CN103847223A - Squeegee device of printer - Google Patents

Squeegee device of printer Download PDF

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Publication number
CN103847223A
CN103847223A CN201310616133.7A CN201310616133A CN103847223A CN 103847223 A CN103847223 A CN 103847223A CN 201310616133 A CN201310616133 A CN 201310616133A CN 103847223 A CN103847223 A CN 103847223A
Authority
CN
China
Prior art keywords
scraper
roller
negative sense
doctor blade
blade device
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.)
Granted
Application number
CN201310616133.7A
Other languages
Chinese (zh)
Other versions
CN103847223B (en
Inventor
S·布奇科
M·施万特
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
Publication of CN103847223A publication Critical patent/CN103847223A/en
Application granted granted Critical
Publication of CN103847223B publication Critical patent/CN103847223B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/10—Doctors, scrapers, or like devices
    • B41F9/1072—Blade construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/10—Doctors, scrapers, or like devices
    • B41F9/1081—Doctors, scrapers, or like devices using two or more blades

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Coating Apparatus (AREA)

Abstract

The present invention provides a squeegee device (2) of a printer (4). The squeegee device (2) has a negative scraper (5) that is configured for doctoring a roller (1); a positive scraper (6) is arranged downstream of the negative scraper (5) in the direction of rotation of the roller (1).

