EP0334016B1 - Vorrichtung zum Bewegen eines Falzschwertes einer Falzmaschine - Google Patents

Vorrichtung zum Bewegen eines Falzschwertes einer Falzmaschine Download PDF

Info

Publication number
EP0334016B1
EP0334016B1 EP89102601A EP89102601A EP0334016B1 EP 0334016 B1 EP0334016 B1 EP 0334016B1 EP 89102601 A EP89102601 A EP 89102601A EP 89102601 A EP89102601 A EP 89102601A EP 0334016 B1 EP0334016 B1 EP 0334016B1
Authority
EP
European Patent Office
Prior art keywords
folding
point
support
pivot
folding blade
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
EP89102601A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0334016A3 (en
EP0334016A2 (de
Inventor
Erich Schauer
Karl-Fritz Heina
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
Publication of EP0334016A2 publication Critical patent/EP0334016A2/de
Publication of EP0334016A3 publication Critical patent/EP0334016A3/de
Application granted granted Critical
Publication of EP0334016B1 publication Critical patent/EP0334016B1/de
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 device for moving a folding blade of a folding machine with a support held on the folding machine side, with a sword suspension, consisting of a first pivoting element driven for pivoting back and forth and a second pivoting element, which are spaced apart from one another with the folding blade in the longitudinal direction of the folding blade are each connected to a pivot point and are pivotally held on the carrier at a pivot point provided at a distance from the pivot point, with a coupling member which engages at a pivot point on each pivoting element to bring about an up and down movement of the folding sword with respect to the folding gap between two assigned folding rollers, the angles and distances between the articulation point, the pivot point and the coupling point are the same on both swivel members, and with a positive guidance for the movement path specification of the folding sword.
  • the folding sword is suspended from two drive cranks rotating at the same speed, from which it is moved up and down.
  • the folding knife is suspended from the drive crank by means of an additional crank, which in turn is mounted coaxially with its pivot on the crank pin of the drive crank.
  • the additional crank is driven by a gear transmission at the same speed as the drive crank, but in the opposite direction of rotation.
  • the pivot of the additional crank carries a gear that rolls in an internal toothing that is fixed in the center of the drive pin of the drive crank.
  • the total stroke of the folding knife corresponds to the pitch circle diameter of the internal toothing. If the crank radius of the drive crank corresponds to the crank radius of the additional crank, the folding knife executes a straight vertical lifting movement.
  • the movement for the folding sword is predetermined by a positive guide.
  • a pin mounted on the folding sword engages in a cam groove formed on a driven cam.
  • two guide pins mounted on the folding sword engage in scenes arranged in parallel.
  • the guide groove in the drive must be made so precisely that the folding blade does not jam when the drive rotates.
  • a new movement specification of the folding sword can only be achieved by arranging new scenes and by replacing the cam disc. This is structurally very complex.
  • DE-C-261 144 shows a device for moving a folding sword, in which two uniform swivel members are mounted on the frame at a distance from one another in the longitudinal direction of the folding sword.
  • One of the swivel members is driven by a drive mounted on the folding machine and transmits its movement to the second swivel member via a coupling rod.
  • the folding sword is articulated on both swivel members in such a way that when the swivel members rotate, it performs a positively guided, purely translatory movement, that is to say that the sword edge remains parallel to a sheet to be folded during its movement.
  • each point of the folding sword describes part of a circular path during the oscillating movement of the swivel members, the edge of the folding sword moves not only vertically to it after hitting the arch. This means that the sheet is not guided purely tangentially between the folding rollers, but that the movement also has an axial portion relative to the folding rollers, which can lead to displacements and compression of the sheet.
  • the object on which the invention is based is to design the device for moving a folding sword so that the movement of the folding sword can be specified precisely in accordance with the requirements to achieve high folding performance with stable folding sword suspension and small masses to be moved.
  • the swivel members are each connected to the folding sword by means of a link which is articulated on the folding sword in a pivot point and on the respective pivot member in the articulation point in that the positive guidance is fastened to the carrier is and that the carrier is guided on the folding machine side in its longitudinal direction.
  • the pivoting members are each connected to the folding sword via a link guide.
  • the link guide can either be formed by a sliding block attached to the folding sword and a link formed in the respective pivot link in which the sliding block is guided, or by a sliding block attached to the respective pivot link and a link formed in the folding link in which the sliding link is guided is.
  • the moments of inertia of the moving elements are small, the tendency of the folding blade to vibrate is reduced, a low overall height is achieved and the movement of the folding blade can be adapted to the respective requirements.
  • the forced guidance is usually a straight guide of the folding sword, which enables a straight up and down movement of the folding sword.
  • the positive guidance expediently consists of a guide bar guided between rollers in order to keep the friction low.
  • rollers are held in bearings on the folding sword. Straight guidance is guaranteed by the bearing tolerances and also when the folding blade is adjusted at an angle.
