EP0679448B1 - Appareil de tamisage à ondes de tension - Google Patents

Appareil de tamisage à ondes de tension Download PDF

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Publication number
EP0679448B1
EP0679448B1 EP94103764A EP94103764A EP0679448B1 EP 0679448 B1 EP0679448 B1 EP 0679448B1 EP 94103764 A EP94103764 A EP 94103764A EP 94103764 A EP94103764 A EP 94103764A EP 0679448 B1 EP0679448 B1 EP 0679448B1
Authority
EP
European Patent Office
Prior art keywords
screening apparatus
tension wave
wave screening
motion
cross members
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
EP94103764A
Other languages
German (de)
English (en)
Other versions
EP0679448A1 (fr
Inventor
Siegfried Balfauz
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.)
Hein Lehmann Trenn und Fordertechnik GmbH
Original Assignee
Hein Lehmann Trenn und Fordertechnik GmbH
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 Hein Lehmann Trenn und Fordertechnik GmbH filed Critical Hein Lehmann Trenn und Fordertechnik GmbH
Priority to AT94103764T priority Critical patent/ATE144920T1/de
Priority to DE59401001T priority patent/DE59401001D1/de
Priority to EP94103764A priority patent/EP0679448B1/fr
Publication of EP0679448A1 publication Critical patent/EP0679448A1/fr
Application granted granted Critical
Publication of EP0679448B1 publication Critical patent/EP0679448B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/48—Stretching devices for screens
    • B07B1/485—Devices for alternately stretching and sagging screening surfaces

Definitions

  • the invention relates to a tensioning shaft sieving machine with a plurality of parallel cross-members between which flexible strip-shaped screen elements are fastened, each second cross-member being moved by a first movement system and the second cross-members lying therebetween by a second movement system such that the screen elements are alternately stretched and compressed.
  • the object of the invention is to improve the drive of a tensioning shaft sieving machine of the type mentioned in such a way that high durability and small dimensions are achieved with simple construction and assembly.
  • a tension element is understood to mean a wide variety of parts that can withstand tensile loads and are otherwise flexible, such as a rope, chain, belt, cable or belt.
  • a particularly rotating traction element ensures a structurally particularly simple drive in which the forces are optimally distributed. The dimensions and weights of the machine are reduced and the sieving results are optimal.
  • the rectilinear cross-beam movement can be converted into a) slight lifting when tensioning the sieve trays, b) discharge plane of the sieve trays inclined in the direction of the sieve, or c) discharge levels of the sieve plates inclined towards the sieve direction.
  • Several crossbeams of the same direction of movement can be firmly connected to each other at the ends in groups. So it can Steering arm guidance to be carried out in groups. This enables different discharge levels distributed over the screen length.
  • a section of the same movement system is attached to both ends of the crossbeams.
  • a particularly simple drive of the highest synchronicity is achieved if all sections are formed by a single tension element which is moved back and forth by a drive in its direction of extension and forms both movement systems.
  • the pulling element can be guided twice over a plurality of deflection rollers on both sides and on one end of the screening machine in order to form two sections on each side.
  • the two sections of one side of the screening machine can be moved alternately in opposite directions.
  • the rotatable or pivotable cross members can also be attached to the sections via swivel arms.
  • the cross members and / or swivel arms of a movement system are connected to one another by coupling elements, via which a part of the cross members can be moved.
  • a roller deflect the pulling element by 180 degrees and on the second machine end four rollers deflect the pulling element by 90 degrees.
  • the sections of each machine side can be on top of or next to each other.
  • a particularly simple and safe drive is given when the tension element or the tension elements by a single one Eccentric drive can be moved back and forth, which is preferably mounted at one end of the machine.
  • the tension element or the tension elements can be moved back and forth by at least one cylinder-piston unit.
  • cross members Q are movably mounted transversely to the transport direction of the material to be screened. Every second crossbar Q1 is moved back and forth in the opposite direction to the second crossbars Q2 located therebetween, so that flexible sieve elements 2 stretched between the crossbars Q1, Q2 are alternately tensioned and compressed.
  • an endless rope 3 is attached, which rotates twice on three sides of the screening machine.
  • the endless rope 3 forms a first rope section 3a on the first long side of the machine, which is deflected at the end of this long side by a deflection roller 4 by 180 degrees in order to then be returned on the same long machine side and forms a second rope section 3b there.
  • the two rope sections 3a, 3b are deflected by 90 ° by two deflecting rollers 5 in order to run along the end face and form rope sections 3c, 3d there.
  • Two further deflection rollers 6 on the other longitudinal side deflect the two rope sections 3d, 3c in turn, so that in turn two rope sections 3a, 3b are formed on the second machine longitudinal side, which are connected to one another at the end of this longitudinal side by a second 180 degree deflection roller 4.
  • the first ends of the crossbars Q1 are fastened to the first cable section 3a and the second ends of the first crossbars Q1 to the first cable section 3a of the opposite machine longitudinal side.
  • the second crossbars Q2 are fastened at the first end to the second cable section 3b on one long side and at the second end to the second cable section 3b on the other long side. It is important to ensure that the first rope section 3a of one long side is connected to the second rope section of the second long side via the rope section 3c and that the second rope section 3b of the first long side is connected to the first rope section of the second long side via the rope section 3d of the front side is. This is the only way to ensure that each crossbar Q1, Q2 is always moved with its two ends in the same direction by the endless cable 3.
  • Retractable tensioning rollers 8 are arranged near the deflection rollers 4 in order to give the endless rope 3 sufficient tension.
  • the cable sections do not necessarily have to be attached directly to the crossbars, but can also be arranged as intermediate parts, in particular in the form of swivel arms and / or control arms as well as coupling elements.
  • two or more cross members of a movement system can also be connected to one another via coupling elements, so that the cable sections do not have to be fastened to each cross member. In special cases it can also be sufficient to attach the crossbars to the endless rope with only one end.
  • the rope does not necessarily have to be endless, but it is sufficient to use a rope with two ends, the two rope ends preferably being attached to the drive.
  • Various constructions can be used as drives.
  • a rope instead of a rope, a chain, a belt, a cable or a band made of a wide variety of materials can also be used.
  • a hydraulic or pneumatic cylinder-piston unit can also be used.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Confectionery (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Claims (11)

