EP3789199A1 - Dispositif, essuie-glace, revêtement d'essuie-glace et procédé d'entretien d'une bague de cylindre - Google Patents

Dispositif, essuie-glace, revêtement d'essuie-glace et procédé d'entretien d'une bague de cylindre Download PDF

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Publication number
EP3789199A1
EP3789199A1 EP19195549.1A EP19195549A EP3789199A1 EP 3789199 A1 EP3789199 A1 EP 3789199A1 EP 19195549 A EP19195549 A EP 19195549A EP 3789199 A1 EP3789199 A1 EP 3789199A1
Authority
EP
European Patent Office
Prior art keywords
wiper
profile
plug
bearer ring
circumferential section
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.)
Pending
Application number
EP19195549.1A
Other languages
German (de)
English (en)
Inventor
Carsten Kelm
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to EP19195549.1A priority Critical patent/EP3789199A1/fr
Priority to CN202010920629.3A priority patent/CN112440557B/zh
Publication of EP3789199A1 publication Critical patent/EP3789199A1/fr
Pending 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
    • B08B1/143—Wipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • B41F13/21—Bearer rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/50—Selection of materials or products for cleaning

Definitions

  • the present invention relates to a device for maintaining a bearer ring, comprising a wiper which has a central axis, a first circumferential section, a second circumferential section and a first plug-in profile, further comprising a holder with a second plug-in profile with which the first plug-in profile is designed to be compatible, so that the wiper and the holder can be plugged together, the wiper being rotatable from a first position to a second position, in the first position the first circumferential section rests against the bearer ring and in the second position the second circumferential section rests against the bearer ring.
  • the present invention also relates to a wiper for maintaining a bearer ring in a printing press, comprising a first plug-in profile which is designed to be compatible with a second plug-in profile which has a holder for the wiper arranged in the printing press.
  • the present invention further relates to a wiper covering for a wiper for maintaining a bearer ring.
  • the present invention also relates to methods for maintaining a bearer ring, in which the device and / or the wiper are used.
  • DE 77 10 395 U describes a device for cleaning bearer rings on cylinders of printing machines, in which a holder is pivotably mounted on a stud bolt attached to the machine frame and is provided at its free end with a scraper which is pressed onto the bearer ring of the cylinder by the force of a spring .
  • the scraper is made of a soft and absorbent material such as felt.
  • the wiper has such a geometric shape that it can be used several times by repositioning or rotating in the holder.
  • the object of the present invention is to create a more user-friendly device, to create a wiper suitable for use in the device according to the invention, to create a wiper covering suitable for forming the wiper according to the invention, and to specify a method suitable for operating the device according to the invention.
  • a device for maintaining a bearer ring comprising a wiper that has a central axis, a first circumferential section, a second circumferential section and a first plug-in profile, further comprising a holder with a second plug-in profile with which the first plug-in profile is designed to be compatible , so that the wiper and the holder can be plugged together, the wiper being rotatable from a first position to a second position, in the first position the first circumferential section rests on the bearer ring and in the second position the second circumferential section rests on the bearer ring, thereby characterized in that the holder is rotatable together with the wiper from the first position into the second position about the central axis of the wiper by a device.
  • the advantage of the device according to the invention is that it has favorable prerequisites for automation.
  • the device can have an actuator for rotating the holder.
  • the device can have a step gear for rotating the holder step by step.
  • the indexing gear can have a ratchet wheel.
  • the holder can have a shaft and the first plug-in profile and the second plug-in profile can together form a shaft-hub connection.
