving the drive pulley 43 and rotating the first belt 5 are provided.
- the belt rotating means 6 (first moving means) driven by the servo motor 61 and the belt moving means 7D (second moving means) for moving the position of the first belt 5 by the linear motor 85 cooperate, By oscillating the oscillating portion 8, the same effect as in the first embodiment can be obtained. Further, the mechanism can be made simple by using a linear motor, and the number of parts can be reduced, so that maintenance work can be reduced.
- linear motor a commercially available linear motor having a mover having a coil and a stator having a magnet can be used.
- the mover is provided on the back surface of the moving table 70, while the stator is mounted on the moving table. 70 is disposed between the slide guides 73 facing the back surface.
- reference numerals 85 'and 87' denote movable cables for supplying current to the coils of the linear motor.
- a linear motor 85 moves the moving member 70 in a crossing direction Y that intersects the flow direction of the sheet 2.
- a swinging portion 8 is provided that is moved by a linear motor 87 in an intersecting direction Y that intersects the flow direction of the sheet 2.
- the first moving means 6A is configured such that the second linear motor 87 that swings the swinging portion 8 on the moving base 70 and the sliding direction of the swinging portion 8 on the moving base 70 in the Y direction in the figure.
- the second moving means 7D includes a first linear motor 85 that moves the movable table 70 and a slide guide that regulates the sliding direction of the movable table 70 in the Y direction in the drawing. (Not shown).
- the swinging portion 8 when the swinging portion 8 is moved from one end E1 to the other end E2 side of the swinging range (amplitude), the swinging portion 8 is moved by the second linear motor 87.
- the moving table 70 is moved in the a direction along the intersecting direction on the moving table 70, and the moving table 70 itself is moved in the a ′ direction along the intersecting direction Y by the first linear motor 85.
- the second linear motor 87 causes the swinging portion 8 to move on the moving table 70.
- the moving table 70 itself is moved in the b ′ direction along the intersecting direction Y by the first linear motor 85.
- the reciprocating motion (swing) of the swing portion 8 is the cooperation of the first and second linear motors. Since it is realized by operation, the movement speed and acceleration of both motors can be reduced, and the speed can be increased as compared with the case where the oscillating portion 8 is moved by a single linear motor. Further, similarly to the sixth embodiment, the mechanism can be made simple by using a linear motor, and the number of parts can be reduced, so that maintenance work can be reduced.
- the elastic member supplied as a continuous member is a thread-like or narrow belt-like elastic member (thread rubber, flat rubber, etc.), and the rubber thread is fixed in a stretched state on one side of the narrow sheet-like member or between sheets. It may be a composite elastic member or a thin elastic film.
- the continuous member is not limited to an elastic member, and may be a thread-like member having no elasticity (color yarn or the like), a thin sheet-like member having no elasticity, or the like.
- the width of the narrow sheet-like member is preferably at least equal to or less than the width of the belt-like sheet supplied while being oscillated, more preferably 10 to 50 mm, and still more preferably 15 to 30 mm.
- the composite sheet manufactured by the method for manufacturing a composite sheet of the present invention may be a composite sheet that does not have stretchability.
- the stretchable sheet may be composed of only one sheet and one or more elastic members fixed to one side of the sheet. Further, the stretchable sheet may be one in which only one elastic member is fixed. When obtaining a stretchable sheet in which a plurality of elastic members are fixed between sheets, all of the elastic members may be introduced so as to draw parallel curves.
- the underpants type wearing article when manufacturing the exterior body continuous body of an underpants type wearing article as an elastic sheet, the underpants type wearing article may be a shorts type napkin etc. instead of a disposable diaper.
- the curved shapes of the first and second elastic members are not limited to the curved shapes as shown in FIG. 2 and FIG. 3, respectively, and may be pure sinusoidal shapes, for example.
- the example in which one elastic member 3 is brought into contact with the sheet 2 first and the other elastic member 3 ′ is brought into contact with the first sheet 2 ′ has been described. It is also possible to introduce the members 3, 3 'together so that they first come into contact with the same sheet.
- the present invention further discloses the following swing feeding device and composite sheet manufacturing method.
