EP1452301A2 - Presse à genouillère - Google Patents

Presse à genouillère Download PDF

Info

Publication number
EP1452301A2
EP1452301A2 EP04004209A EP04004209A EP1452301A2 EP 1452301 A2 EP1452301 A2 EP 1452301A2 EP 04004209 A EP04004209 A EP 04004209A EP 04004209 A EP04004209 A EP 04004209A EP 1452301 A2 EP1452301 A2 EP 1452301A2
Authority
EP
European Patent Office
Prior art keywords
lever
shaft
toggle
press
levers
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
EP04004209A
Other languages
German (de)
English (en)
Other versions
EP1452301A3 (fr
EP1452301B1 (fr
Inventor
Reinhold Schulte
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.)
SCHULTE, REINHOLD
Original Assignee
Niemann Wolfgang Dipl-Ing
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 Niemann Wolfgang Dipl-Ing filed Critical Niemann Wolfgang Dipl-Ing
Publication of EP1452301A2 publication Critical patent/EP1452301A2/fr
Publication of EP1452301A3 publication Critical patent/EP1452301A3/fr
Application granted granted Critical
Publication of EP1452301B1 publication Critical patent/EP1452301B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • 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
    • B30B1/268—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 using a toggle connection between driveshaft and press ram
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/1892—Lever and slide
    • Y10T74/18952—Lever and slide toggle transmissions

Definitions

  • the invention relates to a toggle press with two pivotable by a joint connected levers, the first at its free end with a press tool is connected and the second at the free end rotatably on one by a drive rotatable shaft.
  • a toggle press includes a two by one toggle mechanism Articulated levers, the free ends on the one hand with the associated Machine frame, on the other hand connected with a tool or ram are.
  • the ram By extending the knee joint, the ram can move in the direction of a Workpiece are advanced.
  • the drive of the press can be exerted by pressure on the knee joint, but also by swiveling the one mounted on the frame Lever done using a driven shaft. With the latter
  • the present invention is concerned with construction.
  • Toggle presses can be built very stable and allow transmission great powers.
  • the design of a toggle press becomes difficult, though Workpieces of different thicknesses should be machined because of the setting of the stroke and in particular a fine adjustment to adapt to different Material thicknesses are not possible without complex additional constructions is.
  • a toggle press reaches in the end of its movement up to the complete extension of the two levers very high forces, which theoretically go to infinity.
  • a slightly wrong setting of a toggle press can therefore either destroy the press or cause that only insufficient machining force is applied.
  • Toggle Presses are therefore not readily suitable for processes in which on End of a longer approach stroke with only a relatively short working stroke correspondingly higher force is required.
  • hydraulic or compressed air systems are not available in every company, and hydraulic drive systems often cannot or should not be used because they are always at risk of job pollution Cause leak oil and for example in companies in the food industry cannot generally be used due to existing regulations.
  • the invention is therefore based on the object, a toggle press of the above To create type that has a purely mechanical drive, its stroke is composed of a relatively quickly with relatively little force Approach stroke and a subsequent, shorter, with high force stroke and the one setting of the stroke and the Force applied at the end of the stroke with relatively simple means.
  • the rotation of the shaft is only a pivot of the second lever, the leads to stretching or buckling of the knee lever.
  • the non-rotatable connection between the shaft and the second lever is released, the rotation of the shaft causes a shift due to the action of the eccentric of the second lever in its longitudinal direction.
  • the non-rotatable connection released between the second lever and the shaft when the toggle lever is essentially in the extended position it results from the eccentric a slight longitudinal displacement of that at the outer end of the first Lever attached tool when applying a high pressing force.
  • the inventive combination of a toggle press with an eccentric press has the particular advantage over normal toggle presses that it enables adjustment or fine adjustment for the area of the working stroke.
  • an adjustment of the working stroke is probably with regard to the force as well as with regard to the way alone by twisting the shaft and thus an adjustment of the angular position of the eccentric possible.
  • the temporary locking of the second lever on the shaft can be different Way.
  • a spring that is between one shoulder on the shaft and one point of the second lever. Only when the spring force is overcome can the shaft move in relation to the second Turn the lever.
  • Magnetic locking between the shaft and the second lever or a purely mechanical lock, for example is released when the toggle lever approaches the extended position.
  • the compound of second lever with the shaft so that it only rotates to the extent that specified Conditions the non-rotatable connection can be released.
  • the press according to the invention changes from one Toggle press in an eccentric press.
  • a stop is provided on the machine frame, which is the toggle lever holds in the substantially extended position. If the toggle reached this position, the non-rotatable connection between the shaft and released the second lever.
  • At least one radial arm is attached to the shaft, one Attachment point of a compression spring, the other attachment point is provided on the second lever.
  • a press frame 10 and a toggle lever 12 is designated.
  • the Toggle lever 12 is composed of a first lever 14 and a second Levers 16 which are pivotally connected to one another in an axis 18.
  • the first lever 14 is in the region of its free end with the aid of a Axis 20 connected to a pressing tool 22, which in a guide 24 upwards and can be moved downwards on the press frame 10.
  • a pressing tool 22 located in Fig. 1 in its highest position. It can be lowered except for a counter tool 26 provided at the bottom of the press frame 10, such as then will be explained in more detail.
  • the second lever 16 is fastened on a shaft 28 which is in the press frame 10 rotatably mounted and set in rotation by a drive, not shown is.
  • the second lever 16 is non-rotatably, but releasably attached to the shaft 28.
  • a compression spring 30 which is a gas pressure spring, can be a helical compression spring or some other spring element.
  • the compression spring 30 is supported in a first bearing 32 on the second lever 16 and in a second bearing 34 on an arm 36, which rotatably on the shaft 28 is attached and projects radially from this to the top right in FIG. 1.
  • the first bearing 32 is located on the second lever 16 in a position that is most distant from the shaft 28.
  • a stop 38 located on the second lever 16 near the position of the shaft 28.
  • the stop can be seen particularly clearly in FIG. 4.
  • Fig. 1 thus shows the fully extended position of the compression spring 30. Since the arm 36 rotatably with the shaft 28 is connected and the compression spring 30 supports the bearing 34 on the arm 36 presses against the stop 36 on the second lever 16, the second lever 16 rotatably connected to the shaft 28, as long as no forces occur, the spring force overcome the compression spring 30.
  • FIG. 2 which is a further position of the toggle lever in the Lowering movement of the pressing tool 22 shows, form the shaft 28, the second Lever 16 and the compression spring 30 a rigidly connected unit.
  • FIG. 4 The execution of the working stroke is illustrated in FIG. 4. First it should be noted that in the position of FIG. 3, in which the toggle lever 12 is completely stretched, the second lever 16 with a stop 40 against one Counter stop 42 is hit, which is fixedly attached to the press frame 10.
  • the toggle lever 12 is therefore held in the extended position. Another Swiveling of the second lever 16 in the counterclockwise direction is not possible.
  • a magnetic coupling or a mechanical bolt can be considered, which are unlocked by the meeting of the two stops 40, 42.
  • the stop provided on the second lever 16 40 which touches the counter stop 42 fixed to the press frame, preferably is designed as a stop roller.
  • the shaft 28 rotates with the eccentric 44 moves within the bore 46 of the second lever 14 Arrangement from the two levers 14, 16 slightly downwards, so that the stop roller 40 can roll on the counter stop 42. Between the stop 40 and the counter-stop 42 could alternatively also be a sliding contact occur.
  • the toggle press according to the invention is therefore through for part of the stroke an eccentric press has been added. While using the toggle press the eccentric press ensures that the approach stroke is relatively rapid the short working stroke requiring high power.
  • a fine adjustment of the working stroke can be done by changing the angular position of the eccentric 44 with respect to the shaft 28.
  • a motor comes as the drive into consideration, the shaft 28 back and forth over a predetermined angular position turns here.
  • the press can also be designed as a hand crank press become.
  • the compression spring has another advantage in that it ensures that the Eccentric is pushed back into the starting position after the working stroke.
  • bearings 32, 34 are on the counter stop 42 opposite side of the toggle lever. That attached to the first lever 16 Bearing 32 is on a projection projecting in this direction 48, and the other bearing 34 is arranged on the arm 36, the pivoting movement thereof also on the side of the second lever 16 takes place.
  • the toggle press is shown so that the press tool 22 is moved from top to bottom.
  • this orientation means not the only application of the toggle press according to the invention.
  • the Lifting movement of the pressing tool 22 can also take place in the horizontal direction or from the bottom up.
  • the pressing tool 22 can be a press stamp, an embossing stamp, a punching tool, a knife or the like his.
  • Fig. 5 shows a vertical section perpendicular to the plane of the drawing in Fig. 3 and 4 with partly slightly offset cutting plane. Above all, it can be seen that the Arm 36 is provided twice on both sides of the eccentric 44. The two Arm parts 36 are fixed on the shaft 28 in the direction of rotation by pins 50 in the direction parallel to the axis of the shaft 28 through the arm parts in the Eccentric 44 run into it.
  • FIG. 5 shows that the first lever 14 also consists of two parallel, lever parts lying on both sides of the second lever 16. The remaining Parts shown in Fig. 5 are explained by the use of the reference numerals in which the already described figures of the drawing have been presented.
EP04004209.5A 2003-03-01 2004-02-25 Presse à genouillère Expired - Fee Related EP1452301B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10309030A DE10309030B3 (de) 2003-03-01 2003-03-01 Kniehebelpresse
DE10309030 2003-03-01

Publications (3)

Publication Number Publication Date
EP1452301A2 true EP1452301A2 (fr) 2004-09-01
EP1452301A3 EP1452301A3 (fr) 2009-09-09
EP1452301B1 EP1452301B1 (fr) 2013-07-03

Family

ID=32748141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04004209.5A Expired - Fee Related EP1452301B1 (fr) 2003-03-01 2004-02-25 Presse à genouillère

Country Status (4)

Country Link
US (1) US7011019B2 (fr)
EP (1) EP1452301B1 (fr)
DE (1) DE10309030B3 (fr)
ES (1) ES2427635T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2218575A1 (fr) 2009-02-11 2010-08-18 MULTIVAC Sepp Haggenmüller GmbH & Co KG Machine d'emballage dotée d'une station de travail comportant un dispositif de levage électrique équipé d'une course grosse et fine
CN103603928A (zh) * 2013-11-12 2014-02-26 武汉海阔科技有限公司 一种双楔形传动换向机构

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60324848D1 (de) * 2003-10-20 2009-01-02 Pascal Eng Corp Ausgleichsmechanismus für drehwelle
US8024952B2 (en) * 2008-03-26 2011-09-27 National Machinery Llc Slide with segmented tooling held closed by stationary remote spring
US11273613B2 (en) * 2008-06-23 2022-03-15 Compaction Technologies, Inc. Trash compactor
US10029434B2 (en) * 2011-04-20 2018-07-24 Compaction Technologies, Inc. Trash compactor
WO2014104993A1 (fr) * 2012-12-28 2014-07-03 Bes Isletme Arge Ve Muhendislik Cozumleri̇ Sanayi Ticaret Limited Sirketi Système mécanique produisant une course prolongée et une puissance élevée au moyen d'un entraînement rotatif
EP3305664B1 (fr) * 2016-10-10 2020-09-16 Hamilton Sundstrand Corporation Mécanisme de libération d'actionneur
BE1025546B9 (nl) * 2017-12-22 2019-04-11 Cnh Ind Belgium Nv Strohaakopstelling voor een landbouwbalenpers
CN108814074B (zh) * 2018-07-11 2021-04-23 赵永锦 一种轮椅固定基板用旋转装置
CN109016617A (zh) * 2018-08-06 2018-12-18 张小敏 一种易拉罐回收用压缩装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222913A (en) 1962-09-20 1965-12-14 Leopold Otto Toggle press
DE10051042A1 (de) 2000-10-14 2002-05-02 Niemann Wolfgang Antriebszylinder für Stanzen, Prägemaschinen, Pressen und dergleichen

Family Cites Families (13)

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FR1078980A (fr) * 1952-11-08 1954-11-24 Embrayage pour mouvement alternatif axial
CS148900B1 (fr) * 1970-06-10 1973-05-24
ZA715348B (en) * 1970-08-20 1972-04-26 B & R Prod Proprietary Ltd Multi-purpose sheet metal folding press,punch,and nibbling machine
US4034666A (en) * 1975-12-08 1977-07-12 Oleg Pavlovich Bigun Crank press
GB2142263B (en) * 1983-06-29 1987-08-12 Vtuz Mo Avtomob Z Likhacheva Z Press
DE3703413A1 (de) * 1987-02-05 1988-08-18 Schuler Gmbh L Einrichtung zur steuerung der hublage des stoessels einer stanzmaschine
US5109766B1 (en) * 1990-10-31 1994-03-22 Minster Machine Co Adjustable stroke punch press
JP2723046B2 (ja) * 1994-06-14 1998-03-09 村田機械株式会社 トグル式パンチ駆動装置
JP3461690B2 (ja) * 1997-05-28 2003-10-27 アピックヤマダ株式会社 モータプレス機
JPH1158078A (ja) 1997-08-22 1999-03-02 Etsuki:Kk クランクシャフトレスペンジュラムリンク圧着機
DE19810487A1 (de) * 1998-03-11 1999-09-16 Schuler Pressen Gmbh & Co Exzenterpresse mit verstellbaren Exzentern
DE29903341U1 (de) * 1998-07-23 1999-07-01 Smeral Brno A S Kniehebelpresse mit hydraulischer Überlastsicherung
DE10112983C1 (de) * 2001-03-17 2002-07-11 Markus Angenheister Antriebsvorrichtung für ein Presswerkzeug oder dergleichen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222913A (en) 1962-09-20 1965-12-14 Leopold Otto Toggle press
DE10051042A1 (de) 2000-10-14 2002-05-02 Niemann Wolfgang Antriebszylinder für Stanzen, Prägemaschinen, Pressen und dergleichen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2218575A1 (fr) 2009-02-11 2010-08-18 MULTIVAC Sepp Haggenmüller GmbH & Co KG Machine d'emballage dotée d'une station de travail comportant un dispositif de levage électrique équipé d'une course grosse et fine
CN103603928A (zh) * 2013-11-12 2014-02-26 武汉海阔科技有限公司 一种双楔形传动换向机构
CN103603928B (zh) * 2013-11-12 2016-08-31 武汉海阔科技有限公司 一种具有双楔形槽半连杆的传动换向机构

Also Published As

Publication number Publication date
DE10309030B3 (de) 2004-09-16
ES2427635T3 (es) 2013-10-31
US7011019B2 (en) 2006-03-14
US20040168502A1 (en) 2004-09-02
EP1452301A3 (fr) 2009-09-09
EP1452301B1 (fr) 2013-07-03

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