  • a wiper for maintaining a bearer ring in a printing press comprising a first plug-in profile which is connected to a second Plug-in profile is designed to be compatible, which has a holder for the wiper arranged in the printing machine, characterized in that the first plug-in profile is part of a shaft-hub connection which can be formed by plugging the first plug-in profile together with the second plug-in profile.
  • the advantage of the wiper according to the invention is that it has favorable prerequisites for actuating or motorized turning.
  • the first plug profile can be an inner profile.
  • the first plug profile can be a keyway.
  • the wiper can have a first circumferential section and a second circumferential section, wherein the first circumferential section can have a different surface quality and / or material quality than the second circumferential section.
  • a wiper lining for maintaining a bearer ring in a printing machine, the wiper lining being designed as a lining ring which has an axial bore that is dimensioned to fit a hub ring with which the lining ring can be plugged together, to form a wiper according to the invention or one of its developments.
  • the advantage of the wiper pad according to the invention is that it can be mass-produced inexpensively, e.g. B. by punching out covering rings from felt mats.
  • the lining ring enables the wiper to be made up of several parts, with the lining ring, which is less complex to manufacture, a disposable part and the hub ring, which is more complex to manufacture, can be a reusable part.
  • An additional advantage is that the printing press operator can assemble the wiper himself by putting the lining ring and the hub ring together, and can also take them apart again.
  • the object is also achieved by a method for maintaining a bearer ring, with an electronic control system when a permissible maximum number is reached of rotations of the bearer ring carried out under operating load for this a maintenance process is automatically triggered or signaled for manual triggering, the device designed according to the invention or one of its developments being used to carry out the maintenance process and / or the wiper according to the invention or one of its developments being used, whereby During the maintenance process, in a first step the wiper is placed against the bearer ring, in a second step oil or another substance is wiped onto the bearer ring with the wiper and / or is wiped off the bearer ring and in a third step the wiper is removed from the bearer ring again is turned off.
  • the advantage of the method according to the invention is that the operator is relieved of control activities.
  • Figure 1a shows a plate cylinder 17 with a bearer ring 3 in a printing press 15.
  • a device for maintaining bearer ring 3 is arranged next to it.
  • a wiper 4 wipes a substance in the form of dirt from the bearer ring 3 rotating in the process and a lubricant - referred to below as oil - on it.
  • the Figures 2a and 2b show that the device has a bearing lever 18 which is pivoted about a joint 41 by a pneumatic working cylinder 40 in order to place the wiper 4 on the bearer ring 3 and to set it off again therefrom.
  • the engaged state is determined by an infeed stop 19 which is adjustable in order to set the pressure between the wiper 4 and bearer ring 3.
  • the bearing lever 18 rests against a parking stop 20.
  • a device 7 with an actuator 8 and a step gear 9 is provided for rotating the wiper 4 about its central axis 5.
  • the wiper 4 comprises a first circumferential section 1, a second circumferential section 2 and still further raised circumferential sections, between which recessed circumferential sections lie.
  • FIG 3a shows that a holder 6 for the wiper 4 is arranged on the bearing lever 18.
  • the holder 6 comprises a shaft 13 which, when switching over from the first circumferential section 1 to the second circumferential section 2, transmits the torque from the indexing gear 9 to the wiper 4 when the latter is placed on the shaft 13.
  • the first plug profile 11 is a keyway and the second plug profile 12 is a feather key.
  • a bolt 14 and a spring 42 are provided.
  • a push button 25 is pressed against the force of the spring 42, which pushes the bolt 24 back into the shaft 13 via a wedge surface 43, whereby the bolt 24 disengages from the wiper 4.
  • Figure 3b shows that the wiper 4 has a hub ring 32, the inside diameter of which is an exact fit with the outside diameter of the shaft 13.
