EP1040895A2 - Bandsäge zum ununterbrochenen Schneiden von Rollen aus Bahnmaterial - Google Patents

Bandsäge zum ununterbrochenen Schneiden von Rollen aus Bahnmaterial Download PDF

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Publication number
EP1040895A2
EP1040895A2 EP00102850A EP00102850A EP1040895A2 EP 1040895 A2 EP1040895 A2 EP 1040895A2 EP 00102850 A EP00102850 A EP 00102850A EP 00102850 A EP00102850 A EP 00102850A EP 1040895 A2 EP1040895 A2 EP 1040895A2
Authority
EP
European Patent Office
Prior art keywords
cutting
band
log
assembly
band saw
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
EP00102850A
Other languages
English (en)
French (fr)
Other versions
EP1040895B1 (de
EP1040895A3 (de
Inventor
Renato Matteucci
Mauro Biagioni
Giuseppe Lupi
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.)
Paper Converting Machine Co Italia SpA
Original Assignee
Italconverting SpA
Paper Converting Machine Co Italia SpA
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 Italconverting SpA, Paper Converting Machine Co Italia SpA filed Critical Italconverting SpA
Publication of EP1040895A2 publication Critical patent/EP1040895A2/de
Publication of EP1040895A3 publication Critical patent/EP1040895A3/de
Application granted granted Critical
Publication of EP1040895B1 publication Critical patent/EP1040895B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • 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
    • B26D1/00—Cutting 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
    • B26D1/01—Cutting 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
    • B26D1/46—Cutting 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 an endless band-knife or the like
    • 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
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/11—Machines or methods used for cutting special materials for cutting web rolls

