CN102189749B - Device for turning pages during period of transporting page to pass through printer - Google Patents
Device for turning pages during period of transporting page to pass through printer Download PDFInfo
- Publication number
- CN102189749B CN102189749B CN201010622051.XA CN201010622051A CN102189749B CN 102189749 B CN102189749 B CN 102189749B CN 201010622051 A CN201010622051 A CN 201010622051A CN 102189749 B CN102189749 B CN 102189749B
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- CN
- China
- Prior art keywords
- page
- cylinder
- gripper
- edge
- gripper system
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/10—Combinations of transfer drums and grippers
- B41F21/106—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine
- B41F21/108—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine with pneumatic means
Abstract
The invention relates to a device for turning pages during a period of transporting pages to pass through a printer, comprising a first transfer tube (14) comprising gripper systems (19, 20, 23, 24) for holding an edge of the page (22) moving forwards and backwards; a second transfer tube (15) comprising a gripper system (21) for bearing and receiving an edge of the page (22) moving backwards on the first transfer tube (14); devices (38, 45-48) for opening the grippers of the gripper systems (19, 20) on the edge of the page (22) moving forwards; at least one driver for leading the transfer tubes (14, 15) to be synchronously rotated in surrounding the parallel axis (40), wherein the opening time points of the grippers of the gripper systems (19, 20) on the edge of the page (22) moving forwards can be adjusted according to the flexural rigidity of the page (22).
Description
Technical field
The present invention relates to a kind of equipment for making page overturn during being conveyed through printing machine.
Background technology
In order to the manufacturing cost making multicolour sheet-fed offset press keep low, printing mechanism is configured to only for printing in the one side of page, and printing mechanism can manufacture by high repetitive rate thus.If on the sheet-fed press of printing mechanism with arranged in series will on two sides printed pages, between the last printing mechanism for printing front and the back to back printing mechanism for printed back, be provided with page turning device.Traditional turning device by described printing mechanism impression cylinder between one transmit cylinder, a storage barrel and one upset cylinder form.Transmission cylinder has the gripper system for keeping page leading edge.Storage barrel has the double large diameter of impression cylinder and has two for keeping the gripper system of page leading edge and two for keeping page antemarginal drawing-in type gripper system.Upset cylinder has jaw type gripper system, for remain on storage barrel after the page edge of advancing.The cylinder of all guiding pages is such as synchronously driven by revolution by gear drive.
The gripper system of storage barrel and upset cylinder is made up of the single gripper of arranging along straight gripper closed line respectively.Gripper closed line is parallel to the rotation of storage barrel or upset cylinder respectively.From storage barrel and upset cylinder axially, upset cylinder and the gripper closed line of storage barrel form a common tangent line when page shift, through the center line of rotation through the extension of this tangent line.
In order to overturn, page is transferred to the gripper system for page leading edge of storage barrel by the gripper system transmitting cylinder.During storage barrel rotates, page back edge is stored the drawing-in type gripper system of the attaching troops to a unit maintenance of cylinder.Page is passed through on tangent line side by the leading edge gripper system of storage barrel.When the back edge of page reaches this tangent line, proceed to the transfer of the jaw type gripper overturning cylinder.When cylinder continues revolution, page is peeled off by the side face from storage barrel, and at this moment the swabbing action of drawing-in type gripper stops.When the leading edge gripper system of storage barrel described when predetermined corner is opened, the freely stage of going at express speed of page starts.The jaw type gripper that page is only reversed cylinder on a page edge keeps, until page is transmitted to the gripper system of the impression cylinder in downstream.
Page has the speed different from the new back edge of freely going at express speed when departing from storage barrel on the edge grasped by jaw type gripper.Before leaving storage barrel, following page back edge is moved with the path velocity of storage barrel.Then the antemarginal speed in this future is reduced to zero.Then this antemarginal direction of motion changes to from zero the path velocity produced by the rotation of the jaw type gripper of upset cylinder.
Based on velocity variations, page departs from its desirable track due to dynamic power effect and other external disturbance power.Be tending towards impacting ripple in the page of the free leading of rear edge and clashed into by the component of impact effect and storage barrel and director element, this causes less desirable print result.