- a continuous member swing supply device that supplies a continuous member while swinging in a crossing direction intersecting the flow direction of the sheet on a continuously conveyed belt-like sheet, A swinging part swingable in the intersecting direction, a first moving means for swinging by moving the swinging part in the intersecting direction, and a part or all of the first moving means is moved in the intersecting direction
- a second moving means for moving the swinging part in the crossing direction to swing, and a control unit for controlling the first moving means and the second moving means
- a continuous member swing supply device configured to supply the continuous member to the sheet from a lead-out portion provided in the swing portion.
- each of the first moving unit and the second moving unit includes a drive source including one or more servo motors or linear motors.
- the control unit controls the first moving unit and the second moving unit in accordance with a reference signal to control the swing of the swing unit. Any one of the items ⁇ 1> to ⁇ 3>
- the first moving means includes an endless belt to which the swinging portion is fixed, a plurality of pulleys engaged with the belt, and one connected to any one or more of the pulleys.
- the continuous member swing supply device according to any one of the above items ⁇ 1> to ⁇ 4>, comprising the above drive source.
- the second moving means includes a plurality of sliders each having the pulley engaged with the belt, a means for connecting the plurality of sliders, and one or more moving the plurality of connected sliders.
- the swing supply device for a continuous member according to ⁇ 5> comprising a drive source.
- the continuous member swing supply according to ⁇ 6> wherein the means for connecting the plurality of sliders is driven by the servo motor so that movement of the plurality of sliders is interlocked.
- apparatus ⁇ 8>
- the slide direction of one slider is made parallel to the swing direction of the swing portion, while the slide direction of the other slider is a direction substantially orthogonal to the swing direction of the swing portion. Or the swing supply apparatus of the continuous member as described in ⁇ 7>.
- the continuous member according to ⁇ 5> wherein the second moving unit includes a plurality of sliders each having the pulley engaged with the belt, and one or more drive sources that respectively move the positions of the sliders. Swing supply device.
- the second moving unit includes a slider driving unit provided separately for each slider, and each of the slider driving units includes an endless second belt fixed to the slider, and the slider driving unit.
- the continuous member swing supply device according to ⁇ 9> further including a driving pulley and a driven pulley over which the second belt is stretched.
- the second moving means includes slider driving means provided separately for each slider, and the slider sliding direction by one slider driving means and the slider sliding direction by the other slider driving means
- the continuous member swing supply device according to the above ⁇ 9>, wherein the swinging supply device is in a crossing direction (Y direction) crossing the flow direction of the sheet.
- the first moving unit rotates a belt rotating unit that rotates an endless belt stretched between a plurality of pulleys, and the second moving unit intersects the belt with the flow direction of the sheet.
- the belt moving means for moving in a crossing direction wherein the swinging part swings in the crossing direction as the belt is rotated and moved, according to any one of the above items ⁇ 1> to ⁇ 4>. Swing supply device for continuous member.
- the second moving unit includes a moving table that moves along a slide guide in an intersecting direction that intersects the flow direction of the sheet, and a plurality of driven members on which the belt is stretched.
- the second moving unit includes a moving table that moves along a slide guide in an intersecting direction that intersects the flow direction of the sheet, and a driven pulley on which the belt is stretched on the moving table;
- ⁇ 15> The continuous member swing supply device according to ⁇ 13> or ⁇ 14>, wherein a ball screw is used as the second moving unit.
- the second moving means is a belt moving means for moving the position of the belt by a linear motor, and the belt rotating means and the belt moving means cooperate to swing the swinging portion.
- the swing supply device for a continuous member according to ⁇ 12>.
- the swinging portion has two through holes in a block-like fixed portion fixed to the belt, and swings along two slide shafts respectively inserted into the through holes. 1> to ⁇ 16>, wherein the continuous member rocking and feeding device is provided.
- the oscillating portion has an extending portion extending obliquely from the fixed portion, and the leading portion having the guide hole or the guide groove through which the continuous member is inserted is formed at a tip portion thereof.
- the continuous member swing supply device according to any one of ⁇ 1> to ⁇ 17>.
