Method and apparatus for detecting the working state of a printing press or the like
First Claim
1. A method of detecting the working state of a machine whose production time includes both operation time and downtime, the downtime being due to a plurality of possible causes, which method comprises:
- placing on a recorder table a record medium in the form of a flat sheet having a set of blanks to be filled in to record the working state of the machine as well as an elongated signal recording blank;
providing a recording head having a recording member;
moving the recording head relative to the signal recording blank along the length thereof;
deriving from the machine, during the progress of its production time, successive electrical signals indicative of the operation and at least approximate downtime causes of the machine; and
sending the successive signals to the recording head to move the recording member, as it is moved along the length of the recording blank, transversely to the length of the recording blank with different time intervals to record the signals in the recording blank along the length thereof with visually different shapes and dimensions, respectively, the recorded signals comprising essentially segments of line spaced apart differently lengthwise of the recording blank depending upon different signals;
whereby the operation time, downtime, and at least approximate downtime causes of the machine can be visually ascertained from the recording in the recording blank of the sheet and the recording can be readily transcribed in the set of blanks.
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Accused Products
Abstract
A method of detecting the lengths of normal operation time and downtime, and at least approximate causes for downtime, of a printing press during each preassigned period of production time. During the progress of each production period there are derived from the printing press its electrical control signals which are indicative of the printing operation and at least approximate downtime causes. The control signals are sequentially recorded in the form of corresponding, visually identifiable marks. A visual examination of the marking provides the desired data. There is also disclosed herein a recorder of typical construction for recording the signals in the practice of the inventive method.
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Citations
8 Claims
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1. A method of detecting the working state of a machine whose production time includes both operation time and downtime, the downtime being due to a plurality of possible causes, which method comprises:
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placing on a recorder table a record medium in the form of a flat sheet having a set of blanks to be filled in to record the working state of the machine as well as an elongated signal recording blank; providing a recording head having a recording member; moving the recording head relative to the signal recording blank along the length thereof; deriving from the machine, during the progress of its production time, successive electrical signals indicative of the operation and at least approximate downtime causes of the machine; and sending the successive signals to the recording head to move the recording member, as it is moved along the length of the recording blank, transversely to the length of the recording blank with different time intervals to record the signals in the recording blank along the length thereof with visually different shapes and dimensions, respectively, the recorded signals comprising essentially segments of line spaced apart differently lengthwise of the recording blank depending upon different signals;
whereby the operation time, downtime, and at least approximate downtime causes of the machine can be visually ascertained from the recording in the recording blank of the sheet and the recording can be readily transcribed in the set of blanks. - View Dependent Claims (2, 3, 4, 7, 8)
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5. A method of detecting the working state of an electrically controlled printing press or like machine whose production time includes both operation time and downtime, the downtime being due to a plurality of possible causes, which method comprises:
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placing on a recorder table a record medium in the form of a flat sheet having a set of blanks to be filled in to record the working state of the printing press as well as an elongated signal recording blank; providing a recording head having a recording member; moving the recording head relative to the signal recording blank along the length thereof; deriving from the press, during the progress of its production time, a sequence of electrical control signals controlling the operation of the press, the control signals including an "operation" signal for operating the press at normal speed, a "low" signal for continuously operating the press at low speed, and an "inching" signal for temporarily operating the press at low speed; and sending the successive signals to the recording head to move the recording member, as it is moved along the length of the recording blank, transversely to the length of the recording blank with different time intervals to record the signals in the recording blank along the length thereof with visually different shapes and dimensions, respectively, the recorded signals comprising essentially segments of line spaced apart differently lengthwise of the recording blank depending upon different signals; whereby the operation time, downtime, and at least approximate downtime causes of the press can be determined upon visual inspection of the recording in the recording blank of the sheet and the recording can be readily transcribed in the set of blanks. - View Dependent Claims (6)
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Specification