CN1088652C - Apparatus for cleaning of cylinder - Google Patents

Apparatus for cleaning of cylinder Download PDF

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Publication number
CN1088652C
CN1088652C CN99102730A CN99102730A CN1088652C CN 1088652 C CN1088652 C CN 1088652C CN 99102730 A CN99102730 A CN 99102730A CN 99102730 A CN99102730 A CN 99102730A CN 1088652 C CN1088652 C CN 1088652C
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CN
China
Prior art keywords
pressure pad
cylinder
shape
opposite side
clean cloth
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
CN99102730A
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Chinese (zh)
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CN1229029A (en
Inventor
大沼拓
白井哲雄
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 Japan Ltd
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Baldwin Japan Ltd
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 Japan Ltd filed Critical Baldwin Japan Ltd
Publication of CN1229029A publication Critical patent/CN1229029A/en
Application granted granted Critical
Publication of CN1088652C publication Critical patent/CN1088652C/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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or 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
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/246—Pressing the cleaning cloth against the cylinder

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

Abstract

The invention discloses an apparatus for cleaning the outer surface of a cylinder with a cleaning fabric. The apparatus comprises a pressure pad molded out of elastomer which includes fibers incorporated thereinto. The cleaning fabric is directed between the pressure pad and the cylinder. The pressure pad is deformed by pressurized air so that the cleaning fabric can be pressed against the outer surface of the cylinder by the pressure pad to clean the outer surface of the cylinder.