- the first moving means is means for moving the swinging portion in an intersecting direction as the sheet flow direction by the second linear motor 87, and the second moving means is the first linear motor.
- the motor 85 moves the first moving means in a crossing direction crossing the sheet flow direction, and the first linear motor 85 and the second linear motor 87 cooperate to move the swinging.
- the continuous member swing supply device according to any one of the above items ⁇ 1> to ⁇ 4>, wherein the portion 8 is swung.
- the first continuous member is placed on the first belt-like sheet continuously conveyed using the first swing feeding device, and the flow direction of the first sheet And continuously supplying the second continuous member on the belt-like second sheet that is continuously conveyed, with the same configuration as the first swing supply device.
- the first swing supply device 1 and the second swing supply device include the first and second continuous members and the first and second sheets, and the continuous members between the sheets.
- the method for producing a composite sheet according to ⁇ 21> wherein the composite sheet is installed so as to face each other across a common contact surface S of a pair of rolls that are sandwiched and pressed.
- an adhesive is applied by an adhesive coating device, and the second before supplying the second continuous member.
- the second swing supply device may be configured such that the second continuous member draws a curve of a substantially target shape with the first continuous member with respect to a straight line along a longitudinal direction of the composite sheet.
- the composite sheet is manufactured while controlling the swing pattern S of the swing portion to be a combination of the movement pattern S1 by the first moving means and the movement pattern S2 by the second moving means ⁇ 20
- the swing pattern S obtained by the arrangement shape of the continuous member on the composite sheet is a combination of the rotation pan S1 and the movement pattern S2, and any one of the above ⁇ 20> to ⁇ 25> A method for producing a composite sheet.