  • the folding blade can be guided by at least one side guide segment arranged on the carrier, each of which can have guide surfaces provided with a sliding coating, in order to reduce the friction of the folding blade on the guide surfaces.
  • each side guide segment is detachably arranged on the carrier.
  • the coupling member can expediently be a longitudinally adjustable coupling rod with which an adjustment of the second pivoting member with respect to the first pivoting member can be carried out, which is equivalent to an inclined height adjustment of the folding sword.
  • the connecting lines between the bearing point, the swivel point and the pivot point form a triangle on the swivel plate.
  • a longitudinally adjustable adjustment element held on the folding machine acts on an end face of the carrier. This enables the girder to be adjusted vertically parallel to the machine in its longitudinal direction and thereby the folding blade during operation from outside a soundproofing hood attached to the folding machine.
  • the carrier is held on the folding machine so as to be tiltable about a pivot axis extending in its longitudinal direction, whereby it can have a cantilever arm arranged essentially perpendicular to its longitudinal direction, which can be caused by a Biasing device is pressed against an adjustable stop fixed to the folding machine.
  • the distance between the contact point of the cantilever arm and the stop and the pivot axis of the carrier is twice as large as the distance between the pivot axis of the carrier and the folded edge of the folding sword, only a sheet with the thickness of the sheets to be folded between the stop and the To be inserted cantilever arm, whereby the folding edge of the folding blade moves exactly into the position in the middle above the two folding rollers arranged below.
  • the folding machine is provided with a device which shifts one of the folding rollers to adjust the gap width between the folding rollers interacting with the folding blade
  • an automatic adjustment of the folding blade to the respective center of the folding gap can be achieved in that the device for adjusting the gap width by Actuating elements are coupled to the center adjustment device formed by the cantilever arm, carrier, pretensioning device and stop so that half the amount of the folding nip adjustment is transferred to the latter.
  • the folding sword can consist of a longer longitudinal part and a shorter longitudinal part, which are detachably connected to one another and laterally guided by side guide segments, the links being articulated on the longer longitudinal part of the folding sword in the articulation points.
  • a drive 13 is provided on a folding machine 10.
  • a drive rod 14 coupled to the drive 13 is articulated at an engagement point 53 of a first pivot member 15.
  • a coupling rod 21 is articulated on a second pivoting member 16 at a coupling point 20 and is also articulated on a coupling point 20 of the first pivoting member 15.
  • the swivel members 15, 16 are connected at a distance from each other to the folding sword 12 via a link 24, which is articulated at a hinge point 54 of each swivel member 15, 16 and at an articulation point 55 on the folding sword 12.
  • the pivot members 15, 16 are pivotally held on a support 11 at a pivot point 19 provided at a distance from the articulation point 54 on each pivot member 15, 16.
  • the pivoting members 15, 16 each consist of a plate which essentially has the shape of a triangle, the pivot point 54, the pivot point 19 and the coupling point 20 being provided in the region of the corners of the triangle.
  • the drive rod 14 articulated on the drive 13 is articulated at the point of application 53 on an extension 22 of the first pivot member 15.
  • the extension 22 extends on the extension of the connecting line between the pivot point 19 and the coupling point 20 to which the coupling rod 21 is articulated.
  • a rotating movement of the drive 13 causes the first pivot member 15 to pivot back and forth about the pivot point 19 on the carrier 11 via the drive rod 14.
  • the second pivot member 16, in which the coupling point, the pivot point and the articulation point are geometrically the same as on the first pivot member are arranged, is pivoted about the pivot point 19 on the carrier 11 via the coupling rod 21 synchronously with the movement of the first pivot member 15.
  • a straight guide 25 which is explained in more detail with reference to FIG. 2, and lateral guide segments 26, which are described in more detail with reference to FIG. 3, are provided, which are detachably attached to the carrier 11.
  • the straight guide 25 makes it possible, together with the articulated levers 24, to predetermine the movement of the folding sword 12.
  • the side guide segments 26 guide the folding sword 12 laterally in its up and down movement, as a result of which the tendency of the folding sword 12 to oscillate is reduced.
  • the second pivoting member 16 has a pivoting plate 27 which is pivotably held on the support 11 at a pivoting point 29, to which the second pivoting member 16 is articulated at a pivot point 30 and a rod 33 which is adjustable in length in a bearing point 28 are, on the other hand, articulated on the support 11 in a hinge point 37 for an inclined height adjustment of the folding sword 12.
  • the bearing point 28 moves on a circular arc piece around the pivot point 29, at which the pivot plate 27 is pivotally held on the carrier 11.
  • the fulcrum 30, on which the second pivot member 16 is articulated moves on an arc around the pivot point 29.
  • the displacement of the pivot point 30 of the second pivot member 16 causes an inclined height adjustment of the folding sword 12.
  • the longitudinally adjustable rod 33 can be attached on the folding machine side so that it can be operated outside the protective hood of the folding machine during operation.
  • a modified inclined height adjustment is shown, in which the second pivoting member 16 is mounted at a pivot point 101 on a bearing device 100 guided vertically in the carrier 11.
  • the bearing device 100 has an L-shaped bearing block 102 and a counter block 104 which is arranged on the opposite side of the carrier 11 and which are connected to one another by guide bolts 105 and 107.
