EP3401066A1 - Rollenschneideeinheit, insbesondere für bandmaterialien - Google Patents

Rollenschneideeinheit, insbesondere für bandmaterialien Download PDF

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Publication number
EP3401066A1
EP3401066A1 EP18171151.6A EP18171151A EP3401066A1 EP 3401066 A1 EP3401066 A1 EP 3401066A1 EP 18171151 A EP18171151 A EP 18171151A EP 3401066 A1 EP3401066 A1 EP 3401066A1
Authority
EP
European Patent Office
Prior art keywords
roller
cutter
ribbon
anvil
rollers
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP18171151.6A
Other languages
English (en)
French (fr)
Other versions
EP3401066B1 (de
Inventor
Bignami Giorgio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rca Bignami Srl
Original Assignee
Rca Bignami Srl
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 Rca Bignami Srl filed Critical Rca Bignami Srl
Publication of EP3401066A1 publication Critical patent/EP3401066A1/de
Application granted granted Critical
Publication of EP3401066B1 publication Critical patent/EP3401066B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/08Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628Means for adjusting the position of the cutting member
    • B26D7/265Journals, bearings or supports for positioning rollers or cylinders relatively to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38Cutting-out; Stamping-out
    • B26F1/384Cutting-out; Stamping-out using rotating drums

Definitions

  • the present invention relates to a roller cutter unit, particularly for ribbon materials.
  • the present cutter unit is particularly designed for cutting or punching ribbon materials used for manufacturing sanitary pads, bandages and similar products.
  • the process for manufacturing sanitary pads comprises a step of cutting or punching the material used such as an absorbent in the product.
  • Said material can be of various natures and is cut substantially by two types of devices in flat presses and in roller cutter units.
  • the punch In a flat press, the punch is mounted on a mobile plate which presses the material to be cut onto a fixed plate.
  • the punch is mounted on a knife roller and the ribbon material to be cut is made to pass through the knife roller, and a counter-pressure roller called anvil roller.
  • the roller cutter units have the advantage of being able to punch a ribbon shaped material, in a quick and continuous manner.
  • roller cutter units do not allow particularly thick and spongy materials to be cut, such as foam materials, but are instead used for materials with a lesser thickness and deformability, such as non-woven fabrics.
  • the task of the present invention is to implement a roller cutter unit that allows spongy and very thick materials, to be cut or punched.
  • one object of the present disclosure is to implement a roller cutter unit that ensures a complete cut through the entire thickness of the material, as well as for thicker and more compliant materials, such as foam materials.
  • a further object of the present disclosure is to provide a cutter unit that, due to its unique implementation characteristics, is able to ensure the broadest safety and reliability guarantees in use.
  • a roller cutter unit in particular for spongy ribbon materials, characterised in that it comprises a load-bearing frame equipped with support means adapted to support a cutter or anvil roller arranged between a first anvil or cutter roller and a second anvil or cutter roller; said rollers having parallel rotation axes; said anvil or cutter roller being motorised and dragging said anvil or cutter rollers into rotation when a ribbon is inserted between said anvil or cutter roller and said anvil or cutter rollers; said cutter roller having cutting means that incise said ribbon at least twice, during a first passage of the ribbon between the cutter roller and the first anvil roller, and during a second passage of said ribbon between the cutter roller and the second anvil roller; said cutting means of the cutter roller being arranged on the cutter roller so that in the second passage of the ribbon, the latter is incised for a second time, in exactly the same point where the incise was carried out during the first passage of the ribbon.
  • the cutter unit comprises a load-bearing frame 2 equipped with support means 3 adapted to support a cutter roller 4, arranged between a first anvil roller 6 and a second anvil roller 5.
  • the rollers 4, 5 and 6 have parallel rotation axes.
  • the cutter roller 4 is motorised and drags the anvil rollers 5 and 6 into rotation when a ribbon 7 is inserted between the cutter roller 4 and the anvil rollers 5 and 6.
  • a cutter unit formed by a cutter roller and by two anvil rollers, however it is clear to the person skilled in the art that the rollers can be inverted and the unit can also be formed by a motorised anvil roller and by two cutter rollers.
  • the cutter roller 4 has cutting means which cut the ribbon 7 at least twice, once during a first passage of the ribbon 7 between the cutter roller 4 and the first anvil roller 6, and again during a second passage of the ribbon 7 between the cutter roller 4 and the second anvil roller 5.
  • the cutting means of the cutter roller 4 are arranged on the cutter roller 4 so that during the second passage, the ribbon 7 is cut for a second time in exactly the same point where the cut was carried out during the first passage.
  • the cutting means of the cutter roller 4 are advantageously implemented through punch inserts, not visible in the figures, mounted on the outer surface of the cutter roller.
  • the punch inserts are appropriately shaped to give the desired cutting pattern and are arranged on the roller so as to carry out the second cut or incision in exactly the same position and with the same pattern as the first cut or incision.
  • the cutting means can also be made in monoblock depending on the various applications.
  • the cutter roller 4 is motorised via a motor 8 associated with the cutter roller 4 itself.
  • the support means 3 of the rollers 4, 5 and 6 are advantageously formed by two pairs of guides along which, the ends of the same rollers can slide, so as to adjust the distance between their axes.
  • the support means 3 are assisted by elastic means 9 which guarantee a correct pressure between the cylinders and the ribbon 7 to be cut or punched.
  • the elastic means 9 are advantageously formed by pneumatic elements, as is shown in the example in the figures.
  • the ribbon 7 to be cut formed by a relatively spongy material, having a thickness of up to approximately 2mm, is inserted between the first anvil roller 6 and the cutter roller 4 which, due to the action of the motor 8, is placed into rotation and drags the ribbon 7 inside the rollers.
  • the ribbon 7 undergoes a first cut or incision and is successively wound around the cutter roller 4 until it is inserted between the same cutter roller 4 and the second anvil roller 5 where the ribbon undergoes a second cut or incision that exactly overlaps the first cut or incision, completing in this manner the punching of the ribbon itself.
  • the punched ribbon then exits from the cutter unit 1.
  • a roller cutter unit has been achieved, particularly designed for the continuous cutting of a ribbon shaped material with a considerable thickness and high deformability, such as spongy foam materials and the like.
  • the cutter unit subject of the present invention allows a spongy foam material to be cut or punched, also with approximately 2mm in thickness, due to the second passage of the material between the same cutter roller and a second anvil roller, where the first cut is repeated exactly in the same position so as that the material is completely cut all the way through.

