CN2768041Y - Blueprinting machine paper rolling and warning device - Google Patents

Abstract

The utility model relates to a blueprinting machine paper rolling and warning device, wherein a developing roller, a paper guide wheel, a paper output wheel, an upper scraping plate, a lower scraping plate and an upper cover plate are arranged in a blueprinting machine; the lower scraping plate is provided with a fiber optic probe which points to the developing roller through a connecting element. A circuit structure of the device is mainly composed of an optical sensor, a fiber optic probe, a reset button and a control circuit. The AC voltage of 220 V is stepped down to the AC voltage of 12 V through a transformer. Then, the transformer is connected with a rectifying diode, a capacitor, a voltage stabilizing block and a fuse and provides a DC power supply of 12 V for the optical sensor. The fiber optic probe is directly inserted into a signal input end of the optical sensor. An output power supply line of the optical sensor, an output line of a low level signal, a ground line, a control line and an anode of the DC power supply of 12 V are switched in a power supply line through the reset button. A photoelectric relay coil and a buzzer are connected between the power supply line and a signal output line. The utility model uses light reflection principle and the fiber optic probe to work through detecting strength of light which is reflected on a body surface. The device which is installed leads a blueprint paper to be taken off more convenient and enhances rate of fault handling.

Description

Blue-printing machine coil paper warning device

Technical field

The utility model relates to blue-printing machine, the coil paper warning device on particularly a kind of no-ammonia blue printing machine.

Background technology

The development principle of no-ammonia blue printing machine is: when normal blueprint, upper and lower scraper plate is pressed on the developer roll with certain pressure, make developer solution be attached to the developer roll surface with certain amount, when the drawing through exposer is sent between developer roll and the upper scraping plate, photographic layer chemical reaction on developer solution and the drawing shows blueprint, and the drawing after the development relies on developer roll upwards to continue paper feed, through being sent machine after paper output wheel and the paper guiding roll guiding, finish blueprint.This kind blueprint mode is commonly called " wet development ".

Though the moist degree of drawing can be adjusted by adjusting the pressure that upper and lower scraper plate is pressed on developer roll, it is moist that the heliographic paper after developing remains, and heliographic paper twists in and is difficult to sometimes on the developer roll take away.Present domestic no-ammonia blue printing machine ubiquity the problem that the heliographic paper difficulty is got behind the developer roll coil paper, and as shown in Figure 1, drawing can be bonded on the developer roll when coil paper, because during normal blueprint, the people cannot see the development part, also has little time reaction even if see; Fig. 2 is illustrated in that drawing can all be wrapped on the developer roll when coil paper took place, and this moment have to manually-operated, stops handling with machine is anxious.Because drawing all is wrapped on the developer roll, quite bothers when getting paper, handles bad paper foam and can damage developer roll, blocks the liquid medicine loop, influences development effect.

Summary of the invention

Task of the present utility model provides a kind of blue-printing machine coil paper warning device, and it has solved the problem that the heliographic paper difficulty is taken away behind the developer roll coil paper that existing no-ammonia blue printing machine exists.

The technical solution of the utility model is as follows:

A kind of blue-printing machine coil paper warning device is equipped with developer roll, paper guiding roll, paper output wheel, upper scraping plate, lower scraping plate and upper cover plate in blue-printing machine, by web member the fibre-optical probe that points to developer roll is housed on the described lower scraping plate;

The circuit structure of described coil paper warning device mainly is made up of optical sensor, fibre-optical probe, reset button, control circuit, the step-down behind transformer TC of AC220V voltage is AC12V, this transformer TC connects commutation diode D1～D4, capacitor C, regulator block M and fuse F, provides DC12V power supply to optical sensor;

Described fibre-optical probe directly inserts the photosensor signal input end, four lines of optical sensor output, be respectively power lead VCC, low level signal output line OUT, the control line CONTROL of ground wire GND and control output state, the DC12V positive source inserts power lead VCC through reset button SB3, photoswitch coil K41, hummer B is connected between power lead VCC and the output line OUT, wherein one group of normally opened contact of photoswitch K4 is connected between output line OUT and the control line CONTROL and is used for self-insurance, it is to stop to control main motor urgency between the scram button SB4 that another group normally opened contact of photoswitch K4 is connected between nodes X and the node Y, ground wire GND be connected to power cathode after control line CONTROL is connected.

Blue-printing machine coil paper warning device of the present utility model utilizes light reflection principle, and fibre-optical probe is installed on lower scraping plate, carries out work by the power of inspected object surface reflection.This device is installed, is made that to take the heliographic paper that is wrapped on the developer roll away more convenient in operation, saved the time, improved fault handling speed.

Description of drawings

Fig. 1 is that existing no-ammonia blue printing machine drawing when coil paper is bonded at the synoptic diagram on the developer roll.

Drawing all was wrapped in the synoptic diagram on the developer roll when Fig. 2 was the existing blue-printing machine generation coil paper of Fig. 1.