  • the guide bolts 105 and 107 then have a shaft part on their head and a threaded part on this.
  • the shaft parts pass through vertical elongated holes 110, 112 formed in the carrier, the inner diameter of which is somewhat larger than the outer diameter of the corresponding shaft part.
  • the bearing block 102 and the counter block 104 are connected to one another by the guide bolts 105 and 107 in such a way that they can be adjusted vertically on the support 11 with almost no play.
  • the bearing block 102 has on its web facing the carrier a projection 106 which is guided in a vertical guide groove 108 formed in the carrier 11.
  • the second pivoting member 16 is articulated between the bearing block 102 and the carrier 11 on the bearing block 102 in a bearing point 101 in such a way that it can carry out its pivoting movement without hindrance.
  • a lower part 124 of an adjusting spindle 120 which is provided with a left-hand thread, is screwed vertically into the counter block 104.
  • the upper part 122 of the adjusting spindle 120 is provided with a right-hand thread and screwed into a threaded opening of the holder 118, which is fastened to the cantilever arm 35.
  • a handwheel 140 is attached to the upper end thereof, which can be rotated outside of the noise protection hood (not shown) attached to the folding machine.
  • the height incline adjustment works as follows: A rotation of the handwheel 140 moves the adjusting spindle 120 upward or downward due to its thread guidance in the threaded opening 123. Since the lower part 124 of the movement spindle 120 is screwed into the counter block 104, this and thereby the vertically guided bearing block 102 is moved up and down.
  • the height of the pivot point 101 arranged on the bearing block can be adjusted vertically, thereby making it possible to adjust the height of the folding sword.
  • a cantilever arm 35 is also arranged on the carrier 11 and serves as a stop for a central adjustment 36, the construction of which is discussed in more detail in the explanation of FIG. 4.
  • the carrier 11 is also longitudinally displaceable and tiltable about its longitudinal axis 31 by two pivot pins 32 on the folding machine 10.
  • a longitudinally adjustable adjusting element 34 which is held in a machine-fixed manner, engages on one of the pivot pins 32, as a result of which the carrier 11 can be displaced in its longitudinal direction.
  • the pivoting movement of the pivot members 15, 16 changes, as a result of which the stroke of the folding blade 12 also changes accordingly.
  • the height of the folding sword 12 can be adjusted in parallel by the adjusting element 34.
  • the adjusting element 34 can be operated from outside the protective hood of the folding machine 10 during the operation of the folding machine.
  • the straight guide 25 shown in FIG. 2 consists of a guide bar 42 fastened to the carrier 11, the guide surfaces 58 of which are provided with a sliding coating 57, and of rollers 38 mounted on the folding blade 12.
  • the rollers 38 are attached to the folding blade 12 by means of screws 60 with nuts 61 attached, spacers 39 being arranged between the head of the screw 60 and the folding blade 12 and the rollers 38 and the folding blade 12.
  • the rollers 38 rest on the side surfaces of the guide bar 42.
  • a side guide segment 26 consists of a part 62 fastened to the carrier 11 and of a part 63 flanged to the carrier-fixed part 62 by screws 43, the guide surfaces 41 of which are provided with a sliding coating 40 in order to and moving the folding blade 12 to reduce the friction.
  • the side guide segments 26 laterally guide the folding sword 12 during the up and down movement, as a result of which the tendency of the folding sword 12 to oscillate is reduced.
  • FIG. 4 shows the structure of the center adjustment 36 from FIG. 2.
  • the carrier 11 is held on the folding machine 10 by the pivot pin 32 so as to be pivotable about its longitudinal axis 31.
  • the cantilever 35 on the carrier 11 is pressed against a machine-fixed stop 48 via a pretensioning device 49.
  • the distance between the contact point of the cantilever arm 35 and stop 48 to the pivot axis 31 of the carrier 11 is dimensioned such that it is twice the distance between the pivot axis 31 of the carrier 11 and the folded edge 47 of the folded sword 12. With this dimensioning, when a folding sheet with a certain thickness is inserted between the contact point of the cantilever 35 and the stop 48, the folding edge 47 moves by the distance of half the sheet thickness. This simplifies the setting of the folding blade edge 47 to the center of folding rollers 70 and 71 provided below the folding blade 12.
  • the two-part folding sword 12 shown in FIG. 5 has a shorter longitudinal part 51 and a longer longitudinal part 50, which are connected to one another by screw connections 52 and are guided laterally through lateral guide segments 26.
  • the articulated lever 24 is articulated on the longer longitudinal part 50 of the folding sword 12 in the articulation point 55.
  • the sheet spacing from the next sheet can be kept small using a shorter folding blade 12, as a result of which a higher folding performance can be achieved.
  • the side guide segment 26, which leads a shorter longitudinal part 51 is first removed from the carrier, not shown in FIG. 5. Then the screw connections 52 connecting the two longitudinal parts 50 and 51 are loosened and the shorter longitudinal part 51 of the folding sword 12 is removed.
  • a sliding block 155 is attached to the folding sword 12 instead of the articulation point 55 of the first embodiment and is guided in an elongated hole guide 154 formed on the respective swivel member which is provided instead of the hinge point 54.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP89102601A 1988-03-21 1989-02-15 Vorrichtung zum Bewegen eines Falzschwertes einer Falzmaschine Expired - Lifetime EP0334016B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3809449A DE3809449C1 (es) 1988-03-21 1988-03-21
DE3809449 1988-03-21

