CN107530200B - The conveyance control method and disconnecting device of continuous sheet - Google Patents

The conveyance control method and disconnecting device of continuous sheet Download PDF

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Publication number
CN107530200B
CN107530200B CN201580079967.6A CN201580079967A CN107530200B CN 107530200 B CN107530200 B CN 107530200B CN 201580079967 A CN201580079967 A CN 201580079967A CN 107530200 B CN107530200 B CN 107530200B
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China
Prior art keywords
continuous sheet
delivery section
conveying
display elements
mentioned
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CN107530200A (en
Inventor
渡部友弘
田代文大
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Unicharm Corp
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Unicharm Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/04Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

A kind of conveyance control method of the continuous sheet of absorbent commodity, it is characterized in that, the conveyance control method of the continuous sheet includes: the first delivery section and the second delivery section positioned at the position than first delivery section on the conveying direction on the upstream side, conveys the continuous sheet for being equipped with display elements repeatedly towards cutting part along conveying direction;The cutting part cuts the continuous sheet between the display elements;Obtain the runout information that the display elements deviate from base position;Obtain the location information for the elastic adjustment portion being arranged between first delivery section and second delivery section on the conveying direction;Change first delivery section to the conveying speed of the continuous sheet based on the runout information;Based on the runout information and the location information, change second delivery section to the conveying speed of the continuous sheet.

Description

The conveyance control method and disconnecting device of continuous sheet
Technical field
The present invention relates to the conveyance control method of continuous sheet and disconnecting devices.
Background technique
A kind of disconnecting device of well-known continuous sheet of absorbent commodity.The disconnecting device includes: cutting part, The cutting part cuts the continuous sheet for being equipped with the display elements repeatedly between display elements;First delivery section, this first Delivery section conveys continuous sheet towards cutting part along conveying direction.
Existing technical literature
Patent document
Patent document 1: International Publication No. 2010/150357
Summary of the invention
Problems to be solved by the invention
In the disconnecting device, there is the component for being provided with runout information acquisition unit, the runout information acquisition unit is for taking Obtain the runout information that display elements deviate from base position.Also, there is the disconnecting device of runout information acquisition unit in this set In, though segmentation unit length when for cutting continuous sheet because continuous sheet it is small flexible due to changed, Continuous sheet can be suitably cut, carries out changing the first delivery section pair based on the runout information obtained by the runout information acquisition unit That control of the conveying speed of continuous sheet.
On the other hand, the second delivery section is provided in the disconnecting device, which is arranged in the conveying direction In the position than the first delivery section on the upstream side, continuous sheet is conveyed along conveying direction;Elastic adjusting (Japanese: ダ ン サ ー) Portion, the elastic adjustment portion are arranged in the conveying direction between the first delivery section and the second delivery section;Location information acquisition unit, should Location information acquisition unit is used to obtain the location information of elastic adjustment portion, in order to control tension (tension), based on by upper rheme The location information for setting information acquiring section acquirement changes the second delivery section to the conveying speed of continuous sheet.
For example, rising conveying speed because changing control of first delivery section to the conveying speed of continuous sheet In the case of, elastic adjustment portion is gradually increasing.Also, the location information based on elastic adjustment portion, that is, the rising of elastic adjustment portion, Increase to the conveying speed of continuous sheet the second delivery section so that the control of elastic adjustment portion decline plays a role.
But in this control, there are the following problems, that is, changes the first delivery section to continuous sheet from based on runout information Conveying speed after play a role to for the control for controlling tension (tension) and changing the conveying speed of the second delivery section, The time is expended, the fast-response of control is not sufficiently good.
The present invention is made into view of problem as described above, it is therefore intended that improves the fast of the conveying control of continuous sheet Fast responsiveness.
The solution to the problem
Main inventive for achieving the object above is the conveyance control method of the continuous sheet of absorbent commodity, feature It is,
The conveyance control method of above-mentioned continuous sheet includes:
First delivery section and positioned at of the position than above-mentioned first delivery section on above-mentioned conveying direction on the upstream side Two delivery sections convey the continuous sheet for being equipped with display elements repeatedly along conveying direction towards cutting part;
Above-mentioned cutting part cuts above-mentioned continuous sheet between above-mentioned display elements;
Obtain the runout information that above-mentioned display elements deviate from base position;
Obtain the elastic tune being arranged between above-mentioned first delivery section and above-mentioned second delivery section on above-mentioned conveying direction The location information in section portion;
Change above-mentioned first delivery section to the conveying speed of above-mentioned continuous sheet based on above-mentioned runout information;
Based on above-mentioned runout information and above-mentioned location information, change above-mentioned second delivery section to the defeated of above-mentioned continuous sheet Send speed.
Other features of the invention can be recognized from the record of this specification and attached drawing.
The effect of invention
Using the present invention, the fast-response of the conveying control of continuous sheet can be improved.
Detailed description of the invention
Fig. 1 is the top view of the unfolded state of the diaper 1 of present embodiment.
Fig. 2A~Fig. 2 C is the decomposition explanatory diagram of each section of the diaper 1 of present embodiment.Fig. 2A is that the decomposition of front 3 is said Bright figure.Fig. 2 B is the decomposition explanatory diagram of lower crotch 5.Fig. 2 C is the decomposition explanatory diagram at rear portion 7.
Fig. 3 is the schematic diagram for indicating a part of manufacturing device 50 of diaper 1.
Fig. 4 is the block diagram for indicating a part of manufacturing device 50 of diaper 1.
Fig. 5 is the schematic diagram for indicating the appearance of cutter 61a cutting leakproof plate substrate 100.
Fig. 6 is the explanatory diagram for illustrating to be involved in the problems, such as the cutting of leakproof plate substrate 100.
Fig. 7 is the figure for indicating the flow chart of conveying control of leakproof plate substrate 100.
Specific embodiment
By the record of this specification and attached drawing, following item is at least specified.
A kind of conveyance control method of continuous sheet, this method are the conveying controlling party of the continuous sheet of absorbent commodity Method, which is characterized in that
The conveyance control method of above-mentioned continuous sheet includes:
First delivery section and positioned at of the position than above-mentioned first delivery section on above-mentioned conveying direction on the upstream side Two delivery sections convey the continuous sheet for being equipped with display elements repeatedly along conveying direction towards cutting part;
Above-mentioned cutting part cuts above-mentioned continuous sheet between above-mentioned display elements;
Obtain the runout information that above-mentioned display elements deviate from base position;
Obtain the elastic tune being arranged between above-mentioned first delivery section and above-mentioned second delivery section on above-mentioned conveying direction The location information in section portion;
Change above-mentioned first delivery section to the conveying speed of above-mentioned continuous sheet based on above-mentioned runout information;
Based on above-mentioned runout information and above-mentioned location information, change above-mentioned second delivery section to the defeated of above-mentioned continuous sheet Send speed.
