EP1412144A1 - Procede et dispositif servant a modifier l'etat d'engagement d'un outil dans une bande de matiere qui defile - Google Patents

Procede et dispositif servant a modifier l'etat d'engagement d'un outil dans une bande de matiere qui defile

Info

Publication number
EP1412144A1
EP1412144A1 EP01988649A EP01988649A EP1412144A1 EP 1412144 A1 EP1412144 A1 EP 1412144A1 EP 01988649 A EP01988649 A EP 01988649A EP 01988649 A EP01988649 A EP 01988649A EP 1412144 A1 EP1412144 A1 EP 1412144A1
Authority
EP
European Patent Office
Prior art keywords
tool
engagement
control unit
material web
speed
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
EP01988649A
Other languages
German (de)
English (en)
Other versions
EP1412144B1 (fr
Inventor
Ingo Hahn
Christoph Müller
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.)
Rexroth Indramat GmbH
Original Assignee
Rexroth Indramat GmbH
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 Rexroth Indramat GmbH filed Critical Rexroth Indramat GmbH
Publication of EP1412144A1 publication Critical patent/EP1412144A1/fr
Application granted granted Critical
Publication of EP1412144B1 publication Critical patent/EP1412144B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/141—With means to monitor and control operation [e.g., self-regulating means]

