EP1120236B1 - Dispositif d'avance pour le coulisseau supérieur d'une presse - Google Patents

Dispositif d'avance pour le coulisseau supérieur d'une presse Download PDF

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Publication number
EP1120236B1
EP1120236B1 EP01101053A EP01101053A EP1120236B1 EP 1120236 B1 EP1120236 B1 EP 1120236B1 EP 01101053 A EP01101053 A EP 01101053A EP 01101053 A EP01101053 A EP 01101053A EP 1120236 B1 EP1120236 B1 EP 1120236B1
Authority
EP
European Patent Office
Prior art keywords
drive motor
feed
piston tube
spindle
feed device
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
EP01101053A
Other languages
German (de)
English (en)
Other versions
EP1120236A2 (fr
EP1120236A3 (fr
Inventor
Alois Seer
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.)
Maschinen und Stahlbau Julius Lippert GmbH and Co KG
Original Assignee
Maschinen und Stahlbau Julius Lippert 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 Maschinen und Stahlbau Julius Lippert GmbH and Co KG filed Critical Maschinen und Stahlbau Julius Lippert GmbH and Co KG
Publication of EP1120236A2 publication Critical patent/EP1120236A2/fr
Publication of EP1120236A3 publication Critical patent/EP1120236A3/fr
Application granted granted Critical
Publication of EP1120236B1 publication Critical patent/EP1120236B1/fr
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
    • 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 feed device for the upper slide of a press, in particular a pottery press, wherein a drive motor with a Feed spindle is connected, which is mounted in a casing tube, wherein the Feed screw is screwed through a spindle nut, which in a relative is fixed to the casing axially displaceable piston tube, and wherein the Piston tube mounted mounted on the upper slide.
  • Known feeding devices for the upper slide of a press have a single drive motor or hydraulic drive at greater forces, to the upper slide associated with the upper slide Deliver press to the corresponding subform. It is desirable that Delivery of the upper mold until just before the lower mold with a relatively large Feed rate to carry out, and this feed movement until shortly before Reaching the lower mold suitable to reduce to a defined squeezing and Perform impression movement. The return movement of the upper mold after Implementation of the pressing process in the initial or basic position can then again with correspondingly high speed. This movement conditionally in the known feed devices of the type mentioned with a single drive motor, a corresponding drive control.
  • a feed device of the type mentioned for a top slide a Press, wherein a drive motor is connected to a feed screw, which in a jacket tube is stored, is known from JP 6-18 25 99 A.
  • the Feed screw is screwed through a spindle nut, which in a relative is fixed to the casing axially displaceable piston tube.
  • the piston tube is attached to the upper slide of the press.
  • the invention is based on the object, a feed device of the above called type to create, with which in a relatively simple constructive Build up an exact feed movement of the upper mold or the upper slide of the Press to the lower mold with an adjoining precisely controlled Slowed pressure and impression movement as well as a fast Return movement is possible in the initial or basic position of the upper mold, wherein a long travel distance of the upper mold or the upper slide between its retracted starting or basic position and its extended impression position is feasible.
  • a first drive motor high speed and low torque is that the mounted on the upper slide piston tube with a second Anatriebsmotor is connected, which has a lower speed and a higher Torque has, as the first drive motor, that the spindle nut in the vom Upper slide remote end portion of the piston tube is fixed and that of the Spindle nut axially spaced at the associated piston tube end a Knuckle protection forming scraper is attached.
  • the first high-speed, low-torque drive motor is for Rapid movement of the upper slide and thus attached to the upper slide Upper form provided to the lower mold.
  • the first drive motor With the help of the first drive motor is during the Rapid traverse movement of the upper slide the feed spindle driven by rotation, so that the spindle nut with respect to the loc. Press-resistant casing axially adjusted becomes.
  • This rapid traverse movement of the upper slide with the upper mold towards the lower mold can be assisted by the second drive motor when simultaneously with the Drive the feed spindle by the first drive motor and the spindle nut is driven by means of the second drive motor via the piston tube with. Short before reaching the lower mold, the first drive motor is switched off.
  • the return movement of the upper slide and thus the upper mold into the starting or basic position is then again higher with the help of the first drive motor Speed and low torque.
  • This return movement can be through the second drive motor can be supported.
  • the first drive motor After reaching the starting or Basic position of the upper form and thus a predetermined donor value of Position sensor of the press, the first drive motor is turned off. Will the Retraction movement of the upper mold supported by the second drive motor, so also becomes the second drive motor upon reaching the home or home position off.
