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EP1403013A2 - Dispositif pour gaufrer et découper des feuilles - Google Patents

Dispositif pour gaufrer et découper des feuilles Download PDF

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Publication number
EP1403013A2
EP1403013A2 EP03018703A EP03018703A EP1403013A2 EP 1403013 A2 EP1403013 A2 EP 1403013A2 EP 03018703 A EP03018703 A EP 03018703A EP 03018703 A EP03018703 A EP 03018703A EP 1403013 A2 EP1403013 A2 EP 1403013A2
Authority
EP
European Patent Office
Prior art keywords
punching
sheet
embossing machine
eccentric shafts
upper table
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.)
Withdrawn
Application number
EP03018703A
Other languages
German (de)
English (en)
Other versions
EP1403013A3 (fr
Inventor
Gerhard Klassen
Hermann Namowitz
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 EP1403013A2 publication Critical patent/EP1403013A2/fr
Publication of EP1403013A3 publication Critical patent/EP1403013A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • 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
    • 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
    • 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
    • B26D5/16—Cam 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
    • 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
    • B30B1/26—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 cams, eccentrics, or cranks
    • B30B1/261—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 cams, eccentrics, or cranks by cams
    • 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
    • B30B1/26—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 cams, eccentrics, or cranks
    • B30B1/266—Drive systems for the cam, eccentric or crank axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20—Cutting sheets or blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0702—Embossing by tools working discontinuously

