EP0553947A1 - Dispositif pour presses d'imprimerie pour le nettoyage de rouleaux/cylindres imprimeurs - Google Patents

Dispositif pour presses d'imprimerie pour le nettoyage de rouleaux/cylindres imprimeurs Download PDF

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Publication number
EP0553947A1
EP0553947A1 EP93250032A EP93250032A EP0553947A1 EP 0553947 A1 EP0553947 A1 EP 0553947A1 EP 93250032 A EP93250032 A EP 93250032A EP 93250032 A EP93250032 A EP 93250032A EP 0553947 A1 EP0553947 A1 EP 0553947A1
Authority
EP
European Patent Office
Prior art keywords
take
cleaning cloth
shaft
ratchet wheel
swing
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Withdrawn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
EP93250032A
Other languages
German (de)
English (en)
Inventor
Toshihiko c/o Toride Plant Ebina
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.)
Komori Corp
Original Assignee
Komori Corp
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 Komori Corp filed Critical Komori Corp
Publication of EP0553947A1 publication Critical patent/EP0553947A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices

Definitions

  • the present invention relates to a printing cylinder/roller cleaning apparatus for a printing press, which cleans the circumferential surface of a printing cylinder, e.g., a blanket cylinder, an impression cylinder, or a transfer cylinder, and the circumferential surface of a roller, e.g., a form roller or a vibrating roller.
  • a printing cylinder e.g., a blanket cylinder, an impression cylinder, or a transfer cylinder
  • a roller e.g., a form roller or a vibrating roller.
  • a printing cylinder/roller cleaning apparatus of this type has a cleaning cloth take-up mechanism comprising a pair of rotatably supported roller-shaped cloth guides pressed against the circumferential surface of a printing cylinder/roller through a cleaning cloth, a supply shaft for supplying the cleaning cloth to the cloth guides, and a take-up shaft for taking up the cleaning cloth supplied from the supply shaft.
  • the cleaning cloth is pressed against the circumferential surface of the printing cylinder/roller by intermittently taking up the cleaning cloth on the take-up shaft from the supply shaft, and the residue, e.g., ink dust or paper dust on the circumferential surface of the printing cylinder/roller is wiped with the cleaning cloth, thereby cleaning the circumferential surface of the printing cylinder/roller.
  • a rotation stop mechanism comprising a ratchet wheel mounted on the shaft end of a supply shaft, a ratchet to be engaged with this ratchet wheel, an air cylinder for engaging and disengaging the ratchet with and from the ratchet wheel, and a spring for biasing the ratchet away from the ratchet wheel are provided to the supply shaft.
  • the take-up shaft is driven by a take-up driving unit to take up the cleaning cloth.
  • the ratchet is engaged with the ratchet wheel against the biasing force of the spring by the operation of the air cylinder as the driving unit of the rotation stop mechanism, so that rotation of the supply shaft in the supply direction is prohibited, thereby preventing the cleaning cloth to be pulled out.
  • the driving unit for driving the rotation stop mechanism comprising the air cylinder is required in addition to the take-up driving unit for the take-up shaft.
  • take-up driving of the take-up shaft and rotation regulation release of the supply shaft must be performed almost simultaneously, when the take-up driving mechanism and the rotation stop mechanism respectively having a separate driving means are to be interlocked, the entire apparatus is increased in size, and the operation becomes complicated, so that a smooth operation cannot be obtained.
