EP0681892A1 - Tiegelpresse für eine Vorrichtung zum Bearbeiten von Bögen - Google Patents

Tiegelpresse für eine Vorrichtung zum Bearbeiten von Bögen Download PDF

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Publication number
EP0681892A1
EP0681892A1 EP95106873A EP95106873A EP0681892A1 EP 0681892 A1 EP0681892 A1 EP 0681892A1 EP 95106873 A EP95106873 A EP 95106873A EP 95106873 A EP95106873 A EP 95106873A EP 0681892 A1 EP0681892 A1 EP 0681892A1
Authority
EP
European Patent Office
Prior art keywords
width
movable lower
driven
base
toggle
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
EP95106873A
Other languages
English (en)
French (fr)
Other versions
EP0681892B1 (de
Inventor
Marcel Yerly
Jean-Luc Gillieron
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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 Bobst SA filed Critical Bobst SA
Publication of EP0681892A1 publication Critical patent/EP0681892A1/de
Application granted granted Critical
Publication of EP0681892B1 publication Critical patent/EP0681892B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/007—Means for maintaining the press table, the press platen or the press ram against tilting or deflection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/14—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/14—Crank and pin means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type

Definitions

  • the present invention relates to a platen press for the cutting station of a machine for treating plate elements, such as sheets of paper or cardboard, and more particularly to a press comprising a lower bed base which can be moved vertically during of each machine cycle until its substantially planar upper surface comes to apply pressure on a flat marble secured to a fixed upper bed base.
  • Such a plate element processing machine usually comprises first of all an insertion station in which a stack of sheets is installed, each sheet being successively removed from the top of the stack to be sent to a margin table. On this table, each sheet is placed in position against front and side cleats before being gripped at its front edge by a series of pliers mounted along a transverse bar, each end of which is attached to a train of side chains taking the bar, and therefore the sheet, to the following treatment stations.
  • the treatment stations can be a cutting station, the latter being followed by a waste ejection station.
  • These processing stations are followed by a receiving station in which each sheet released by the clamps is squared by falling on top of a pile accumulating on an output pallet.
  • the upper box spring is embedded on each side in the station frame cutting.
  • the movable bed base is usually moved at four points, on each of which acts a toggle driven by a connecting rod connected to a crankshaft. These points are generally distributed in pairs, one pair, upstream, being placed in the vicinity of the upstream edge of the bed base, that is to say close to the introduction station, and the other pair, downstream, being placed in the vicinity from the downstream edge of the bed base, that is to say near the ejection station.
  • Each pair of points, taken across the width of the bed base is normally arranged symmetrically with respect to the median vertical plane of the bed base, the points being located near the lateral edges of the bed base. It should be noted that the pairs of upstream and downstream points are often located at a spacing of different width to take account of the geometry and the position of the drive members, in particular the crankshaft, connecting rods, the worm and of the worm wheel.
  • the bed bases When pressure is applied, the bed bases deform according to the position of the lifting points of the lower bed base. It is difficult to envisage obtaining, during the pressurization, a deformation curve which is absolutely the same for the two bed bases. It is however essential, for a good quality of the treatment of the elements in plate and in particular of their cutting, that the curves of deformation of the upper and lower bed bases match as best as possible.
  • the object of the present invention is a platen press arranged so that the combination of the deformation curves of two bed bases is more easily achievable, and, if possible, at lower cost by a simplified structure of the bed bases.
  • a platen press for the cutting station of a plate processing machine comprising an upper base embedded on each side in the frames of the cutting station and a movable lower base moved vertically by knee pads whose pivot axes are oriented in the width of the movable lower base, each knee switch being driven by at least one connecting rod connected to a crankshaft, characterized in that the movable lower bed base is actuated by only two identical knee switches, an upstream knee switch and a downstream knee switch, each being symmetrical with respect to a median vertical plane passing through the middle of the width of the movable lower bed base, the width of each of these toggles being between one third and two thirds of the width of this movable lower bed base and in that the crankshaft is driven by a screw and a screw wheel without end arranged outside the operating area of the knee pads.
