CN103847223B - The doctor blade device of printing machine - Google Patents
The doctor blade device of printing machine Download PDFInfo
- Publication number
- CN103847223B CN103847223B CN201310616133.7A CN201310616133A CN103847223B CN 103847223 B CN103847223 B CN 103847223B CN 201310616133 A CN201310616133 A CN 201310616133A CN 103847223 B CN103847223 B CN 103847223B
- Authority
- CN
- China
- Prior art keywords
- scraper
- negative sense
- roller
- 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.)
- Expired - Fee Related
Links
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
Abstract
A kind of printing machine（4）Doctor blade device（2）Including：Negative sense scraper（5）, for striking off roller（1）；With positive scraper（6）, the forward direction scraper is along the roller（1）Direction of rotation（5）It is arranged on the negative sense scraper（5）Behind.
Description
Technical field
The present invention relates to a kind of doctor blade device of printing machine, including for striking off the negative sense scraper of roller.
Background technology
A kind of doctor blade device is disclosed in 10 2,007 053 799 A1 of DE, wherein, smooth scraper is arranged on negative sense and scrapes
Flank face, the smooth scraper are not rested on roller and are equally negatively oriented.The negative sense scraper is in the first clamping device
Middle clamping, first clamping device are arranged on ink fountain.The smooth scraper clamps in the second clamping device, and described second
Clamping device is arranged on pelvic part, and the pelvic part is arranged on the lower section of the ink fountain.The smooth scraper is not rested on roller simultaneously
And for the smooth ink accumulation formed on roller.The reason of ink is accumulated be to unavoidably pass through negative sense scraper and roller it
Between leakage.
A kind of doctor blade device is also disclosed in 10 2,005 061 916 A1 of DE, in the lower section of the doctor blade device
Equipped with the ink collecting container for leakage.
In addition, 43 20 833 C1 of DE only disclose the prior art farther out and comprising chambered doctor blade, the cavate is scraped
Cutter has the thickness scraper of positive closing scraper, negative sense working scraper and similary negative sense.The thickness scraper can be temporarily pressed against
On roller, working scraper can be just replaced not need to emptying ink chamber.
Invention content
The task of the present invention is to propose another doctor blade device.
The task is solved by the doctor blade device of the present invention.The doctor blade device of printing machine according to the present invention includes：It is negative
To scraper, for striking off roller；With positive scraper, the forward direction scraper is arranged on the negative sense along the direction of rotation of the roller and scrapes
Behind knife.
According to the invention it is proposed that a kind of doctor blade device of printing machine, including：Negative sense scraper, for striking off roller；Just
To scraper, the forward direction scraper is arranged on along the direction of rotation of the roller behind the negative sense scraper, wherein, coating liquid
Storage capacity liquid level printing operation when the blade in negative sense scraper top, wherein, the negative sense scraper, which defines, to be used for
The storage room of coating liquid.
In the improvement project of doctor blade device according to the present invention, negative sense scraper is with positive scraper in a common clamping
It is fixed to clamp in device.
In another refinement, negative sense scraper is collectively configured to double scrapers of single type with positive scraper.Including being formed
Double scrapers of the scraping blade of the scraping blade of negative sense scraper and the positive scraper of formation are made of individual component.The individual component can
With the profile with fork-shaped, wherein, a yoke forms negative sense scraper and another yoke forms positive scraper.The component
Can be metal sheet parts or plastic components.The component can also be the composite material of sandwich construction mode, wherein, example
If negative sense scraper is made and positive scraper is made of plastics of sheet metal, the plastics securely connect with the sheet metal,
Such as it is bonded.
In another refinement, positive scraper has the pressing angle less than 45 °.
In another refinement, positive scraper has hook-type.
In another refinement, negative sense scraper defines the storage room for coating liquid.
In another refinement, doctor blade device is the composition part of anilox roll-ink architecture.
Description of the drawings
In other structures and functionally scheme is advantageously improved to be obtained by the explanation of following embodiment and affiliated attached drawing.
Specific embodiment
Uniquely shown in the drawings of roller 1 and for coating liquid 3 to be applied to the doctor blade device 2 on roller 1.Coating
Liquid 3 is ink or gloss varnish.Doctor blade device 2 is scraper type ink fountain and roller 1 is anilox roll.Roller 1 and doctor blade device 2 are all prints
The component part of brush machine 4.
