WO2002070213A1 - Device and method for cutting and removing web - Google Patents

Device and method for cutting and removing web Download PDF

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Publication number
WO2002070213A1
WO2002070213A1 PCT/JP2001/001652 JP0101652W WO02070213A1 WO 2002070213 A1 WO2002070213 A1 WO 2002070213A1 JP 0101652 W JP0101652 W JP 0101652W WO 02070213 A1 WO02070213 A1 WO 02070213A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
loop
cutting
die
air
Prior art date
Application number
PCT/JP2001/001652
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroshi Takayama
Original Assignee
Zuiko Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zuiko Corporation filed Critical Zuiko Corporation
Priority to US10/275,131 priority Critical patent/US20030159558A1/en
Priority to EP01908277A priority patent/EP1364757A4/en
Priority to CN01803730.5A priority patent/CN1128700C/en
Priority to JP2002569362A priority patent/JPWO2002070213A1/en
Priority to PCT/JP2001/001652 priority patent/WO2002070213A1/en
Publication of WO2002070213A1 publication Critical patent/WO2002070213A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure

Definitions

  • the present invention relates to a cutting and removing apparatus and a cutting and removing method for forming a through hole having a predetermined shape in a single-layered or laminated sheet.
  • a method using a die roll which is called a die roll
  • the power roll rolls out a sheet-like material between itself and the anvil roll.
  • the prior art does not disclose a method of discarding the die-cut portion (die cut position). If the die-cut portion is not properly disposed of, the die-cut portion may become clogged with a die roll or the like, which may require frequent cleaning, which may reduce the operation rate of the apparatus.
  • Japanese Patent Laying-Open No. 8-52669 discloses an apparatus for producing a sanitary article from an original sheet by die cutting.
  • a die-cut sanitary product is transferred to a feed roll, and the sanitary product is transported to the next process.
  • the structure of the prior art is not suitable for high-speed operation because the feed roll that sucks and receives the sanitary articles rotates while circumscribing the force roll. Further, since the cut roll performs only suction, the suction holes are easily clogged. Therefore, the operation rate of the equipment decreases.
  • the present invention has been made in view of such a problem, and an object of the present invention is to provide a cutting and removing apparatus and a cutting and removing method that can operate at a high operation rate and operate at high speed. Disclosure of the invention
  • a cutting and removing apparatus includes an anvil roll, a cut roll, and a suction unit.
  • the force roll is arranged at a position circumscribing the anvil roll.
  • the force cutter roll has at least one blade connected in a loop shape for die-cutting the predetermined portion from the sheet-like material.
  • the power roll has an air hole for supplying and exhausting air to a region inside the loop inside the blade, and holds a die-cut portion cut by the blade.
  • the suction unit is provided at a position separated from an outer peripheral surface of the force turtle roll, and sucks the held die release unit.
  • a position circumscribing means that the anvil opening and the cutting roll are parallel to each other, and the cutting roll blade cuts the sheet-like material between the anvil roll and the anvil roll. Means that the anvil roll and cutlery roll are as close or in contact as possible.
  • the cutting and removing method uses the cutting and removing apparatus.
  • the force cutter roll rotates while the sheet-like material is supplied between the two rolls.
  • This method includes the following depressurizing step, die-cutting step, transporting step, pressurizing step, and discharging step performed during one rotation of the force cutter roll.
  • the plurality of air holes in the region inside the loop communicate with the negative pressure chamber, and the air pressure near the surface of the region inside the loop decreases.
  • the blade is in contact with the surface of the anvil roll, and the die-cutting part is die-cut from the sheet-like material by the blade.
  • the mold was sucked into the front of the inner loop, As it is, it is conveyed in the circumferential direction of the force turret roll.
  • the pressurizing step the plurality of air holes in the loop inner region communicate with a positive pressure chamber, and the air pressure near the surface of the loop inner region increases.
  • the discharging step the die-cut portion in the loop inner area is sucked into the suction portion and discharged.
  • the air is supplied to the air holes in the region inside the loop to which the die release portion is adsorbed, so that the air holes are not easily clogged. Therefore, the operation rate of the equipment is improved.
  • the die-cutting portion held on the cut-off roll is sucked and conveyed by the suction portion separated from the surface of the cut-off roll, so that the apparatus can be operated at high speed.
  • the die-cutting part sucked into the suction part may be collected at one place and discarded, or may be reused as a resource.
  • the shape of the through hole formed by stamping out the sheet-like material may be any shape in which a straight line and / or a curve are combined in addition to a circle, an ellipse, and a polygon.
  • the blade of the cut roll has a loop shape, and the blade strength is generally stronger than the non-loop shape.
  • the thickness of the blade of the cutting roll is preferably formed such that the area of the blade in contact with the anvil roll is always substantially constant. This makes it possible to maintain a constant pressure at which the blades of the anvil roll and the cutting roll contact.
  • Alloy tool steel, high speed tool steel, powdered high speed tool steel by HIP or sintering, cemented carbide etc. can be used. Further, the hardness of the cutter roll and the hardness of the anvil roll may be different from each other. ⁇ longevity In order to prolong the life, it is preferable that the hardness of the katsuya roll is larger than the hardness of the anvil roll.
  • the blade may be coated with a diamond-like liquid.
  • the blades are arranged at an equiangular pitch so that the cutting roll rotates with good balance.
  • one or more air holes are provided for one loop area, it is generally preferable that a plurality or a large number of air holes having small openings are provided.
  • the cutting and removing apparatus further includes a negative pressure chamber that becomes a negative pressure and a positive pressure chamber that becomes a positive pressure.
  • the plurality of air holes are set so as to alternately communicate with one of the negative pressure chamber and the positive pressure chamber via at least one passage according to the phase of the power roll. Is done.
  • the area of the opening in the passage communicating with the negative pressure chamber or the positive pressure chamber is preferably equal to or greater than the sum of the cross-sectional areas of the plurality of air holes.
  • phase refers to an angle measured from a reference point.
  • the present invention does not limit the size of the die.
  • the area of the die-cut portion that is, the area of the in-loop region is set to approximately 10 cm 2 to 70 cm 2 . If the area of the above-mentioned die-cut portion is larger than 70 cm 2, it is necessary to make the opening of the suction portion large, so that the suction loss becomes large.
  • the suction unit has a substantially circular opening for sucking the die release unit, and the diameter of the opening is the length of the blade along the rotation direction of the cutter roll. It is set to approximately 1 to 5 times the length.
  • the suction unit will not be able to suck the die-cut part, or the suction loss will be large.
  • the surface of the in-loop region of the force cutter roll projects radially outward of the cutting roll from the outer surface of the blade.
  • the air between the die-cutting portion and the surface of the power roll is sucked, so that in the preferred embodiment set as described above, the air pressure in the region inside the loop is reduced.
  • the sheet can be lowered as quickly as possible, and the sheet can be easily supplied between the cutter roll and the anvil roll.
  • the cutting and removing apparatus includes an ampill roll, a power turtle roll, a suction device, an air supply device, and a duct.
  • the power roll is disposed at a position to circumscribe the anvil roll.
  • the force cutter roll has a blade connected in a loop for cutting the predetermined portion.
  • the force cutter roll has an air hole in a region inside the loop inside the blade.
  • the suction device may be configured such that the in-loop region rotates in a first range having a predetermined phase. In this case, air is sucked from the air holes, and the die-cut portion cut by the blade is adsorbed on the surface of the loop inner region.
  • the air supply device supplies air from the air hole between the loop-in area and the die-cut portion when the loop-in area is rotating in a second range having another predetermined phase.
  • the duct sucks the die-cut portion from outside the power roll and conveys the air together with the air while the loop inner region is rotating in the second range.
  • the suction device has a first chamber connected to the air hole in the first phase range.
  • the air supply device has a second chamber connected to the air hole in the range of the second phase.
  • the two chambers are formed in (defined by) a proximal member proximate to the power roll and are provided separately such that they do not communicate with each other.
  • a cutting and removing method uses the cutting and removing apparatus of the other aspect.
  • the power roll rotates while the sheet-like material is supplied between the two rolls.
  • This method includes the following depressurizing step, die-cutting step, transporting step, pressurizing step, and discharging step performed during one rotation of the force cutter roll.
  • the depressurizing step the plurality of air holes in the region inside the loop communicate with the first chamber to reduce the air pressure near the surface of the region inside the loop.
  • the blade comes into contact with the surface of the anvil roll, and the blade is used to die-cut the die-cut portion from the sheet-like material.
  • the die roll In the transporting step, the die roll is transported in a circumferential direction of the power roll in a state in which the die-cutting portion remains adsorbed on the surface of the loop inner area.
  • the pressurizing step the plurality of air holes in the loop area communicate with the second chamber, and the air pressure near the surface of the loop area increases.
  • sheet-like material J refers to a cloth-like material having a large area with respect to its thickness. It is a concept that may be wound and continuous, and includes semi-finished products such as sanitary napkins, disposable diapers, and pants.
  • FIG. 1 is an exploded perspective view schematically showing a cutting and removing apparatus according to a first embodiment of the present invention
  • FIG. 2 is a side view of the cutting and removing apparatus
  • FIG. 3 is a longitudinal sectional view of a cutter roll partially omitted
  • FIG. 5 is a layout view of a cutting and removing apparatus showing a second embodiment
  • FIG. 5 is a plan view of an anvil roll.
