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×Ô¶¯»¯×¨ÒµÂÛÎÄ·¶ÎÄ Ä¿Â¼ ÕªÒªI AbstractII µÚ1Õ Ð÷ÂÛ1 1.1 ±³¾°1 1.2 Ñо¿ÄÚÈÝ2 µÚ2Õ עËÜ»úµÄÌص㼰·¢Õ¹×´¿ö3 2.1 ×¢ËÜ»úµÄÌصã3 2.2 ×¢ËÜ»úµÄ·¢Õ¹3 2.2.1 ×¢ËÜ»úµÄ·¢Õ¹Àú³Ì3 2.2.2 ×¢ËÜ»úµÄ·¢Õ¹¾­ÀúÁËÒÔÏÂÎå¸ö½×¶Î4 2.3 ×¢ËÜ»úµçÆø¿ØÖÆ·½Ê½µÄÌصã4 2.3.1 ¼ÌµçÆ÷¡¢½Ó´¥Æ÷¿ØÖÆ4 2.3.2 µç×Óµç·˳Ðò¿ØÖÆ5 2.3.3 ¿É±à³Ì¿ØÖÆÆ÷¿ØÖÆ5 2.3.4 ΢»ú¿ØÖÆ5 2.4 ±¾ÕÂС½á6 µÚ3Õ עËÜ»úµÄ½á¹¹ºÍ¹¤ÒÕ7 3.1 ×¢ËÜ»úµÄ½á¹¹7 3.2 ×¢ËÜ»úµÄ¹¤ÒÕ8 3.3 ±¾ÕÂС½á9 µÚ4Õ עËÜ»ú×Ô¶¯µ÷Ä£10 4.1 ×¢ËÜ»ú¿ØÖÆÆ÷µÄÓ²¼þ½á¹¹10 4.2 ϵͳԭÀí11 4.3 ϵͳ×ÜÌåÉè¼Æ12 4.3.1 Ó²¼þÉè¼Æ12 4.3.2 Èí¼þÉè¼Æ12 4.4 ±¾ÕÂС½á14 µÚ5Õ PLCµÄ¹¤×÷Ô­Àí¼°ÔÚ×¢ËÜ»úÖеÄÓ¦ÓÃ15 5.1 PLC×é³É¼°¹¤×÷Ô­Àí15 5.1.1 Ó²¼þ×é³É15 5.1.2 Èí¼þ×é³É16 5.1.3 ¹¤×÷Ô­Àí16 5.2 »ùÓÚPLCµÄ×¢ËÜ»ú¿ØÖÆϵͳ16 5.2.1 ¿ØÖÆϵͳ¸ÅÊö16 5.2.2 ÊäÈëÊä³ö17 5.3 ±¾ÕÂС½á19 µÚ6Õ ×Ô¶¯µ÷Ä£Éè¼Æ¼°µ÷ÊÔ20 6.1 ×Ô¶¯µ÷Ä£Ô­Àí¼°Á÷³Ìͼ20 6.1.1 Ô­Àí20 6.1.2 »ùÓÚPLC±à³ÌµÄ×Ô¶¯µ÷Ä£³ÌÐò22 6.2 ×Ô¶¯µ÷Ä£µ÷ÊÔ30 6.3 ±¾ÕÂС½á36 µÚ7Õ ½áÂÛ37 ÖÂл38 ²Î¿¼ÎÄÏ×39 ÕªÒª ͨ¹ý¶Ô×¢ËÜ»úµÄ×¢Éä³ÉÐ͵ŤÒÕ·ÖÎöÒÔ¼°ÒºÑ¹ÏµÍ³·ÖÎö£¬Íê³ÉÁË×¢ËÜ»úµÄPLC¿ØÖÆϵͳÉè¼Æ£¬°üÀ¨Ó²¼þºÍÈí¼þÉè¼Æ¡£¿É±à³Ì¿ØÖÆÆ÷£¨PLC£©Ó¦ÓÃÓÚ×¢ËÜ»úÖУ¬ÓóÌÐò¶ÔÆ乤×÷¹ý³Ì½øÐпØÖÆ£¬²»½ö¿ÉʹµçÆø¿ØÖƵĿɿ¿ÐÔ´ó´óÌá¸ß£¬»¹Ìá¸ßÁË×¢Ëܹ¤×÷ЧÂÊ£»¶øÇÒÐ޸IJÎÊý·½±ã£¬Ôö¼ÓϵͳÈáÐÔ£¬¸üÓÐÀûÓÚÌá¸ß×¢ËÜÖÊÁ¿¡£ ±¾ÂÛÎÄ·ÖÎöÁË×¢ËÜ»úÁ¬¸ËʽºÏģϵͳµÄµ÷Ä£Ô­Àí£¬Ñо¿ÁË»ùÓÚPLC¿ØÖÆʵÏÖ×Ô¶¯µ÷Ä£µÄÓ²¼þÒªÇóºÍÈí¼þÉè¼Æ¡£Æä·½·¨¼òµ¥£¬ÐԼ۱ȸߣ¬¾­Êµ¼ÊÓ¦ÓÃÈ¡µÃÂúÒâµÄЧ¹û¡£ ¹Ø¼ü´Ê ×¢ËÜ»ú¡¢×Ô¶¯µ÷Ä£¡¢PLC¡¢µ¥Æ¬»ú Abstract This paper introduced application of PLC in inject plastics machine.By analyzing the process of SZ¡ª250g inject plastics machine and the hydraulic system,PLC control system design is accomplished.PLCis used in the control of inject plastics machine,we can make the program to control the process.Not only induce the reliability of electrical control and the operating efficency,but also modify data easily¡¢induce the flexibility of the system¡¢lift the quality of injecting. The principle of mold¡ªadjustment was analyzed and the hardware demand and software realization of automaticmold¡ªadjustment based on PLC control in toggle clamping system of injection machine were studied£®It characterizes simplemethod and high performance-price ratio with the satisfied practice applications. Key words injection machine¡¢automatic mold¡ªadjustment PLC¡¢Single chip micyocompter
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