  • the spindle nut is fixed to the distal end of the upper slide in the piston tube and axially spaced from the spindle nut at the associated piston tube end a Ausknickêt forming scraper is attached, there is the advantage that a long path difference of the piston tube and thus the upper slide with the Upper mold between its retracted initial or basic position and its extended position impression is feasible.
  • Excellent operational reliability and long life can be achieved when the piston tube is filled with a lubricating oil, wherein the spindle nut has at least one through hole for the lubricating oil and the space provided between the spindle nut and the scraper forms a storage space for overflowing lubricating oil.
  • Such a design of the latter type ensures that the spindle nut runs during the rapid traverse movement in the oil bath, so that the friction between the spindle nut and the feed screw is reduced to a minimum.
  • the Feed spindle in the jacket tube by means of a remote from the upper slide End section provided pendulum ball bearings is stored and / or if that Piston tube is mounted on the upper slide by means of a second self-aligning ball bearing.
  • the first drive motor is a rapid traction servo drive motor is.
  • the second Drive motor is a slow speed servo drive motor.
  • the feed screw can be formed by a ball screw.
  • the first Drive motor with the remote from the upper slide end of the Feed screw is connected by means of a self-locking helical gear.
  • This helical gear may be a Doppelschraubgetriebe.
  • This here retroactive torque is self-locking via the feed spindle Transferring helical gear and added by this self-locking. This results in the advantage that this retroactive torque is not on the first drive motor is passed.
  • the first drive motor is needed therefore advantageously no special braking device.
  • the end position of the latter feed or Auspreßterrorism can precisely defined by a limit stop provided on the press be. Upon reaching this limit stop, the second drive motor connected. Immediately afterwards, the upper mold moves to produce the Imprint freely programmable a precisely defined distance with the help of second drive means from the lower mold.
  • the second drive motor can be used for the upper slide associated with adjacent end portion of the piston tube and with the piston tube be connected by means of a gear transmission.
  • this Gear transmission gearbox it is possible in an advantageous manner that the second Drive means the mentioned feed. Auspreßddling torque limited generated by the gear transmission gear.
  • the feed device according to the invention has the very significant advantage that very large compressive pressures at the same time high power purely mechanical are feasible.
  • Figure 1 shows a front view of a press 10 with a frame 12.
  • the frame 12 has a base plate 14 and guide pillars 16 which from the base plate 14th to stand vertically upwards.
  • a top slide 18th guided vertically.
  • position encoders 20 and 22 are provided with the Sensor organs 24 and 26 cooperate, which provided on the upper slide 18 are.
  • the position sensor 20 is the initial or basic position of the Upper slide 18 and by the position sensor 22 is the Auspreß- and impression position of the upper slide 18 and the attached upper slide 18 upper mold 28 defined.
  • a lower mold 30 On the frame 12 of the press 10 is axially aligned with the upper mold 28, a lower mold 30 provided.
  • the lower mold 30 sets, for example, the outer contour of a Clay pot and the upper mold 28 determines the inner contour of the clay pot.
  • other clay objects or Objects made of other materials are also provided.
  • the jacket tube 34 has a from Upper slide 18 on the distal end portion 38, on which in the casing tube 34 a Self-aligning ball bearing 40 is provided.
  • the self-aligning ball bearing 40 is used for storage one end section 42 of a feed screw 44 of the feed device 32.
  • the end portion 42 of the feed screw 44 is connected via a helical gear 46 with a first drive motor 48 operatively connected.
  • a self-locking Doppelschraubgetriebe. at the first drive motor 48 is preferably a rapid traction servo drive motor high speed and low torque, i. relatively smaller Power.
  • the feed screw 44 is screwed through a spindle nut 50, which in Piston tube 36 is fixed to its end remote from the upper slide 52.
  • the piston tube 36 is connected to its second end portion 54 by means of a second Self-aligning ball bearings 56 mounted on the upper slide 18 rotatably mounted.
  • the piston tube 36 is connected to a second drive motor 58 by means of a Gear transmission gear 60 connected to the second end portion 54 of Piston tube 36 is provided.
  • the second drive motor 58 is around a slow speed servo drive motor, i. lower by a drive motor Speed and high torque.
  • FIGS. 2 and 3 the same details with the same reference numerals as in Figure 1 are designated, so that it is unnecessary, in conjunction with Figures 2 and 3 all these details to describe again in detail.
  • the feed device 32 in its extended position and in Figure 3 in its retracted position shown.
  • the lubricating oil 68 in the drawn in Figure 3 retracted position of Feed device 32 can penetrate into the storage space 66, which is Spindle nut 50 with at least one (not shown) through hole educated.
  • Reference numeral 70 designates a drive motor in FIG Stroke limit of the upper slide 18 and thus to Hubbegrenzung the upper mold 28 is provided.