  • a printing cylinder/roller cleaning apparatus for a printing press, comprising a cleaning cloth pressed against a circumferential surface of a rotating printing cylinder/roller, a take-up shaft for taking up the cleaning cloth, a supply shaft for supplying the cleaning cloth, a ratchet wheel coaxially mounted on the supply shaft, a lock member engaged with the ratchet wheel when the cleaning cloth is not taken up, an actuating member, coaxially mounted on the take-up shaft and rotated, for actuating the lock member, thereby releasing engagement between the ratchet wheel and the lock member, a first one-way clutch for connecting the take-up shaft with the actuating member only in a direction to take up the cleaning cloth, and driving means for pivoting the actuating member in response to the cleaning operation of the printing cylinder/roller.
  • FIG. 1A shows a printing cylinder/roller cleaning apparatus for a printing press according to an embodiment of the present invention
  • Fig. 1B shows a state wherein a cleaning cloth is being taken up
  • Fig. 2A shows a state wherein an operation of taking up the cleaning cloth is started
  • Fig. 2B shows a state wherein the operation of taking up the cleaning cloth is completed.
  • reference numeral 2 denotes a blanket cylinder pressed against an impression cylinder (not shown).
  • Roller-shaped cloth guides 3 and 4 rotatably supported between frames (not shown) are pressed against the circumferential surface of the blanket cylinder 2.
  • a belt-like cleaning cloth 6 extends between the cloth guides 3 and 4 to be pressed against the circumferential surface of the blanket cylinder 2.
  • the cleaning cloth 6 is supplied from a cloth supply shaft 8 and taken up by a take-up shaft 14 driven by a take-up mechanism (not shown).
  • Reference numeral 10 denotes a ratchet wheel having a circumferential surface formed with teeth 10a and coaxially mounted on a shaft 8a of the supply shaft 8.
  • the ratchet wheel 10 is connected to the supply shaft 8 through a one-way clutch 11 so that when the ratchet wheel 10 is fixed, rotation of the supply shaft 8 in a direction to supply the cleaning cloth 6 is prohibited.
  • An L-shaped swing lever 18 is swingably supported by a shaft 14a of the take-up shaft 14 as the swing shaft.
  • the take-up shaft 14 is connected to the swing lever 18 through a one-way clutch 15 so that the take-up shaft 14 is rotatable only in a direction to take up the cleaning cloth 6.
  • An abutting block 19 is mounted on one end of the swing lever 18, and a roller 20 is provided on a rear surface of the other end of the swing lever 18.
  • the abutting block 19 is coupled to the distal end of a rod 26 of an air cylinder 25 serving as an actuator.
  • the swing lever 18 is swung about the shaft 14a by the rod 26 moving forward/backward from/into the air cylinder 25.
  • Reference numeral 30 denotes a substantially T-shaped lock lever supported to be swingable about a shaft 31.
  • the lock lever 30 has one end provided with a ratchet 30a.
  • the ratchet 30a is engaged with the teeth 10a of the ratchet wheel 10 to prohibit rotation of the ratchet wheel 10 in a direction to supply the cleaning cloth 6, i.e., counterclockwise in Fig. 1A.
  • a cam surface 30b on which the roller 20 of the swing lever 18 slides is formed on the upper end face of the lock lever 30.
  • the lock lever 30 is imparted with a swing habit by a compression spring 33 clockwise in Fig. 1A, i.e., in a direction such that its ratchet 30a engages with one of the teeth 10a of the ratchet wheel 10.
  • Reference numeral 34 denotes a V-shaped swing lever 34 swingable about its shaft 34a.
  • a stopper pin 35 and a roller 36 for regulating the swing amount of the swing lever 18 are axially mounted on the swing end of the swing lever 34.
  • the swing lever 34 is always imparted with a swing habit counterclockwise so that the roller 36 abuts against the circumferential surface of the take-up shaft 14.
  • the stopper pin 35 is also moved clockwise.
