EP2030931B1 - Variable folding apparatus and printing press with a folding apparatus - Google Patents

Description

The invention relates to a folding apparatus and printing presses with a folding apparatus according to the preamble of claim 1 or 19, 20, 21, 22, 23 or 24.

Such a folder has a cylinder referred to as a transfer, folding blade or collecting cylinder, which carries at its periphery a plurality of holding tools for holding a supplied to the cylinder to be folded printed product and folding blades, which serve along a provided folding line of the on Cylinder held printed product to press out of the interior of the cylinder against the printed product, thereby pressing it into a jaw of a cooperating with the folding blade or collecting cylinder jaw cylinder. In non-collection mode, the printed product is released from its holding tool at each passage of a printed product through the gap between folding blade and jaw cylinder and the following folding blade extended. In collective operation, held on the effective here as a collecting cylinder folding blade pressure product passes through the gap at least 2 or n times, with each revolution of the collecting cylinder another printed matter is collected on the same peripheral portion of the collecting cylinder until finally n times collected printed matter delivered together to the jaw cylinder and be folded at the same time.

The movement of holding tools and folding blades is generally determined by a cam whose contour is scanned by a plurality of sensing rollers, which are each coupled to one of the holding tools or the folding blade.

In a first type of folder, the cam is coaxial with the cylinder through two mounted discs, referred to as a cam and as a cover disc, formed, which are scanned by the feeler rollers on a common roller lever simultaneously. The stationary cam has a trough into which a follower roller can dip. When this happens, the tool controlled by the follower roller performs a working movement such as releasing a printed matter in the case of a holding tool or extending in the case of a folding knife.

The cover also has at least one trough, which is positioned in non-collecting mode so that it overlaps with the trough of the cam and does not interfere with the immersion of the sensing roller, while the cover disc can stand or rotate. In collective operation, the cover disc rotates at a different speed from the rotational speed of the cylinder, so that overlap only with every n-th revolution of the cylinder, the troughs and the working movement is performed, then each n collected printed products are transferred and folded simultaneously. Viewed the other way around, the cover disk can be formed with a reduced radius relative to the cam disk and have one or more peripheral sections - cover cams - with a radius corresponding to the cam disk outside the recess, which, brought into coincidence with the recess of the cam disk, continues the undisturbed cam track of the cam disk ,

So that not the same print image in a double circumference machine, d. H. z. B. two printed image sections on the circumference of the forme cylinder in a row, comes to rest on the first recorded sheet, the collection cylinder as possible an odd number, z. B. at least three holding tools, at the same distance at its periphery. One speaks then z. B. from a three-piece collection cylinder.

In order to enable a simple collection ("single collection") iVmz B. a double-sized forme cylinder, the collecting cylinder can be made in three parts and the Cover disc on the circumference either have one or two cams. In the first case, the collecting cylinder sets 2/3 turns during one revolution of the cover disc, and in the second case 4/3 revolutions during one revolution of the cover disc.

In order to achieve the highest possible production flexibility, it is desirable per se to be able to set any desired value of n up to an upper limit n _max . Since, in general, only the phase angle between the curve plate and the cover plate can be varied in order to vary n, both n _max and the number of possible values of n are small.

In order to achieve a higher variability of the collecting operation, is in DE 38 28 372 A1 a folding apparatus with a seven-part collecting cylinder has been proposed in which the cover plate is replaced by a plurality of radially adjustable covering cam. To a certain extent, these cams make it possible to form a cover disk with a variable circumferential course, depending on the desired value of n.

In this known folder eight Abdecknocken are provided which form two diametrically opposed groups of four each distributed over an angular interval of 90 ° Abdecknocken, wherein within a group, the angular distances between the Abdecknocken in turn 30 °, 15 ° and 45 ° amount. The folding cylinder is seven-part. With two different rotational speeds of the covering cam relative to the cylinder, production modes with n = 1, 2, 3, 4, d. H. Non-collecting, picking up, collecting twice and collecting three times realizable.

Also in the WO 2005/102889 A1 proposed collecting cylinder allows the above production types of not collect to collect three times, the collecting cylinder here five parts (ie, five holding elements on the circumference) is formed. Here, the cover plate on its circumference two groups of adjustable Abdecknocken, wherein in the first group, the Abdecknocken an angular distance from each other by 60 ° or 120 °, and in the second group, the angular distance is 90 ° or 180 °.

The WO 97/49629 A1 discloses a folding cylinder with a cam and two in operation with the folding cylinder rotating shrouds. The two cover plates are, in order to switch from a first Betreibsart in a second mode, via a Phasenverstellgetriebe against each other and against the cam rotatable.

In the DE 101 45 563 A1 discloses a folding unit with a folding blade cylinder comprising two fixed cams with cam grooves for extending the folding blades and the gripping elements and at lower speeds surrounding Abdecksektore for covering the wells. In addition to one-piece Abdecksektoren two-part Abdecksektoren are provided, wherein in one position all effective Abdecksensoren with uniform angular intervals of 120 ° to each other are arranged and rotate at a speed which behaves to the rotational speed of the respective cylinder as 5 to 6.

