CN1025169C - Spray blanket cleaning system - Google Patents

Spray blanket cleaning system Download PDF

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Publication number
CN1025169C
CN1025169C CN 90104421 CN90104421A CN1025169C CN 1025169 C CN1025169 C CN 1025169C CN 90104421 CN90104421 CN 90104421 CN 90104421 A CN90104421 A CN 90104421A CN 1025169 C CN1025169 C CN 1025169C
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CN
China
Prior art keywords
solvent
water
jet rod
rubber
air
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.)
Expired - Fee Related
Application number
CN 90104421
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Chinese (zh)
Other versions
CN1053904A (en
Inventor
查尔斯·R·盖斯派瑞尼
卡尔·阿诺德斯
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.)
BALDWIN TECHNOLOGY Co
Baldwin Technology Corp
Original Assignee
BALDWIN TECHNOLOGY Co
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 BALDWIN TECHNOLOGY Co filed Critical BALDWIN TECHNOLOGY Co
Publication of CN1053904A publication Critical patent/CN1053904A/en
Application granted granted Critical
Publication of CN1025169C publication Critical patent/CN1025169C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/06—Cleaning arrangements or devices for offset cylinders
    • 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
    • B41P2235/26—Spraying 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
    • B41P2235/30—Recovering used solvents or residues
    • B41P2235/31—Recovering used solvents or residues by filtering

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

A spray blanket cleaning system is provided for removing piling, lint and ink from blanket cylinders in a plurality of web or offset printing presses. Operation is effected by fluid control systems that direct solvent, water and air to spray systems in specific quantities and at specific pressures. The spray systems are point of use systems that mix solvent and water in a tube then eject the mixture to a connecting spray bar. The mixed fluid is then ejected by air pressure through the spray bar as sprayed fluid. The action of the spray in combination with the rotation of the blanket cylinder and the web, is such as to loosen dust, debris and lint from the blanket cylinder and collect it on the web passing out of the system.