  • 1 to 3 show a first embodiment.
  • a continuous sheet-like material that is, a tube 3 is supplied between an anvil roll 1 and a cut roll 2.
  • the web 3 passes between the cutter roll 2 and the anvil roll 1, the web 3 is formed in a predetermined portion (the cutout 31 is formed).
  • the through hole 30 is formed with a predetermined bite.
  • the power roll 2 is disposed at a position so as to circumscribe the anvil roll 1.
  • the force cutter roll 2 has, for example, a plurality of blades 20.
  • the blades 20 are used to die-cut the die-cutting part 31 and are connected in a loop.
  • the large-diameter flange portion 23 formed on the cutter roll 2 circumscribes the anvil roll 1.
  • the flange portion 23 stabilizes the rotation of the cutting roll 2 and protects the blade 2.
  • First and second fixing members (proximity members) 61 and 62 are disposed at both ends of the cut roll 2, and both fixing members 61 and 62 are fixed to a frame (not shown). .
  • the power roll 2 has a large number of air holes 22 formed in a loop inner region 21 inside the blade 20. As shown in FIG. 3, each air hole 22 is formed in the radial direction of the cut roll 2, and opens outward in the loop inner region 21, and as described later, The die release section 31 is sucked and held in the loop area 2 1. As shown in FIG. 1, the present cutting and removing apparatus includes a suction device 4 and an air supply device 5 described below.
  • a plurality of communication paths 24 connected to the air holes 22 are formed in the power roll 2 in parallel with each other in the axial direction. As shown in FIG. 3, one end of the communication passage 24 is closed by a first fixing plate 61. On the other hand, the other end of the communication passage 24 communicates with a negative pressure chamber (first chamber) 41 or a positive pressure chamber (second chamber) 51 formed in the second fixed plate 62.
  • the negative pressure chamber 41 and the positive pressure chamber 51 are separated such that they do not communicate with each other. It communicates with pressure source 7.
  • the pneumatic pressure source 7 includes a pump, a tank, an ejector, and the like (not shown). The air in the negative pressure chamber 41 is sucked through the pipe member 42 and the air is sucked through the pipe member 52. Supply pressurized air into the positive pressure chamber 51.
  • the air hole 22 communicates with the negative pressure chamber 41 via the communication passage 24.
  • the first suction device 4 sucks air from the air hole 22 to cause the die-cutting portion 31 cut out by the blade 20 to be adsorbed on the surface of the loop inner region 21.
  • the air hole 22 is connected to the positive pressure chamber 51 through the communication passage 24.
  • the air supply device 5 pressurizes air between the loop inner region 21 and the die-cutting portion 31 through the air hole 22.
  • a tapered hood portion 81 connected to the duct 80 is arranged close to the force turtle roll 2.
  • the duct 80 communicates with a pneumatic source 82 that sucks air in the duct 80.
  • the pneumatic source 82 may also be used as the pneumatic source 7.
  • the duct 80 and the hood 81 constitute a suction unit 8. While the loop inner area 21 is rotating in the second area 02, the suction unit 8 sucks the die-cutting part 31 into the duct 80 from outside the force turtle roll 2. Convey with air.
  • the force-taper roll 2 rotates, so that the force-taper roll 2 rotates once, and the following pressure-reducing step is performed. Die-cutting process, transporting process, pressurizing process and discharging process are performed.
  • the process proceeds to the decompression step.
  • the pressure reducing step the plurality of air holes 22 in the loop inner region 21 communicate with the negative pressure chamber 41 via the communication passage 24, and air is sucked from the air holes 22 by the pneumatic source 7. Is done. Therefore, the air pressure near the surface of the in-loop region 21 gradually decreases.
  • the process enters the die-cutting step.
  • the blade 20 comes into contact with the surface of the anvil roll 1, and the die-cutting part 31 (FIG. 1) is formed from the sheet-like material 3 between the blade 20 and the anvil roll 1. It is cut and die-cut.
  • the stamped portion 31 is attracted to the loop area 21.
  • the die release section 31 is transported in the circumferential direction of the cut roll 2 with the rotation of the anvil roll 1 in a state in which the die release section 31 remains adsorbed on the surface of the loop inner area 21.
  • the next pressurizing step is started.
  • the plurality of air holes 22 in the loop inner region 21 communicate with the positive pressure chamber 51 via the communication passage 24, and the air pressure source 7 compresses the air holes 22. Air is pumped, and the air pressure near the surface of the loop area 21 rises.
  • the die-cutting part 31 of the inner region 21 of the loop becomes easy to separate from the surface of the cut-off roll 2, and the die-cutting part 31 becomes a hood part 8.
  • the air is sucked into the duct 80 together with air from the suction port 83 of 1 and discharged.
  • the respective steps are executed one after another for each of the loop areas 21. 30 are stamped and formed at a predetermined pitch.
  • the anvil roll 1 is rotatable.
  • the air holes 22 are unlikely to be clogged, and there is no possibility that the mold release portion 31 is clogged in the loop inner region 21.
  • the hood portion 81 that opens at a position separated from the cutout hole 2 sucks the die-cutting portion 31, so that the device can be operated at high speed.
  • the area of the opening 25 opening toward 51 and the cross-sectional area of the communication passage 24 are preferably set to be equal to or greater than the sum of the cross-sectional areas of the plurality of air holes 22 communicating with the communication passage 24. .
  • the number of the communication paths 24 with respect to one loop area 21 may be one or more.
  • the first and second ranges 0 1, ⁇ 2 in FIG. 2 are set so that one loop area 21 does not communicate with both the negative pressure chamber 41 and the positive pressure chamber 51 at the same time.
  • the area of the die-cutting part 31, that is, the area of the in-loop region 21 in FIG. 3 is set to 10 cm 2 to 70 era 2 .
  • the surface of the in-loop region 1 protrudes slightly outward in the radial direction of the cut roll 2 from the surface of the cut roll 2 outside the blade 20. .
  • the volume of air between the die-cutting portion 31 and the surface of the power roll 2 in the loop inner region 21 becomes smaller, and the time required for decompression can be reduced.
  • the diameter D of the suction port 83 of the hood portion 81 is not less than the length of the blade 20 in the rotation direction of the power roll 2 and the length of the length 20 It is mainly set to 5 times lower than Note that a cover and a door 100 may be provided to cover the cut roll 2 and the like so that dust and dust do not enter.
  • a through hole 30 may be formed in the discontinuous sheet-like material 3.
  • the anvil roll 1 is provided with a holding portion 10 for holding the sheet-like material 3.
  • the holding unit 10 may be configured by an arm or the like that presses the sheet-like material 3 on the surface of the anvil roll 1, but the holding unit 10 generally has many air holes 12, A roll with an air suction function is preferably used, similar to the cut roll 2.
  • the transfer drums 13 and 14 may be used as a means for supplying and transferring the web 3.
  • the cutting roll 2 may be provided with only one blade 20.
  • the flange 23 need not be provided.
  • the pneumatic pressure source 7 and the pneumatic pressure source 82 may be shared.
  • This invention can be employ

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

A method of cutting and removing a web (3), characterized by comprising the steps of forming through-holes (30) in the web (3) between an anvil roll (1) and loop blades (20) of a cutter roll (2), sucking punched out parts (31) into the loop areas (21) of the cutter roll (2), blowing air from air holes (22) in loop areas (21), and sucking the punched out parts (31) into a duct (80) and discharging to the outside.

Description

明糸田書  Akitoda
切断除去装置および方法  Cutting and removing apparatus and method
技術分野  Technical field
本発明は、 単層のまたは積層されたシ一 ト状物に所定形状の貫 通孔を形成する切断除去装置および切断除去方法に関する。  The present invention relates to a cutting and removing apparatus and a cutting and removing method for forming a through hole having a predetermined shape in a single-layered or laminated sheet.
背景技術  Background art
シー ト状物に貫通孔を形成する方法の一つとしては、 ダイカツ 夕と呼ばれるカツ夕ロールを用いる方法が知られている （たとえ ば、 特開平 8 - 7 1 9 9 9号、 同 1 1一 1 8 8 6 9 8号公報） 。 前記力ッ夕ロールは、 アンビルロールとの間でシ一 ト状物を型抜 きする。 しかし、 前記先行技術では、 型抜きされた型抜部分 （ダ ィカッ トポ一シヨ ン） の廃棄方法については、 何ら開示されてい ない。 前記型抜部分が適切に廃棄されないと、 カツ夕ロールのダ ィなどに前記型抜部分が詰まり、 そのため、 頻繁に清掃を行う必 要が生じて、 装置の稼動率が低下する場合がある。  As one of the methods for forming a through hole in a sheet-like material, a method using a die roll, which is called a die roll, is known. No. 1,886,988). The power roll rolls out a sheet-like material between itself and the anvil roll. However, the prior art does not disclose a method of discarding the die-cut portion (die cut position). If the die-cut portion is not properly disposed of, the die-cut portion may become clogged with a die roll or the like, which may require frequent cleaning, which may reduce the operation rate of the apparatus.