Using the conveyance control method of this continuous sheet, the quick response of the conveying control of continuous sheet can be improved Property.
On the basis of the conveyance control method of the continuous sheet, preferably,
Above-mentioned first delivery section conveys the continuous sheet in the state of contacting with above-mentioned continuous sheet,
When obtaining above-mentioned runout information, on the part of above-mentioned continuous sheet contacted with above-mentioned first delivery section Above-mentioned display elements detected, to obtain above-mentioned runout information.
Using the conveyance control method of this continuous sheet, can precisely carry out continuous sheet conveying control and Cutting.
On the basis of the conveyance control method of the continuous sheet, preferably,
Above-mentioned first delivery section is belt conveyor.
Using the conveyance control method of this continuous sheet, can precisely carry out continuous sheet conveying control and Cutting.
On the basis of the conveyance control method of the continuous sheet, preferably,
From that end by above-mentioned cutting part side of the part of above-mentioned continuous sheet contacted with above-mentioned belt conveyor to upper State the part of continuous sheet carried by the sheet material supporting part opposite with above-mentioned cutting part by above-mentioned belt conveyor side that The length on above-mentioned conveying direction at end, the full-length than cutting the single sheet of material obtained after above-mentioned continuous sheet are small.
Using the conveyance control method of this continuous sheet, can precisely carry out continuous sheet conveying control and Cutting.
On the basis of the conveyance control method of the continuous sheet, preferably,
When obtaining above-mentioned runout information, using detection means to the above-mentioned display elements being located on above-mentioned continuous sheet into Row detection, so that above-mentioned runout information is obtained,
From the position of above-mentioned continuous sheet detected by above-mentioned detection means to above-mentioned continuous sheet by with above-mentioned cutting The length on above-mentioned conveying direction at that end by above-mentioned belt conveyor side of the part of the opposite sheet material supporting part carrying in portion Degree, than cut the single sheet of material obtained after above-mentioned continuous sheet full-length it is 2 times small.
Using the conveyance control method of this continuous sheet, can precisely carry out continuous sheet conveying control and Cutting.
On the basis of the conveyance control method of the continuous sheet, preferably, above-mentioned continuous sheet
Conveyance control method also include
Towards above-mentioned cutting part convey above-mentioned continuous sheet when, by above-mentioned first delivery section, above-mentioned second delivery section and The third delivery section being arranged between above-mentioned first delivery section and above-mentioned elastic adjustment portion on above-mentioned conveying direction is conveyed,
Change above-mentioned third delivery section to the conveying speed of above-mentioned continuous sheet based on above-mentioned runout information.
Using the conveyance control method of this continuous sheet, it is able to carry out the stable conveying of continuous sheet.
On the basis of the conveyance control method of the continuous sheet, preferably,
The conveyance control method of above-mentioned continuous sheet, which is also included, to be arranged on above-mentioned conveying direction in above-mentioned first delivery section Adhesive applicating portion between above-mentioned third delivery section will be on adhesive applicating to above-mentioned continuous sheet.
Using the conveyance control method of this continuous sheet, the adhesive can be applied stably.
On the basis of the conveyance control method of the continuous sheet, preferably,
When obtaining above-mentioned runout information, the above-mentioned display elements being located on above-mentioned continuous sheet are carried out using video camera Shooting obtains above-mentioned runout information based on the above-mentioned display elements taken.
Using the conveyance control method of this continuous sheet, can precisely carry out continuous sheet conveying control and Cutting.
Secondly, a kind of disconnecting device, which is the disconnecting device of the continuous sheet of absorbent commodity, which is characterized in that
Above-mentioned disconnecting device includes:
Cutting part, above-mentioned cutting part cut the above-mentioned continuous sheet for being equipped with the display elements repeatedly between display elements It cuts;
First delivery section, above-mentioned first delivery section convey above-mentioned continuous sheet towards above-mentioned cutting part along conveying direction;
Second delivery section, above-mentioned second delivery section is arranged on above-mentioned conveying direction is leaning on upstream than above-mentioned first delivery section The position of side conveys above-mentioned continuous sheet along above-mentioned conveying direction;
Elastic adjustment portion, above-mentioned elastic adjustment portion are arranged in above-mentioned first delivery section and above-mentioned the on above-mentioned conveying direction Between two delivery sections;
Runout information acquisition unit, above-mentioned runout information acquisition unit is for obtaining what above-mentioned display elements deviateed from base position Runout information;
Location information acquisition unit, above-mentioned location information acquisition unit are used to obtain the location information of above-mentioned elastic adjustment portion;
Control unit, above-mentioned control unit change above-mentioned first based on the runout information obtained by above-mentioned runout information acquisition unit Delivery section is to the conveying speed of above-mentioned continuous sheet, based on the runout information obtained by above-mentioned runout information acquisition unit and by upper The location information of location information acquisition unit acquirement is stated, changes above-mentioned second delivery section to the conveying speed of above-mentioned continuous sheet.
Using this disconnecting device, the fast-response of the conveying control of continuous sheet can be improved.
The summary of disposable diaper about present embodiment
The disposable diaper of an example of the absorbent commodity as present embodiment is the disposable urine of belt (style of opening) Cloth (hereinafter also referred to as diaper 1).
Fig. 1 is the vertical view of the unfolded state (referring to the state that diaper 1 is stretched as to not fold) of the diaper 1 of present embodiment Figure.Fig. 2A~Fig. 2 C is the decomposition explanatory diagram of each section of the diaper 1 of present embodiment.Fig. 2A is the decomposition explanatory diagram of front 3. Fig. 2 B is the decomposition explanatory diagram of lower crotch 5.Fig. 2 C is the decomposition explanatory diagram at rear portion 7.
The diaper 1 of present embodiment is as shown in Figure 1, include front 3, lower crotch 5 and rear portion 7.Front 3 is to be located at wearer Front (veutro) part (body encloses portion).In addition, rear portion 7 is positioned at the part (body encloses portion) at the rear portion (back side) of wearer. Lower crotch 5 is the part between front 3 and rear portion 7.
In the following description, all directions are defined as illustrated in fig. 1.That is, by from front 3, posteriorly 7 directions gone are set as The direction intersected with article length direction L is set as " product width direction W " by " article length direction L ".CL shown in FIG. 1 is Indicate the line in the center (being set as diaper center CL) of the diaper 1 on the L of article length direction.In addition, as shown in Fig. 2, will be with product The direction that length direction L and product width direction W intersects is set as " thickness direction ", and the side of the skin of wearer is set as The opposite side of the skin side is set as " non-skin side " by " skin side ".
Diaper 1 include absorber 21, upper piece 22, leakage prevention sheet 23, backsheet 24, skin lateral plate 26, waist rugate thin film 28, Magic tape 30 and object tape 29.
