DEVICE FOR CONTROLLING INJECTION FOLLOW-UP IN DIE CASTING MACHINE
PROBLEM TO BE SOLVED: To prevent the breakage in a biscuit part easy to remain in a fixed die side and to open the dies under the state of a cast product surely remaining in the shifting die side by synchronously following the advancing work of an injection cylinder always after a die opening work....
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| creator | TAKAMURA MASAYUKI MIZOTA YUKIO YOKOYAMA KOJI |
| description | PROBLEM TO BE SOLVED: To prevent the breakage in a biscuit part easy to remain in a fixed die side and to open the dies under the state of a cast product surely remaining in the shifting die side by synchronously following the advancing work of an injection cylinder always after a die opening work. SOLUTION: This control device in a die casting machine is provided with an injection speed detecting means for detecting the shifting speed of an injection plunger 22, a die opening speed detecting means for detecting the shifting speed of a shifting die plate 4 and a flow rate control valve 35 for controlling the flow rate of pressure oil supplied to the injection cylinder 20. Further, a control means is provided for controlling the opening degree of the flow rate control valve 34 so that the shifting speed of the injection plunger 22 is equal to the shifting speed of the shifting die plate 4 by comparing successively the shifting speeds of the injection plunger 22 with the shifting speeds of the shifting die plate 4 detected with the injection speed detecting means and the die opening speed detecting means, respectively from the starting time of the die opening. |
| format | Patent |
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SOLUTION: This control device in a die casting machine is provided with an injection speed detecting means for detecting the shifting speed of an injection plunger 22, a die opening speed detecting means for detecting the shifting speed of a shifting die plate 4 and a flow rate control valve 35 for controlling the flow rate of pressure oil supplied to the injection cylinder 20. Further, a control means is provided for controlling the opening degree of the flow rate control valve 34 so that the shifting speed of the injection plunger 22 is equal to the shifting speed of the shifting die plate 4 by comparing successively the shifting speeds of the injection plunger 22 with the shifting speeds of the shifting die plate 4 detected with the injection speed detecting means and the die opening speed detecting means, respectively from the starting time of the die opening.</description><edition>6</edition><language>eng</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; PERFORMING OPERATIONS ; POWDER METALLURGY ; 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</subject><creationdate>1997</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970513&DB=EPODOC&CC=JP&NR=H09122879A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970513&DB=EPODOC&CC=JP&NR=H09122879A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKAMURA MASAYUKI</creatorcontrib><creatorcontrib>MIZOTA YUKIO</creatorcontrib><creatorcontrib>YOKOYAMA KOJI</creatorcontrib><title>DEVICE FOR CONTROLLING INJECTION FOLLOW-UP IN DIE CASTING MACHINE</title><description>PROBLEM TO BE SOLVED: To prevent the breakage in a biscuit part easy to remain in a fixed die side and to open the dies under the state of a cast product surely remaining in the shifting die side by synchronously following the advancing work of an injection cylinder always after a die opening work. SOLUTION: This control device in a die casting machine is provided with an injection speed detecting means for detecting the shifting speed of an injection plunger 22, a die opening speed detecting means for detecting the shifting speed of a shifting die plate 4 and a flow rate control valve 35 for controlling the flow rate of pressure oil supplied to the injection cylinder 20. Further, a control means is provided for controlling the opening degree of the flow rate control valve 34 so that the shifting speed of the injection plunger 22 is equal to the shifting speed of the shifting die plate 4 by comparing successively the shifting speeds of the injection plunger 22 with the shifting speeds of the shifting die plate 4 detected with the injection speed detecting means and the die opening speed detecting means, respectively from the starting time of the die opening.</description><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>CASTING</subject><subject>CASTING OF METALS</subject><subject>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</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>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHB0cQ3zdHZVcPMPUnD29wsJ8vfx8fRzV_D083J1DvH09wPK-Pj4h-uGBgDFFFw8XRWcHYNDQEp8HZ09PP1ceRhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvFeAh4GloZGRhbmlozExagDLGisH</recordid><startdate>19970513</startdate><enddate>19970513</enddate><creator>TAKAMURA MASAYUKI</creator><creator>MIZOTA YUKIO</creator><creator>YOKOYAMA KOJI</creator><scope>EVB</scope></search><sort><creationdate>19970513</creationdate><title>DEVICE FOR CONTROLLING INJECTION FOLLOW-UP IN DIE CASTING MACHINE</title><author>TAKAMURA MASAYUKI ; MIZOTA YUKIO ; YOKOYAMA KOJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH09122879A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</creationdate><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>CASTING</topic><topic>CASTING OF METALS</topic><topic>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</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>TAKAMURA MASAYUKI</creatorcontrib><creatorcontrib>MIZOTA YUKIO</creatorcontrib><creatorcontrib>YOKOYAMA KOJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKAMURA MASAYUKI</au><au>MIZOTA YUKIO</au><au>YOKOYAMA KOJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DEVICE FOR CONTROLLING INJECTION FOLLOW-UP IN DIE CASTING MACHINE</title><date>1997-05-13</date><risdate>1997</risdate><abstract>PROBLEM TO BE SOLVED: To prevent the breakage in a biscuit part easy to remain in a fixed die side and to open the dies under the state of a cast product surely remaining in the shifting die side by synchronously following the advancing work of an injection cylinder always after a die opening work. SOLUTION: This control device in a die casting machine is provided with an injection speed detecting means for detecting the shifting speed of an injection plunger 22, a die opening speed detecting means for detecting the shifting speed of a shifting die plate 4 and a flow rate control valve 35 for controlling the flow rate of pressure oil supplied to the injection cylinder 20. Further, a control means is provided for controlling the opening degree of the flow rate control valve 34 so that the shifting speed of the injection plunger 22 is equal to the shifting speed of the shifting die plate 4 by comparing successively the shifting speeds of the injection plunger 22 with the shifting speeds of the shifting die plate 4 detected with the injection speed detecting means and the die opening speed detecting means, respectively from the starting time of the die opening.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES PERFORMING OPERATIONS POWDER METALLURGY 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 | DEVICE FOR CONTROLLING INJECTION FOLLOW-UP IN DIE CASTING MACHINE |
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