CN1157777A - Sheet guide for sheet temporary on cylinder - Google Patents
Sheet guide for sheet temporary on cylinder Download PDFInfo
- Publication number
- CN1157777A CN1157777A CN 96123244 CN96123244A CN1157777A CN 1157777 A CN1157777 A CN 1157777A CN 96123244 CN96123244 CN 96123244 CN 96123244 A CN96123244 A CN 96123244A CN 1157777 A CN1157777 A CN 1157777A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- printed sheet
- printed
- guiding sheets
- sheet
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F25/00—Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes
Landscapes
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
The invention relates to a sheet guiding device of a sheet temporarily storing cylinder of a printing machine that is for single and double side printing. Three sheet guiding cylinders are arranged between the printing machine units. The sheet guiding device of the invention can guarantee the accurate placement of the paper at the back porch area on the sheet temporarily storing cylinder during double sides printing process without changing the structure of the sheet temporarily storing cylinder. So, an air injection device is arranged along the width direction of the sheet temporarily storing cylinder, and between the tangent point t<3,4> of the guiding cylinder / the temporarily storing cylinder and the tangent point t<4,5> of the temporarily storing cylinder / the rotating cylinder. A flexible guiding strip which can press the back porch area of the sheet tightly on cylinder shield is arranged along the width of the rotating cylinder.
Description
The present invention relates to the device for guiding sheets on a kind of temporary cylinder of printer.This printer can be chosen positive printing or just/anti-printed on both sides mode wantonly, and between its printing unit three guiding sheets cylinders of assembling.
In these three guiding sheets cylinders, the temporary cylinder of middle printed sheet is double diameter cylinder, just is being used for/anti-printed on both sides.The 3rd the guiding sheets cylinder of installing on the printed sheet service direction is real printed sheet upset cylinder, and it has one or more sets grippers systems.
Just/must guarantee in the anti-printed on both sides, it can guided exactly and is locating before the printed sheet upset and during the printed sheet upset, this be because: after printed sheet upset is finished, the back edge of printed sheet becomes its forward position, if printed sheet can not overturn exactly in chromatography, the chromatography deviation will occur, so that spoilage occur.
For fear of alignment error, people proposed a lot of measures, and to make the temporary cylinder of printed sheet can guide printed sheet, this point exactly be the precondition that printed sheet upset cylinder is accurately accepted edge behind the printed sheet.
DE-PS2354418 has represented the printed sheet take-up device on the temporary cylinder of just a kind of printed sheet of/anti-printed on both sides.According to this patent documentation, on its temporary cylinder, set up gas channel with the form of fluting.Air is blown into this gas channel against the cylinder hand of rotation.Wherein, the transversal surface of gas channel broadens gradually against the hand of rotation of the temporary cylinder of printed sheet.The air-flow that constitutes in the gas channel is pulled in printed sheet on the temporary cylinder surface, and printed sheet is tightened.
Its shortcoming is: printed sheet be not its sense of motion laterally, and only be on its circumferencial direction, to tighten.
By the temporary cylinder of a kind of as can be known printed sheet of DE-PS2452096 patent documentation, thereafter adjustable along being provided with in the zone, affact the rotating air suction device on the printed sheet from below.The tension of printed sheet is to finish along the retrograde rotation of temporary cylinder hand of rotation by the rotating air suction device.Install with this, printed sheet not only can be at its circumferencial direction, and laterally also being strained in its motion.
Shortcoming herein is: because the change of printed sheet length, thereby one group of rotating air suction device must be adjusted in the length range that adapts to new printed sheet.Cause loaded down with trivial details temporary cylinder adjusting work thus, must just can accomplish by a kind of setting device.
In addition, owing to equipped a fairly large number of rotating air suction device and control setup on this device, and need expend more material, so cost an arm and a leg.
These two kinds of solutions have common shortcoming, that is: with the cylinders of printing press contrast of simple positive printing, make it not only be suitable for positive printing but also just can be used for/anti-printed on both sides, just must keep in cylinder to printed sheet and make large-scale structural modification.
Based on the above-mentioned defective that exists in the prior art, the objective of the invention is to: the device for guiding sheets that proposes a kind of temporary cylinder, guarantee just/operation scheme of anti-printed on both sides under printed sheet make exactly thereafter along being placed on the temporary cylinder, and needn't make structural change to the temporary cylinder of printed sheet simultaneously.
