EP0329089A1 - Dispositif d'alimentation en papier pour une imprimante rapide utilisant des feuilles individuelles - Google Patents

Dispositif d'alimentation en papier pour une imprimante rapide utilisant des feuilles individuelles Download PDF

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Publication number
EP0329089A1
EP0329089A1 EP19890102531 EP89102531A EP0329089A1 EP 0329089 A1 EP0329089 A1 EP 0329089A1 EP 19890102531 EP19890102531 EP 19890102531 EP 89102531 A EP89102531 A EP 89102531A EP 0329089 A1 EP0329089 A1 EP 0329089A1
Authority
EP
European Patent Office
Prior art keywords
paper web
conveying
cutting
smoothing
sheets
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.)
Withdrawn
Application number
EP19890102531
Other languages
German (de)
English (en)
Inventor
Willi Felix
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.)
JOS HUNKELER AG FABRIK fur GRAPHISCHE MASCHINEN
Original Assignee
JOS HUNKELER AG FABRIK fur GRAPHISCHE MASCHINEN
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 JOS HUNKELER AG FABRIK fur GRAPHISCHE MASCHINEN filed Critical JOS HUNKELER AG FABRIK fur GRAPHISCHE MASCHINEN
Publication of EP0329089A1 publication Critical patent/EP0329089A1/fr
Withdrawn legal-status Critical Current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
    • B26D9/00—Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/66—Applications of cutting devices
    • B41J11/70—Applications of cutting devices cutting perpendicular to the direction of paper feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/34—Apparatus for taking-out curl from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/08—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with revolving, e.g. cylinder, cutters or perforators