- the drive source of the first moving means and the second moving means is a servo motor, and the movement pattern S1 by the first moving means and the movement pattern S2 by the second moving means are distributed so that the load factors of both servo motors match.
- a method for producing a pants-type disposable diaper using the composite sheet obtained by the method for producing a composite sheet according to any one of ⁇ 20> to ⁇ 29> as an exterior body continuum After the manufacturing process of the stretchable sheet to obtain the exterior body continuum, the absorbent body placement step of intermittently placing and fixing the absorbent body sequentially, the opening for forming the leg opening portion in the exterior body continuum Forming step, two-folding step of folding the outer body continuous body after the opening is formed in two in the width direction, forming the side seal portion on the folded outer body continuous body, and a diaper continuous body formed with the side seal portion
- the manufacturing method of a pants type disposable diaper which comprises the isolation
- the speed and acceleration of the swing portion can be increased while suppressing the speed and acceleration of the motor. Therefore, for example, it is possible to increase the speed of manufacturing equipment for various products using the continuous member, and to increase the speed and acceleration of the swinging portion caused by changing the curved shape in which the continuous member is arranged.
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Abstract
Description
例えば、特許文献1には、サーボモータを用いた揺動機構により、紙オムツに曲線状のギャザーを形成する装置が記載されており、具体的な揺動機構としては、駆動プーリ、従動プーリ、これらに掛け渡されたタイミングベルトを有し、サーボモータにより、駆動プーリを、特定の制御データに従って駆動させることで、タイミングベルトに係止されたガイド部を揺動させる機構が記載されている。そのガイド部には、弾性部材を導出する孔部が設けられており、該ガイド部を揺動させながら弾性部材を導出することで、弾性部材を上下のシート間に曲線状に配置することができる。
本発明の第1実施形態に係る弾性部材(揺動部材)の揺動供給装置1は、図1に示すように、連続搬送される帯状のシート上2に、弾性部材3を、該シート2の流れ方向Xと交差する方向Yに揺動させながら供給する装置である。図1においては、弾性部材3の揺動の態様を示すために、帯状のシート2の流れ方向(搬送方向)Xを図1の右側から左側に向かう方向として示してあるが、実際の流れ方向(搬送方向)Xは、紙面に対して略垂直な方向である。また、弾性部材3の導入方向についても同様である。
弾性部材の揺動供給装置1は、複数のプーリ4間に掛け渡された無端状の第1ベルト5を回動させるベルト回動手段6(第1移動手段)、該第1ベルト5をシート2の流れ方向Xと交差する方向Yに移動させるベルト移動手段7(第2移動手段)、第1ベルト5に固定され、第1ベルト5の回動と移動に伴い、前記交差方向Yに揺動する揺動部8、及び該第1ベルト5の回動と移動を制御する制御部9を備えており、揺動部8に設けられた導出部81からシート2に対して弾性部材3を供給するようになされている。