  1. Machine de tamisage à ondes de tension, avec plusieurs traverses transversales (Q1, Q2) parallèles entre lesquelles sont fixés des éléments de tamis (2) flexibles en forme de bandes, une traverse transversale (Q1) sur deux étant déplacée par un premier système de déplacement et les secondes traverses transversales (Q2) se trouvant entre elles étant déplacées par un second système de déplacement de telle manière que les éléments de tamis (2) sont alternativement étirés et comprimés,
    caractérisée en ce qu'une première section (3a) d'un élément de traction est fixée aux première traverses transversales (Q1) et une seconde section (3b) de l'élément de traction est fixée aux secondes traverses transversales (Q2), directement ou par des pièces intermédiaires, des déplacements du premier système de déplacement pouvant être réalisés par la première section et des déplacements du second système de déplacement par la seconde section.
  2. Machine de tamisage à ondes de tension selon la revendication 1,
    caractérisée en ce qu'une section (3a, 3b) du même système de déplacement est fixée respectivement aux deux extrémités des traverses transversales (Q1, Q2).
  3. Machine de tamisage à ondes de tension selon la revendication 1 ou 2,
    caractérisée en ce que toutes les sections (3a-3d) sont formées par un élément de traction sans fin (3) unique qui est déplacé en va-et-vient dans sa direction d'extension, par un entraînement (7) et qui forme les deux systèmes de déplacement.
  4. Machine de tamisage à ondes de tension selon la revendication 3,
    caractérisée en ce que l'élément de traction (3) est guidé sur plusieurs rouleaux de renvoi (4, 5, 6) des deux côtés et sur une face frontale de la machine de tamisage respectivement deux fois, pour former sur les côtés respectivement deux sections (3a, 3b).
  5. Machine de tamisage à ondes de tension selon l'une des revendications précédentes,
    caractérisée en ce que les deux sections de câble (3a, 3b) de respectivement un côté de la machine de tamisage sont mobiles alternativement l'un par rapport à l'autre dans des directions opposées.
  6. Machine de tamisage à ondes de tension selon l'une des revendications précédentes,
    caractérisé en ce que les traverses transversales (Q1, Q2) rotatives ou pivotantes sont fixées aux sections (3a, 3b) par l'intermédiaire de bras pivotants.
  7. Machine de tamisage à ondes de tension selon l'une des revendications précédentes,
    caractérisée en ce que les traverses transversales (Q1, Q2) et/ou les bras pivotants d'un système de déplacement sont reliés les uns aux autres par des éléments d'accouplement par l'intermédiaire desquels une partie des traverses transversales est mobile.
  8. Machine de tamisage à ondes de tension selon l'une des revendications 3 à 7,
    caractérisée en ce que, des deux côtés de la machine, à la première extrémité de la machine, un rouleau (4) fait changer de direction de 180 degrés respectivement l'élément de traction et, à l'autre extrémité de la machine, quatre rouleaux font changer de direction l'élément de traction de 90 degrés (5, 6).
  9. Machine de tamisage à ondes de tension selon l'une des revendications précédentes,
    caractérisée en ce que les sections (3a, 3b, 3c, 3d) de chaque côté de la machine se trouvent les unes au-dessus des autres ou côte à côte.
  10. Machine de tamisage à ondes de tension selon l'une des revendications précédentes,
    caractérisée en ce que l'élément de traction (3) ou les élements de traction sont mobiles en va-et-vient au moyen d'un unique entraînement à excentrique (7) ou de deux, qui est de préférence monté à une extrémité de la machine.
  11. Machine de tamisage à ondes de tension selon l'une des revendications 1 à 9 ,
    caractérisée en ce que l'élément de traction ou les éléments de traction sont mobiles en va-et-vient au moyen d'au moins un ensemble cylindre-piston.
EP94103764A 1994-03-11 1994-03-11 Appareil de tamisage à ondes de tension Expired - Lifetime EP0679448B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT94103764T ATE144920T1 (de) 1994-03-11 1994-03-11 Spannwellsiebmaschine
DE59401001T DE59401001D1 (de) 1994-03-11 1994-03-11 Spannwellsiebmaschine
EP94103764A EP0679448B1 (fr) 1994-03-11 1994-03-11 Appareil de tamisage à ondes de tension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94103764A EP0679448B1 (fr) 1994-03-11 1994-03-11 Appareil de tamisage à ondes de tension