  • Holding grooves 20, which run parallel to the central axis 5, are introduced into the outer circumferential surface of the wiper 4 at a uniform distance from one another.
  • facing strips 29 are seated, which, in contrast to the hub ring 32, consist of an absorbent material that stores the oil.
  • the covering strips 29 form the first and second circumferential sections 1, 2 and can be glued to the hub ring 32.
  • Figure 4 shows a ratchet wheel or ratchet wheel 10 of the indexing gear 9.
  • the ratchet wheel 10 is arranged coaxially with the shaft 13 and connected in a rotationally fixed manner.
  • a transport pawl 26 and a locking pawl 27 engage in the ratchet wheel 10.
  • the transport pawl 26 is mounted in a plate 44 on which the actuator 8 engages in order to pivot the plate 44 together with the transport pawl 26 to and fro about the central axis 5 or the shaft 13.
  • the transport pawl 26 When pivoting clockwise, the transport pawl 26 is moved relative to the ratchet wheel 10, which is blocked by the pawl 27 in the process.
  • the transport pawl 26 takes the ratchet wheel 10 with it, whereby a switching step of the wiper 4 takes place, in which the shaft 13 together with the wiper 4 sitting on it from a first position 4.1 ( Figure 1a ) to a second position 4.2 ( Figure 1b ) is rotated.
  • the actuator 8 is designed as a double-acting pneumatic working cylinder. Instead, it can also be designed as a single-acting working cylinder combined with a return spring. If the shaft 13 is mounted in the bearing lever 18 via a freewheel, the pawl 27 can be omitted. The pawl 27 or the freewheel also prevent the rotating bearer ring 3 from twisting the wiper 4 resting on it when the rotating bearer ring 3 is wiped off.
  • the oil supply 28 can drip from a drip tube 48 or spray it on by means of a nozzle head 47 and the oil supply 28 can either be attached to a frame wall 45 or to the bearing lever 18 which is movable relative to the frame wall 45.
  • Figure 7 shows a design of the wiper 4 in which the hub ring 32 is axially composed of a first segment 32.1 and a second segment 32.2.
  • the two segments 32.1, 32.2 each have a comb-shaped driver edge 48 which engages in the driver edge of the respective other segment in order to connect the two segments 32.1, 32.2 to one another in a rotationally fixed manner.
  • Each segment 32.1, 32.2 carries a covering ring 31 made of absorbent material, for example made of felt, nonwoven or a foamed thermoplastic.
  • Figure 8 shows a design of the wiper 4, in which this has the shape of a circular cylinder ring 33 with a rounded surface 34 on which the first and second circumferential sections 1, 2 merge into one another without a visible border.
  • Figure 9 shows another design of the wiper 4, in which the wiper 4 is designed as a prism ring 35 with facet surfaces 36 which form the first and second circumferential sections 1, 2.
  • the coating can be omitted and the rounded surface 34 or the facet surfaces 36 can consist of the same material as the hub ring 32.
  • an annular groove 49 made in the circumferential surface of the wiper 4, in which the bolt 24 engages when the wiper 4 is axially secured on the shaft 13.
  • FIG 10 shows a clamp holder 37 for a covering strip 29 ( Figure 3b ).
  • the clamp holder 37 consists of a first clamp 51 and a second clamp 52, which are assembled along a joining line.
  • the joining line has form-locking elements 50 in a U-shape and a shape complementary thereto.
  • the two clamps 51, 52 each have an angular profile and a toothing 38 on their upper longitudinal edge which engages in the covering strip 29 when clamped.
  • the clamp holder 37 can consist of spring steel or a comparable flexible plastic.
  • Figure 11 shows the hub ring 32, which in this variant has a star-shaped profile.
  • the peripheral surface of the hub ring 32 is formed by projections with a T-profile or mushroom profile and recesses with a complementary profile in between.
  • the example of a recess shows that a clamp holder 37 is inserted into each recess, into which a covering strip (not shown) is clamped, whereby the first circumferential section 1 and the second circumferential section 2 are formed.
  • the clamped covering strips protrude from the depressions so that they protrude radially outward slightly beyond the projections with respect to the wiper 4.
  • the driver edge 48 ( Figure 7 ) has resilient snapper 53.