Absorber 21 is for absorbing liquid.That is, absorber 21 is the liquid-absorbent original that will absorb the excretas such as urine The component (absorbent core) that the bed of material is folded and constitutes is configured throughout front 3, lower crotch 5 and 7 ground of rear portion.Fig. 1's uses shadow part table The region shown indicates region shared by absorber 21.
Absorber 21 has rectangular shape.But the shape of absorber 21 is not limited to shape shown in FIG. 1.In addition, Absorber 21 is arranged at lower crotch 5.
Core package piece 25 that absorber 21 is made of liquid-permeable sheet (non-woven fabrics) is wrapped up, in a thickness direction by upper piece 22 Hes Leakage prevention sheet 23 clips configuration.As the liquid-absorbent raw material of composition absorber 21, such as it is able to use the liquid such as paper pulp fiber The liquid-absorbents shot-like particle such as absorbency fiber, superabsorbent polymer.Alternatively, it is also possible to containing except liquidabsorbing fibres with And the liquid-absorbent raw material other than liquid-absorbent shot-like particle.
Upper piece 22 be disposed on absorber 21 skin side liquid permeability component.
Leakage prevention sheet 23 is disposed on the liquid-impermeable component of the non-skin side of absorber 21.In addition, in the leakage prevention sheet 23 Non-skin side be printed with the display elements such as cartoon pattern.
Backsheet 24 is the component (extraneous adornment piece) for constituting the extraneous adornment of non-skin side of diaper 1, such as by nonwoven Cloth is constituted.In the non-skin side of leakage prevention sheet 23 configured with backsheet 24 (referring to Fig. 2A~Fig. 2 C).
In addition, the product width direction W of diaper 1 both sides and rear portion 7 be provided with flap 14.The flap 14 is main It to be made of skin lateral plate 26 and backsheet 24 (referring to Fig. 2 C).Skin lateral plate 26 is throughout front 3, lower crotch 5 and rear portion 7 The component of the skin side of formation, such as be made of non-woven fabrics.Skin lateral plate 26 is also to constitute aftermentioned leg side gauffer 16 (to be equivalent to Three-dimensional corrugation) component, the position in the outside of skin lateral plate 26 constitutes flap 14.
In addition, the end edge portion in the formation leg-openings portion of diaper 1 has along article length direction L along the article length side A pair of of the leg creases 15 (calf circumference pars contractilis) stretched to L.In the present embodiment, the leg creases 15 are by being arranged in skin side Rubber covered wire between piece 26 and backsheet 24 is constituted, which invests retractility to skin lateral plate 26 and backsheet 24.Separately Outside, which is arranged from front 3 to rear portion 7 on the L of article length direction.In addition, leg creases 15 are not limited to by rubber Line is constituted, such as can also be made of stretchable sheet (film).
In addition, having than the position of leg creases 15 in the inner part along the article length direction L on product width direction W There is a pair of of the leg side gauffer 16 to stretch along article length direction L.The leg side gauffer 16 is used to prevent the clearance lenkage from calf circumference, main It to be made of the position of 26 inside of skin lateral plate.
Leg side gauffer 16 (skin lateral plate 26) be located at article length direction L on both ends end joint portion 17 (in Fig. 1 In be rectangle part) engagement.In addition, between a pair of end joint portion 17 part (hereinafter, for convenience of explanation, referred to as main part 18) there was only the exterior portion engagement (referred to as main body joint portion 18a) on product width direction W.Therefore, the main part 18 is a pair of End joint portion 17 and main body joint portion 18a are surrounded and are formed as pocket-like, and are erected by fulcrum of main body joint portion 18a.In addition, Inboard portion on the product width direction W of main part 18 is provided with rubber covered wire 19, so the inboard portion has retractility. In this way, leg side gauffer 16 is made of end joint portion 17 and main part 18, and it is same as leg creases 15, on the L of article length direction From the setting of front 3 to rear portion 7.
In addition, configured with waist rugate thin film 28 between the absorber 21 and backsheet 24 at rear portion 7 (referring to Fig. 2 C).It should Waist rugate thin film 28 is the band-like component to stretch along product width direction W.Waist rugate thin film 28 assigns backsheet 24 Deng With retractility, to constitute waist gauffer.The length of the product width direction W of waist rugate thin film 28 is longer than absorber 21.Cause This, waist gauffer is that self-priming acceptor 21 is formed to the outside of product width direction W is prominent again.
A pair of of magic tape 30 is fixed on the flap 14 at rear portion 7 using fixed part 32.In the present embodiment, by magic tape 30 a part sandwiches between the skin lateral plate 26 and backsheet 24 for constituting flap 14 (referring to Fig. 2 C), to install thread gluing Band 30.
Magic tape 30 includes fixation portions 32 and engaging portion 31.Also, by making the engaging portion 31 and aftermentioned target Band 29 combines, and can enable a wearer to put on diaper 1.In addition, the width on the article length direction L of fixed part 32 is than engaging portion 31 Width on the L of article length direction is big.Also, in the present embodiment, a part in engaging portion 31 has velcro fastener.
The non-skin side for the backsheet 24 that object tape 29 configured in front 3 (referring to Fig. 2A).Object tape 29 is energy and thread gluing The component combined with 30, such as formed by non-woven fabrics.In addition, the object tape 29 of present embodiment as shown in Figure 1, be formed as along The rectangular component of product width direction W.
Manufacturing device 50 about diaper 1
Next, illustrating the manufacturing device 50 of above-mentioned diaper 1.
In the present embodiment, the leakproof plate substrate 100 of strip sheet is cut, by the leakproof plate substrate after cutting 100 are bonded with the back plate substrate 110 of strip sheet.Also, further by object tape substrate and the leakage prevention sheet to fit together Substrate 100 and back plate substrate 110 are bonded.Also, (absorber 21, upper plate substrate and the skin side chip base such as make other substrates Material etc.) substrate that fits together with above-mentioned three is bonded, finally it is cut into article shape.
Hereinafter, mainly illustrating part (the cutting dress for cutting leakproof plate substrate 100 in manufacturing device 50 using Fig. 3 and Fig. 4 It sets).Fig. 3 is the schematic diagram for indicating a part of manufacturing device 50 of diaper 1.Fig. 4 be indicate diaper 1 manufacturing device 50 one Partial block diagram.Fig. 5 is the schematic diagram for indicating the appearance of cutter 61a cutting leakproof plate substrate 100.
Manufacturing device 50 (disconnecting device) include supply unit 52, cutting roller 61 (being equivalent to cutting part), anvil roller 62 (quite In sheet material supporting part), adhesive applicating portion 63, elastic adjusting unit 64, controller 70 and detector group.
