EP0280036A2 - Dispositif d'alimentation de bandes en continu - Google Patents

Dispositif d'alimentation de bandes en continu Download PDF

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Publication number
EP0280036A2
EP0280036A2 EP88100811A EP88100811A EP0280036A2 EP 0280036 A2 EP0280036 A2 EP 0280036A2 EP 88100811 A EP88100811 A EP 88100811A EP 88100811 A EP88100811 A EP 88100811A EP 0280036 A2 EP0280036 A2 EP 0280036A2
Authority
EP
European Patent Office
Prior art keywords
take
reel
transport device
roll
axis
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Withdrawn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
EP88100811A
Other languages
German (de)
English (en)
Other versions
EP0280036A3 (fr
Inventor
Hermann Kolhage
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.)
Wincor Nixdorf International GmbH
Nixdorf Computer AG
Original Assignee
Wincor Nixdorf International GmbH
Nixdorf Computer AG
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 Wincor Nixdorf International GmbH, Nixdorf Computer AG filed Critical Wincor Nixdorf International GmbH
Publication of EP0280036A2 publication Critical patent/EP0280036A2/fr
Publication of EP0280036A3 publication Critical patent/EP0280036A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles

Definitions

  • the innovation relates to a transport device for a web-shaped recording medium from a supply roll through a printing station to a drivable take-up roll, the supply roll and take-up roll being interchangeably mounted.
  • Such a transport device is used, for example, in so-called journal printers.
  • the winding roller is coupled to the drive of the transport device via a gear or belt drive which is arranged on a holder which also has the bearings for the rolls.
  • Bracket can be moved laterally using a special mechanism, i.e. in the axial direction of the rollers, so that the rollers can be removed and replaced by new ones.
  • This arrangement has the disadvantage that it is relatively complicated in construction and requires a relatively large space on the side in order to be able to replace the rollers.
  • the innovation is based on the object of specifying a transport device of the type mentioned, which is simple and compact in its construction and also takes up little space when the rollers are replaced.
  • this object is achieved in that the shaft of the take-up reel is detachably mounted in a swivel part which is pivotably mounted on a bearing frame receiving the supply reel and the drive for the take-up reel about an axis parallel to the take-up reel axis between an operating position and an exchange position, and that the drive comprises a drive wheel which is intended with its peripheral surface to bear against a peripheral surface of the take-up reel.
  • the swivel path essentially only needs to be somewhat larger than the diameter of the full take-up roll in order to be able to replace it.
  • the fact that the drive wheel and the take-up reel are in drive connection in the area of their abutting circumferential surfaces means that no complicated mechanics are required in order to release and re-establish the drive connection.
  • the shaft of the winding roll expediently has two circular disks which receive the winding body between them shaped flanges, of which at least one is in drive connection with the drive wheel, the drive being able to take place both by frictional engagement and in a form-fit manner in that the drive wheel and the relevant flange of the winding roller each carry a ring gear.
  • the bearings for the shaft of the take-up reel are formed by slot-shaped recesses open at one end of the slot in two side walls of the swivel part which enclose the take-up reel, the semi-circular end faces of the swivel part being considered in the operating position of the swivel part Indicate cutouts at least approximately to the axis of the drive wheel.
  • the winding roll can thus be easily removed from its bearings after the pivoting of the pivoting part and reinserted in these. In the operating position of the swivel part, the winding roller is pressed against the semicircular end faces of the cutouts by the abutment on the drive wheel and is thus held in a defined storage position.
  • a locking lever is pivotally mounted about an axis parallel to the swivel axis of the swivel part, which is one for contact with a peripheral surface of the take-up reel carries certain braking surface and is biased towards this circumferential surface such that it presses the take-up reel in the exchange position of the pivoting part in the direction of the end surfaces of the slot-shaped recesses, with a on the bearing frame Stop is arranged such that it moves into the operating position in the path of the locking lever when pivoting the pivoting part and lifts it against its bias from the take-up reel.
  • the previously known transport devices of the type mentioned have the further disadvantage that the record carrier cannot be pulled tight when it is inserted. If the drive starts up suddenly, this can lead to tearing of the recording medium or to a non-uniform print image.
  • This disadvantage can be eliminated in a simple manner in the transport device according to the invention in that the stop which lifts the locking lever in the operating position of the pivoting part from the winding roller is formed by a guide surface for the recording medium arranged parallel to the axis of the winding roller in front of the printing station and in that the locking lever is designed as a two-armed lever, the lever arm of the braking surface also carries a roller intended to rest on the guide surface.