Description

Spray blanket cleaning system
The present invention relates to the device that washes down of printing machine, relate in particular to the automatic cleaning system of blanket cylinder in the offset press (blanket cylinder).
In the web offset printing process, it is confessedly needing to clean blanket cylinder, and along with the printing of printed matter, the residue that is caused by printing ink, paper and black liquid can make blanket cylinder pollute.After certain hour, must clean blanket cylinder with the solvent or the mixture of solvent and water and remove residue.If do not clean, printing quality can reduce, and the possibility of roll web fragmentation can increase.Announced the method for several cleaning blanket cylinders in the prior art.
Manual cleaning method is to be cleaned with cleaning fluid is manual by the printing personnel when printing machine is shut down.In the method, towel is soaked with cleaning fluid, mechanically wipe residue.Also can when working, printing machine remove to clean blanket cylinder by hand.Clean causing the rubber specific region that printing quality descends by one of printing member.Though this ablution can be boosted productivity, it is unsafe, because the rotating speed of blanket cylinder is very high.
In printing process, use the rubber automatic flushing device regularly to clean blanket cylinder to guarantee the Expected Results of higher security and productivity ratio and printed matter.Adopted several auto-cleaning methods to realize this cleaning.Narrated a kind of wiper formula system in U.S. Pat 4344361 and US4757763, it has used a kind of wiper of disposing, and is placed on the pressure pad that can pressurize.Wiper soaks with cleaning fluid, is pressed on the rubber, and advances gradually to clean.
Brush formula system applies a rotary brush, it is pressed on the rubber.With before rubber contacts, brush is by wet with solvent.Remove and the residue be stained with on the brush is collected into Geju City solvent collection system from rubber.Usually, this solvent is through separating and handling, and removes residue and reclaims solvent.
The injecting type system utilizes to be installed in a near jet rod of rubber.It is ejected into cleaning fluid on the blanket cylinder.The jet rod of prior art for example described in the U.S. Pat 4686902, has adopted in a container a kind of effective emulsion-like solution that water and solvent are pre-mixed and form.But this method has shortcoming, and after in a single day cleaning solvent mixed, the ratio of solvent and water can not change again in the solution, unless purging system drains solution earlier and washes, adds the solution of new ratio again.In addition, mixed liquor is circulation or stirring constantly, to keep its emulsification shape.The present invention need or not circulation yet or stir cleaning fluid with water and solvent in a container or in the pre-mixing apparatus; Therefore, can change ratio in the emulsified solution as required continuously, and not require and drain and wash purging system.
In some other injecting type systems, for example to be narrated in the German patent DE 2826135, the quantity of the cleaning fluid that is sprayed by jet rod is subjected to the control and the restriction of jet rod cavity volume.Especially, this system divides works periodically, and one of them cycle is to be full of the jet rod inner chamber fully with cleaning fluid, and next cycle is to be pressed into air to implement injection.The present invention has avoided the action of this periodicity, has adopted when cleaning fluid and has entered the method that jet rod just can continuous injection comes out from jet rod.The present invention also makes the amount of water and solvent adjust respectively, and they are not subjected to the restriction of jet rod cavity volume.
It is dangerous or even burned the blast that causes etc. by excessive solvent that the other problem that runs in traditional purging system also has that drier damages.Usually, when printing machine shutdown maintenance or when maintenance, ink roller series is clamminess owing to printing ink residue and residue become.If printing machine restarts in this case, roll web just has the very big possibility of being torn up.Tear up for fear of roll web, solvent is added on the rubber in advance, perhaps oil is annotated on the roller series, make the wetting printing ink that is clamminess that softens of rubber by the printing personnel.Yet the not only danger but also waste of this way is because it is uncontrolled and may set off an explosion to enter the quantity of solvent of drier.Simultaneously, can make ink color impaired during the oily disperse of injection, cause paper waste.The present invention has adopted the method for automatic pre-wetting rubber, has reduced the uncontrolled danger that produces blast of solvent because of applying, so can avoid top this problem.
Therefore, an object of the present invention is to provide a kind of improved spraying system that is used to clean blanket cylinder when printing machine moves, it needn't make printing machine work interrupt, and can not cause excessive waste in service.This just can make the printed matter picture clear, and reduces downtime.It also allows to use the paper material of the different brackets with higher fiber content.
Another object of the present invention is to use the least possible quantity of solvent to guarantee the safety of drier.
Another purpose of the present invention is to adopt the hybrid system of a kind of like this water and solvent, and it does not need circulation or stirs cleaning fluid.
Another object of the present invention is can adjust the water yield and quantity of solvent respectively to each group printed matter.
Another object of the present invention provides a kind of purging system, and it can side by side or sequentially clean all printing machine units by selecting suitable control program.
Another object of the present invention is that a kind of pre-wettability is provided in injecting type rubber purging system, to get rid of breaking of when starting roll web.
Another object of the present invention is that the flow direction of controlling solvent makes roll web evenly wetting.If cylinder the right is wetting early than the cylinder left side, then roll web may laterally offset or is subjected to uneven pulling force and tears up.