Supply unit 52 is the unit for conveying leakproof plate substrate 100, is had along conveying direction conveying leakproof plate substrate 100 First 54~third of delivery section delivery section 58 and multiple free rolls (driven voller).In addition, leakproof plate substrate volume 100 (not shown) On spool, when conveying leakproof plate substrate 100 using supply unit 52, leakproof plate substrate 100 is continuously released from spool.
First delivery section 54 is to convey the delivery section of leakproof plate substrate 100 towards cutting roller 61 along conveying direction.This first Delivery section 54 is arranged in the upstream side of cutting roller 61 and in the conveying direction close to the front side of cutting roller 61.
First delivery section 54 is that the belt of the leakproof plate substrate 100 is conveyed in the state of contacting with leakproof plate substrate 100 The first driven roller 54a including not shown motor drive, conveyer is located at than first driven roller in the conveying direction First driven voller 54b of the position of 54a downstream and the band being erected on the first driven roller 54a and the first driven voller 54b 54c.Also, by rotating the first driven roller 54a using motor drive, band 54c is mobile, and thus conveying connects with 54c The leakproof plate substrate 100 of touching.In addition, the first delivery section 54 of present embodiment is suction conveyer, so as to contacted with 54c Leakproof plate substrate 100 is adsorbed in the state with 54c and conveys the leakproof plate substrate 100.
Second delivery section 56 is arranged in the conveying direction to be leaned on than the first delivery section 54 and aftermentioned third delivery section 58 The position of upstream side is the delivery section along conveying direction conveying leakproof plate substrate 100.Second delivery section 56 is in the conveying direction Be arranged it is elastic adjust unit 64 (elastic adjustment portion 65) upstream side and close to this it is elastic adjust unit 64 front side.
Second delivery section 56 includes the second driven roller 56a of not shown motor drive, and is configured to across leakproof The second driven voller 56b opposite with the second driven roller 56a of plate substrate 100.Also, by making second using motor drive Driven roller 56a rotation, conveys the leakproof plate substrate 100 contacted with the second driven roller 56a.
(in other words, third delivery section 58 is arranged between the first delivery section 54 and the second delivery section 56 in the conveying direction Between first delivery section 54 and elastic adjusting unit 64 (elastic adjustment portion 65)), it is to convey leakproof plate substrate 100 along conveying direction Delivery section.The third delivery section 58 is arranged in the upstream side in adhesive applicating portion 63 and in the conveying direction close to the bonding agent The front side of coated portion 63.
Third delivery section 58 and the second delivery section 56 are same, also include the third driven roller of not shown motor drive 58a, and it is configured to the third driven voller 58b opposite with the third driven roller 58a across leakproof plate substrate 100.Also, by making It is rotated using the third driven roller 58a of motor drive, conveys the leakproof plate substrate 100 contacted with third driven roller 58a.
Cutting roller 61 be used for by using supply unit 52 convey come the leakproof plate substrate 100 of strip sheet cut, generation The leakproof plate substrate 100 of billet sheet.Here, for convenience of explanation, the leakproof plate substrate 100 of strip sheet is known as continuous anti- Dropping fraction 102 (is equivalent to continuous sheet), and the leakproof plate substrate 100 of the billet sheet after cutting is known as individual leakage prevention sheet 104.? Be equipped with above-mentioned display elements on continuous leakage prevention sheet 102 repeatedly, cutting roller 61 between the display elements to continuous leakage prevention sheet 102 into Row cutting.In addition, " cutting between display elements to continuous leakage prevention sheet 102 " is not necessarily referring to be printed with display elements Part cut.
Cutting roller 61 has cutter 61a, and anvil roller 62 is configured to opposite across leakproof plate substrate 100 with cutting roller 61.? That is leakproof plate substrate 100 is located at the clearance G of cutting roller 61 and anvil roller 62.In addition, cutter 61a is with the length of cutter The outer peripheral surface of cutting roller 61 is arranged in along the mode of rotary axis direction for degree direction.
Cutting roller 61 and anvil roller 62 can be rotated by motor drive (not shown) respectively.In addition, the rotation of the two Axis direction is parallel.
When sustainable utilization supply unit 52 conveys continuous leakage prevention sheet 102 in the state of cutting roller 61 and the rotation of anvil roller 62 When, the length of continuous leakage prevention sheet 102 being located at than above-mentioned clearance G by the part of the position of conveyance direction downstream side is progressively longer, Soon, cutter 61a reaches above-mentioned clearance G (that is, position opposite with anvil roller 62) because of the rotation of cutting roller 61 (referring to figure 5).Also, cutter 61a cuts continuous leakage prevention sheet 102 when reaching the clearance G and generates individual leakage prevention sheet 104.
Individual leakage prevention sheet 104 that the carrying of anvil roller 62 generates is moved to individual leakage prevention sheet 104 and closes with back plate substrate 110 The interflow position C of stream, and individual leakage prevention sheet 104 is fixed on back plate substrate 110 in interflow position C.That is, generate Individual leakage prevention sheet 104 is moved with the state being positioned on anvil roller 62 with the rotation of anvil roller 62, is reached and back chip base soon The interflow position C that material 110 collaborates.Also, in the interflow position, it is bonded individual leakage prevention sheet 104 with back plate substrate 110.
In addition, in the present embodiment, the perimeter of anvil roller 62 is set as 2 times of the perimeter of cutting roller 61.In addition, by anvil A semi-perimeter (perimeter of cutting roller 61) for roller 62 is set as the length on the article length direction L with 1 sheet articles (diaper 1) (this length is indicated with appended drawing reference L1.In other words, the length on the article length direction L of backsheet 24) it is identical.
Thus, in a period of cutting roller 61 rotates 1 week (62 half revolution of anvil roller), carry out to 1 sheet articles (diaper 1) The back plate substrate 110 of length L1 amount fixes the movement of individual leakage prevention sheet 104.Thus, when cutting connects under the state shown in fig. 5 When continuous leakage prevention sheet 102 so that continuous leakage prevention sheet 102 from front end E1 to cutting position (being in other words the position of clearance G) it is defeated The length for sending the length on direction to reach the leakage prevention sheet 23 in 1 sheet articles (diaper 1) (indicates this length with appended drawing reference L2.When So, the size ratio L1 of L2 is small) mode convey continuous leakage prevention sheet 102.
In addition, equally just to cut (the continuous leakage prevention sheet of leakproof plate substrate 100 whenever the length L2 that delivered leakage prevention sheet 23 102) imagination is manufactured.That is, will be above-mentioned in a manner of making the segmentation unit length of continuous leakage prevention sheet 102 reach length L2 Display elements are printed onto repeatedly on continuous leakage prevention sheet 102.In other words, with the typographical display element (reference repeatedly of the pitch of length L2 The upper figure of Fig. 6).