一方、 特開平 8 — 5 2 6 9 6号公報には、 原反シー トからサニ タ リ一用品を型抜きして生成する装置が開示されている。 この先 行技術では、 型抜きされたサニタリ一用品が送りロールに渡され て、 サニタ リー用品が次工程に搬送される。  On the other hand, Japanese Patent Laying-Open No. 8-52669 discloses an apparatus for producing a sanitary article from an original sheet by die cutting. In this advanced technology, a die-cut sanitary product is transferred to a feed roll, and the sanitary product is transported to the next process.
しかし、 サニタ リ一用品を吸着して受け取る前記送りロールが 力ッタロールに外接しながら回転するので、 前記先行技術の構造 は高速運転に不向きである。 また、 カツ夕ロールが吸引のみを行 うので、 吸引孔が目詰まりし易い。 したがって、 装置の稼動率が 低下する。  However, the structure of the prior art is not suitable for high-speed operation because the feed roll that sucks and receives the sanitary articles rotates while circumscribing the force roll. Further, since the cut roll performs only suction, the suction holes are easily clogged. Therefore, the operation rate of the equipment decreases.
本発明はかかる問題に鑑みてなされたもので、 その目的は、 装 置の稼動率が高く、 かつ、 高速運転が可能な切断除去装置およ' 切断除去方法を提供することである。 発明の開示 The present invention has been made in view of such a problem, and an object of the present invention is to provide a cutting and removing apparatus and a cutting and removing method that can operate at a high operation rate and operate at high speed. Disclosure of the invention
前記目的を達成するために、 本発明の一つの態様によれば、 切 断除去装置はァンビルロール、 カツ夕ロールおよび吸引部を備え ている。  In order to achieve the above object, according to one aspect of the present invention, a cutting and removing apparatus includes an anvil roll, a cut roll, and a suction unit.
前記力ッタロールは前記ァンビルロールに外接するような位置 に配置されている。 前記力ッタロールは前記シー ト状物から前記 所定の部分を型抜きするためのループ状に連なった少なく とも 1 つの刃を有する。 前記力ッ夕ロールは前記刃の内側のループ内領 域に空気を給排気するための空気孔を有すると共に、 前記刃で型 抜きされた型抜部を保持する。 前記吸引部は前記力ッタロールの 外周面から離間した位置に設けられ、 前記保持された型抜部を吸 引する。  The force roll is arranged at a position circumscribing the anvil roll. The force cutter roll has at least one blade connected in a loop shape for die-cutting the predetermined portion from the sheet-like material. The power roll has an air hole for supplying and exhausting air to a region inside the loop inside the blade, and holds a die-cut portion cut by the blade. The suction unit is provided at a position separated from an outer peripheral surface of the force turtle roll, and sucks the held die release unit.
本発明において、 「外接するような位置」 とは、 アンビル口一 ルとカツ夕ロールとが互いに平行で、 かつ、 カツ夕ロールの刃が アンビルロールとの間でシー ト状物を型抜きすることができる程 度に、 アンビルロールとカツ夕ロールとが近接ないし接触してい ることを意味する。  In the present invention, the term "a position circumscribing" means that the anvil opening and the cutting roll are parallel to each other, and the cutting roll blade cuts the sheet-like material between the anvil roll and the anvil roll. Means that the anvil roll and cutlery roll are as close or in contact as possible.
本発明の一つの態様によれば、 切断除去方法は前記切断除去装 置を用いる。 この方法では、 前記 2つのロールの間に前記シー ト 状物が供給されながら前記力ッタロールが回転する。 この方法は 前記力ッタロールが 1 回転する間に行われる下記の減圧工程、 型 抜工程、 搬送工程、 加圧工程および排出工程を含む。  According to one aspect of the present invention, the cutting and removing method uses the cutting and removing apparatus. In this method, the force cutter roll rotates while the sheet-like material is supplied between the two rolls. This method includes the following depressurizing step, die-cutting step, transporting step, pressurizing step, and discharging step performed during one rotation of the force cutter roll.
前記減圧工程では、 前記ループ内領域の複数の空気孔が負圧室 に連通して前記ループ内領域の表面付近の気圧が低下する。 前記 型抜工程では、 前記刃が前記ァンビルロールの表面に接して当該 刃により前記シ一 ト状物から前記型抜部が型抜きされる。 前記瘢 送工程では、 前記型抜都が前 P,ループ内铕城の宪而に吸羞 れた ままの状態で前記力ッタロールの周方向に搬送される。 前記加圧 工程では、 前記ループ内領域の複数の空気孔が正圧室に連通して 前記ループ内領域の表面付近の気圧が上昇する。 前記排出工程で は、 前記ループ内領域の前記型抜部が前記吸引部の内部に吸引さ れて排出される。 In the depressurizing step, the plurality of air holes in the region inside the loop communicate with the negative pressure chamber, and the air pressure near the surface of the region inside the loop decreases. In the die-cutting step, the blade is in contact with the surface of the anvil roll, and the die-cutting part is die-cut from the sheet-like material by the blade. In the scarring process, the mold was sucked into the front of the inner loop, As it is, it is conveyed in the circumferential direction of the force turret roll. In the pressurizing step, the plurality of air holes in the loop inner region communicate with a positive pressure chamber, and the air pressure near the surface of the loop inner region increases. In the discharging step, the die-cut portion in the loop inner area is sucked into the suction portion and discharged.
本発明によれば、 型抜部を吸着したループ内領域の空気孔にェ ァ一が供給されるので、 前記空気孔が目詰まり し難い。 したがつ て、 装置の稼動率が向上する。  According to the present invention, the air is supplied to the air holes in the region inside the loop to which the die release portion is adsorbed, so that the air holes are not easily clogged. Therefore, the operation rate of the equipment is improved.
また、 カツ夕ロール上に保持した型抜部が、 前記カツ夕ロール の表面から離間した吸引部により吸い込まれて搬送されるから、 装置の高速運転が可能である。  In addition, the die-cutting portion held on the cut-off roll is sucked and conveyed by the suction portion separated from the surface of the cut-off roll, so that the apparatus can be operated at high speed.
本発明において、 吸引部に吸い込まれた型抜部は、 一箇所に集 められて廃棄されてもよいし、 あるいは、 資源として再利用され てもよい。  In the present invention, the die-cutting part sucked into the suction part may be collected at one place and discarded, or may be reused as a resource.
本発明において、 シ一 ト状物が型抜きされて形成される貫通孔 の形状は、 円、 楕円、 多角形の他に、 直線および または曲線が 組み合わされたいかなる形状であってもよい。  In the present invention, the shape of the through hole formed by stamping out the sheet-like material may be any shape in which a straight line and / or a curve are combined in addition to a circle, an ellipse, and a polygon.
カツ夕ロールの刃はループ状になつており、 ループ状でない刃 よりも刃の強度が一般に強い。  The blade of the cut roll has a loop shape, and the blade strength is generally stronger than the non-loop shape.
カツ夕ロールの刃の厚みは、 アンビルロールに接触する刃の面 積が常時概ね一定となるように形成されるのが好ましい。 これに より、 アンビルロールとカツ夕ロールの刃とが接触する圧力を一 定に保つことが可能となる。  The thickness of the blade of the cutting roll is preferably formed such that the area of the blade in contact with the anvil roll is always substantially constant. This makes it possible to maintain a constant pressure at which the blades of the anvil roll and the cutting roll contact.
カツ夕ロールおよびアンビルロールの材質としては、 主として The main materials for Katsuyu Roll and Anvil Roll are
、 合金工具鋼、'高速度工具鋼、 H I Pや焼結による粉末高速度ェ 具鋼、 超硬合金などを使用するこ とができる。 また、 カツタロー ルとアンビルロールの硬度は互いに異なっていてもよい。 ¾の寿 命を長くするために、 ァンビルロールの硬度より もカツ夕ロール の硬度の方が大きいのが好ましい。 , Alloy tool steel, high speed tool steel, powdered high speed tool steel by HIP or sintering, cemented carbide etc. can be used. Further, the hardness of the cutter roll and the hardness of the anvil roll may be different from each other.寿 longevity In order to prolong the life, it is preferable that the hardness of the katsuya roll is larger than the hardness of the anvil roll.
また、 前記刃はダイヤモン ドライク力一ボンによってコーティ ングされていてもよい。  Further, the blade may be coated with a diamond-like liquid.
また、 前記刃が 2以上設けられる場合には、 カツ夕ロールがバ ランス良く回転するように、 前記刃が等角度ピツチで配置される のが好ましい。  When two or more blades are provided, it is preferable that the blades are arranged at an equiangular pitch so that the cutting roll rotates with good balance.
前記排出工程における前記吸引部の吸込口と前記刃との距離が 接近している程、 吸引部が型抜部を安定して吸い込むことができ る。 しかし、 両者が接近しすぎていると、 型.抜部が刃に引っ掛か り、 この型抜部が前記吸込口付近に絡み付き、 吸引部や刃が損傷 し易い。 したがって、 前記距離は、 一般に、 5 mm〜 4 5 mmに設定 するのが好ましい。  The closer the distance between the suction port of the suction section and the blade in the discharging step, the more the suction section can more stably suck the mold release section. However, if they are too close together, the mold release part is caught by the blade, and the die release part becomes entangled near the suction port, and the suction part and the blade are easily damaged. Therefore, it is generally preferable to set the distance to 5 mm to 45 mm.