Landscapes

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

Claims (9)

  1. Dispositif d'avance pour le coulisseau supérieur (18) d'une presse (10), en particulier d'une presse pour le pressage d'articles en terre à cuire, du type dans lequel un moteur d'entraínement (48) est relié à une tige d'avancement (44), qui est montée dans un chemisage tubulaire (34), la tige d'avancement (44) traversant par vissage une tige à filetage intérieur (50), qui est fixée dans un piston tubulaire (36) réglable axialement par rapport à la chemise tubulaire (34), et le piston tubulaire (36) étant monté sur le coulisseau supérieur (18), dispositif dans lequel le moteur d'entraínement relié à la tige d'avancement (44) constitue un premier moteur d'entraínement (48) à vitesse de rotation élevée et à faible couple, qui est relié, par le piston tubulaire (36) monté sur le coulisseau supérieur (18), à un second moteur d'entraínement (58), qui possède une vitesse de rotation plus basse et un couple plus élevé que ceux du premier moteur d'entraínement (48), la tige à filetage intérieur (50) étant fixée dans la section terminale (52) du piston tubulaire (36) éloignée du coulisseau supérieur (18), un racloir (64) constituant, pour la tige d'avancement, une sécurité contre le flambage étant fixé à l'extrémité (62) du piston tubulaire (36) éloignée axialement de la tige à filetage intérieur (50) correspondante.
  2. Dispositif d'avance selon la revendication 1, caractérisé en ce que le piston tubulaire (36) est rempli d'une huile lubrifiante (68), la tige à filetage intérieur (50) présentant au moins un trou pour le passage de l'huile lubrifiante (68), et l'espace prévu entre la tige à filetage intérieur (50) et le racloir (64) constituant un volume de réserve pour l'huile lubrifiante (68) en excès.
  3. Dispositif d'avance selon l'une ou l'autre des revendications 1 ou 2, caractérisé en ce que la tige d'avancement (44) est installée dans le chemisage tubulaire (34) au moyen d'un roulement à billes pendulaire (40) prévu dans la section terminale (38) éloignée du coulisseau supérieur (18).
  4. Dispositif d'avance selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le piston tubulaire (36) est installé sur le coulisseau supérieur (18) au moyen d'un second roulement à billes pendulaire (56).
  5. Dispositif d'avance selon la revendication 1, caractérisé en ce que le premier moteur d'entraínement (48) est un servo-moteur d'entraínement à allure rapide.
  6. Dispositif d'avance selon la revendication 1, caractérisé en ce que le second moteur d'entraínement (58) est un servo-moteur d'entraínement à allure lente.
  7. Dispositif d'avance selon la revendication 1, caractérisé en ce que la tige d'entraínement (44) est constituée par une tige à circulation de billes.
  8. Dispositif d'avance selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le premier moteur d'entraínement (48) est relié à la section terminale (42) de la tige d'avancement (44) éloignée du coulisseau supérieur (18) au moyen d'un mécanisme à vis auto-bloquant (46).
  9. Dispositif d'avance selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le second moteur d'entraínement (58) est disposé sur la section terminale (54) du piston tubulaire (36) voisine du coulisseau (18), et est relié au piston tubulaire (36) au moyen d'un mécanisme à transmission par engrenages.
EP01101053A 2000-01-27 2001-01-18 Dispositif d'avance pour le coulisseau supérieur d'une presse Expired - Lifetime EP1120236B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10003325A DE10003325C2 (de) 2000-01-27 2000-01-27 Vorschubeinrichtung für den Oberschlitten einer Presse
DE10003325 2000-01-27