Leading edge gripper and the suction gripper of described storage barrel are adjusted in the length of described page to be conveyed in a circumferential direction toward each other.The opening of leading edge gripper of described storage barrel utilizes the control cam be fixed in frame to realize.Described control cam is arranged according to described page length in a circumferential direction.The page of equal length and its thickness or its bending rigidity are independently discharged by from described leading edge gripper all the time on the same position of rotation of described storage barrel.
Summary of the invention
Task of the present invention is, provides a kind of equipment for making page overturn during being conveyed through printing machine, and it realizes better print result by improving page guiding.
Described task is solved by a kind of equipment of feature of the present invention.Favourable configuration is drawn by dependent claims respectively.
According to the present invention, proposing a kind of equipment for making page overturn during being conveyed through printing machine, having: first transmits cylinder, this first transmit cylinder have for keep described page front advance and after the gripper system at edge of advancing; Second transmits cylinder, this second transmit cylinder have for accept described page described first transmit on cylinder after the gripper system at edge of advancing; For making the device opened in the gripper of the edge of front advancing transmitting cylinder described first of gripper system; At least one is for making described transmission cylinder around the driver of its parallel axis synchronous revolving.The present invention proposes, can regulating according to the bending rigidity of described page at the described first opening time point transmitting the gripper in the edge of front advancing of cylinder of described gripper system, wherein, obtain the different anglec of rotation α of described device when the page that bending rigidity is different, described anglec of rotation α is adjusted to when rigidity page and is less than when the page that rigidity is less.
Advantageously, arrange a control cam for opening the gripper in the edge of front advancing transmitting cylinder described first of described gripper system, the axis that this control cam can transmit cylinder around described first is conditioned.
Advantageously, described control cam is fixed on the adjusting gear of an adjusting transmission device.
Advantageously, a motor be connected with control device acts on described adjusting transmission device.
According to the present invention, in a kind of cylinder of turning device, also regulate according to the bending rigidity of page to be conveyed and/or grammes per square metre except page length at the opening time point of the grippers of the edge of front advancing.The page that bending rigidity is larger is carried on cylinder on the angle range that the page less than bending rigidity is short.By the present invention, the free flight stage of the page put upside down adapts to bending rigidity, and described page can not or be contacted with machine part hardly.
Accompanying drawing explanation
Describe the present invention by embodiment below, accompanying drawing represents:
The Liang Ge printing mechanism of Fig. 1 sheet-fed press and a turning device,
Fig. 2 is the device of the opening time point of leading edge grippers for changing storage barrel.
Detailed description of the invention
Fig. 1 represents the Liang Ge printing mechanism 1,2 of sheet-fed press, and each printing mechanism respectively has the wetting mechanism of an inking mechanism 3,4,5,6, plate cylinder, 7,8, transfer cylinder 9,10 and one impression cylinders 11,12.In printing mechanism 1, have a turning device between 2, this turning device has one and transmits cylinder 13, storage barrel 14 and a upset cylinder 15.All cylinders and cylinder are coupled with a gear train and turn round in the direction of the arrow.Impression cylinder 11,12, transmits cylinder 13, and storage barrel 14 and upset cylinder 15 have gripper system 16-21, for keeping page 22 on the page edge of front advancing.Storage barrel 14 additionally has drawing-in type gripper system 23,24, for keep page 22 after the page edge of advancing.Page 22 transport path between storage barrel 14 and upset cylinder 15 is provided with pneumatic page guiding device 25-27, discharges blows air 28 and input withdrawing air 29 by these page guiding devices.Drawing-in type gripper system 23,24 is fed by the pneumatic swivel joint 30 on the axle journal 31 of storage barrel 14.The suction channel 32 leading to the pumping surfaces of sucktion fan 33 is drawn by swivel joint 30.This pumping surfaces is connected with a bypass air valve 34 again, and this valve can be controlled by a motor 35.The position of rotation of storage barrel 14 is detected by the corner transmitter 36 transmitted on cylinder 13.Corner transmitter 36, motor 35 and blower fan 33 are connected with control device 37.
