Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H45/00—Folding thin material
  • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
  • B65H45/16—Rotary folders
  • B65H45/162—Rotary folders with folding jaw cylinders
  • B65H45/165—Details of sheet gripping means therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H45/00—Folding thin material
  • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
  • B65H45/16—Rotary folders
  • B65H45/162—Rotary folders with folding jaw cylinders
  • B65H45/168—Rotary folders with folding jaw cylinders having changeable mode of operation

Definitions

• the invention relates to folders according to the preamble of claim 1 or 24.
• Such a folding apparatus has a cylinder called a 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 held on the cylinder printed product to press out of the interior of the cylinder against the printed product and to press it in a jaw of a cooperating with the folding blade or collecting cylinder jaw cylinder.
• 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.
• 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.
• the control cam is formed by two discs mounted coaxially with the cylinder, called a cam and a cover disc, which are scanned simultaneously by the feeler rollers.
• the stationary cam has one Trough into which a touch roller can dip.
• 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.
• 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.
• n max 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.
• Abdecknocken 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 cover cams in order 30 °, 15 ° and 45 °.
• the invention has for its object to provide folders.
• the number of tools on the folding blade cylinder of the folder is only five, instead of seven in the known folder, so that it is possible with the same side length of the processed products to reduce the diameter of the folding blade to five-sevenths of the conventional value.
• the folding blade cylinder has two groups with the same number of tools, in particular a group of holding tools such as in particular grippers or puncture strips, and a group of folding blades.
• Each group of tools is expediently assigned its own cam disk and cover disk. Curves and shrouds of the various groups can be arranged on opposite end faces of the folding blade cylinder or on a same end face of the folding blade. In a folding blade cylinder of very large width can also be assigned to each group of tools in each case two cams and two cover plates, one on each end face of the folding blade. In order to allow adaptation to different page numbers of the printed products to be folded, the tools of the first group should have on the circumference of the cylinder with respect to the second group own cams and shrouds.
• the number of Abdecknocken in the first group is preferably exactly four, and the angular distance between them is alternately 60 ° and 120 ° (working position).
• all these four cover cams are active, this allows for a rotary speed of the cover disc of 5/6 the rotational speed of the folding blade two-axis collection, with two cylinder revolutions of the control lever of a tool active Abdecknocken and the third revolution, the 120 "-space between two Abdecknocken If of the four cover cams of the first group two diametrically opposed active and the other are inactive, so at a rotational speed of the cover plate of 5/4 the rotational speed of the cylinder single-collective operation is possible after previous phase adjustment, since the Abdecknocken now faster than the folding blade cylinder rotates.
• the second group preferably comprises exactly three cover cams, which consequently must be arranged at a distance of 90 °, 90 ° and 180 ° (working position) from each other. If all of these cover cams are active, triple collection operation is possible at 5/4 turning speed of the shrouds to the hemming cylinder, if only the two diametrically opposed cover lobes of the second group are active, they also enable single accumulation operation.
• the cover sheet system at Use of this group of cover cams to be adjusted to the folding blade cylinder. Phase adjustment. Because with a cover disk speed of 5/6, the cover cam is slower than the folding blade cylinder at a cover disk speed of 5/4 but faster. This phase adjustment is done by the cover sheet system by means of a differential gear in the drive train of the cover plate to the position of the folding blade in production switching, are rotated.