According to the present invention, this task is solved by claim 1 and 2 described features.
The advantage of this guiding device is: the back of printed sheet that needs upset accurately placed along the zone, and needn't a covering device be installed at temporary cylinder self.Like this, just compare and to have made structural change with the machine that only is used for positive printing.
Machine is just being repacked into/anti-perfecting press by the front printer, and do different length and width material just/during anti-printed on both sides, saved the adjusting work of effort.
Compare the motion control of on the temporary cylinder of printed sheet, having saved air-breathing conveying, air-breathing control and aspirator system with known devices.
Except the cylinder space, the osed top jacket has guaranteed that printed sheet can be placed on the temporary cylinder open and flatly haply.By the airstream eddy current that this intimate osed top jacket can avoid open temporary cylinder to produce equally, this eddy current can cause the instability of printed sheet motion.
This device for guiding sheets is by an air jet system, and perhaps by a wheel machine guidance unit (being placed in temporary cylinder top), and the guide ribs of assembling on the upset cylinder is formed.Thus, this invention has proposed the combination of blowning installation/guide ribs or wheel machine guidance unit/guide ribs.
Although this class blowning installation or wheeled devices are finished other task or also once had been used to support the guiding of printed sheet during other local use, but also Nobody Knows for a long time, guide ribs on this device and the upset cylinder is combined, be assemblied in the temporary cylinder of printed sheet top, the back edge that can be used for straining printed sheet thus effectively.
By an embodiment the present invention is done more detailed explanation below.Accompanying drawing is depicted as:
Fig. 1: can reequip just/inverted box of anti-perfecting press, above the temporary cylinder of printed sheet, a pneumatic guiding device is arranged.
Fig. 2: as Fig. 1, but what install above the temporary cylinder of printed sheet is a kind of mechanical type guidance unit.
Fig. 3: the top view of jacket posterior region, direction of observation is shown in the A among Fig. 1.
Fig. 1 and Fig. 2 showed a kind of reequip just/printed sheet inverted box 1 on the anti-perfecting press.Just/anti-perfecting press can select positive printing or just/two kinds of operation scheme of anti-printed on both sides.This type of printer is widely known by the people, and is not theme of the present invention.
Schematic representations by Fig. 1 and Fig. 2 can be recognized: an impression cylinder 2, guiding sheets cylinder 3, a temporary cylinder 4 of printed sheet and a printed sheet upset cylinder 5 are arranged.
On printed sheet upset cylinder 5, first cover and the second cover grippers system 6,7 have been equipped with method in the known manner.The first cover grippers system 6 only just is being in/plays a role under the operation scheme of anti-printed on both sides.7 of the second cover grippers systems all work when being in positive printing and just/two kinds of operation scheme of anti-printed on both sides.
Yet on upset cylinder 5, if do not use two cover grippers systems 6,7, mono-one overlaps jaw type or convertible grippers is used for positive just reaching/anti-printed on both sides and only install, and also can adopt the present invention.
On the Width of upset cylinder 5, a plurality of narrow type guide ribs 8 that exceed its circumference have been installed.Guide ribs 8 is by a kind of elastomeric material, as: soft rubber is formed.According to the hand of rotation (representing with the hand of rotation arrow in Fig. 1 and Fig. 2) of cylinder, guide ribs 8 is installed on before the first cover grippers system 6.In addition, each guide ribs 8 can be installed axially displacedly.
On the circumference of the temporary cylinder 4 of printed sheet jacket 10 (see figure 3)s are housed.The front portion of jacket 10 is osed tops, and at its rear portion, just/maximum and minimum printed sheet length L max that anti-printed on both sides can be printed, gap 11 appears in the Lmin zone.Thus, between Lmax and Lmin, constitute the structure of the jacket 10 of pectination.This gap for just/it is bitten at printed sheet 12 rear portions by grippers 6 during anti-printed on both sides and is absolutely necessary.
The folder formula grippers 23 of also having showed the temporary cylinder 4 of printed sheet among the figure.On temporary cylinder 4, be provided with a cover air jet system with the form of jet case 9, its appearance profile and temporary cylinder 4 adapt, and are provided with pointing needle to keeping in the pore 13 of cylinder 4.The effect coverage of jet case 9 is from the point of contact t of the temporary cylinder 3,4 of guiding sheets cylinder/printed sheet
34Point of contact t to the temporary cylinder of printed sheet/ upset cylinder 4,5
45 Pore 13 can make air-flow perpendicular to or jet against the sense of motion of printed sheet 12, or adopt array mode jet to printed sheet 12.In addition, some pores in the pore 13 can be positioned to and make its Jet Stream 14 from inside to outside point to printed sheet 12.