第1ベルト5は、無端状のタイミングベルトであり、駆動プーリ43、スライダ71,72上に設けられた従動プーリ41,42、及び非可動式の従動プーリ44,45に掛け渡されている。そして、駆動プーリ43を、第1サーボモータ61により回転駆動することで、第1ベルト5を正逆両方向に回転(回動)させることができる。この第1ベルト5の回動は、仮にスライダ71,72の位置を固定し、総てのプーリの位置を固定した状態下に、駆動プーリ43を回転させても生じ得る回動である。
本実施形態におけるベルト回動手段6(第1移動手段)は、駆動源としての第1サーボモータ61及び該モータ61の回転を駆動プーリ43に伝達するギアの組み合わせ等からなる公知の動力伝達機構62を備えている。
ベルト移動手段7は、駆動源としての第2サーボモータ79及び該モータ79の回転を駆動プーリ76に伝達するギアの組み合わせ等からなる公知の動力伝達機構80を備えている。
具体的には、制御部9は、第1ベルト5を回転させる第1サーボモータ61を制御するサーボアンプ91と、第1ベルト5を移動させる第2サーボモータ79を制御するサーボアンプ92と、演算処理部93とを備えている。
演算処理部93は、予め設定したベルトの回動パターンとベルトの移動パターンと、設備内に設けられたロータリーエンコーダ、例えば製品を1枚ずつに切断するロータリーカッター等に接続されたロータリーエンコーダから発せられる連続的に変化し、製品1枚を製造する度にリセットされる基準信号95に基づき、それぞれのパターンに応じた運転制御信号をサーボアンプ91,92に対して出力する。前記製品とは、例えば、本装置1を用いて得られる複合シートや、本装置1で得られる複合シートを製造ラインに導入して製造される吸収性物品(使い捨ておむつ10等)の製品である。
本実施形態の製造方法においては、図2及び図3に示すように、連続搬送される帯状のシート2上に、弾性部材3を、上述した弾性部材の揺動供給装置1を用いて、シート2の流れ方向に交差する方向に揺動させながら連続的に供給すると共に、連続搬送される帯状のシート2’上に、弾性部材3’を、上述した弾性部材の揺動供給装置と同様の構成を有する第2の揺動供給装置(揺動部8’及びそれが固定された第1ベルト5’を図2に図示)を用いて、シート2’の流れ方向に交差する方向に揺動させながら連続的に供給する(供給工程)。そして、弾性部材3,3’及び上下のシート2,2’を、シート2,2’間に弾性部材3,3’を挟んだ状態で、一対のロール20,20により挟圧して一体化させること(一体化工程)により、伸縮性シート11として、パンツ型使い捨ておむつ10の外装体連続体11が得られる。
弾性部材の揺動供給装置1と第2の揺動供給装置とは、ロール20,20の共通接面Sを挟んで相対向するように設置されることが好ましい。第2の揺動供給装置も、弾性部材の揺動供給装置1の演算処理部93と同様の演算処理部を備えていても良いし、揺動供給装置1と第2の揺動供給装置の双方を1台の演算処理部93で制御しても良い。
また、図中13aは、レッグ開口部形成用の開口13を形成するために除去したトリムである。
また、図3に示す例においては、伸縮性シートの製造工程において、ウエスト開口部の周縁部にウエストギャザーを形成するための弾性部材17,17を、シート2,2’の流れ方向に揺動させることなく導入している。このように、本発明で製造する伸縮性シートは、揺動しつつ導入された弾性部材3に加えて、揺動することなく導入された弾性部材17を有するものであっても良い。また、前記の開口形成工程は、前記の吸収性本体の配置工程の前に行っても同時に行っても良い。
第2の弾性部材の揺動供給装置は、図3に示すように、伸縮性シート11の長手方向に沿う直線に対して、弾性部材3’が、弾性部材3と略対象形状の曲線を描くように揺動部を揺動させる以外は、弾性部材の揺動供給装置1と同様の構成とすることができる。
また、図4では揺動パターンSに対し、S1、S2を一定の比率で分配しているが、効率的に負荷率を分担するために、周期内で比率を変えても良い。
なお、複数のスライダ71,72を移動させる駆動源は、本実施形態のように、複数のスライダに対して一つの駆動源(サーボータ等)が設けられていても良いし、後述する第2実施形態のように、一つのスライダ毎に一つ設けられていても良い。
また、図11に示すように、プーリ77にもサーボモータ79を設置し、ベルト移動をプーリ76のサーボモータ79と合わせて複数のサーボモータで行う場合、例えばスライダ71と72の慣性や摩擦抵抗が異なる場合であっても、スライダ71とスライダ72が機械的に連結されているため、高精度にベルトの移動を実施することが可能である。
図11は、第1実施形態の変形例を示す図で、図1に示す装置と同様の構成要素には同一の符号を付してある。図11に示す装置は、プーリ77を駆動するサーボモータ79を有し、制御部9により、プーリ77をプーリ76と同様のパターンで回転させるようにした以外は、図1に示す装置の構成を有する。