Adhesive applicating portion 63 will be for that will make leakproof plate substrate 100 (individual leakage prevention sheet 104) be bonded to back plate substrate 110 Bonding agent, be coated on leakproof plate substrate 100 (continuous leakage prevention sheet 102).The adhesive applicating portion 63 is set in the conveying direction It sets between the first delivery section 54 and third delivery section 58.In other words, adhesive applicating portion 63 is arranged in the conveying direction The downstream side of three delivery sections 58 and close to the rear side of the third delivery section 58.In addition, the adhesive applicating portion 63 of present embodiment Hot-melt adhesive is coated on leakproof plate substrate 100.
Elastic for adjusting unit 64 and being used to act synergistically and control with the second above-mentioned delivery section 56 leakproof plate substrate 100 Power (tension).Elastic adjusting unit 64 includes elastic adjustment portion 65 and location information acquisition unit 66.
The position (being the position in up and down direction in the present embodiment) of elastic adjustment portion 65 can change.That is, elastic Adjustment portion 65 can move along the vertical direction.In addition, the first delivery section 54 and is arranged in elastic adjustment portion 65 in the conveying direction Between two delivery sections 56.
Location information acquisition unit 66 is used to obtain the location information of elastic adjustment portion 65.The location information of present embodiment takes Obtain the position-detection sensor that portion 66 is the position in the up and down direction for detect elastic adjustment portion 65.
In addition, being seen below about how control tension.
Controller 70 is for controlling the control unit of manufacturing device 50 (disconnecting device) (control unit).Controller 70 includes CPU and memory etc..CPU is the arithmetic processing apparatus for controlling manufacturing device 50 (disconnecting device) entirety.Memory is used for Region and operating area for ensuring to store the program of CPU etc..CPU is according to each list of process control stored in memory Member.
Detector group will test result and be output in controller 70.The detection knot that controller 70 is exported based on self-detector group Fruit controls each unit.In the present embodiment, as the detector group, equipped with to the display member being located on continuous leakage prevention sheet 102 The video camera 72 that element is detected.In addition, being seen below about how video camera 72 is used.In addition, above-mentioned elastic adjusting unit 64 (location information acquisition units 66) are also a part in detector group.
Control about supply unit 52 to the conveying of leakproof plate substrate 100
Next, illustrating the control of conveying of the supply unit 52 to leakproof plate substrate 100 using Fig. 6 and Fig. 7.Fig. 6 is For illustrating to be involved in the problems, such as the explanatory diagram of the cutting of leakproof plate substrate 100.Fig. 7 is the conveying control for indicating leakproof plate substrate 100 The figure of the flow chart of system.Firstly, the control for the conveying that explanation is carried out by the first delivery section 54 and third delivery section 58, then again Illustrate the control of the conveying carried out by the second delivery section 56.
Conveying about the first delivery section 54 and third delivery section 58 controls
In addition, as described above, (continuously to prevent whenever the length L2 that delivered leakage prevention sheet 23 just cuts leakproof plate substrate 100 Dropping fraction 102) imagination be designed.That is, will in a manner of making the segmentation unit length of continuous leakage prevention sheet 102 reach length L2 Above-mentioned display elements are printed onto repeatedly on continuous leakage prevention sheet 102.In other words, with the pitch of length L2, typographical display is first repeatedly Element.
But since leakproof plate substrate volume 100 on spool, so being located at the leakproof chip base of the radially inner side of spool Material 100 by consolidation is wound, and the leakproof plate substrate 100 positioned at radial outside is wound with being relaxed.Consequently, it can happen segmentation is single Bit length (pitches of display elements) is in the radially inner side phenomenon different with radial outside.That is, leakproof plate substrate 100 is slightly stretched Contracting, telescopic level is in radially inner side and radial outside difference, so above-mentioned this phenomenon has occurred.
In addition, the state in leakproof plate substrate 100 not instead of on spool, is continuously released from spool and is conveyed When, it can also generate above-mentioned this phenomenon.That is, at this point, leakproof plate substrate 100 is accelerated or slows down, so to leakproof plate substrate 100 Drag force it is different due to the acceleration or deceleration.In particular, using up in leakproof plate substrate 100 of the volume on spool and just having replaced After new leakproof plate substrate, the state of self-stopping technology suddenly accelerates leakproof plate substrate 100, so being applied with stronger pulling Power.In this way, because unit length (pitches of display elements) can also occur to divide for the acceleration or deceleration of leakproof plate substrate 100 because of place Different and different phenomenon.
The appearance of leakproof plate substrate 100 when in the upper figure of Fig. 6 indicating that above-mentioned phenomenon does not occur.In the leakproof plate substrate On 100, segmentation unit length, the pitch of display elements are fixed (length L2) in any place.In addition, in order to simplify figure To facilitate explanation, display elements are indicated with the bullet for the central portion for being located at segmentation unit and double circles of open circles.
On the other hand, the appearance of the leakproof plate substrate 100 when the phenomenon has occurred is indicated in the following figure of Fig. 6.It is anti-at this On dropping fraction substrate 100, the pitch for dividing unit length and display elements is gradually increased from right to left.In addition, display elements itself It is also from right to left, to increase relative to deviation when above-mentioned phenomenon not occurring.In addition, Fig. 6 is the mental map understood for convenience, It is different from actual appearance.
Here, as indicated in the above example, when being cut to continuous leakage prevention sheet 102, continuous leakproof The length from front end E1 to cutting position on the conveying direction of (clearance G) of piece 102 needs to reach defined length, that is, needs Reach the length L2 of the leakage prevention sheet 23 in 1 sheet articles (diaper 1).Thus, in the case where above-mentioned phenomenon does not occur, in order to reach Length L2, conveying speed of the first delivery section 54 (third delivery section 58) of setting to continuous leakage prevention sheet 102.For example, false If conveying speed is at the uniform velocity, the case where the time after cutting continuous leakage prevention sheet 102 until cutting next time is T seconds Under, conveying speed is set as L2/T.
But in the case where above-mentioned phenomenon has occurred, if made be always from front end E1 to clearance G length L2 that The conveying of sample no longer can be carried out cutting appropriate then as shown in the arrow upward of the following figure of Fig. 6.
So, in the present embodiment, runout information acquisition unit is (in the present embodiment by above-mentioned video camera 72 and above-mentioned Controller 70 is constituted) runout information that display elements deviate from base position is obtained, the runout information based on acquirement changes first The conveying speed of delivery section 54 and third delivery section 58 to continuous leakage prevention sheet 102.
It is illustrated referring to the flow chart of Fig. 7.Firstly, shooting display elements using above-mentioned video camera 72 on defined opportunity (step S1).The entirety of display elements can be shot, a part of display elements can also be shot.Here, it is based on to be located at and divide The bullet for cutting the central portion of unit is illustrated as the example of reference object.In addition, as the opportunity, as long as periodicity (fixed) opportunity can enumerate following example as an example, that is, setting for cutter 61a close to above-mentioned The proximity sensor that the situation of gap G etc. is detected, the signal based on the proximity sensor are shot.In addition, runout information Acquisition unit (video camera 72) as shown in figure 3, to be located at continuous leakage prevention sheet 102 with the first delivery section 54 (that is, belt conveyor) Display elements on the part of contact are detected.
