Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020115038 - CONTINUOUSLY OPERATING PRESS HAVING CLOSED-LOOP RAW DENSITY PROFILE CONTROL

Publication Number WO/2020/115038
Publication Date 11.06.2020
International Application No. PCT/EP2019/083483
International Filing Date 03.12.2019
IPC
B30B 5/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
5Presses characterised by the use of pressing means other than those mentioned in groups B30B1/ and B30B3/149
04wherein the pressing means is in the form of an endless band
06co-operating with another endless band
B30B 15/26 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
15Details of, or accessories for, presses; Auxiliary measures in connection with pressing
26Programme control arrangements
B27N 3/24 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
3Manufacture of substantially flat articles, e.g. boards, from particles or fibres
08Moulding or pressing
24characterised by using continuously acting presses having endless belts or chains moved within the compression zone
G01N 9/24 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
9Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
24by observing the transmission of wave or particle radiation through the material
G01N 23/06 2018.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/-G01N17/178
02by transmitting the radiation through the material
06and measuring the absorption
CPC
B27N 1/029
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
1Pretreatment of moulding material
02Mixing the material with binding agent
029Feeding; Proportioning; Controlling
B27N 3/146
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
3Manufacture of substantially flat articles, e.g. boards, from particles or fibres
08Moulding or pressing
10Moulding of mats
14Distributing or orienting the particles or fibres
146Controlling mat weight distribution
B27N 3/24
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
3Manufacture of substantially flat articles, e.g. boards, from particles or fibres
08Moulding or pressing
24characterised by using continuously acting presses having endless belts or chains moved within the compression zone
B30B 15/26
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
15Details of, or accessories for, presses; Auxiliary measures in connection with pressing
26Programme control arrangements
B30B 5/06
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
5Presses characterised by the use of pressing means other than those mentioned in the preceding groups
04wherein the pressing means is in the form of an endless band
06co-operating with another endless band
B30B 5/062
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
5Presses characterised by the use of pressing means other than those mentioned in the preceding groups
04wherein the pressing means is in the form of an endless band
06co-operating with another endless band
062urged by directly-acting fluid pressure
Applicants
  • DIEFFENBACHER GMBH MASCHINEN- UND ANLAGENBAU [DE]/[DE]
Inventors
  • HEMPEL, Tobias
Agents
  • HARTDEGEN, Helmut
Priority Data
10 2018 131 159.106.12.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) KONTINUIERLICH ARBEITENDE PRESSE MIT ROHDICHTEPROFILREGELUNG
(EN) CONTINUOUSLY OPERATING PRESS HAVING CLOSED-LOOP RAW DENSITY PROFILE CONTROL
(FR) PRESSE FONCTIONNANT EN CONTINU À RÉGULATION DE PROFIL DE DENSITÉ APPARENTE
Abstract
(DE)
Eine kontinuierlich arbeitende Presse (1) umfasst: zwei endlos umlaufende Stahlbänder (3), die einen Presspalt zur Verpressung des Pressgutes (8) ausbilden, eine zwischen den Stahlbändern (3) angeordnete Wälzlagerabstützung, Gestelle (2) zur Aufnahme der Presskräfte, die über hydraulische Arbeitszylinder (4) zur Verpressung des Pressguts (8) zu einer Werkstoffplatte (11) und zur Einstellung des Pressspaltes eingeleitet werden, und ein Steuersystem (20) zur Steuerung und/oder Regelung des Betriebs der Presse (1), wobei weiter eine Messeinrichtung (12) zur Erfassung des Rohdichteprofils der Werkstoffplatte (11) vorgesehen ist, das Steuersystem (20) eingerichtet ist, die Arbeitszylinder (4) gemäß einer Presskurve zu steuern oder zu regeln, und das Steuersystem (20) eine Analysevorrichtung (23) umfasst, welche die von der Messeinrichtung (12) erfassten Messwerte empfängt, das erfasste Rohdichteprofil, als ein Ist-Rohdichteprofil, hinsichtlich Abweichungen zu einem Soll-Rohdichteprofil analysiert, und basierend auf der Analyse an der Presskurve vorzunehmende Änderungen bestimmt, um das Ist-Rohdichteprofil dem Soll-Rohdichteprofil anzunähern oder anzugleichen. Das Steuersystem (20) kann die Presskurve automatisch gemäß den von der Analysevorrichtung (23) bestimmten Änderungen anpassen (1591).
(EN)
A continuously operating press (1) comprises: two continuously revolving steel belts (3), which form a press gap for pressing the product to be pressed (8), a rolling bearing support arranged between the steel belts (3), a frame (2) for taking up the pressing forces, which are introduced via hydraulic work cylinders (4) in order to press the product to be pressed (8) so as to form a material plate (11) and in order to adjust the press gap, and a control system (20) for providing open-loop and/or closed-loop control of the operation of the press (1). A measurement device (12) for detecting the raw density profile of the material plate (11) is also provided, and the control system (20) is designed to control the work cylinders (4) in accordance with a pressing curve by means of open-loop and/or closed-loop control, the control system (20) also comprising an analysis apparatus (23), which receives the measurement values detected by the measurement device (12), analyses the detected raw density profile as an actual raw density profile in respect of deviations from a target raw density profile, and on the basis of the analysis determines changes to be made on the pressing curve in order to approximate or match the actual raw density profile to the target raw density profile. The control system (20) can adjust (1591) the pressing curve automatically according to the changes determined by the analysis device (23).
(FR)
La présente invention concerne une presse fonctionnant en continu (1) comprenant : deux bandes en acier (3) circulant en continu, qui forment une fente de pressage de la matière à presser (8); un support de palier de roulement disposé entre les bandes en acier (3); des châssis (2) pour recevoir les forces de pression introduites par l'intermédiaire de cylindres de travail (4) hydrauliques pour presser la matière à presser (8) contre une plaque de matériau (11) et pour régler la fente de pressage; et un système de commande (20) pour commander et/ou réguler le fonctionnement de la presse (1); en outre, un dispositif de mesure (12) détectant le profil de densité apparente de la plaque de matériau (11) est prévu, le système de commande (20) est conçu pour commander ou réguler les cylindres de travail (4) en fonction d'une courbe de pression, et le système de commande (20) comporte un dispositif d'analyse (23), qui reçoit les valeurs mesurées enregistrées par le dispositif de mesure (12), qui analyse le profil de densité apparente enregistré, en tant que profil de densité apparente réel, concernant des écarts par rapport au profil de densité apparente de consigne, et qui détermine, sur la base de l'analyse de la courbe de pression, des modifications à apporter pour rapprocher ou aligner le profil de densité apparente réel au profil de densité apparente de consigne. Le système de commande (20) peut ajuster (1591) automatiquement la courbe de pression en fonction des modifications déterminées par le dispositif d'analyse (23).
Also published as
Latest bibliographic data on file with the International Bureau