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1. 发明专利

JPH08197597A SCREW OF PLASTICIZING APPARATUS AND PLASTICIZING METHOD 失效
公开(公告)号：JPH08197597A
公开(公告)日：1996-08-06
申请号：JP1380295
申请日：1995-01-31
申请人： JAPAN STEEL WORKS LTD , POLYPLASTICS CO
发明人： YOKOYAMA KAZUHISA , KOIDE MASAMICHI , YOKOUCHI MITSURU , KUMAGAI YUKIHISA , MOCHIZUKI MITSUHIRO
IPC分类号： B29C45/54 , B29C45/48 , B29C45/60 , B29C48/395 , B29C48/67 , B29K105/08 , B29K105/12 , B29C47/38 , B29C47/64
摘要： PURPOSE: To plasticize a composite molding material containing a long fiber reinforcing material by a plasticizing apparatus so as to make it possible to mold the same into a molded product excellent in impact resistance and appearance. CONSTITUTION: The single full flight type screw 10 of an in-line screw type plasticizing apparatus is fitted in a cylinder 12 in a rotatable and axially movable manner. A feed zone 10a, a compression zone 10b and a metering zone 10c are successively formed to the screw 10 from a material supply side. Both of or either one of a kneading disc 14 and a plurality of squeeze rings is provided to the screw 10 at a predetermined position in the axial direction of the metering zone 10c.

2. 发明专利

JPH08197580A MATERIAL SUPPLY PORT OF INJECTION MOLDING MACHINE AND THERMOPLASTIC RESIN PLASTICIZING AND WEIGHING METHOD 失效
公开(公告)号：JPH08197580A
公开(公告)日：1996-08-06
申请号：JP825795
申请日：1995-01-23
申请人： JAPAN STEEL WORKS LTD , POLYPLASTICS CO
发明人： YOKOYAMA KAZUHISA , KOIDE MASAMICHI , YOKOUCHI MITSURU , KUMAGAI YUKIHISA , MOCHIZUKI MITSUHIRO
IPC分类号： B29C31/04 , B29C45/18 , B29C45/62 , B29C47/10
摘要： PURPOSE: To allow long pellets to bite in a screw in a state made hard to break from the material supply port of an injection molding machine. CONSTITUTION: A guide member 12 is fixed to a cylinder 10 in a detachable manner and a rotary screw 20 is provided in the cylinder 10 and the material supply port 14 of a hopper cylinder for sending a material to the screw 20 is formed to the guide member 12. The material supply port 14 is constituted of a hole part 16 opened upwardly and the almost partially tapered groove part 18 communicating with the lower end of the hole part 16 and formed between the upper part of the outer peripheral surface of the screw 20 and the guide member and becoming small in its diameter dimension toward the leading end of the screw.

3. 发明专利

JPH08187754A METHOD FOR PLASTICIZING AND WEIGHING PLASTIC MATERIAL 失效
公开(公告)号：JPH08187754A
公开(公告)日：1996-07-23
申请号：JP83695
申请日：1995-01-06
申请人： JAPAN STEEL WORKS LTD , POLYPLASTICS CO
发明人： YOKOYAMA KAZUHISA , KOIDE MASAMICHI , YOKOUCHI MITSURU , KUMAGAI YUKIHISA , MOCHIZUKI MITSUHIRO
IPC分类号： B29C45/50 , B29C45/76
摘要： PURPOSE: To mold an injection-molded product using a molding material containing glass long fibers excellent in impact resistance without generating wt. irregularity. CONSTITUTION: At the time of weighing in an injection molding machine constituted so that a molding material is weighed by rotating the injection screw 36 of an injection molding machine and the injection screw 36 having retreated by weighing operation is subsequently advanced to inject the weighed molding material from an injection nozzle 34, the operation rotating the injection screw 36 and allowing the same to retreat without allowing back pressure to act on the screw is performed during weighing. Further, the operation stopping the rotation of the injection screw 36 and allowing force of predetermined magnitude to act on the injection screw 36 in the advance direction thereof only for a predetermined time to compress the molding material during weighing so as not to leak the same from the injection nozzle 34 is performed.

