• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SU727130A3
    申请号:SU772504495
    申请日:1977-07-12
    公开日:1980-04-05
    发明作者:Накагава Хироси
    申请人:Токио Кикаи Сейсакусе, Лтд (Фирма)；
    IPC主号:
    专利说明:

    about p and with And neither
    INVENTED
    Union of Soviet
    Socialist
    Republics
    TO THE PATENT
    USSR State Committee for Inventions and Discoveries (61) Additional to the patent - (22) Declared 12.07.77 (21) 2504495 / 28-12 (23) Priority - (32) 30.12.76 (31) 159251/76 (33) Japan
    Posted on 04/05/8 &> Bulletin No. 13
    Date of publication of the description 0504.80 (51) M. Cl. 2
    B 65 N 25/26 (53) UDC 6 81.62 (088.8) (72) Author of the invention (71) Applicant
    Alien
    Hiroshi Nakagawa (Japan)
    Foreign company ’'Tokyo Kikai Seisakuse LTD' '(Japan) (54) DEVICE FOR AUTOMATIC REGULATION OF THE SIDE EDGE OF THE PAPER CANVAS
    IN A ROLL PRINTING MACHINE
    The invention relates to equipment for printing products and can be used in roll presses with a paper-conducting system that has means for adjusting the position of the lateral edge of a paper web, for example, a paper-conducting roller, one of whose ends is stationary and the other can move depending on the results of determination position of the side edge of the web.
    A device is known for automatically adjusting the position of the lateral edge of a paper web in a web press, comprising a photoelectric sensor with an optical system and a photocell and electrically connected with it and between each other a circuit for converting light signals into electrical ones, a circuit for comparing signals from the sensor and an electric drive control circuit position of the paper roll [1].
    This device contains two nodes of photocells, one of which is installed in a position shifted slightly inward from the side edge to the driving stream, and the other in a position spaced slightly from the side edge in the opposite direction to the side edge of the web. Both nodes of the photocells are installed side by side and cannot be located close to each other because of their dimensions, which affects the accuracy of the device itself.
    The purpose of the invention is to increase the accuracy of regulation of the position of the lateral edges of the paper web.
    The goal is achieved by the fact that in the device for automatically adjusting the position of the lateral edge of the paper web, the photoelectric sensor has three optical fibers, each of which is connected to a corresponding photocell, and the comparison circuit has two comparison blocks of converted light signals; the input of the first comparison block being connected to the outputs of the first and a second photocell, and the input of the second comparison unit is connected to the outputs of the first and third photocells.
    In FIG. 1 shows a schematic diagram of the described device;
    in FIG. 2 - electrical diagram of the device; in FIG. 3 is a diagram of the mutual arrangement of the optical fibers and the lateral 'edge of the web.
    The paper web 1 with a lateral edge 2 moves along the paper-conducting roller 3 ,. the surface of which does not reflect light, The device for determining the position of the lateral edge of the web contains a light source 4. an optical system consisting of lenses 5-7 and a directing light beam 8, a light guide 9, a conversion circuit 10 of light signals into electrical signals with photocells, a connector 11, circuits gain .1.2-14 and comparison schemes 15 and 16,
    The electrical circuit of the device includes circuits for converting, comparing, and controlling the electric drive of the position of the paper roller. The light signal conversion circuit has photocells: light-receiving diodes 17-19 and transistors 20-22, through each of which the collector current passes in proportion to the amount of light received by each light-receiving diode. The control circuit of the positional drive of the paper roll contains transistors 23 and 24, which control the windings of the relays 25 and 26.The relay coil 25, when current is applied, drives the position of the paper roll to bias the moving web to the right, and the relay winding 26 to the left.
    The light emitted by the light source 4 is reduced by the optical system to a beam 8 near the lateral edge 2 of the moving web 1. The reflected light from the beam 8 enters the light guide 9. The reflected light beam is introduced into the light guide 27-29. The light introduced into the fiber is converted into electrical signals by the conversion circuit 10, and the converted signals are fed into the amplification circuits through the connector 11. The comparison circuit 15 compares the output of the amplification circuit 12, amplifying the signal corresponding to the fiber 27, with the output of the amplifying circuit. 13, amplifying the electric a signal corresponding to the optical fiber 28, and the comparison circuit 16 compares the output of the amplification circuit 13 with the output of the amplification circuit 14, amplifying the electrical signal corresponding to the optical fiber 29.
    In the .10 conversion circuit, light-receiving diodes 17–19 and transistors 20–22 are located on a single printed circuit board. The diode 17 and the transistor 20 convert the light signal from the fiber 27, the diode 18 and the transistor 21 to the signal oz 1 of the fiber 28, and the diode 19 and the transistor 22 to the signal from the fiber 29. The collector voltage of the transistor 20 is amplified by the amplification circuit 12 and inserted into the positive input terminal the comparison circuit 15, and the voltage of the collector of the transistor 22 is amplified by the amplification circuit 14 and inserted into the negative input terminal of the comparison circuit 16. In addition, the voltage of the collector of the transistor is amplified by the amplification circuit 13 and introduced into the current circuit composed of. the diode 30 and the resistor 31, and the voltage of the resistor 31 is input to the positive input terminal of the comparison circuit 16. At the same time, the voltage of the resistor 32 is input to the negative input terminal of the comparison circuit 15. The comparison circuit 15 controls the base current of the transistor 23 by comparing the input voltage level from the circuit gain 12 with the input voltage level from the resistor 32, and the comparison circuit 16 controls the base current of the transistor 24 by comparing the input voltage level from the gain circuit 14 with the input voltage level from the resistor 31. In that case, when the moving web is in the correct predetermined position, in the comparison circuits 15 and 16, the level of the input voltage input to the positive input terminal is set equal to the level of the input voltage input to the negative input terminal.