Description

Cylinder cleaning devices
The present invention relates to a kind of device that is used for coming by clean cloth the washing barrel outer surface at offset press.This cylinder can be blanket cylinder, impression cylinder, inking roller or the like.The invention particularly relates to a kind of pressure pad, clean cloth is come the washing barrel outer surface by the outer surface that this pressure pad is pressed on cylinder.
In offset press, come the device of the outer surface of washing barrel can on market, obtain by clean cloth, as U.S. Patent No. 4344361 is disclosed.In this device, clean cloth 2 is as shown in Figure 8 between pressure pad 4 and cylinder 6.Pressure pad 4 comprises the extendible soft shell of being made by elastomeric material that the opposite side 8 that is parallel to cylinder 6 extensions is arranged.
This device is included in and is used to support the support bar 10 that extends and be mounted thereon between the pair of side plates 12 of pressure pad 4.Side plate 12 is installed on the frame of printing machine.Supporting pin 14 is fixed on the support bar 10 and extension between side plate 12.Clamp 16 is fixed on and supports on the pin 14, thus clamp 16 and support between the pin 14 chucking and fixedly opposite side 8 support pressure pad 4.Thereby pressure pad 4 comprises the protuberance that forms in the groove that is contained in clamp 16 along opposite side 8.
This device also is included in the donor rollers that is used to rotate 18 of extending and installing between the side plate 12.Clean cloth 2 is fed to pressure pad 4 from donor rollers 18 by spray boom 20.Spray boom 20 is used to spray cleaning agent or detergent to clean cloth 2.This device also is included in the reception roller 22 that is used to rotate that extends and be mounted thereon between the side plate 12.Clean cloth 2 is sent to by guide rod 24 from pressure pad 4 and receives on the roller 22.This device also comprises unshowned drive unit, be used for rotating off and on receive roller 22 with receive roller 22 around receive clean cloth 2, thereby clean cloth 2 can be sent to off and on by pressure pad 4.
In addition, air chamber 26 forms between pressure pad 4 and support pin 14 and links to each other with a unshowned compressor.Compressed air is fed to air chamber 26 from compressor, thereby pressure pad 4 can resilient expansion also thus can be towards the convex outer surfaces of cylinder 6 between opposite side 8.When cylinder 6 rotated with the direction shown in the arrow, clean cloth 2 was therefore clamped with certain clamping width between pressure pad 4 and cylinder 6, and was pressed on the outer surface of washing barrel 6 on the outer surface of cylinder 6 by pressure pad 4.
Thereby but compressed air discharges pressure pad 4 elastic shrinkage and has certain intervals with the outer surface of cylinder 6 from air chamber 26 then.Therefore clean cloth 2 breaks away from and withdrawal from the outer surface of cylinder 6.Clean cloth 2 is sent a length off and on to and is changed one section new clean cloth 2 on the pressure pad 4 then.
New clean cloth 2 can be pressed on the outer surface of washing barrel 6 on the outer surface of cylinder 6 by pressure pad 4 thereby pressure pad 4 reexpands.Pressure pad 4 is by the about 0.5Kg/cm of pressure 2Compressed air flexibly expand with the percentage elongation of 7-10% and shrink.
Yet pressure pad 4 is finished in the cleaning frequency of cleaning and must flexibly be expanded and shrink several times or tens times.In the printing house that forme is changed repeatedly, it is very usual finishing a plurality of cleaning frequencies within one day.Therefore pressure pad 4 will flexibly expand and shrink many times on the whole, thereby causes the tired and distortion of pressure pad 4.
In addition, pressure pad 4 adopts the rectangular in form that very big length-width ratio is arranged, as shown in Figure 9.Pressure pad 4 is not only fixed at opposite side 8 places tightly by clamp 16, and fixes in opposing ends.This cause the elastic expansion at opposite side 8, opposite end and other position of pressure pad 4 with shrink different and the factors such as clamping width on the outer surface of cylinder 6 of being pressed on as pressure pad 4 with the variation of service life.Therefore need often to adjust these factors, as the clamping width of pressure pad 4.Pressure pad 4 may be compromised the last time.In addition, thus near the position of pressure pad 4 clamp 16 produces stress concentrates this position to be easy to infringement.
Pressure pad 4 is made by special synthetic material by special method, obtains except that to the mechanical strength of bearing pressure pad 4 reexpansions and contraction the corrosion resistance of the cleaning agent that is used for washing barrel 6 outer surfaces or detergent such as dimethylbenzene.In the synthetic material of pressure pad 4 and in the preparation method of pressure pad 4, there is scrambling certainly, thereby causes that very big difference is arranged on the service life of pressure pad 4.
And when changing pressure pad 4 again in the maintenance at cylinder cleaning devices, thereby new pressure pad must be in the vertical and is transversely strained to be installed in and support on the pin 14.Support on the pin 14 if loosely be installed in, the outer surface that pressure pad 4 just can not be pressed on cylinder 6 expediently comes the outer surface of washing barrel 6.To be pressure pad 4 be pressed on the outer surface of cylinder 6 with certain clamping width to the problem of Cun Zaiing in this case, and this width is enough wide so that do not waste the material of clean cloth 2.Thereby most of users are not used for straining in the vertical and transversely pressure pad 4 and are installed in the special instrument that supports on the pin 14.Therefore, the user sends this device back to manufacturer usually and comes to change again pressure pad 4 there.