• Fig. 1 is a partial perspective view of a folding blade according to the invention
• Figure 2 is a schematic frontal view of the cam and shroud of the cylinder controlling its gripper in a non-random mode configuration
• Fig. 3 is a view similar to Figure 2 view in single-collection operation.
• Fig. 4 is an analogous view in dual-axis operation
• Fig. 5 is an analogous view in triple collection operation
• FIGS. 6 to 9 are each views analogous to those of FIGS. 2 to 5 according to a second embodiment of the invention.
• Fig. 1 shows a schematic perspective view of an end portion of a cylinder 01, for. B. folding blade cylinder 01 for a folder.
• the folder comprises, in addition to the folding blade 01 a cross cutter, the fed strand of printed material webs, z. B. paper webs decomposed into individual printed products, and a belt conveyor, which accelerates the separated from the cross cutter printed matter on the peripheral speed of the folding blade 01 and at its peripheral surface in the direction of arrow A is approaching. Since the cross cutter and belt conveyor mechanism are known per se, they are not shown in FIG. 1 and will not be described in further detail here.
• the peripheral surface of the folding blade 01 is formed of two groups of five segments, wherein the segments of the first group each have a tool 02, z. B. a gripper 02 wear (of which in Fig. 1 only one is partially shown) and the other each have a slot 03, from which a folding blade is extendable to a held on the folding blade 01 printed product in the jaw of a likewise not introduced, because known jaw cylinder introduce.
• the phase angle of the two groups of segments on the circumference of the folding blade 01 is adjustable in order 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 controlled in each case by a control arm 04, which carries a follower roller 06 at an end remote from the gripper 02.
• the follower roller 06 is acted upon by a spring against the circumference of a shown in FIG. 1 partially cut away, stationary cam 07. Between this and the folding blade 01 a coupled to the folding blade 01 rotatable cover plate 08 is arranged.
• the stationary cam 07 has a substantially circular circumference with two Hollows 16; 17, referred to as Nachgreif trough 16 or 17 release trough.
• the Nachgreifmulde 16 controls when the sensing 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, that is, in the Nachgreifmulde 16 a follower roller 06 is rolled over in any type of production by a Abdecknocken.
• the release trough 17 (not visible in FIG. 1) controls the movement of the gripper 02 during the transfer of a printed product to the jaw cylinder by means of a folding knife, depending on the desired type of production in cooperation with the gripper cover disk.
• a gripper system and its associated folding blade system are thus 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 Falzmesserdeck infrastructure and vice versa.
• the cover plate 08 is composed of an inner cam ring 09, two groups of Abdecknocken 11; 12 and a sake of clarity not shown frame in which the Abdecknocken 11; 12 are each pivotable about an axis 13 and spring-loaded against the peripheral surface of the cam ring 09.
• the cam ring 09 is relative to the frame and the Abdecknocken 11; 12 rotatable to different configurations of Abdecknocken 11; 12 set in each of which certain of them rest on a cam 14 of the cam ring 09 or between two cams 14 engage.
• the cover cam 11; 12 each have arcuate outer sides 18, which in the active state of a Abdecknockens 11; 12 are at the level of the circumference of the cam 07 and the penetration of a follower roller 06 in a trough 16; 17 of the cam 07 can prevent.
• Each pair of circles on the circumference of the cam 07 connected by a double arrow illustrate the range of motion of the touch rollers 06 on the circumference of the cylinder 01 for adaptation to different lengths of the printed products to be folded.
• the cam ring 09 carries in each case, based on the drawn 0 "-direction, a wide cam 1 ⁇ between 110 ° and 125 °, a narrow cam 14, 14 3 at 95 ° and 40 °, a wide cam 1 * between 10 ° and -15 °, narrow cams 14 > ; 14 6 at -65 ° and -85 ° and a wide cam 14t between -135 ° and -125 ".
