EP0186878B1 - Outil pour presse - Google Patents

Outil pour presse Download PDF

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Publication number
EP0186878B1
EP0186878B1 EP85116343A EP85116343A EP0186878B1 EP 0186878 B1 EP0186878 B1 EP 0186878B1 EP 85116343 A EP85116343 A EP 85116343A EP 85116343 A EP85116343 A EP 85116343A EP 0186878 B1 EP0186878 B1 EP 0186878B1
Authority
EP
European Patent Office
Prior art keywords
plate
adjusting plate
pressing tool
adjusting
base plate
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
Application number
EP85116343A
Other languages
German (de)
English (en)
Other versions
EP0186878A1 (fr
Inventor
Dietger Ing. Grad. Scholdan
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.)
Feldmuehle AG
Original Assignee
Feldmuehle 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 Feldmuehle AG filed Critical Feldmuehle AG
Priority to AT85116343T priority Critical patent/ATE38181T1/de
Publication of EP0186878A1 publication Critical patent/EP0186878A1/fr
Application granted granted Critical
Publication of EP0186878B1 publication Critical patent/EP0186878B1/fr
Expired 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
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/022—Moulds for compacting material in powder, granular of pasta form

Definitions

  • the present invention relates to a pressing tool according to the preamble of claim 1 and its use.
  • Pressing tools of the type mentioned are known as components of hydraulic presses.
  • the lower press plates are arranged in bushings, the so-called press rings, which are usually embedded in tool tables.
  • the shape of the compact is formed by the press ring and by the upper side of the lower press plate which is movable in the vertical direction in the press ring and which is lowered during the filling process with the material to be pressed.
  • the mold is filled by a filling funnel which is filled with the material to be pressed and is slidably mounted above the tool table, the lower opening of which runs a short distance above the tool table.
  • the filling funnel has approximately the same width as the tool table, so that the molds attached in the tool table can be filled in a single operation if the filling funnel is guided away over the tool table.
  • a scraper resting on the tool table is attached to the filling funnel and, after the filling process, wipes off the material that protrudes beyond the mold edge in order to achieve a uniform filling of the mold.
  • the tool table is moved under an upper tool provided with corresponding upper press plates. After the pressing process has been completed, the upper tool is raised, the tool table is brought into its starting position and the finished compact is ejected from the mold by lifting the lower press plate.
  • the wiping movement of the wiping causes a higher filling density of the pressing material in a previously unavoidable way, especially when processing granular pressing material in certain areas of the mold. This is usually the area near the edge of the mold over which the stripper travels in the last phase of its stripping motion.
  • uneven compression in certain areas cannot be accepted, for which reference is made, for example, to highly sensitive electronic components and to cutting and grinding wheels, for which extremely small irregularities lead to imbalance.
  • an adjusting plate with an inclination to the longitudinal axis of the pressing tool is therefore provided below the lower pressing plate in pressing tools of the type described.
  • This adjustment plate is connected to a base plate located below the adjustment plate by mostly three screws evenly distributed on it.
  • the screws or bores can be arranged offset by 120 °.
  • one of the screws is arranged so that it lies on an imaginary line that, starting from the center of the circular shape, corresponds to the direction of movement of the wiper.
  • the screw is attached in the edge region of the mold, in which a higher compression results from the stripping movement of the stripper.
  • a press tool is known from DD-A-73 272, in which the adjustment of the angle of inclination of the lower punch plate is carried out with the device described below. This device consists of a screw bolt guided by a spring or a «hydraulic thrust piston», for which it is stated that the force of the spring is bridged during the pressing process.
  • an adjusting screw is used both when using a spring and when using a hydraulic thrust piston.
  • Base plate and adjustment plate are connected by a screw, whereby nothing is said about the number of these screw connections or about the number of adjustment devices.
  • the disadvantage of this known device can be seen in the fact that the adjustment of the lifting height has to be carried out by means of the adjusting screw described, the accessibility of which is no longer provided if several pressing tools are arranged side by side in a tool table of a hydraulic press.
  • the present invention aims to eliminate these disadvantages and sees its task in providing a press tool in which the setting plate can be adjusted in its inclination to the longitudinal axis of the press tool without the cumbersome removal of the lower press plate.
  • the invention provides the characterizing features of claim 1 in a pressing tool of the type described in the introduction.
  • the present invention allows the adjustment plate to be adjusted without removing the lower press plate and thus leads to a drastic reduction in the times previously required for setting up the tools.
  • the inclination of the adjusting plate of the pressing tool according to the invention can be adjusted, so that the filling height of the pressing tool changes at the desired points, which compensates for the higher filling density at these points and thus, for example the unbalance is counteracted when manufacturing a grinding wheel.
  • a lifting device is arranged in the region of the setting plate opposite the base plate, the piston of the lifting device is arranged such that it is directed against the base plate, while the cylinder forming a unit with the setting plate for adjusting the setting plate in the direction of the lower one Press plate is moved.
  • An embodiment of the present invention has proven to be particularly suitable, in which the piston of the lifting device acting against the adjusting plate or base plate is not flat on the end face but spherical.
  • Known hydraulic fluids in particular glycerin, are suitable for filling the hydraulic lifting device.
  • the hydraulic press (20) shown in FIG. 1 can be loaded on both sides.
  • the press rings (18, 18a) are in tool tables (13, 13a) embedded, in which the lower press plates (19, 19a) are arranged.
  • Filling hoppers (14, 14a) serve to fill the molds formed from press rings (18, 18a) and lower press plate (19, 19a).
  • Strippers (15, 15a) are attached to the filling funnels (14, 14a).
  • Press mandrels (40) are used to create a center hole in the manufacture of cutting discs.
  • the angle a is adjusted, which is formed by the plane formed from the upper side (4) of the setting plate (1) and the longitudinal axis L of the pressing tool. Magnets (23), only one of which is shown, connect the adjusting plate (1) and the lower press plate. Screw bolts (16), of which only one is also shown, serve as in the known pressing tool to connect the setting plate (1) and base plate (2), but are not tightened as in the known pressing tools, so that a certain freedom of movement for the Adjustment of the adjustment plate is given.
  • the functions of the lifting plate (22) and the upper pressing plate (26) correspond to the embodiment of the known pressing tool described in FIG. 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (2)