  • the curve of deformation of the bed bases can be determined precisely and can be used to calculate exactly the geometry of each of the upper and lower bed bases.
  • one of the knuckles is driven by a first major central link, while the other knuckle is driven by a pair of minor links respectively located on either side of the first on the same crankshaft .
  • the dimensions of the pair of minor connecting rods are such that the sum of their tensile and compressive strength is equivalent to that of the major connecting rod. Unlike two identical connecting rods side by side conceivable, this configuration ensures a homogeneity of the lifting action with respect to the median vertical plane of the bed bases.
  • crankshaft actuating the connecting rods is driven at its end by a vertical worm wheel installed on the side of the knee pads.
  • This configuration made possible by the small number of connecting rods involved avoids first having to unnecessarily notch the lower bed base and then makes it possible to accommodate on the side the worm drive of the wheel and its automatic disengaging device in case overpressure.
  • a sheet of paper or cardboard 2 is brought by a clamp bar 3 between the fixed upper bed 4 and the vertically movable lower bed 8 of a platen press. Once the sheet in place, the upward movement of the box spring 8 presses the sheet 2 into the knives 5 of the upper box spring 4, this sheet then being cut into the format defined by the arrangement of its knives.
  • the box spring 8 rests on the lower frame 7 of the machine by only two identical knee pads: an upstream 16 and a downstream 18.
  • Each of these kneepads comprises an upper half-toggle 36 and a lower half-toggle 32 substantially symmetrical with respect to a horizontal plane.
  • the lower half-toggle joint 32 is articulated in rotation about an axis Y3 on a lower roller 34 resting in a pad 35 housed in the lower frame 7, and at its upper end it is articulated in rotation around an axis Y2 against a middle roller 22 (26).
  • the upper half-toggle 36 is articulated at its lower end in rotation about the axis Y2 against the median roller 22 (26), and at its upper end in rotation around an axis Y1 against a half roller 38 housed in feet 39 of the lower base 8.
  • each half-toggle joint has a central recess 30 from the edge in contact with the median roller 22, and the resulting general shape has symmetry with respect to their median vertical plane which, according to the invention, coincides with the median vertical plane of the lower bed base 8.
  • the lateral edges of the lower half-knee pads 32 and the upper half-knee pads 36 are housings for bolts for fixing the knee pad to the 'one of the rotation rollers.
  • the rotation rollers are also required transversely in these toggles by flanges 28 receiving a positioning axis located at the ends of the rollers, these flanges being bolted in the lower pad or half-toggle.
  • the middle roller 22 of the upstream toggle joint 16 is held in its middle by a major connecting rod 20 connected to the crankshaft 14.
  • the middle roller 26 of the toggle joint 18 is held by a pair of connecting rods minor 24 arranged, in the recess 30, against the internal face of each of the lower and upper parts of the half-toggles in contact with this median roller 26.
  • each minor connecting rod of the pair 24 is symmetrically arranged on either side of the major connecting rod 20 on the crankshaft 14.
  • the dimensions of the two minor connecting rods 24 are such that together they are equivalent to the major connecting rod 20.
  • crankshaft 14 leaves the area of action of the knee pads 16, 18 on the side opposite the conductor, to be connected to a vertical worm wheel 12 driven by a screw endless lower 10.
  • the knee pads 16 and 18 are symmetrical with respect to the longitudinal longitudinal XX and transverse YY planes.
  • the thrust force applied by these toggles on the base 8 is therefore balanced with respect to these two planes.
  • the width of the kneepads 16 and 18 is only between one third and two thirds of the width of the bed base making the intensity of the thrust maximum in the vertical median plane XX which allows , in combination with installation according to two lateral edges of the fixed upper bed base 4, to combine the deformation of these two bed bases when pressurized.
  • the adaptation of the lower base 8 to the fixed upper base 4 is therefore particularly easy since it is symmetrical in the width direction and substantially constant in the length direction.