  • the counterclockwise swing amount of the swing lever 18 abutting against the stopper pin 35 is regulated to be small, so that the take-up amount of the cleaning cloth 6 defined by the swing amount is adjusted almost at a constant value. That is, a predetermined length of the cleaning cloth 6 can be constantly taken up by one take-up operation regardless of the take-up diameter of the take-up shaft 14.
  • this printing cylinder/roller will be described.
  • the air cylinder 25 is actuated to move the rod 26 forward, so that a soiled portion of the cleaning cloth 6 is taken up and a clean portion of the cleaning cloth 6 is supplied through the cloth guides 3 and 4.
  • the swing lever 18 swings counterclockwise about the shaft 14a.
  • the swing lever 18 since the swing lever 18 is coupled to the take-up shaft 14 through the one-way clutch 15 so that the take-up shaft 14 is rotatable only counterclockwise, the cleaning cloth 6 will not adhesively attach to an ink tack or the like and be pulled out from the take-up shaft 14 to the blanket cylinder 2.
  • the roller 20 slides on the cam surface 30b of the lock lever 30 from the state shown in Fig. 1A, and swings the lock lever 30 counterclockwise against the biasing force of the compression spring 33.
  • the ratchet 30a is separated from the corresponding one of the teeth 10a of the ratchet wheel 10 to release engagement between the ratchet 30a and the corresponding one of the teeth 10a, and the ratchet wheel 10 is released and may rotate .
  • the supply shaft 8 is connected to the ratchet wheel 10 through the one-way clutch 11 so that the supply shaft 8 will not rotate counterclockwise.
  • the ratchet 30a and the corresponding one of the teeth 10a are engaged with each other, the cleaning cloth 6 will not be pulled out.
  • the supply shaft 8 is rotated counterclockwise, together with the ratchet wheel 10, about the shaft 8a.
  • a clean portion of the cleaning cloth 6 is pulled out, supplied, and taken up by the take-up shaft 14.
  • the printing cylinder/roller to be cleaned with the cleaning cloth 6 is the blanket cylinder 2.
  • the present invention is not limited to this, and can naturally be applied to any other printing cylinder or a rotating roller.
  • the cleaning cloth 6 is pressed against the circumferential surface of the blanket cylinder 2 by the pair of roll-shaped cloth guides 3 and 4.
  • the present invention is not limited to this, and various design modifications can be made.
  • the swing lever 18 and the lock lever 30 are interlocked with each other through the roller 20 and the cam surface 30b.
  • the present invention is not limited to this, and the swing lever 18 and the lock lever 30 may be coupled through a link mechanism.
  • a pinion may be axially mounted on the take-up shaft 14, the rod 26 may be provided with a rack to be meshed with the pinion, and the lock lever 30 may be directly coupled to the rod 26.
  • the pinion and the lock lever 30 need not be swingable, and the compression spring 33 for biasing the lock lever 30 can be eliminated.
  • an actuator may be adopted as the actuator, as a matter of course.
  • the ratchet wheel 10 is coupled to the supply shaft 8 through the one-way clutch 11. However, it is apparent that a similar effect to this can be obtained even by integrally coupling the ratchet wheel 10 with the supply shaft 8.
  • the apparatus can be reduced in size. Furthermore, since the supply and take-up operations of the cleaning cloth can be performed in an interlocked manner by the operation of a single driving means, a smooth take-up operation and pull-out prevention of the cleaning cloth can be obtained.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP93250032A 1992-01-27 1993-01-26 Dispositif pour presses d'imprimerie pour le nettoyage de rouleaux/cylindres imprimeurs Withdrawn EP0553947A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4034052A JP3000535B2 (ja) 1992-01-27 1992-01-27 印刷機械のシリンダ洗浄装置
JP34052/92 1992-01-27

