INJECTION CONTROL METHOD FOR INJECTION MOLDING MACHINE
PROBLEM TO BE SOLVED: To effectively suppress sudden pressure fluctuation and to stabilize suppression to attain further improvement of quality and uniformity of molded products. SOLUTION: Speed target values V1 etc. and a predetermined limit pressure Ps that pressure P can reach in a filling proces...
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| creator | MARUYAMA TOSHIHIKO OKADA HARUO |
| description | PROBLEM TO BE SOLVED: To effectively suppress sudden pressure fluctuation and to stabilize suppression to attain further improvement of quality and uniformity of molded products. SOLUTION: Speed target values V1 etc. and a predetermined limit pressure Ps that pressure P can reach in a filling process Zi are set beforehand to perform trial molding, and speed data Dv concerning the injection speed V of trial molding in which a non-defective product can be obtained is detected. Predetermined speed change patterns Vp obtained from the speed data Dv after the pressure P has reached the limit pressure Ps are registered as speed control patterns Vs etc., and feedback control of the injection speed V is performed to obtain the speed target values V1 etc. in mass molding. When the pressure P reaches a limit detection pressure Pss corresponding to the limit pressure Ps, speed control of the injection speed V based on the speed control patterns Vs etc. is performed until reaching the following switching points tc etc. COPYRIGHT: (C)2009,JPO&INPIT |
| format | Patent |
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SOLUTION: Speed target values V1 etc. and a predetermined limit pressure Ps that pressure P can reach in a filling process Zi are set beforehand to perform trial molding, and speed data Dv concerning the injection speed V of trial molding in which a non-defective product can be obtained is detected. Predetermined speed change patterns Vp obtained from the speed data Dv after the pressure P has reached the limit pressure Ps are registered as speed control patterns Vs etc., and feedback control of the injection speed V is performed to obtain the speed target values V1 etc. in mass molding. 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SOLUTION: Speed target values V1 etc. and a predetermined limit pressure Ps that pressure P can reach in a filling process Zi are set beforehand to perform trial molding, and speed data Dv concerning the injection speed V of trial molding in which a non-defective product can be obtained is detected. Predetermined speed change patterns Vp obtained from the speed data Dv after the pressure P has reached the limit pressure Ps are registered as speed control patterns Vs etc., and feedback control of the injection speed V is performed to obtain the speed target values V1 etc. in mass molding. When the pressure P reaches a limit detection pressure Pss corresponding to the limit pressure Ps, speed control of the injection speed V based on the speed control patterns Vs etc. is performed until reaching the following switching points tc etc. COPYRIGHT: (C)2009,JPO&INPIT</description><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>PERFORMING OPERATIONS</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>TRANSPORTING</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2009</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDDz9PNydQ7x9PdTcPb3Cwny91HwdQ3x8HdRcPMPUkBI-vr7uHj6uSv4Ojp7ePq58jCwpiXmFKfyQmluBiU31xBnD93Ugvz41OKCxOTUvNSSeK8AIwMDSwNLMwNzM0djohQBAGlLKG0</recordid><startdate>20090507</startdate><enddate>20090507</enddate><creator>MARUYAMA TOSHIHIKO</creator><creator>OKADA HARUO</creator><scope>EVB</scope></search><sort><creationdate>20090507</creationdate><title>INJECTION CONTROL METHOD FOR INJECTION MOLDING MACHINE</title><author>MARUYAMA TOSHIHIKO ; OKADA HARUO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2009096076A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2009</creationdate><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>PERFORMING OPERATIONS</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>TRANSPORTING</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><toplevel>online_resources</toplevel><creatorcontrib>MARUYAMA TOSHIHIKO</creatorcontrib><creatorcontrib>OKADA HARUO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MARUYAMA TOSHIHIKO</au><au>OKADA HARUO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>INJECTION CONTROL METHOD FOR INJECTION MOLDING MACHINE</title><date>2009-05-07</date><risdate>2009</risdate><abstract>PROBLEM TO BE SOLVED: To effectively suppress sudden pressure fluctuation and to stabilize suppression to attain further improvement of quality and uniformity of molded products. 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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | INJECTION CONTROL METHOD FOR INJECTION MOLDING MACHINE |
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