Description

The doctor blade device of printing machine
Technical field
The present invention relates to a kind of doctor blade device of printing machine, it comprises the negative sense scraper for striking off roller.
Background technology
In DE102007053799A1, disclose a kind of doctor blade device, wherein, smooth scraper is arranged on after negative sense scraper, and described smooth scraper does not rest on roller and same negative sense ground orientation.Described negative sense scraper clamps in the first clamping device, and described the first clamping device is arranged on ink fountain.Described smooth scraper clamps in the second clamping device, and described the second clamping device is arranged on pelvic part, and described pelvic part is arranged on the below of described ink fountain.Described smooth scraper does not rest on roller and for the smooth ink forming on roller to be piled up.The reason that ink is piled up is the inevitably leakage through negative sense scraper and roller.
In DE102005061916A1, disclose equally a kind of doctor blade device, below described doctor blade device, be provided with for the ink collection container leaking.
In addition, DE4320833C1 only discloses prior art far away and has comprised chambered doctor blade, and described chambered doctor blade has the thickness scraper of forward closing scraper, negative sense working scraper and same negative sense.Described thickness scraper can temporarily be pressed against on roller, to do not need emptying ink chamber just can change working scraper.
Summary of the invention
Task of the present invention is to propose another doctor blade device.
Described task solves by the doctor blade device with feature described in claim 1.Comprise according to the doctor blade device of printing machine of the present invention: negative sense scraper, for striking off roller; With forward scraper, described forward scraper along the direction of rotation of described roller be arranged on described negative sense scraper after.
According in the improvement project of doctor blade device of the present invention, negative sense scraper and forward scraper fix to clamp in a common clamping device.
In another improvement project, negative sense scraper and forward scraper are configured to two scrapers of single type jointly.Comprise that the two scrapers that form the scraping blade of negative sense scraper and form the scraping blade of forward scraper are made up of independent member.Described independent member can have the profile of fork-shaped, and wherein, a yoke forms negative sense scraper and another yoke formation forward scraper.Described member can be metal sheet parts or plastic components.Described member can be also the composite of sandwich construction mode, and wherein, for example negative sense scraper is made up of sheet metal and forward scraper is made of plastics, and described plastics are securely connected with described sheet metal, for example bonding.
In another improvement project, forward scraper has the angle of pressing that is less than 45 °.
In another improvement project, forward scraper has hook-type.
In another improvement project, negative sense scraper defines the apotheca for coating liquid.
In another improvement project, doctor blade device is the component part of anilox roll-ink mechanism.
Brief description of the drawings
Favourable improvement project is drawn by following examples and affiliated the description of the drawings in other structure and in function.
Detailed description of the invention
Unique shown in the drawings of roller 1 and for coating liquid 3 being applied to the doctor blade device 2 on roller 1.Coating liquid 3 is ink or gloss varnish.Doctor blade device 2 is that scraper type ink fountain and roller 1 are anilox roll.Roller 1 and doctor blade device 2 are all the parts of printing machine 4.
Printing machine 4 is the offset presses with anilox roll-ink mechanism 25, and doctor blade device 2 is its parts.
Doctor blade device 2 comprises negative sense scraper 5 reverse or that thrust-type presses and in the same way or the pull-type forward scraper 6 pressing.Negative sense scraper 5 and forward scraper 6 by metal or plastics make, sheet or the bar of the ground springing of the pliable and tough or elasticity of flexure.Negative sense scraper 5 and forward scraper 6 are at least long as the working face of the transmission coating liquid 3 of roller 1 on the direction of measurement of the following stated: described direction of measurement vertically or with respect to the rotation of roller 1 extends abreast with respect to the plan of accompanying drawing.Negative sense scraper 5 is working scraper or supplies with scraper and define apotheca 8 with roller 1 together with rear wall 7.In apotheca 8, be provided with the storage capacity of coating liquid 3, and described storage capacity form liquid level 9, described liquid level in the time of printing operation the blade 10 in negative sense scraper 5 above.Negative sense scraper 5 supplies with coating liquid 3 and again unnecessary coating liquid 3 is struck off from roller 1 at this to roller 1 from apotheca 8 in the time of printing operation.Rear wall 7 can be adjusted, for example be supported swingably away from negative sense scraper 5, so that for example for the object of maintaining can reduce liquid level 9 until blade 10 belows.
Forward scraper 6 is the generations of striking off scraper or smooth scraper and having stoped following situation: the leakage of passing between roller 1 and setting negative sense scraper 5 thereon of coating liquid 3 region that is placed in doctor blade device 2 outsides at roller 1 on roller forms gathering of infringement printing quality.Forward scraper 6 has first side 11 and Second Edge 12, has interior angle between them.Interior angle is acute angle and in its summit, is provided with crooked position 13, by described crooked position, first side 11 and Second Edge 12 is interconnected.The crimp of the formation crooked position 13 by forward scraper 6 makes described forward scraper in section, have hook shape.Second Edge 12 is less than 45 °, is preferably less than 30 ° and be for example less than the acute angle of 15 ° and press in the β situation of angle and be pressed against on roller 1.Press angle β at Second Edge 12 and through the imaginary tangent line of the common contact point of the blade 14 of forward scraper 6 and the peripheral surface of roller 1.Forward scraper 6 is with the seamed edge of blade 14 or press radius in the peripheral surface of roller 1.Namely the end with blade 14 of forward scraper 6 does not tangentially exceed the peripheral surface of roller 1.Avoid thus ink in medial compartment 20 perimeters to pile up.Negative sense scraper 5 and forward scraper 6 respectively in one of quadrant of two bottoms of roller 1, the 3rd or fourth quadrant in rest on this roller.
In the time of printing operation, roller 1 rotates along direction of rotation 15.Observe along direction of rotation 15, forward scraper 6 be arranged on negative sense scraper 5 below and arrange the roller contact point 16 shown in symbolic in the accompanying drawings before.In roller contact point 16, another roller for good and all or periodically rests on roller 1, and coating liquid is delivered to described another roller from roller 1.Described another roller receives coating liquid 3 and the coating liquid of reception directly or by one or more intermediate calender rolls or intermediate calender rolls is transported to printable fabric indirectly from roller 1.Described another roller preferably ink applies roller and rests on plate cylinder in the time of printing operation.
Negative sense scraper 5 and immediately the forward scraper 6 after it are clamped in same clamping device 17 jointly.Clamping device 17 has the first clamp 18 and the second clamp 19, and negative sense scraper 5 and forward scraper 6 are jointly fixed to clamp between described the first clamp and described the second clamp.In the time fixing to clamp, at least one in described two clamps 17,18 can move with respect to another clamp.Forward scraper 6 can directly or according to the second flexible program rest on negative sense scraper 5 by intermediate layer according to the first flexible program indirectly with its first side 11.Intermediate layer can be film or thin slice.In the situation that has intermediate layer, described intermediate layer and negative sense scraper 5 assembly in three parts of clamping device 17 inner formation together with forward scraper 6.In the situation that lacking intermediate layer, negative sense scraper 5 and forward scraper 6---form two-part stacking as shown in FIG.---between the first clamp 18 and the second clamp 19.Make region that negative sense scraper 5 is placed in clamping device 17 outsides at it away from forward scraper 6 ground, carry out bending with the spacing increasing towards the direction of blade 10 with respect to forward scraper 6 by the compression between roller 1 and negative sense scraper 5.
Negative sense scraper 5, forward scraper 6 define the medial compartment 20 with arrow pointed shape together with roller 1.It is as far as possible little that the volume of medial compartment 20 should keep, and for this reason, the crooked position 13 of forward scraper 6 should be placed in the blade 10 near negative sense scraper 5 as far as possible.In order to realize described situation, it is as far as possible little that the radius of curvature of crooked position 13 should keep in the time of crimp.Draw in the following manner arrow pointed shape: between negative sense scraper 5 and the first side 11 of forward scraper 6, be provided with the first wedge shape space 21, and be provided with the second wedge shape space 22 between roller 1 and the Second Edge 12 of forward scraper, wherein, the first wedge shape space 21 and the second wedge shape space 22 converge or are transitioned in the 3rd wedge shape space 23 between negative sense scraper 5 and roller 1.The scope of freedom that deviates from roller 1 24 of forward scraper 6 starts obliquely upwards to extend against gravity direction from blade 14.The scope of freedom 24 is arranged on Second Edge 12 and is positioned at the inside of hook-type.
The data that comprise in brief description of the drawings are also applicable to the flexible program of the two scrapers of not shown single type in the meaning of conversion for scraper geometry and scraper function.
Reference numerals list
1 roller
2 doctor blade devices
3 coating liquids
4 printing machines
5 negative sense scrapers
6 forward scrapers
7 rear walls
8 apothecas
9 liquid levels
10 blades
11 first sides
12 Second Edges
13 crooked positions
14 blades
15 direction of rotation
16 roller contact points
17 clamping devices
18 first clamps
19 second clamps
20 medial compartments
21 first wedge shape spaces
22 second wedge shape spaces
23 the 3rd wedge shape spaces
24
25 anilox roll-ink mechanism
α interior angle
β presses angle