Printing machine 4 is the offset press for having anilox roll-ink architecture 25, and doctor blade device 2 is its component part.
Doctor blade device 2 includes the forward direction of negative sense scraper 5 reversed or that thrust-type is pressed against and in the same direction or pull-type pressing
Scraper 6.Negative sense scraper 5 and positive scraper 6 be made of metal either plastics, the flexible or elasticity of flexure the piece of springing or
Item.Negative sense scraper 5 and positive scraper 6 are in measurement direction as described below at least as the work of the transmission coating liquid 3 of roller 1
Face is long like that：The measurement direction is parallelly prolonged relative to the plan of attached drawing vertically or relative to the rotation axis of roller 1
It stretches.Negative sense scraper 5 is working scraper or supply scraper and together defines storage room 8 with roller 1 and rear wall 7.In storage room 8
Storage capacity equipped with coating liquid 3, and the storage capacity forms liquid level 9, and the liquid level is scraped in printing operation in negative sense
The top of the blade 10 of knife 5.Negative sense scraper 5 supplies coating liquid 3 and herein again in printing operation from storage room 8 to roller 1
Extra coating liquid 3 is struck off from roller 1.Rear wall 7 may be located remotely from negative sense scraper 5 and be adjusted, for example swingably be supported,
So as to for example in order to which the purpose of maintenance can reduce liquid level 9 until 10 lower section of blade.
Positive scraper 6 is to strike off scraper or smooth scraper and the generation for preventing situations below：Coating liquid 3 in roller
The leakage passed through between 1 and setting negative sense scraper 5 on it being placed in the region outside doctor blade device 2 in roller 1 on roller
Form the accumulation of damage printing quality.Positive scraper 6 has first at 11 and second 12, between them with interior angle.It is interior
Angle α for acute angle and in its vertex be equipped with crooked position 13, by the crooked position make first while 11 with second while 12 phases
It connects.Make the positive scraper that there is hook shape in section by the crimp of the formation crooked position 13 of positive scraper 6.The
Two sides 12 be less than 45 °, preferably smaller than 30 ° and be, for example, less than 15 ° acute angle be pressed against angle beta in the case of be pressed against on roller 1.It is pressed against angle
β be located at the second side 12 and the blade 14 across positive scraper 6 and the mutual tangent point of the peripheral surface of roller 1 imaginary tangent line it
Between.Positive scraper 6 is with the seamed edge of blade 14 or is pressed against radius in the peripheral surface of roller 1.The tool of namely positive scraper 6
The end for having blade 14 is not more than tangentially the peripheral surface of roller 1.Thus avoid the ink heap in 20 perimeter of medial compartment
Product.Negative sense scraper 5 and positive scraper 6 rest against respectively in one of quadrant of the two of roller 1 lower parts, i.e. in third or fourth quadrant
On the roller.
In printing operation, roller 1 is rotated along direction of rotation 15.It is observed along direction of rotation 15, positive scraper 6 is arranged on negative sense
Behind scraper 5 and set before the roller contact point 16 shown in symbol in the accompanying drawings.In roller contact point 16, another roller
It for good and all or periodically rests on roller 1, and coating liquid is transmitted to from roller 1 on another roller.Another roller from
Roller 1 receives coating liquid 3 and by the coating liquid of reception directly or through one or more intermediate calender rolls or centre
Roller is transported on printable fabric indirectly.Another roller is preferably ink applying roller and print is rested in printing operation
On plate cylinder.
Negative sense scraper 5 and the positive scraper 6 in immediately thereafter face are clamped to jointly in same clamping device 17.It clamps
Device 17 has the first clamp 18 and the second clamp 19, and negative sense scraper 5 and positive scraper 6 are jointly fixed to clamp described the
Between one clamp and second clamp.When fixing to clamp, described two clamps 17, at least one of 18 can be relative to
Another clamp movement.Positive scraper 6 can with its first side 11 according to the first variant scheme directly or according to the second modification
Scheme is rested on by middle layer on negative sense scraper 5 indirectly.Middle layer can be film or thin slice.There are middle layers
In situation, the middle layer forms the group of a three parts with negative sense scraper 5 inside clamping device 17 together with positive scraper 6
Part.In the case where lacking middle layer, negative sense scraper 5 and positive scraper 6 --- as shown in FIG. --- the first clamp 18 with
Formation one is two-part between second clamp 19 stacks.Negative sense scraper 5 is made to exist by the compression between roller 1 and negative sense scraper 5
It is placed in the region outside clamping device 17 far from 6 ground of forward direction scraper, with the direction increasing relative to positive scraper 6 towards blade 10
Long spacing is bent.