Herein, the setting of pore 13 is: Jet Stream 14 does not affact on the gap 11 of jacket 10, and acts on all the time on the entity between the gap 11 of jacket 10.
According to another program (see figure 2), above the temporary cylinder 4 of printed sheet, do not use jet case 9, and a cover mechanical type guidance unit 16-22 is set.Mechanical type guidance unit 16-22 forms like this: across the temporary cylinder 4 of printed sheet a rotating crossbeam 16 is installed, is installed at the Width of the temporary cylinder 4 of crossbeam 16 upper edge printed sheets and a plurality ofly rotatingly take turns 18, be fixed on the lever 17 and take turns 18.Also fixing turbine/lever 19 on crossbeam 16, having a cam 20 at the other end of turbine/lever 19, cam 20 is touched with control cam 22 mutually by spring 21.Control cam 22 fixedly is assemblied on the temporary cylinder 4 of printed sheet.The installation of wheel 18 is ahead of point of contact t
45(promptly temporary cylinder/upset cylinder 4,5).
Just/mode of operation of guiding device of the present invention is as follows during anti-printed on both sides:
The printed sheet 12 of printing passes to guiding sheets cylinder 3 by impression cylinder 2 on impression cylinder 2, and printed sheet 12 is flowed to the folder formula grippers 23 of the temporary cylinder 4 of printed sheet by guide roller 3.From then on, the forward position of printed sheet 12 moves to point of contact t
45The place ahead, catch edge thereafter until printed sheet 12 by the first cover grippers 6 of upset cylinder 5, and give the second cover grippers system 7 it, from then on again it is passed to those follow-up cylinders that do not provide in the drawings.
Make the first cover grippers system 6 accurately receive printed sheet 12, just must accomplish: printed sheet 12 must be placed on the jacket 10 of the temporary cylinder 4 of printed sheet open and flatly.According to example shown in Figure 1, above the temporary cylinder 4 of printed sheet, the Jet Stream 14 that the air operated jet case of being sent here by splice sleeve 15 9 produces smooths printed sheet 12 to the right and to its outside by pore 13, and printed sheet is placed on the jacket 10 open and flatly.
Point of contact t in Jet Stream 14 inefficacies
4,5In the zone, printed sheet 12 is compressed to jacket 10 by guide ribs 9.By guide ribs 8, can be fixed up by the printed sheet position that air jet system 9 is realized.Can avoid the slip of printed sheet 12 in addition.
According to embodiment shown in Figure 2, take turns 18 printed sheets 12 by the part one of mechanical guiding unit 16-22 and be pressed on the jacket 10.Wheel 18 is by the passage on the temporary cylinder 4 of printed sheet, and by control cam 22, cam 20, turbine/lever 19 rotates crossbeam 16, and makes wheel 18 have rhythm and pace of moving things ground to lift from jacket 10.
At point of contact t
4,5The zone in, the guiding of printed sheet 12 is just finished under guide ribs 8 is supported as embodiment illustrated in fig. 1.
The mode of action of guiding device mainly be by just/mode of operation of anti-printed on both sides illustrates.In order to ensure flutter phenomenon not occurring in guiding printed sheet 12 processes, air jet system 9 or take turns 18 pairs of positive printings and also be suitable for.8 pairs of positive printings of guide ribs are nonsensical, can place it in printed sheet breadth zone in addition.
