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1. (WO2018128650) PROCESS AND APPARATUS TO INJECTION MOLD CONTINUOUS LENGTHS OF HOLLOW PLASTIC ARTICLES
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Pub. No.: WO/2018/128650 International Application No.: PCT/US2017/050388
Publication Date: 12.07.2018 International Filing Date: 07.09.2017
IPC:
B29C 45/00 (2006.01) ,B21D 39/00 (2006.01) ,B23P 11/02 (2006.01) ,B29C 45/26 (2006.01) ,B29C 45/04 (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
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
D
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING
39
Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
P
OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
11
Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for
02
by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
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
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17
Component parts, details or accessories; Auxiliary operations
26
Moulds
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
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
03
Injection moulding apparatus
04
using movable moulds
Applicants:
SUTTON, Gerald [US/US]; US
Inventors:
SUTTON, Gerald; US
Agent:
MARTIN, C. Richard; Martin IP Law Grooup, PC 318 Main Street, Suite 503 Evansville, IN 47708, US
Priority Data:
15/398,24804.01.2017US
Title (EN) PROCESS AND APPARATUS TO INJECTION MOLD CONTINUOUS LENGTHS OF HOLLOW PLASTIC ARTICLES
(FR) PROCÉDÉ ET APPAREIL POUR LE MOULAGE PAR INJECTION DES LONGUEURS CONTINUES D'ARTICLES CREUX EN PLASTIQUE
Abstract:
(EN) A method and apparatus for manufacturing continuous ribbed pipes of thermoplastic resin material comprises the following successive steps. A length of pipe is injection molded in a mold cavity between a collapsible male mold element and female mold elements, the latter being shaped to provide integral ribbing on the outer surface of the pipe. After sufficient setting, the female mold elements are disengaged and the male mold element is collapsed and disengaged. A plunger then pushes the pipe length axially along the male mold element. The female mold elements and the collapsed male mold element are then re-engaged such that the one end of the formed pipe forms a closure for the mold cavity at the downstream end. Further material is again injected into the cavity which fuses with the one pipe end and which forms a further pipe length. These steps are repeated until the desired length of pipe is formed.
(FR) L'invention concerne un procédé et un appareil de fabrication de tuyaux nervurés continus en matière à base de résine thermoplastique comprenant les étapes successives suivantes. Une longueur de tuyau est moulée par injection dans une cavité de moule entre un élément de moule mâle pouvant être replié et des éléments de moule femelle, ces derniers étant façonnés pour obtenir un nervurage intégré sur la surface externe du tuyau. Après un durcissement suffisant, les éléments de moule femelle sont séparés et l'élément de moule mâle est replié et séparé. Un piston pousse ensuite la longueur de tuyau axialement le long de l'élément de moule mâle. Les éléments de moule femelle et l'élément de moule mâle replié sont ensuite resolidarisés de telle sorte qu'une extrémité du tuyau formé forme une fermeture pour la cavité de moule au niveau de l'extrémité en aval. De la matière supplémentaire est de nouveau injectée dans la cavité, qui fusionne avec ladite une extrémité de tuyau et qui forme une nouvelle longueur de tuyau. Ces étapes sont répétées jusqu'à ce que la longueur souhaitée de tuyau soit formée.
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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: English (EN)
Filing Language: English (EN)