このことにより、第2のサーボモータ79の1台あたりの負荷を低減することができるため、ベルト移動手段の高速化が可能になる。また、第2ベルト75を短くすることができるため、ベルトの蛇行や撓みを低減可能である。
第3実施形態においても、第2実施形態と同様の方法により、両スライダ71,72の移動を連動させる。第1実施形態と比べ第2実施形態と同様な効果が得られる他、シート流れ方向の省スペース化が可能である。
第5実施形態の弾性部材の揺動供給装置は、図8に示すように、スライドガイド73に沿って、シート2の流れ方向と交差する交差方向Yに移動する移動台70上に、第1ベルト5が掛け渡された複数のプーリ41,43と、プーリ(駆動プーリ)43を駆動し、第1ベルト5を回転させるサーボモータ61が設けられている。
第4及び第5実施形態においても、移動台70の移動による第1ベルト5の位置の移動と、第1ベルト5の回動とを協働させて揺動部8を揺動させることにより、第1実施形態と同様の効果が得られる。ベルト移動手段にボールネジを用いることで、より高精度にベルトの移動を行うことが可能になる。
また、連続部材は、弾性部材でなくても良いので、本発明の複合シートの製造方法で製造する複合シートは、伸縮性を有しない複合シートであっても良い。
また、上述した実施形態においては、一方の弾性部材3が最初にシート2と接触し、他方の弾性部材3’が最初のシート2’と接触するように導入する例を示したが、両弾性部材3,3’が共に同じシートに対して最初に接触するように導入することもできる。
前記交差方向に揺動可能な揺動部と、前記揺動部を前記交差方向に移動させて揺動させる第1移動手段と、該第1移動手段の一部又は全体を前記交差方向に移動させることで前記揺動部を前記交差方向に移動させて揺動させる第2移動手段と、前記第1移動手段及び前記第2移動手段を制御する制御部とを備えており、
前記揺動部に設けられた導出部から前記シートに対して前記連続部材を供給するようになされている連続部材の揺動供給装置。
<2> 前記第2移動手段は、前記第1移動手段に連結されている前記<1>記載の連続部材の揺動供給装置。
<3> 前記第1移動手段及び前記第2移動手段は、それぞれ1つ以上のサーボモータ又はリニアモータからなる駆動源を有する前記<1>又は<2>記載の連続部材の揺動供給装置。
<4> 前記制御部は、基準信号に応じて、前記第1移動手段と前記第2移動手段を制御し、前記揺動部の揺動を制御する、前記<1>~<3>の何れか1に記載の連続部材の揺動供給装置。
<5> 前記第1移動手段は、前記揺動部を固定された無端状のベルトと、前記ベルトと係合する複数のプーリと、前記プーリのうち何れか一つ以上に連結された一つ以上の駆動源を備える前記<1>~<4>の何れか1に記載の連続部材の揺動供給装置。
<7> 前記複数のスライダを連結する前記手段を、前記サーボモータによって駆動することで、前記複数のスライダの移動が連動するようになされている、前記<6>記載の連続部材の揺動供給装置。
<8> 一つのスライダのスライド方向を前記揺動部の揺動方向と平行とする一方、他のスライダのスライド方向を前記揺動部の揺動方向と略直交する方向としてある前記<6>又は<7>記載の連続部材の揺動供給装置。
<9> 前記第2移動手段は、前記ベルトと係合する前記プーリをそれぞれ有する複数のスライダと、前記スライダの位置をそれぞれ移動させる1つ以上の駆動源を備える前記<5>記載の連続部材の揺動供給装置。
<10> 前記第2移動手段として、前記スライダ毎に別個に設けられたスライダ駆動手段を備えており、該スライダ駆動手段は、それぞれ、前記スライダに固定された無端状の第2ベルトと、該第2ベルトが掛け渡された駆動プーリ及び従動プーリとを備えている、前記<9>記載の連続部材の揺動供給装置。
<12> 前記第1移動手段が、複数のプーリ間に掛け渡された無端状のベルトを回動させるベルト回動手段、前記第2移動手段が、前記ベルトを前記シートの流れ方向と交差する交差方向に移動させるベルト移動手段であり、前記揺動部は、前記ベルトの回動と移動に伴い、前記交差方向に揺動する、前記<1>~<4>の何れか1に記載の連続部材の揺動供給装置。
<13> 前記第2移動手段は、スライドガイドに沿って、前記シートの流れ方向と交差する交差方向に移動する移動台を備え、該移動台上に、前記ベルトが掛け渡された複数の従動プーリが設けられている前記<12>記載の連続部材の揺動供給装置。
<14> 前記第2移動手段は、スライドガイドに沿って、前記シートの流れ方向と交差する交差方向に移動する移動台を備え、該移動台上に、前記ベルトが掛け渡された従動プーリ及び駆動プーリが設けられている前記<12>記載の連続部材の揺動供給装置。
<15> 前記第2移動手段にボールネジを用いる前記<13>又は<14>に記載の連続部材の揺動供給装置。
