METHOD FOR CONTROLLING SPEED OF COMPRESSION MOLDING PRESS
PURPOSE:To perform precise molding by performing control accurately according to a set speed by performing correction corresponding to the pressure variation in a cylinder considering the compressibility of hydraulic oil. CONSTITUTION:The moving speed pattern of a slider 3 is preliminarily inputted...
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| creator | KURUMACHI MASANOBU NAKAGAWA TOKUJI IMANISHI ETSUJIRO KAJIYAMA KAZUYUKI TAKEUCHI NAOKI SANO TAKESHI KONDO HIROAKI |
| description | PURPOSE:To perform precise molding by performing control accurately according to a set speed by performing correction corresponding to the pressure variation in a cylinder considering the compressibility of hydraulic oil. CONSTITUTION:The moving speed pattern of a slider 3 is preliminarily inputted and set to a controller 14 and the flow rate set value Q0 of the hydraulic oil to be supplied to main and auxiliary cylinders 5, 6 is calculated from a speed set value (v) according to Q0=A.v (A is the cross-sectional area of the main and auxiliary cylinders). As a result, the slider 3 is moved at a set speed of v=Q0/A. When the slider 3 falls and the compression of a resin A is started in an upper mold 8, the internal pressures in the main and auxiliary cylinders 5, 6 rise. Herein, said pressures are detected by a pressure detector 13 to calculate pressure variation quantity and, further, a corrected flow rate and a flow rate order value Q are calculated in the controller 14. Then, hydraulic oil of a flow rate Q is supplied to the main and auxiliary cylinders 5, 6. By this method, the volumetric reduction of the hydraulic oil by pressure variation is corrected and the slider 3 is moved at the set speed (v). |
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CONSTITUTION:The moving speed pattern of a slider 3 is preliminarily inputted and set to a controller 14 and the flow rate set value Q0 of the hydraulic oil to be supplied to main and auxiliary cylinders 5, 6 is calculated from a speed set value (v) according to Q0=A.v (A is the cross-sectional area of the main and auxiliary cylinders). As a result, the slider 3 is moved at a set speed of v=Q0/A. When the slider 3 falls and the compression of a resin A is started in an upper mold 8, the internal pressures in the main and auxiliary cylinders 5, 6 rise. Herein, said pressures are detected by a pressure detector 13 to calculate pressure variation quantity and, further, a corrected flow rate and a flow rate order value Q are calculated in the controller 14. Then, hydraulic oil of a flow rate Q is supplied to the main and auxiliary cylinders 5, 6. By this method, the volumetric reduction of the hydraulic oil by pressure variation is corrected and the slider 3 is moved at the set speed (v).</description><language>eng</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS ; PERFORMING OPERATIONS ; PRESSES ; PRESSES IN GENERAL ; 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>1990</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=19900301&DB=EPODOC&CC=JP&NR=H0260720A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900301&DB=EPODOC&CC=JP&NR=H0260720A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KURUMACHI MASANOBU</creatorcontrib><creatorcontrib>NAKAGAWA TOKUJI</creatorcontrib><creatorcontrib>IMANISHI ETSUJIRO</creatorcontrib><creatorcontrib>KAJIYAMA KAZUYUKI</creatorcontrib><creatorcontrib>TAKEUCHI NAOKI</creatorcontrib><creatorcontrib>SANO TAKESHI</creatorcontrib><creatorcontrib>KONDO HIROAKI</creatorcontrib><title>METHOD FOR CONTROLLING SPEED OF COMPRESSION MOLDING PRESS</title><description>PURPOSE:To perform precise molding by performing control accurately according to a set speed by performing correction corresponding to the pressure variation in a cylinder considering the compressibility of hydraulic oil. CONSTITUTION:The moving speed pattern of a slider 3 is preliminarily inputted and set to a controller 14 and the flow rate set value Q0 of the hydraulic oil to be supplied to main and auxiliary cylinders 5, 6 is calculated from a speed set value (v) according to Q0=A.v (A is the cross-sectional area