The gripper that Fig. 2 is shown specifically the gripper system 19,20 of storage barrel 14 is how adjustable what how to open be with open angle α.In order to make the gripper of gripper system 19,20 open, arrange one and control cam 38, this control cam is fixed on adjusting gear 39.This adjusting gear 39 is arranged to rotate around the rotation 40 of described storage barrel 14.A pinion 41 be coupled with a governor motor 42 is engaged in the toothing of described adjusting gear 39.This motor 42 is connected with described control device 37.
The gripper of described gripper system 19,20 is sat respectively and is placed on a gripper bite shaft 43,44, and described gripper bite shaft can be supported around one respectively with being fixed on axis oscillating on cylinder.These gripper bite shafts 43,44 are connected with roller lever 45,46, and roller 47,48 is bearing on the end of described roller lever, and these rollers coordinate with described control cam 38 during described storage barrel 14 turns round.
Before process print order, in control device 37, input spread length and the thickness of page 22.Calculate by the data of the described length of page 22 and described thickness the conditioning signal being used for motor 42 in control device 37.By means of described motor 42 and described gear drive 41,39, described control cam 38 is placed in a position of rotation α relative to horizontal line 49, described position of rotation is drawn by the described length of described page 22 and thickness or bending rigidity.Described control cam 38 is fixed in described position of rotation by means of brake 50.Brake 50 with friction can by means of described control device 37 remote adjustment.Described angle [alpha] characterizes the position of rotation of described storage barrel 14, and in this position of rotation, the leading edge gripper of described gripper system 19 or 20 is opened.When bending rigidity different page 22 obtain controlling the different anglec of rotation α of cam 38.Described angle [alpha] be adjusted to when rigidity page 22 be less than when rigidity less page 22.
When the page 22 of carrying bending strength less, large angle [alpha]
1be favourable, because unclamping too early will make the violent upsetting of described page 22 and uncontrolled Ground shock waves efferent echo, they contact causing with the less desirable of machine part.Thin, that bending rigidity is less page 22 is placed around the outline of described storage barrel 14 when not having large oppressive force.Can stand described page 22 at this and contact described storage barrel 14 in the moment of its conversion direction, wherein, the impulsive force of appearance is not enough to the backside damage making described page 22.
Little angle [alpha] is adjusted when carrying the cardboard page of rigidity
2.The release of described leading edge is carried out early than the direction conversion of page 22 significantly.When rigidity page 22 is only moved slippingly on trailing edge, this rigidity page can not impact efferent echo.In the page 22 phase slippage straight of the rigidity free space below described upset cylinder 15 and described storage barrel 14 and on the component not encountering described printing mechanism or do not rub on described storage barrel 14.If the page 22 of a rigidity on described storage barrel 14 in described angle [alpha]
1in time, is just released, then between this page 22 and described storage barrel 14, occur significant contact force due to its bending rigidity.If the page 22 of a rigidity is in its direction, conversion was not long ago just released, then this page 22 still contacts with described storage barrel 14, and its relative motion increase relative to this storage barrel 14 and contact force also do not reduce.This will cause cut when the page back side of sensitivity.Therefore according to the present invention, α is proposed
1> α
2significant.
Reference number table
1,2 printing mechanisms
3,4 inking mechanisms
5,6 wetting mechanisms
7,8 plate cylinders
9,10 transfer cylinder
11,12 impression cylinders
13 transfer drums
14 storage barrels
15 upset cylinders
16-21 gripper system
22 pages
23,24 drawing-in type gripper systems
25-27 page guiding device
28 blows air
29 withdrawing air
30 swivel joints
31 axle journals
32 suction channels
33 sucktion fans
34 bypass air valves
35 motors
36 corner transmitters
37 control device
38 control cam
39 adjusting gears
40 rotations
41 pinions
42 governor motors
43,44 gripper bite shafts
45,46 roller levers
47,48 rollers
49 horizontal lines
50 brakes
Claims (4)
1. the equipment for making page overturn during being conveyed through printing machine, has:
First transmits cylinder (14), this first transmit cylinder have for keep described page (22) front advance and after the gripper system (19,20,23,24) at edge of advancing;
Second transmits cylinder (15), this second transmit cylinder have for accept described page (22) described first transmit on cylinder (14) after the gripper system (21) at edge of advancing;
For making the device (38,45-48) opened in the gripper of the edge of front advancing transmitting cylinder (14) described first of gripper system (19,20);
At least one is for making described transmission cylinder (14,15) around the driver of its parallel axis (40) synchronous revolving,
It is characterized in that, described gripper system (19,20) can regulate according to the bending rigidity of described page (22) at the described first opening time point transmitting the gripper in the edge of front advancing of cylinder (14), wherein, obtain the different anglec of rotation α of described device (38) when page (22) that bending rigidity is different, described anglec of rotation α is adjusted to when rigidity page (22) and is less than when page (22) that rigidity is less.