According to the present invention, generally speaking provide and a kind ofly be used for printing machine when work on many roll webs or the injecting type rubber purging system that cleans of the rubber on the offset press.This system have by control module guiding, press the hydraulic control system that distributes solvent, water and air to spraying system with certain proportion amount and ratio.This injecting type rubber purging system can periodically be driven, side by side or respectively to spray the rubber surface of web press unit.
The automatic driving of spraying system of the present invention and operating frequency be by the control element adjustment, and can be adjusted according to running parameter various expections or that observe by a press operator, for example according to the running length of printing machine and the fibre-bearing amount of paper wood etc.
The above-mentioned each side purpose of system of the present invention, feature and advantage, according to below in conjunction with the narration of accompanying drawing to preferred embodiment, those skilled in the art just can check on.
Fig. 1 is the basic liquid stream of a preferred embodiment of the present invention and the block diagram of control module;
Fig. 2 is the side views of central authorities for the streaming spraying system;
Fig. 3 is the side view of end for the streaming spraying system.
Now, with reference to accompanying drawing, especially accompanying drawing 1, and its one of expression is the fluid control systems that watertight aircase 2 and fluid tank 4 are formed by two kinds of critical pieces.Every printing machine watertight aircase 2 of installing and two fluid tank 4, they are controlled essential fluid and the air of supplying with spraying system.A kind of central authorities are shown in Fig. 2 for the streaming spraying system, and a kind of end is shown in Fig. 3 for the streaming spraying system.This fluid control systems is by control module 28 guiding, and amount and ratio are pressed and regulated solvent, the water and air of supplying with spraying system in proportion.
Watertight aircase 2 provides stable air pressure according to the needs of systemic-function.Compressed air enters watertight aircase 2 by conduit 6 and supplies to an air valve manifold 5.Then, air flows via air cleaner 11, fluid jet regulator 10 and fluid injection valve 12.When fluid injection valve 12 controlled unit 28 drive is that the air of voltage stabilizing flows out watertight aircase 2 and supplies to corresponding fluid tank 4.Then, the air air back valve 50 of flowing through enters a fluid manifold 14, and flows in the mixing tube 21.Then, air is ejected into jet rod 30(Fig. 2 and Fig. 3 with solvent and the water that mixes from mixing tube 21) in.
The solvent of supercharging is sent to a solvent manifold inlet 18 from solvent source 16 by solvent adjustment device 15 and via conduit 8.Then, solvent flows to solvent valve 20 by a solvent filter 23.When solvent valve 20 controlled unit 28 drive, its incoming fluid manifold 14.Flow to subsequently in the mixing tube 21.Fluid control device, for example solvent flow measurement hole 40 and solvent check-valves 51 are plugged between solvent valve 20 and the fluid manifold 14.
The water of supercharging 22 is sent to water manifold inlet 24 by water regulator 42 and via conduit 9 from the source.Then, water passes to water valve 26 via a water filter 44.When water valve 26 controlled unit 28 drove, its incoming fluid manifold 14 flow in the mixing tube 21 subsequently.Fluid control device, for example water flow measurement hole 48 and Water Check Valve 52 are plugged between water valve 26 and the fluid manifold 14.Water valve and solvent valve can side by side or sequentially be driven by control module 28.Mixing tube 21 can as shown in Figure 2, also can supply stream to jet rod 30 ends, as shown in Figure 3 to jet rod 30 central authorities for stream.
In Fig. 2 and 3, the mixture of water and solvent is injected in the jet rod 30 through mixing tube 21 because of air pressure.So the nozzle 32 of mixture cleaning fluid on jet rod 30 is splatter liquid and ejects.These characteristics of application mix liquid have been eliminated the requirement that must make two kinds of continuous mixed flow of fluid.Because wash liquid stream also ejects from jet rod simultaneously through jet rod, therefore utilize these characteristics of mixing also to eliminate to being full of the demand of jet rod in advance.Nozzle 32 on the jet rod 30 after use by the air pressure purge, with anti-clogging.
Jet rod 30 be usually located at printing machine feed side blanket cylinder 36 near.Nozzle 32 on the jet rod 30 has many, is 8 or more at least, is preferably 15 or more.The position of nozzle 32 is smaller from the distance of blanket cylinder 36, is recommended as about 1～4 inch, and the seedpod of the lotus shape cleaning fluid 34 of nozzle 32 ejections will overlap on blanket cylinder 36 mutually.Because nozzle 32 quantity are many, the position of permission jet rod 30 still can keep the overlapping of seedpod of the lotus shape cleaning fluid very close to blanket cylinder 36.Jet rod 30 can reduce the solvent atomizing near blanket cylinder 36 and be dissipated in the pressroom atmosphere, and has also reduced the requirement of solvent.
Include the inner chamber 48 that is connected with each nozzle 32 in the jet rod 30.The quantity approximately equal that the size of inner chamber 48 will accomplish to make the cleaning mixed liquor of pressurization to spray from each nozzle.For example, when the pressure that uses 25～45 pounds/square inch, the diameter of inner chamber 48 is about 1/8～3/16 inch.
Control module 28 can be controlled the cleaning frequency of one or more printing machine.This control module 28 can be with automated manner or manual mode work.Automated manner is used for the automatic cleaning of printing machine rubber.The program that control module 28 uses can be regulated ratio, expulsion pressure and the injecting time of employed solvent and water at least.Control module 28 also makes during starts rubber by wetting in advance.During a more than printing machine, this control system can accomplish to make each blanket cylinder simultaneously or in a sequence to clean.
The above only is a schematic illustration of the present invention, actually is not limited to specific embodiment discussed herein.Those skilled in the art may make various changes to the present invention in this area, replace or modification, and this all belongs to determined principle of claim of the present invention and category.