Publications (3)

Publication Number Publication Date
EP1120236A2 EP1120236A2 (fr) 2001-08-01
EP1120236A3 EP1120236A3 (fr) 2002-10-30
EP1120236B1 true EP1120236B1 (fr) 2005-07-27

Family

ID=7628788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101053A Expired - Lifetime EP1120236B1 (fr) 2000-01-27 2001-01-18 Dispositif d'avance pour le coulisseau supérieur d'une presse

Country Status (3)

Country Link
EP (1) EP1120236B1 (fr)
DE (2) DE10003325C2 (fr)
PT (1) PT1120236E (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10255693B3 (de) * 2002-11-29 2004-09-23 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Verfahren und Vorrichtung zur Herstellung von Keramikgegenständen wie Tassen, Becher o.dgl.
DE10307669B3 (de) * 2003-02-21 2004-10-14 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Druckgußmaschine
DE102005038583B4 (de) * 2005-08-16 2007-12-27 Schuler Pressen Gmbh & Co. Kg Pressen-Antriebsmodul und Verfahren zur Bereitstellung einer Pressenbaureihe
DE102006014705B3 (de) * 2006-03-30 2007-07-05 Krauss-Maffei Kunststofftechnik Gmbh Stanzvorrichtung, insbesondere für Kunststoffformteile
KR101531434B1 (ko) 2007-11-09 2015-06-24 밤코 인터내셔널, 인크. 구동 장치 및 프레스 머신에 대한 방법

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2458796A1 (de) * 1974-12-12 1976-06-16 Wilhelm Platz Presse, vorzugsweise rollen-spindelpresse
WO1983002141A1 (fr) * 1981-12-18 1983-06-23 Hans Fickler Dispositif d'entrainement lineaire a deux moteurs
DE3234520A1 (de) * 1982-09-17 1984-03-22 G. Siempelkamp Gmbh & Co, 4150 Krefeld Spindelpresse
JPS61106221A (ja) * 1984-10-30 1986-05-24 Meiki Co Ltd 射出成形機における駆動装置
US4870898A (en) * 1988-09-19 1989-10-03 Spencer William D Trash compactor with pivoting platen portion
JP3357358B2 (ja) * 1990-07-18 2002-12-16 株式会社アマダ プレス機械
IT1241375B (it) * 1990-12-27 1994-01-10 Prima Ind Spa Azionatore lineare a due velocita' con elevata forza di spinta ed elevata velocita' di traslazione per una macchina operatrice, in particolare per una pressa piegatrice.
JPH06182599A (ja) * 1992-12-16 1994-07-05 Hitachi Shonan Denshi Co Ltd プレス制御装置

Also Published As

Publication number Publication date
DE50106834D1 (de) 2005-09-01
PT1120236E (pt) 2005-09-30
EP1120236A2 (fr) 2001-08-01
EP1120236A3 (fr) 2002-10-30
DE10003325C2 (de) 2002-09-12
DE10003325A1 (de) 2001-08-09

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