Therefore, an object of the present invention is to provide a kind of new improved device that overcomes the problems referred to above that is used for coming the washing barrel outer surface by clean cloth.
Another object of the present invention provides a kind of device that comprises pressure pad, and clean cloth is pressed on by this pressure pad on the outer surface of cylinder, and wherein pressure pad is improved and has improved mechanical strength.
Another object of the present invention is to reduce the fatigue of pressure pad and be deformed to minimum.
Another object of the present invention is to prevent the infringement of pressure pad and service life of improving pressure pad.
Another object of the present invention is that minimizing factor such as pressure pad are pressed on clamping width on the outer surface of cylinder with the minimum that changes to of service life, thereby reduces the number of times of adjusting.
Another object of the present invention is to change pressure pad without difficulty again.
The invention provides a kind of device that is used for coming the washing barrel outer surface by clean cloth.This device comprises the pressure pad of being made by the elastomeric material mold pressing that wherein is mixed with fiber.Clean cloth is between pressure pad and cylinder.Pressure pad is out of shape by compressed air, thereby clean cloth can be come the outer surface of washing barrel by the outer surface that pressure pad is pressed on cylinder.
Pressure pad can have the opposite side that is parallel to the cylinder extension, thereby pressure pad is out of shape the convex outer surfaces towards cylinder between opposite side.
Pressure pad can have the outer surface original-shape separately with cylinder, and after compressed air discharged, pressure pad restored between opposite side.
Pressure pad can reset into the original-shape recessed with respect to outer surface of cylinder between opposite side.
Pressure pad can be out of shape or reset into projection or recessed shape between opposite side and pressure pad does not have significant elastic expansion and contraction.
Pressure pad can distortion or recovery symmetrically between opposite side.
Fiber can comprise synthetic or natural fiber.
Fiber can adopt nonwoven that is mixed in the elastomeric material or the form of weaving cloth.
Fig. 1 is the cross-sectional view of pressure pad of the present invention.
Fig. 2 is the cross-sectional view after the pressure pad among Fig. 1 is out of shape by compressed air.
Fig. 3 is nonwoven that mixes in the elastomeric material of the pressure pad among Fig. 1 or the floor map of weaving cloth.
Fig. 4 is the floor map of another embodiment.
Fig. 5 is the side schematic view of the positioned opposite between pressure pad and the cloth in Fig. 1.
Fig. 6 is the side schematic view of another embodiment.
Fig. 7 is the side schematic view of another embodiment.
Fig. 8 is the cross-sectional view of the device of the outer surface that is used for washing barrel of the prior art.
Fig. 9 is the perspective view of the pressure pad among Fig. 8.
Referring now to accompanying drawing, Fig. 1 has shown the pressure pad 4 that adopts in the device of the present invention.This device is used for coming the washing barrel outer surface at offset press by clean cloth, the situation of device as shown in Figure 8.Clean cloth 2 is between pressure pad 4 and cylinder 6.Pressure pad 4 has the opposite side 8 that is parallel to cylinder 6 extensions.This device comprises as the same support bar 10 among Fig. 8, side plate 12, supports pin 14 and clamp 16.Clamp 16 is fixed on and supports on the pin 14, thus clamp 16 and support between the pin 14 chucking and fixedly opposite side 8 support pressure pad 4.This device also comprises as the same donor rollers 18 among Fig. 8, spray boom 20, receives roller 22 and guide rod 24, and supplies to the clean cloth 2 that receives roller 22 off and on by spray boom 20 and pressure pad 4 from donor rollers 18.Spray boom 20 is used to spray cleaning agent or detergent to clean cloth 2.
Pressure pad 4 is made by the elastomeric material mold pressing that wherein is mixed with fiber 28.This elastomeric material comprises corrosion proof synthetic rubber such as the nitrile rubber (nitril rubber) that has cleaning agent or detergent such as dimethylbenzene.Fiber 28 comprises synthetic or natural fiber.In this embodiment, fiber 28 adopts nonwoven that is mixed in the elastomeric material or the form of weaving cloth.
In addition, air chamber 26 forms between pressure pad 4 and support pin 14 and links to each other with a compressor, and compressed air is fed to air chamber 26 from compressor.Therefore pressure pad 4 be out of shape rather than elastic expansion between opposite side 8, thereby clean cloth 2 can be between pressure pad 4 and cylinder 6 be come the outer surface of washing barrel 6 with certain width clamping and by the outer surface that pressure pad 4 is pressed on cylinder 6, as shown in Figure 2.