1. Outil de presse (5) comprenant une plaque de presse inférieure (19) qui est mobile en direction vertikale dans une bague de presse (18) et dont la face supérieure (6) forme avec la bague de presse (18) un moule pour la matière à presser, une plaque de réglage (1 ) qui est placée au-dessous de la plaque de presse (19) inférieure, sur la face supérieure (4) de laquelle est appliquée la plaque de presse inférieure (19) par sa face inférieure et dont l'inclinaison par rapport à l'axe longitudinal L de l'outil de presse (5) peut être réglée, une plaque de base (2) qui est placée au-dessous de la plaque de réglage (1 ) et reliée par des vis (16), qui ne sont pas complètement serrées, à la plaque de réglage (1 ), et dont la face supérieure (29) est en contact avec la face inférieure (34) de la plaque de réglage (1), une plaque de presse supérieure (26) coopérant avec la plaque de presse inférieure (19), ainsi qu'un dispositif de levage (3) hydraulique pour lever la plaque de réglage (1), caractérisé en ce que pour le réglage de l'inclinaison de la plaque de réglage (1), il est prévu le dispositif de levage (3) hydraulique qui est placé ou bien dans la zone (17) de la plaque de réglage (1) opposée à la plaque de base (2), ou bien dans la zone (33) de la plaque de base (2) opposée à la plaque de réglage (1), le dispositif de levage étant commandé par un cylindre émetteur (8) qui est relié à ce dispositif par un conduit (7) souple ou rigide et disposé à l'extérieur de l'outil de presse (5) et dans lequel se trouve un piston (10) réglable par une vis de réglage (12) contre la pression d'un ressort (9) et es destiné à générer la pression dans le dispositif de levage (3) hydraulique, que la plaque de réglage (1) et la plaque de base (2) sont reliées par deux vis (16) et que l'outil de presse (5) fait partie d'une presse (20) hydraulique dans laquelle plusieurs outils de presse (5) sont disposés dans des tables d'outil (13;13a).
2. Utilisation d'un outil de presse selon la revendication 1 pour la fabrication de meules à tronçonner ou à dégrossir.
EP85116343A 1984-12-29 1985-12-20 Outil pour presse Expired EP0186878B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85116343T ATE38181T1 (de) 1984-12-29 1985-12-20 Presswerkzeug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843447831 DE3447831A1 (de) 1984-12-29 1984-12-29 Presswerkzeug
DE3447831 1984-12-29

Publications (2)

Publication Number Publication Date
EP0186878A1 EP0186878A1 (fr) 1986-07-09
EP0186878B1 true EP0186878B1 (fr) 1988-10-26

Family

ID=6254130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116343A Expired EP0186878B1 (fr) 1984-12-29 1985-12-20 Outil pour presse

Country Status (4)

Country Link
EP (1) EP0186878B1 (fr)
AT (1) ATE38181T1 (fr)
DE (2) DE3447831A1 (fr)
ES (1) ES8703772A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102794926A (zh) * 2011-05-25 2012-11-28 来安县隆华摩擦材料有限公司 离合器面片一次性成型模具

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE291257C (fr) *
DE141650C (fr) *
US4450127A (en) * 1982-02-23 1984-05-22 Ptx Pentronix, Inc. Method for compacting powder material with adjustable die and punch assembly

Also Published As

Publication number Publication date
DE3447831A1 (de) 1986-07-03
ES8703772A1 (es) 1987-03-01
EP0186878A1 (fr) 1986-07-09
DE3565796D1 (en) 1988-12-01
ATE38181T1 (de) 1988-11-15
ES550478A0 (es) 1987-03-01

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