ES2181504T3 - Procedimiento de conformacion para fabricar piezas de plastico y dispositivo para la puesta en practica del procedimiento. - Google Patents

Procedimiento de conformacion para fabricar piezas de plastico y dispositivo para la puesta en practica del procedimiento.

Info

Publication number
ES2181504T3
ES2181504T3 ES99970957T ES99970957T ES2181504T3 ES 2181504 T3 ES2181504 T3 ES 2181504T3 ES 99970957 T ES99970957 T ES 99970957T ES 99970957 T ES99970957 T ES 99970957T ES 2181504 T3 ES2181504 T3 ES 2181504T3
Authority
ES
Spain
Prior art keywords
molding material
mold cavity
procedure
piston
repository space
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
ES99970957T
Other languages
English (en)
Inventor
Lothar Stemke
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE1998149452 external-priority patent/DE19849452C2/de
Priority claimed from DE1999126319 external-priority patent/DE19926319B4/de
Priority claimed from DE1999149427 external-priority patent/DE19949427C1/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of ES2181504T3 publication Critical patent/ES2181504T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
    • 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
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • 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
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3444—Feeding the material to the mould or the compression means using pressurising feeding means located in the mould, e.g. plungers or pistons
    • 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
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
    • 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
    • B29C2043/5875—Measuring, controlling or regulating the material feed to the moulds or mould parts, e.g. controlling feed flow, velocity, weight, doses
    • B29C2043/5883—Measuring, controlling or regulating the material feed to the moulds or mould parts, e.g. controlling feed flow, velocity, weight, doses ensuring cavity filling, e.g. providing overflow means
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
    • B29C2045/025—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity with the transfer plunger surface forming a part of the mould cavity wall at the end of the plunger transfer movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Procedimiento de conformación para fabricar piezas de plástico, en el que se introduce la masa de moldeo fundida, antes de su conformación en un recinto de moldeo (KV), en un recinto de depósito (A) que casi coincide respecto de su volumen con el volumen del recinto de moldeo (KV) y que está realizado en forma de un cilindro y unido comunicándose con el recinto de moldeo (KV) de tal manera que el recinto de depósito (A) desemboque sin transición en el recinto de moldeo (KV), y se transporta la masa de moldeo del recinto de depósito (A) al recinto de moldeo (KV) por medio de un pistón (S) desplazable axialmente en el recinto de depósito (A), caracterizado porque ¿ al comienzo del proceso de inyección el pistón (S) se encuentra en un primer punto muerto en el que la cabeza del pistón está alineada con el borde del recinto de depósito (A) y con la pared del recinto de moldeo de tal manera que una pequeña cantidad de masa fundida de moldeo llega directamente al recinto de moldeo (KV), ¿ seguidamente, el pistón (S) se desliza hacia dentro del cilindro y con ello el recinto de depósito (A), que se hace continuamente de mayor tamaño, se llena casi sin presión con masa fundida de moldeo hasta que el pistón (S) alcance su segunda posición de punto muerto y se concluya la alimentación de masa fundida de moldeo, ¿ a continuación, el pistón (S) se traslada casi hasta la primera posición de punto muerto y se llena así completamente el recinto de moldeo (KV) con masa de moldeo, y ¿ durante el tiempo de retención se lleva el pistón (S) a la primera posición de punto muerto.
ES99970957T 1998-10-28 1999-10-27 Procedimiento de conformacion para fabricar piezas de plastico y dispositivo para la puesta en practica del procedimiento. Expired - Lifetime ES2181504T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1998149452 DE19849452C2 (de) 1998-10-28 1998-10-28 Dosiervorrichtung
DE1999126319 DE19926319B4 (de) 1998-10-28 1999-06-09 Dosiervorrichtung
DE1999149427 DE19949427C1 (de) 1999-10-13 1999-10-13 Formgebungsverfahren zum Herstellen von Kunststoffteilen

Publications (1)

Publication Number Publication Date
ES2181504T3 true ES2181504T3 (es) 2003-02-16

Family

ID=27218770

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99970957T Expired - Lifetime ES2181504T3 (es) 1998-10-28 1999-10-27 Procedimiento de conformacion para fabricar piezas de plastico y dispositivo para la puesta en practica del procedimiento.