In this embodiment, pressure pad 4 is out of shape between opposite side 8 and towards the convex outer surfaces of cylinder 6.In this case, the centre of pressure pad 4 is thinner than opposite side, thereby is convenient to distortion.Therefore, clean cloth 2 can clamp and be pressed on the outer surface of cylinder 6 reliably with certain width between pressure pad 4 and cylinder 6.
Compressed air discharges from air chamber 26 subsequently.Pressure pad 4 has the outer surface original-shape separately with cylinder 6, as shown in Figure 1.After compressed air discharged, pressure pad 4 reset into original-shape between opposite side 8.In this embodiment, pressure pad 4 resets into the original-shape recessed with respect to cylinder 6 outer surfaces between opposite side 8.Therefore clean cloth 2 breaks away from and withdrawal from the outer surface of cylinder 6.Clean cloth 2 is sent a length off and on to and is changed one section new clean cloth 2 on the pressure pad 4 then.
Thereby pressure pad 4 is out of shape the outer surface that new clean cloth 2 can be pressed on washing barrel 6 on the outer surface of cylinder 6 by pressure pad 4 once more.In this embodiment, pressure pad 4 is by the about 0.5Kg/cm of pressure 2Compressed air be out of shape.
Therefore, in the pressure pad 4 according to device of the present invention, fiber 28 has improved the mechanical strength of pressure pad 4 effectively, thereby even pressure pad 4 distortion and recovery many times also can sustain the distortion repeatedly and the recovery of pressure pad 4.On the other hand, elastomeric material and fiber 28 are worked in coordination, and obtain this clamping width thereby can be expediently when pressure pad 4 is pressed on the outer surface of cylinder 6 be out of shape along the outer surface of cylinder 6.
In addition, in this embodiment, pressure pad 4 is out of shape symmetrically between opposite side or resets into projection or recessed shape and pressure pad 4 does not have significant elastic expansion and contraction.This makes the fatigue of pressure pad 4 and distortion reduce to minimum, prevents the infringement of pressure pad 4 and service life of improving pressure pad 4.
And elastomeric material and fiber 28 are worked in coordination, and have obtained the stable repeatability of the distortion and the recovery of pressure pad 4.This clamping width that makes factor such as pressure pad 4 be pressed on the outer surface of cylinder 6 reduces to minimum with the variation of service life, thereby reduces the number of times of adjusting.
Incidentally, clean cloth 2 may be by cleaning agent or detergent and is wrinkling.This gauffer also is to be formed by the difference when receiving clean cloth 2 between the opposite end of roller 22 in accepting state.The gauffer that therefore need prevent clean cloth 2 when printing produces with the outer surface of cylinder 6 and contact, otherwise it will be upset the wet water on ink image and the outer surface that is applied to cylinder 6 and cause printing quality decline.In this embodiment, pressure pad 4 has the original-shape that is invaginated type with respect to the outer surface of cylinder 6, thus when restoring pressure pad 4 can with the outer surface of cylinder 6 distance of 6mm at least at interval.Therefore, even also can not producing with the outer surface of cylinder 6, clean cloth 2 gauffers do not contact.
When changing pressure pad 4 again when safeguarding, new pressure pad can not need special instrument and be installed on the support pin 14.The user can change pressure pad 4 without difficulty again.Therefore not needing to send this device back to manufacturer to change again pressure pad 4 there.
Fiber 28 should have and suppresses pressure pad 4 and be about 0.5kg/cm at pressure 2Compressed air under the intensity of elastic expansion.Fiber 28 is preferably made with the web form slubbing of about 1mm grid, thus prevent it from elastomeric material such as synthetic rubber, separate and make pressure pad 4 be convenient in the centre distortion.Fiber 28 can be made into along pressure pad 4 as shown in Figure 3 obliquely.Fiber 28 can be as shown in Figure 4 extends and is made into along the vertical and horizontal of pressure pad 4.
Pressure pad 4 adopts the rectangular in form that very big length-width ratio is arranged as mentioned above.Pressure pad 4 not only is fixed on opposite side 8 tightly but also is fixed on opposing ends by clamp 16.Therefore on vertically, be easier to elastic expansion and contraction in the horizontal.When being made into as shown in Figure 4, fiber 28 has limited pressure pad 4 elastic expansion in the horizontal effectively.
Fiber 28 can be mixed near the position that is positioned in the elastomeric material facing to the apparent surface of the pressure pad 4 of the outer surface of cylinder 6, as shown in Figure 5.In this case, wish to select the hardness of fiber 28 and the outer surface that thickness prevents cylinder 6 to be damaged by fiber 28.Also can form suitable roughness on the surface of pressure pad 4 by fiber 28 and come the outer surface of washing barrel 6 effectively.On the other hand, fiber 28 can be positioned at another near surface of pressure pad 4, as shown in Figure 6.They also can be between the apparent surface of pressure pad 4 position intermediate.
In this embodiment, fiber 28 should have the thickness of 0.1-1.0mm.Because fiber 28 has improved the mechanical strength of pressure pad 4 effectively, so do not need to add this disagreeable technology of special additive for the mechanical strength that improves elastomeric material.