Definitions

  • the present invention relates to a device for feeding paper to the feed device of a single-sheet high-speed printer according to the preamble of claim 1.
  • Fast printers such as laser printers and other non-impact printers are characterized by a very high processing speed. If the paper supply now consists of a stack of single sheets, which is accommodated in a stacking shaft, this stack will be dismantled after a short time. This leads to frequent filling of the stacking shaft and thus to corresponding interruptions in the printing process. Furthermore, an operator must be ready to fill the stacking shaft as soon as it is empty. The provision of a second stacking shaft also does not make any significant relief.
  • the paper supply is provided in the form of a paper web folded in a zigzag shape to a stack (DE-OS 33 34 825).
  • the paper web is withdrawn from the stack and gradually fed to an intermittent cutting device which cuts the paper web in the area of the folds.
  • the resulting single sheets are then in a scale formation, in which each sheet is like a tile on the preceding sheet rests, fed to the feeder of the fast printer.
  • a paper strip containing the latter is cut away in the area of each fold line and is carried away as waste.
  • This paper strip is cut away in two successive cutting operations, which has a delaying effect on the entire working process, in particular because of the intermittent operation of the cutting device.
  • the format of the single sheets is determined by the width of the paper web on the one hand and the spacing of the folding lines to be cut away.
  • the present invention is based on the object of creating a device of the type mentioned for the reliable provision of single sheets for various types of high-speed printers, which is more efficient than the previously known device and in which practically no paper waste occurs when the single sheets are formed.
  • paper webs can be processed without folding lines, which should be taken into account when cutting the paper web or which have to be cut away. Therefore, a new cut sheet can be cut off with a single cut without the noteworthy paper waste arises.
  • the distance between two cutting lines remains essentially the same, so that the conditions for a continuous cutting process and thus a continuous feed of the paper web are given. This enables a correspondingly high work performance.
  • Unperforated paper webs can also be processed from a roll, in which case the paper web is pushed forward by the feed mechanism by frictional engagement.
  • a smoothing device is preferably provided in which the paper web is smoothed as it passes through. As a result, curvatures in the paper web are reversed, which result from the storage of the paper web on a roll or are formed when the paper web is at a standstill where the paper web is guided over deflection rollers.
  • the individual sheets are inserted from below into a stack in front of the feed device of the high-speed printer, from which the take-off device pulls the sheets from above.
  • the device shown in FIGS. 1 to 5 unwinds a non-perforated, printed or unprinted paper web 12 from a supply roll 10, processes these into single sheets 14, which one with its feeding device 16 (see FIG. 3) indicated, non-mechanically working high-speed printer P, for example a laser printer or another non-impact high-performance printer.
  • the supply roll 10 is rotatably mounted in an unwinding station 18, which is only indicated by a dash-dotted axis cross.
  • the direction of rotation of the supply roll 10 when unwinding the paper web 12 is indicated by the arrow A.
  • the paper web 12 runs over a number of deflection rollers, of which only the deflection roller 20 is shown, through a smoothing device 22 and a perforating device 24 to a feed mechanism 26.
  • the feed mechanism 26 pulls the paper web 12 in the direction of conveyance B from the supply roll 10 and feeds them to a cutting device 28 which cuts the paper web 12 in the transverse direction and feeds the individual sheets 14 thus separated to an accelerating device 30.
  • the acceleration device 30 deposits the cut sheets 14 into a scale formation S on a conveyor device 32, which conveys the scale formation S to the feed device 16 of the high-speed printer P.
  • the smoothing device 22 has two guide roller pairs 34, 36 spaced apart from one another in the conveying direction B of the paper web.
  • the paper web 12 is guided through the conveying gap between the two guide rollers of each pair of guide rollers 34, 36.
  • a crowbar 38 with a square cross section in a direction of arrow C. Slidably mounted perpendicular to the plane of the paper web 12.
  • the crowbar 38 is indicated in the rest position and with dash-dotted lines in its lowest working position 38 '.
  • the crowbar 38 which runs parallel to the paper web 12 and at right angles to the conveying direction B, can be brought into contact with an edge on that upper side of the paper web 12 which was located on the supply roll 10.
  • the pretension or curvature which the paper web 12 has received in the supply roll 10 is canceled with the crowbar 38.
  • the diameter of the supply roll 10 is scanned in a manner not shown and the crowbar 38 is transferred from the rest position 38 into the working position 38 'in accordance with the decrease in this diameter.
  • the upper smoothing rollers 40 are arranged above the paper web 12 stretched between the pair of guide rollers 36 and a further guide roller 44, so that they just touch this stretched paper web 12.
  • These smoothing rollers 40 are arranged parallel to one another at a mutual distance which is greater than the diameter of the smoothing rollers 40.
  • the lower smoothing rollers 42 are mounted on a frame 46 which can be displaced in the direction of arrow D.
  • the lower smoothing rollers 42 are offset with respect to the center of the upper smoothing rollers 40 and, together with the frame 46, are shown in their rest position with solid lines.
  • the perforating device 24 for producing storage holes has a stamping roller 48 arranged above the paper web 12 and a die roller 50 cooperating therewith and arranged below the paper web 12. These two rollers are driven by a drive motor 52 at a peripheral speed which corresponds to the conveying speed v of the paper web 12.
  • stamps 54 are provided, which can be fastened to the stamping roller 48 in the individual sheets 14, depending on the desired perforation. By removing all of the stamps 54 from the stamping roller 48 or by moving the stamping roller 48 and die roller 50 apart, the punching device 24 can be switched off in order to form single sheets 14 without any perforations in the deposit.
  • the feed device is located in front of the cutting device 28 mechanism 26, the feed roller pair 56 of which can be driven by means of a further drive motor 58.
  • the feed roller pair 56 acts on both sides of the paper web 12, the force being transmitted to the paper web 12 without transport perforations by friction.
  • the feed mechanism 26 the paper web 12 is drawn off from the rotatably mounted supply roll 10 and fed to the cutting device 28.
  • the cutting device 28 has a cross cutting device 62 which is driven by means of a further drive motor 60 and a downstream belt conveyor 66 which is operatively connected to it by means of a gear 64.
