EP0127736B1 - Presse pour fabriquer des boulettes à partir de matières en vrac - Google Patents

Presse pour fabriquer des boulettes à partir de matières en vrac Download PDF

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Publication number
EP0127736B1
EP0127736B1 EP84103035A EP84103035A EP0127736B1 EP 0127736 B1 EP0127736 B1 EP 0127736B1 EP 84103035 A EP84103035 A EP 84103035A EP 84103035 A EP84103035 A EP 84103035A EP 0127736 B1 EP0127736 B1 EP 0127736B1
Authority
EP
European Patent Office
Prior art keywords
wheel
press
die
projections
lugs
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
EP84103035A
Other languages
German (de)
English (en)
Other versions
EP0127736A1 (fr
Inventor
Ulrich Walter
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT84103035T priority Critical patent/ATE19739T1/de
Publication of EP0127736A1 publication Critical patent/EP0127736A1/fr
Application granted granted Critical
Publication of EP0127736B1 publication Critical patent/EP0127736B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
    • B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material

Definitions

  • the invention relates to a press for producing pellets from bulk material, in particular feed pellets, which can consist of more or less coarse-grained feed, straw and the like.
  • the invention relates to presses of this type which have a circular die having a plurality of radial press channels and in it a coaxial holder of press rolls, each of which almost touches the die with its circumference.
  • the object of the invention is to provide a press which avoids these disadvantages.
  • this object is achieved in that a wheel is fastened to the die shaft, which has projections on its circumference and a hydraulic tappet is arranged on the housing of the press so that it can move against a spring force in the plane of the wheel gripping behind one of the projections, the wheel can turn gradually by tangential thrust.
  • the projections of the wheel mentioned are preferably sawtooth-shaped and directed in such a way that the tappet lies against the short flank of such a projection, which forms a hollow surface.
  • a shaft which is driven by means of a pulley 25 and has a tubular section 5, which ends in a flange 3, is mounted in a housing.
  • An annular die 2 is clamped between the flange 3 and a flange 4 concentric therewith, which has a plurality of radial bores 2a.
  • Adjoining the flange 4 is an inlet tube 6, the inner edge of which rests on a sealing ring 7 of the housing 1.
  • three press rollers 12 which rotate freely around axes parallel to the tubular shaft 5, are arranged at equal angular intervals and can be adjusted radially to the die 2 by means of adjusting devices in a known manner in such a way that their distance from the inner circumference of the die 2 can be adjusted.
  • the tubular shaft section 5 has radial projections 5a (see FIG. 2) on which a disk-shaped wheel 15 is seated, which has corresponding recesses 15a on its inner circumference.
  • the outer circumference of the wheel 15 has a plurality of sawtooth-shaped projections 16.
  • the short surfaces 16a of these sawtooth-shaped projections form hollow surfaces.
  • a plunger 17, which can be advanced by a hydraulic cylinder 18, rests with its head 17a on one of these hollow surfaces 16a.
  • the cylinder 18 is pivotable about an axis 19 in the plane of the wheel 15.
  • the head 17a of the tappet 17 is pulled against the circumference of the wheel 15 by a spring 20 attached to the cylinder 18.
  • the cylinder 18 is connected by hoses 21, 22 to a pressure oil source in such a way that the tappet 17 is moved upward by the pressure oil and thus the wheel 15 can rotate about its axis during the upward movement.
  • the oil supply to the cylinder 18 is reversed in such a way that pressure oil flows out.
  • the plunger head 17a falls down and is pulled by the spring 20 against the circumference of the wheel 15, so that it engages in a tooth surface 16a of the next tooth.
  • the die 2 With the aid of the plunger 17, the die 2 can thus also be rotated with respect to the press rollers 12 and can thus be released from a stuck position when the drive motor of the die is not sufficient to set the die in motion.

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

Claims (2)

1. Presse pour l'obtention de boulettes à partir de matière pulvérulente qui présente une matrice circulaire présentant une pluralité de canaux de presse radiaux et, dans celle-ci, un support de rouleaux de presse coaxial à elle, chacun de ces rouleaux touchant presque la matrice par leur périphérie, caractérisée par le fait qu'une roue (15) est fixée sur l'arbre (5) de la matrice (2), qui présente des saillies (16) sur sa périphérie et un coulisseau hydraulique (17) est disposé sur le boîtier (1 ) de la presse dans le plan de la roue, mobile contre une force élastique de telle manière qu'il peut faire tourner la roue pas à pas par poussée axiale en étant en prise à chaque fois derrière une des saillies (16).
2. Presse selon la revendication 1, caractérisée par le fait que les saillies (16) de ladite roue (15) sont en forme de dents de scie et dirigées de telle manière que le coulisseau (17) est à chaque fois adjacent au flanc court (16a) de la saillie (16) qui forme une surface creuse.
EP84103035A 1983-04-09 1984-03-20 Presse pour fabriquer des boulettes à partir de matières en vrac Expired EP0127736B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103035T ATE19739T1 (de) 1983-04-09 1984-03-20 Presse zum erzeugen von pellets aus schuettgut.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3312787A DE3312787C1 (de) 1983-04-09 1983-04-09 Presse zum Erzeugen von Pellets aus Schuettgut
DE3312787 1983-04-09

Publications (2)

Publication Number Publication Date
EP0127736A1 EP0127736A1 (fr) 1984-12-12
EP0127736B1 true EP0127736B1 (fr) 1986-05-14

Family

ID=6195841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103035A Expired EP0127736B1 (fr) 1983-04-09 1984-03-20 Presse pour fabriquer des boulettes à partir de matières en vrac

Country Status (3)

Country Link
EP (1) EP0127736B1 (fr)
AT (1) ATE19739T1 (fr)
DE (1) DE3312787C1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4034849A1 (de) * 1990-11-02 1991-09-19 Bayerische Motoren Werke Ag Fluidzellpresse
EP0699517A1 (fr) * 1994-08-29 1996-03-06 Bühler Ag Presse à granuler des produits alimentaires
CN117123140B (zh) * 2023-10-26 2024-02-20 福建大昌盛饲料有限公司 一种鱼饲料的超高微制粒设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE101615C (fr) *
HU179800B (en) * 1979-01-15 1982-12-28 Tatabanyai Szenbanyak Process for the mechanical digestion of green plant raw materials
DD141644A1 (de) * 1979-03-07 1980-05-14 Endler Karl Heinz Presswalzensystem fuer futtermittelpressen

Also Published As

Publication number Publication date
EP0127736A1 (fr) 1984-12-12
DE3312787C1 (de) 1984-02-16
ATE19739T1 (de) 1986-05-15

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