<17> 前記揺動部は、前記ベルトに固定されたブロック状の固定部分に2つの貫通孔を有し、該貫通孔にそれぞれ挿通された2本のスライドシャフトに沿って揺動する前記<1>~<16>の何れか1に記載の連続部材の揺動供給装置。
<18> 前記揺動部は、前記固定部分から斜めに延びる延出部分を有しており、その先端部に、前記連続部材が挿通されるガイド孔又はガイド溝を有する前記導出部が形成されている前記<1>~<17>の何れか1に記載の連続部材の揺動供給装置。
<19> 前記第1移動手段が、第2のリニアモータ87によって、前記揺動部を前記シートの流れ方向とする交差方向に移動させる手段であり、前記第2移動手段が、第1のリニアモータ85によって、該第1移動手段を前記シートの流れ方向と交差する交差方向に移動させる手段であり、第1のリニアモータ85と第2のリニアモータ87とを協働させて、前記揺動部8を揺動させる前記<1>~<4>の何れか1に記載の連続部材の揺動供給装置。
<20> シートに連続部材が曲線状に固定されている複合シートの製造方法であって、
連続搬送されるシート上に前記連続部材を連続的に供給する供給工程を備えており、
前記供給工程において、前記連続部材を、前記<1>~<19>の何れか1に記載の連続部材の揺動供給装置により、前記シートの流れ方向に交差する方向に揺動させながら供給する、複合シートの製造方法。
<22> 前記第1の揺動供給装置1と前記第2の揺動供給装置とは、前記第1及び第2の連続部材及び前記第1及び第2のシートを、該シート間に連続部材を挟んだ状態で挟圧する一対のロールの共通接面Sを挟んで相対向するように設置されている、前記<21>記載の複合シートの製造方法。
<23> 前記第1の連続部材を供給する前の前記第1のシート上に、接着剤塗工装置により接着剤を塗工し、また、前記第2の連続部材を供給する前の前記第2のシート上に、接着剤塗工装置により接着剤を塗工する、前記<21>又は<22>の何れか1に記載の複合シートの製造方法。
<24> 前記第2の揺動供給装置は、前記複合シートの長手方向に沿う直線に対して、前記第2の連続部材が、前記第1の連続部材と略対象形状の曲線を描くように、前記第2の揺動供給装置の揺動部を揺動させる、前記<20>~<23>の何れか1に記載の複合シートの製造方法。
<25> 揺動部の揺動パターンSが、第1移動手段による移動パターンS1と、第2移動手段による移動パターンS2との合成となるように制御しながら前記複合シートを製造する前記<20>~<24>の何れか1に記載の複合シートの製造方法。
<27> 前記回動又は移動パターンS1と前記移動パターンS2は揺動パターンSの50%ずつに分配する前記<25>又は<26>に記載の複合シートの製造方法。
<28> 第1移動手段及び第2移動手段の駆動源がサーボモータであり、両サーボモータの負荷率が一致するよう第1移動手段による移動パターンS1と第2移動手段による移動パターンS2を分配する、<25>~<27>の何れか1に記載の複合シートの製造方法。
<29> 前記揺動供給装置における前記揺動部を、その揺動範囲(振幅)Wの一端E1側から他端E2側に向かって移動させる際には、前記揺動供給装置の駆動プーリを、矢印a方向(一方向)に回転させると共に、該揺動供給装置の複数のスライダを前記シートの流れ方向と交差する矢印a’方向に移動させて、前記ベルトの位置を、前記シートの流れ方向と交差する矢印A方向に移動させる一方、前記揺動部を、その揺動範囲(振幅)Wの一端E2から他端E1側に向かって移動させる際には、前記駆動プーリを前記矢印a方向とは反対方向である矢印b方向に回転させると共に、前記複数のスライダを前記矢印a’方向とは反対方向である矢印b’方向に移動させて、前記ベルトの位置を、前記矢印A方向とは反対方向である矢印B方向に移動させる、前記<20>~<28>の何れか1に記載の複合シートの製造方法。
<30> 前記連続部材が弾性部材であり、前記複合シートとして、該弾性部材が伸長状態で固定されている伸縮性シートを製造する前記<20>~<29>の何れか1に記載の複合シートの製造方法。
<31> 前記<20>~<29>の何れか1に記載の複合シートの製造方法により得られた複合シートを外装体連続体として用いてパンツ型使い捨ておむつを製造する方法であって、
前記外装体連続体を得る伸縮性シートの製造工程後に、吸収性本体を間欠的に順次配置固定する吸収性本体の配置工程、前記外装体連続体にレッグ開口部形成用の開口を形成する開口形成工程、開口を形成した後の外装体連続体を幅方向に二つ折りする二つ折り工程、二つ折りした外装体連続体にサイドシール部を形成する工程、サイドシール部を形成したおむつ連続体を個々のパンツ型使い捨ておむつに切断する分離工程を具備する、パンツ型使い捨ておむつの製造方法。
Claims (14)
- 連続搬送される帯状のシート上に、連続部材を、該シートの流れ方向と交差する交差方向に揺動させながら供給する連続部材の揺動供給装置であって、
前記交差方向に揺動可能な揺動部と、前記揺動部を前記交差方向に移動させて揺動させる第1移動手段と、第1移動手段の一部又は全体を前記交差方向に移動させることで前記揺動部を前記交差方向に移動させて揺動させる第2移動手段と、前記第1移動手段及び前記第2移動手段を制御する制御部とを備えており、
