EP1354835A1 - Dispositif d'entraínement pour une lame de pliage - Google Patents

Dispositif d'entraínement pour une lame de pliage Download PDF

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Publication number
EP1354835A1
EP1354835A1 EP02005988A EP02005988A EP1354835A1 EP 1354835 A1 EP1354835 A1 EP 1354835A1 EP 02005988 A EP02005988 A EP 02005988A EP 02005988 A EP02005988 A EP 02005988A EP 1354835 A1 EP1354835 A1 EP 1354835A1
Authority
EP
European Patent Office
Prior art keywords
folding
sword
drive
sheet
folding sword
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.)
Granted
Application number
EP02005988A
Other languages
German (de)
English (en)
Other versions
EP1354835B1 (fr
Inventor
Eberhard Krieger
Erich Schauer
Martin Sailer
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.)
MBO Postpress Solutions GmbH
Original Assignee
Maschinenbau Oppenweiler Binder GmbH and Co KG
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 Maschinenbau Oppenweiler Binder GmbH and Co KG filed Critical Maschinenbau Oppenweiler Binder GmbH and Co KG
Priority to DE50203335T priority Critical patent/DE50203335D1/de
Priority to EP20020005988 priority patent/EP1354835B1/fr
Publication of EP1354835A1 publication Critical patent/EP1354835A1/fr
Application granted granted Critical
Publication of EP1354835B1 publication Critical patent/EP1354835B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H45/18—Oscillating or reciprocating blade folders