Definitions

  • the invention relates to a sheet punching and embossing machine with a stationary table provided with a counter plate and a table provided with a punch knife which can be moved up and down via a lifting drive perpendicular to the counter plate, the lifting drive consisting of at least one eccentric shaft mounted in the machine frame and an eccentric shaft with has eccentrically mounted pressure rollers.
  • a generic drive for a sheet punching and embossing machine is known from DE 30 44 083 C3.
  • the machine described herein has a fixed lower table and a movable upper and lower table for punching sheets of paper, cardboard and the like.
  • the movement of the up and down movable upper table is realized by rollers, which are arranged on two eccentric shafts arranged above the table.
  • the upper table rests against the rollers on the eccentric shaft with spring force.
  • the upper table is moved vertically against the lower table by rotating the eccentric shafts.
  • the eccentric drive results in an essentially sinusoidal lifting movement of the upper table over time.
  • the sheets are gripped in the sheet punching and embossing machine by gripper bar arrangements attached to circulating chains at their front edge and then intermittently pulled through the punching and embossing device and further stations.
  • the punched sheet must be moved out of the punching table and the new sheet inserted.
  • the sine curve of the time course of the stroke movement opens a constantly large time window, which of course depends on the rotational speed of the eccentric shafts. This time is limited by the minimal stroke of the upper table, which the gripper bars require for the passage below the upper table. The movement and rest times of the gripper bars are thus fixed.
  • the cycle times of the machine can be varied via the rotational speed of the eccentric shafts.
  • the invention has for its object to provide a drive for a punching and embossing station of a sheet punching and embossing machine, which allows a simple constructional increase in the working speed of the machine.
  • This object is achieved according to claim 1 by driving the eccentric shafts via a non-uniformly acting gear, so that a non-uniform movement of the moving table is made possible.
  • a non-uniform drive for the eccentric shafts it is now possible to influence the time course of the acceleration and deceleration of the lifting movement of the movable table as desired, and thus to increase the working speed of the machine.
  • FIG. 1 the basic structure of a sheet punching and embossing machine 1 for punching, breaking out and depositing sheets of paper, cardboard and the like is shown.
  • the punching and embossing machine 1 consists of a punching device 2, a stripping device 3 and a depositing device 4, which are carried and enclosed by a common machine housing 5.
  • the sheets 6 are gripped by gripper bars 8 fastened on revolving chains 7 at their front edge and intermittently pulled through the various stations 2, 3 and 4 of the punching and embossing machine 1.
  • the punching station 2 consists of a lower table 9 and an upper table 10.
  • the lower table 9 is fixedly mounted in the machine frame and provided with a counter plate to the punching knife.
  • the upper table 10 is mounted movable up and down and driven by a drive device described in more detail below.
  • the gripper bar 8 transports the sheet 6 from the punching and embossing station 2 into the subsequent stripping station 3, which can be equipped with stripping tools.
  • the stripping station 3 with the aid of the stripping tools, the waste pieces that are not required are pushed down out of the sheet, as a result of which these waste pieces 11 fall into a container-like carriage 12 inserted under the station.
  • the sheet 6 arrives in the depositing station 4, where the sheet is either simply deposited or, at the same time, it is cheaper to separate the individual benefits.
  • the depositing station 4 can also contain a pallet 13 on which the individual sheets are stacked in the form of a stack 14, so that after reaching a certain stacking height the pallets with the stacked sheets 14 can be moved out of the area of the punching and embossing machine 1.
  • the chains 7 carry several gripper bars 8, for example there are eight, so that several sheets 6 can be processed simultaneously in the different stations 2, 3 and 4.
  • FIG. 2 shows a preferred embodiment of the invention of the punching device 2 of the punching and embossing machine 1.
  • the punching device 2 consists of a stationary under table 9 provided with a counter plate 15 and an up and down movable top table 10 provided with a punch knife 16.
  • the sheet 6 is held in the punch station 2 by means of a gripper bar 8 between the counter plate 15 and the punch knife 16.
  • the upper table 10 is moved perpendicular to the lower table 9 in the direction of the arrow 17.
  • the upper table 10 is held under tension by spring force in the direction of the eccentric shafts 18, 19.
  • the eccentric shafts 18, 19 have eccentric receptacles on which pressure rollers 20, 21 are rotatably mounted.
  • the eccentric shafts are driven by gears 22, 23 which are firmly connected to the eccentric shafts 18, 19.
  • a non-circular gear wheel 24 is firmly connected to an eccentric shaft 19.
  • the non-uniformly acting gear of the drive of the eccentric shafts 18, 19 in the illustrated embodiment consists of the two non-circular gears 24, 25.
  • a drive for example an electric motor, can then be connected directly to the non-circular gear 25.
  • the embodiment of the eccentric shaft drive shown here represents the preferred embodiment of the invention. However, it is also conceivable to connect a further transmission or an indirect drive such as a belt transmission or a linkage to the non-uniform transmission 24, 25. From the uniform movement of the driving non-circular gear 25, a non-uniform movement is transmitted to the eccentric shaft 19 with the aid of the non-circular gear 24. Via the gear 23, the non-uniform movement is transmitted to the gear 22 and thus to the eccentric shaft 18, so that the two eccentric shafts 18, 19 move synchronously and move the upper table 10 in the direction of the lower table 9 in parallel. The rotary movement of the eccentric shafts 18, 19 is synchronous, but in opposite directions.
  • the non-uniformly acting gear consists of a cam gear which drives the eccentric shafts 18, 19 non-uniformly.
  • the cam mechanism is mounted in the machine frame 5 and can be driven directly via an electric motor or indirectly, for example via a belt transmission, a linkage or comparable drives.
  • the eccentric shafts 18, 19 move the upper table 10 in the direction of arrow 17 and against the spring force onto the sheet 6 to be punched. After punching, the upper table moves again in the direction of the eccentric shafts 18, 19 and a new sheet 6 can be placed between the upper table 10 and the under table 9 are moved.
  • the time course of the lifting movement of the upper table 10 is shown in FIG. 3.
  • FIG. 3 shows a diagram in which the lifting movement of the upper table 10 is plotted as a dashed line as a function of the angular degree of the eccentric shafts.
  • the position 0 ° describes the bottom dead center UT of the upper table 10, the position OT the top dead center of the movement of the top table 10 and the position 360 ° the next bottom dead center UT of the top table 10 as the next stamping and / or embossing step.
  • the dashed line of movement of the lifting table shows an almost sinusoidal course of a conventional eccentric shaft drive for an upper table 10.
  • the gripper bar stands still. It is in the rest R.
  • the gripper bar 8 is accelerated until the time OT.
  • the acceleration time of the gripper bar is marked with BG.
  • the gripper bar is also decelerated VG until it comes to a standstill.
  • the rest period R follows.
  • the upper table 10 To move the gripper bar 8, the upper table 10 must have a certain minimum stroke Hmin. exhibit. This minimum stroke Hmin results in a time window ZF during which the gripper bar 8 must have moved the sheet 6 out between the upper table 10 and the lower table 9 and reinserted it. Outside of this time ZF, only small acceleration and deceleration phases of the gripper bar 8 can lie.
  • the acceleration phase of the upper table 10 from bottom dead center UT is almost identical to the deceleration phase before top dead center OT.
  • a shift in the time window ZF can only be achieved by a shift in the time window means for example a steeper increase in the movement curve of the upper table 10. Due to the steeper increase in the movement curve of the upper table 10, the time window ZF can be shifted towards an earlier start. This results in Shorter rest times R of the gripper bar 8 and thus shorter cycle times for punching sheets 6.
  • the dash-dotted line is intended to illustrate the steeper acceleration of the upper table 10.
  • the cycle times for the acceleration BG and the deceleration VG of the gripper bar are physically bound to limits. Above a certain acceleration, the gripper bar 8 can no longer safely guide the sheet 6, so that the time window is only slightly variable.
  • the use of a non-uniform gear for driving the eccentric shafts 18, 19 causes the upper table 10 to accelerate more, so that on the one hand the time window ZF can be increased or the rest time R can be reduced.
  • the rest time R is reduced, so that the cycle time in the punching station 2 of the punching and embossing machine is shortened.
  • a reduction in the rest time R from 90 ° to 70 ° can be specified, which corresponds to a reduction in the cycle time by approximately 5 to 6%.
  • the dash-dotted line clearly shows that the time window required for the movement of the gripper bar can be shifted by the steeper increase in the acceleration curve of the upper table 10.
  • the time window for moving the gripper bar is predetermined by the physical limits. The time saved by the steeper increase in the movement curve of the upper table 10 can thus be used to reduce the cycle time of the punching station 2.

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)
EP03018703A 2002-09-25 2003-08-25 Dispositif pour gaufrer et découper des feuilles Withdrawn EP1403013A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10244585 2002-09-25
DE10244585A DE10244585A1 (de) 2002-09-25 2002-09-25 Bogenstanz- und -prägemaschine

Publications (2)

Publication Number Publication Date
EP1403013A2 true EP1403013A2 (fr) 2004-03-31
EP1403013A3 EP1403013A3 (fr) 2005-02-09

Family

ID=31969552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03018703A Withdrawn EP1403013A3 (fr) 2002-09-25 2003-08-25 Dispositif pour gaufrer et découper des feuilles

Country Status (3)

Country Link
US (1) US20040055481A1 (fr)
EP (1) EP1403013A3 (fr)
DE (1) DE10244585A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111347768A (zh) * 2020-04-14 2020-06-30 无锡城市职业技术学院 连续的快速的机电一体化模切印刷设备

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060043036A1 (en) * 2004-08-30 2006-03-02 Robertson James D Cooler door shelf device with removable product panel
US7080744B2 (en) * 2004-09-22 2006-07-25 Display Industries, Llc. Vented cooler door shelf device
DE102007009670A1 (de) 2007-02-28 2008-09-04 Norbert Quenzel Bogenstanz- und Prägemaschine
DE102007012640A1 (de) * 2007-03-16 2008-09-18 Heidelberger Druckmaschinen Ag Bogenstanz- und -prägemaschine
CN116329228B (zh) * 2023-05-29 2023-09-08 合肥亿昌兴精密机械有限公司 防堆积的压延料接料装置及接料方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601300A1 (de) * 1996-01-16 1997-07-17 Vdw Ev Antriebseinrichtung für eine Umformmaschine

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CH560599A5 (fr) * 1972-02-01 1975-04-15 Madag Maschinen Apparatebau
GB1454516A (en) * 1973-11-05 1976-11-03 Schroter F Process and apparatus for punching or embossing sheets or webs of paper cardboard or similar materal
DE8031208U1 (de) * 1980-11-24 1990-07-12 Bobst S.A., Lausanne Stanzeinrichtung
DE3044084C2 (de) * 1980-11-24 1985-09-26 Bobst S.A., Lausanne Greifereinrichtung für bogenverarbeitende Maschinen
DE3044083C2 (de) * 1980-11-24 1990-05-10 Bobst S.A., Lausanne Stanzeinrichtungen für Stanzautomaten zum Stanzen von Bögen aus Papier, Pappe u. dgl.
US4767393A (en) * 1983-07-22 1988-08-30 Smith Edwin K High speed platen-type die cutter
US4662234A (en) * 1985-10-25 1987-05-05 Tamagawa Machinery Co., Ltd. Driving apparatus for powder compacting press
DE4129029A1 (de) * 1991-08-31 1993-03-04 Blohm Voss Ag Flachbett-stanzmaschine zum stanzen von flachen gegenstaenden, insbesondere boegen aus papier, pappe oder dergleichen
DE4218955C2 (de) * 1992-06-10 1998-02-26 Hasenclever Maschf Sms Antrieb für eine Exzenterwelle einer Exzenterschmiedepresse
US5611246A (en) * 1993-08-20 1997-03-18 Eastman Kodak Company Variable angular velocity coupling for reciprocating devices
JPH0966500A (ja) * 1995-09-01 1997-03-11 Sanwa Seisaku Kk 自動平板打抜き装置
US5692986A (en) * 1995-12-14 1997-12-02 Eastman Kodak Company Variable dwell cycloidal indexing device
US20030150315A1 (en) * 2002-02-11 2003-08-14 Li-Chen Lin Cam gear punch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601300A1 (de) * 1996-01-16 1997-07-17 Vdw Ev Antriebseinrichtung für eine Umformmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111347768A (zh) * 2020-04-14 2020-06-30 无锡城市职业技术学院 连续的快速的机电一体化模切印刷设备
CN111347768B (zh) * 2020-04-14 2022-05-03 无锡城市职业技术学院 连续的快速的机电一体化模切印刷设备

Also Published As

Publication number Publication date
US20040055481A1 (en) 2004-03-25
DE10244585A1 (de) 2004-04-15
EP1403013A3 (fr) 2005-02-09

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