  • a knife shaft 68 which is rotatably mounted and rotated above the paper web 12 and has two knives 69 and a counter shaft 70 which cooperates therewith and is arranged below the paper web 12 and is also rotatably driven.
  • the belt conveyor 66 has two conveyor belts 72 arranged one above the other, which delimit a common conveying gap and which are driven in the conveying direction B at a speed which is slightly greater than the conveying speed v of the paper web 12.
  • a single sheet separated from the conveying path 12 by means of the cross-cutting device 62 14 is conveyed from the belt conveyor 66 to the downstream acceleration device 30; the leading edge 12 'of the paper web 12 thus formed runs into the conveyor gap formed by the conveyor belts 72 and the section of the paper web 12 between the feed mechanism 26 and the belt conveyor 66 becomes light due to the higher conveyor speed of the conveyor belts 72 stretched so that the separation of the single sheets 14 can be done with a clean cut.
  • the belt conveyor 66 places the single sheets 14 on a further belt conveyor 74 of the acceleration device 30.
  • an acceleration roller 76 is provided above this belt conveyor 74.
  • the belt conveyor 74 and the acceleration roller 76 are driven by a further drive motor 77 in the conveying direction B at a speed v1 which is greater than the conveying speed v of the paper web 12.
  • the individual sheets 14 placed on the belt conveyor 74 reach the conveying gap at the end of the conveying path between the belt conveyor 74 and the accelerating roller 76 and are fed to the conveying device 32 at the conveying speed v1 and conveyed against an angular stop 78.
  • the conveying direction E of the conveying device 32 runs at right angles to the conveying direction B of the paper web 12. This has the consequence that the individual sheets 14 fed in the longitudinal direction of the conveying device 32 have the shorter direction in their transverse direction Side edges running parallel to the conveying direction E, are conveyed further.
  • the conveyor device 32 has a belt conveyor 79, the endless belt 80 of which is guided around a deflection roller 82 at the end of the conveyor-effective route.
  • the deflecting roller 82 is moved in the direction by means of a further drive motor 84 of arrow F driven at speed v2.
  • Another belt conveyor 86 surrounds the deflecting roller 82 and the conveying strand of this belt conveyor 86 forms, together with the deflecting roller 82 or the endless belt 80, a conveying gap 88 for the single sheets 14, which encloses the deflecting roller 82 by approximately 180 °.
  • a stop 90 for forming a buffer stack 94 from the individual sheets 14 is provided in the end region of the conveyor section 86 which is effective for conveying. In the example shown in FIG. 4, this stop 90 is formed by the feed device 16 of the high-speed printer.
  • the feed device 16 advantageously belongs to the original equipment of the fast printer.
  • the single sheets 14 delivered by the acceleration device 30 in the conveying direction B at the speed v1 arrive at the angular stop 78 for precise positioning before they are taken along by the belt conveyor 79 in the direction of the arrow E.
  • the speed v2 of the belt conveyor 78 is matched to the cycle of the individual sheets 14 that are produced such that each individual sheet 14 is placed overlapping on the leading individual sheet 14.
  • the scale formation S thus formed runs into the conveying gap 88 and is guided around the deflection roller 82, which has the consequence that when leaving the conveying gap 88, the initially overlying side of the scale formation S is now underneath and in the conveying direction E 'seen now each individual sheet 14 on the next one.
  • each individual sheet 14 is pushed under the individual sheets 14 which are in contact with their leading edges at the stop 90, which results in the build-up of the buffer stack 94 from below, from which the feed device 16 of the subtracts top sheet 14 in each case.
  • the operating speed of the described device for feeding paper to the single-sheet high-speed printer is adjusted so that the height of the buffer stack 94 remains approximately constant. It is therefore always ensured that enough single sheets 14 are available for the fast printer.
  • a start-stop operation is also conceivable, in which the buffer stack 94 is built up to its maximum height and the device is then shut down until the buffer stack 94 has reached a minimum permissible height.
  • This synchronization control 96 has a control unit 98, the output of which is connected to the drive motor 58 for the feed rollers of the feed mechanism 26.
  • a scanner 100 is connected to one input of the control unit 98 and is used to scan markings which are applied to the paper web 12 at regular intervals.
  • Another input of the control unit 98 is connected to a pulse generator 102 which is coupled to the cutting device 28 and which generates signals characterizing the cutting position of the cutter shaft 68 and the counter shaft 70.
  • control unit 98 On the basis of the signals obtained from the scanner 100 and from the pulse generator 102, the control unit 98 generates control signals for the drive motor 58 of the Feed mechanism 26, so that the paper web 12 is advanced at a speed v such that the paper web 12 is inserted into the cutting device 28 in the correct phase and the printing of the paper web 12 is cut accordingly at the correct location.
  • FIGS. 6 and 7 corresponds to up to and with belt conveyor 66 of the embodiment according to FIGS. 1 to 5. For this reason, the same reference numbers are used in FIGS. 6 and 7 for the same components as in FIGS. 1 and 2.
  • the sheets cut by the cutting device 28 are fed by the belt conveyor 66 to a belt conveyor 104 which belongs to the conveyor device 32.
  • This belt conveyor 104 which is driven in rotation by a drive motor denoted by 106, has a conveying direction E which coincides with the feed direction B of the paper web 12.
  • the single sheets taken over by the belt conveyor 104 are inserted at the bottom into a buffer stack 94, from which the feed device 16 pulls the single sheets from above and feeds them into the printer P.
  • the individual sheets are introduced into the buffer stack 94 by the conveying device 32 without overlapping.
  • the conveying device 32 it is also possible, in a manner similar to that described with reference to the exemplary embodiment according to FIGS. 1 to 5, of the individual sheets in scale formation on the Place conveyor 32 and turn this scale formation as described with reference to the first embodiment.
  • two or more of the drive motors 52, 58, 60, 77, 84, 106 can be replaced by a single drive motor, which then possibly drives several assemblies via gears.
  • the devices described are in principle also able to process paper webs which are not drawn off from a paper supply roll as shown and described, but are instead taken from an endless stack which is formed by a paper web folded in a zigzag shape.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Handling Of Cut Paper (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP19890102531 1988-02-17 1989-02-14 Dispositif d'alimentation en papier pour une imprimante rapide utilisant des feuilles individuelles Withdrawn EP0329089A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883804903 DE3804903A1 (de) 1988-02-17 1988-02-17 Vorrichtung zum zufuehren von papier zu einem einzelblaetter verarbeitenden schnelldrucker
DE3804903 1988-02-17