Definitions

  • the present invention refers to a band saw for cutting rolls or logs of web material, particularly suitable to be included in a continuous production process.
  • band saws similar to those used for cutting ferrous materials comprising a heavy base, carrying the flywheels and the cutting band, pivotally mounted, driven by hydraulic cylinders.
  • Such a type of saw is extremely complex, difficult to maintain and slow in operation.
  • band saws whose cutting blade is made to advance horizontally toward the logs to be cut conveyed by a conveyor driven by a chain wound on wheels.
  • the object of the invention is to remove these drawbacks, providing a band saw for cutting logs with large diameters, for example from 240 to 520 mm, which is extremely fast, versatile and suitable for a continuous production process.
  • the cutting band which works in an intermediate area of a continuous conveyor, to be made to advance vertically toward the logs to be cut.
  • Use of a continuous conveyor means that loading of a new log can take place even during the period in which the previous log is being cut by the steel band.
  • the feed system is therefore designed so that the cutting band does not interfere with the conveyor.
  • a vertical slot is provided in the supporting guide of the log to allow passage of the cutting blade.
  • Means for holding the log of paper still during cutting are provided. Once cutting has been carried out said means cause the log to withdraw slightly, so as to ensure the return of the cutting blade.
  • the band saw according to the invention can work in a considerably shorter cycle time with respect to the band saws of the prior art, tanks in particular to the fact that the log conveyor advances continuously without making the to and fro movements of the reciprocating conveyors of the prior art.
  • Figure 1 shows a band saw according to the invention, denoted as a whole by reference numeral 100, comprising a cutting assembly 200, to which the rolls of paper or logs 12 are fed by means of a conveyor assembly 300.
  • the cutting assembly 200 comprises a cutting tool 1, normally consisting of a steel band about 1.2 mm thick and 60 mm wide, the side of which is suitably chamfered to form a cutting edge 1'.
  • the band 1 is wound on two flywheels 2 and 3, the flywheel 3 being motorized by an electric or hydraulic motor 4 ( Figure 2b), by means of a cogged belt transmission 5.
  • the flywheel 2 on the other hand, is mounted idle on a sliding support 6 controlled by a hydraulic piston 75 so as to have the band 1 constantly under tension.
  • FIGs 3 and 3a show the conveyor assembly 300 for feeding the logs of paper 12 to the cutting assembly 200.
  • the conveyor assembly 300 comprises a horizontal conveyor 8 formed by a chain or conveyor belt that winds on two wheels or rollers 9 and 10, the roller 10 being motorized.
  • Pusher arms 11, commonly called slaves are secured to the chain 8. Said pusher arms 11 are positioned at a sufficient distance to be able to receive a log of paper for cutting between one pusher arm and the other.
  • the logs of paper 12, pushed by the pusher arms 11, are made to slide on two longitudinal guide surfaces 13 and 14 disposed obliquely to form a V-shaped support as shown in Figure 3.
  • the guide surfaces 13 and 14 have two aligned slits respectively at the side of the cutting assembly 200 to allow passage of the cutting band 1, one of which slits 350 in the guide surface 13 is visible in Figure 1.
  • the conveyor 8 is provided with intermittent pulse movement synchronized with the movement of the cutting assembly 200.
  • the step length of the conveyor 8 is equal to the desired cutting length of the log 12.
  • Loading of a log of paper 12 on the conveyor 8 can also be carried out during the time in which the preceding log is cut by the steel band 1. This is possible by virtue of the fact that the pusher arms 11 can rotate on the cogged wheels 9 and 10 integrally with the chain 8 and do not interfere with the cutting band 1.
  • the flywheels 3 and 4 are supported by a single structure consisting of a frame 15 which can slide vertically on two linear guides 16 and 17 with balls or ball bearings.
  • the guides 16 and 17 are supported by a load-bearing portal 18.
  • the flywheels 3 and 4 are mounted so as to have their axis inclined by 60° with respect to the vertical.
  • the branch of the band 1 that makes the cut is bent by means of blade-guiding cylinders 19 so that it is disposed at right angles to the axis of the log to be cut and obviously parallel to the direction of travel of the flywheel frame 15.
  • blade-guiding cylinders 19 also serve to prevent bending of the band during cutting.
  • This flywheel configuration is such that the branch of the blade not involved in cutting does not interfere with the log of paper, so as to be able to make cuts of any length.
  • a sharpening device 20 consisting of two grinding wheel assemblies driven by air turbines is mounted on the frame 15 that supports the flywheels, on the side of the branch of the band not involved in cutting. In this manner it is possible to carry out sharpening of the band 1 even when said band is cutting.
  • the flywheel supporting frame 15 is driven with a reciprocating vertical movement by means of a screw 21 and nut-screw 22 assembly (Figure 2c) with planetary rollers.
  • the screw 21 is secured rigidly to the frame 15 to be driven and the nut-screw 22 is keyed into a bushing 23 which in turn is mounted by means of rolling-contact bearings 60 in a fixed support 24 integral with the load-bearing portal 18.
  • a cogged pulley 25 on which is wound a cogged belt 26 which transmits the power necessary to drive the flywheel bearing frame 15, provided with an electric motor 27.
  • the speed of the motor 27 can be controlled electronically so as to be able to drive the flywheel bearing frame 15 with reciprocating motion at controlled speed, stroke and acceleration/deceleration.
  • the cutting assembly 200 makes a vertical forward stroke toward the log 12 to be cut, which is conveyed by the conveyor assembly 300; thus the top dead center or end of stroke position can be regulated, as shown in Figure 5, according to the diameter of the log of paper to be cut.
  • Figures 4a-4d show the kinematic motion of the cutting process.
  • the locking device 150 comprises two pressure assemblies 151 and 152, formed respectively by a frame ending in respective plates 160, 161 shaped with a concave shape to be able to compress the surface of the log to be cut.
  • the pressure assemblies 151 and 152 are operated respectively by two pneumatic pistons 153 and 154 that push the plates 160, 161 vertically onto the log of paper. A sufficient gap 155 is left between the two pressure assemblies to allow the passage of the cutting band 1.
  • the pressure assembly 152 can slide horizontally on two linear guides 156 parallel to the conveyor 8.
  • the horizontal movement of the pressure assembly parallel to the conveyor 8 is controlled by a pneumatic piston 157.
  • the piston 157 is operated which allows the pressure assembly 152 to slide a few millimetres on the guides 156. This sliding takes place in the opposite direction to the direction of travel of the logs, in order to move the cut piece 12'' of log in the direction of the arrow F3 ( Figure 4d). In this manner the cutting band 1 is allowed to rise again in the direction of the arrow F4 without interfering with the log of paper.
  • This horizontal movement of the pressure roller 152 is synchronized with the motor of the conveyor 8 that controls a withdrawal of the pusher arms 11 of the same entity.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP20000102850 1999-03-29 2000-02-11 Bandsäge zum ununterbrochenen Schneiden von Rollen aus Bahnmaterial Expired - Lifetime EP1040895B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI990641 1999-03-29
ITMI990641 IT1312032B1 (it) 1999-03-29 1999-03-29 Sega a nastro per il taglio in continuo di rotoli di materiale infoglio.

Publications (3)

Publication Number Publication Date
EP1040895A2 true EP1040895A2 (de) 2000-10-04
EP1040895A3 EP1040895A3 (de) 2002-08-21
EP1040895B1 EP1040895B1 (de) 2005-01-26

Family

ID=11382488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000102850 Expired - Lifetime EP1040895B1 (de) 1999-03-29 2000-02-11 Bandsäge zum ununterbrochenen Schneiden von Rollen aus Bahnmaterial

Country Status (4)