前記空気孔は 1つのループ内領域について 1以上設けられるが 、 一般に、 小さな開口を有する空気孔が複数ないし多数設けられ るのが好ましい。  Although one or more air holes are provided for one loop area, it is generally preferable that a plurality or a large number of air holes having small openings are provided.
本発明の好適な実施例においては、 負圧になる負圧室と正圧に なる正圧室とを、 前記切断除去装置が更に備える。 この場合、 前 記複数の空気孔は、 前記力ッ夕ロールの位相に応じて、 少なく と も 1つの通路を介して前記負圧室および正圧室の一方に交互に連 通するように設定される。 前記通路における前記負圧室又は正圧 室に連通する開口部の面積は、 前記複数の空気孔の断面積の和以 上であるのが好ましい。  In a preferred embodiment of the present invention, the cutting and removing apparatus further includes a negative pressure chamber that becomes a negative pressure and a positive pressure chamber that becomes a positive pressure. In this case, the plurality of air holes are set so as to alternately communicate with one of the negative pressure chamber and the positive pressure chamber via at least one passage according to the phase of the power roll. Is done. The area of the opening in the passage communicating with the negative pressure chamber or the positive pressure chamber is preferably equal to or greater than the sum of the cross-sectional areas of the plurality of air holes.
上記のように面積が設定されることにより、 ループ内領域の表 面付近に、 負圧室の負圧や正圧室の正圧が効率良く作用する。 本発明において、 「位相」 とは、 基準点から測った角度をい'う 本発明は前記型抜部の大きさを限定しない。 しかし、 本発明の 好適な実施例においては、 前記型抜部の面積が、 つまり、 ループ 内領域の面積が、 概ね 1 0 cm2 〜 7 0 cm2 程度に設定される。 前 記型抜部の面積が 7 0 cm2 よりも大きくなると、 吸引部の開口を 大き くする必要があり、 そのため、 吸引ロスが大き くなる。 By setting the area as described above, the negative pressure in the negative pressure chamber and the positive pressure in the positive pressure chamber act efficiently near the surface of the loop inner region. In the present invention, “phase” refers to an angle measured from a reference point. The present invention does not limit the size of the die. However, in a preferred embodiment of the present invention, the area of the die-cut portion, that is, the area of the in-loop region is set to approximately 10 cm 2 to 70 cm 2 . If the area of the above-mentioned die-cut portion is larger than 70 cm 2, it is necessary to make the opening of the suction portion large, so that the suction loss becomes large.
本発明の他の好適な実施例においては、 前記吸引部が前記型抜 部を吸引するための略円形の開口を有し、 前記開口の直径が前記 カツタロールの回転方向に沿った前記刃の長さの概ね 1倍〜 5倍 に設定される。  In another preferred embodiment of the present invention, the suction unit has a substantially circular opening for sucking the die release unit, and the diameter of the opening is the length of the blade along the rotation direction of the cutter roll. It is set to approximately 1 to 5 times the length.
吸引部の開口が刃に比べ大きすぎると、 吸引部が型抜部を吸引 できなかったり、 あるいは、 吸引ロスが大きくなる。  If the opening of the suction unit is too large compared to the blade, the suction unit will not be able to suck the die-cut part, or the suction loss will be large.
本発明の更に他の好適な実施例においては、 前記力ッタロール のループ内領域の表面が、 前記刃の外側の表面より も前記カツ夕 ロールの径方向の外方に突出している。 前記ループ内領域におい ては、 前記型抜部と力ッ夕ロール表面との間のエアーが吸引され るので、 前述のように設定された好適な実施例においては、 前記 ループ内領域の気圧を可及的速やかに低下させることができると 共に、 カツタロールとアンビルロールとの間に、 シート状物を容 易に供給することができる。  In still another preferred embodiment of the present invention, the surface of the in-loop region of the force cutter roll projects radially outward of the cutting roll from the outer surface of the blade. In the region inside the loop, the air between the die-cutting portion and the surface of the power roll is sucked, so that in the preferred embodiment set as described above, the air pressure in the region inside the loop is reduced. The sheet can be lowered as quickly as possible, and the sheet can be easily supplied between the cutter roll and the anvil roll.
一方、 本発明の他の態様によれば、 切断除去装置は、 アンピル ロール、 力ッタロール、 吸引装置、 給気装置およびダク トを備え ている。  On the other hand, according to another aspect of the present invention, the cutting and removing apparatus includes an ampill roll, a power turtle roll, a suction device, an air supply device, and a duct.
前記力ッ夕ロールは前記ァンビルロールに外接するような位置 に配置されている。 前記力ッタロールは前記所定の部分を型抜き するためのループ状に連なつた刃を有する。 前記力ッタロールに は前記刃の内側のループ内領域に空気孔が形成されている。 前記 吸引装置は、 前記ループ内領域が所定の位相の第 1範囲を回転し ているときに、 前記空気孔から空気を吸引して、 前記刃で型抜き された型抜部を当該ループ内領域の表面に吸着させる。 前記給気 装置は、 前記ループ内領域が他の所定の位相の第 2範囲を回転し ているときに、 前記空気孔から前記ループ内領域と前記型抜部と の間に空気を供給する。 前記ダク トは、 前記ループ内領域が第 2 範囲を回転しているときに、 前記型抜部を前記力ッ夕ロールの外 方から吸引してエアーと共に搬送する。 The power roll is disposed at a position to circumscribe the anvil roll. The force cutter roll has a blade connected in a loop for cutting the predetermined portion. The force cutter roll has an air hole in a region inside the loop inside the blade. The suction device may be configured such that the in-loop region rotates in a first range having a predetermined phase. In this case, air is sucked from the air holes, and the die-cut portion cut by the blade is adsorbed on the surface of the loop inner region. The air supply device supplies air from the air hole between the loop-in area and the die-cut portion when the loop-in area is rotating in a second range having another predetermined phase. The duct sucks the die-cut portion from outside the power roll and conveys the air together with the air while the loop inner region is rotating in the second range.
本発明の好適な実施例においては、 前記第 1 の位相の範囲にお いて前記空気孔に連なる第 1 の室を前記吸引装置が有する。 前記 給気装置は前記第 2の位相の範囲において前記空気孔に連なる第 2の室を有する。 前記 2つの室は前記力ッ夕ロールに近接する近 接部材に形成され （によって定義され） 、 かつ、 互いに連通しな いように分離して設けられている。  In a preferred embodiment of the present invention, the suction device has a first chamber connected to the air hole in the first phase range. The air supply device has a second chamber connected to the air hole in the range of the second phase. The two chambers are formed in (defined by) a proximal member proximate to the power roll and are provided separately such that they do not communicate with each other.
本発明の他の態様によれば、 切断除去方法は、 前記他の態様の 切断除去装置を用いる。 この方法では、 前記 2つのロールの間に 前記シー ト状物が供給されながら前記力ッ夕ロールが回転する。 この方法は前記力ッタロールが 1回転する間に行われる下記の減 圧工程、 型抜工程、 搬送工程、 加圧工程および排出工程を含む。 前記減圧工程では、 前記ループ内領域の複数の空気孔が前記第 1 の室に連通して前記ループ内領域の表面付近の気圧を低下させ る。 前記型抜工程では、 前記刃が前記アンビルロールの表面に接 して当該刃により前記シ一 ト状物から前記型抜部を型抜きする。 前記搬送工程では、 前記型抜部が前記ループ内領域の表面に吸着 されたままの状態で前記力ッ夕ロールの周方向に搬送される。 前 記加圧工程では、 前記ループ内領域の複数の空気孔が前記第 2の 室に連通して前記ループ内領域の表面付近の気圧が上昇する。 '前 記排出ェ稈では、 前記ループ內頜域の前 ϊΡ. ¾ϊ ¾ ¾ ^ Φ ^ it tir 記ダク ト内に吸い込まれて排出される。 According to another aspect of the present invention, a cutting and removing method uses the cutting and removing apparatus of the other aspect. In this method, the power roll rotates while the sheet-like material is supplied between the two rolls. This method includes the following depressurizing step, die-cutting step, transporting step, pressurizing step, and discharging step performed during one rotation of the force cutter roll. In the depressurizing step, the plurality of air holes in the region inside the loop communicate with the first chamber to reduce the air pressure near the surface of the region inside the loop. In the die-cutting step, the blade comes into contact with the surface of the anvil roll, and the blade is used to die-cut the die-cut portion from the sheet-like material. In the transporting step, the die roll is transported in a circumferential direction of the power roll in a state in which the die-cutting portion remains adsorbed on the surface of the loop inner area. In the pressurizing step, the plurality of air holes in the loop area communicate with the second chamber, and the air pressure near the surface of the loop area increases.で は In the drainage culm described above, the 前. 內 頜 ¾ ^ Φ ^ it tir It is sucked into the duct and discharged.
