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1. (WO2019063435) METHOD FOR PRODUCING PLASTICS HOLLOW BODIES
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Pub. No.: WO/2019/063435 International Application No.: PCT/EP2018/075636
Publication Date: 04.04.2019 International Filing Date: 21.09.2018
IPC:
B29C 49/78 (2006.01) ,B29C 49/04 (2006.01) ,B29C 51/46 (2006.01) ,B29C 51/10 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
49
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
42
Component parts, details or accessories; Auxiliary operations
78
Measuring, controlling or regulating
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
49
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
02
Combined blow-moulding and manufacture of the preform or the parison
04
Extrusion blow-moulding
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
51
Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
26
Component parts, details or accessories; Auxiliary operations
46
Measuring, controlling or regulating
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
51
Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
10
Forming by pressure difference, e.g. vacuum
Applicants:
KAUTEX TEXTRON GMBH & CO. KG [DE/DE]; Kautexstr. 52 53229 Bonn, DE
Inventors:
MAYER, Thomas; DE
HILD, Jochen; DE
THIMM, Verena; DE
Agent:
RICHLY & RITSCHEL PATENTANWÄLTE PARTG MBB; Sattlerweg 20 51429 Bergisch Gladbach, DE
Priority Data:
10 2017 217 468.429.09.2017DE
Title (EN) METHOD FOR PRODUCING PLASTICS HOLLOW BODIES
(FR) PROCÉDÉ DE FABRICATION DE CORPS EN MATIÈRE PLASTIQUE
(DE) VERFAHREN ZUR HERSTELLUNG VON KUNSTSTOFFHOHLKÖRPERN
Abstract:
(EN) The invention relates to a method for producing plastics hollow bodies by blow molding or deep drawing, using a deep drawing tool or a blow molding tool, comprising the extrusion of parisons from thermoplastic material, wherein the method comprises wall thickness control of the parisons, wherein a measurement of the wall thickness of the parisons within the tool is performed at the mold cavity at at least one reference point of a parison, the measured value obtained is compared, as an actual value, with a predefined setpoint value, and, in a manner dependent on the deviation between actual value and setpoint value, the wall thickness control initiates a change of the wall thickness of the parison in the context of closed-loop control during the extrusion or between extrusion cycles.
(FR) L’invention concerne un procédé pour réaliser des corps en matière plastique par moulage par soufflage ou emboutissage, par utilisation d’un outil d’emboutissage profond ou d’un outil de moulage par soufflage, le procédé comprenant l’extrusion de préformes à partir de matière thermoplastique, le procédé comprenant une commande d’épaisseur de paroi des préformes, une mesure de l’épaisseur de la paroi des préformes s’effectuant à l'intérieur de l’outil côté cavité de moulage en au moins un point de référence d’une préforme, la valeur de mesure obtenue étant comparée en tant que valeur réelle à une valeur théorique prédéfinie, et la commande d’épaisseur de paroi produisant en fonction de la différence entre la valeur réelle et la valeur théorique une modification de l’épaisseur de paroi de la préforme dans le sens d’un réglage au cours de l’extrusion ou entre les cycles d’extrusion.
(DE) Die Erfindung betrifft ein Verfahren zur Herstellung von Kunststoffhohlkörpern durch Blasformen oder Tiefziehen,unter Verwendung eines Tiefziehwerkzeuges oder eines Blasformwerkzeuges, umfassend die Extrusion von Vorformlingen aus thermoplastischem Kunststoff, wobei das Verfahren eine Wanddickensteuerung der Vorformlinge umfasst, wobei eine Messung der Wandstärke der Vorformlinge innerhalb des Werkzeugs formnestseitig an wenigstens einem Referenzpunkt eines Vorformlings erfolgt, der erhaltene Messwert als Istwert mit einem vorgegebenen Sollwert verglichen wird und die Wanddickensteuerung in Abhängigkeit der Abweichung zwischen Istwert und Sollwert eine Veränderung der Wandstärke des Vorformlings im Sinne einer Regelung während der Extrusion oder zwischen Extrusionszyklen veranlasst wird.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)