FORFARANDE OCH ANORDNING FOR FRAMSTELLNING AV FORMDELAR AV PLANA FIBERFLOCKMATTOR, FORETREDESVIS AV MED BINDEMEDEL FORSEDDA CELLULOSA- ELLER LIGNOCELLULOSAFIBRER

• Main Author: G H KISS
• Format: Patent
• Language: Swedish
• Published: 20.10.1986
• Edition: 3
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

The present invention relates to a process for producing molded parts from flat tangled fiber fleece mats, preferably formed from binder-containing cellulose or lignocellulose fibers, in which the fiber mat is compressed by press tools and is subsequently optionally provided with a decorative surface layer. The compression takes place in two stages of premolding and final molding in successive strokes in a single press without intermediate cooling and the decorative surface layer is supplied to the press after final molding. Between the press tools which are in the open position for the first process stage is introduced a premolding tool used for premolding the fiber mat, for the decorative process stage following the final molding in the open press tool an auxiliary tool is introduced which, with regards to the compression molding pressure, temperature, shaping and/or surface structure, can be matched to the characteristics of the decorative surface. The apparatus for performing the process is an auxiliary and premolding tool which can be inserted and removed by guides and permits a vertical adjustment.