Negative sense scraper 5, positive scraper 6 and roller 1 together define the medial compartment 20 with arrow pointed shape.Medial compartment 20
Volume should keep as small as possible, for this purpose, the crooked position 13 of positive scraper 6 should be placed in the knife as close to negative sense scraper 5
Sword 10.In order to realize the situation, the radius of curvature of crooked position 13 should keep as small as possible in crimp.In the following manner
Obtain arrow pointed shape：The first wedge shape space 21 is equipped between the first side 11 of negative sense scraper 5 and positive scraper 6, and
The second wedge shape space 22 is equipped between the second side 12 of roller 1 and positive scraper, wherein, the first wedge shape space 21 and the second wedge shape
Converge or be transitioned into the third wedge shape space 23 between negative sense scraper 5 and roller 1 in space 22.Positive scraper 6 away from roller 1 from
It is obliquely upwardly extended since blade 14 against gravity direction by face 24.The scope of freedom 24 is located on the second side 12 and positioned at hook
In the inside of shape.
The data included in the description of the drawings also fit scraper geometry and scraper function in the sense that conversion
For the variant scheme of the double scrapers of single type being not shown in figure.
Reference numerals list
1 roller
2 doctor blade devices
3 coating liquids
4 printing machines
5 negative sense scrapers
6 positive scrapers
7 rear walls
8 storage rooms
9 liquid levels
10 blades
11 first sides
12 second sides
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 third wedge shape spaces
24 faces
25 anilox rolls-ink architecture
α interior angles
β is pressed against angle
Claims (6)
1. a kind of doctor blade device (2) of printing machine (4), including：Negative sense scraper (5), for striking off roller (1)；With positive scraper
(6), the positive scraper is arranged on along the direction of rotation (15) of the roller (1) behind the negative sense scraper (5), wherein,
The top of blade (10) in negative sense scraper (5), feature during liquid level (9) printing operation of the storage capacity of coating liquid (3)
It is, the negative sense scraper (5) defines the storage room (8) for coating liquid (3).
2. doctor blade device according to claim 1, wherein, the negative sense scraper (5) and described positive scraper (6) geometrical clamp
Tightly in a common clamping device (17).
3. doctor blade device according to claim 1, wherein, the negative sense scraper and the positive scraper are collectively configured to one
Double scrapers of part formula.
4. doctor blade device according to claim 1, wherein, the forward direction scraper (6) has the pressing angle beta less than 45 °.
5. doctor blade device according to claim 1, wherein, the forward direction scraper (6) has hook-type.
6. doctor blade device according to any one of claim 1 to 5, wherein, the doctor blade device (2) is anilox roll-oil
The component part of black mechanism (25).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012023372.8 | 2012-11-29 | ||
| DE102012023372 | 2012-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103847223A CN103847223A (en) | 2014-06-11 |
| CN103847223B true CN103847223B (en) | 2018-06-12 |
Family
ID=50726109
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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619274A (en) * | 2021-08-28 | 2021-11-09 | 朱忠祥 | Printing ink printing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2377110A (en) * | 1943-09-15 | 1945-05-29 | Rice Barton Corp | Printing roll inking 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8711096D0 (en) * | 1987-05-11 | 1987-06-17 | Vickers Plc | Printing |
| 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 |
| JP4626905B2 (en) * | 2000-08-22 | 2011-02-09 | 大日本印刷株式会社 | Doctor blade unit and doctor device |
| 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 |
| JP5076722B2 (en) * | 2007-08-08 | 2012-11-21 | 大日本印刷株式会社 | Doctor holder |
-
2013
- 2013-11-08 DE DE201310018792 patent/DE102013018792A1/en not_active Withdrawn
- 2013-11-27 CN CN201310616133.7A patent/CN103847223B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2377110A (en) * | 1943-09-15 | 1945-05-29 | Rice Barton Corp | Printing roll inking 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103847223A (en) | 2014-06-11 |
| DE102013018792A1 (en) | 2014-06-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20191127 |