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4559828 System for operational monitoring of a machine
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N e w Patents
a positive or negative additional rotating movement of the gear or the worm. This additional rotating movement is superimposed on the corresponding basic revolution of the gear or the worm. In this way, first one flank and subsequently the other flank of each gear tooth is machined to its final dimension. With this process, a full linear contact exists between the grinding worm and the tooth flank of the gear during roughing independent of the amount of material to be machined. Due to the existing play, an effective cooling is possible so that high grinding outputs can be achieved.
and for storing the vibration data in the form of a time series in the memory, a central monitor remote from the data processing unit adapted to store another program therein, including a computer connected to the frequency analyzer, and providing for monitoring and further processing of the time series, a control unit connected to the monitor, and a communication link connecting the data processing unit and the monitor for periodic transmission of the time series from the memory in the microcomputer to the frequency analyzer, and for transferring the other program from the monitor back to the data processing unit, the control unit also providing for control of the sampling device,
4559800 PREHEAT START-UP A R R A N G E M E N T FOR S T A M P I N G AND F O R M I N G P R E S S E S Omar L Brown assigned to Dayton Reliable Tool & Mfg Co The connecting arms or connection elements of a metalworking press, such as a metal forming or stamping press, are provided with flat electrical resistance heating pads attached directly to the web section of the connections for applying heat to the connections for preheating the connections to a desired temperature, prior to press start up, to stabilize the dimensions thereof.
4559828 SYSTEM FOR MONITORING
OPERATIONAL OF A MACHINE
Ludwik Liszka, 910 36 Ssweded In a system for monitoring the condition of a machine by vibration analysis, including at least one vibration sensor in operative -ontact with the machine for sensing machine vibrations, and for providing a vibration signal at its output, a sampling device connected to the output of the vibration sensor for sampling, amplifying and digitizing the signal obtained from the vibration sensor, a frequency analyzer arranged to receive the sampled and digitized signal from the sampling device, and a pattern recognizer coupled to the frequency analyzer for detection of any abnormal frequency spectra, the improvement includes a data processing unit adapted to store control programs, which in turn is connected to the vibration sensor, and includes a microcomputer inclusive of a random access memory, for obtaining vibration data from the sensor,
4559991 METHOD AND SYSTEM OF CONTROLLING INJECTION MOLDING MACHINES Noriyuki Motomura, Hiroyuki Tsuboi, Sadayoshi Yamada, Zama, Japan assigned to Toshiba Kikai Kabushiki Kaisha In a method and system of controlling an injection molding machine in which molten metal in an injection cylinder is injected into a metal mold by an injection plunger operated by an oil pressure operator and in which pressurized oil is supplied to the oil pressure operator through adjustable valve means actuated by actuator means, various factors relating to an injection condition are measured and an injection command signal is calculated based on the measured factors for providing a predetermined injection pattern. The actuator means is operated by the injection command signal so as to adjust the adjustable valve means to a degree of opening necessary to establish an optimum injection condition.
4560289 SPINDLE MOUNTING ASSEMBLY WITH SQUEEZE FILM DAMPING David Wood assigned to Cincinnati Milacron Inc A rotatable spindle is carried in bearings located in one end of the bore in an adapter. The other end of the adapter is fixed in a machine base so as to cantilever the adapter. A damping chamber is formed along the adapter length between the
N e w Patents
a positive or negative additional rotating movement of the gear or the worm. This additional rotating movement is superimposed on the corresponding basic revolution of the gear or the worm. In this way, first one flank and subsequently the other flank of each gear tooth is machined to its final dimension. With this process, a full linear contact exists between the grinding worm and the tooth flank of the gear during roughing independent of the amount of material to be machined. Due to the existing play, an effective cooling is possible so that high grinding outputs can be achieved.
and for storing the vibration data in the form of a time series in the memory, a central monitor remote from the data processing unit adapted to store another program therein, including a computer connected to the frequency analyzer, and providing for monitoring and further processing of the time series, a control unit connected to the monitor, and a communication link connecting the data processing unit and the monitor for periodic transmission of the time series from the memory in the microcomputer to the frequency analyzer, and for transferring the other program from the monitor back to the data processing unit, the control unit also providing for control of the sampling device,
4559800 PREHEAT START-UP A R R A N G E M E N T FOR S T A M P I N G AND F O R M I N G P R E S S E S Omar L Brown assigned to Dayton Reliable Tool & Mfg Co The connecting arms or connection elements of a metalworking press, such as a metal forming or stamping press, are provided with flat electrical resistance heating pads attached directly to the web section of the connections for applying heat to the connections for preheating the connections to a desired temperature, prior to press start up, to stabilize the dimensions thereof.
4559828 SYSTEM FOR MONITORING
OPERATIONAL OF A MACHINE
Ludwik Liszka, 910 36 Ssweded In a system for monitoring the condition of a machine by vibration analysis, including at least one vibration sensor in operative -ontact with the machine for sensing machine vibrations, and for providing a vibration signal at its output, a sampling device connected to the output of the vibration sensor for sampling, amplifying and digitizing the signal obtained from the vibration sensor, a frequency analyzer arranged to receive the sampled and digitized signal from the sampling device, and a pattern recognizer coupled to the frequency analyzer for detection of any abnormal frequency spectra, the improvement includes a data processing unit adapted to store control programs, which in turn is connected to the vibration sensor, and includes a microcomputer inclusive of a random access memory, for obtaining vibration data from the sensor,
4559991 METHOD AND SYSTEM OF CONTROLLING INJECTION MOLDING MACHINES Noriyuki Motomura, Hiroyuki Tsuboi, Sadayoshi Yamada, Zama, Japan assigned to Toshiba Kikai Kabushiki Kaisha In a method and system of controlling an injection molding machine in which molten metal in an injection cylinder is injected into a metal mold by an injection plunger operated by an oil pressure operator and in which pressurized oil is supplied to the oil pressure operator through adjustable valve means actuated by actuator means, various factors relating to an injection condition are measured and an injection command signal is calculated based on the measured factors for providing a predetermined injection pattern. The actuator means is operated by the injection command signal so as to adjust the adjustable valve means to a degree of opening necessary to establish an optimum injection condition.
4560289 SPINDLE MOUNTING ASSEMBLY WITH SQUEEZE FILM DAMPING David Wood assigned to Cincinnati Milacron Inc A rotatable spindle is carried in bearings located in one end of the bore in an adapter. The other end of the adapter is fixed in a machine base so as to cantilever the adapter. A damping chamber is formed along the adapter length between the