WO2007019984A1 - Presse - Google Patents

Presse Download PDF

Info

Publication number
WO2007019984A1
WO2007019984A1 PCT/EP2006/007813 EP2006007813W WO2007019984A1 WO 2007019984 A1 WO2007019984 A1 WO 2007019984A1 EP 2006007813 W EP2006007813 W EP 2006007813W WO 2007019984 A1 WO2007019984 A1 WO 2007019984A1
Authority
WO
WIPO (PCT)
Prior art keywords
press
threaded
press upper
spindles
rotation
Prior art date
Application number
PCT/EP2006/007813
Other languages
German (de)
English (en)
Inventor
Johannes Hülshorst
Original Assignee
Huelshorst Johannes
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
Priority claimed from DE200520012996 external-priority patent/DE202005012996U1/de
Priority claimed from DE200520013002 external-priority patent/DE202005013002U1/de
Application filed by Huelshorst Johannes filed Critical Huelshorst Johannes
Publication of WO2007019984A1 publication Critical patent/WO2007019984A1/fr

Links

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
    • B30B1/18—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 screw means

Definitions

  • the invention relates to a threaded spindles driven press according to the preamble of claim 1.
  • the press upper part is driven by threaded spindles which are each coupled to a drive motor.
  • the press upper part is usually guided over Fuhrungssaulen and moved over the driven spindles for the pressing up and down.
  • the motors (and thus the control of the individual threaded spindles) are synchronized by means of an electronic control, which among other things enables a particularly precise machining of the workpiece.
  • Very high forces act on the press, and in particular on the individual threaded spindles, due to the moving masses and the contact pressures required for pressing during the pressing process, which forces, inter alia, that the threaded spindles are subjected to great stress.
  • strong forces are generated in the longitudinal direction of the threaded spindles due to the moving masses.
  • strong moments are generated which lead to considerable transverse forces can drive. Both types of wear can lead in the long term to wear or damage to the threaded spindles used and thus possibly also to impairment of the pressing result.
  • a further, preferably in the dimensions corresponding, press upper part is provided in addition to the press upper part. This is arranged so that it always moves in a direction opposite to the press upper part during operation of the press.
  • the case acting on the threaded spindles in the axial direction force is absorbed or compensated by the counter-movement of the other press upper part.
  • the threaded spindles used are subjected to different directions of rotation. As a result, the torques occurring due to the rotation of the threaded spindles and drive motors can be partially or completely compensated. Preference is given to four wmdespmdeln used in which two spindles in one direction and two spindles rotate in the opposite direction.
  • FIG. 1 shows a lateral sectional view through the press according to the invention
  • FIG. 2 shows a top view of the press illustrated in FIG. 1,
  • FIG. 3 shows a side sectional view through the press according to the invention
  • Figure 4 - shows a plan view of the m Figure 3 shown press
  • Figure 5 - shows a schematic view of the principle of operation to compensate for the lateral forces.
  • the exemplary embodiment of a press shown in FIG. 1 has a press bottom part 1 placed on the bottom 6 and a corresponding press top part 2 a as well as a further press top part 2 b.
  • the press upper part 2 a and the further press upper part 2 b are relative to the press lower part 1 movable.
  • Both press upper parts 2 a, 2 b are guided over guide tubes 3, which are guided by receptacles in the respective upper press part 2 a, 2 b.
  • the drive of the press upper part 2 is effected by threaded spindle elements 4A, 4B, which connect the press lower part 1 with the respective press upper part 2a, 2b.
  • the press upper parts 2a, 2b are for this purpose provided with corresponding mating threads (not shown), which cooperate with the corresponding threads of the threaded spindle elements 4A, 4B.
  • the threaded spindle elements 4A, 4B are rotated by motors 5 in rotation.
  • a mating thread usually a threaded nut is used, which is anchored in the press upper part 2a and 2b and which receives a through an opening in the press upper part 2a and 2b guided threaded spindle 4.
  • each lock element 4A, 4B is driven by a corresponding motor 5.
  • four Fuhrungssaulen 3 are provided.
  • the number of threaded spindle elements or motors and Fuhrungssaulen may vary depending on the application and size of the press. According to the invention (see Figure 1) is now provided that the direction of movement of the press upper parts 2a and 2b in driving the Gewmdespindelieri 4A, 4B opposite he follows ⁇ .
  • Each threaded spindle element 4A, 4B therefore has two threaded sections 4A and 4B, whose threads are formed in opposite directions.
  • the lower threaded portion 4A cooperates with the press upper part 2a, the upper threaded portion 4B is coupled to the further press upper part 2b.
  • Both threaded sections 4A, 4B are combined to form a spinner element and are driven by a motor 5. It is preferred that the press tops 2a, 2b have approximately the same dimensions and about the same mass.
  • the press upper part 2a is moved, for example by means of the threaded portion 4A in the direction of the arrow Pl. Due to the mating nature of the threaded portion 4B, the other press upper part 2b simultaneously moves in the direction of the arrow P2. The same applies to the other direction: a movement of the press upper part 2a in the direction of the arrow P2 causes a simultaneous movement of the further press upper part 2b in the direction of the arrow Pl.
  • the exemplary embodiment of a press shown in FIG. 3 has a press bottom part 1 placed on the bottom 6 and a corresponding press top part 2 a.
  • the press upper part 2a is movable relative to the press bottom part 1 and is guided over guide tubes 3, which are guided in receptacles 2c in the press upper part 2a or 2b (not shown).
  • This principle to be explained can also be applied to one-piece press upper parts according to the prior art. The further description therefore takes place with respect to the press upper part 2a.
  • the drive of the press upper part 2a is effected by threaded spindles 4, which connect the press base 1 with the press upper part 2a, wherein they cooperate with a mating thread (not shown) in the press upper part 2a and are rotated by a motor 5 in rotation.
  • a mating thread usually a threaded nut is used, which is anchored in the press upper part 2a and a guided through an opening 2d in the press upper part 2a threaded spindle del 4 takes up.
  • the mating thread is in the press upper part and the drive motor 5 in the press base 1. Exactly the reverse arrangement would be conceivable.
  • the press upper part 2a is movable relative to the lower press part 1 in the vertical direction.
  • four threaded spindles 4.1, 4.2, 4.3 and 4.4 are preferably used, which are arranged in a rectangle in the four corners of the press lower part 1 or press upper part 2a and can each consist of threaded elements 4A, 4B (see FIG ).
  • Each spindle is driven by a corresponding motor 5.1, 5.2, 5.3 and 5.4 respectively.
  • four guide columns 3 are provided. The number of threaded spindles or motors and Feuh ⁇ tion columns may vary depending on the application and size of the press.
  • the inventive principle is illustrated by the example with four threaded spindles 4.1, 4.2, 4.3, 4.4 in FIG.
  • the Gewindungspmdeln 4.1, 4.2, 4.3, 4.4 are indicated only schematically by their axes of rotation.
  • press base 1 and press upper part 2a are drawn only schematically as a plane.
  • Erfmdungsge felicit is provided to drive the spindles with different directions of rotation. This is indicated by the round arrows, wherein the solid line arrows (arrows a) indicate a first preferred mode of operation and the dotted line arrows (arrows b) indicate a second preferred mode of operation.
  • two adjacent spindles respectively 4.1, 4.4 or 4.3, 4.2 the same direction of rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