Landscapes

  • 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)
EP18171151.6A 2017-05-09 2018-05-08 Rollenschneideeinheit, insbesondere für bandmaterialien Active EP3401066B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102017000050040A IT201700050040A1 (it) 2017-05-09 2017-05-09 Gruppo di taglio a rulli, particolarmente per materiali in nastro.

Publications (2)

Publication Number Publication Date
EP3401066A1 true EP3401066A1 (de) 2018-11-14
EP3401066B1 EP3401066B1 (de) 2020-01-01

Family

ID=59812011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18171151.6A Active EP3401066B1 (de) 2017-05-09 2018-05-08 Rollenschneideeinheit, insbesondere für bandmaterialien

Country Status (2)

Country Link
EP (1) EP3401066B1 (de)
IT (1) IT201700050040A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112045727A (zh) * 2020-08-16 2020-12-08 安徽震雄新材料有限公司 一种扎带生产过程中的自动切割装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE842587C (de) * 1950-08-11 1952-06-30 Dornbusch & Co Rapportgetriebe fuer Kalander, insbesondere Praegekalander
US20040149095A1 (en) * 2003-01-27 2004-08-05 Uni-Charm Corporation Rotary cutter and method for manufacturing fibrous product using the same
CN104985632A (zh) * 2015-06-09 2015-10-21 隆扬电子(昆山)有限公司 一种海绵弹性体冲切不变形的生产工艺
US20160176061A1 (en) * 2013-08-01 2016-06-23 Eti Converting Equipment Apparatus and Method for Cutting Facestock
EP3153285A1 (de) * 2015-10-06 2017-04-12 Sandvik Intellectual Property AB Drehschneidevorrichtung mit eingebetteter überwachungseinheit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE842587C (de) * 1950-08-11 1952-06-30 Dornbusch & Co Rapportgetriebe fuer Kalander, insbesondere Praegekalander
US20040149095A1 (en) * 2003-01-27 2004-08-05 Uni-Charm Corporation Rotary cutter and method for manufacturing fibrous product using the same
US20160176061A1 (en) * 2013-08-01 2016-06-23 Eti Converting Equipment Apparatus and Method for Cutting Facestock
CN104985632A (zh) * 2015-06-09 2015-10-21 隆扬电子(昆山)有限公司 一种海绵弹性体冲切不变形的生产工艺
EP3153285A1 (de) * 2015-10-06 2017-04-12 Sandvik Intellectual Property AB Drehschneidevorrichtung mit eingebetteter überwachungseinheit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112045727A (zh) * 2020-08-16 2020-12-08 安徽震雄新材料有限公司 一种扎带生产过程中的自动切割装置

Also Published As

Publication number Publication date
IT201700050040A1 (it) 2018-11-09
EP3401066B1 (de) 2020-01-01

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