EP0586876B1 - Vorrichtung zur kontrollierten Beseitigung von Abfall-Stücken von Bedruckstoffen - Google Patents

Vorrichtung zur kontrollierten Beseitigung von Abfall-Stücken von Bedruckstoffen Download PDF

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Publication number
EP0586876B1
EP0586876B1 EP93112461A EP93112461A EP0586876B1 EP 0586876 B1 EP0586876 B1 EP 0586876B1 EP 93112461 A EP93112461 A EP 93112461A EP 93112461 A EP93112461 A EP 93112461A EP 0586876 B1 EP0586876 B1 EP 0586876B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
cutting
cutters
suction
chambers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93112461A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0586876A1 (de
Inventor
Peter Gamperling
Richard Mack
Rainer Klenk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0586876A1 publication Critical patent/EP0586876A1/de
Application granted granted Critical
Publication of EP0586876B1 publication Critical patent/EP0586876B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/265—Journals, bearings or supports for positioning rollers or cylinders relatively to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/62—Folding-cylinders or drums
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/207—By suction means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2183—Product mover including gripper means
    • Y10T83/2185—Suction gripper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool

Definitions

  • the invention relates to a device with a cutting cylinder and means for the controlled removal of waste pieces of printing materials.
  • DE-PS 1 19 48 75 discloses an apparatus for the appropriate feeding of paper sheets to a blank processing machine.
  • the suction element designed as a suction drum comprises a chamber that is permanently under suction and a second suction chamber that can be controlled under suction.
  • the suction air is applied to the front of the suction drum.
  • the jacket broken through the individual bores rotates together with the drum; Blowing air is not provided on the jacket of the drum.
  • US 4,407,870 shows a cutting device for the continuous cutting and removal of thin strips of a printed web.
  • the strip which is separated from a pair of knives working together with a lower knife, is sucked in by negative pressure and reaches a central bore of the cutting cylinder, from which it is subsequently removed.
  • a disadvantage of this device is the fact that it requires a large negative pressure volume in order to convey the strip into the interior of the cylinder. Furthermore, this device has limits with regard to the peripheral speed, since the centrifugal forces which occur at high peripheral speeds and act on the strip must be additionally compensated for by the vacuum in the channel. The conveying paths to the inside of the cutting cylinder are too long for high speeds.
  • a stripping cylinder comprises a stationary inner cylinder, which is provided with essentially radial air-impermeable partition walls, and a rotatable outer cylinder surrounding it coaxially.
  • the chambers formed by the partitions are connected to a suction pump or to a pressure pump, the partitions being provided with seals which touch and seal the inner wall of the outer cylinder.
  • EP 0 468 254 A2 relates to a cross cutter for material webs provided with printed images.
  • a pair of parallel knives is arranged on a knife roller; this works together with a stationary counter knife.
  • Suction and blowing openings are arranged between the knives and can be acted upon alternately with negative pressure and blowing air via a valve control depending on the rotary position of the knife roller.
  • a waste strip cut off during cross cutting is held under vacuum between the knives by the suction and blowing openings and transported to a point where it is blown off by means of blown air and discharged by a suction hood arranged above the knife roller.
  • the valve control for switching between blown air and suction air is arranged on the front side of the knife roller and has rotatably offset inlets and outlets that extend from the suction and blower openings Channels in the connections connected to the knife roller are swept.
  • the object of the invention is to reliably detect waste pieces of printing materials during and after the cut, regardless of the specific paper weight, and to keep the air volumes required for this to be small.
  • the cylinder axis can be variably fixed in its rotational position by a torque arm. On the one hand, this allows a defined position of the cylinder axis to be defined, which it also maintains during production. On the other hand, sensitive twisting of the cylinder axis can be carried out after loosening the clamping screw on the torque arm. In this way one can Adjustment of the chamber position between the cylinder axes and the rotatably mounted cylinder jacket.
  • the chambers extend essentially over the length of the cutting cylinder parallel to the cylinder axis. This results in an even application of pressure to the surface of the cylinder jacket both by blown air and with a vacuum for handling waste strips of various substrate thicknesses. Starting with thin, fluttering papers from 40 g / m2 to thicker materials of around 200 g / m2.
  • the chambers are delimited by at least one sealing strip which can be fixed in the circumferential direction on the cylinder axis.
  • the length of the chambers can be shortened or extended, depending on the requirements.
  • the chambers form circular arc-shaped sectors on the cylinder axis in the circumferential direction, which favors a simple and inexpensive blown air supply or vacuum application through bores in the cylinder axis.
  • the cylinder jacket is arranged such that it can be driven separately via bearings on the cylinder axis.
  • the cylinder jacket on the cylinder axis is driven by a pulley arranged on a cylinder journal.
  • This drive configuration allows the rotating cylinder jacket to be used as a switching element for changing the types of air with which the bores on the circumference of the cylinder jacket are applied. Valves or throttles can be completely dispensed with, since the blown air chamber and the suction air chamber are permanently pressurized and the air changeover is only effected by the rotation of the cylinder jacket on the cylinder axis, which receives the sealing strips for chamber separation.
  • the pairs of knives consist of one-piece knives which extend in the axial direction over the entire length of the cylinder jacket. This guarantees an even cut and easier adjustment during the presetting.
