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1. CN1551821 - Injection molding apparatus and injection molding method

Office
Chine
Numéro de la demande 03800956.0
Date de la demande 06.06.2003
Numéro de publication 1551821
Date de publication 01.12.2004
Numéro de délivrance 1319721
Date de délivrance 06.06.2007
Type de publication C
CIB
B29C 45/20
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
29TRAVAIL DES MATIÈRES PLASTIQUES; TRAVAIL DES SUBSTANCES À L'ÉTAT PLASTIQUE EN GÉNÉRAL
CFAÇONNAGE OU ASSEMBLAGE DES MATIÈRES PLASTIQUES; FAÇONNAGE DES MATIÈRES À L'ÉTAT PLASTIQUE NON PRÉVU AILLEURS; POST-TRAITEMENT DES PRODUITS FAÇONNÉS, p.ex. RÉPARATION
45Moulage par injection, c. à d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule fermé; Appareils à cet effet
17Eléments constitutifs, détails ou accessoires; Opérations auxiliaires
20Buses d'injection
CPC
B29C 45/20
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
20Injection nozzles
B29C 45/2602
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
26Moulds
2602Mould construction elements
B29C 45/2756
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
26Moulds
27Sprue channels ; Runner channels or runner nozzles
2756Cold runner channels
B29K 2101/12
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
2101Use of unspecified macromolecular compounds as moulding material
12Thermoplastic materials
B29L 2017/005
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
2017Carriers for sound or information
001Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
003Records or discs
005CD''s, DVD''s
Déposants Sony Disc Technology Inc.
新力光碟科技股份有限公司
Inventeurs Kishi Shinsuke
岸信介
Matsuura Osamu
松浦修
Mandataires zhang tianan yang songling
中国专利代理(香港)有限公司
中国专利代理(香港)有限公司
Données relatives à la priorité 2002172619 13.06.2002 JP
Titre
(EN) Injection molding apparatus and injection molding method
(ZH) 注射模塑成形装置及注射模塑成形方法
Abrégé
(EN) A space (12) or the like is formed in the front end of a nozzle (1), thereby reducing heat transmission through the nozzle (1). Alternatively, the central portion of either the convex spherical surface of the front end of the nozzle (1) or the concave spherical surface of a spool bushing (2) is projected and has the same radius of curvature as the other spherical surface, whereby the nozzle (1) and the spool bushing (2) are put in surface contact with each other for more absorption of heat from the front end of the nozzle (1) to the spool bushing (2). These measures make it possible to facilitate the falling of temperature of the front end of the nozzle (1) and to improve detachment of the spool from the front end of the bar-like projection on the spool at the time of taking out the spool after the cooling of resin material injected into a molding cavity (11).
(ZH)

通过在喷嘴(1)的前端部设置空间(12)等使喷嘴(1)的导热性降低,或通过使喷嘴(1)前端部的凸球面和浇道套(2)的凹球面的任意一方的中央部突出并形成与另一方球面的曲率半径相同的球面,将喷嘴(1)与浇道套(2)呈面接触,增加由喷嘴(1)前端部传向浇道套(2)的热量的吸收,由此,易使喷嘴(1)前端部的温度降低,在向成形用空腔(11)内注射的树脂材料冷却后浇口取出时,实现浇口的棒状突出部前端的良好切离。


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