Claims (14)

1, a kind of blanket cylinder to printing machine apply solvent and water mixed liquor, clean the purging system of rubber with spray regime, this system comprises:
(a) solvent source device;
(b) water source device;
(c) air source device;
It is characterized in that:
(d) mixing tube is in order to solvent, the water and air that is provided by above-mentioned solvent source device, water source device and air source device respectively to be provided;
(e) solvent control device is connected with described solvent source device, and it contains valving, in order to carry controlled solvent to above-mentioned mixing tube;
(f) water controller is connected with described water source device, and it contains valving, in order to carry controlled water to described mixing tube;
(g) pneumatic control device is connected with described air source device, and it contains valving, in order to carry controlled air to described mixing tube;
(h) micro-processor control device, it is connected with the control device of described solvent, water and air, in order to drive described solvent, water and air control device respectively, be sent to described mixing tube with the solvent and the water of inciting somebody to action by a certain percentage, and utilize described air in the timing of control, described solvent and water to be discharged;
(i) jet rod device, it is connected with described mixing tube, in order to receive and to distribute described solvent and water, a plurality of nozzles is arranged on this jet rod, in order to spray described solvent and water, they is sprayed onto on the described blanket cylinder.
2, system according to claim 1 is characterized in that, described mixing tube is for the central authorities that flow to described jet rod.
3, system according to claim 1 is characterized in that, described mixing tube is for the end that flows to described jet rod.
4, system according to claim 2 is characterized in that, described many nozzles are eight or more a plurality of nozzles that are on the described jet rod.
5, system according to claim 3 is characterized in that, described many nozzles are eight or more a plurality of nozzles that are on the described jet rod.
6, system according to claim 2 is characterized in that, described jet rod is positioned at apart from about one to the four inch place of described rubber.
7, system according to claim 3 is characterized in that, described jet rod is positioned at apart from about one to the four inch place of described rubber.
8, system according to claim 5 is characterized in that, described jet rod is positioned at apart from about one to the four inch place of described rubber.
9, system according to claim 4 is characterized in that, described jet rod is positioned at apart from about one to the four inch place of described rubber.
10, system according to claim 6 is characterized in that, described jet rod is positioned at apart from about one to the four inch place of described rubber.
11, system according to claim 1 is characterized in that, described micro-processor control device during starts drives water, solvent and pneumatic control device at described blanket cylinder, with pre-wetting described rubber.
12, system according to claim 1 is characterized in that, described micro-processor control device drives water, solvent and pneumatic control device, simultaneously or in a sequence cleans described each rubber.
13, system according to claim 1 is characterized in that, and then described micro-processor control device makes described air blow through short time of described nozzle after described rubber cleans.
14, system according to claim 1 is characterized in that, described jet rod device includes an inner chamber, and the size of this inner chamber accomplishes to make the quantity approximately equal of the cleaning mixed liquor of pressurization from each nozzle ejection.
CN 90104421 1990-02-06 1990-06-16 Spray blanket cleaning system Expired - Fee Related CN1025169C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47498390A 1990-02-06 1990-02-06
US07/474,983 1990-02-06

Publications (2)

Publication Number Publication Date
CN1053904A CN1053904A (en) 1991-08-21
CN1025169C true CN1025169C (en) 1994-06-29

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ID=23885765

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 90104421 Expired - Fee Related CN1025169C (en) 1990-02-06 1990-06-16 Spray blanket cleaning system

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EP (1) EP0441019B1 (en)
JP (1) JP3043380B2 (en)
CN (1) CN1025169C (en)
DE (1) DE69020882T2 (en)

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IT1321266B1 (en) * 2000-05-19 2004-01-08 Marco Corti ROTARY BRUSH METHOD AND DEVICE FOR CLEANING THE CYLINDERS OF THE PRINTING MACHINES.
DE10154430B4 (en) * 2001-11-06 2009-04-02 Manroland Ag Method and device for erasing a printed image on a printing form for a printing press
DE202004001174U1 (en) * 2004-01-27 2004-04-08 Man Roland Druckmaschinen Ag Supply device for a cleaning device in a processing machine
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DE102004011860A1 (en) * 2004-03-11 2005-09-29 Koenig & Bauer Ag Broad spray head for printing machine cylinder or roller cleaning system covers entire width of cylinder and has mixer at center point creating homogenous mix of cleaning fluid and air
DE102006015831A1 (en) * 2006-04-03 2007-10-11 Technotrans Ag Washing device for an offset printing machine
DE102007060854A1 (en) * 2007-12-18 2009-06-25 BSH Bosch und Siemens Hausgeräte GmbH Cleaning device for a component loaded with lint in a domestic appliance, and domestic appliance and method for cleaning a component loaded with lint
DE102008042741B4 (en) 2008-10-10 2016-07-28 Koenig & Bauer Ag Cleaning device for a cylinder or a roller of a printing machine
CN102151627B (en) * 2011-04-01 2012-12-19 上海大学 Liquid control system for double-fluid injector
CN102896894B (en) * 2012-10-15 2015-08-12 北京印刷学院 A kind of spraying mechanism for blanket cylinder cleaning device
AU2013200610B1 (en) * 2013-02-05 2014-02-27 Ecochem Australia Pty Ltd System and method for automatically cleaning converters
CN103568558A (en) * 2013-10-21 2014-02-12 安徽华印机电股份有限公司 Cleaning device for rotary drum of offset printing machine
CN112208207A (en) * 2020-11-03 2021-01-12 北京嘉鸿汇众技术有限公司 Switching device for cleaning imprinting device of printing machine
CN112793302A (en) * 2021-01-29 2021-05-14 北京嘉鸿汇众技术有限公司 Impression cleaning transfer box of printing machine
CN113635672A (en) * 2021-04-01 2021-11-12 北京嘉鸿汇众技术有限公司 Automatic cleaning device for rubber cloth

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Also Published As

Publication number Publication date
EP0441019B1 (en) 1995-07-12
EP0441019A1 (en) 1991-08-14
JP3043380B2 (en) 2000-05-22
CN1053904A (en) 1991-08-21
DE69020882D1 (en) 1995-08-17
JPH03239548A (en) 1991-10-25
DE69020882T2 (en) 1996-03-21

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