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Method for extruding a mat of pressed material

A technology for pressing materials and pressing plates, which is applied in applications, presses, household appliances, etc., and can solve the problems of wood-based panels such as decreased strength, rubber bridge fracture, and pressure fluctuations.

Active Publication Date: 2021-05-25
SIEMPELKAMP MASCH & ANLAGENBAU GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In addition, structurally relevant problems in continuous presses have been addressed in practice by the frame construction of the press frame, since such problems can cause pressure fluctuations that cause the already formed glue bridges to break again
This can lead to a decrease in the strength of the manufactured wood-based panels

Method used

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  • Method for extruding a mat of pressed material
  • Method for extruding a mat of pressed material
  • Method for extruding a mat of pressed material

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] figure 1 A continuously operating press for the production of wood-based panels, in particular fibreboard, is shown. In such a continuous press, a mat of pressed material made of glued wood particles, such as glued wood fibers, having an input thickness (E) entering the press in the working direction A is continuously extruded into a wood-based panel or Faux slats. The press has a press frame 1 . In this embodiment, an upper main platen 2 is provided in the upper part of the press and a lower main platen 3 is provided in the lower part of the press. The main pressure plates 2 , 3 are heatable and are therefore designed as heating plates with integrated heating channels. The press frame 1 comprises a plurality of press frames 4 arranged in a row along the longitudinal direction of the press. Furthermore, the press has an upper inlet platen 5 arranged upstream of the upper main platen 2 on the inlet side and a lower inlet platen 6 arranged upstream of the lower main p...

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Abstract

The invention relates to a method for extruding a mat of pressed material during the manufacture of wood-based panels in a continuous press comprising a press frame (1), at least one upper platen ( 5) and at least one lower pressing plate (6), the upper pressing plate and / or the lower pressing plate are loaded by means of the pressing cylinders (7, 8) supported on the press frame to adjust the pressure gap arranged between the pressing plates, An inlet region is formed on the inlet side by the pressure plate, in which the mat of pressing material (M) entering the press gap is compressed during the compression phase, at least in the inlet region the upper and / or lower pressure plate is at least partially periodically pulsated Raised and lowered in such a way that the mat of pressed material entering the inlet gap undergoes a number of pulsating changes in sequence through multiple cyclical compressions and releases by means of cylinders connected to the upper and / or lower pressure plates in the inlet area. pressure phase and decompression phase.

Description

technical field [0001] The invention relates to a method for extruding a mat of pressed material during the manufacture of wood-based panels in a continuous press, [0002] The press comprises a press frame (e.g. having a plurality of press frames arranged one after the other), at least one (heatable / heated) upper platen and at least one (heatable / heated) lower platen, with support The press cylinder on the press frame loads the upper press plate and / or the lower press plate to adjust the pressure gap provided between the press plates, [0003] An inlet region is formed on the inlet side by the pressure plate, in which a mat of pressing material entering the press nip is compressed during the compression phase. Background technique [0004] In this case, preferably in the press upper part and in the press lower part there is respectively provided a continuously running press belt, such as a steel belt, which is supported on a press plate with an intermediate rolling element...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/24
CPCB27N3/24B30B5/06
Inventor H·费希纳L·塞巴斯蒂安J·H·许内克M·舍勒
Owner SIEMPELKAMP MASCH & ANLAGENBAU GMBH & CO KG
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