ES2058660T3 - Procedimiento para influir sobre el movimiento del frente de fluencia en el prensado de masas a prensar y dispositivo para llevar a cabo el procedimiento. - Google Patents

Procedimiento para influir sobre el movimiento del frente de fluencia en el prensado de masas a prensar y dispositivo para llevar a cabo el procedimiento.

Info

Publication number
ES2058660T3
ES2058660T3 ES90107612T ES90107612T ES2058660T3 ES 2058660 T3 ES2058660 T3 ES 2058660T3 ES 90107612 T ES90107612 T ES 90107612T ES 90107612 T ES90107612 T ES 90107612T ES 2058660 T3 ES2058660 T3 ES 2058660T3
Authority
ES
Spain
Prior art keywords
influence
flow
procedure
pressure
force
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
ES90107612T
Other languages
English (en)
Inventor
Richard Dipl-Ing Brussel
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.)
Umformtechnik Erfurt GmbH
Original Assignee
Umformtechnik Erfurt 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 Umformtechnik Erfurt GmbH filed Critical Umformtechnik Erfurt GmbH
Application granted granted Critical
Publication of ES2058660T3 publication Critical patent/ES2058660T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
    • B30B15/245—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam using auxiliary cylinder and piston means as actuating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/26—Program-control arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

FLUJOS INVERTIDOS, QUE PRODUCEN ALINEACIONES DE FIBRAS NO DESEADAS Y PRESIONES DE DEFORMACION DESIGUALES, SE PRESENTAN SI EL FRENTE DE FLUJO DE LA MASA PRENSADA LLEGA EN DIFERENTES MOMENTOS A LOS BORDES DE INMERSION DE LAS HERRAMIENTAS DE PRENSADO, BAJO LA INFLUENCIA DE CALOR Y DE PRESION. CON EL FIN DE INFLUIR SOBRE ESTE TIPO DE MOVIMIENTOS DE FRENTES DE FLUJO, RESPECTO AL MANDO CONCRETO O A LA DISMINUCION DE PROCESOS DE FLUJO INVERTIDO, SE PROPONE AVERIGUAR, DE LA MEDIDA DE LA FUERZA DE PRESION Y DE UN PROBABLE VALOR DE DIFERENCIA ENTRE LAS FUERZAS EN CONTRA, LA POSICION DEL CENTRO DE LA FUERZA EJERCIDA SOBRE LA MASA PRENSADA, EN LAS LINEAS DE CONEXION (D 1 O D 2) ENTRE LAS UNIDADES DE CILINDROS EN CONTRA, REFERENTE A UN PUNTO CERO (N) EN FORMA DE UN VALOR DE DISTANCIA POSITIVO/NEGATIVO. A RAZON DE ESTOS VALORES DE DISTANCIA HASTA EL FINAL DE LOS MOVIMIENTOS DE FLUJO, SE INFLUYE SOBRE LA POSICION DE LAS UNIDADES DE CILINDROS DE CONTRAFUERZA DIAGONALES, DE LA FORMA QUE LA SECCION DEL HUECODE MOLDE PRESENTA UNA AMPLIACION, MEDIANTE POSICION DIAGONAL, DE LA PARTE MOVIL DE LA HERRAMIENTA. ESTA AMPLIACION APOYA EL MOVIMIENTO DEL FRENTE DE FLUJO EN EL LADO DEL PUNTO CERO, OPUESTO AL CENTRO DE FUERZA DE VALOR.
ES90107612T 1989-05-13 1990-04-21 Procedimiento para influir sobre el movimiento del frente de fluencia en el prensado de masas a prensar y dispositivo para llevar a cabo el procedimiento. Expired - Lifetime ES2058660T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3915735A DE3915735A1 (de) 1989-05-13 1989-05-13 Verfahren zur beeinflussung der fliessfrontbewegung beim auspressen von pressmassen und einrichtung zur durchfuehrung des verfahrens

Publications (1)

Publication Number Publication Date
ES2058660T3 true ES2058660T3 (es) 1994-11-01

Family

ID=6380647

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90107612T Expired - Lifetime ES2058660T3 (es) 1989-05-13 1990-04-21 Procedimiento para influir sobre el movimiento del frente de fluencia en el prensado de masas a prensar y dispositivo para llevar a cabo el procedimiento.

Country Status (3)

Country Link
EP (1) EP0401501B1 (es)
DE (2) DE3915735A1 (es)
ES (1) ES2058660T3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3242793A1 (en) * 2015-01-08 2017-11-15 Persico S.p.A. Press and method for molding an ingot made of thermoplastic or thermosetting material
DE102015114786A1 (de) * 2015-09-03 2017-03-09 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Herstellung von faserverstärkten Kunststoffteilen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076780A (en) * 1977-01-27 1978-02-28 General Motors Corporation Programmable velocity and force control method for compression molding
US4269580A (en) * 1980-06-11 1981-05-26 General Motors Corporation Compression molding press with hydraulic controls
DE3401203C1 (de) * 1984-01-14 1985-05-30 Hoesch Ag, 4600 Dortmund Hydraulische Presse zum Verpressen von Kunststoff-Halbzeug
US4784058A (en) * 1986-08-13 1988-11-15 Kabushiki Kaisha Kobe Seiko Sho Press control for maintaining a level position and a uniform pressure on a workpiece

Also Published As

Publication number Publication date
DE59006878D1 (de) 1994-09-29
EP0401501A2 (de) 1990-12-12
EP0401501A3 (de) 1992-01-08
DE3915735A1 (de) 1990-11-15
EP0401501B1 (de) 1994-08-24

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