なお、 本発明において、 「シート状物 J とは、 厚みに対して面 積の大きな布帛状のものをいい、 フィルムゃ布帛の他に繊維の積 層体などを含み、 ゥヱブのようにロールに巻かれて連続していて もよく、 また、 生理用ナプキンや使い捨てォムッ又はパンツの半 製品を含む概念である。 図面の簡単な説明  In the present invention, the term “sheet-like material J” refers to a cloth-like material having a large area with respect to its thickness. It is a concept that may be wound and continuous, and includes semi-finished products such as sanitary napkins, disposable diapers, and pants.
本発明は、 添付の図面を参考にした以下の好適な実施例の説明 からより明瞭に理解されるであろう。 しかしながら、 実施例およ ぴ図面は単なる図示および説明のためのものであり、 本発明の範 囲を定めるために利用されるべきものではない。 本発明の範囲は 請求の範囲によって定まる。 添付図面において、 複数の図面にお ける同一の部品番号は、 同一または相当部分を示す。  The present invention will be more clearly understood from the following description of the preferred embodiments with reference to the accompanying drawings. However, the examples and drawings are merely for illustration and description, and should not be used to define the scope of the present invention. The scope of the present invention is defined by the appended claims. In the accompanying drawings, the same part number in multiple drawings indicates the same or corresponding part.
図 1 は本発明の第 1 実施例を示す切断除去装置の概略を示す分 解斜視図、 図 2は同側面レイアウ ト図、 図 3はカツタロールの一 部省略した縦断面図、 図 4は第 2実施例を示す切断除去装置のレ ィアウ ト図、 図 5はアンビルロールの平面図である。 発明を実施するための最良の形態  FIG. 1 is an exploded perspective view schematically showing a cutting and removing apparatus according to a first embodiment of the present invention, FIG. 2 is a side view of the cutting and removing apparatus, FIG. 3 is a longitudinal sectional view of a cutter roll partially omitted, and FIG. FIG. 5 is a layout view of a cutting and removing apparatus showing a second embodiment, and FIG. 5 is a plan view of an anvil roll. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明の実施例が図面にしたがって説明される。  Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第 1実施例 ：  First embodiment:
図 1 ないし図 3は第 1実施例を示す。  1 to 3 show a first embodiment.
図 1 において、 アンビルロール 1 とカツ夕ロール 2との間には 、 連続したシー ト状物、 つまり、 ゥヱブ 3が供給される。 前記ゥ エブ 3が前記カツタロール 2 とアンビルロール 1 との間を通過'す ることで、 該ウェブ 3は所定の部分 （型抜都 3 1 が型栊 され 、 貫通孔 3 0が所定のビツチで形成される。 In FIG. 1, a continuous sheet-like material, that is, a tube 3 is supplied between an anvil roll 1 and a cut roll 2. When the web 3 passes between the cutter roll 2 and the anvil roll 1, the web 3 is formed in a predetermined portion (the cutout 31 is formed). The through hole 30 is formed with a predetermined bite.
前記力ッ夕ロール 2は前記ァンビルロール 1 に外接するような 位置に配置されている。 前記力ッタロール 2はたとえば複数の刃 2 0を有する。 前記刃 2 0は、 前記型抜部 3 1 を型抜きするため のもので、 ループ状に連なっている。 本実施例では、 カツタロー ル 2に形成した径大なフランジ部 2 3がアンビルロール 1 に外接 している。 なお、 フランジ部 2 3はカツ夕ロール 2の回転を安定 させて、 前記刃 2 ひを保護する。  The power roll 2 is disposed at a position so as to circumscribe the anvil roll 1. The force cutter roll 2 has, for example, a plurality of blades 20. The blades 20 are used to die-cut the die-cutting part 31 and are connected in a loop. In this embodiment, the large-diameter flange portion 23 formed on the cutter roll 2 circumscribes the anvil roll 1. In addition, the flange portion 23 stabilizes the rotation of the cutting roll 2 and protects the blade 2.
カツ夕ロール 2の両端には第 1 および第 2の固定部材 （近接部 材） 6 1 , 6 2が配置されており、 両固定部材 6 1 , 6 2は図示 しないフ レームに固定されている。  First and second fixing members (proximity members) 61 and 62 are disposed at both ends of the cut roll 2, and both fixing members 61 and 62 are fixed to a frame (not shown). .
前記力ッ夕ロール 2には、 前記刃 2 0の内側のループ内領域 2 1 に多数の空気孔 2 2が形成されている。 図 3に明示するように 、 各空気孔 2 2は、 カツ夕ロール 2の径方向に穿設されており、 ループ内領域 2 1 において外方に向って開口しており、 後述する ように、 ループ内領域 2 1 に型抜部 3 1 を吸着して保持させる。 図 1 に示すように、 本切断除去装置は、 以下に説明する吸引装 置 4および給気装置 5を備えている。  The power roll 2 has a large number of air holes 22 formed in a loop inner region 21 inside the blade 20. As shown in FIG. 3, each air hole 22 is formed in the radial direction of the cut roll 2, and opens outward in the loop inner region 21, and as described later, The die release section 31 is sucked and held in the loop area 2 1. As shown in FIG. 1, the present cutting and removing apparatus includes a suction device 4 and an air supply device 5 described below.
' 前記力ッ夕ロール 2には、 前記空気孔 2 2に連なる複数本の連 通路 2 4が軸方向に互いに平行に穿設されている。 図 3に示すよ うに、 前記連通路 2 4の一端は第 1 の固定板 6 1 によって閉塞さ れている。 一方、 前記連通路 2 4の他端は、 第 2の固定板 6 2に 形成された負圧室 （第 1 の室） 4 1 または正圧室 （第 2の室） 5 1 に連通する。  A plurality of communication paths 24 connected to the air holes 22 are formed in the power roll 2 in parallel with each other in the axial direction. As shown in FIG. 3, one end of the communication passage 24 is closed by a first fixing plate 61. On the other hand, the other end of the communication passage 24 communicates with a negative pressure chamber (first chamber) 41 or a positive pressure chamber (second chamber) 51 formed in the second fixed plate 62.
前記負圧室 4 1 および正圧室 5 1 は、 互いに連通しないよう'に 分離されている *に- IM 1 の配管材 4 2 . 5 9 か ^ ^して Φ 圧源 7に連通している。 空圧源 7は図示しないポンプ、 タンク、 ェジェクタなどを備えており、 前記負圧室 4 1 内のエアーを前記 配管材 4 2を介して吸引すると共に、 前記配管材 5 2を介して前 記正圧室 5 1 内に加圧空気を供給する。 The negative pressure chamber 41 and the positive pressure chamber 51 are separated such that they do not communicate with each other. It communicates with pressure source 7. The pneumatic pressure source 7 includes a pump, a tank, an ejector, and the like (not shown). The air in the negative pressure chamber 41 is sucked through the pipe member 42 and the air is sucked through the pipe member 52. Supply pressurized air into the positive pressure chamber 51.
図 2の前記ループ内領域 2 1が所定の位相の第 1範囲 0 1 を回 転しているときに、 空気孔 2 2が連通路 2 4を介して負圧室 4 1 に連通し、 図 1 の吸引装置 4は前記空気孔 2 2から空気を吸引し て前記刃 2 0で型抜きされた型抜部 3 1 を当該ループ内領域 2 1 の表面に吸着させる。  When the in-loop region 21 of FIG. 2 is rotating in the first range 01 of a predetermined phase, the air hole 22 communicates with the negative pressure chamber 41 via the communication passage 24. The first suction device 4 sucks air from the air hole 22 to cause the die-cutting portion 31 cut out by the blade 20 to be adsorbed on the surface of the loop inner region 21.
図 3の前記ループ内領域 2 1が他の所定の位相の第 2範囲 0 2 (図 2 ) を回転しているときに、 空気孔 2 2が連通路 2 4を介し て正圧室 5 1 に連通し、 給気装置 5は、 前記空気孔 2 2を介して 、 前記ループ内領域 2 1 と前記型抜部 3 1 との間に空気を圧送す る  When the in-loop region 21 of FIG. 3 is rotating in the second range 02 of another predetermined phase (FIG. 2), the air hole 22 is connected to the positive pressure chamber 51 through the communication passage 24. The air supply device 5 pressurizes air between the loop inner region 21 and the die-cutting portion 31 through the air hole 22.
図 2に示すように、 前記力ッタロール 2にはダク ト 8 0に連な るテ一パ状のフ一 ド部 8 1が近接して配置されている。 前記ダク ト 8 0は、 ダク ト 8 0内の空気を吸引する空圧源 8 2に連通して いる。 なお、 空圧源 8 2は空圧源 7 と兼用してもよい。 前記ダク ト 8 0およびフー ド部 8 1 は吸引部 8を構成している。 前記ルー プ内領域 2 1が前記第 2範囲 0 2を回転している際に、 前記吸引 部 8は前記型抜部 3 1 を前記力ッタロール 2の外方からダク ト 8 0内に吸い込んでエア一と共に搬送する。  As shown in FIG. 2, a tapered hood portion 81 connected to the duct 80 is arranged close to the force turtle roll 2. The duct 80 communicates with a pneumatic source 82 that sucks air in the duct 80. Note that the pneumatic source 82 may also be used as the pneumatic source 7. The duct 80 and the hood 81 constitute a suction unit 8. While the loop inner area 21 is rotating in the second area 02, the suction unit 8 sucks the die-cutting part 31 into the duct 80 from outside the force turtle roll 2. Convey with air.