Publications (2)

Publication Number Publication Date
EP0679448A1 EP0679448A1 (fr) 1995-11-02
EP0679448B1 true EP0679448B1 (fr) 1996-11-06

Family

ID=8215765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94103764A Expired - Lifetime EP0679448B1 (fr) 1994-03-11 1994-03-11 Appareil de tamisage à ondes de tension

Country Status (3)

Country Link
EP (1) EP0679448B1 (fr)
AT (1) ATE144920T1 (fr)
DE (1) DE59401001D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017004508A1 (de) * 2017-05-11 2018-11-15 Hein, Lehmann Gmbh Spannwellensiebmaschine
EP3964302A1 (fr) 2020-09-02 2022-03-09 Bühler Insect Technology Solutions AG Dispositif de tamisage à arbres tendeurs destiné à la séparation d'insectes, en particulier de larves d'insectes, ou de vers et de résidus ainsi qu'utilisation d'un tel dispositif de tamisage à arbres tendeurs

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19834894A1 (de) * 1998-08-03 2000-02-10 Hein Lehmann Trenn Foerder Siebmaschine
DE10016979C1 (de) 2000-04-06 2001-08-30 Joest Gmbh & Co Kg Siebvorrichtung
US8757392B2 (en) * 2011-11-23 2014-06-24 Action Vibratory Equipment, Inc. Flexible mat screening apparatus with offset supports
EP2903755B1 (fr) * 2012-10-02 2016-07-20 Binder + Co AG Dispositif et procede pour la classification de materiaux polydisperses
GB2527801A (en) * 2014-07-02 2016-01-06 Kieran Mckiver Screen assembly
CN106975597B (zh) * 2017-03-23 2019-05-14 云南农业大学 波浪式粮食向下转运筛分装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3226574C1 (de) * 1982-07-16 1984-01-19 Hein, Lehmann AG, 4000 Düsseldorf Siebmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017004508A1 (de) * 2017-05-11 2018-11-15 Hein, Lehmann Gmbh Spannwellensiebmaschine
EP3964302A1 (fr) 2020-09-02 2022-03-09 Bühler Insect Technology Solutions AG Dispositif de tamisage à arbres tendeurs destiné à la séparation d'insectes, en particulier de larves d'insectes, ou de vers et de résidus ainsi qu'utilisation d'un tel dispositif de tamisage à arbres tendeurs
WO2022048791A1 (fr) 2020-09-02 2022-03-10 Bühler Insect Technology Solutions Ag Dispositif de criblage à arbre à étirer permettant de séparer des insectes, en particulier des larves d'insectes ou des vers et une matière résiduelle, et utilisation d'un tel dispositif de criblage à arbre à étirer

Also Published As

Publication number Publication date
DE59401001D1 (de) 1996-12-12
EP0679448A1 (fr) 1995-11-02
ATE144920T1 (de) 1996-11-15

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