4. 发明专利

JP2012057652A Flow passage forming structure and method of manufacturing this flow passage forming structure 审中-公开
标题翻译：流动通道形成结构及其形成结构的流动通道的制造方法
公开(公告)号：JP2012057652A
公开(公告)日：2012-03-22
申请号：JP2010198872
申请日：2010-09-06
申请人： Polyplastics Co , ポリプラスチックス株式会社
发明人： KUMAGAI YUKIHISA , UEDA TAKANORI , KONDO HIDEMI , OSUGA HARUNOBU , OKADA AKIRA , MOCHIZUKI AKIHIRO
IPC分类号： F16L47/02 , B23K20/12 , B29C65/06 , F16L25/00
摘要： PROBLEM TO BE SOLVED: To provide a flow passage forming structure without causing welding failure of a welding part even when the structure is enlarged.SOLUTION: This flow passage forming structure 1 is constituted of three or more of resin molds, and the projected area when viewed from the vertical direction to a welding surface of the welded resin mold, is restrained in 5-300 cm. For example, when welding the first resin mold 10, the second resin mold 20 and the third resin mold 30 for vibratingly welding the first resin mold 10 to one surface and vibratingly welding the second resin mold 20 to the other surface, the first resin mold 10 and the second resin mold 20 are adjusted so that the projected area becomes 5-300 cmwhen viewed from the vertical direction to the welding surface.
摘要翻译：要解决的问题：为了提供一种流道形成结构，即使当结构被扩大时也不会导致焊接部件的焊接故障。解决方案：该流道形成结构1由三个或更多个树脂模具构成，并且从垂直方向观察到焊接树脂模具的焊接表面的投影面积被限制在5-300cm 2 。例如，在将第一树脂模具10，第二树脂模具20以及将第一树脂模具10振动焊接到一个表面并将第二树脂模具20振动焊接到另一表面的第三树脂模具30时，第一树脂模具 10和第二树脂模具20被调整为使得当从垂直方向观察到焊接表面时，投影面积变成5-300cm 2 。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JPH08142213A GROOVED RESIN MOLDED PRODUCT AND MOLDING THEREOF 失效
公开(公告)号：JPH08142213A
公开(公告)日：1996-06-04
申请号：JP30992094
申请日：1994-11-17
申请人： POLYPLASTICS CO
发明人： KUMAGAI YUKIHISA , NISHIMURA MASAMICHI
IPC分类号： B29C45/37 , B29C45/26 , B29C70/06 , B29D15/00 , B29K105/14 , B29L15/00
摘要： PURPOSE: To enhance tensile and bending failure load while stabilizing quality by providing a groove to the cross section crossing the longitudinal direction of stock removed groove parallel to a resin flow direction at a right angle so that the ratio of a cross-sectional area after the groove is arranged to that before the groove is arranged to specific % or more and the ratio of the cross-sectional area of a core layer to the area of the latter to specific % or more. CONSTITUTION: Since the ratio of a cross-sectional area after a stock removed groove is arranged to that before the groove is arranged is set to 70% or more and the ratio of the cross-sectional area of a core layer to the cross-sectional area after the groove is arranged is set to 70% or more, in the surface layer (skin) of the molded product coming into contact with the product part cavity wall surface of a mold and the core wall surface of the mold constituting the stock removed groove, a reinforcing fiber receives shearing strongly at the time of molding and filling and is strongly oriented in a resin flow direction (molded product axial direction) and the tensile strength and bending strength in this orientation direction can be enhanced to a large extent. The measurement of the cross-sectional area and the area of the core layer is performed in respective parts from a cross section a-a to a cross section c-c and respective layers are measured from the fiber orientation of cross section observation.

6. 发明专利

JPH08142217A ROD-SHAPED RESIN MOLDED PRODUCT AND MOLDING THEREOF 失效
公开(公告)号：JPH08142217A
公开(公告)日：1996-06-04
申请号：JP28382694
申请日：1994-11-17
申请人： POLYPLASTICS CO
发明人： KUMAGAI YUKIHISA , NISHIMURA MASAMICHI
IPC分类号： B29C45/26 , B29C70/06 , B29D23/00 , B29K105/14 , B29L23/00
摘要： PURPOSE: To enhance tensile strength and bending strength in a longitudinal direction by providing a stock removed groove to a rod-shaped resin molded product substantially in parallel to the resin flow direction in the longitudinal direction of the molded product and specifying the ratio of a cross-sectional area after the groove is provided and also specifying the ratio of the cross-sectional area of a core layer. CONSTITUTION: A rod-shaped resin molded product is composed of a fiber-containing thermoplastic synthetic resin and a stock removed groove is provided to the whole or a part of the molded product in the longitudinal direction thereof substantially in parallel to a resin flow direction and the ratio of the cross-sectional area of the cross section crossing the longitudinal direction of the stock removed groove after the groove is provided to that before the groove is provided is set to 70% or more and the ratio of the cross-sectional area of a core layer to the cross-sectional area after the groove is provided is set to 70% or less. A fiber is strongly oriented in the rod-shaped resin molded product substantially in parallel to the resin flow direction. The core layer indicates the part of a cross section other than a skin layer and the skin layer indicates a part where the fiber of the surface layer of the molded product is oriented substantially in parallel to the resin flow direction.