    The device operates as follows.
    When the moving web 1 moves in the correct predetermined position (position I, II in FIG. 3), the difference between each input voltage level in the comparison circuits 15 and 16 is zero. Accordingly, both transistors 23 and 24 are not powered by the base current and are turned off. Therefore, the current is not supplied to the coil of the relay 25 and the coil of the relay 26 and the electric position of the paper roll 3 is not driven and the web is held in a predetermined position.
    If the web moves to the right of the preset position (position III, IY in FIG. 3), the brightness of the light entering the light guide 29 becomes larger. As a result, the collector current of the transistor 22 increases and the output voltage increases accordingly. The brightness of the light entering the fibers 27 and 28 remains at the same level. As a result of this, only the voltage at the negative input terminal of the comparison circuit 16 is increased. In this case, the transistor 24 is turned on and, when the current is supplied to the relay coil 26, the electric drive of the position of the roller 3 is activated. At this time, the transistor 23 is in the off state and the current is not supplied to the coil relay 25. Accordingly, the moving web of paper moves to the left, that is, returns to the correct position.
    If the web moves to the left of the preset position (positions Y and YT. In Fig. 3.1, the brightness of the light entering the light guide 27 decreases.
    As a result, the collector current of the transistor 20. decreases and the output voltage decreases accordingly. The brightness of the light entering the optical fibers 28 and 29 remains at the same level. As a result of this, the voltage of only the comparison circuit 15 at the positive input terminal decreases. In this case, the transistor 23 is turned on and when the current is supplied to the winding of the relay 25, the electric drive of the position of the roller 3 is activated. Accordingly, the moving web moves to the right and returns to the correct position.
    The proposed device allows to determine the brightness of three sections closely spaced from each other, which · 'increases the accuracy of regulation of the position of the lateral edge of the web ..
    权利要求:
    Claims (1)
    [1]
    The imprint relates to equipment for printed products and can be used in web-fed printing machines with a paper-passing system, which has means for adjusting the position of the side edge of the paper web, for example, the paper-feed line of our roller, one end of which is fixed and the other can move depending on results of determining the position of the lateral edge of the web. A device for automatically controlling the position of the side edge of a paper web in a roll printing machine is known, comprising a photoelectric sensor with an optical system and a photocell and electrically connected with it and between them a circuit for converting light signals to electrical, a circuit comparing the signals from the sensor and a circuit for controlling the actuator paper guide roller 1. This device contains two photocell assemblies, one of which is set in the position l shifted slightly inward from the side Both edges are in a position that is slightly apart from the side edge in the direction opposite to the side edge of the web. Both photocell assemblies are located close to each other and cannot be located close to each other due to their size, which affects accuracy of the device itself. The purpose of the invention is to improve the accuracy of adjusting the position of the side edge of the paper flow. The goal is achieved by the fact that in the device for automatically controlling the position of the side edge of the paper web, the photoelectric sensor has three optical fibers, each of which is connected to a corresponding photocell, and the comparison circuit has two comparison units of converted light signals and the input of the first comparison block is connected to the outputs of the first and second photoelements, and the input of the second comparison unit is connected to the outputs of the first and third photocells. FIG. 1 is a schematic diagram of the described device; in fig. 2 - electric circuit of the device; in fig. 3 is a diagram of the mutual arrangement of the light guides and the side edge of the web. The paper web I with the side skirt 2 moves along the paper line of the cheeks ;. roller 3 ,. in ver X: in which k e reflects light; The device for determining the margin of the juice edge of the web contains a source of 4 light, the optical system is; cocToninyio of 1: both e 5-7 and the beam of light 8, the sliders 9, a circuit for converting 10 wired signals into electrical signals with a Q Otoelectric element, a connector 11 of the amplification circuit 12-14 and a comparison circuit 15 and 16, the electrical circuit of the device includes cxe; vg i conversions, comparison and control of electric drive position 5 in m and a to about s about a d in ii ii to a ;. The gpeeobrazannaya circuit has a photo and has the following photoelectric signals: -lements: light-receiving diodes 17-19 and transistors 20-22 through a pulse, each of which passes a current of the collector in proporidio altogether quantity into light, m light-receiving diode Schems; the control loop 1; and the motorized position of the paper guide roller contains transistors 23 and 24 which control the windings of the relay 25 and 26. The winding of the relay 25, when energized, drives the drive, the position of the paper leading to the shaft, for the pair of dvm: - Huts1, Egos canvases; - and the winding of the relay 26 - to the left. The light emitted by the light source 4; is reduced by the optical system with the optical system 1 to the beam 8 near the lateral edge 2 of the movement of the canvas 1 "Reflected above :. from the beam 8 enters the optical fibers 9, the Reflected light beam is inputted from the light ;: 27-29 "The light inputted from the light output is converted into an electrical signal by the TrevoE 10 circuit, and the converted signals are fed to the infrared circuits, 1 11, Comparison Scheme 15 compares the output of gain circuit 12; In the case of an ayu sch and a and g nal, corresponding to light guide 27, with the output of the amplification circuit. 