Definitions

  • the invention relates to a folding sword drive device for a folding machine according to the preamble of claim 1.
  • a folding sword drive device for a folding machine in which a positively guided folding sword is connected via connecting links to two swivel links which are pivoted back and forth synchronously for driving the folding sword.
  • the speed of the folding blade has a sinusoidal shape, as shown in a path-time diagram in FIG. 5.
  • s 1 denotes the upper end position of the folding sword
  • s 2 the position of the folding sword when it hits the sheet
  • s 3 the lower reversal point of the folding sword.
  • the speed of the folding blade decreases before the lower turning point is reached.
  • the sheet is gripped by the folding rollers rotating at high speed and subtracted from the folding sword. Due to the slow return stroke of the folding sword, the sheet comes into contact with the folding sword again.
  • perforated sheets in particular, can be distorted when they are transferred to the folding rollers and can therefore be inaccurately folded during further processing within the folding machine.
  • a pneumatically controlled Folding sword drive device which is guided in a vertical direction Has drive rod, at the lower end of a folding sword is attached.
  • Drive rod is attached to a reciprocating piston, which is guided in a cylindrical housing is.
  • the drive rod kept in an upper setting.
  • the space of the housing below the piston is pressurized, so that the piston with drive rod and folding blade moves down.
  • the course of the speed of the drive rod and the folding blade is one pneumatic drive not controllable; this leads to a hard one in particular Impact in the end positions.
  • the invention has for its object a structurally simple means Folding sword drive device to create an exact folding of a sheet the folding sword ensures.
  • the sheet is slow (approximately zero) detected to tear the sheet when hitting the folding sword to prevent. After the sheet has been caught by the folding sword, the Sheets are always safely guided until they leave the folding blade. This is only at guaranteed a sword speed that is adapted to the folding roller speed is because only then is the contact between the bow and folding sword throughout Hubes remains. When the sheet is handed over, the sheet speed is that Sword speed and the folding roller circumferential speed also the same.
  • the folding sword immediately after detection of the sheet from the folding rollers is suddenly withdrawn, the folding quality is significantly increased. In this case it surpasses the high friction between sheets and folding rollers in connection with the high paper speed (Impulse) by far the low friction of the sheet with the folding sword during the backward movement, so that a safe sheet guidance and transfer is guaranteed.
  • a voice coil drive as a lifting drive makes it possible to change the speed to control the folding sword as desired, with a high dynamic is achieved with little and simple construction.
  • Voice coil drive systems are based on the technology of a loudspeaker.
  • On Voice coil drive or voice coil actuator is a two-pole, non-commutated drive mechanism with limited way. It has a linear characteristic, a high repetition and positioning accuracy and is free of hysteresis.
  • the voice coil drive has has a low electrical and mechanical time constant and has a high output in relation to its mass and volume.
  • a voice coil actuator consists of two components, a coil former has a non-magnetic support member on which a coil is wound, and one Magnetic body with a magnetic circuit made of permanent magnets. In the installed state the coil is in the air gap of the magnetic circuit. One element is mechanical attached to allow movement along the force vector. If a coil current flows, a force is generated. Direction and amplitude are determined by the current and direction determined.
  • the power and speed of the voice coil actuator is so high that it is controlled slower phases are possible. The required total time is nevertheless achieved.
  • the folding blade drive device shown in FIG. 1 has a mounting plate 3 on, by means of which the folding sword drive device is fixed to a folding machine can be.
  • the folding sword drive device also has a housing 30, which comprises a cylindrical housing wall 12 which passes through on its upper end face an upper housing cover 8 and on its lower end face by a lower housing cover 17 is closed.
  • the housing 30 is about a horizontal pivot axis 2 pivotable, which passes through the upper housing cover 8.
  • the inclination of the Housing 30 can be screw 5 passing through the mounting plate 3 can be set, which is in threaded engagement with the lower housing cover 17.
  • Between the lower housing cover 17 and the mounting plate 3 is an elastic element 4 arranged by a bias on the housing 30 in one of the mounting plate 3 opposite direction is exercised.
  • the height of the housing 30 is about one Threaded rod 1 adjustable
  • a drive rod 11 passes coaxially through the housing 30.
  • the drive rod 11 is surrounded in its upper area by a cylindrical spacer 7, which passes through a central through opening 32 in the upper housing cover 8 and is guided in this.
  • the lower end of the drive rod 11 is in a central through opening 34 guided in the lower housing cover 17.
  • a coil former 9 is fastened to the underside of the upper housing cover 8, which is formed by a non-magnetic support element around which a coil is wound is.
  • the coil former 9 has a central through opening 40 through which the spacer bushing 7 and drive rod 11 pass through.
  • Below the bobbin 9 is In the housing 30, a magnetic body 13 is arranged, which consists of a magnetic circuit made of permanent magnets is formed.
  • the drive rod 11 passes through a central through opening 42 in the magnetic body 13, the outer diameter of the drive rod 11 in this area essentially the inner diameter of the through opening 42 corresponds.
  • the drive rod 11 has one Section 44 with an enlarged diameter on which the magnetic body 13 with its bears against the lower end face, between the lower end face of the magnet body 13 and the section 44 a shim 14 is arranged.
  • Section 44 of the drive rod 11 is in the area between the shim 14 and the top of the lower housing cover 17 surrounded by a coil spring 15 which the magnetic body 13 and the drive rod 11 pretensioned so that the folding sword 18 in de-energized Condition can not fall ..
  • the upper end face of the magnetic body 13 is applied the lower end of the spacer 7, the magnet body by tightening a nut 6 which is threadedly engaged with the upper end of the drive rod 11 is fixed between the spacer 7 and the section 44.
  • the outer diameter of the magnetic body 13 is slightly smaller than the inner diameter of the housing wall 12.
  • the magnetic body 13 has a Ring flange 38, whose outer diameter is essentially the inner diameter corresponds to the housing wall 12 ..
  • the outer diameter of the coil body 9 corresponds essentially to the outer diameter of the magnetic body 13.
  • the bobbin 9 and the upper section of the magnetic body 13 surrounded by an annular upper end position damping 10, to which the flange 38 abuts.
  • an annular lower end position damper 16 attached to the shim 14 strikes when the drive rod 11 is moved into its lowermost end position.
  • a force is generated by applying a current to the coil former 9, wherein the direction and the amplitude is determined by the current strength and direction.
  • the folding roller speed and the sheet speed ideally up to Paper delivery right away.
  • FIG 3 shows the theoretical determination of the speed v sch of the folding blade 18 provided that the speed v p of the sheet 20 and the tangential speed of movement v fw of the folding rollers 22, 24 are the same.
  • the speed v sch is determined from a triangle of vectors.
  • the vertically directed vector v sch is appended to the top of the horizontal vector of the speed v p .
  • the length of the vertical vector v sch up to its intersection with the tangent to the folding roller through the beginning of the vector v p gives the magnitude of the speed v sch .
  • FIG. 4 An optimal time-path diagram for the movement of the folding sword is shown in FIG. 4.
  • the folding sword is moved at a relatively high speed between positions s 1 and s 2 , the folding sword being braked before position s 2 , at which it hits the sheet, so that it hits the sheet at low speed.
  • the folding sword is like this until the lowest end position is reached that moves the speed of the lower end of the folding sword in the direction of movement portion of the circumferential roller speed at the lower end of the folding sword.
  • the sheet is fed to the folding rollers at the absolute peripheral speed of the folding rollers to hand over.
  • the folding sword is then jerked back to its uppermost end position.
  • the backward movement advantageously takes place at a very high speed, which is so large that due to the inertia of the bow, bow retraction is no longer possible is.
  • the sheet speed is the folding roller speed and ideally the sword speed until the bow is handed over equal. This prevents friction between the sheet and the folding rollers.
  • good results are also achieved when the peripheral speed of the Folding rollers exceed the sheet speed by less than 15%.
  • the voice coil drive is special for controlling the movement of the folding blade well suited.
  • other highly dynamic controllable drives are also possible, such as. pneumatic or hydraulic.
  • the end position dampers 10, 15 can be dispensed with when the stroke is through the control device is precisely changed over without a stop of the magnetic body (13).