Then, shooting result (display elements taken) is output to controller 70 (step S3) by video camera 72, control Device 70 analyzes image (step S5).Also, controller 70 obtains display elements (bullet) from benchmark position by the analysis of image Set (that is, do not occur display elements (bullet) when above-mentioned phenomenon should position) runout information (step S7) that deviates.At this In embodiment, obtain by conveying direction setting be positive (+) direction when, display elements (bullet) exist relative to base position How many (bias) is deviated from+(-) direction, as runout information.
Then, controller 70 is based on the runout information obtained by runout information acquisition unit, change the first delivery section 54 and Conveying speed (step S9) of the third delivery section 58 to continuous leakage prevention sheet 102.In addition, by the conveying speed of the first delivery section 54 and The conveying speed of third delivery section 58 is controlled always as identical speed.
For example, when display elements (bullet) deviate from the amount of a on-direction relative to base position (than benchmark position Set the case where delaying), conveying speed of first delivery section 54 (third delivery section 58) to continuous leakage prevention sheet 102 is set into (rising) To make the length from front end E1 to cutting position on the conveying direction of (clearance G) of continuous leakage prevention sheet 102 reach L2+a.For example, Assuming that conveying speed is at the uniform velocity, the case where the time after cutting continuous leakage prevention sheet 102 until cutting next time is T seconds Under, conveying speed is set as (L2+a)/T.On the contrary, display elements (bullet) relative to base position on+direction partially When amount from a (the case where shifting to an earlier date than base position), by the first delivery section 54 (third delivery section 58) to continuous leakage prevention sheet 102 Conveying speed set (decline) as, make continuous leakage prevention sheet 102 from front end E1 to cutting position on the conveying direction of (clearance G) Length reach L2-a.
In addition, in this example, the bias a of acquirement and the amount a added and subtracted with L2 phase are set as identical value, but the present invention It's not limited to that, and the two also can be set as different amounts.
In addition, the example for obtaining bias has been enumerated, however, you can also not obtain bias, but only as runout information Only obtain be+or-(being in advance or to delay) information.Also, at this point it is possible to+in the case where, fixation is cut from L2 Value (the same value) ,-in the case where, to L2 plus fixed value (the same value).
Alternatively, it is also possible to which bias a given threshold is added or is subtracted each other with L2 in the case where being more than threshold value.Separately Outside, the average value for the bias that can also be found out over several times is added or is subtracted each other with L2 based on the average value acquired.
It is continuous with revised length (such as L2+a or L2-a) cutting also, when cutter 61a reaches the clearance G Leakage prevention sheet 102 generates individual leakage prevention sheet 104 (step S11) corresponding with the segmentation variation of unit length.
Conveying about the second delivery section 56 controls
About the second delivery section 56 conveying control, illustrate comparative example first, then besides bright example of the present invention.
Comparative example
Second delivery section 56 conveys leakproof plate substrate 100 along conveying direction, as described above, being arranged in elastic adjusting unit 64 The upstream side of (elastic adjustment portion 65) and close to the elastic front side for adjusting unit 64, the second delivery section 56 and elastic adjusting unit 64 act synergistically and control the tension (tension) of leakproof plate substrate 100.That is, the elastic location information for adjusting unit 64 obtains Portion 66 (position-detection sensor) exports to controller 70 location information of acquired elastic adjustment portion 65 on defined opportunity. Also, controller 70 changes the second delivery section 56 to the conveying speed of continuous leakage prevention sheet 102 based on the location information.For example, control Device 70 processed changes above-mentioned conveying speed so that elastic adjustment portion 65 is located at defined base position.Elastic adjustment portion 65 be located at than In the case where the high position in base position, increase conveying speed, so that elastic adjustment portion 65 declines.On the contrary, in elastic adjusting In the case that portion 65 is located at the position lower than base position, decline conveying speed, so that elastic adjustment portion 65 rises.As a result, The tension (tension) of leakproof plate substrate 100 can be controlled.
Example of the present invention
In a comparative example, controller 70 changes the first delivery section based on the runout information obtained by runout information acquisition unit 54 and third delivery section 58 the second delivery section 56 is not carried out based on the deviation to the conveying speed of continuous leakage prevention sheet 102, but The control of information.
In this case, such as being based on runout information in controller 70 keeps the first delivery section 54 and third delivery section 58 right When the conveying speed of continuous leakage prevention sheet 102 rises, elastic adjustment portion 65 is gradually increasing, so above-mentioned tension (tension) Control (that is, make the second delivery section 56 conveying speed rise so that elastic adjustment portion 65 decline control) play a role.Separately On the one hand, make the first delivery section 54 and third delivery section 58 to continuous leakage prevention sheet 102 based on runout information in controller 70 When conveying speed has dropped, elastic adjustment portion 65 is gradually reduced, so the control of above-mentioned tension (tension) is (that is, make second The conveying speed of delivery section 56 declines so that the control that elastic adjustment portion 65 rises) it plays a role.
But in this control, there are the following problems, that is, is based on runout information from controller 70 and changes the first delivery section 54 and third delivery section 58 change the in order to control tension (tension) to after the conveying speed of continuous leakage prevention sheet 102 Until the control of the conveying speed of two delivery sections 56 plays a role, the time is expended, the fast-response of control is not sufficiently good.
So, in the present embodiment, controller 70 is based not only on the location information of elastic adjustment portion 65, is also based in addition Runout information changes the second delivery section 56 to the conveying speed (step S9) of continuous leakage prevention sheet 102.For example, in display elements When (bullet) deviates from the amount of a relative to base position edge-direction, controller 70 not only makes the first delivery section 54 and third Delivery section 58 rises the conveying speed of continuous leakage prevention sheet 102, and makes conveying of second delivery section 56 to continuous leakage prevention sheet 102 Speed similarly rises (such as the amount for rising a/T).On the other hand, display elements (bullet) relative to base position along+ When direction deviates from the amount of a, controller 70 not only makes the first delivery section 54 and third delivery section 58 to continuous leakage prevention sheet 102 Conveying speed decline, and decline the second delivery section 56 similarly to the conveying speed of continuous leakage prevention sheet 102 and (such as decline a/ The amount of T).In addition, executing the conveying control of the second delivery section 56 based on location information in the same manner as comparative example.
When so arranged, controller 70 can make the first delivery section 54 and third delivery section 58 to continuous leakage prevention sheet 102 conveying speed rises the opportunity of (decline), and the conveying speed of the second delivery section 56 is made to rise (decline).Therefore, compared with Example is compared, and can be improved the fast-response of conveying control.