Country Status (16)

Country Link
US (1) US6699422B1 (es)
EP (1) EP1124675B1 (es)
JP (1) JP2003516242A (es)
CN (1) CN1106923C (es)
AT (1) ATE220978T1 (es)
AU (1) AU1154800A (es)
CA (1) CA2348570A1 (es)
CZ (1) CZ20011516A3 (es)
DE (1) DE59902145D1 (es)
EA (1) EA002876B1 (es)
ES (1) ES2181504T3 (es)
MX (1) MXJL01000008A (es)
PL (1) PL191255B1 (es)
PT (1) PT1124675E (es)
SK (1) SK5682001A3 (es)
WO (1) WO2000024560A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020109267A1 (en) * 1997-10-02 2002-08-15 Harald Herbst Differentiated press-molding process
DE19948278A1 (de) 1999-10-06 2001-04-19 Battenfeld Gmbh Verfahren und Vorrichtung zum Mehrkomponenten-Spritzgießen von Kunststoff-Formteilen
DE19948279B4 (de) * 1999-10-06 2006-03-30 Battenfeld Gmbh Verfahren und Vorrichtung zum Spritzgießen von Kunststoff-Formteilen
KR100767030B1 (ko) * 2000-02-14 2007-10-15 로몰드 코포레이션 엔브이 몰딩가능한 물질의 몰딩
DE10009343B4 (de) * 2000-02-22 2008-11-13 Volkswagen Ag Verfahren und Vorrichtung zum Herstellen eines Kunststoff-Formteiles
US6884061B2 (en) * 2002-09-18 2005-04-26 Mold-Masters Limited Metering device for a nozzle of an injection molding apparatus
EP1762359B1 (en) * 2002-12-03 2009-07-15 Mold-Masters (2007) Limited Hot runner co-injection nozzle
US7175420B2 (en) 2003-02-13 2007-02-13 Mold-Masters Limited Valve gated injection molding system with independent flow control
US20040166189A1 (en) * 2003-02-25 2004-08-26 Mold-Masters Limited Injection molding system with flow control
US7094297B2 (en) 2003-07-25 2006-08-22 Yanco I/P, Inc. Methods for making screen assemblies
TW200823513A (en) * 2006-11-24 2008-06-01 Ind Tech Res Inst Cholesteric liquid crystal display devices and driving methods thereof
WO2011010179A1 (en) * 2009-07-22 2011-01-27 Momexx B.V. Method and equipment for extrusion molding of plastics
CN101957251B (zh) * 2010-06-19 2013-05-08 凡嘉科技（无锡）有限公司 一种圆形产品的动平衡调节结构
CN103231486B (zh) * 2013-03-27 2015-06-03 株洲宏大高分子材料有限公司 传递模塑成型方法及设备
CN105382991B (zh) * 2015-10-23 2017-07-25 江苏科技大学 一种pp/ldpe超延展制品的水发泡注射成型方法
EP3950253B1 (en) * 2020-08-04 2023-06-21 Tetra Laval Holdings & Finance S.A. Molding apparatus for molding opening devices and packaging machine having a molding apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505540A (en) * 1945-02-15 1950-04-25 Goldhard Franz Karl Injection molding apparatus
US3590114A (en) 1967-10-30 1971-06-29 Owens Illinois Inc Displacement molding of plastic articles
US3647337A (en) 1969-06-17 1972-03-07 Gen Motors Corp Precision molding apparatus
NL7512948A (nl) * 1975-11-05 1977-05-09 Herstal Sa Inrichting voor het vervaardigen van holle kunst- stoflichamen, en met deze inrichting vervaardigde holle lichamen.
US4560342A (en) * 1984-02-27 1985-12-24 Takeshi Ishida Injection molding instrument for forming resin concave lenses
DE4113148C2 (de) * 1991-04-23 1995-06-14 Krauss Maffei Ag Vorrichtung zum Herstellen laminierter Formteile aus thermoplastischem Kunststoff-Material
BE1006750A5 (nl) * 1993-02-15 1994-11-29 Atlas Copco Airpower Nv Werkwijze voor het vormen van een voorwerp van thermohardende kunststof in een matrijs en aldus vervaardigd voorwerp.
DE19631209A1 (de) 1996-04-12 1997-10-16 Richard Herbst Verfahren und Vorrichtung zum Spritzgießen von Kunststoffteilen
CN1236340A (zh) 1996-09-05 1999-11-24 罗莫德国际有限公司 模塑产品的制造装置和方法
US6103150A (en) * 1998-03-11 2000-08-15 The Budd Company Molding overflow feedback method

Also Published As

Publication number Publication date
EP1124675B1 (de) 2002-07-24
JP2003516242A (ja) 2003-05-13
CN1106923C (zh) 2003-04-30
CZ20011516A3 (cs) 2001-09-12
WO2000024560A1 (de) 2000-05-04
EP1124675A1 (de) 2001-08-22
PL191255B1 (pl) 2006-04-28
EA200100471A1 (ru) 2001-10-22
SK5682001A3 (en) 2001-11-06
US6699422B1 (en) 2004-03-02
PL347544A1 (en) 2002-04-08
AU1154800A (en) 2000-05-15
EA002876B1 (ru) 2002-10-31
CA2348570A1 (en) 2000-05-04
ATE220978T1 (de) 2002-08-15
MXJL01000008A (es) 2002-06-11
DE59902145D1 (de) 2002-08-29
PT1124675E (pt) 2002-12-31
CN1324292A (zh) 2001-11-28

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