Publications (1)

Publication Number Publication Date
EP0553947A1 true EP0553947A1 (fr) 1993-08-04

Family

ID=12403522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93250032A Withdrawn EP0553947A1 (fr) 1992-01-27 1993-01-26 Dispositif pour presses d'imprimerie pour le nettoyage de rouleaux/cylindres imprimeurs

Country Status (2)

Country Link
EP (1) EP0553947A1 (fr)
JP (1) JP3000535B2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0755788A1 (fr) * 1995-07-24 1997-01-29 Komori Corporation Dispositif de nettoyage d'un cylindre pour une machine d'impression
EP1619027A1 (fr) * 2004-07-21 2006-01-25 Technotrans AG Appareil de nettoyge de surface, en particulier de cylindres de machines d'imprimerie
DE102006050490B3 (de) * 2006-10-26 2007-11-08 Technotrans Ag Reinigungsvorrichtung für Druckwalzen
CN106609847A (zh) * 2015-10-23 2017-05-03 常州市汇丰船舶附件制造有限公司 脉冲集中进气闭合装置
CN110846831A (zh) * 2019-12-11 2020-02-28 苏州佳人良无纺布制品有限公司 一种无纺布清洗器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113293599B (zh) * 2021-05-15 2022-04-15 江门晨安科技有限公司 一种服饰面料加工用分切装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB169826A (en) * 1920-07-07 1921-10-07 Randolph Solomon Improvements in inking and wiping mechanism for plate printing presses
DE2538105A1 (de) * 1974-09-11 1976-04-01 Hans Jacob Dipl Ing Moestue Vorrichtung zum reinigen eines zylinders einer druckmaschine
DE8307296U1 (fr) * 1983-03-14 1987-04-09 Georg Spiess Gmbh, 8906 Gersthofen, De
EP0334173A1 (fr) * 1988-03-23 1989-09-27 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer les surfaces de travail d'une machine, en particulier d'une machine d'imprimerie
EP0372253A2 (fr) * 1988-11-15 1990-06-13 Baldwin-Gegenheimer GmbH Dispositif de nettoyage pour le cylindre d'impression d'une machine à imprimer
DE4027505A1 (de) * 1989-09-01 1991-03-07 Yoshichika Murakami Reinigungsvorrichtung fuer einen drehkoerper
EP0445600A2 (fr) * 1990-03-05 1991-09-11 Komori Corporation Mécanisme de nettoyage de cylindre pour presse à imprimer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB169826A (en) * 1920-07-07 1921-10-07 Randolph Solomon Improvements in inking and wiping mechanism for plate printing presses
DE2538105A1 (de) * 1974-09-11 1976-04-01 Hans Jacob Dipl Ing Moestue Vorrichtung zum reinigen eines zylinders einer druckmaschine
DE8307296U1 (fr) * 1983-03-14 1987-04-09 Georg Spiess Gmbh, 8906 Gersthofen, De
EP0334173A1 (fr) * 1988-03-23 1989-09-27 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer les surfaces de travail d'une machine, en particulier d'une machine d'imprimerie
EP0372253A2 (fr) * 1988-11-15 1990-06-13 Baldwin-Gegenheimer GmbH Dispositif de nettoyage pour le cylindre d'impression d'une machine à imprimer
DE4027505A1 (de) * 1989-09-01 1991-03-07 Yoshichika Murakami Reinigungsvorrichtung fuer einen drehkoerper
EP0445600A2 (fr) * 1990-03-05 1991-09-11 Komori Corporation Mécanisme de nettoyage de cylindre pour presse à imprimer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 157 (M-955)27 March 1990 & JP-A-02 020 349 ( NIPPON BALDWIN KK ) 23 January 1990 *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 443 (M-1178)12 November 1991 & JP-A-03 189 156 ( NIPPON BALDWIN KK ) 19 August 1991 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0755788A1 (fr) * 1995-07-24 1997-01-29 Komori Corporation Dispositif de nettoyage d'un cylindre pour une machine d'impression
EP1619027A1 (fr) * 2004-07-21 2006-01-25 Technotrans AG Appareil de nettoyge de surface, en particulier de cylindres de machines d'imprimerie
DE102006050490B3 (de) * 2006-10-26 2007-11-08 Technotrans Ag Reinigungsvorrichtung für Druckwalzen
CN106609847A (zh) * 2015-10-23 2017-05-03 常州市汇丰船舶附件制造有限公司 脉冲集中进气闭合装置
CN110846831A (zh) * 2019-12-11 2020-02-28 苏州佳人良无纺布制品有限公司 一种无纺布清洗器

Also Published As

Publication number Publication date
JPH05200994A (ja) 1993-08-10
JP3000535B2 (ja) 2000-01-17

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