7. 发明专利

JP2002361681A HOLDING METHOD OF HOLLOW MOLDED ARTICLE OF SYNTHETIC RESIN, MOLDED ARTICLE AND MOLD THEREFOR 失效
公开(公告)号：JP2002361681A
公开(公告)日：2002-12-18
申请号：JP2001174902
申请日：2001-06-08
申请人： POLYPLASTICS CO
发明人： KUMAGAI YUKIHISA , KATSUCHI HIROKAZU
IPC分类号： B29C45/33 , B29C45/00 , B29C45/13 , B29C45/14 , B29C45/16 , B29L22/00
摘要： PROBLEM TO BE SOLVED: To enhance the joining strength of a joint of a joining groove of a hollow molded article obtained by a die slide injection method or a die rotary injection method and a joining resin part, particularly the joining strength of a secondary molding weld part and a closed flow end. SOLUTION: Primary molded pieces having respectively butting portions, joining flange portions and joining groove portions provided inside these portions are molded, divided in two or more, in a mold for primary molding, and the respective divided portions of the pieces are butted in a mold for secondary molding, so as to obtain product precursors having butting faces, joining flanges and the joining grooves formed and having hollow parts respectively. A secondary resin is filled in the joining grooves of the product precursors to form the joining resin part and a molded article is obtained by joining the precursors. On the occasion, a gate for a resin well, a hole of the resin well and a discharge port of the resin well are provided in the joining flange portions at the position of weld of the secondary resin.

8. 发明专利

JP2002361679A MOLDING METHOD OF TUBULAR MOLDED ARTICLE, MOLDED ARTICLE AND MOLD 失效
公开(公告)号：JP2002361679A
公开(公告)日：2002-12-18
申请号：JP2001177671
申请日：2001-06-12
申请人： POLYPLASTICS CO
发明人： KUMAGAI YUKIHISA , KATSUCHI HIROKAZU
IPC分类号： B29C45/26 , B29C45/14 , B29K105/20 , B29L23/00
摘要： PROBLEM TO BE SOLVED: To enhance the joining strength of a joining portion of the semicircular end part of a tubular portion of a hollow molded article obtained by a die slide injection method, a die rotary injection method or the like. SOLUTION: A joining slant wall shape is provided in a joining wall surface portion of the semicircular end part of each of primary molded pieces. The joining slant wall shapes of both of the molded pieces are fitted on each other and a secondary resin is filled between these shapes to join the primary molded pieces.

9. 发明专利

JP2002067089A METHOD FOR FORMING HOLLOW MOLDING OF SYNTHETIC RESIN, MOLDING AND MOLD THEREFOR 失效
公开(公告)号：JP2002067089A
公开(公告)日：2002-03-05
申请号：JP2000253042
申请日：2000-08-23
申请人： POLYPLASTICS CO
发明人： KUMAGAI YUKIHISA
IPC分类号： B29C45/26 , B29C45/00 , B29C45/16
摘要： PROBLEM TO BE SOLVED: To provide a method for correcting a weld defect to be generated in the joined groove part of primary moldings during secondary injection, in a die slide injection process or a die rotary injection process for molding a hollow structural body by dividing a hollow body made up of a thermoplastic resin composition and filling the joined part, of the obtained primary moldings with a secondary resin and further, welding/joining the primary moldings. SOLUTION: The exhaust efficiency to the parting area side of a mold is increased by narrowing the section shape of a secondary flow channel in the vicinity of a weld position in the joined part by the secondary resin from the butting side to the parting area side.

10. 发明专利

JPH08142212A RESIN MOLDED PRODUCT HAVING END GROOVE 失效
公开(公告)号：JPH08142212A
公开(公告)日：1996-06-04
申请号：JP28545694
申请日：1994-11-18
申请人： POLYPLASTICS CO
发明人： KUMAGAI YUKIHISA , NISHIMURA MASAMICHI
IPC分类号： B29C45/37 , B29C33/42 , B29C45/00 , B29C70/06 , B29D7/00 , B29K105/14
摘要： PURPOSE: To control the orientation of a fiber and to reduce anisotropy to achieve the improvement of warpage deformation and the reduction of non-uniform orientation by providing a stock removed groove to the whole or a part of the end surface of a fiber-containing thermoplastic synthetic resin compsn. and strongly orienting the fiber in the direction substantially in parallel to the direction of the stock removed groove. CONSTITUTION: The flow terminal injected into the central part of the cavity of a main body 2 from a gate 2a by an injection means reaches a plate-shaped peripheral end expanding in an almost circular shape and forms an end groove to fill the same. When the end groove is arranged, the fiber orientation of the groove arranged part can be controlled and the fiber strongly oriented along the shape of an outer peripheral end in the direction right-angled to flow when the end groove is not arranged is changed in the direction parallel to the end groove and the non-uniformity of the anisotropy of fiber orientation and molding shrinkage is reduced and a resin can be allowed to approach a molding shrinkage behavior other than an end surface part and warpage deformation can be improved. The dimensional shape of the stock removed groove can be arbitrarily set and is changed corresponding to conditions such as the matrix kind of a resin material, a fiber, the shape and thickness of a molded product, a molding condition or a gate position.

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