About the disconnecting device of present embodiment and the validity of conveyance control method
In the present embodiment, controller 70 is believed based on the runout information obtained by runout information acquisition unit and by position The location information that acquisition unit 66 obtains is ceased, changes the second delivery section 56 to the conveying speed of above-mentioned continuous sheet.
Therefore, as described above, can be improved the fast-response of the conveying control of continuous leakage prevention sheet 102.
In addition, the first delivery section 54 of present embodiment conveys this continuously in the state of contacting with continuous leakage prevention sheet 102 Leakage prevention sheet 102, runout information acquisition unit (when obtaining runout information) to be located at continuous leakage prevention sheet 102 with the first delivery section 54 Display elements on the part of contact are detected, to achieve runout information.
Runout information acquisition unit can also to be located at continuous leakage prevention sheet 102 not with it is aobvious on the part of any location contacts Show that element is detected, but in this case, since continuous leakage prevention sheet 102 rocks, it is possible that can not be precisely Obtain runout information.In this regard, in the present embodiment, to the display elements on the stable part for being located at continuous leakage prevention sheet 102 It is detected, so runout information can be obtained precisely.Therefore, continuous leakage prevention sheet 102 also can precisely be carried out Conveying control and cutting.
In addition, in the present embodiment, as described above, runout information acquisition unit (video camera 72) is to positioned at continuous leakage prevention sheet Display elements on 102 part contacted with the first delivery section 54 are detected, so the runout information acquisition unit is and cuts It is separated to cut roller 61.Thus, the segmentation unit in the continuous leakage prevention sheet 102 of the step S1 display elements taken is printed in step Rapid S11 is not cut (as individual leakage prevention sheet 104 after step S11 cutting), but in the conveying direction than the segmentation (downstream side) the segmentation unit of unit (for convenience of explanation, referred to as shooting segmentation unit) in advance is (for convenience of explanation, referred to as Cutting segmentation unit) become individual leakage prevention sheet 104.As described above, segmentation unit length is to change, but the variation of the variation Degree is usually slow, and the variation of shooting segmentation unit and the variation of cutting segmentation unit are not significantly to change.Thus, even if should Shooting segmentation unit and cutting segmentation unit are inconsistent, will not lead to the problem of (this is because be not will 1mm not yet Extremely strict cutting as the wrong position of meeting is cut off is used as target).But shooting segmentation unit and the cutting It is preferably close as far as possible to divide unit.
So, in the present embodiment, make 54 belt conveyor of the first delivery section.It is that belt is defeated in the first delivery section 54 In the case where sending machine, as shown in figure 3, the first delivery section 54 can be formed as the elongated shape along conveying direction, so can make First delivery section 54 (belt conveyor) is easily close to cutting roller 61.
Therefore, runout information acquisition unit (video camera 72) also can close to cutting roller 61, so as to make shooting segmentation unit with Cutting segmentation unit is close.Thus, it is possible to precisely carry out the conveying control and cutting of continuous leakage prevention sheet 102.
In addition, in the present embodiment, it is thus achieved that: make contacting with belt conveyor from continuous leakage prevention sheet 102 Partial end E2 (referring to Fig. 3) the leaning on to the part carried by anvil roller 62 using continuous leakage prevention sheet 102 by 61 side of cutting roller The end E3 of belt conveying pusher side (is in the present embodiment, positioned at the position more some by conveying direction upstream side than above-mentioned clearance G Position, referring to Fig. 3 and Fig. 5) length in the conveying direction, it is more anti-than cutting individual that obtain after continuous leakage prevention sheet 102 The full-length (that is, length L2 when above-mentioned phenomenon not occurring) of dropping fraction 104 is small.
Therefore, runout information acquisition unit (video camera 72) can be made close to cutting roller 61, so as to make shooting segmentation unit with Cutting segmentation unit is close.Thus, it is possible to precisely carry out the conveying control and cutting of continuous leakage prevention sheet 102.
In addition, in the present embodiment, equally realizing: making the detected component (video camera from continuous leakage prevention sheet 102 72) the position D (referring to Fig. 3) detected leans on belt conveying pusher side to the part carried by anvil roller 62 of continuous leakage prevention sheet 102 The length in the conveying direction for holding E3, than the full-length for cutting individual leakage prevention sheet 104 obtained after continuous leakage prevention sheet 102 (that is, length L2's when above-mentioned phenomenon not occurring) is 2 times small.
Therefore, runout information acquisition unit (video camera 72) can be made close to cutting roller 61, so as to make shooting segmentation unit with Cutting segmentation unit is close.Thus, it is possible to precisely carry out the conveying control and cutting of continuous leakage prevention sheet 102.
In addition, in the present embodiment, runout information acquisition unit (when obtaining runout information) is using video camera 72 to setting Display elements on continuous leakage prevention sheet 102 are shot, and achieve runout information based on the display elements taken.
Therefore, instant playback element is complicated, also can suitably obtain runout information.Thus, also can precisely it carry out The conveying control and cutting of continuous leakage prevention sheet 102.
Other embodiments
Above-mentioned embodiment explains the present invention with being not intended to limit for being readily appreciated that the present invention.Energy of the present invention It changes and improves with enough not departing from purport, and the present invention includes equivalent of the invention certainly.
In the above-described embodiment, as the continuous sheet of absorbent commodity, it is (continuous anti-to illustrate leakproof plate substrate 100 Dropping fraction 102), but the present invention is not limited to this, as long as the continuous sheet of absorbent commodity, can be arbitrary object Product.
In addition, in the above-described embodiment, having and the first delivery section 54 and elastic adjustment portion being arranged in the conveying direction Between 65, and convey along conveying direction the third delivery section 58 of continuous leakage prevention sheet 102.Also, controller 70 is based on by deviateing The runout information that information acquiring section obtains changes third delivery section 58 to the conveying speed of continuous leakage prevention sheet 102.
But the present invention is not limited to this, third delivery section 58 can also there is no (be not required setting third to convey Portion 58).
But it should be noted that when the feelings between the first delivery section 54 and elastic adjustment portion 65 with third delivery section 58 Under condition, the continuous leakage prevention sheet of conveying can be stablized in the case where there is distance to the first delivery section 54 and elastic adjustment portion 65 102 aspect, preferably above embodiment.
In addition, in this case, as shown in figure 3, it is preferred that in the conveying direction in the first delivery section 54 and third delivery section It is provided between 58 for by the adhesive applicating portion 63 on adhesive applicating to continuous leakage prevention sheet 102.
In this case, due to being to apply bonding agent on the continuous leakage prevention sheet 102 for carrying out stable conveying, so can Stably coat bonding agent.
In addition, in the above-described embodiment, runout information acquisition unit is continuous to being located at using detection means (video camera 72) Display elements on leakage prevention sheet 102 are detected, so that the runout information that display elements deviate from base position is achieved, but this It's not limited to that for invention.