The related symbol table:
1 inverted box
2 impression cylinders
3 guiding sheets cylinders
4 printed sheets are kept in cylinder
5 printed sheets upset cylinder
6 first cover grippers systems
7 second cover grippers systems
8 guide ribs
9 jet cases, air jet system
10 jackets
11 gaps
12 printed sheets
13 pores
14 Jet Streams
15 splice sleeves
16 crossbeams
17 levers
18 take turns
19 turbine/levers
20 cams
21 springs
22 control cams
23 folder formula gripperses
16-22 mechanical type guidance unit
The minimum printed sheet length of Lmin
The maximum printed sheet length of Lmax
t
3,4Guiding sheets cylinder/printed sheet is kept in the cylinder point of contact
t
4,5Printed sheet is kept in cylinder/printed sheet upset cylinder point of contact
Claims (11)
1. can choose the device for guiding sheets of the temporary cylinder of printed sheet of the printer that carries out front or just/anti-printed on both sides wantonly, this printer has been equipped three guiding sheets cylinders between its printing unit, wherein, middle guiding sheets cylinder possesses double diameter and uses as the temporary cylinder of printed sheet, just carrying out at the printed sheet of placing on the temporary cylinder of printed sheet/during anti-printed on both sides, catch edge behind the printed sheet by the grippers of upset on the cylinder, and will keep in the printed sheet posterior region that the to overturn tension of cylinder guiding with pneumatic-mechanical system, and in bootup process, do not tremble, it is characterized by: in the width top of the temporary cylinder (4) of printed sheet, at guiding sheets cylinder and temporary cylinder (3,4) point of contact (t3,4) with temporary cylinder/upset cylinder (4,5) in the zone between the point of contact (t4,5), be provided with an air jet system (9), its outline and printed sheet are kept in cylinder (4) and are complementary, and generation Jet Stream (14) sprays to printed sheet (12); On upset cylinder (5), be placed with a plurality of flexible guide bars (8) along its Width, they are pressed on printed sheet (12) on the jacket (10) in posterior region.
2. can choose the device for guiding sheets of the temporary cylinder of printed sheet of the printer that carries out front or just/anti-printed on both sides wantonly, this printer has been equipped three guiding sheets cylinders between its printing unit, wherein, middle guiding sheets cylinder possesses double diameter and uses as the temporary cylinder of printed sheet, on the temporary cylinder of printed sheet, the printed sheet of placing just carrying out/during anti-printed on both sides, catch edge behind the printed sheet by the grippers of upset on the cylinder, and strain in posterior region with the printed sheet that will overturn that pneumatic-mechanical system will be kept in cylinder guiding, and in bootup process, do not tremble, it is characterized by: in the width top of the temporary cylinder (4) of printed sheet, be ahead of the point of contact t4 of temporary cylinder (4) of printed sheet and printed sheet upset cylinder (5), 5 are provided with a cover mechanical type guidance unit (16-22), it is pressed on printed sheet (12) on the jacket (10), and being placed with a plurality of flexible guide bars (8) at its Width of upset cylinder (5) upper edge, they are pressed on printed sheet (12) on the jacket (10) in posterior region.
3. by the device for guiding sheets of claim 1 and 2, it is characterized by: guide ribs (8) exceeds the circumference of upset cylinder (5).
4. by claim 1,2 and 3 device for guiding sheets, it is characterized by: guide ribs (8) is made of soft rubber.
5. by claim 1,2 and 3 device for guiding sheets, it is characterized by: a plurality of guide ribs (8) are mounted to and can be shifted vertically.
6. by the device for guiding sheets of claim 1, it is characterized by: air jet system (9) has the pore (13) that points to the temporary cylinder (4) of printed sheet as jet case (9).
7. by claim 1 and 6 device for guiding sheets, it is characterized by: Jet Stream (14) by pore (13) vertical or reverse in the printed sheet sense of motion towards printed sheet (12) jet.
8. by the device for guiding sheets of claim 1 and 6, it is characterized by: Jet Stream (14) is from inside to outside jet by pore (13).
9. press the device for guiding sheets of claim 1, it is characterized by: mechanical type guidance unit (16-22) by rotating crossbeam (16), be contained in the wheel (18) on the lever (17), and control cam (22) composition of the turbine/lever (19), a cam (20) and the rotation that load by means of spring (21).
10. by the device for guiding sheets of claim 2 and 9, it is characterized by: wheel (18) and turbine/lever (19) thereof are installed on the crossbeam (16), can be axially displaced.