13, an amplifying electric signal, corresponding to the optical fiber 28, and the comparison circuit 16 compares the output of the amplification circuit 1.3 to the output of the amplification circuit-5. 14, the amplification of the electric signal corresponding to the optical fiber In the conversion circuit 10, the light-receiving diodes 17-19 and the transistor 20 -22 is located ..- on one print board. The diode 17 and the transistor 20 transform the light signal from the light guide 27f, the diode 18 and the transistor 21 - the signal from the light guide 28 and the diode 19 and the transistor 22 - the signal from the light guide 29, The collector voltage of the transistor 20 is accelerated by the gain circuit 12 and is entered in on. ckkitel -1st input terminal cxewoi of reference 15a and the voltage of the collector of the transistor 22 is amplified by the gain circuit 14 and input, 3 negative input for the first circuit are shown. Comparing 16 In addition to the Toi-Op, the collector voltage of transistor 21 is amplified by the gain circuit 13 and is introduced into the circuit composed of; 1 iod 30 and the resistor 31 and the voltage of the resistor 31 are inputted into the positive input terminal of the comparison circuit 16. At the same time, the voltage of the resistor 32 is inputted into the negative input terminal of the comparison circuit 15 s. The comparison circuit 15 adjusts the base current of the transistor 23 by comparing the input voltage level from the amplification circuit 12 with the input voltage level from the resistor 32, C1 the comparison circuit 16 adjusts the base current of the transistor 24 by comparing the input Hc1 voltage level from the amplification circuit 14 with the input voltage level from the resistor 31. In the case and the moving web is in the correct predetermined position in schemes: alignment: 15 and 16 the level of the input voltage inputted into the positive input terminal is set equal to the level of the input voltage inputted into the negative input terminal. The device works as follows. When the moving web 1 moves in the correct predetermined position (position I, P in FIG. 3), the difference between each input voltage level in comparison circuits 15 and 16 is zero. Accordingly, both transistors 23 and 24 are not supplied with base current and are disconnected. Therefore, no current is applied to the winding of the relay 25 and the winding of the relay 26 and the electric drive of the position of the paper guide roller 3 is not activated and the web is kept in a predetermined position. If the web is moved to the right of the predetermined position (position III, IV in FIG. 3), the brightness of the light entering it into the light guide 29 becomes larger. As a result, the collector current of the transistor 22 increases and the output voltage increases accordingly. The brightness of the light entering the light guides 27 and 28 remains at the same level. As a result, only the voltage at the negative input terminal of the comparison circuit 16 increases. At the same time, the transistor 24 is turned on and when the current is applied to the winding of the relay 26, the actuator of the roller 3 is actuated. At this time, the transistor 23 of the HO1 Itts is turned off and no current flows to the relay coil 25. Accordingly, the moving web of paper moves to the left, i.e. returns to the correct position. IF the web moves to the left of the desired position (the Y and YI positions in FIG. 3; the brightness of the light entering the light guide 27 decreases. As a result, the collector current of the transistor 20 decreases and the output voltage decreases accordingly. The brightness of the light entering the optical fibers 28 and 29, remains at the same level. As a result, the voltage of only the comparison circuit 15 at the positive input terminal decreases. At the same time, the transistor turns on when current is applied to the winding of the relay 25 actuates the roller position 3. Accordingly, the moving web moves to the right and returns to the correct position. The proposed device makes it possible to determine the brightness of three sections that are closely spaced from each other, which improves the accuracy of adjusting the position of the lateral edge of the web .. The claims for automatically adjusting the lateral edge of the paper web in a roll-up printing machine, which contains a photoelectric sensor with an optical system and a photocell and is electrically connected with it and between, the circuit itself is Transmitting the light signals into electrical circuits, comparing the signals from the sensor and the drive control circuit of the position of the paper conductor roller, characterized in that, in order to improve the control accuracy, the photoelectric sensors have three optical fibers, each of which is connected to a corresponding photocell, and the comparison circuit has two comparison units of the converted light signals, with the input of the first comparison unit connected to the outputs of the first and second photoelectric cells, and, the input of the second comparison unit oedinen with outputs of the first and third photocells. Sources of information taken into account in the examination 1. Passport of the device for automatic control of the position of the lateral edge of the Autotron paper web from Crosfied, England (prototype).
    one
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    同族专利:
    公开号 | 公开日
    JPS5385282A|1978-07-27|
    JPS5735481B2|1982-07-29|
    US4146797A|1979-03-27|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP15925176A|JPS5735481B2|1976-12-30|1976-12-30|
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