  • a modification of the wiper 4 is shown therein Figure 7 shown, the first plug-in profile 11 on the hub ring 32 being designed as a splined shaft profile 39 and the second plug-in profile 12 on the respective lining ring 31 as an inner profile that fits perfectly with the splined shaft profile 39.
  • Figure 3b modifications of the wiper 4 are made Figure 3b shown, wherein the first peripheral portion 1 is impregnated or soaked with oil or another suitable lubricant and the second peripheral portion 2 is not, that is, dry.
  • the lubricant With the moist, first circumferential section 1, the lubricant is transferred to the bearer ring 3. Then the transferred lubricant is distributed and finely metered with the dry, second circumferential section 2.
  • the first and second circumferential sections 1, 2 can consist of the same material or different materials.
  • first circumferential sections 1 are arranged at a distance in the circumferential direction from the second circumferential sections 2 arranged in between, so that there are gaps between the dry and moist covering strips 29, which allow the direct transfer of the lubricant from the moist to the dry covering strips, e.g. during the storage of wipers 4 prevent.
  • an electronic controller 16 controls the actuator 8 and the working cylinder 40 in accordance with a program running in the controller 16, in which in a first step 21 the wiper 4 with its first circumferential section 1 is placed against the bearer ring 3 by the working cylinder 40 . In a second step 22, the first Circumferential section 1 oil is applied to the bearer ring 3 rotating with the plate cylinder 17. Then, in a third step 23, the wiper 4 is turned off again by the bearer ring 3 and rotated step by step by the actuator 8 and the indexing gear 9 in order to switch from the first circumferential section 1 to the second circumferential section 2 or to switch the second circumferential section 2 ready for use.
  • the maintenance program can end at this point or - as in Figure 15b shown with a broken phantom line - include a second pass in which the second circumferential section 2 is used and in the third step 23 the wiper 4 is clocked from the second circumferential section 2 to a fresh, first circumferential section 1.
  • Figure 16a shows that a single lining ring 31 with a circular profile is present for each wiper 4.
  • the lining ring 31 consists of a soft, absorbent material, for. B. felt.
  • the lining ring 31 has a continuous axial bore 58 which, for. B. can be introduced by punching.
  • the axial bore 58 and the outer circumferential surface of the hub ring 32 are dimensioned to fit one another with respect to their diameter, so that after the lining ring 31 has been slipped onto the hub ring 32, the former sits tightly on the latter.
  • Figure 16b shows that the hub ring 32 has a first disk 54 at one end and the first plug profile 11 at the other end.
  • the first plug profile 11 is designed as a U-shaped edge recess.
  • the first disk has points 56 on its side face facing the first plug-in profile 11.
  • Figure 16c shows that the shaft 13 has a second disc 55 and a free end.
  • the second plug-in profile 12 is arranged in the direction of this free end next to the second disk 55.
  • the second plug profile 12 is designed as a feather key.
  • the second disk has points 57 on its side surface facing the second plug-in profile 12.
  • Figure 16d shows how the lining ring 31 is slipped onto the hub ring 32, which the operator can do himself.
  • the lining ring 31 is an inexpensive disposable item and can easily be replaced with a fresh one when worn.
  • the lining ring 31 is easily attached to the hub ring 32 outside of the printing press 15. If there are two hub rings 32 per bearer ring maintenance device, the lining ring 31 of one hub ring 32 can be changed while the other hub ring 32 is still in use the printing press 15 is located. This reduces machine downtime.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP19195549.1A 2019-09-05 2019-09-05 Dispositif, essuie-glace, revêtement d'essuie-glace et procédé d'entretien d'une bague de cylindre Pending EP3789199A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19195549.1A EP3789199A1 (fr) 2019-09-05 2019-09-05 Dispositif, essuie-glace, revêtement d'essuie-glace et procédé d'entretien d'une bague de cylindre
CN202010920629.3A CN112440557B (zh) 2019-09-05 2020-09-04 用于维护滚枕环的设备、擦拭件、擦拭件衬垫和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19195549.1A EP3789199A1 (fr) 2019-09-05 2019-09-05 Dispositif, essuie-glace, revêtement d'essuie-glace et procédé d'entretien d'une bague de cylindre

Publications (1)

Publication Number Publication Date
EP3789199A1 true EP3789199A1 (fr) 2021-03-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19195549.1A Pending EP3789199A1 (fr) 2019-09-05 2019-09-05 Dispositif, essuie-glace, revêtement d'essuie-glace et procédé d'entretien d'une bague de cylindre

Country Status (2)

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EP (1) EP3789199A1 (fr)
CN (1) CN112440557B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112440557A (zh) * 2019-09-05 2021-03-05 海德堡印刷机械股份公司 用于维护滚枕环的设备、擦拭件、擦拭件衬垫和方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115122788B (zh) * 2022-09-01 2022-11-18 新乡市新机创新机械有限公司 一种轮转喷墨印刷机滚筒清理装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522743A1 (de) * 1974-06-11 1976-01-02 Dainippon Printing Co Ltd Vorrichtung zum reinigen des offsetzylinders einer lithographischen offsetdruckmaschine
DE7710395U1 (de) 1977-04-01 1977-09-08 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Vorrichtung zum reinigen von schmitzringen an zylindern von druckmaschinen
EP0224930A2 (fr) * 1985-12-06 1987-06-10 Fujisawa Pharmaceutical Co., Ltd. Dispositif pour imprimer des pastilles
DE29512758U1 (de) * 1995-08-08 1995-10-19 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Reinigungsvorrichtung zum Reinigen von Zylindern einer Druckmaschine
DE102007025982A1 (de) * 2007-06-04 2008-12-11 Technotrans Ag Reinigungsvorrichtung für Druckmaschinen mit Förderwendel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITGE20030050A1 (it) * 2003-07-11 2005-01-12 Finelettra Internat S A Apparato per la pulizia dei cilindri in caucciu' delle
US20080229953A1 (en) * 2007-03-20 2008-09-25 Komori Corporation Cleaning apparatus
DE102008046792A1 (de) * 2007-09-20 2009-04-02 Heidelberger Druckmaschinen Ag Druckmaschine mit Schmitzringen
CN204431913U (zh) * 2014-12-22 2015-07-01 理想科学工业株式会社 固定构件和孔版印刷装置
EP3789199A1 (fr) * 2019-09-05 2021-03-10 Heidelberger Druckmaschinen AG Dispositif, essuie-glace, revêtement d'essuie-glace et procédé d'entretien d'une bague de cylindre

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522743A1 (de) * 1974-06-11 1976-01-02 Dainippon Printing Co Ltd Vorrichtung zum reinigen des offsetzylinders einer lithographischen offsetdruckmaschine
DE7710395U1 (de) 1977-04-01 1977-09-08 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Vorrichtung zum reinigen von schmitzringen an zylindern von druckmaschinen
EP0224930A2 (fr) * 1985-12-06 1987-06-10 Fujisawa Pharmaceutical Co., Ltd. Dispositif pour imprimer des pastilles
DE29512758U1 (de) * 1995-08-08 1995-10-19 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Reinigungsvorrichtung zum Reinigen von Zylindern einer Druckmaschine
DE102007025982A1 (de) * 2007-06-04 2008-12-11 Technotrans Ag Reinigungsvorrichtung für Druckmaschinen mit Förderwendel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112440557A (zh) * 2019-09-05 2021-03-05 海德堡印刷机械股份公司 用于维护滚枕环的设备、擦拭件、擦拭件衬垫和方法
CN112440557B (zh) * 2019-09-05 2024-07-23 海德堡印刷机械股份公司 用于维护滚枕环的设备、擦拭件、擦拭件衬垫和方法

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CN112440557B (zh) 2024-07-23
CN112440557A (zh) 2021-03-05

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