Claims (7)

1. the doctor blade device (2) of a printing machine (4), it comprises: negative sense scraper (5), for striking off roller (1); With forward scraper (6), described forward scraper along the direction of rotation (5) of described roller (1) be arranged on described negative sense scraper (5) after.
2. doctor blade device according to claim 1, wherein, described negative sense scraper (5) and described forward scraper (6) fix to clamp in the clamping device common at (17).
3. doctor blade device according to claim 1, wherein, described negative sense scraper and described forward scraper are configured to two scrapers of single type jointly.
4. doctor blade device according to claim 1, wherein, described forward scraper (6) have be less than 45 ° press angle β.
5. doctor blade device according to claim 1, wherein, described forward scraper (6) has hook-type.
6. doctor blade device according to claim 1, wherein, described negative sense scraper (5) defines the apotheca (8) for coating liquid (3).
7. according to the doctor blade device described in any one in claim 1 to 6, wherein, described doctor blade device (2) is the part of anilox roll-ink mechanism (25).
CN201310616133.7A 2012-11-29 2013-11-27 The doctor blade device of printing machine Expired - Fee Related CN103847223B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012023372 2012-11-29
DE102012023372.8 2012-11-29

Publications (2)

Publication Number Publication Date
CN103847223A true CN103847223A (en) 2014-06-11
CN103847223B CN103847223B (en) 2018-06-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310616133.7A Expired - Fee Related CN103847223B (en) 2012-11-29 2013-11-27 The doctor blade device of printing machine

Country Status (2)

Country Link
CN (1) CN103847223B (en)
DE (1) DE102013018792A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113619274A (en) * 2021-08-28 2021-11-09 朱忠祥 Printing ink printing machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377110A (en) * 1943-09-15 1945-05-29 Rice Barton Corp Printing roll inking device
EP0294022A1 (en) * 1987-05-11 1988-12-07 Vickers Plc Improvements in or relating to printing
JP2002059532A (en) * 2000-08-22 2002-02-26 Dainippon Printing Co Ltd Doctor blade unit and doctor device
US6360660B1 (en) * 1998-11-25 2002-03-26 Allison Tech Sales Incorporated Doctor blade systems
CN101195297A (en) * 2006-12-05 2008-06-11 海德堡印刷机械股份公司 Method for operating an anilox printing unit
JP2009039925A (en) * 2007-08-08 2009-02-26 Dainippon Printing Co Ltd Doctor holder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320833C1 (en) 1993-06-23 1994-09-22 Roland Man Druckmasch Method and device for exchanging a doctor blade of a chamber-type doctor for rotary printing machines
DE102005061916A1 (en) 2005-12-23 2007-07-12 Koenig & Bauer Aktiengesellschaft Printing machine, has ink collecting container attached to scarper for collecting or discharging printing ink, and limiting wall attached to scraper, such that ink chamber is formed between wall and scraper
DE102007053799B4 (en) 2006-12-05 2014-12-04 Heidelberger Druckmaschinen Ag Method for operating an anilox printing unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377110A (en) * 1943-09-15 1945-05-29 Rice Barton Corp Printing roll inking device
EP0294022A1 (en) * 1987-05-11 1988-12-07 Vickers Plc Improvements in or relating to printing
US6360660B1 (en) * 1998-11-25 2002-03-26 Allison Tech Sales Incorporated Doctor blade systems
JP2002059532A (en) * 2000-08-22 2002-02-26 Dainippon Printing Co Ltd Doctor blade unit and doctor device
CN101195297A (en) * 2006-12-05 2008-06-11 海德堡印刷机械股份公司 Method for operating an anilox printing unit
JP2009039925A (en) * 2007-08-08 2009-02-26 Dainippon Printing Co Ltd Doctor holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113619274A (en) * 2021-08-28 2021-11-09 朱忠祥 Printing ink printing machine

Also Published As

Publication number Publication date
CN103847223B (en) 2018-06-12
DE102013018792A1 (en) 2014-06-05

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Granted publication date: 20180612

Termination date: 20191127