  • a suction device takes over pieces of waste from the cylinder jacket of the cutting cylinder.
  • the suction device supports the takeover of the waste strip expelled from the cylinder jacket by the action of blowing air. Since the centrifugal force also acts on them, there is a safe transfer into the suction device.
  • the contour of the blown air chamber in the circumferential direction on the cylinder axis advantageously coincides with the region to which the suction opening of the suction device is located on the circumference of the cutting cylinder.
  • Fig. 1 an operator-side storage of a cutting cylinder is shown.
  • a cutting cylinder 1 consists of a cylinder jacket 2, which is pierced by at least two rows of bores 3 running parallel to the axis and a cylinder axis 4.
  • a cylinder journal 5 is connected to the cylinder jacket 2 by screws 6.
  • a bearing 7 is fixed in its axial position on the cylinder axis 4 by a locking ring 8 and a spacer ring 9.
  • a cone 10 is provided, on which a roller bearing 14 is seated, which in turn by Locknut 12 and locking plate 11 is fixed in position on the cone 10.
  • the cylinder jacket 2 is rotatably received in a bushing of the side wall 24 via the cylinder journal 5, the cone 10 and the roller bearing 14, while the cylinder axis 4 passing through the cylinder journal 5 and the cylinder jacket 2 does not rotate.
  • the roller bearing 14 bears against a ring 13 which is supported on a shoulder of the bearing journal 5.
  • the ring 13 or ring 30 in FIG. 2 used for sealing is enclosed by the cylinder-side bearing housing 15, which is held in a socket in the side wall 24 by means of screws 16.
  • the cover 17 is connected to the end face of the cylinder journal 5 by screws.
  • the cover 17 is enclosed by a bearing housing 18 which is fastened on the end face in a bushing in the side wall 24. Accordingly, when the cylinder jacket 2 rotates, both the ring 13 and the cover 17 rotate relative to the side-wall-fixed bearing housings 15 and 18, from which they are separated by narrow air gaps.
  • a torque support 19 is attached to the side wall 24, which holds the cylinder axis 4 at rest by means of a clamp.
  • the torque arm 19 surrounds the cylinder axis 4 in the area in which the connecting pieces for the blown air supply line 21 and the suction air line 23 are located.
  • the cylinder jacket 2 is rotatable on the cylinder axis 4 by a bearing 7 arranged on the drive-side end of the cylinder axis 4.
  • a cylinder pin 29 is connected to the cylinder jacket 2 by screws 6.
  • the cone 10 is fastened, on which a roller bearing 14 is received by the locking plate 11 and the lock nut 12.
  • the outer ring of the roller bearing 14 is held in position by the bearing housings 15 and 18, which are each received via screws 16 in the side wall 28 on the drive side.
  • a drive wheel 35 initiating the drive and a belt pulley 32 are rotatably mounted on the extension of the cylinder journal 29.
  • the drive wheel 35 and the pulley 32 are rotatably received by a key 34.
  • the drive wheel 35 and the pulley 32 can be removed after removing a cover 36 from the cylinder journal 29.
  • FIG 3 shows a cross section through the cylinder jacket and cylinder axis of a cutting cylinder.
  • the cylinder axis 4 is penetrated by a blowing air bore 20 extending axially to approximately the center of the cutting cylinder 1 and a suction air bore 22.
  • 4 sealing strips 42 are fastened to the circumference of the cylinder axis by screws, through which Position on the circumference of the cylinder axis 4, a pressure chamber 27 and a suction chamber 26 are limited.
  • These chambers are circumferentially bounded by the inside of the cylinder jacket 2, which in turn is penetrated by the rows of bores.
  • the knives 41 shown here are formed in one piece and can be adjusted by means of adjusting screws 40 such that the positions of the cutting edges of the knives 41 in relation to the outer surface of the cylinder jacket 2 or a machine-fixed lower knife can be adjusted precisely. It would therefore be conceivable to turn these adjusting screws 40 by servomotors provided in the cylinder jacket 2 in order to be able to make this setting.
  • Four blades can be formed on the blades 41, which are designed here with a rectangular cross-section, so that the service life of the blades 41 is favorably influenced.
  • the rows of bores 3 alternately come into contact with the pressure chamber 27 or with the suction chamber 26, which results in alternating air switching from suction to blown air and vice versa during the rotation of the cylinder jacket 2 .
  • the sealing strips 42 By changing the positions of the sealing strips 42 which delimit the chambers 26 and 27 the areas of action of suction and blown air are of course adapted to individual requirements, furthermore the sealing strips 42 can be provided with resilient underlays in order to achieve a sealing which follows itself.
  • FIG. 4 shows the cylinder jacket 2, which is mounted on the cylinder axis 4 and can be driven separately.
  • the suction chamber 26 and the pressure chamber 27 are separated from one another by schematically illustrated sealing strips 42.
  • the cylinder axis 4 is traversed by a blown air bore 20 and a suction air bore 22, which are permanently acted upon.
  • the holes 3 assigned to the pair of knives 37 are connected to the suction chamber 26.
  • the suction hood 43 arranged above the cutting cylinder 1 sucks off the waste strip 45, so that it is reliably removed from the cylinder jacket 2.
  • the suction hood 43 advantageously extends over a region corresponding to the shape and the course of the pressure chamber 27; this ensures maximum conveying and handling security of the waste strip 45.
  • the pair of knives 37 opposite the pair of knives 37 leading the waste strips 45 cuts a waste strip 45 out of the printing material web 44 at the same time.
  • the bores 3 of the lower pair of knives 37 are connected to the suction chamber 26 of the cylinder axis 4 and the next material strip 45 to be separated is sucked in.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Paper (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Details Of Cutting Devices (AREA)
EP93112461A 1992-09-05 1993-08-04 Vorrichtung zur kontrollierten Beseitigung von Abfall-Stücken von Bedruckstoffen Expired - Lifetime EP0586876B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4229699 1992-09-05
DE4229699A DE4229699C2 (de) 1992-09-05 1992-09-05 Vorrichtung zur kontrollierten Beseitigung von Abfall-Stücken von Bedruckstoffen