Publications (1)

Publication Number Publication Date
EP0329089A1 true EP0329089A1 (fr) 1989-08-23

Family

ID=6347574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890102531 Withdrawn EP0329089A1 (fr) 1988-02-17 1989-02-14 Dispositif d'alimentation en papier pour une imprimante rapide utilisant des feuilles individuelles

Country Status (3)

Country Link
EP (1) EP0329089A1 (fr)
JP (1) JPH02147552A (fr)
DE (1) DE3804903A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0622320A1 (fr) * 1993-04-24 1994-11-02 bielomatik Leuze GmbH + Co Dispositif et procédé pour couper un matériel en feuilles
WO1998051599A1 (fr) * 1997-05-09 1998-11-19 Hunkeler Ag Papierverarbeitungsmaschinen Procede et dispositif pour alimenter une imprimante en feuilles individuelles
CH689825A5 (de) * 1998-05-25 1999-12-15 Hunkeler Ag Papierverarbeitung Vorlagevorrichtung und Verfahren fuer Einzelblaetter.
EP1535872A1 (fr) * 2003-11-29 2005-06-01 MAN Roland Druckmaschinen AG Dispositif à coupe transversale pour matériaux imprimés
EP1764329A2 (fr) * 2005-09-15 2007-03-21 MAN Roland Druckmaschinen AG Machine d'impression de feuilles
EP1721849A3 (fr) * 2005-05-12 2007-08-08 TECNAU S.r.l. Dispositif d'alimentation d'une bande continue
CN104477690A (zh) * 2014-12-15 2015-04-01 长沙长泰机械股份有限公司 高速精密切纸机高速输送系统
CN105800370A (zh) * 2016-04-11 2016-07-27 玉田县盛田印刷包装机械有限公司 一种覆膜机伺服差速分切方法及分切机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006002291B4 (de) * 2006-01-18 2023-06-29 Rovema Gmbh Vorrichtung zum Spenden von Abschnitten eines Bandes
CN104550309A (zh) * 2014-12-25 2015-04-29 吴伟琦 一种利用冷轧带钢酸洗线中的切边废料加工线材的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477324A (en) * 1966-07-15 1969-11-11 Mabeg Maschinenbau Gmbh Nachf Device for continually withdrawing single sheets from a stack of sheets
DE2426217A1 (de) * 1973-06-04 1974-12-12 Harris Intertype Corp Anlage zum transport einzelner bogen
US3902648A (en) * 1973-12-28 1975-09-02 Interlake Inc Variable width strip conditioner
DE2643110A1 (de) * 1976-04-19 1977-10-20 Rengo Co Ltd Zuschnittsammelvorrichtung
DE3236884A1 (de) * 1982-10-01 1984-04-05 The Mead Corp., 45463 Dayton, Ohio Anordnung und verfahren zum beidseitigen bedrucken
DE3342756A1 (de) * 1982-11-26 1984-05-30 Pitney Bowes, Inc., Stamford, Conn. Verfahren und vorrichtung zum abtrennen von blaettern von einer absatzweise perforierten fortlaufenden formularbahn