  • the roller mounted on the locking lever presses the recording medium against the guide surface and ensures that the recording medium has to be pulled onto the winding roller against the slight resistance of the roller mounted on the locking lever and is thereby tensioned in the printing station.
  • the locking lever thus fulfills a dual function in the transport device according to the innovation as a tensioning element for the recording medium and as a locking device for the winding roller when the pivoting part is pivoted into the replacement position.
  • a locking lever is mounted on both side cheeks of the swivel part in such a way that it comes to rest against the circumferential surface of a side flange of the take-up roll, the locking levers on their lever arms remote from the respective braking surface being connected to one another by a shaft can be connected, on which the roller intended for bearing against the guide surface is freely rotatably mounted.
  • a roll extending over the entire width of the recording medium can be provided.
  • Fig. 1 generally designates the housing of a transport device for a paper web 12, which is fed from a supply roll 14 via a platen roller 16 to a winding roller 18.
  • the transport device belongs to a so-called journal printer, which is shown in FIG. 1 only by one opposite the platen roller 16 arranged print head 20 is indicated.
  • the transport device can be used for different printing devices.
  • FIG. 1 Of the housing 10, only one side wall 22 and a bottom part 24 are shown in FIG. 1, which connects the side wall 22 with a second side wall lying parallel to this above the drawing plane of FIG. 1.
  • the bottom part 24 has a trough-shaped recess in which the supply roll 14 is freely floating. Between the supply roll 14 and the platen roller 16, the paper web 12 runs over a guide surface 26 which is firmly connected to the housing 10 in a manner not shown and whose function will be explained in more detail below.
  • the take-up roll 18 comprises two circular disk-shaped flanges 28 which are arranged at a distance from one another and which enclose a winding core between them and each have a shaft journal 30 on their outer sides.
  • the flanges 28 can also be arranged directly on a continuous shaft.
  • the take-up reel 18 is mounted in a pivot part, generally designated 32.
  • This swivel part 32 consists of two side parts 34 directed parallel to the side walls 22 of the housing 10, which are connected to one another by a surface 36, which in the present exemplary embodiment is interrupted by a recess 38.
  • surface 36 could also be continuous.
  • the pivot part 32 is pivotable about a pivot axis 42 parallel to the platen roller axis 40 on the side walls 22 of the housing 10 is mounted so that it can be pivoted between an operating position shown by solid lines in FIG. 1 and a replacement or maintenance position shown by dash-dotted lines. In the latter position, the supply roll 14 and the take-up roll 18 can be replaced. If there is enough space upwards, the swivel part can of course also be opened further, since it is not prevented from swiveling by drive belts or the like.
  • slot-shaped recesses 44 are formed in its side parts 34, the width of which essentially corresponds to the diameter of the shaft journal 30.
  • These slit-shaped recesses have a semicircularly curved end face 46 at their closed end and, at least in the section 48 adjoining this end face, are directed approximately radially to the axis 50 of a friction wheel 52, which is connected to a drive motor, not shown, and for contacting the Circumferential surface 54 of one of the flanges 28 of the winding roll 18 is determined.
  • angled two-armed locking levers 56 are arranged between the side parts 34 of the pivoting part 32 in opposition to the flanges 28 of the winding roller 18 about an axis 40 of the platen roller 16 parallel axis 58 pivotally mounted.
  • the locking levers 56 each have a first lever arm 60, which extends in the direction of the guide surface 26. At their free ends, the lever arms 60 are connected to one another by a rod 62 on which rollers 64 are freely rotatable.
  • the locking levers 56 are tensioned by at least one spring 66 schematically indicated in FIG.
  • the second lever arm 68 which is angled with respect to the first lever arm 60 of the locking lever 56 in the direction of the winding roller 18, carries a braking surface 70 with which the locking lever 56 is tensioned under the action of the spring 66 against the peripheral surface of the respective flange 28 of the winding reel 18 as soon as the pivot part 32 is pivoted into the exchange position.
  • the locking lever 56 press the take-up reel with its bearing pin 30 into the bearing slots 44 and prevent the Winding roll 18 can fall out of the bearing slots 44 when the pivoting part 32 is pivoted. To replace the take-up reel 18, it is sufficient to push it out of the bearing slots or to roll it out, the locking levers 56 being pivoted against the force of the spring 66.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
EP88100811A 1987-02-18 1988-01-20 Dispositif d'alimentation de bandes en continu Withdrawn EP0280036A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8702509U DE8702509U1 (de) 1987-02-18 1987-02-18 Transportvorrichtung für einen bahnförmigen Aufzeichnungsträger
DE8702509U 1987-02-18