Definitions

  • the invention relates to a method and a device for switching the engagement distance of at least one tool arranged on the outside on an assigned rotating roller in a passing material web according to the preamble of claims 1 and 4.
  • Tool-equipped rollers are used for processing material webs that pass by, for example as paper cutters.
  • Paper sheeter is used to cut a paper web wound on a roll by means of a knife as a tool into individual sections, which usually correspond to the standardized formats.
  • the present invention is applicable to all machines in which there is a periodic movement of a tool, such as cross-sawing machines, tubular bag machines and the like.
  • a paper cross cutter is known from US Pat. No. 5,662,018, which consists of two rollers arranged opposite one another, each of which is equipped with a plurality of knives arranged on the outside in radial direction, around a roller that is guided between the two rollers
  • the engagement distance of the knife-like tool is achieved by assigning different tools to different engagement distances, with those from the stock of available tools coming into engagement that bring about the desired L-engagement distance.
  • the control of the tool engagement takes place mechanically via hydraulic adjustment means.
  • Switching the engagement distance is due to the rather complicated structure of the device, which is complex to assemble due to the large number of mechanical parts and is subject to wear.
  • DE 36 08 1 1 1 C1 discloses switching the engagement distance of a tool electronically.
  • the drive of two rollers arranged opposite each other and each provided with a knife as a tool is carried out in a direct manner by respectively assigned electric motors.
  • the upper roller is driven with the lower roller by a gear drive for synchronizing the rotating rollers.
  • Special DC motors are used as electric motors, which are operated discontinuously by a common electronic control unit depending on various input data, i.e. in the manner of a cam-type control.
  • the input-side data for the control unit include the circumferential speed of the tool, determined via an incremental encoder, and data about the speed of the material web running through the rollers.
  • a desired engagement distance of the tool i.e. a desired format length can be specified.
  • the two special DC motors are controlled in such a way that they can be brought up to their full speed within a short period of time, which corresponds to the respective material web speed. This speed is kept constant during the entire length of the cutting process.
  • the motor can be reduced to a lower speed and then accelerated again to full speed during the cutting process.
  • the motor can be accelerated to higher speeds after passing through the cutting speed in order to rotate the roller at an increased speed and to carry out the cut before the material web has continued to move in the so-called synchronous format, which corresponds to the circumference of the knife.
  • a change in the engagement distance ie a change in shape length
  • a waste of the Zairrenster the changeover of the format length arises
  • this procedure causes a high expenditure of time and waste, which is disadvantageous in mass production, during the run-up or braking process
  • the invention includes the procedural teaching that to switch the
  • the advantage of the method according to the invention lies in particular in that there is no waste of the Matenal orbital as the previous arrival distance can still be assigned to the new intervention distance.
  • the engagement distance can be switched without waste at full web speed without the need to switch off the machine. This is achieved through the immediate provision of control data electronically, with the switching itself in a favorable manner depending on the
  • Intervention situation of the tool in the material web is controlled free of waste. This is achieved by using the time during the engagement of the tool to switch electronically to a new engagement distance. The synchronous operation is still maintained during the engagement of the tool, so that the new peripheral speed of the tool takes effect immediately afterwards.
  • the circumferential speed of the tool to be carried out for this purpose is preferably determined in such a way that a uniform movement component for determining the engagement distance is carried out as the basic movement, which is superimposed by a compensating component which accelerates or brakes in order to bring about an adaptation to the circumferential speed which is synchronous with the material web during the engagement of the tool.
  • a uniform movement component for determining the engagement distance is carried out as the basic movement, which is superimposed by a compensating component which accelerates or brakes in order to bring about an adaptation to the circumferential speed which is synchronous with the material web during the engagement of the tool.
  • the method described above is preferably carried out by means of a device which comprises an electronic control unit which represent the different desired engagement distances
  • control unit After activating a change-over switch, the control unit carries out the change to a different, predefined engagement distance exactly as soon as the tool is in engagement.
  • Sensor determines the corresponding setpoints for controlling the rollers according to the principle of a real master axis.
  • speed data that is obtained according to the principle of the virtual leading axis.
  • assigned drive latch unit is provided, via which the assigned roller can be controlled directly with position control.
  • a separate computer unit directly connected to the control unit - preferably a PC - can be provided, which calculates different cam disk-like circumferential speeds of the tool based on differently desired engagement distances of the tool.
  • the software used for this purpose serves as a cam disc generation tool.
  • the constant rotational movement of the virtual master axis is converted into a desired rotational movement of the roller.
  • the data determined by the computer are stored directly in the drive control unit assigned to each roller, together with the data of a virtual master axis transmission determined via the control unit.
  • the control unit preferably has a binary input which serves as a changeover switch.
  • the changeover switch switches over simultaneously between the several cam-type data stored in the drive control unit with the assigned master axis gearbox data.
  • the simultaneous switchover ensures that in any case the synchronization of the path speed with the peripheral speed of the tool is maintained.
  • Figure 1 is a block diagram representation of an inventive
  • FIG. 2 is a signal flow representation of the control of the rotating rollers.
  • the paper web 1 is wound out from an unwinding device 2 at a constant spinning speed.
  • an anti-friction control unit 3 is used. After processing, the web 1 arrives in the range of two rollers 4 and 5 arranged opposite each other Both rollers
  • Material path speed measured by the sensor 9 is fed to a control unit 10 on the input side.
  • the control unit 10 uses this to determine position setpoints of a virtual master axis and forwards them to drive control units 11 and 12 connected on the output side and assigned to each roller 4 and 5 are loaded by the control unit 10 together with the data of the associated control axis into the drive control units 1 1 and 12 of the two rollers 4 and 5
  • control unit 10 changes from the current entry distance of the two tools 6 and 7 to another entry distance as soon as the tool 6, 7 is in engagement
  • the invention is not restricted to the exemplary embodiment specified above. Modifications thereof are also conceivable, which nevertheless intervene in the scope of protection defined by the claims. It is also conceivable that the invention is used in a known paper cross-cutting device which cuts a material web which is divided several times lengthways and has different engagement distances such that different paper formats are produced in each longitudinal web at the same time, the engagement distances being switchable independently of one another during operation.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Shearing Machines (AREA)
  • Control Of Cutting Processes (AREA)
  • Paper (AREA)
  • Advancing Webs (AREA)
  • Making Paper Articles (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP01988649A 2000-10-26 2001-10-26 Procede et dispositif servant a modifier l'etat d'engagement d'un outil dans une bande de matiere qui defile Expired - Lifetime EP1412144B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10053247 2000-10-26
DE10053247A DE10053247A1 (de) 2000-10-26 2000-10-26 Verfahren und Vorrichtung zum Umschalten des Eingriffsabstandes eines Werkzeuges in eine vorbeilaufende Materialbahn
PCT/DE2001/004026 WO2002034484A1 (fr) 2000-10-26 2001-10-26 Procede et dispositif servant a modifier l'etat d'engagement d'un outil dans une bande de matiere qui defile

Publications (2)

Publication Number Publication Date
EP1412144A1 true EP1412144A1 (fr) 2004-04-28
EP1412144B1 EP1412144B1 (fr) 2006-06-14

Family

ID=7661221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01988649A Expired - Lifetime EP1412144B1 (fr) 2000-10-26 2001-10-26 Procede et dispositif servant a modifier l'etat d'engagement d'un outil dans une bande de matiere qui defile

Country Status (10)

