CONTROL SYSTEM FOR BUFFER IN PRODUCTION LINE

• Main Authors: HOSHINO TOSHIHIKO, SAKAMOTO TOSHIHARU
• Format: Patent
• Language: English
• Published: 31.08.1990
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; COMBINED OPERATIONS; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PHYSICS; REGULATING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; UNIVERSAL MACHINE TOOLS

PURPOSE:To avoid the stoppage of the whole production line as far as possible by mutually communicating the buffer areas provided at the fore stage and aft stage of a work process, and relatively enlarging and contracting the fore stage or aft stage buffer area. CONSTITUTION:A fore stage buffer area 8 moorable in order of the work 2 which is carried in from a feeding line 4 is installed at the fore stage of a work process 3 and a rear stage buffer area 9 at the aft stage, the both are mutually communicated and divided by a control device 14, the transfer of the work 2 inside the buffer areas 8, 9 is controlled and the stock control is performed. The control device 14 makes the fore stage buffer area 9 and rear stage buffer area 9 to obtain an equal storage capacity in a normal work state and when the abnormal signal 12 or 13 is output from a work device, the transfer of the work 2 by the conveyor driving parts 15a, 15b, 15c... of each shuttle conveyor 10 is controlled based on the control signals 16a, 16b, 16c... transmitted from the control device 14 and the enlargement and contraction of the buffer areas 8, 9 are performed.