L'invention concerne une presse comprenant une partie inférieure (1) et une partie supérieure (2a) mobile dans le sens vertical relativement à la partie inférieure, au moyen d'éléments de tiges filetées (4A, 4B) parallèles, lesquels (4A, 4B) relient la partie inférieure (1) et la partie supérieure (2a). Une autre partie supérieure (2b) coopère avec les éléments de tiges filetées (4A, 4B) de manière à être déplacée dans une direction lors de la rotation des éléments de tiges filetées (4A, 4B), cette direction étant opposée au sens de déplacement de la partie supérieure (2a) transmis par les éléments de tiges filetées (4A, 4B).
PCT/EP2006/007813 2005-08-18 2006-08-08 Presse WO2007019984A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE200520012996 DE202005012996U1 (de) 2005-08-18 2005-08-18 Presse
DE202005013002.8 2005-08-18
DE200520013002 DE202005013002U1 (de) 2005-08-18 2005-08-18 Pesse
DE202005012996.8 2005-08-18

Publications (1)

Publication Number Publication Date
WO2007019984A1 true WO2007019984A1 (fr) 2007-02-22

Family

ID=36954538

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/007813 WO2007019984A1 (fr) 2005-08-18 2006-08-08 Presse

Country Status (1)

Country Link
WO (1) WO2007019984A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US161847A (en) * 1875-04-06 Improvement in cotton and hay presses
US3512476A (en) * 1967-09-13 1970-05-19 Otto Georg Screw press with two or more screws
EP0582476A1 (fr) * 1992-08-07 1994-02-09 Tsukishima Kikai Co. Ltd. Dispositif d'actionnement pour deux parties d'outil pour poinçonner, couper et emboutir
DE19821159A1 (de) * 1998-05-12 1999-11-25 Johannes Huelshorst Tiefziehpresse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US161847A (en) * 1875-04-06 Improvement in cotton and hay presses
US3512476A (en) * 1967-09-13 1970-05-19 Otto Georg Screw press with two or more screws
EP0582476A1 (fr) * 1992-08-07 1994-02-09 Tsukishima Kikai Co. Ltd. Dispositif d'actionnement pour deux parties d'outil pour poinçonner, couper et emboutir
DE19821159A1 (de) * 1998-05-12 1999-11-25 Johannes Huelshorst Tiefziehpresse

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121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase

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