11. by claim 2,9 and 10 device for guiding sheets, it is characterized by: wheel (18) can the rhythm and pace of moving things is arranged lift from printed sheet (12) controllably.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19547580.1 | 1995-12-20 | ||
| DE1995147580 DE19547580C2 (en) | 1995-12-20 | 1995-12-20 | Guide device for sheets on storage drums |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1157777A true CN1157777A (en) | 1997-08-27 |
| CN1078848C CN1078848C (en) | 2002-02-06 |
Family
ID=7780654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96123244A Expired - Fee Related CN1078848C (en) | 1995-12-20 | 1996-12-19 | Sheet guide for sheet temporary on cylinder |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1078848C (en) |
| DE (1) | DE19547580C2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434271C (en) * | 2001-07-23 | 2008-11-19 | 三菱重工业株式会社 | Single-sheet conveying printing machine |
| CN1980793B (en) * | 2004-04-20 | 2010-05-05 | 高斯国际美洲公司 | Cycling offset press |
| CN110790059A (en) * | 2019-10-05 | 2020-02-14 | 单素贞 | Adjustable cloth feeding brush device for spinning and using method |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19905177B4 (en) * | 1999-02-09 | 2006-05-04 | Koenig & Bauer Ag | Guide element on turning drums in printing presses |
| DE10011436A1 (en) | 1999-05-27 | 2000-11-30 | Heidelberger Druckmasch Ag | Device to hold sheet on cylinder for rotary sheet feed letterpress printing machine; has holder roller, blow arrangement, guide unit or combination to hold sheet in working area behind lifting device |
| DE10102733B4 (en) * | 2000-02-18 | 2010-01-07 | Heidelberger Druckmaschinen Ag | Device for transferring a bow |
| JP2002011847A (en) * | 2000-06-29 | 2002-01-15 | Komori Corp | Sheet-fed rotary press with reversing mechanism |
| DE10310690A1 (en) | 2002-04-12 | 2003-10-30 | Heidelberger Druckmasch Ag | Sheet guide in sheet-processing machine especially rotary printer has pick-up pieces, free air jet nozzles and air cushion |
| DE102005050070A1 (en) * | 2005-10-19 | 2007-04-26 | Koenig & Bauer Ag | Sheet guiding device of sheet-fed rotary printing press, comprises layer of highly elastic material on surface of drum caps |
| DE102007003465A1 (en) * | 2007-01-24 | 2008-07-31 | Man Roland Druckmaschinen Ag | Device for guiding sheet material in a processing machine |
| DE102007031050A1 (en) * | 2007-07-04 | 2009-01-08 | Manroland Ag | Sheet guiding device for sheet processing printing machine, has controlling system assigned to sheet guiding cylinder and exhibiting control elements that produce linear control field transverse to sheet transporting unit |
| DE102012209580B4 (en) | 2011-06-22 | 2023-11-30 | Koenig & Bauer Ag | Turning device for a sheet processing machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2354418C3 (en) * | 1973-10-31 | 1980-04-17 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Sheet transfer drum for printing machines |
| GB2190364A (en) * | 1986-05-14 | 1987-11-18 | Wallace Knight Ltd | An assembly for preventing the detachment of a substrate from a revolving cylinder |
| DE3730386C1 (en) * | 1987-09-10 | 1989-04-13 | Roland Man Druckmasch | Device for conveying sheets through the printing zone of the blanket cylinder and impression cylinder of a sheet-fed rotary printing machine |
| DE4030070C2 (en) * | 1990-09-22 | 1997-04-17 | Kba Planeta Ag | Sheet storage unit on rotary printing machines |
| DE4217813C2 (en) * | 1992-05-29 | 1996-06-05 | Heidelberger Druckmasch Ag | Device for achieving a flat installation of printing materials |
| DE4410189A1 (en) * | 1994-03-24 | 1995-09-28 | Heidelberger Druckmasch Ag | Guide device for moving sheet material in printing machines |
-
1995
- 1995-12-20 DE DE1995147580 patent/DE19547580C2/en not_active Expired - Fee Related
-
1996
- 1996-12-19 CN CN96123244A patent/CN1078848C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434271C (en) * | 2001-07-23 | 2008-11-19 | 三菱重工业株式会社 | Single-sheet conveying printing machine |
| CN1980793B (en) * | 2004-04-20 | 2010-05-05 | 高斯国际美洲公司 | Cycling offset press |
| CN110790059A (en) * | 2019-10-05 | 2020-02-14 | 单素贞 | Adjustable cloth feeding brush device for spinning and using method |
| CN110790059B (en) * | 2019-10-05 | 2020-10-16 | 绍兴柯桥友和纺织品有限公司 | Adjustable cloth feeding brush device for spinning and using method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19547580C2 (en) | 1999-07-29 |
| DE19547580A1 (en) | 1997-06-26 |
| CN1078848C (en) | 2002-02-06 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |