摘要:
An apparatus is disclosed for the automatic coating of articles. The apparatus has a spray device controlled by a programmed control device. A transport device transports the articles along a predetermined path to a coating position and then away therefrom after coating. A sensor monitors the position of the article and generates signals representative thereof, preferably generating one signal each time the article moves a predetermined distance (e.g. 2 cm.) along the path. A second sensor generates additional signals to the control device when an article passes a predetermined point, also indicating which of several types of articles has been detected. The control device controls the spraying process responsive to these signals. If desired, portions of the article that are moved sequentially into the coating position can be sprayed in different manners, e.g. with the spray devices positioned or oriented differently, or using different coating materials, etc. The control device is preferably reprogrammable.
摘要:
A control system for a machine and the like having at least one cycle made up of at least two events utilizes at least one momentarily operable switching device to actuate the cycle and digital circuitry including a plurality of NAND and AND gates to implement a momentary zero potential signal produced by the switching device. The control system includes a control circuit having programming means, digital circuitry further including at least two NOR gates for latching the control circuit in various modes of operation, and timing circuitry for deriving a selectable timing period for at least one event of the cycle; and gate circuit means including additional digital circuitry for regulating at least another event of the cycle in response to the control circuit.
摘要:
Digital information related to plural kinds of stitch patterns is stored in a memory means such as an ROM disposed within an electronic sewing machine. A keyboard means is provided for selecting desired stitch patterns stored within the ROM at operator's choices. Output signals of the keyboard means are temporarily stored in a dynamic memory means such as a shift register. A digital control circuit is arranged so that the ROM develops signals related to the stitch pattern selected through the shift register, to thereby control a stitch forming mechanism.
摘要:
A switching circuit for selectively coupling a load to an A.C. power source is disclosed. The switching circuit includes a diode-commutated master relay contact and a pilot relay contact coupled in series therewith. The master and pilot relay contacts are coupled between a load and the power source in such a manner that power is applied to the load whenever both the master and pilot relay contacts are closed. A timing and control circuit performs a switching operation to open the master relay contact during a first half-cycle of the A.C. waveform of the power source during which the commutating diode is forward-biased. The pilot relay contact changes state during the next half-cycle of the A.C. waveform and the master relay contact is reclosed during the following half-cycle of the A.C. waveform.
摘要:
Selected or successive cigarettes of a series of cigarettes which are conveyed in a making and/or processing machine are acted upon by ejecting, perforating and/or other cigarette influencing instrumentalities during travel along a selected section of their path. A pulse generating system transmits a series of timing pulses during each interval of advancement of a cigarette along a unit section of the path, and a selected timing pulse of the series of pulses is used to apply a control signal to the influencing instrumentality while the cigarette to be influenced is located in a predetermined position with respect to such instrumentality. An additional timing pulse of the same series is used to terminate the application of the control signal. The pulses which are used for application and/or termination of application of control signals can be changed in response to changing speed of the prime mover of the machine or machines. The selected and/or the additional pulses can be further utilized to effect the transport of control signals through a shift register which is interposed between the signal generating device (e.g., a testing device) and the influencing instrumentality.
摘要:
A programming control system for controlling the processing steps of an electrostatic printing machine of the type employing an endless photoreceptor belt. A photoreceptor speed sensitive element in the form of a transfer roller is utilized for resetting on complete machine timing cycle of processing operation. This cycle, called pitch is applied to the belt and comprises a predetermined number of electrical pulses some of which control machine events.
摘要:
Centralized registers in which commands can be written are provided in correspondence with a plurality of control modules. Centralized registers for managing the pre-emption status of control modules and their tree-configuration hierarchical relations are also provided in correspondence with a plurality of control modules. Control modules to which a command should be transmitted are specified by looking up the registers that manage the pre-emption status and the tree-configuration hierarchical relations. When control modules have been specified, the latched command is written to the registers in which commands can be written.
摘要:
A control system for controlling the processing steps of an electrostatic printing machine including means for generating a series train of clock pulses, means for generating a series train of start or reset pulses and control logic responsive to the reset and clock pulses to generate a plurality of timed control signals for implementing certain of the processing steps. A transfer roller, the linear surface speed of which is synchronized with the moving speed of the photoreceptor, may be used to generate the reset pulses for the successive cycle of processing operation. The intervals between the successive reset pulses, called pitches, are in effect marked by the clock pulses, some of which are used to generate the timed control signals.
摘要:
A control unit for a sewing machine includes a mechanism for mechanically positioning the stitch-forming members and a pattern memory unit for controlling this mechanism, from which stitch position detemining code words belonging to a specific pattern can be selected by the operator. The code word for determining a stitch position is read from the pattern memory into a shift register. The shift register is shifted in relation to the movement of the main shaft of the sewing machine so that code words for each successive stitch of a pattern are successively made available to the mechanical positioning mechanism. The succession of code words in a pattern can be recirculated in the shift register at the end of a pattern cycle, for repetition of the pattern.
摘要:
A switching device comprises a plurality of control points and a plurality of switching elements, and each control point is associated with one or more switching elements. The switching elements are actuated by the presence of actuation information at the associated control point. A shift register having states related to the control points supplies actuation information to the control points in a predetermined sequence under the control of timing pulses which advance the states of the register whereby a series of combination of switching functions may be performed.