Publications (2)

Publication Number Publication Date
EP0586876A1 EP0586876A1 (de) 1994-03-16
EP0586876B1 true EP0586876B1 (de) 1996-03-27

Family

ID=6467312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112461A Expired - Lifetime EP0586876B1 (de) 1992-09-05 1993-08-04 Vorrichtung zur kontrollierten Beseitigung von Abfall-Stücken von Bedruckstoffen

Country Status (6)

Country Link
US (1) US5419224A (zh)
EP (1) EP0586876B1 (zh)
JP (1) JPH06170791A (zh)
CN (1) CN1036903C (zh)
AT (1) ATE135948T1 (zh)
DE (2) DE4229699C2 (zh)

Cited By (1)

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DE102006027124A1 (de) * 2006-06-12 2007-12-13 Heidelberger Druckmaschinen Ag Abfallgebläse für eine Bogenstanz- und Prägemaschine

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US8047107B2 (en) * 2007-12-31 2011-11-01 Pitney Bowes Inc. Air temperature normalization in paper cutting system
DE102008035108A1 (de) * 2008-07-28 2010-02-04 Heidelberger Druckmaschinen Ag Bogenfalzmaschine
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DE102012002110B4 (de) * 2012-02-06 2019-08-08 David Oliver Rosas Wolf Vorrichtung zur Stanzbearbeitung von bogenförmigen Substraten
CN104441051B (zh) * 2013-09-25 2017-04-12 天津长荣印刷设备股份有限公司 具有抓取边缘刮擦器的模切机
DE102016226167A1 (de) 2016-05-30 2017-11-30 Koenig & Bauer Ag Vorrichtung und Verfahren zum Behandeln von Substraten
IT201700081301A1 (it) * 2017-07-18 2019-01-18 Tecnau Srl Equipaggiamento e metodo di taglio trasversale per strisce di rifilatura
CN107351153B (zh) * 2017-09-15 2019-03-08 陈风春 地源热泵管切割装置
US10857690B2 (en) * 2018-09-11 2020-12-08 The Procter & Gamble Company Method and apparatus for adjusting and maintaining a position of a cutting surface of a perforating apparatus
CN114226351B (zh) * 2021-08-16 2024-01-30 重庆大学 一种复合材料干切加工复杂多工况自适应除尘装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006027124A1 (de) * 2006-06-12 2007-12-13 Heidelberger Druckmaschinen Ag Abfallgebläse für eine Bogenstanz- und Prägemaschine
CN101088724B (zh) * 2006-06-12 2011-03-02 海德堡印刷机械股份公司 页张模切和压痕机

Also Published As

Publication number Publication date
JPH06170791A (ja) 1994-06-21
EP0586876A1 (de) 1994-03-16
US5419224A (en) 1995-05-30
DE4229699C2 (de) 1995-09-21
DE59302032D1 (de) 1996-05-02
ATE135948T1 (de) 1996-04-15
CN1084112A (zh) 1994-03-23
CN1036903C (zh) 1998-01-07
DE4229699A1 (de) 1994-03-10

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