Fig. 3 is that a kind of blue-printing machine coil paper warning device of the present utility model is placed in the structural representation in the blue-printing machine.

Fig. 4 is that the blue-printing machine behind arrangement Fig. 3 coil paper warning device is got the paper synoptic diagram.

Fig. 5 is the control circuit figure of Fig. 3 coil paper warning device.

Embodiment

Referring to Fig. 3 and Fig. 4, the utility model is a kind of blue-printing machine coil paper warning device, developer roll 6, paper guiding roll 3, paper output wheel 4, upper scraping plate 8, lower scraping plate 1 and upper cover plate 7 are housed in blue-printing machine 10, on lower scraping plate 1, the fibre-optical probe 2 that points to developer roll 6 are installed by web member 9.Label 5 is a heliographic paper among Fig. 3 and Fig. 4, as shown in Figure 4, opens upper cover plate 7, and finger one is chosen, and can take out heliographic paper 5.

Referring to Fig. 5, the circuit structure of coil paper warning device mainly is made up of optical sensor 11, fibre-optical probe 12, reset button SB3, control circuit.The step-down behind transformer TC of AC220V voltage is AC12V, and this transformer TC connects commutation diode D1～D4, capacitor C1, C2, regulator block M and fuse F, provides DC12V power supply to optical sensor 11.

Fibre-optical probe 12 directly inserts optical sensor 11 signal input parts, and four lines of optical sensor 11 outputs are respectively the control line CONTROL of power lead VCC, low level signal output line OUT, ground wire GND and control output state.The DC12V positive source inserts power lead VCC through reset button SB3.Photoswitch coil K41, hummer B are connected between power lead VCC and the output line OUT.Wherein one group of normally opened contact of photoswitch K4 is connected between output line OUT and the control line CONTROL and is used for self-insurance, and it is that main motor is anxious to stop to control between the scram button SB4 that another group normally opened contact of photoswitch K4 is connected between nodes X and the node Y.Ground wire GND be connected to power cathode after control line CONTROL is connected.

The circuit working process of this coil paper warning device is as follows:

The step-down behind transformer TC of AC220V voltage is AC12V, and this voltage provides DC12V power supply through overcurrent fuse F to optical sensor 11 after commutation diode D1～D4 rectification, capacitor C1 filtering, regulator block M voltage stabilizing.

Fibre-optical probe 12 directly inserts optical sensor 11 signal input parts, four lines of optical sensor 11 outputs, be respectively brown power lead VCC, black signal output line OUT, blue ground wire GND and white control line CONTROL, control line CONTROL is used to control output state.When optical sensor 11 received signals, output line OUT output low level signal.

When coil paper takes place when, produce strong reflection light, optical sensor sends control signal, the photoswitch coil gets electric, photoswitch normally opened contact closure, this moment buzzer warning, anxious stop that pilot lamp is bright, the relay normally closed contact disconnects, main motor is anxious to stop, and developer roll stops operating.

The utility model utilizes the red light beam of optical sensor emission, impinge upon on the developer roll because the developer roll surface is kermesinus or black, the normal condition reflected light a little less than.When coil paper took place, because the developer roll surface is pasted by heliographic paper, this moment, the developer roll surface was a white, after reflective light intensity, optical sensor receive strong reflection light, exported control signal immediately, and main motor is suddenly stopped, and the response time was less than 0.05 second.

After handling coil paper, press reset button SB3 earlier, optical inductor and photoswitch coil, hummer outage, hummer stops to report to the police, and the photoswitch normally opened contact disconnects, and main motor gets electric, and mechanical recovery runs well.Press reset button SB3 again, open the coil paper warning function.

Claims (1)

1. a blue-printing machine coil paper warning device is equipped with developer roll, paper guiding roll, paper output wheel, upper scraping plate, lower scraping plate and upper cover plate in blue-printing machine, it is characterized in that, by web member the fibre-optical probe that points to developer roll is housed on the described lower scraping plate;

The circuit structure of described coil paper warning device mainly is made up of optical sensor, fibre-optical probe, reset button, control circuit, the step-down behind transformer TC of AC220V voltage is AC12V, this transformer TC connects commutation diode D1～D4, capacitor C, regulator block M and fuse F, provides DC12V power supply to optical sensor;

Described fibre-optical probe directly inserts the photosensor signal input end, four lines of optical sensor output, be respectively power lead VCC, low level signal output line OUT, the control line CONTROL of ground wire GND and control output state, the DC12V positive source inserts power lead VCC through reset button SB3, photoswitch coil K41, hummer B is connected between power lead VCC and the output line OUT, wherein one group of normally opened contact of photoswitch K4 is connected between output line OUT and the control line CONTROL and is used for self-insurance, it is to stop to control main motor urgency between the scram button SB4 that another group normally opened contact of photoswitch K4 is connected between nodes X and the node Y, ground wire GND be connected to power cathode after control line CONTROL is connected.

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