Country Link
US (1) US7089078B2 (fr)
EP (1) EP1412144B1 (fr)
JP (1) JP2004512188A (fr)
AT (1) ATE329735T1 (fr)
AU (1) AU2002220507A1 (fr)
CA (1) CA2426971C (fr)
DE (3) DE10053247A1 (fr)
DK (1) DK1412144T3 (fr)
ES (1) ES2266294T3 (fr)
WO (1) WO2002034484A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10245322A1 (de) * 2002-09-27 2004-04-08 Man Roland Druckmaschinen Ag Verfahren zum Querschneiden einer Bahn
US20060005675A1 (en) * 2004-07-06 2006-01-12 Scheffer, Inc. Process of using a fixed size rotary cutter to cut products of variable repeat lengths
US20080028902A1 (en) * 2006-08-03 2008-02-07 Kimberly-Clark Worldwide, Inc. Dual roll, variable sheet-length, perforation system
DE102007034834A1 (de) * 2007-07-26 2009-01-29 Robert Bosch Gmbh Verfahren und Vorrichtung zum Optimieren von Querbearbeitungsvorgängen
EP3719821A1 (fr) * 2017-02-21 2020-10-07 Manz Italy S.r.l. Appareil et procédé d'usinage

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747022C2 (de) * 1977-10-19 1985-05-15 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung für den elektrischen Direktantrieb einer rotierenden Trennvorrichtung
US4170155A (en) * 1977-11-03 1979-10-09 Nihon Electronic Industry Co., Ltd. Rotary cutter for successively cutting moving material to lengths
DE2749174A1 (de) * 1977-11-03 1979-05-10 Hauni Werke Koerber & Co Kg Anordnung zum steuern der rotierenden schneidwalze einer querschneidvorrichtung
DE2749363A1 (de) * 1977-11-04 1979-05-10 Hauni Werke Koerber & Co Kg Anordnung zum steuern der rotierenden schneidwalze einer querschneidvorrichtung
DE2840377C2 (de) * 1978-09-16 1983-11-10 Jagenberg-Werke AG, 4000 Düsseldorf Einrichtung zum Einstellen der Formatlänge an einem Querschneider für Warenbahnen
FI810219L (fi) * 1980-01-31 1981-08-01 Beloit Corp Cyklisk elektrodrivanordning foer skaermaskin foer fin- och beskiktat papper
US4440051A (en) * 1981-07-30 1984-04-03 E.C.H. Will (Gmbh & Co.) Apparatus for cutting and transporting sheets of paper or the like
JPS60242999A (ja) * 1984-05-02 1985-12-02 三菱重工業株式会社 板状シ−トの不良除去切断制御装置
DE3608111C1 (de) * 1986-03-12 1987-10-01 Bielomatik Leuze & Co Querschneider fuer Bahnmaterialien
JPS63156690A (ja) * 1986-12-19 1988-06-29 レンゴ−株式会社 ロ−タリカツタの制御方法
US5241884A (en) * 1991-10-11 1993-09-07 F. L. Smithe Machine Company, Inc. Apparatus for changing the length of envelope blanks cut from a continuous web
US5713256A (en) * 1994-03-09 1998-02-03 The Langston Corporation Dual speed limits for a cut-off
JP3518029B2 (ja) * 1994-05-09 2004-04-12 三菱電機株式会社 サーボシステムの制御装置
JP3000850B2 (ja) * 1994-05-19 2000-01-17 凸版印刷株式会社 電子カム
DE4417493A1 (de) * 1994-05-19 1995-11-23 Bielomatik Leuze & Co Querschneider für Materialbahnen, insbesondere Papier-Formatquerschneider
US6604444B1 (en) * 1998-10-29 2003-08-12 Heidelberger Druckmaschinen Ag Low maintenance cutting rubber
JP3387842B2 (ja) * 1999-01-11 2003-03-17 株式会社安川電機 電子カム方式ロータリカッタ制御方法および電子カム曲線生成方法
US6173633B1 (en) * 1999-04-09 2001-01-16 Mclaughlin James Variable length rotary cutting system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0234484A1 *

Also Published As

Publication number Publication date
DE10053247A1 (de) 2002-05-29
EP1412144B1 (fr) 2006-06-14
ES2266294T3 (es) 2007-03-01
WO2002034484A1 (fr) 2002-05-02
US20040059457A1 (en) 2004-03-25
DE50110192D1 (de) 2006-07-27
US7089078B2 (en) 2006-08-08
DK1412144T3 (da) 2006-10-16
DE10194647D2 (de) 2003-11-06
CA2426971A1 (fr) 2002-05-02
ATE329735T1 (de) 2006-07-15
CA2426971C (fr) 2006-10-03
JP2004512188A (ja) 2004-04-22
AU2002220507A1 (en) 2002-05-06

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