Claims (8)

1. device that is used for coming the outer surface of washing barrel by clean cloth, described device comprises:
One pressure pad of making by the elastomeric material mold pressing that wherein is mixed with fiber, described clean cloth is between described pressure pad and described cylinder, described pressure pad is out of shape by compressed air, thereby described clean cloth can be come the described outer surface of washing barrel by the described outer surface that described pressure pad is pressed on cylinder.
2. device according to claim 1 is characterized in that, described pressure pad has the opposite side that is parallel to described cylinder extension, thereby described pressure pad is out of shape the described convex outer surfaces towards cylinder between described opposite side.
3. device according to claim 2 is characterized in that, described pressure pad has the outer surface original-shape separately with described cylinder, and after compressed air discharged, described pressure pad restored back described original-shape between described opposite side.
4. device according to claim 3 is characterized in that, described pressure pad resets into the described original-shape that is invaginated type with respect to the described outer surface of cylinder between described opposite side.
5. device according to claim 4 is characterized in that, described pressure pad is out of shape between described opposite side or resets into projection or recessed shape and described pressure pad does not have significant elastic expansion and contraction.
6. device according to claim 5 is characterized in that, described pressure pad is out of shape symmetrically between described opposite side or restores and projection or recessed.
7. according to the arbitrary described device of claim 1 to 6, it is characterized in that described fiber comprises synthetic or natural fiber.
8. device according to claim 7 is characterized in that, described fiber adopts the weaving that is mixed in the described elastomeric material or the form of nonwoven.
CN99102730A 1998-02-17 1999-02-15 Apparatus for cleaning of cylinder Expired - Fee Related CN1088652C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP05137598A JP3315074B2 (en) 1998-02-17 1998-02-17 Cylinder cleaning device
JP51375/98 1998-02-17

Publications (2)

Publication Number Publication Date
CN1229029A CN1229029A (en) 1999-09-22
CN1088652C true CN1088652C (en) 2002-08-07

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CN99102730A Expired - Fee Related CN1088652C (en) 1998-02-17 1999-02-15 Apparatus for cleaning of cylinder

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EP (1) EP0936068A1 (en)
JP (1) JP3315074B2 (en)
KR (1) KR19990072621A (en)
CN (1) CN1088652C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006015831A1 (en) * 2006-04-03 2007-10-11 Technotrans Ag Washing device for an offset printing machine
DE102006033398B4 (en) * 2006-07-19 2010-01-14 Technotrans Ag Washing device for printing machines
US20110056039A1 (en) * 2008-04-21 2011-03-10 Baldwin-Japan Ltd. Cylinder cleaning device
CN104108240B (en) * 2014-08-06 2016-05-11 宁波久源润滑设备制造有限公司 Offset printing press cylinder cleaner cloth beam cleaning cloth mounting structure
CN110539547A (en) * 2019-10-12 2019-12-06 北京嘉鸿汇众技术有限公司 Offset press blanket washs structure, device and offset press

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344361A (en) * 1979-04-19 1982-08-17 Baldwin-Gegenheimer Corporation Automatic blanket cylinder cleaner
CN1128213A (en) * 1994-08-09 1996-08-07 日本包德温株式会社 Cylinder cleaning apparatus
CN1140659A (en) * 1995-05-01 1997-01-22 鲍德温·格拉菲克系统有限公司 Mounting mechanisms for cloth rolls on press cylinder cleaning devices

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2872559B2 (en) * 1993-08-04 1999-03-17 ニッカ株式会社 Crimping pad for cleaning a printing press cylinder and the like, and method of manufacturing the same
DE19515721C2 (en) * 1995-05-03 2000-02-03 Heidelberger Druckmasch Ag Device for cleaning cylinder surfaces in rotary printing machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344361A (en) * 1979-04-19 1982-08-17 Baldwin-Gegenheimer Corporation Automatic blanket cylinder cleaner
CN1128213A (en) * 1994-08-09 1996-08-07 日本包德温株式会社 Cylinder cleaning apparatus
CN1140659A (en) * 1995-05-01 1997-01-22 鲍德温·格拉菲克系统有限公司 Mounting mechanisms for cloth rolls on press cylinder cleaning devices

Also Published As

Publication number Publication date
KR19990072621A (en) 1999-09-27
JPH11227170A (en) 1999-08-24
JP3315074B2 (en) 2002-08-19
CN1229029A (en) 1999-09-22
EP0936068A1 (en) 1999-08-18

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