2. equipment according to claim 1, it is characterized in that: a control cam (38) is set for opening described gripper system (19,20) the gripper in the edge of front advancing transmitting cylinder (14) described first, the axis (40) that this control cam can transmit cylinder (14) around described first is conditioned.
3. equipment according to claim 2, is characterized in that: described control cam (38) is fixed on the adjusting gear (39) of an adjusting transmission device (41,42).
4. equipment according to claim 3, is characterized in that: a motor (42) be connected with control device (37) acts on described adjusting transmission device (41).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010011251.8 | 2010-03-12 | ||
| DE102010011251 | 2010-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102189749A CN102189749A (en) | 2011-09-21 |
| CN102189749B true CN102189749B (en) | 2015-01-07 |
Family
ID=44508097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010622051.XA Active CN102189749B (en) | 2010-03-12 | 2010-12-30 | Device for turning pages during period of transporting page to pass through printer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102189749B (en) |
| DE (1) | DE102011011119A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104080618B (en) * | 2011-10-31 | 2017-02-15 | 惠普印迪戈股份公司 | Duplex section |
| DE102018215386A1 (en) * | 2017-10-06 | 2019-04-11 | Heidelberger Druckmaschinen Ag | Printing machine with a turning device and a guide |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216501A (en) * | 1996-04-20 | 1999-05-12 | 海德堡印刷机械股份公司 | Turning arrangement for a printing machine, especially a sheet-feed offset printing machine |
| CN1365889A (en) * | 2001-01-18 | 2002-08-28 | 海德堡印刷机械股份公司 | Apparatus for turning plane printed matter in half turning paper treating machine |
| CN1608847A (en) * | 2003-10-22 | 2005-04-27 | 海德堡印刷机械股份公司 | Apparatus for conveying sheets through a printing machine |
| CN101125479A (en) * | 2006-08-16 | 2008-02-20 | 海德堡印刷机械股份公司 | Apparatus for opening and pivoting a turner gripper in a sheet processing machine |
| DE102007049643A1 (en) * | 2006-11-06 | 2008-05-08 | Heidelberger Druckmaschinen Ag | Method for applying curvature during conveyance via a press machine |
| CN101177063A (en) * | 2006-11-10 | 2008-05-14 | 海德堡印刷机械股份公司 | Method and apparatus for turning a sheet during its transport through a printing press |
-
2010
- 2010-12-30 CN CN201010622051.XA patent/CN102189749B/en active Active
-
2011
- 2011-02-14 DE DE201110011119 patent/DE102011011119A1/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216501A (en) * | 1996-04-20 | 1999-05-12 | 海德堡印刷机械股份公司 | Turning arrangement for a printing machine, especially a sheet-feed offset printing machine |
| CN1365889A (en) * | 2001-01-18 | 2002-08-28 | 海德堡印刷机械股份公司 | Apparatus for turning plane printed matter in half turning paper treating machine |
| CN1608847A (en) * | 2003-10-22 | 2005-04-27 | 海德堡印刷机械股份公司 | Apparatus for conveying sheets through a printing machine |
| CN101125479A (en) * | 2006-08-16 | 2008-02-20 | 海德堡印刷机械股份公司 | Apparatus for opening and pivoting a turner gripper in a sheet processing machine |
| DE102007049643A1 (en) * | 2006-11-06 | 2008-05-08 | Heidelberger Druckmaschinen Ag | Method for applying curvature during conveyance via a press machine |
| CN101177063A (en) * | 2006-11-10 | 2008-05-14 | 海德堡印刷机械股份公司 | Method and apparatus for turning a sheet during its transport through a printing press |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011011119A1 (en) | 2011-09-15 |
| CN102189749A (en) | 2011-09-21 |
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