つぎに、 切断除去方法について説明する。  Next, the cutting and removing method will be described.
前記 2つのロール 1 , 2.の間に前記シ一 ト状物 3を供給しなが ら前記力ッタロール 2が回転することで、 前記力ッタロール 2が 1 回転する間に、 下記の減圧工程、 型抜工程、 搬送工程、 加圧'ェ 程および排出工程が行われる カツ夕ロール 2が回転して、 前記ループ内領域 2 1が前記第 i 範囲 0 1 に到達すると、 前記減圧工程に入る。 前記減圧工程では 、 前記ループ内領域 2 1 の複数の空気孔 2 2が連通路 2 4を介し て負圧室 4 1 に連通し、 前記空圧源 7により当該空気孔 2 2から エアーが吸引される。 そのため、 前記ループ内領域 2 1 の表面付 近の気圧が次第に低下する。 While the sheet-like material 3 is being supplied between the two rolls 1 and 2, the force-taper roll 2 rotates, so that the force-taper roll 2 rotates once, and the following pressure-reducing step is performed. Die-cutting process, transporting process, pressurizing process and discharging process are performed. When the cut roll 2 rotates and the in-loop region 21 reaches the i-th range 01, the process proceeds to the decompression step. In the pressure reducing step, the plurality of air holes 22 in the loop inner region 21 communicate with the negative pressure chamber 41 via the communication passage 24, and air is sucked from the air holes 22 by the pneumatic source 7. Is done. Therefore, the air pressure near the surface of the in-loop region 21 gradually decreases.
つづいて、 ループ内領域 2 1がアンビルロール 1 の表面に近接 すると、 前記型抜工程に入る。 前記型抜工程では、 前記刃 2 0が アンビルロール 1 の表面に接して、 当該刃 2 0 とアンビルロール 1 との間で前記シー ト状物 3から前記型抜部 3 1 (図 1 ) が切断 されて型抜きされる。 この型抜部 3 1 は前記ループ内領域 2 1 に 吸着される。  Subsequently, when the in-loop region 21 approaches the surface of the anvil roll 1, the process enters the die-cutting step. In the die-cutting step, the blade 20 comes into contact with the surface of the anvil roll 1, and the die-cutting part 31 (FIG. 1) is formed from the sheet-like material 3 between the blade 20 and the anvil roll 1. It is cut and die-cut. The stamped portion 31 is attracted to the loop area 21.
前記搬送工程において、 前記型抜部 3 1 は前記ループ内領域 2 1 の表面に吸着されたままの状態で、 アンビルロール 1 の回転に 伴ってカツ夕ロール 2の周方向に搬送される。  In the transporting step, the die release section 31 is transported in the circumferential direction of the cut roll 2 with the rotation of the anvil roll 1 in a state in which the die release section 31 remains adsorbed on the surface of the loop inner area 21.
さらに、 カツ夕ロール 2が回転し続け、 前記ループ内領域 2 1 が前記第 2範囲 2に到達すると、 次の加圧工程に入る。 前記加 圧工程においては、 前記ループ内領域 2 1 の複数の空気孔 2 2が 連通路 2 4を介して正圧室 5 1 に連通し、 前記空圧源 7が当該空 気孔 2 2に圧縮空気を圧送し、 前記ループ内領域 2 1 の表面付近 の気圧が上昇する。  Further, when the roll 2 continues to rotate and the in-loop region 21 reaches the second range 2, the next pressurizing step is started. In the pressurizing step, the plurality of air holes 22 in the loop inner region 21 communicate with the positive pressure chamber 51 via the communication passage 24, and the air pressure source 7 compresses the air holes 22. Air is pumped, and the air pressure near the surface of the loop area 21 rises.
前記排出工程においては、 前記気圧の上昇に伴って前記 ープ 内領域 2 1 の前記型抜部 3 1 がカツ夕ロール 2の表面から離れ易 くなり、 当該型抜部 3 1 がフード部 8 1 の吸込口 8 3から空気と 共にダク ト 8 0内に吸い込まれで排出される。  In the discharging step, as the air pressure increases, the die-cutting part 31 of the inner region 21 of the loop becomes easy to separate from the surface of the cut-off roll 2, and the die-cutting part 31 becomes a hood part 8. The air is sucked into the duct 80 together with air from the suction port 83 of 1 and discharged.
前記力ッタロール 2が連続的に回転するのに伴い、 前記各工' が各ループ内領域 2 1 ごとに次々 と実行され- ゥ .ブ S 曾《?ί. 3 0が所定のピッチで型抜きされて形成される。 なお、 アンビル ロール 1 は回転可能になっている。 As the force turtle roll 2 rotates continuously, the respective steps are executed one after another for each of the loop areas 21. 30 are stamped and formed at a predetermined pitch. The anvil roll 1 is rotatable.
ここで、 本切断除去方法によれば、 図 3の型抜部 3 1 がダク ト Here, according to the present cutting and removing method, the die cutting portion 31 in FIG.
8 0内に吸い込まれる際に、 空気孔 2 2から圧縮エアーが吹き出 す。 したがって、 空気孔 2 2が目詰まり しにく く、 また、 ループ 内領域 2 1 に型抜部 3 1 が詰まるおそれもない。 また、 カツ夕口 ール 2から離間した位置で開口するフー ド部 8 1 が型抜部 3 1 を 吸い込むので、 装置の高速運転が可能になる。 When sucked into 80, compressed air blows out from air hole 22. Therefore, the air holes 22 are unlikely to be clogged, and there is no possibility that the mold release portion 31 is clogged in the loop inner region 21. In addition, the hood portion 81 that opens at a position separated from the cutout hole 2 sucks the die-cutting portion 31, so that the device can be operated at high speed.
本装置において、 連通路 2 4における負圧室 4 1 または正圧室 In this device, the negative pressure chamber 41 or the positive pressure chamber
5 1 に向って開口する開口部 2 5の面積や連通路 2 4の横断面積 は、 当該連通路 2 4に連通する複数の空気孔 2 2の断面積の和以 上に設定するのが好ましい。 また、 1つのループ内領域 2 1 に対 する連通路 2 4の数は、 1本または複数本のいずれでもよいが、The area of the opening 25 opening toward 51 and the cross-sectional area of the communication passage 24 are preferably set to be equal to or greater than the sum of the cross-sectional areas of the plurality of air holes 22 communicating with the communication passage 24. . The number of the communication paths 24 with respect to one loop area 21 may be one or more.
1つのループ内領域 2 1が同時に負圧室 4 1 および正圧室 5 1 の 双方に連通しないように、 図 2の第 1 および第 2範囲 0 1 , Θ 2 が設定される。 The first and second ranges 0 1, Θ 2 in FIG. 2 are set so that one loop area 21 does not communicate with both the negative pressure chamber 41 and the positive pressure chamber 51 at the same time.
また、 型抜部 3 1 の面積は、 つまり、 図 3のループ内領域 2 1 の面積は、 1 0 cm2 〜 7 0 era2 に設定されるのが好ましい。 It is preferable that the area of the die-cutting part 31, that is, the area of the in-loop region 21 in FIG. 3 is set to 10 cm 2 to 70 era 2 .
本装置において、 ループ内領域 1 の表面は、 刃 2 0の外側の カツ夕ロール 2の表面よりも、 カツ夕ロール 2の径方向の外方に 向って若干厶 Hだけ突出しているのが好ましい。 これにより、 ル —プ内領域 2 1 における型抜部 3 1 と力ッ夕ロール 2の表面との 間のエアーの容量が小さ くなつて、 減圧に必要な時間が短縮され 得る。  In this apparatus, it is preferable that the surface of the in-loop region 1 protrudes slightly outward in the radial direction of the cut roll 2 from the surface of the cut roll 2 outside the blade 20. . As a result, the volume of air between the die-cutting portion 31 and the surface of the power roll 2 in the loop inner region 21 becomes smaller, and the time required for decompression can be reduced.
図 2に示すように、 フー ド部 8 1 の吸込口 8 3の直径 Dは、 力 ッ夕ロール 2の回転方向の刃 2 0の長さ以上とし、 かつ、 当該' ¾ 2 0の長さの 5倍 下に設定されるのが籽主しい なお、 ゴミゃほこりが入らないように、 カツ夕ロール 2などを 覆うカバーおよび扉 1 0 0が設けられてもよい。 As shown in FIG. 2, the diameter D of the suction port 83 of the hood portion 81 is not less than the length of the blade 20 in the rotation direction of the power roll 2 and the length of the length 20 It is mainly set to 5 times lower than Note that a cover and a door 100 may be provided to cover the cut roll 2 and the like so that dust and dust do not enter.
第 2実施例 ：  Second embodiment:
図 4および図 5 は第 2実施例を示す。  4 and 5 show a second embodiment.