Country Link
EP (1) EP1040895B1 (de)
DE (1) DE60017627T2 (de)
ES (1) ES2235693T3 (de)
IT (1) IT1312032B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10345353A1 (de) * 2003-09-18 2005-04-28 Behringer Gmbh Sägemaschine und Verfahren zur Antriebssteuerung einer Sägemaschine
WO2008062488A1 (en) * 2006-11-24 2008-05-29 Futura S.P.A. Machine for cutting paper logs
ITMI20101580A1 (it) * 2010-08-27 2012-02-28 Gambini Int Sa Dispositivo di taglio per rotoli di materiale nastriforme, in particolare cartaceo
US8167136B2 (en) 2007-12-12 2012-05-01 Futura S.P.A. Device for discarding trims formed during the cutting of paper logs
CN102465386A (zh) * 2010-11-04 2012-05-23 卡尔·迈耶·马里莫纺织机械制造有限责任公司 用于制造单轴向织物或多轴向织物的装置以及方法
CN103042554A (zh) * 2013-01-05 2013-04-17 晋江海纳机械有限公司 一种卷筒纸分切机
IT201800004970A1 (it) * 2018-04-27 2019-10-27 Metodo, impianto e struttura di lama per il taglio di log di carta e simili materiali
RU199501U1 (ru) * 2020-02-07 2020-09-04 Общество с ограниченной ответственностью «Копицентр» Устройство для резки

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5759361B2 (ja) * 2011-12-27 2015-08-05 株式会社アマダホールディングス 帯鋸盤及び帯鋸盤の制御方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049954A (en) * 1957-06-03 1962-08-21 Fmc Corp Apparatus for cutting articles
US3872762A (en) * 1973-09-04 1975-03-25 Hoe & Co R Band saw system
US4111085A (en) * 1977-05-10 1978-09-05 Lockheed Corporation Compound curvature cutting machine
EP0391865A2 (de) * 1989-04-05 1990-10-10 FABIO PERINI S.p.A. Vorrichtung zum Abtrennen von Rollenmaterialabschnitten von einem Rollenmaterial
JPH08216303A (ja) * 1995-02-17 1996-08-27 Kaji Seisakusho:Kk ログペーパー切断装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049954A (en) * 1957-06-03 1962-08-21 Fmc Corp Apparatus for cutting articles
US3872762A (en) * 1973-09-04 1975-03-25 Hoe & Co R Band saw system
US4111085A (en) * 1977-05-10 1978-09-05 Lockheed Corporation Compound curvature cutting machine
EP0391865A2 (de) * 1989-04-05 1990-10-10 FABIO PERINI S.p.A. Vorrichtung zum Abtrennen von Rollenmaterialabschnitten von einem Rollenmaterial
JPH08216303A (ja) * 1995-02-17 1996-08-27 Kaji Seisakusho:Kk ログペーパー切断装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 12, 26 December 1996 (1996-12-26) & JP 08 216303 A (KAJI SEISAKUSHO:KK), 27 August 1996 (1996-08-27) *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10345353A1 (de) * 2003-09-18 2005-04-28 Behringer Gmbh Sägemaschine und Verfahren zur Antriebssteuerung einer Sägemaschine
CN101505930B (zh) * 2006-11-24 2012-05-30 未来股份公司 用于切割纸卷的机器
WO2008062488A1 (en) * 2006-11-24 2008-05-29 Futura S.P.A. Machine for cutting paper logs
JP2010510891A (ja) * 2006-11-24 2010-04-08 フューチュラ エス ピー エー ペーパーログを切断する機械
US8910553B2 (en) 2006-11-24 2014-12-16 Futura S.P.A. Machine for cutting paper logs
US8167136B2 (en) 2007-12-12 2012-05-01 Futura S.P.A. Device for discarding trims formed during the cutting of paper logs
ITMI20101580A1 (it) * 2010-08-27 2012-02-28 Gambini Int Sa Dispositivo di taglio per rotoli di materiale nastriforme, in particolare cartaceo
EP2422942A1 (de) * 2010-08-27 2012-02-29 Gambini International S.A. Schneidvorrichtung für Rollen aus bandförmigem Gut, insbesondere Papier
CN102465386A (zh) * 2010-11-04 2012-05-23 卡尔·迈耶·马里莫纺织机械制造有限责任公司 用于制造单轴向织物或多轴向织物的装置以及方法
CN103042554A (zh) * 2013-01-05 2013-04-17 晋江海纳机械有限公司 一种卷筒纸分切机
CN103042554B (zh) * 2013-01-05 2015-02-04 晋江海纳机械有限公司 一种卷筒纸分切机
IT201800004970A1 (it) * 2018-04-27 2019-10-27 Metodo, impianto e struttura di lama per il taglio di log di carta e simili materiali
WO2019207556A1 (en) * 2018-04-27 2019-10-31 Arrighi Francesco A method, plant and structure of blade for cutting logs of paper and similar material
RU199501U1 (ru) * 2020-02-07 2020-09-04 Общество с ограниченной ответственностью «Копицентр» Устройство для резки

Also Published As

Publication number Publication date
DE60017627T2 (de) 2006-01-05
EP1040895B1 (de) 2005-01-26
DE60017627D1 (de) 2005-03-03
ITMI990641A1 (it) 2000-09-29
ES2235693T3 (es) 2005-07-16
IT1312032B1 (it) 2002-04-04
EP1040895A3 (de) 2002-08-21

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