Publications (3)

Publication Number Publication Date
EP0334016A2 EP0334016A2 (de) 1989-09-27
EP0334016A3 EP0334016A3 (en) 1990-05-23
EP0334016B1 true EP0334016B1 (de) 1993-09-01

Family

ID=6350285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102601A Expired - Lifetime EP0334016B1 (de) 1988-03-21 1989-02-15 Vorrichtung zum Bewegen eines Falzschwertes einer Falzmaschine

Country Status (3)

Country Link
EP (1) EP0334016B1 (es)
DE (2) DE3809449C1 (es)
ES (1) ES2042820T3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4114309A1 (de) * 1991-05-02 1992-11-05 Brehmer Buchbindereimaschinen Vorrichtung zum verschwenken des falzmessers an messerfalzmaschinen hinsichtlich seiner laengsachse
DE4329681C1 (de) * 1993-09-02 1995-01-05 Binder & Co Masch Oppenweiler Vorrichtung zum Bewegen eines Falzschwertes einer Falzmaschine
DE4329688C1 (de) * 1993-09-02 1994-10-27 Binder & Co Masch Oppenweiler Falzschwertanordnung für Schwertfalzwerke

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US259978A (en) * 1882-06-20 Machine
DE261144C (es) *
US2751222A (en) * 1952-06-19 1956-06-19 Barkley & Dexter Inc Sheet-folding machine
FR1348935A (fr) * 1963-02-28 1964-01-10 Leipziger Buchbindereimaschine Dispositif de réglage des cylindres de pliage
DD136821A1 (de) * 1978-06-22 1979-08-01 Christian Grueger Antrieb fuer falzmesser an bogenverarbeitenden maschinen
DE3027342C2 (de) * 1980-07-18 1982-08-19 Maschinenbau Oppenweiler Binder GmbH & Co, 7155 Oppenweiler Vorrichtung zum Verschwenken des Schwertes in seiner Längsachse und zum Einstellen der Schwerttiefe an Schwertfalzmaschinen
DE3046051C2 (de) * 1980-12-06 1983-12-01 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Falzvorrichtung für Rollen-Rotationsdruckmaschinen

Also Published As

Publication number Publication date
DE3809449C1 (es) 1989-05-18
DE58905408D1 (de) 1993-10-07
EP0334016A3 (en) 1990-05-23
EP0334016A2 (de) 1989-09-27
ES2042820T3 (es) 1993-12-16

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