図 4に示すように、 本装置において、 不連続なシー ト状物 3に 貫通孔 3 0が形成されてもよい。 この場合、 図 5に示すように、 アンビルロール 1 にはシー ト状物 3を保持するための保持部 1 0 が設けられる。 保持部 1 0は、 アンビルロール 1 の表面にシー ト 状物 3を押さえ付けるアームなどで構成されてもよいが、 前記保 持部 1 0は、 一般に、 空気孔 1 2を多数有し、 前記カツ夕ロール 2 と同様に、 エアーによる吸着機能を備えたものが好適に採用さ れる  As shown in FIG. 4, in this apparatus, a through hole 30 may be formed in the discontinuous sheet-like material 3. In this case, as shown in FIG. 5, the anvil roll 1 is provided with a holding portion 10 for holding the sheet-like material 3. The holding unit 10 may be configured by an arm or the like that presses the sheet-like material 3 on the surface of the anvil roll 1, but the holding unit 10 generally has many air holes 12, A roll with an air suction function is preferably used, similar to the cut roll 2.
なお、 この場合、 保持部 1 0 と刃 2 0 との位置や、 アンビル口 —ル 1 とカツ夕ロール 2 との位相は、 所定の関係とする必要があ る。 また、 ウェブ 3の供給および移送の手段としては、 転写ドラ ム 1 3 , 1 4が用いられてもよい。  In this case, the positions of the holding portion 10 and the blade 20 and the phases of the anvil port 1 and the cutting roll 2 need to have a predetermined relationship. The transfer drums 13 and 14 may be used as a means for supplying and transferring the web 3.
その他の構成は第 1実施例と同様であり、 同一部分もしく は相 当部分に同一符号を付して、 その詳しい説明が省略される。  Other configurations are the same as those of the first embodiment, and the same or corresponding portions are denoted by the same reference characters, and detailed description thereof will be omitted.
以上のとおり、 図面を参照しながら好適な実施形態が説明され たが、 当業者は、 本明細書を見て、 自明な範囲で種々の変更およ び修正を容易に想定するであろう。  As described above, the preferred embodiment has been described with reference to the drawings. However, those skilled in the art will easily envisage various changes and modifications within the obvious scope by referring to the present specification.
たとえば、 2個以上の複数の刃は等角度ピッチ配置される必要 はない。 カツ夕ロール 2には前記刃 2 0が 1本だけ設けられても よい。 フランジ部 2 3は設けられる必要がない。 また、 空圧源 7 と空圧源 8 2 とが兼用されてもよい。  For example, two or more blades need not be equiangularly pitched. The cutting roll 2 may be provided with only one blade 20. The flange 23 need not be provided. Further, the pneumatic pressure source 7 and the pneumatic pressure source 82 may be shared.
したがって、 そのような変更および修正は、 請求の範囲から'定 まる本発明の範囲内のものと解釈される 産業上の利用可能性 Accordingly, such changes and modifications are to be construed as falling within the scope of the invention as defined by the appended claims. Industrial applicability
本発明は、 シー ト状物に貫通孔を連続的に形成する高速機に採 用することができる。  INDUSTRIAL APPLICATION This invention can be employ | adopted for the high-speed machine which forms a through-hole continuously in a sheet-like material.

Claims

請求 の 範 囲 The scope of the claims
1 . シー ト状物の所定の部分に貫通孔を形成する切断除去装置で あって、 前記装置が ： 1. A cutting and removing device for forming a through hole in a predetermined portion of a sheet-like material, wherein the device is:
アンビルロール ；  Anvil rolls;
前記ァンビルロールに外接するような位置に配置された力ッ夕 ロール ； 前記力ッ夕ロールは前記シー ト状物から前記所定の部分 を型抜きするためのループ状に連なった少なく とも 1つの刃を有 し、 前記カツ夕ロールは前記刃の内側のループ内領域に空気を給. 排気するための空気孔を有すると共に、 前記刃で型抜きされた型 抜部を保持し、 そして、  A power roll disposed at a position circumscribing the anvil roll; the power roll includes at least one blade connected in a loop for die-cutting the predetermined portion from the sheet-like material. And the cut roll supplies air to a region inside the loop inside the blade. The cut roll has an air hole for exhausting and holds a die cut portion cut by the blade, and
前記力ッタロールの外周面から離間した位置に設けられ、 前記 保持された型抜部を吸引する吸引部 ；  A suction unit provided at a position separated from the outer peripheral surface of the force cutter roll, and for suctioning the held die release unit;
を備えている。  It has.
2 . 負圧になる負圧室と正圧になる正圧室とを更に備え、  2. It is further provided with a negative pressure chamber which becomes negative pressure and a positive pressure chamber which becomes positive pressure.
前記空気孔が複数設けられ、 前記空気孔は、 前記ループ内領域 の位相に応じて、 少なく とも 1つの通路を介して前記負圧室およ び正圧室の一方に交互に連通することが可能であり、  A plurality of the air holes may be provided, and the air holes may alternately communicate with one of the negative pressure chamber and the positive pressure chamber via at least one passage according to a phase of the loop inner region. Is possible,
前記通路における前記負圧室又は正圧室に連通する開口部の面 積が、 前記 1つのループ内領域に設けた複数の空気孔の断面積の 和以上である  The area of the opening in the passage communicating with the negative pressure chamber or the positive pressure chamber is equal to or greater than the sum of the cross-sectional areas of the plurality of air holes provided in the one loop area.
請求項 1 に記載の切断除去装置。  The cutting and removing device according to claim 1.
3 . 前記ループ内領域の面積が概ね 1 0 cm2 〜 7 0 cm2 に設定さ れた 3. The area of the loop region is set substantially to 1 0 cm 2 ~ 7 0 cm 2
請求項 1 に記載の切断除去装置。  The cutting and removing device according to claim 1.
4 . 前記吸引部は前記型抜部を吸引するための略円形に開口じた 吸 i入□ 有し- 前言 入 Πの直 が前言?. * 、、， 々 n― ;1, rr. rnl -ir rin に沿った前記刃の長さの概ね 1倍〜 5倍に設定された 4. The suction part has a substantially circular opening for suctioning the die-cutting part. The suction part has the above-mentioned description. -ir rin About 1 to 5 times the length of the blade along
請求項 1 に記載の切断除去装置。  The cutting and removing device according to claim 1.
5 . 前記ループ内領域の表面は、 前記カツ夕ロールにおける前記 刃の外側の表面より も前記力ッ夕ロールの径方向の外方に突出し ている  5. The surface of the loop inner region protrudes radially outward of the power roll from the outer surface of the blade in the cut roll.
請求項 1 に記載の切断除去装置。  The cutting and removing device according to claim 1.
6 . 請求項 1 に記載の切断除去装置を用いた切断除去方法であつ て、  6. A cutting and removing method using the cutting and removing apparatus according to claim 1,
前記 2つのロールの間に前記シー ト状物が供給されながら前記 カツ夕ロールが回転し、 前記カツタロールが 1回転する間に行わ れる下記の減圧工程、 型抜工程、 搬送工程、 加圧工程および排出 工程を含む、  The cutting roll rotates while the sheet-like material is supplied between the two rolls, and the following depressurizing step, die cutting step, transporting step, pressurizing step, and the following are performed while the cutter roll rotates once. Including the discharge process,
前記減圧工程では、 前記ループ内領域の空気孔が負圧室に連通 して前記ループ内領域の表面付近の気圧が低下し、  In the decompression step, the air holes in the loop area communicate with a negative pressure chamber, and the air pressure near the surface of the loop area decreases,
前記型抜工程では、 前記刃が前記ァンビルロールの表面に接し て当該刃により前記シ一 ト状物から前記型抜部が型抜きされ、 前記搬送工程では、 前記型抜部が前記ループ内領域の表面に吸 着されたままの状態で前記力ッ夕ロールの周方向に搬送され、 前記加圧工程では、 前記ループ内領域の空気孔が正圧室に連通 して前記ループ内領域の表面付近の気圧が上昇し、  In the die-cutting step, the blade is in contact with the surface of the anvil roll, and the die is die-cut from the sheet-like material by the blade. In the pressurizing step, the air holes in the loop inner region communicate with a positive pressure chamber in the vicinity of the surface of the loop inner region while being conveyed in the circumferential direction of the power roll while being adsorbed on the surface. Pressure rises,
前記排出工程では、 前記ループ内領域の前記型抜部が前記吸引 部の内部に吸引されて排出される。  In the discharging step, the die-cut portion in the loop inner region is sucked into the suction portion and discharged.
7 . シー ト状物から所.定の部分を型抜きして除去する切断除去装 置であって、 前記装置は、  7. A cutting and removing device for removing a predetermined portion from a sheet-like material by die-cutting, wherein the device comprises:
アンビルロール ；  Anvil rolls;
前記ァンビルロールに外接するような位置に配置された力ッタ 口 一ソし ： 前雷?.力 、" ク ロ一 ）しは前言 P. ^ の A 刑 ォスチ A ループ状に連なった刃を有し、 前記力ッタロールには前記刃の内 側のループ内領域に空気孔が形成され、 A power station located at a position circumscribing the anvil roll: Mouth: A thundering force. An air hole is formed in a region inside the loop on the inner side of the blade in the force tta roll,
前記ループ内領域が所定の位相の第 1範囲を回転しているとき に、 前記空気孔から空気を吸引して、 前記刃で型抜きされた型抜 部を当該ループ内領域の表面に吸着させる吸引装置 ；  When the in-loop region is rotating in a first range of a predetermined phase, air is sucked from the air hole, and the die-cut portion cut by the blade is adsorbed on the surface of the in-loop region. Suction device;
前記ループ内領域が他の所定の位相の第 2範囲を回転している ときに、 前記空気孔から前記ループ内領域と前記型抜部との間に 空気を供給する給気装置 ； そして、  An air supply device that supplies air from the air hole to the space between the loop inside region and the die-cut portion when the loop inside region is rotating in a second range of another predetermined phase; and
前記ループ内領域が前記第 2範囲を回転しているときに、 前記 型抜部を前記力ッタロールの外方から吸引してエアーと共に搬送 するダク ト ； 該ダク トは前記カツ夕ロールの外周面から離間した 吸込口  A duct for sucking the die-cut portion from outside of the power cutter roll and transporting it together with air when the loop inner area is rotating in the second range; the duct is an outer peripheral surface of the cutting roll; Suction port separated from
を備えている。  It has.
8 . 前記ループ内領域が前記第 1範囲を回転しているときに前記 空気孔に連なる第 1 の室を、 前記吸引装置が有し、  8. The suction device has a first chamber connected to the air hole when the region in the loop is rotating in the first range,
前記ループ内領域が前記第 2範囲を HI転しているときに前記空 気孔に連なる第 2の室を、 前記給気装置が有し、  The air supply device has a second chamber connected to the air hole when the region in the loop is performing HI rotation in the second range,
前記 2つの室は前記力ッ夕ロールに近接する近接部材に形成さ れ、 かつ、 互いに連通しないように分離して設けられている 請求項 7に記載の切断除去装置。  8. The cutting and removing apparatus according to claim 7, wherein the two chambers are formed in a proximity member close to the power roll, and are provided separately so as not to communicate with each other.
9 . 請求項 8に記載の切断除去装置を用いた切断除去方法であつ て、  9. A cutting and removing method using the cutting and removing device according to claim 8,
前記 2つのロールの間に前記シー ト状物が供給されながら前記 カツ夕ロールが回転し、 前記カツ夕ロールが 1 回転する間に行わ れる下記の減圧工程、 型抜工程、 搬送工程、 加圧工程および排出 工程を含む、 ' 前記减; Ϊ工程では、 前 ΪΡ,ループ内領铖の^ ^ ? i. ^ tfr l^笛 1 に連通して前記ループ内領域の表面付近の気圧が低下し、 前記型抜工程では、 前記刃が前記ァンビルロールの表面に接し て当該刃により前記シ一 ト状物から前記型抜部が型抜きされ、 前記搬送工程では、 前記型抜部が前記ループ内領域の表面に吸 着されたままの状態で前記力ッ夕ロールの周方向に搬送され、 前記加圧工程では、 前記ループ内領域の空気孔が前記第 2の室 に連通して前記ループ内領域の表面付近の気圧が上昇し、 The cut roll rotates while the sheet-like material is supplied between the two rolls, and the following depressurizing step, die cutting step, transporting step, pressurizing performed while the cut roll rotates once. Including the process and the discharge process, the above-mentioned Ϊ; 、 process, the previous ΪΡ, the loop in the area ^ ^? I. ^ Tfr l ^ whistle 1 In the die-cutting step, the blade comes into contact with the surface of the anvil roll and the die-cut portion is cut from the sheet-like material by the blade. In the transporting step, the die-cut portion is transported in a circumferential direction of the power roll in a state in which the die-cut portion is still adsorbed on the surface of the loop inner area. The air hole communicates with the second chamber, and the air pressure near the surface of the inner region of the loop increases,
前記排出工程では、 前記ループ内領域の前記型抜部が空気と共 に前記ダク ト内に吸い込まれて排出される。  In the discharging step, the die-cut portion in the loop inner region is sucked into the duct together with air and discharged.
PCT/JP2001/001652 2001-03-02 2001-03-02 Device and method for cutting and removing web WO2002070213A1 (en)

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US10/275,131 US20030159558A1 (en) 2001-03-02 2001-03-02 Cut and removal apparatus and method
EP01908277A EP1364757A4 (en) 2001-03-02 2001-03-02 Device and method for cutting and removing web
CN01803730.5A CN1128700C (en) 2001-03-02 2001-03-02 Device and method for cutting and removing
JP2002569362A JPWO2002070213A1 (en) 2001-03-02 2001-03-02 Cutting and removing apparatus and method
PCT/JP2001/001652 WO2002070213A1 (en) 2001-03-02 2001-03-02 Device and method for cutting and removing web

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WO2004101237A1 (en) * 2003-05-14 2004-11-25 Windmöller & Hölscher Kg Cutting and transport cylinder in a winding device for winding material webs
JP2006015485A (en) * 2004-07-02 2006-01-19 Sandvik Intellectual Property Hb Rotary cutter drum and rotary cutter unit equipped with the rotary cutter drum
JP2007106423A (en) * 2005-10-11 2007-04-26 Tokiwa Kogyo Kk Lateral sealer, pillow packaging device, and shrink package
JP2008237796A (en) * 2007-03-29 2008-10-09 Daio Paper Corp Product cutter unit for absorbent article
JP2009161566A (en) * 2009-04-24 2009-07-23 Kyukyu Yakuhin Kogyo Kk Method of forming oral dosage layer
WO2010089964A1 (en) 2009-02-03 2010-08-12 株式会社瑞光 Method of manufacturing disposable wearing article and device for manufacturing the disposable wearing article
WO2011010567A1 (en) * 2009-07-21 2011-01-27 ユニ・チャーム株式会社 Cutting device for absorbent article band body
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JP2013248212A (en) * 2012-06-01 2013-12-12 Zuiko Corp Apparatus for manufacturing disposable wearing article, and method of using the apparatus
CN104552427A (en) * 2015-01-29 2015-04-29 苏州安洁科技股份有限公司 Cutter cavity waste discharge rolling cutter
WO2015145838A1 (en) * 2014-03-27 2015-10-01 ユニ・チャーム株式会社 Cutter device for composite sheet of absorbent article, manufacturing apparatus for absorbent article, and method for cutting composite sheet of absorbent article
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WO2004101237A1 (en) * 2003-05-14 2004-11-25 Windmöller & Hölscher Kg Cutting and transport cylinder in a winding device for winding material webs
US7967176B2 (en) 2003-05-14 2011-06-28 Windmoeller & Hoelscher Kg Cutting and transport cylinder in a winding device for winding material webs
JP2006015485A (en) * 2004-07-02 2006-01-19 Sandvik Intellectual Property Hb Rotary cutter drum and rotary cutter unit equipped with the rotary cutter drum
JP2007106423A (en) * 2005-10-11 2007-04-26 Tokiwa Kogyo Kk Lateral sealer, pillow packaging device, and shrink package
JP4557860B2 (en) * 2005-10-11 2010-10-06 トキワ工業株式会社 Pillow packaging device and shrink package
JP2008237796A (en) * 2007-03-29 2008-10-09 Daio Paper Corp Product cutter unit for absorbent article
WO2010089964A1 (en) 2009-02-03 2010-08-12 株式会社瑞光 Method of manufacturing disposable wearing article and device for manufacturing the disposable wearing article
JP2009161566A (en) * 2009-04-24 2009-07-23 Kyukyu Yakuhin Kogyo Kk Method of forming oral dosage layer
JP2011025321A (en) * 2009-07-21 2011-02-10 Uni Charm Corp Cutting device for absorbent article band body
WO2011010567A1 (en) * 2009-07-21 2011-01-27 ユニ・チャーム株式会社 Cutting device for absorbent article band body
WO2013089009A1 (en) * 2011-12-14 2013-06-20 花王株式会社 Cutting device
JP2013123504A (en) * 2011-12-14 2013-06-24 Kao Corp Cutting device
JP2013248212A (en) * 2012-06-01 2013-12-12 Zuiko Corp Apparatus for manufacturing disposable wearing article, and method of using the apparatus
WO2015145838A1 (en) * 2014-03-27 2015-10-01 ユニ・チャーム株式会社 Cutter device for composite sheet of absorbent article, manufacturing apparatus for absorbent article, and method for cutting composite sheet of absorbent article
CN104552427A (en) * 2015-01-29 2015-04-29 苏州安洁科技股份有限公司 Cutter cavity waste discharge rolling cutter
KR102008871B1 (en) * 2018-12-06 2019-10-21 (주)하나기술 Electrode notching system for secondary battery comprising vacuum roller
JP2021041518A (en) * 2019-09-06 2021-03-18 王磊 High-efficiency die-cutting equipment for absorptive cotton
CN115229872A (en) * 2022-07-27 2022-10-25 广东中烟工业有限责任公司 A interior slip sheet window cutting device that opens for YB45 type hard box packagine machine

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EP1364757A1 (en) 2003-11-26
CN1400933A (en) 2003-03-05
JPWO2002070213A1 (en) 2004-07-02
CN1128700C (en) 2003-11-26
EP1364757A4 (en) 2004-05-12

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