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DE2328510C3 (de) * 1973-06-05 1981-11-26 SIEMENS AG AAAAA, 1000 Berlin und 8000 München Vorrichtung zum Zuführen von blattförmigen Aufzeichnungsträgern zu Schreibmaschinen und ähnlichen Maschinen
DE2439580C3 (de) * 1974-08-17 1982-09-23 Achenbach Buschhütten GmbH, 5910 Kreuztal Meßeinrichtung zur Ermittlung des Abstandes der Stützwalzeneinbaustücke eines Quarto-Walzgerüstes
DE2754180C2 (de) * 1977-12-06 1986-11-27 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Ausgleich unterschiedlicher Bahnspannungen
US4607572A (en) * 1982-06-30 1986-08-26 Monarch Marking Systems, Inc. Printer and method using automatic stacker with paper conduit jam detector
DE3334825A1 (de) * 1983-09-27 1985-06-27 Süka Süddeutsche Spezialdruckerei Hermann Jung GmbH, 7512 Rheinstetten Vorrichtung zum zufuehren von einzelblaettern zu insbesondere einem hochgeschwindigkeits-laser-blatt-drucker
JPH06164655A (ja) * 1992-11-25 1994-06-10 Nec Corp データモデム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477324A (en) * 1966-07-15 1969-11-11 Mabeg Maschinenbau Gmbh Nachf Device for continually withdrawing single sheets from a stack of sheets
DE2426217A1 (de) * 1973-06-04 1974-12-12 Harris Intertype Corp Anlage zum transport einzelner bogen
US3902648A (en) * 1973-12-28 1975-09-02 Interlake Inc Variable width strip conditioner
DE2643110A1 (de) * 1976-04-19 1977-10-20 Rengo Co Ltd Zuschnittsammelvorrichtung
DE3236884A1 (de) * 1982-10-01 1984-04-05 The Mead Corp., 45463 Dayton, Ohio Anordnung und verfahren zum beidseitigen bedrucken
DE3342756A1 (de) * 1982-11-26 1984-05-30 Pitney Bowes, Inc., Stamford, Conn. Verfahren und vorrichtung zum abtrennen von blaettern von einer absatzweise perforierten fortlaufenden formularbahn

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0622320A1 (fr) * 1993-04-24 1994-11-02 bielomatik Leuze GmbH + Co Dispositif et procédé pour couper un matériel en feuilles
WO1998051599A1 (fr) * 1997-05-09 1998-11-19 Hunkeler Ag Papierverarbeitungsmaschinen Procede et dispositif pour alimenter une imprimante en feuilles individuelles
GB2330352A (en) * 1997-05-09 1999-04-21 Hunkeler Ag Method and device for feeding individual sheets to a printer
GB2330352B (en) * 1997-05-09 2001-07-25 Hunkeler Ag Device and method for feeding individual sheets to a printer
US6371475B1 (en) 1997-05-09 2002-04-16 Hunkeler Ag Method and device for feeding individual sheets to a printer
CH689825A5 (de) * 1998-05-25 1999-12-15 Hunkeler Ag Papierverarbeitung Vorlagevorrichtung und Verfahren fuer Einzelblaetter.
EP1535872A1 (fr) * 2003-11-29 2005-06-01 MAN Roland Druckmaschinen AG Dispositif à coupe transversale pour matériaux imprimés
CN100421934C (zh) * 2003-11-29 2008-10-01 曼.罗兰.德鲁克马辛伦公司 用于印刷材料的横切割机
EP1721849A3 (fr) * 2005-05-12 2007-08-08 TECNAU S.r.l. Dispositif d'alimentation d'une bande continue
EP1764329A2 (fr) * 2005-09-15 2007-03-21 MAN Roland Druckmaschinen AG Machine d'impression de feuilles
EP1764329A3 (fr) * 2005-09-15 2007-07-11 Mabeg Maschinenbau GmbH & Co. KG Machine d'impression de feuilles
CN104477690A (zh) * 2014-12-15 2015-04-01 长沙长泰机械股份有限公司 高速精密切纸机高速输送系统
CN105800370A (zh) * 2016-04-11 2016-07-27 玉田县盛田印刷包装机械有限公司 一种覆膜机伺服差速分切方法及分切机构
CN105800370B (zh) * 2016-04-11 2017-05-24 玉田县盛田印刷包装机械有限公司 一种覆膜机伺服差速分切方法

Also Published As

Publication number Publication date
DE3804903A1 (de) 1989-08-31
JPH02147552A (ja) 1990-06-06

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