CN101229707A

CN101229707A - Printing press

Info

Publication number: CN101229707A
Application number: CNA2008100044733A
Authority: CN
Inventors: T·霍林斯; J·麦克龙; A·拉姆
Original assignee: Goss Graphic Systems Inc
Current assignee: Goss Graphic Systems Ltd; Goss International LLC
Priority date: 2003-07-08
Filing date: 2004-07-07
Publication date: 2008-07-30
Also published as: CN100404251C; GB0315986D0; EP1767363A2; GB2403688A; DE602004018197D1; EP1767363A3; GB0408085D0; CN1819921A; ATE416086T1; GB2403688B; EP1767363B1

Abstract

A folder for a web-offset printing press is disclosed. It comprises an upper folder module including at least one former to impart a first longitudinal fold to a continuous web of printed matter passing over the or each former, a lower folder module to receive the folded web from the upper folder module and comprising means to cut the web into longitudinal sections and impart a second fold to each section substantially at right angles to the first longitudinal fold and, a delivery module comprising means to receive the folded sections from the lower folder module and deliver them for transportation out of the folder. The delivery module is discrete and separable from the lower folder module.

Description

Printing machine

The application is to be on July 7th, 2004 applying date, and application number is dividing an application of 200480019320.6 application for a patent for invention.

Technical field

The printing machine that the present invention relates to be used for the folding machine (folder) of web offset printing machine, reconfigures the method for folding machine and comprise this folding machine for the web offset printing machine.

Background technology

Wheel changes the hectograph rotary printing machines and comprises a plurality of printing elements, and designed printing element can be printed onto content on the continuous webs of paper of for example separation of the printed medium of paper, and this printed medium moves on each printing element.Each unit comprises a pair of cylinder group or printing idol (printcouples) at least, and this printing idol comprises the plate cylinder of rotation installation and the blanket cylinder that rotation is installed, and wherein plate cylinder is connected with one or more printed panels.Many such printing machines combine does not have an axle drive system, and each cylinder group is driven by its oneself drive motor therein, and this drive motor directly drives a cylinder in this group via belt transmission or gear drive.Cylinder in each cylinder group is typically mechanical couplings, thereby makes power pass to other cylinders this group from the cylinder of direct driving.When plate cylinder rotates, can operate one that be associated with each printing idol and comprise the inking system of ink roller row so that printing ink is fed on the printed panel.When the cylinder surface of forme and blanket cylinder is in rotation and contacts, the pattern of inking is sent on the blanket cylinder from plate cylinder, send printed medium to from blanket cylinder again, printed medium is usually included in the paper web of walking between blanket cylinder and the impression cylinder.In order all to print the two sides of paper web, in fact impression cylinder is exactly the blanket cylinder in another printing idol, and this printing idol comprises the plate cylinder with printed panel, and printing ink is given this printed panel from the roller biographies of another inking system.Thus, be understandable that the relative both sides that the printing idol are arranged in paper web, this paper web is walked between the printing idol.

Each printing element comprise be used to install each printing idol with and the framework of corresponding inking system.Printing element also can comprise the dampening system that is associated with each inking unit, and it also is installed in the framework.Printing element is spaced apart from each other, and with the folding machine alinement, thereby supply paper web by each printing element from the reeling-up stand of the separation on the side that is installed to each printing element or the ground under it, then paper web is sent in the folding machine with the horizontal direction away from the unit.A handle is used for paper web is cut into the slitter of disjunct paper tape, thereby and some one or more paper tapes that are used to overturn made before they enter folding machine they carried out directed circulator bar, be set between printing element and the folding machine.

In extensive high power capacity printing, for example, in the printing of newspaper, by provide some to be perpendicular to one another to be installed in the complete printing couple above another for each printing element, make paper web in direction vertically upward, begin between every pair of printing idol, to move, realize colored printing from reeling-up stand.Unit with four printing couples, just the unit of eight printing idols can print out four kinds of colors, and be referred to as " four-roller type " unit usually on each face of paper web.According to the printing that will carry out and quality that will print out and number of colors, the unit also can have the printing couple of varying number.For example, having five pairs of even " five roll-types " unit of printing has been known.When the printing paper web appearred in the upper end from each printing element, it crossed roller, and the rotating shaft of this roller and paper web moving direction meet at right angles.When paper web is crossed cylinder, change the direction that it moves up, thereby this moment its horizontal direction along printing machine is moved towards folding machine.According to the structure of printing machine, cut paper web, and before they enter folding machine, by make they cross with the paper web moving direction in angle of 45 degrees the circulator bar and they are overturn.

In the routine printing, each printing element has forme and the blanket cylinder that fixed diameter is arranged.Be understandable that the diameter of these cylinders indicates the burble point of image out of the press, promptly utilize this printing element can print the maximum length of image.Take turns in the printing or in plate cylinder once rotates, send in the printing of blanket cylinder will being printed on an image on the page one, the maximum length of the page out of the press can not surpass the circumference that maybe can only be slightly less than forme and blanket cylinder, perhaps, in the two-wheeled printing, promptly send in the printing of blanket cylinder being printed on two images on the page in plate cylinder once rotates, the maximum height of its page out of the press can not surpass half of roll circumference.

Changing burble point is the very difficult and time-consuming task of item, because its size and geometry to printing machine and folding machine all is significant, and relate to basically and change forme and blanket cylinder for the cylinder of different-diameter, and the position that relates to many other elements in replacement or change printing element or the printing machine, these elements comprise the cylinder of folding machine, this folding machine cuts into each duplicate with paper web, thereby and must varying sized variation burble point, just the duplicate length that paper web cuts into is changed.This need take and re-assembly this or each printing element and folding machine usually fully apart.It is not only very expensive to carry out this operation, and is bad especially, has taken considerable time because printing machine is in non-operating state.Therefore, this whole production power to printing machine has quite negative influence.In fact, many press operator can not stop printing machine simply during the tediously long time cycle of this section, increase print content and very strict closing date because he must deal with.Thus, the separation of images point out of the press that available special printing machine is obtained is considered as fixing usually, so the newspaper size that can print out with the sort of printing machine is conditional.Can not change the burble point of common printing machine, or can not be very fast and easily accomplish this change, very strictly limited the flexibility of expection, and such printing machine can't satisfy this flexibility.Thus, the printing machine producer has to be provided at the interior different printing machine of particular separation spot size scope to satisfy consumer's needs, and it comprises printing element and folding machine.

Except the problems referred to above, common printing machine also has a plurality of other shortcomings, and these shortcomings have reduced its running time and hindered its flexibility.Very Duan closing date and high demand mean usually and must print continuously on long time period ground.Yet, when finishing the preceding printing work, for new printing work spent time of preparing can be caused delay.For example, for pressing plate (plate-up), must change the independently printed panel on each printing cylinder that is arranged in each printing idol.Task when this is special charges is because enter the restriction of other elements that plate cylinder is in the way, for example restriction of inking device and/or run-board unit.It will also be appreciated that in the four-roller type printing element, need before starting new printing process, change being positioned at eight printed panels on the plate cylinder with this printing element.In addition, printing machine can comprise a plurality of printing elements, and all these unit all needed pressing plate before being used for carrying out new printing.Experience shows that a people changes the printed panel that is positioned on the single four-roller type printing element and need spend at least 45 minutes.

Also will be understood that,, carry out time-based maintenance the specific idol in independent printing element or each printing element for the purpose of safeguarding and/or repairing.Yet some element is difficult to have to pull down printing element so that can clean near the element that damages or to it near meaning, and this has prolonged the downtime of printing machine widely.

Because making for pressing plate or maintenance and other application aims, the structure height of each printing element, need bigger and more expensive building hold them, so foregoing problems more increases the weight of near their associated components of printing even summation at place, high position more.In addition, be positioned on another and pile up because printing idol is one, therefore the paper web that will print must with the different colours ink printing to the distance of mobile phase between each point of paper web to length.This can be when printing machine be shut down, changes during the forme and when restarting printing machine, makes on figure image persistence aligning out of the press to go wrong, and can increase waste.Should also be noted that corresponding the gaining in weight and structural instability of printing element meeting of bigger height, need strengthen the basis of printing machine greatly.Though can alleviate by using satellite printing machine to the problem that distance caused between each point of paper web owing to the printing machine height with the different colours ink printing, in satellite printing machine, a plurality of cylinder group are arranged on the center impression cylinder around, but such printing machine machinery is very complicated and need time-based maintenance.

Summary of the invention

An object of the present invention is to alleviate in fact traditional problem that folding machine caused that is used for the web offset printing machine of using.

The invention provides a kind of folding machine that is used for the web offset printing machine, it comprises the last folding machine module that includes a former at least, is used for the first longitudinal folding continuous webs of paper of giving the content out of the press of passing this former and each former; With following folding machine module, be used to receive the folding paper web that comes from the folding machine module.It also comprises and paper web is cut into longitudinal section and with the second folding device of giving each sheet, second folding basically with first longitudinal folding the meeting at right angles; And conveyor module, it is useful on to receive the pleated sheet that comes from following folding machine module and they are transported to folding machine and transmits the device that exports, and wherein conveyor module can separate with following folding machine module.

The present invention also provides a kind of method that reconfigures folding machine for the web offset printing machine, this folding machine comprises the folding machine module, and folding machine module contains at least one former and is used for the first longitudinal folding continuous webs of paper of giving the content out of the press of passing it or passing each former on this; Comprise discrete following folding machine module, this module can be separated with last folding machine module, is used to receive the folding paper web that comes from the folding machine module; And comprise and be used for paper web is cut into longitudinal section, with the second folding device of giving each sheet, wherein this second folding basically with first longitudinal folding the meeting at right angles; Also comprise conveyor module, it has to be used to receive and comes from the down pleated sheet of folding machine module, and they are transported to the device of folding machine outlet; Wherein this method comprises and will descend the folding machine module to separate with last folding machine module, and with another down folding machine module displace the step of folding machine module, described method is characterised in that and conveyor module is separated with following folding machine module and conveyor module is attached to step on described another time folding machine module once more.

The present invention also provides a kind of printing machine that comprises aforesaid folding machine.

Description of drawings

Only, with reference to the accompanying drawings embodiments of the invention are described in the mode of example, wherein:

The simplified side view of Fig. 1 explanation folding machine according to an aspect of the present invention;

Fig. 2 illustrates down the folding machine module, conveyor module and the simplified plan view of displacing the folding machine module.

The specific embodiment

When main modular being changed into another main modular with cylinder and have the printing of different images burble point with execution, folding machine also must change.As seen in Figure 1, generally include three parts, promptly go up folding machine module 50, following folding machine module 51 and conveyor module 52 according to the folding machine of the embodiment of the invention.Last folding machine module 50 comprises at least one former 53 (two formers 53 shown in Fig. 1), and it was with the first longitudinal folding paper tape 54 of giving when paper tape 54 moves this former and a plurality of pincers roller 55.Two kinds of dissimilar following folding machines are arranged here usually, and usually they are called pawl type folding machine and swivel hinge machine.As shown in fig. 1, pawl type folding machine comprises when collection cylinder 56 leaves one or each former 53 with convenient paper tape 54 to be collected paper tape 54, is used for paper tape is cut into shearing drum 58 by the determined longitudinal section of page height; And pawl type cylinder 57, it is the second folding shearing sheet of giving, and its direction meets at right angles with the folding direction of giving by or each former 53 paper tape that provides 54 basically.Swivel hinge machine (not shown) comprise folding roller and with shearing drum second folding roller together, it is carried out and top identical functions.

Shearing sheet or newspaper pass folding machine module 51 and enter into conveyor module 52, this conveyor module 52 comprises the paddle wheel 59 that rotation is installed, it flows to conveyer belt 59a with newspaper, and this conveyer belt 59a has the suitable copy space that utilizes the back press mechanism to pile up and in bundle.Conveyor module 52 also comprises the stripper (not shown) between paddle wheel 59 and conveyer belt 59a, and it is slower than paddle wheel 59 running speeds, and identical with the speed of conveyer belt 59a.Stripper is released copy and they is shifted onto on the conveyer belt 59a from paddle wheel 59.