As described above, the pitch for dividing unit length and display elements changes, consequently also when above-mentioned phenomenon occurs Deviate the position that display elements occur.Therefore, divide unit length, the pitch of display elements by obtaining, and hold its variation, Also the runout information that display elements deviate from base position can be found out.Also, runout information is found out in this way, based on asking The form for the conveying speed that the runout information obtained changes continuous leakage prevention sheet 102 also belongs to scope of the invention.
As long as in addition, obtain segmentation unit length, the pitch of display elements and the variation for having held the two, it can also be with Display elements are not found out deviates from how many from base position.For example, enumerating an example about segmentation unit length, can also obtaining Segmentation unit length is that edge+direction changes or edge-direction changes, and in the case where edge+direction changes, fixation is cut from L2 Value (the same value), in the case where edge-direction changes, to L2 plus fixed value (the same value).In this way, in view of hair Bright purpose, it may be said that obtain the thing for deviateing and obtaining that segmentation unit length (pitches of display elements) is equivalence.Thus, wide In justice, the acquirement (assurance of variation) of above-mentioned segmentation unit length (pitches of display elements) is also contained in display elements from base Level is set in the scope of the acquirement of the runout information of deviation.Therefore, segmentation unit length (pitches of display elements) is obtained, is based on The form that the segmentation unit length (pitches of display elements) held changes the conveying speed of continuous leakage prevention sheet 102 also belongs to this The scope of invention.
Description of symbols
1, diaper;3, front;5, lower crotch;7, rear portion;14, flap;15, leg creases;16, leg side gauffer;17, it holds Joint portion;18, main part;18a, main body joint portion;19, rubber covered wire;21, absorber;22, upper piece;23, leakage prevention sheet;24, back Piece;25, core package piece;26, skin lateral plate;28, waist rugate thin film;29, object tape;30, magic tape;31, engaging portion;32, solid Determine portion;50, manufacturing device;52, supply unit;54, the first delivery section;54a, the first driven roller;54b, the first driven voller;54c, Band;56, the second delivery section;56a, the second driven roller;56b, the second driven voller;58, third delivery section;58a, third driven roller; 58b, third driven voller;61, cutting roller;61a, cutter;62, anvil roller;63, adhesive applicating portion;64, elastic adjusting unit; 65, elastic adjustment portion;66, location information acquisition unit;70, controller;72, video camera;100, leakproof plate substrate;102, continuous anti- Dropping fraction;104, individual leakage prevention sheet;110, back plate substrate;C, collaborate position;D, detection position;E1, front end;E2, end;E3, end; G, gap.

Claims (9)

1. a kind of conveyance control method of continuous sheet, this method is the conveyance control method of the continuous sheet of absorbent commodity, It is characterized in that,
The conveyance control method of the continuous sheet includes:
First delivery section and the second delivery section positioned at the position than first delivery section in the conveying direction on the upstream side, The continuous sheet for being equipped with display elements repeatedly is conveyed towards cutting part along the conveying direction;
The cutting part cuts the continuous sheet between the display elements;
Obtain the runout information that the display elements deviate from base position;
Obtain the elastic adjustment portion being arranged between first delivery section and second delivery section on the conveying direction Location information;
Change first delivery section to the conveying speed of the continuous sheet based on the runout information;
Based on the runout information and the location information, change second delivery section to the conveying speed of the continuous sheet Degree, thereby executing the control carried out by tension of second delivery section to the continuous sheet.
2. the conveyance control method of continuous sheet according to claim 1, which is characterized in that
First delivery section conveys the continuous sheet in the state of contacting with the continuous sheet,
When obtaining the runout information, to the institute on the part contacted with first delivery section for being located at the continuous sheet It states display elements to be detected, to obtain the runout information.
3. the conveyance control method of continuous sheet according to claim 2, which is characterized in that
First delivery section is belt conveyor.
4. the conveyance control method of continuous sheet according to claim 3, which is characterized in that
From that end by the cutting part side for the part of the continuous sheet contacted with the belt conveyor to the company That end by the belt conveying pusher side for the part of continuous sheet material carried by the sheet material supporting part opposite with the cutting part Length on the conveying direction, the full-length than cutting the single sheet of material obtained after the continuous sheet are small.
5. the conveyance control method of continuous sheet according to claim 3 or 4, which is characterized in that
When obtaining the runout information, the display elements being located on the continuous sheet are examined using detection means It surveys, so that the runout information is obtained,
From the position of the continuous sheet detected by the detection means to the continuous sheet by with the cutting part phase Pair sheet material supporting part carrying part that end by the belt conveying pusher side length on the conveying direction, than 2 times for cutting the full-length of the single sheet of material obtained after the continuous sheet are small.
6. the conveyance control method of continuous sheet according to any one of claim 1 to 4, which is characterized in that
The conveyance control method of the continuous sheet also includes
When conveying the continuous sheet towards the cutting part, by first delivery section, second delivery section and in institute The third delivery section being arranged on conveying direction between first delivery section and the elastic adjustment portion is stated to be conveyed,
Change the third delivery section to the conveying speed of the continuous sheet based on the runout information.
7. the conveyance control method of continuous sheet according to claim 6, which is characterized in that
The conveyance control method of the continuous sheet also includes is arranged in first delivery section and institute on the conveying direction The adhesive applicating portion stated between third delivery section will be on adhesive applicating to the continuous sheet.
8. the conveyance control method of continuous sheet according to any one of claim 1 to 4, which is characterized in that
When obtaining the runout information, the display elements being located on the continuous sheet are clapped using video camera It takes the photograph, obtains the runout information based on the display elements taken.
9. a kind of disconnecting device, which is the disconnecting device of the continuous sheet of absorbent commodity, which is characterized in that
The disconnecting device includes:
Cutting part, the cutting part cut the continuous sheet for being equipped with the display elements repeatedly between display elements;
First delivery section, first delivery section convey the continuous sheet towards the cutting part along conveying direction;
Second delivery section, second delivery section are arranged on the conveying direction than first delivery section on the upstream side Position conveys the continuous sheet along the conveying direction, controls the tension of the continuous sheet;
First delivery section and described second defeated is arranged in elastic adjustment portion, the elastic adjustment portion on the conveying direction It send between portion;
Runout information acquisition unit, the runout information acquisition unit is for obtaining the deviation that the display elements deviate from base position Information;
Location information acquisition unit, the location information acquisition unit are used to obtain the location information of the elastic adjustment portion;
Control unit, the control unit change first conveying based on the runout information obtained by the runout information acquisition unit Portion is to the conveying speed of the continuous sheet, based on the runout information obtained by the runout information acquisition unit and by institute's rheme The location information of information acquiring section acquirement is set, changes second delivery section to the conveying speed of the continuous sheet, makes second Delivery section controls the tension.
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