By the WO 91/12195 A1 a folding apparatus is known, wherein Abdecknocken the covering are adjustable in the radial direction.

The invention has for its object to provide a less complicated folding apparatus and printing machines, in which or with which many production modes are possible.

The object is achieved by the features of claim 1 or 19, 20, 21, 22, 23 or 24.

With increasing size of printing cylinders and / or with a trend towards smaller printed products, it is now desirable to increase the number m of possible printed image sections m _max in the circumferential direction on the printing cylinder, in particular forme cylinder, and / or the number n _{max of} the maximum product collectable to each other sections, z. B. to increase to five or more. Instead of continuing the system with a plurality of radially movable, and thus activatable or deactivatable cams, in the present embodiment, a plurality, for. B. at least four circumferentially relative to each other in their distance variable cam on the cover plate provided.

The achievable with the present invention consist in particular that a - almost any - pattern for arranging this number of cams in the circumferential direction can be formed by a number of circumferentially relative to each other in the distance variable cam.

If at least two of this number of cams can still be brought into coincidence with one another, not only the pattern of the distribution of the number of cams but also the effective number of cams (downwards) can be varied.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Fig. 1

eine schematische Darstellung eines Zylinders eines Falzapparates;

Fig. 2

eine schematische Darstellung des Querschnitts eines Sammelzylinders;

Fig. 3

eine Darstellung einer ersten Einstellung einer mit einer Kurvenscheibe zusammenwirkenden mehrteiligen Deckscheibe;

Fig. 4

eine Darstellung einer zweiten Einstellung der Deckscheibe;

Fig. 5

eine Darstellung einer dritten Einstellung der Deckscheibe;

Fig. 6

eine Darstellung einer vierten Einstellung der Deckscheibe;

Fig. 7

eine perspektivische Darstellung der Deckscheibe;

Fig. 8

eine schematische Darstellung des Nockenmusters in einer ersten Betriebsart;

Fig. 9

eine schematische Darstellung des Nockenmusters in einer zweiten Betriebsart;

Fig. 10

eine schematische Darstellung des Nockenmusters in einer dritten Betriebsart;

Fig. 11

eine schematische Darstellung des Nockenmusters in einer vierten Betriebsart;

Fig. 12

eine Übersicht über die Formzylinderbelegung und die erzielbaren Falzprodukte in vier wahlweise realisierbaren Betriebsarten;

Fig. 13

ein Ausführungsbeispiel für den Antrieb der mehrteiligen Deckscheibe.

Show it:

Fig. 1

a schematic representation of a cylinder of a folding apparatus;

Fig. 2

a schematic representation of the cross section of a collecting cylinder;

Fig. 3

a representation of a first setting of a cooperating with a cam multi-part cover plate;

Fig. 4

a representation of a second adjustment of the cover plate;

Fig. 5

a representation of a third setting of the cover plate;

Fig. 6

a representation of a fourth setting of the cover plate;

Fig. 7

a perspective view of the cover plate;

Fig. 8

a schematic representation of the cam pattern in a first mode;

Fig. 9

a schematic representation of the cam pattern in a second mode;

Fig. 10

a schematic representation of the cam pattern in a third mode;

Fig. 11

a schematic representation of the cam pattern in a fourth mode;

Fig. 12

an overview of the form cylinder assignment and the achievable folded products in four optional realizable modes;

Fig. 13

an embodiment of the drive of the multi-part cover plate.

Fig. 1 shows a schematic view of an end portion of a cylinder 01 of a folder, z. B. a jaw cylinder 01 or in particular one also referred to as a transport or folding blade 01 collecting cylinder 01 a folder. The folder comprises, in addition to said cylinder 01 a cross cutter, the fed strand of printed material webs, for. B. paper webs decomposed into individual printed products, and z. B. a belt conveyor that accelerates the separated from the cross cutter printed matter on the peripheral speed of the transport cylinder 01 and leads to the peripheral surface. Since cross cutter and belt conveyor mechanism are known per se, they are in the Fig. 1 not shown and will not be described in detail here.

The peripheral surface of the cylinder 01 has in the circumferential direction one behind the other a first group of a number of p (for example, p ≥ 7, in particular p = 7) z. B. trained as holding elements 02 tools 02, for example, gripper 02 or dot needle rows 02 of a transport cylinder 01 or other design z. B. Falzklappen 02 a jaw cylinder 01, on (schematically in Fig. 2 for the transport cylinder 01 shown in cross section). The designed as a transport cylinder 01 cylinder 01 carries circumferentially offset a second group of p tools 03, z. B. from each slot extendable folding blade 03 to introduce a held on the folding blade 01 printed product in the jaw of a likewise not shown, because known jaw cylinder. The phasing of the two groups on the circumference of the folding blade 01 is z. B. adjustable to adjust the distance between a held by one of the gripper 02 leading edge of a printed product and the generated on this printed product fold to the length of the printed product can. The movement of the gripper 02 is in each case by a control arm 04 (in Fig. 1 only exemplarily shown only once), which carries a roller lever 07 carrying at least one follower roller 06 at a front end of the cylinder 01. As shown, two contact rollers 06 are arranged next to one another which cooperate with a control cam of a control or cam disk 08 and with a cover disk 09. The designated as cam 08 first disc 08 is preferably fixed to the frame during operation of the folder (but possibly for adjustment purposes) with respect to. A side frame 11, the cover plate 09 is preferably arranged rotatable relative to the cam 08 and relative to the cylinder 01. Cam 08 and cover plate 09 are arranged coaxially with the cylinder 01.

The cam 08 has at least one trough 12, z. B. release trough 12, in which the rolling follower roller 06 immerse and thus on the roller lever 07 which the tool 02; 03 driving control arm 04 can operate. Preferably, the two control systems (first holding and second folding blade system) on the two axial sides of the collecting cylinder 01 are arranged in mirror image to each other (only one system shown). In a collecting cylinder 01 with gripper 02, the cam 08 has two troughs 12 (one for takeover and one for delivery). The gripping troughs, not shown, control, when the follower roller 06 of a gripper 02 engages them, an opening and closing movement of the gripper 02 respectively during the acquisition of a new printed product from the belt conveyor. This workflow must never be influenced by the cover plate 09, that is, in the area of the gripping recess, a follower roller 06 is not rolled over in any type of production by a cover cam (see below). The average of the Fig. 3 to 6 The above-indicated release trough 12 controls, depending on the desired type of production, in cooperation with the cover plate 09 (Gripper cover disc) the movement of the gripper 02 during the transfer of a printed product to the jaw cylinder 01 by a folding blade 03.

A holding element 02 (from the first group) and its associated tool 03 (folding blade 03) from the second group are controlled in the same rhythm. That is, when covering the discharge trough by a Abdecknocken the gripper cover disc, the tax depression of the folding blade curve is also covered by a Abdecknocken the Falzmesserdeckscheibe and vice versa.

The control of the group of holding elements 02 or / and the control of the group of folding blades 03 (not shown for folding blade 11) cover plate 09 now has on its periphery a plurality (number k> 1) of circumferentially relative to each other in their distance variable, with a reduced radius raised portions 13 (eg, 13.x with x = 1 to k, in particular k ≥ 4), z. B. referred to as cam 13, on. The raised gates 13, also referred to as cams 13, are such as to be brought into registry with a trough 12 of the associated control disk 08, which would continue the imaginary undisturbed (i.e., trough-free) peripheral curve of the control cam.

In principle, several or all of these sections 13 may be arranged in a common rotary body such that at least several of these sections 13 are movable in the circumferential direction.

In the advantageous embodiment described below, however, the cover plate 09 is designed in several parts and has a plurality of disks 14 (for example a number I) which can be rotated relative to each other (eg 14.y = 1 to I, in particular I ≥ 4), e.g. B. cams 14, on. The discs 14 each have at least one of the above-mentioned cam 13, in particular in each case a cam 13 (thus I = k) on. The discs 14 are arranged side by side so that the cam 13 when turning the cover plate 09 in a common Lane of the above-mentioned follower 06 lie. For this purpose, a part of the cam 13, for example, as in Fig. 3 to 6 be recognized to be warped in such a way laterally so that they come to rest in a track as narrow as possible. It is also possible for a part of the cams 13 (here, for example, the two cams 13.1 and 13.4 of the disks 14.1, 14.4) to be fully wide and a part of the cams 13 (here, for example, the two cams 13.2 and 13.3 of the middle disks 14.2; 14.3), in particular the cams 13 of inner discs 14 be formed half-width with respect to the roller width. The cams 13 of at least two of the discs 14 are preferably formed in such a way that they can be brought into the circumferential direction at least in a same angular position, in particular past each other.

Each of the discs 14 is advantageously driven by a differential which allows a rotational movement of the discs 14 relative to each other. Advantageously, all disks 14, ie ultimately the cover disk 09 as a whole, are driven by a drive via a multi-stage, in particular 3-stage transmission, which allows the below-mentioned different speed ratios between cylinder 01 and cover disk 09. The operational rotary drive of the cover plate 09 or discs 14 is advantageously mechanically coupled to the drive of the cylinder 01 or another cylinder of the folder on a respect. Its translation variable transmission 18, z. B. a multi-stage transmission 18. In Fig. 13 is an example of an advantageous embodiment of such a drive concept shown. Here, the cylinder 01 is not shown here Fig. 1 For example, via a drive wheel, a gearbox or a direct drive motor rotationally driven on its opposite ends of the illustrated discs 14. The cylinder 01 and a rotatably connected thereto shaft 17 is thus forcibly driven by a drive motor, not shown - individually or together with other components of the folder. On the shaft 17, the discs 14, z. B. by corresponding rolling or sliding bearing, relative to the shaft 17 and rotatably supported relative to each other. The shaft 17 is, in particular on the outside of the side frame, connected to the multi-stage gear 18. For this example, on the shaft 17th or a non-rotatably connected extension (eg on a section formed as a splined shaft), a bushing 19 (eg, with the .alpha.) which can be moved axially on the shaft 17 or the extension (eg in this section) within certain limits Splined shaft corresponding complementary inner teeth) rotatably connected to the shaft 17 and extension. The sleeve 19 is connected via a mechanism 21, for. B. via a push rod or threaded spindle, axially movable. At least one of the number of stages of the multi-stage transmission 18 corresponding number of gears 22.1; 22.2; 22.3, which have a different diameter and a different number of teeth, are mounted so spaced around the shaft or extension supported by radial bearings that the sleeve 19 (eg., With the internal teeth of the gears corresponding complementary external teeth) between an internal toothing of the respective gear 22.1; 22.2; 22.3 and the teeth z. B. of the spline piece is so verbingbar that the sleeve 19 between shaft 17 and extension and the gear 22.1; 22.2; 22.3 produces a form-fitting effective in the circumferential direction. A length of the sleeve 19 is such that it, when appropriately positioned, with only one of the gears 22.1; 22.2; 22.3 works together. Depending on the position of the sleeve 19 is now one of the gears 22.1; 22.2; 22.3 rotatably connected to the cylinder 01, ie rotatably on the sleeve 19 with the shaft 17 together. The other of the gears 22.1; 22.2; 22.3 run free on the shaft 17 or the extension.

Depending to be rotated disc 14 (shown here only for the disc 14.4) is in the circumferential direction of the gears 22.1; 22.2; 22.3 distributes a gear 23 arranged, via which a rotational movement of the cylinder 01, possibly translated, is transferable to the disc 14 and by means of which of the shaft 17 via the meshing gear 22.1; 22.2; 22.3 introduced rotational movement an additional rotary motion is superimposed. As such a transmission 23 is z. B. depending to be rotated disc 14, a differential gear 23, in particular a so-called. Harmonic Drive transmission provided. The superposition is done for example by means of an actuator 24, which in Fig. 13 merely symbolized by a drive shaft 24. Each of these gear 23 is associated with a disc to be rotated 14. The (three) gears 22.1; 22.2; 22.3 mesh with associated gears 26.1; 26.2; 26.3, which are arranged rotationally fixed at the entrance of the transmission 23. Depending on the position of the sleeve 19 transmits one of the pairings of the gears 22.1; 22.2; 22.3 and the gears 26.1; 26.2; 26.3 the rotation. In principle, the gear wheels 22.1; 22.2; 22.3 rotationally fixed, and the input of the transmission 23 associated gears 26.1; 26.2; 26.3 be individually fixable in the manner described via a sliding sleeve. The output of the respective transmission 23 is, for. B. via a pinion 27 and a rotatably connected to the driven pulley 14 gear 28, mechanically coupled to the driven pulley 14 (here disc 14.4) to the rotary drive. By choosing the force-transmitting gear pairing 22.1, 26.1; 22.2, 26.2; 22.3, 26.3 can be the relative speed (speed ratio) between the cylinder 01 and the discs 14 and the cover 09 set. The discs 14 are in production mode - ie without activation of one of the actuators in a setting phase - by the selected gear 22.1; 22.2; 22.3 all driven at the same speed, so that the multi-part cover plate 09 rotates in total with the selected relative speed. For adjustment purposes of one or more of the discs, this rotational movement (eg zero rotational speed at standstill) is superimposed, via the respective actuator 24, on a rotational movement acting on only the affected disc 14.

In an alternative solution, the rotational drive of the discs 14 or the cover plate 09 can also take place via a drive motor which is mechanically independent of the drive of the cylinder 01 and at least controllable with respect to its rotational speed. In the latter case, a stepped transmission can be omitted.

The cams 13 are stationary and unchangeable with respect to a radial direction of the cover plate 09 and rigidly connected to the respective disc 14 for the case described here of individual discs 14 or in each one-piece design of the respective disc 14 fixed part of the respective disc 14th

By circumferentially mutually adjustable in distance cam 13 (eg, a number k of 4) can now produce both the previously produced products in the production non-picking, disposing, collecting two times and Dreimalsammeln, moreover, but also still four-collecting without generating this would require an unnecessary number of cam activatable and deactivatable via a complicated pattern.

In Fig. 3 to 6 are shown in a section through the arrangement of the control disk 08 with the cover plate 09 different positions of the discs 14.1 to 14.4 in such a way that in Fig. 3 the cam 13.1 of the disc 14.1 of the trough 12 is opposite and the undisturbed border end of the adjacent control disc 08 continues, in Fig. 4 the cam 13.2 of the disc 14.2, in Fig. 5 the cam 13.3 of the disc 14.3, and in Fig. 6 the cam 13.4 of the disc 14.4 of the trough 12 is opposite and the undisturbed border end of the adjacent control disc 08 continues. A co-operating with control disk 08 and cover plate 09 pair of touch rollers 06 is thus forced in the area of the trough 12 to the level of undisturbed edges of the control disk 08 and therefore does not trigger actuation of the control arm 04 and the tool 02 concerned; 03 off.

The following are set out with the folder operable modes. Operating mode here means - in contrast to merely a temporary setting process - a stationary operating or production situation.

In a first mode, for. B. in the case of two print image sections (m = 2) on the folding unit upstream printing group cylinder 16, in particular form cylinder 16 (schematically in Fig. 12 ), the collecting cylinder 01 rotates two of the seven (p) divisions in one revolution of the forme cylinder 16. The cover plate 09 results by adjusting the Slices 14 z. B. in Fig. 8 illustrated picture. Here are in the range of three, spaced apart by 120 ° angle cam 13 on the circumference effective (120 ° arrangement). Two of the four cams 13, here preferably two narrower cams 13.2; 13.3, are in the circumferential direction in the same angular position, ie axially next to each other and work like a full-width cam ( Fig. 7 ). As a result, here is a reduced number of effective cam 13, here three, before. The discs 14 are arranged relative to each other, that in the region of three, spaced by 120 ° angular ranges of the cover plate 09 cams 13 are arranged circumferentially, and a fourth cam 13 either in registration with one of the three spaced apart by 120 ° cam 13 or in an ineffective overtake area is spent. About a z. B. the differentials upstream stage gear is or is the cover plate 09 (or the discs 14.x the multi-part cover plate 09) in a speed ratio 7 to 6 compared to the speed of the cylinder 01 driven or driven. That is, while the cylinder 01 makes one revolution (360 °), the cover disk 09 rotates by 420 °. The release trough 12 for the group to be controlled (eg the holding elements 02) is covered once and once free. That is, in the first revolution of the collecting cylinder 01, the product is held in the considered holding member 02 (one of seven) and then discharged in the second revolution of the collecting cylinder 01. Two sheets (printed image portions) are stacked before being discharged together. However, should not be collected at all, by rotating the cam 13 and the cam 13 carrying discs 14 in an overtaking area without trough 12 a production type "non-collecting", z. B. double production, possible.

Fig. 8 schematically shows the cover plate 09 with its cam pattern in order to produce a two-ply product of sections A and B at "one-time collecting" when two (m = 2) printed image sections, also referred to as "benefits" are arranged on the forme cylinder 16 on the circumference (please refer Fig. 12 ).

For the speed ratio between the speed of the seven-part cylinder 01 and the speed of the cover plate 09 or disc 14.x then applies in this mode of operation of the single use: $$\frac{\dot{n}\left(\mathrm{cylinder}01\right)}{\dot{n}\left(\mathrm{<figure-callout\; id="09"\; label="cover\; disc"\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">cover\; disc</figure-callout>}09\right)}=\frac{6}{7}$$

In a second mode, for. B. in the case of three printed image sections (m = 3) on the folding cylinder upstream form cylinder 16, the collecting cylinder 01 rotates three of the seven (p) divisions in a revolution of the forme cylinder 16. The cover plate 09 results by adjusting z. B. in Fig. 9 illustrated picture. Four cams 13 are in each case arranged in such a way that cams 13 are arranged in two groups of two mutually offset in pairs by 180 ° angular regions, wherein the two groups are offset by 60 ° to each other. The cover plate 09 is (or the discs 14.x of the multi-part cover plate 09) in a speed ratio 7 to 6_im driven or driven in relation to the rotational speed of the cylinder 01. That is, while the cylinder 01 makes one revolution (360 °), the cover disk 09 rotates by 420 °. The release trough 12 for the group to be controlled, z. B. holding elements 02 is alternately covered twice and once free. That is, in the first and second circulations of the collecting cylinder 01, the product is held in the considered holding member 02 (one of seven) and then discharged in the third revolution of the collecting cylinder 01. Thus, a three-layered product is formed, three sheets are collected. Should not be collected, however, is by rotating the cam 13 and the cam 13 bearing discs 14 in a passing area without trough 12 a production type "non-collecting", z. B. triple production, possible.

Fig. 9 schematically shows the cover plate 09 with its cam pattern in order to produce a three-ply product of sections A, B and C in "two-times collecting" when three consecutive (m = 3) printed image sections are arranged on the forme cylinder 16 on the circumference (see Fig. 12 ).

For the speed ratio between the speed of the seven-part cylinder 01 and the speed of the cover plates 09 then applies in this mode of the two-frame accumulation also: $$\frac{\dot{\mathrm{n}}\left(\mathrm{cylinder}\mathrm{01}\right)}{\dot{\mathrm{n}}\left(\mathrm{<figure-callout\; id="09"\; label="cover\; disc"\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">cover\; disc</figure-callout>}\mathrm{09}\right)}\mathrm{=}\frac{\mathrm{6}}{\mathrm{7}}$$

In a third mode, for. B. in the case of four printed image sections (m = 4) on the folding cylinder upstream form cylinder 16, the collecting cylinder 01 rotates four of the seven (p) divisions in a revolution of the forme cylinder 16. The cover plate 09 results by adjusting z. B. in Fig. 10 shown image (again with a reduced number of effective cam 13). In three mutually spaced by 90 ° to each other successive angle ranges cam 13 are provided. Again, z. B. two of the four cams 13, here again preferably the two narrower cams 13.2; 13.3, in the circumferential direction in the same angular position or the fourth cam 13 is spent in an ineffective overtaking area. The cover plate 09 is or is (or the discs 14.x the multi-part cover plate 09) in a speed ratio 7 to 4 compared to the speed of the cylinder 01 driven or driven. That is, while the cylinder 01 makes one revolution (360 °), the cover disk 09 rotates by 630 °. The release trough 12 is alternately covered three times and once free. That is, in the first, second, and third circulations of the collecting cylinder 01, the product is held in the considered holding member 02 (one of seven) and then discharged in the fourth revolution of the collecting cylinder 01. Four sheets (printed image portions) are stacked before being discharged together , Should not be collected, however, is by turning the cam 13 and the cam 13 bearing discs 14 in a passing area without trough 12 a production type "non-collecting", z. B. Quadruple production, possible.

Fig. 10 schematically shows the cover plate 09 with its cam pattern to produce a four-ply product of sections A, B, C and D at "three-time collecting" can, if four (m = 4) printed image sections are arranged on the forme cylinder 16 on the circumference in succession (see Fig. 12 ).

For the speed ratio between the speed of the seven-part cylinder 01 and the speed of the cover disks 09 then applies in this mode of three-time accumulation: $$\frac{\dot{n}\left(\mathrm{cylinder}01\right)}{\dot{n}\left(\mathrm{<figure-callout\; id="09"\; label="cover\; disc"\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">cover\; disc</figure-callout>}09\right)}=\frac{4}{7}$$

In a fourth type of production (double production with one-time picking), the forme cylinder 16 has four printed image sections (m = 4) on the circumference, but the collector cylinder 01 or its cover plate 09 has the cam image (FIG. Fig. 8 ) from the first mode, but the folder is running twice as fast. This gives two two-ply products, ie a double production of single-collected products.

In a fifth mode, eg. B. in the case of five printed image sections (m = 5) on the folding cylinder upstream form cylinder 16, the collecting cylinder 01 rotates five of the seven (p) divisions in a revolution of the forme cylinder 16. The cover plate 09 results by adjusting z. B. in Fig. 11 illustrated picture. In four mutually spaced by 72 ° successive angle ranges, the cams 13 are provided. The cover plate 09 is or is (or the discs 14.x the multi-part cover plate 09) in a speed ratio 7 to 5 compared to the rotational speed of the cylinder 01 driven or driven. That is, while the cylinder 01 makes one revolution (360 °), the cover disk 09 rotates by 504 °. The release trough 12 is covered four times alternately and once free. That is, in the first, second, third, and fourth circulations of the collecting cylinder 01, the product is held in the holding member 02 (one of seven) and then discharged in the fifth revolution of the collecting cylinder 01. Thus, a five-layered product is formed. By turning the cam 13 in a passing area without trough 12, the five-fold production is possible.

Fig. 11 schematically shows the cover plate 09 with its cam pattern in order to produce a five-ply product of sections A, B, C, D and E in "four-time collecting" when five (m = 5) printed image sections are arranged on the forme cylinder 16 on the circumference.

For the speed ratio between the speed of the seven-part cylinder 01 and the speed of the cover plate 09 then applies in this mode of four-pickup: $$\frac{\dot{n}\left(\mathrm{cylinder}01\right)}{\dot{n}\left(\mathrm{<figure-callout\; id="09"\; label="cover\; disc"\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">cover\; disc</figure-callout>}09\right)}=\frac{5}{7}$$

Notwithstanding the described example of the cover plate 09 with a total of four cams 13 (k = 4), the system is further cam 13, or more discs 14, z. B. on k = 5 cam 13 or on I = 5 rotatable discs 14 rotatable relative to each other. The system is z. B. expandable to the production of a 6-ply product. The cover plate 09 then has five cams 13, z. B. five individual discs 14, each with a cam 13, on. In this case, one of the previously described wide cams 13 can be replaced by two narrow cams 13. As with o. G. 2-ply and 3-ply product of the first and second modes of operation, the stepped transmission would drive the cover plate 09, d. H. when the collecting cylinder 01 makes one revolution, the cover plate 09 rotates 420 °. The cam pattern would have the following picture: The five cams 13 are provided in four successive angular ranges spaced apart by 60 °. The release trough 12 of the holding element 02 is "covered" in five revolutions and free in the sixth of the collecting cylinder 01. This results in a six-layered product in this mode. The forme cylinder 16 in this case has six print image sections in succession on the circumference.

Also deviating from the example described the cover plate 09 is the Application of the multi-part cover plate 09 with a plurality of circumferentially mutually distance-variable cam 13 also on cylinder 01 with less division, z. B. less than p = 7, z. For example, apply p ≥ 5. In this case, an associated with the high number of radially activatable cam overhead can be reduced and at the same time the number of possible cam pattern can be further increased. The cover plate 09 can then z. B. at least k equal to three such mutually spaced variable cam 13 have.

Of particular advantage, however, is the embodiment described with a seven-part cylinder 01 and a cover plate 09 with at least four variable-displacement cam 13. This is advantageous with an upstream form cylinder 16, which carries up to five, or even up to six print image sections in the circumferential direction or to wear is able.

wobei gilt r > q > r/2 mit r ungeradzahlig und ≥ 5, und vorzugsweise r = pIn a generalized manner can apply to a speed ratio V between the rotational speed of the p-shaped cylinder 01 and the speed of the cover plate 09 in at least one mode $V=\frac{\dot{\mathrm{n}}\left(\mathrm{cylinder}\mathrm{01}\right)}{\dot{\mathrm{n}}\left(\mathrm{<figure-callout\; id="09"\; label="cover\; disc"\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">cover\; disc</figure-callout>}\mathrm{09}\right)}\mathrm{=}\frac{\mathrm{q}}{\mathrm{r}}$

where r>q> r / 2 with r odd-numbered and ≥ 5, and preferably r = p

Preferably, the folder (with eg 7-part cylinder 01) with at least two speed ratios of different factor q is out of o. Quantity, e.g. B. with q = q1 = 6 and / or q = q2 = 4 and / or q = q3 = 5 (with q1 ≠ q2 ≠ 3), optionally operated or operated.

The described cover plate 09 is also applicable for folding blade, flap and Auswerfersysteme.

LIST OF REFERENCE NUMBERS

01

Cylinder, transport cylinder, folding blade cylinder, jaw cylinder, collecting cylinder

02

Tool, holding element, gripper, point needle row, folding flap

03

Tool, folding knife

04

control arm

05

-

06

follower roll

07

roller lever

08

Control disc, cam

09

cover disc

10

-

11

side frame

12

Trough, release trough

13

Section (raised), cams

13.x

Cam x, with x = 1 to k)

14

Disc, cam disc

14.y

Slice y, with y = 1 to I)

15

-

16

Printing cylinder, form cylinder

A

section

B

section

C

section

D

section

e

section

Claims (24)

1. Folding apparatus with a cylinder (01), which on its circumference has tools (02; 03) of one same type in succession on an odd number p of at least five (p ≥5)sections, as well as a cam profile (08) fixed to the frame for the control of a movement of these tools (02; 03) as well as a covering disc (09) rotating with respect to the cam profile (08) during operation as well as at least one disc roller (06) cooperating with these discs, the covering disc (09) being designed in a number of pieces and having a number of I (I > 1) discs (14) rotatable against one another, in particular cam discs (14), with in each case at least one raised section (13), in particular cams (13), on the circumference, characterized in that a drive is provided, by means of which the cover disc (09) is driven during operation in an operating type with a speed ratio r/q relative to the rotation speed of the cylinder (01), r > q > r/2 with r uneven and ≥ 5.
2. Folding apparatus according to Claim 1, characterized in that the cylinder (01) has a number of at least, in particular exactly, p = 7 tools (02; 03) of the same type, in particular retaining elements (02) or folding blades (03), in succession on its circumference.
3. Folding apparatus according to Claim 1, characterized in that r = p.
4. Folding apparatus according to Claim 1, characterized in that a number of cams (13), in particular all cams (13), of the cover disc (09) are arranged in a track common with respect to the descending contact roller (06).
5. Folding apparatus according to Claim 1, characterized in that a number of at least four, i.e. I ≥ 4, discs (14), in particular in each case having only one cam (13), are present.
6. Folding apparatus according to Claim 1, characterized in that the cover disc (09) is a driven in a rotatory manner by means of a multistage, in particular at least three-stage, switchable transmission (18).
7. Folding apparatus according to Claim 1, characterized in that at least a number of I-1 of the discs (14), in particular each of the discs (14), is driven by means of a differential that makes possible a torsional movement of the discs (14) relative to one another.
8. Folding apparatus according to Claim 1, characterized in that the speed of rotation of the cover disc (09) is readjustable at least between 7/5 and 7/6 of the speed of rotation of the cylinder (01).
9. Folding apparatus according to Claim 8, characterized in that the speed of rotation of the cover disc (09) is additionally adjustable to 7/4 of the speed of rotation of the cylinder (01).
10. Folding apparatus according to Claim 1, characterized in that in one operating type designated by "single collecting" the discs (14) are arranged relative to one another such that in the range of three angle ranges of the cover disc (09), spaced around 120° from one another, cams (13) are arranged on the circumference, and a fourth cam (13) is accommodated either in a cover with one of the three cams (13) spaced around 120° or else in an inoperative overhauling region.
11. Folding apparatus according to Claim 10, characterized in that the cover disc (09) is driven in the operating type "single collecting" with a speed of rotation ratio 7 to 6 in relation to the speed of rotation of the cylinder (01).
12. Folding apparatus according to Claim 1, characterized in that in an operating type designated by "single collecting" the discs (14) are arranged relative to one another in such a way that four cams (13) are arranged relative to one another such that cams (13) are arranged in two groups of two each angular ranges of the cover disc (09) displaced from one another in pairs by 180°, the two groups being displaced relative to one another by 60°.
13. Folding apparatus according to Claim 12, characterized in that the cover disc (09) in the operating type "double collecting" is driven with a speed of rotation ratio of 7 to 6 in relation to the speed of rotation of the cylinder (01).
14. Folding apparatus according to Claim 1, characterized in that in an operating type designated by "triple collecting" the discs (14) are arranged relative to one another such that in the range of three angles spaced around 90° to one another following one another cams (14) are provided, and a fourth cam (13) is displaced either congruent with one of the three cams (13) spaced around 90° or else in an inoperative overhauling region.
15. Folding apparatus according to Claim 14, characterized in that the cover disc (09) in the operating type "triple collecting" is driven with a speed of rotation ratio of 7 to 4 in comparison to the speed of rotation of the cylinder (01).
16. Folding apparatus according to Claim 1, characterized in that in an operating type designated by "quadruple collecting" the discs (14) are arranged relative to one another such that in the range of four angle ranges spaced by 72° relative to one another following one another cams (13) are provided.
17. Folding apparatus according to Claim 16, characterized in that the cover disc (09) in the operating type "quadruple collecting" is driven at a speed ratio of 7 to 5 in comparison to the speed of the cylinder (01).
18. Folding apparatus according to one or more of Claims 1 to 9, characterized in that a multiplicity of the operating types "single collecting" according to Claim 10, "double collecting" according to Claim 12, "triple collecting" according to Claim 14 and "quadruple collecting" according to Claim 16, but in particular at least the two manners of operation "triple collecting" according to Claim 14 and "quadruple collecting" according to Claim 16, are optionally adjustable.
19. Printing press having a folding apparatus according to one or more of Claims 1 to 9 and having a forme cylinder (16) upstream of the folding apparatus, characterized in that the forme cylinder (16) is designed for the recording of up to five, in particular up to six, print image sections arranged in succession on the circumference.
20. Printing press having a folding apparatus according to one or more of Claims 1 to 9 and having a forme cylinder (16) upstream of the folding apparatus, characterized in that the folding apparatus is operated in the operating type "single collecting" according to Claim 10 and/or 11, and in that the forme cylinder (16) carries a number of m = 2 print image sections in succession on its circumference and/or the cylinder (01) of the folding apparatus rotates with a rotation of the forme cylinder (16) around two of its p, in particular p = seven, sections.
21. Printing press having a folding apparatus according to one or more of Claims 1 to 9 and having a forme cylinder (16) upstream of the folding apparatus, characterized in that the folding apparatus is operated with an arrangement of the discs (14) according to Claim 10, but in an operating type designated as the operating type "double production with single collecting", and in that the forme cylinder (16) carries a of number m = 4 print image sections in succession on its circumference and/or the cylinder (01) of the folding apparatus rotates sections with a rotation of the forme cylinder (16) around two of its p, in particular p = seven, sections.
22. Printing press having a folding apparatus according to one or more of Claims 1 to 9 and having a forme cylinder (16) upstream of the folding apparatus, characterized in that the folding apparatus is operated in the operating type "double collecting" according to Claim 12 and/or 13, and in that the forme cylinder (16) carries a number m = 3 print image sections in succession on its circumference and/or the cylinder (01) of the folding apparatus rotates sections with a rotation of the forme cylinder (16) around three of its p, in particular p = seven, sections.
23. Printing press having a folding apparatus according to one or more of Claims 1 to 9 and having a forme cylinder (16) upstream of the folding apparatus, characterized in that the folding apparatus is operated in the operating type "triple collecting" according to Claim 14 and/or 15, and in that the forme cylinder (16) carries a number m = 4 print image sections in succession on its circumference and/or the cylinder (01) of the folding apparatus rotates sections with a rotation of the forme cylinder (16) around four of its p, in particular p = seven, sections.
24. Printing press having a folding apparatus according to one or more of Claims 1 to 9 and having a forme cylinder (16) upstream of the folding apparatus, characterized in that the folding apparatus is operated in the operating type "quadruple collecting" according to Claim 16 and/or 17, and in that the forme cylinder (16) carries a number m = 5 print image sections in succession on its circumference and/or the cylinder (01) of the folding apparatus rotates sections with a rotation of the forme cylinder (16) around five of its p, in particular p = seven, sections.

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