Source: http://www.freepatentsonline.com/9561610.html
Timestamp: 2018-04-20 01:21:07
Document Index: 667925780

Matched Legal Cases: ['arth 425', 'art.\n4', 'art.\n5', 'art.\n6', 'art 42', 'art 42', 'art 44', 'art 42']

Injection molding method and apparatus therefor - HONDA MOTOR CO., LTD.
United States Patent 9561610
Hanaoka, Atsushi (Tochigi, JP)
Kawano, Kazuhiro (Tochigi, JP)
Nakai, Suguru (Tochigi, JP)
Kakizaki, Yoko (Tochigi, JP)
14/127362
B29C45/27; B29C45/26; B29C45/28; B29C45/30
425/549, 425/550, 425/542, 425/570, 425/564, 425/215, 425/206, 264/328.14, 264/69, 264/327
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20130285274 METHODS AND APPARATUS FOR PROCESSING POLYMERS 2013-10-31 Woodworth 264/53
7614872 Melt redistribution element for an injection molding apparatus 2009-11-10 Olaru 264/328.12
20080290542 Hot Runner Having Temperature Sensor for Controlling Nozzle Heater 2008-11-27 Olaru
7393198 Molding-system viscous-drag sensor 2008-07-01 Niewels 425/145
20080088047 Apparatus and method for a hot runner injection molding system 2008-04-17 Trudeau 264/40.1
20080065356 Anomaly monitoring method of an injection molding machine 2008-03-13 Kato 702/183
20080023862 Molding-system viscous-drag sensor 2008-01-31 Niewels 264/40.1
20070298141 WASTE-LESS INJECTION MOLDING FAN GATE 2007-12-27 Barth 425/557
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20070003654 Mixing and pulverizing device, melting method for mixing, and method of molding cellulose material impregnated with binder 2007-01-04 Morimoto 425/208
20060222727 Screw extruder 2006-10-05 Iwata 425/208
20060113695 Method for producing composite materials such as thermoplastic resins with mineral and/or vegetable fillers 2006-06-01 De Maria 264/102
20060103045 Wet use chopped strand glass as reinforcement in extruded products 2006-05-18 O'Brien-Bernini 264/45.9
6544028 Injection molding machine having a mixer insert 2003-04-08 Wright 264/328.12
20020105113 Mixer method and apparatus for injection molding machines 2002-08-08 Wright 264/349
20010011067 Process and apparatus for the production of a detergent composition 2001-08-02 Allan 510/152
6113828 Method of injection molding severing a looped gate passage 2000-09-05 Feick 264/161
5334008 Injection molding nozzle insert with valve member locating blades 1994-08-02 Gellert 264/328.12
5034177 Method for molding saturated crystalline polyesters 1991-07-23 Niimi 264/328.14
5007821 Injection molding manifold having a pair of cooling bores on opposite sides of the melt passage 1991-04-16 Schmidt 264/328.14
4965028 Method of injection molding thermoplastic through multiple gates 1990-10-23 Maus 264/297.2
4908169 Method for plasticating using reciprocating-screw having a melt channel and solids channels 1990-03-13 Galic 264/328.14
4675141 Method of controlling pressurized gas, before and after injecting a molten material, in a mold cavity 1987-06-23 Kumazaki 264/328.14
4634366 Injection molding machine 1987-01-06 Brun 264/328.14
4397806 Method and apparatus for mold injection 1983-08-09 Hettinga 264/328.14
3140332 Injection molding method and apparatus 1964-07-07 Brown 264/328.14
CN101332657A 2008-12-31 Hot runner having temperature sensor for controlling nozzle heater and related method
JP05124076 May, 1993
JP09039055 February, 1997
JP11105079 April, 1999
JP200211763 January, 2002
JP2003154562A 2003-05-27 INJECTION-MOLDING DEVICE
JP2004209955A 2004-07-29 VALVE GATE OF HOT RUNNER MOLD FOR INJECTION MOLDING
JP2006346941A 2006-12-28 INJECTION MOLDING METHOD AND INJECTION MOLD
JP2007090666A 2007-04-12 METHOD FOR OPERATING INJECTION MOLDING MACHINE IN INJECTION MOLDING EQUIPMENT
JP2008207482A 2008-09-11 INJECTION MOLDING MACHINE
JP2008302655A 2008-12-18 FLUID JET DEVICE
JPH0939055A 1997-02-10
JPH05124076A 1993-05-21
JP2002011763A 2002-01-15
JPH11105079A 1999-04-20
Chinese Office Action dated Apr. 3, 2015, 11 pages.