Publications (2)

Publication Number Publication Date
EP0280036A2 true EP0280036A2 (fr) 1988-08-31
EP0280036A3 EP0280036A3 (fr) 1989-06-14

Family

ID=6804900

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100811A Withdrawn EP0280036A3 (fr) 1987-02-18 1988-01-20 Dispositif d'alimentation de bandes en continu

Country Status (2)

Country Link
EP (1) EP0280036A3 (fr)
DE (1) DE8702509U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367567A2 (fr) * 1988-11-04 1990-05-09 Tokyo Electric Co., Ltd. Dispositif support pour papier dans une imprimante
WO1990012374A1 (fr) * 1989-04-05 1990-10-18 Siemens Nixdorf Informationssysteme Aktiengesellschaft Dispositif divisible de division de papier pour papier sans fin pre-plie dans une imprimante non mecanique
US5302037A (en) * 1992-04-10 1994-04-12 Hecon Corporation Web handling and feeding system for printers
WO2002026505A1 (fr) * 2000-09-29 2002-04-04 Wincor Nixdorf Gmbh & Co. Kg Imprimante pour livre-journal a systeme d"enroulement pivotant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821108A1 (de) * 1988-06-20 1989-12-21 Siemens Ag Bildaufzeichnungsvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046735A (en) * 1963-05-29 1966-10-26 Cons Electrodynamics Corp Improvements in chart recorders
US3834638A (en) * 1973-01-05 1974-09-10 Singer Co Assembly for spooling an audit trail in a data terminal
DE2525747A1 (de) * 1975-06-10 1976-12-23 Agfa Gevaert Ag Anordnung zum auf- oder abwickeln von bandmaterial
US4079826A (en) * 1974-06-11 1978-03-21 Digital Computer Controls, Inc. Paper tape housing for a business machine
US4394990A (en) * 1980-12-19 1983-07-26 Eastman Kodak Company Web cinching and winding apparatus and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429523A (en) * 1966-10-17 1969-02-25 Admaster Corp Paper feed mechanism for listing-calculating machines
DE2158090C3 (de) * 1971-11-24 1975-06-05 Anker-Werke Ag, 4800 Bielefeld Verfahren und Einrichtung zum kernlosen Aufwickeln eines bandförmigen Aufzeichnungsträgers
US4463911A (en) * 1982-06-02 1984-08-07 Signode Corporation Strap dispenser
JPS60192668A (ja) * 1984-03-14 1985-10-01 Toshiba Corp 画像形成装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046735A (en) * 1963-05-29 1966-10-26 Cons Electrodynamics Corp Improvements in chart recorders
US3834638A (en) * 1973-01-05 1974-09-10 Singer Co Assembly for spooling an audit trail in a data terminal
US4079826A (en) * 1974-06-11 1978-03-21 Digital Computer Controls, Inc. Paper tape housing for a business machine
DE2525747A1 (de) * 1975-06-10 1976-12-23 Agfa Gevaert Ag Anordnung zum auf- oder abwickeln von bandmaterial
US4394990A (en) * 1980-12-19 1983-07-26 Eastman Kodak Company Web cinching and winding apparatus and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367567A2 (fr) * 1988-11-04 1990-05-09 Tokyo Electric Co., Ltd. Dispositif support pour papier dans une imprimante
EP0367567A3 (fr) * 1988-11-04 1990-10-31 Tokyo Electric Co., Ltd. Dispositif support pour papier dans une imprimante
US5033881A (en) * 1988-11-04 1991-07-23 Tokyo Electric Co., Ltd. Paper holding device for printer
AU622234B2 (en) * 1988-11-04 1992-04-02 Tokyo Electric Co. Ltd. Paper holding device for printer
WO1990012374A1 (fr) * 1989-04-05 1990-10-18 Siemens Nixdorf Informationssysteme Aktiengesellschaft Dispositif divisible de division de papier pour papier sans fin pre-plie dans une imprimante non mecanique
US5358346A (en) * 1989-04-05 1994-10-25 Siemens Nixdorf Informationssysteme Ag Paper-separating device for prefolded continuous paper in a printing device
US5302037A (en) * 1992-04-10 1994-04-12 Hecon Corporation Web handling and feeding system for printers
WO2002026505A1 (fr) * 2000-09-29 2002-04-04 Wincor Nixdorf Gmbh & Co. Kg Imprimante pour livre-journal a systeme d"enroulement pivotant

Also Published As

Publication number Publication date
DE8702509U1 (de) 1987-04-09
EP0280036A3 (fr) 1989-06-14

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