The

cylinder

56,57,58 of following folding machine module 51 is relevant with all burble points, this means when burble point changes, and also must replace each

cylinder

56,57,58 by the cylinder that has with respect to the different-diameter of new burble point.Change burble point if changed the main modular 7 of printing element, then also must change the

cylinder

56,57,58 of folding machine module 51 down.

Thus, according to a further aspect in the invention, from following folding machine module 51 traveling rollers and change them, the following folding machine China ink 51 of being constructed can disperse, and separates with last folding machine module 50 except physically.Following folding machine module 51 and conveyor module 52 can be integrated in integral body or the common framework.Yet more preferably, conveyor module 52 also disperses, and separates with following folding machine module 51.Conveyor module 52 comprises paddle wheel 59, and preferably, comprises stripper and conveyer belt.Yet it also can only comprise paddle wheel 59.

Thus, following folding machine module 51 and its

cylinder

56,57,58 form an overall separation part together, it can whole be pulled down from folding machine, and with another folding machine module 60 (referring to Fig. 2) that is stored in the off-line position it is substituted, and its can with have the

cylinder

56,57 that meets new burble point dimensional requirement diameter and be assembled together.Following folding machine module 51 and conveyor module 52 can be installed on the slide rail, make between running position that they can be in folding machine and non-running off-line position to move.In the plane of Fig. 2, shown following folding machine module is in its running position, and wherein it is connected with conveyor module 52 with last folding machine 50 (not shown among Fig. 2).Following folding machine module 51 can be separated with folding machine, and in by the direction shown in the arrow Y, move, arrival is by the represented offline storage position of dotted line, and can by with another down folding machine module 51a along moving this time folding machine module 51 is replaced by the direction shown in the arrow Z.

If folding machine comprises conveyor module 52, need not consider its burble point size even then use together yet, and identical conveyor module 52 is used with any folding machine module down 51 with the folding module of different jackknife actions.The relative position of folding machine module 51 and conveyor module 52 is much easier under changing, thereby but copy is delivered to optimization the conveyor module 52 from following folding machine module 52.Each all has its oneself bogie side frame 65,66 following folding machine module 51 and conveyor module 52, and the element of

corresponding module

51,52 is installed on these bogie side frames 65,66.Preferably, conveyor module 52 is littler with the spacing distance of following folding machine module 51 than sidewall 65 with the spacing distance of bogie side frame 66, thereby conveyor module 52 can partly slide in the following folding machine module 51 that is in its running position.Conveyor module 52 also can slide into unengaged position at an easy rate, or from down folding machine module 51 withdrawals so that for maintenance and repair, replace one of them or replace they two and be easy near folding machine module 51 and conveyor module 52 down.

Be understandable that the paddle wheel 59 of conveyor module and stripper are transported to copy on the conveyer belt 59a, this conveyer belt 59a has the copy space of pre-determined constant, so that utilize the back press mechanism to pile up and the copy of in bundling.Yet various user need carry copy with different copy spaces.In order to change the copy space of conventional folding machine, must replace paddle wheel 59 and stripper with another different structure.Yet, in the present invention, replace having to dismantle down conveyor module 52 and change paddle wheel 59 and stripper, available another module 52 fast, easily substitutes whole conveyor module 52, and wherein this another module 52 has the paddle wheel that copy is carried in the enough required copies of energy space.

Usual practice is to be next to first time folding machine standby following folding machine is installed, thereby just in case a unit has damaged, production can be switched on other unit and carry out.If folding machine has separable conveyor module 52, then only need a conveyor module 52, and it can use with two following folding machine modules 51.Replacedly, if two conveyor modules 52 are arranged here, then can be with each conveyor module 52 all with folding machine module 51 uses down.