of the main and auxiliary cylinders). As a result, the slider 3 is moved at a set speed of v=Q0/A. When the slider 3 falls and the compression of a resin A is started in an upper mold 8, the internal pressures in the main and auxiliary cylinders 5, 6 rise. Herein, said pressures are detected by a pressure detector 13 to calculate pressure variation quantity and, further, a corrected flow rate and a flow rate order value Q are calculated in the controller 14. Then, hydraulic oil of a flow rate Q is supplied to the main and auxiliary cylinders 5, 6. By this method, the volumetric reduction of the hydraulic oil by pressure variation is corrected and the slider 3 is moved at the set speed (v).</description><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</subject><subject>PERFORMING OPERATIONS</subject><subject>PRESSES</subject><subject>PRESSES IN GENERAL</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>1990</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLD0dQ3x8HdRcPMPUnD29wsJ8vfx8fRzVwgOcHV1UfB3Awr6BgS5Bgd7-vsp-Pr7uIAkwQI8DKxpiTnFqbxQmptBwc01xNlDN7UgPz61uCAxOTUvtSTeK8DDwMjMwNzIwNGYCCUAUVEopA</recordid><startdate>19900301</startdate><enddate>19900301</enddate><creator>KURUMACHI MASANOBU</creator><creator>NAKAGAWA TOKUJI</creator><creator>IMANISHI ETSUJIRO</creator><creator>KAJIYAMA KAZUYUKI</creator><creator>TAKEUCHI NAOKI</creator><creator>SANO TAKESHI</creator><creator>KONDO HIROAKI</creator><scope>EVB</scope></search><sort><creationdate>19900301</creationdate><title>METHOD FOR CONTROLLING SPEED OF COMPRESSION MOLDING PRESS</title><author>KURUMACHI MASANOBU ; NAKAGAWA TOKUJI ; IMANISHI ETSUJIRO ; KAJIYAMA KAZUYUKI ; TAKEUCHI NAOKI ; SANO TAKESHI ; KONDO HIROAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0260720A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1990</creationdate><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</topic><topic>PERFORMING OPERATIONS</topic><topic>PRESSES</topic><topic>PRESSES IN GENERAL</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>KURUMACHI MASANOBU</creatorcontrib><creatorcontrib>NAKAGAWA TOKUJI</creatorcontrib><creatorcontrib>IMANISHI ETSUJIRO</creatorcontrib><creatorcontrib>KAJIYAMA KAZUYUKI</creatorcontrib><creatorcontrib>TAKEUCHI NAOKI</creatorcontrib><creatorcontrib>SANO TAKESHI</creatorcontrib><creatorcontrib>KONDO HIROAKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KURUMACHI MASANOBU</au><au>NAKAGAWA TOKUJI</au><au>IMANISHI ETSUJIRO</au><au>KAJIYAMA KAZUYUKI</au><au>TAKEUCHI NAOKI</au><au>SANO TAKESHI</au><au>KONDO HIROAKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR CONTROLLING SPEED OF COMPRESSION MOLDING PRESS</title><date>1990-03-01</date><risdate>1990</risdate><abstract>PURPOSE:To perform precise molding by performing control accurately according to a set speed by performing correction corresponding to the pressure variation in a cylinder considering the compressibility of hydraulic oil. CONSTITUTION:The moving speed pattern of a slider 3 is preliminarily inputted and set to a controller 14 and the flow rate set value Q0 of the hydraulic oil to be supplied to main and auxiliary cylinders 5, 6 is calculated from a speed set value (v) according to Q0=A.v (A is the cross-sectional area of the main and auxiliary cylinders). As a result, the slider 3 is moved at a set speed of v=Q0/A. When the slider 3 falls and the compression of a resin A is started in an upper mold 8, the internal pressures in the main and auxiliary cylinders 5, 6 rise. Herein, said pressures are detected by a pressure detector 13 to calculate pressure variation quantity and, further, a corrected flow rate and a flow rate order value Q are calculated in the controller 14. Then, hydraulic oil of a flow rate Q is supplied to the main and auxiliary cylinders 5, 6. By this method, the volumetric reduction of the hydraulic oil by pressure variation is corrected and the slider 3 is moved at the set speed (v).</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS PRESSES PRESSES IN GENERAL 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 | METHOD FOR CONTROLLING SPEED OF COMPRESSION MOLDING PRESS |
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