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP20020005988 2002-03-15 2002-03-15 Dispositif d'entraínement pour une lame de pliage Expired - Lifetime EP1354835B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE50203335T DE50203335D1 (de) 2002-03-15 2002-03-15 Falzschwertantriebsvorrichtung
EP20020005988 EP1354835B1 (fr) 2002-03-15 2002-03-15 Dispositif d'entraínement pour une lame de pliage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020005988 EP1354835B1 (fr) 2002-03-15 2002-03-15 Dispositif d'entraínement pour une lame de pliage

Publications (2)

Publication Number Publication Date
EP1354835A1 true EP1354835A1 (fr) 2003-10-22
EP1354835B1 EP1354835B1 (fr) 2005-06-08

Family

ID=28459445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020005988 Expired - Lifetime EP1354835B1 (fr) 2002-03-15 2002-03-15 Dispositif d'entraínement pour une lame de pliage

Country Status (2)

Country Link
EP (1) EP1354835B1 (fr)
DE (1) DE50203335D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1770043A1 (fr) * 2005-09-29 2007-04-04 Heidelberger Druckmaschinen AG Plieuse à lame et procédé pour l'ajustement d'un plieuse à lame.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19843872A1 (de) * 1998-09-25 2000-03-30 Saechsisches Inst Fuer Die Dru Einrichtung zur Steuerung und Regelung eines Falzmesserantriebes
EP1142811A2 (fr) * 2000-04-06 2001-10-10 MASCHINENBAU OPPENWEILER BINDER GmbH & CO. Entraínement pour une lame de pliage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19843872A1 (de) * 1998-09-25 2000-03-30 Saechsisches Inst Fuer Die Dru Einrichtung zur Steuerung und Regelung eines Falzmesserantriebes
EP1142811A2 (fr) * 2000-04-06 2001-10-10 MASCHINENBAU OPPENWEILER BINDER GmbH & CO. Entraínement pour une lame de pliage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1770043A1 (fr) * 2005-09-29 2007-04-04 Heidelberger Druckmaschinen AG Plieuse à lame et procédé pour l'ajustement d'un plieuse à lame.
DE102005046688A1 (de) * 2005-09-29 2007-04-05 Heidelberger Druckmaschinen Ag Schwertfalzwerk und Verfahren zum Einstellen eines Schwertfalzwerks
JP2007091473A (ja) * 2005-09-29 2007-04-12 Heidelberger Druckmas Ag ナイフ折り装置、およびナイフ折り装置を調節する方法
CN1939829B (zh) * 2005-09-29 2012-06-20 海德堡印刷机械股份公司 刀式折页装置和用于调节刀式折页装置的方法

Also Published As

Publication number Publication date
DE50203335D1 (de) 2005-07-14
EP1354835B1 (fr) 2005-06-08

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