Be understandable that, need not separable folding machine module 51 down, just can obtain some aforementioned advantages, for example enter down the replacement of folding machine module and conveyor module 52.Thus, according to another aspect of the present invention, folding machine has the folding machine of the integrated upper and lower folding machine of the module of comprising 50,51, only has conveyor module to separate with the frame of folding machine.In two kinds of configurations, what advised is that conveyor module 52 combines its oneself the motor that is used to drive paddle wheel 59, and preferably, also combines stripper and conveyer belt.

To those skilled in the art, the of the present invention multiple modifications and changes that belong to following claim clause all are conspicuous, and the description of front should only be considered as the description of preferred embodiment.

Claims

1. a folding machine that is used for the web offset printing machine comprises the folding machine module, and this module comprises at least one former, is used for the first longitudinal folding continuous webs of paper of giving the content out of the press of passing it or passing each former; Comprise folding machine module down, be used to receive the folding paper web that comes from the folding machine module; And comprise and be used for that paper web cut into longitudinal section and the second folding device of giving each sheet, wherein this second folding basically with first longitudinal folding the meeting at right angles; Also comprise conveyor module, it has the device that is used to receive the pleated sheet that comes from following folding machine module and transfers them to the folding machine outlet; It is characterized in that conveyor module disperses, and can separate with following folding machine module.

2. according to the folding machine of claim 1, wherein descend the folding machine module to disperse, and can separate with last folding machine module.

3. according to the folding machine of claim 2, wherein descend the folding machine module to comprise the framework that described device is installed thereon, this framework comprises crew-served device, is used to remove framework and locate in the running position being connected of folding machine intermodule.

4. according to the folding machine of claim 2, wherein descending the folding machine module is pawl type folding machine, and comprises collection cylinder, pawl type cylinder and shearing drum.

5. according to the folding machine of claim 2, wherein descending folding machine is swivel hinge machine module, and comprises folding roller, second folding roller and shearing drum.

6. according to the folding machine of claim 5, wherein the diameter of corresponding cylinder is different in each following folding machine module.

7. according to the folding machine of claim 2, its middle frame comprises and can will descend the folding machine module to move to the device of offline storage position from its running position.

8. according to the folding machine of claim 7, the wherein said device that is used for mobile following folding machine module comprises the device that different following folding machine modules can be arranged on place, described running position and displace the folding machine module.

9. according to the folding machine of claim 7, wherein folding machine comprises at least two following folding machine modules, and each module can move between folding machine running position and offline storage position.

10. according to the folding machine of claim 2, wherein conveyor module comprises the device of framework and coordinated manipulation, and the device of this coordinated manipulation can be removed being connected of this framework and the following folding machine intermodule that is in the operating position place.

11. according to the folding machine of claim 2, wherein be arranged in being used to receive and coming from the down pleated sheet of folding machine of conveyor module, and the device that they are transported to the transmission exit of folding machine comprised rotatably mounted paddle wheel.

12. according to the folding machine of claim 11, wherein supply unit further comprises stripper and conveyer belt, is used to receive the pleated sheet that comes from paddle wheel, and they are sent out from folding machine.

13., wherein can utilize the motor of himself to drive paddle wheel rotatably according to the folding machine of claim 11.

14. according to the folding machine of claim 13, wherein motor mounting is on conveyor module.

15. method that reconfigures folding machine for the web offset printing machine, this folding machine comprises the folding machine module, and folding machine module contains at least one former and is used for the first longitudinal folding continuous webs of paper of giving the content out of the press of passing it or passing each former on this; Comprise discrete following folding machine module, this module can be separated with last folding machine module, is used to receive the folding paper web that comes from the folding machine module; And comprise and be used for paper web is cut into longitudinal section, with the second folding device of giving each sheet, wherein this second folding basically with first longitudinal folding the meeting at right angles; Also comprise conveyor module, it has to be used to receive and comes from the down pleated sheet of folding machine module, and they are transported to the device of folding machine outlet; Wherein this method comprises and will descend the folding machine module to separate with last folding machine module, and with another down folding machine module displace the step of folding machine module, described method is characterised in that and conveyor module is separated with following folding machine module and conveyor module is attached to step on described another time folding machine module once more.

16. one kind comprises the printing machine according to the folding machine of any claim in the claim 1 to 14.