Japanese Office Action dated Sep. 8, 2015, 3 pages.
Japanese Office Action issued Sep. 9, 2014, 3 pages.
1. An injection molding apparatus for obtaining a molded product by filling molten resin in a product part formed in a mold, comprising: an injector which obtains molten resin by melting resin, and injects the molten resin, a hot runner which is a flowing path of the molten resin, a temperature rising part which is provided in a part of the hot runner, and increases a temperature of the molten resin to be higher than a melting temperature in the injector, a path opening/closing part which opens or closes an upstream side flowing path or a downstream side flowing path of the temperature rising part, and a stirring part provided with a stirring blade for stirring the molten resin flowing in the temperature rising part, wherein the path opening/closing part comprises a valve member for opening or closing the upstream side flowing path or the downstream side flowing path, and a displacement mechanism for displacing the valve member, wherein an insertion hole is formed in the stirring blade, and the valve member is passed through the insertion hole, and wherein a tubular member is inserted into the insertion hole, and the valve member is passed through the insertion hole through a through-hole of the tubular member.
2. The injection molding apparatus according to claim 1, wherein the stirring part includes a static mixer.
3. The injection molding apparatus according to claim 1, further comprising a cobwebbing prevention part provided on a downstream side of the temperature rising part.
4. The injection molding apparatus according to claim 1, further comprising a slag well provided on a downstream side of the temperature rising part.
5. The injection molding apparatus according to claim 1, wherein the valve member is extended in a direction parallel to a longitudinal direction of the stirring part.
6. The injection molding apparatus according to claim 1, wherein a center axis of the stirring part is provided at a position offset with respect to a central axis of the upstream side flowing path or the downstream side flowing path.
7. The injection molding apparatus according to claim 1, wherein the displacement mechanism is provided in a fixed mold, and the valve member opens or closes the downstream side flowing path.
8. The injection molding apparatus according to claim 1, wherein two or more the temperature rising part and path opening/closing part are provided.
9. The injection molding apparatus according to claim 8, wherein the molten resin is individually supplied from the two or more of the temperature rising parts to the cavity by individually operating the path opening/closing parts.
The molten resin passed through the temperature rising part 42 passes through the spool 50, and is led to the product part via the runner 16 and a not-shown gate. As described above, the temperature of the molten resin led to the runner 16 is increased by the temperature rising part 42, and the viscosity is sufficiently lowered. Further, as the molten resin temperature is increased to be relatively high by the temperature rising, even if the heat of the molten resin is removed by the movable mold 14, the temperature is hard to decrease. Therefore, the molten resin flowing distance is increased, and even if there is a portion forming a thin wall portion in the product part, the molten resin easily passes through the portion, and reaches an end portion of the product part. In other words, the molten resin is densely filled in the entire cavity.
Further, as shown in FIG. 22, the insertion hole may be formed so as to avoid a junction of the stirring blades 70 (the center in the radial direction). In this case, the communication path 40 of the hot nozzle 38 may be inclined like a crank or a reducer, so that the axial center (diameter center) of the outlet of the communication path 40 aligns with axial center (diameter center) of the static mixer 44, and the axial center of the spool 50 may be provided at a position offset from the axial center of the static mixer 44. Otherwise, as shown in FIG. 23, the communication path 40 of the hot nozzle 38 may be provided at a position offset from the axial center of the hot nozzle 38.
In the above apparatus, the path opening/closing part may be configured as a so-called a valve gate. Namely, in this case, the path opening/closing part comprises a valve member 60 for opening or closing the upstream side flowing path 40 or the downstream side flowing path 50, and a displacement mechanism 54, 90, or 100 for displacing the valve member.
In the above apparatus, a stirring part 44 may be provided for stirring the molten resin flowing in the temperature rising part 42. By the stirring, it is possible to avoid occurrence of temperature variations in molten resin. Therefore, a temperature, consequently a viscosity of molten resin becomes substantially uniform. Thereby, formation of a high viscosity portion in molten resin can be avoided, and the molten resin flowing distance can be easily increased.
In the above apparatus, the insertion hole may be formed in a portion other than a junction between the stirring blades 70.
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