• the cam ring 09 is rotated in the clockwise direction by approximately 20 ° in comparison to FIG. 2, so that the cover cams 11 ⁇ 12 2 ; 11 4 on a cam 14 ⁇ 14 4 ; 14 7 of the cam ring 09 rest, ie are in their active position in which they are able to prevent the immersion of a follower roller 06 in the release recess 17.
• the folding blade cylinder 01 rotates in the counterclockwise direction, ie the contact rollers 06 run counterclockwise on the cam 07.
• the rotational speed of the cover plate 08 is 5/6 of the rotational speed of the folding blade 01, so that with each complete revolution of the folding blade 01, the cover plate 08 falls back by 60 °.
• the sensing roller 19 hits the release trough 17 in turn on the akti en cover cam 11 4 , the inactive Abdecknocken 11 3 , the active Abdecknocken 12 2 and finally the inactive Abdecknocken 11 2 , bringing the cycle closes. Every other revolution, a collected printed matter is released; this corresponds to the single collection operation.
• the cam ring 09 is rotated back in comparison to Fig. 3 by about 10 °, so that all Abdecknocken 11 1 to 11 of the first group in the active position and the second group of Abdecknocken 12- ⁇ to 12 3 are in the inactive position.
• the rotational speed of the cover plate 08 is the same as in the case of Fig. 3.
• the sensing roller 19 hits the active Abdecknocken 11 2 , one revolution later on the also active Cover cam 11 and then to the gap 21 between the Abdecknocken 11 1 and 11 4 , so that the collected product is released.
• it encounters the active cover cam 11 4 , the active cover cam 11 3 and the inactive cover cam 12 2 , whereupon in turn the collected product is released. This corresponds to the two-axle collection operation.
• the cover cam 12 1 blocks the immersion of the follower roller 19 into the release recess 17, in the subsequent revolutions the cover cam 12 2 , 12 3 blocks, until finally during the fourth rotation the follower roller 19 locks on the recess 17 encounters the gap 21 and releases the collected product ht the triple collection.
• FIG. 6-9 An alternative way to control the various collection modes is shown in Figs. 6-9.
• the arrangement and shape of Abdecknocken 11; 12 is here the same as in FIGS. 1 to 5, only the distribution of the cam 14 on the cam ring 09 is in Figs. 6 to 9 a different than in Figs. 1 to 5.
• a narrow cam 14-) is at approx 115 °, a wide cam 14 from 95 ° to 85 °, narrow cams 14; 14; 14 5 at about 45 °, 5 ", -65 °, a wide cam from about -85 ° to -95 ° and a narrow cam at about -135 °
• Fig. 6 are as in Fig. 2 all Cover cam 11 ⁇ to 11 4 , 1!
• the Abdecknocken 12- ⁇ 12 3 are active, and the rotational speed of the cover plate 08 is 5/4 the rotational speed of the folding blade 01.
• the Abdecknocken 12- ⁇ prevents immersion of the sensing roller 19 in the release recess 17th ; one turn later, the feeler roller 19 hits the inactive Abdecknocken 12 2 and releases the printed product; again one revolution later, it hits the active cover cam 12 3 so that it is collected, and on the subsequent revolution, it hits the gap 21 and releases.
• this principle is also applicable to control a follower gripper on a jaw cylinder 01.
• the cylinder 01 can also have three or seven sections, ie three, five or seven tools 02, in particular gripper 02 or puncture strips with puncturing needles. Have folding blades or jaws.

Landscapes

• Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
• Control And Other Processes For Unpacking Of Materials (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)
• Supplying Of Containers To The Packaging Station (AREA)

Applications Claiming Priority (2)

Publications (2)

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ID=34965164

Family Applications (1)

Country Status (6)

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• 2004
  • 2004-04-26 DE DE102004020305A patent/DE102004020305A1/de not_active Withdrawn
• 2005
  • 2005-04-13 WO PCT/EP2005/051634 patent/WO2005102889A1/fr active IP Right Grant
  • 2005-04-13 DE DE502005005471T patent/DE502005005471D1/de active Active
  • 2005-04-13 AT AT05733616T patent/ATE409163T1/de not_active IP Right Cessation
  • 2005-04-13 US US11/587,150 patent/US7513860B2/en not_active Expired - Fee Related
  • 2005-04-13 EP EP05733616A patent/EP1742864B1/fr not_active Not-in-force
  • 2005-04-13 JP JP2007508900A patent/JP2007534575A/ja active Pending

Non-Patent Citations (1)

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