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EP0296273A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of making a screen element and screen element made by said method

Assignee: HEIN LEHMANN TRENN- und FOERDERTECHNIK GmbH
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Filing: 1987-07-07
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Granted: —
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Expires: 2007-07-07
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Abstract

Abstract Translated from German Die Erfindung betrifft ein Verfahren zum Herstellen eines rechteckförmigen Siebelements aus Kunststoff oder gummielastischem Material, das an der Siebmaschinenunterkonstruktion neben weiteren Siebelementen lösbar befestigbar ist, wobei es eine flexible Siebfläche (1) geringer Dicke aufweist, die rundum an einem Rand (2) befestigt wird, dessen Höhe ein Mehrfaches der Dicke der Siebfläche (1) beträgt und der als Armierung einen Rahmen (3) aufweist. Die Siebfläche (1) wird vor ihrer Befestigung am Rand (2) oder Rahmen (3) ganzflächig erwärmt und hierdurch in alle Richtungen gedehnt, in diesem gedehnten Zustand am Rand (2) oder Rahmen (3) befestigt. Danach wird die Siebfläche (1) zur Erzeugung ihrer Spannung abgekühlt. The invention relates to a method for producing a rectangular sieve element made of plastic or rubber-elastic material, which can be detachably attached to the sieve machine substructure in addition to further sieve elements, wherein it has a flexible sieve surface (1) of small thickness, which is attached all around to an edge (2), whose height is a multiple of the thickness of the screen surface (1) and which has a frame (3) as reinforcement. The screen surface (1) is heated over its entire surface before it is attached to the edge (2) or frame (3) and is thereby stretched in all directions, in this stretched state attached to the edge (2) or frame (3). The screen surface (1) is then cooled to generate its tension.

Inventors

  • 👤 Wolfgang Lehmann
  • 👤 Christian Neukam

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 15:57
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46; B07B1/4609; B07B1/4618; B07B1/4645; B07B1/48; B07B1/50; B29; B29C; B29C37/00; B29C37/0078; B29C37/0082; B29C37/0085; B29C65/00; B29C65/02; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/122; B29C66/1222; B29C66/1224; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/61; B29C70/00; B29C70/04; B29C70/28; B29C70/54; B29C70/56; B29C70/68; B29C70/74; B29C70/76; B29C70/763; B29C70/82; B29D; B29D28/00; B29C66/70; B29C66/71; B29L; B29L2012/00; B29L2031/00; B29L2031/737

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