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)
  • Press Drives And Press Lines (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Making Paper Articles (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Punching Or Piercing (AREA)
EP95106873A 1994-05-13 1995-05-06 Tiegelpresse für eine Vorrichtung zum Bearbeiten von Bögen Expired - Lifetime EP0681892B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01491/94A CH689970A5 (fr) 1994-05-13 1994-05-13 Presse à platine pour la station de découpage d'une machine de traitement d'éléments en plaque.
CH1491/94 1994-05-13

Publications (2)

Publication Number Publication Date
EP0681892A1 true EP0681892A1 (de) 1995-11-15
EP0681892B1 EP0681892B1 (de) 1997-12-10

Family

ID=4211709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95106873A Expired - Lifetime EP0681892B1 (de) 1994-05-13 1995-05-06 Tiegelpresse für eine Vorrichtung zum Bearbeiten von Bögen

Country Status (11)

Country Link
EP (1) EP0681892B1 (de)
JP (1) JP2866025B2 (de)
KR (1) KR0173044B1 (de)
CN (1) CN1065166C (de)
AT (1) ATE160963T1 (de)
AU (1) AU680353B2 (de)
BR (1) BR9502032A (de)
CH (1) CH689970A5 (de)
DE (1) DE69501179T2 (de)
ES (1) ES2110281T3 (de)
TW (1) TW260640B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101323178B (zh) * 2007-06-14 2011-10-26 荣成金辰机械制造有限公司 压力机滑块与动力驱动系的连接装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4313816B2 (ja) * 2006-12-27 2009-08-12 株式会社山田ドビー プレス機械
DE102014115241B4 (de) * 2014-10-20 2021-08-12 Schuler Pressen Gmbh Pressenantriebsvorrichtung für eine Presse und Presse mit Pressenantriebsvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH245082A (fr) * 1945-04-18 1946-10-31 Bobst Fils Sa J Presse à platines.
DE2501748B2 (de) * 1975-01-17 1978-06-15 L.Schuler Gmbh, 7320 Goeppingen Presse zur Blechbearbeitung mit Kniegelenkantrieben
GB2118090A (en) * 1982-04-15 1983-10-26 Bobst Sa Driving device for a cutting station of a platen press
DE3912011A1 (de) * 1989-02-16 1990-08-23 Iberica Ag Walzgutbearbeitungsmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH575814A5 (de) * 1974-02-12 1976-05-31 Bobst Fils Sa J
JPS5941038Y2 (ja) * 1981-12-22 1984-11-24 株式会社日光製作所 自動平盤打抜機の抜圧調整装置
US5176075A (en) * 1989-02-16 1993-01-05 Iberica A.G., S.A. Machines for handling or working materials in laminar or sheet form
CH683162A5 (fr) * 1990-04-25 1994-01-31 Bobst Sa Procédé d'asservissement du parallélisme des deux sommiers d'une presse à découper des éléments en forme de feuille ou bande en vue de la production d'emballages.
JP2518456Y2 (ja) * 1991-06-13 1996-11-27 三菱重工業株式会社 打抜き装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH245082A (fr) * 1945-04-18 1946-10-31 Bobst Fils Sa J Presse à platines.
DE2501748B2 (de) * 1975-01-17 1978-06-15 L.Schuler Gmbh, 7320 Goeppingen Presse zur Blechbearbeitung mit Kniegelenkantrieben
GB2118090A (en) * 1982-04-15 1983-10-26 Bobst Sa Driving device for a cutting station of a platen press
DE3912011A1 (de) * 1989-02-16 1990-08-23 Iberica Ag Walzgutbearbeitungsmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101323178B (zh) * 2007-06-14 2011-10-26 荣成金辰机械制造有限公司 压力机滑块与动力驱动系的连接装置

Also Published As

Publication number Publication date
JP2866025B2 (ja) 1999-03-08
EP0681892B1 (de) 1997-12-10
AU1794395A (en) 1995-11-23
BR9502032A (pt) 1995-12-26
CN1114610A (zh) 1996-01-10
DE69501179T2 (de) 1998-04-16
CH689970A5 (fr) 2000-02-29
KR0173044B1 (ko) 1999-02-18
JPH07308898A (ja) 1995-11-28
DE69501179D1 (de) 1998-01-22
KR950031488A (ko) 1995-12-18
CN1065166C (zh) 2001-05-02
ES2110281T3 (es) 1998-02-01
ATE160963T1 (de) 1997-12-15
AU680353B2 (en) 1997-07-24
TW260640B (en) 1995-10-21

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