前記揺動部に設けられた導出部から前記シートに対して前記連続部材を供給するようになされている連続部材の揺動供給装置。 - 前記第2移動手段は、前記第1移動手段に連結されている請求項1記載の連続部材の揺動供給装置。
- 前記第1移動手段及び前記第2移動手段は、それぞれ1つ以上のサーボモータ又はリニアモータからなる駆動源を有する請求項1又は2記載の連続部材の揺動供給装置。
- 前記制御部は、基準信号に応じて、前記第1移動手段と前記第2移動手段を制御し、前記揺動部の揺動を制御する、請求項1~3の何れか1項記載の連続部材の揺動供給装置。
- 前記第1移動手段は、前記揺動部を固定された無端状のベルトと、前記ベルトと係合する複数のプーリと、前記プーリのうち何れか一つ以上に連結された一つ以上の駆動源を備える請求項4記載の連続部材の揺動供給装置。
- 前記第2移動手段は、前記ベルトと係合する前記プーリをそれぞれ有する複数のスライダと、前記複数のスライダを連結する手段と、連結された前記複数のスライダを移動させる1つ以上の駆動源を備える請求項5記載の連続部材の揺動供給装置。
- 前記第2移動手段は、前記ベルトと係合する前記プーリをそれぞれ有する複数のスライダと、前記スライダの位置をそれぞれ移動させる1つ以上の駆動源を備える請求項5記載の連続部材の揺動供給装置。
- 前記第1移動手段が、複数のプーリ間に掛け渡された無端状のベルトを回動させるベルト回動手段、前記第2移動手段が、前記ベルトを前記シートの流れ方向と交差する交差方向に移動させるベルト移動手段であり、前記揺動部は、前記ベルトの回動と移動に伴い、前記交差方向に揺動する、請求項1~4の何れか1項記載の連続部材の揺動供給装置。
- シートに連続部材が曲線状に固定されている複合シートの製造方法であって、
連続搬送されるシート上に前記連続部材を連続的に供給する供給工程を備えており、
前記供給工程において、前記連続部材を、請求項1~8の何れか1項に記載の連続部材の揺動供給装置により、前記シートの流れ方向に交差する方向に揺動させながら供給する、複合シートの製造方法。 - 前記供給工程において、連続搬送される帯状の第1の前記シート上に、第1の前記連続部材を、第1の前記揺動供給装置を用いて、該第1のシートの流れ方向に交差する方向に揺動させながら連続的に供給すると共に、連続搬送される帯状の第2のシート上に、第2の前記連続部材を、第1の前記揺動供給装置と同様の構成を有する第2の前記揺動供給装置を用いて、第2の前記シートの流れ方向に交差する方向に揺動させながら連続的に供給する、請求項9記載の複合シートの製造方法。
- 前記連続部材が弾性部材であり、前記複合シートとして、該弾性部材が伸長状態で固定されている伸縮性シートを製造する請求項9又は10記載の複合シートの製造方法。
- 前記揺動部の揺動パターンSが、第1移動手段による移動パターンS1と、第2移動手段による移動パターンS2との合成となるように制御しながら前記複合シートを製造する請求項9~11の何れか1項に記載の複合シートの製造方法。
- 第1移動手段及び第2移動手段の駆動源がサーボモータであり、両サーボモータの負荷率が一致するよう第1移動手段による移動パターンS1と第2移動手段による移動パターンS2を分配する、請求項9~12の何れか1項に記載の複合シートの製造方法。
- 請求項9~13の何れか1項記載の複合シートの製造方法により得られた複合シートを外装体連続体として用いてパンツ型使い捨ておむつを製造する方法であって、
前記外装体連続体を得る伸縮性シートの製造工程後に、吸収性本体を間欠的に順次配置固定する吸収性本体の配置工程、前記外装体連続体にレッグ開口部形成用の開口を形成する開口形成工程、開口を形成した後の外装体連続体を幅方向に二つ折りする二つ折り工程、二つ折りした外装体連続体にサイドシール部を形成する工程、サイドシール部を形成したおむつ連続体を個々のパンツ型使い捨ておむつに切断する分離工程を具備する、パンツ型使い捨ておむつの製造方法。
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JP2003038565A (ja) * | 2001-05-23 | 2003-02-12 | Zuiko Corp | 使い捨て着用物品の製造装置および方法 |
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JP5797421B2 (ja) * | 2011-02-23 | 2015-10-21 | ユニ・チャーム株式会社 | 吸収性物品の製造装置 |
JP5797422B2 (ja) * | 2011-02-23 | 2015-10-21 | ユニ・チャーム株式会社 | 吸収性物品の製造装置及び吸収性物品の製造方法 |
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