picture of screen covering mc

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Ngày đăng: 26/03/2020, 11:43

Coating purposes: The secondary machine is designed for the flat screen covering needs of the nondeformable substrate., Its coating process, print head, sliding frame, control drive and other key institutions, Adopt imported components, the performance of the whole machine is stable and reliable, and the speed can be adjusted independently.。 This machine is equipped with vacuum suction and automatic off-grid, especially suitable for coating Thin film, nameplate, circuit board and paperboard Technical parameter MODEL Table area(mm) Coating area(mm) Frame outer diameter (mm) speed (time / hour) Air source pressure(kg/cm ²) Power 380V WEIGHT KG Dimensions mm) L W H HS6090A 740X1000 600X850 900X1250 1000 ≥5 Three-phase four-wire 2.5KW 500 1200 1500 1650 10 Working conditions of flatbed presses 1, the ambient light should not exceed 3000Lx 2, the surrounding medium temperature is not higher than +40 ° C and not lower than -20 ° C 3, the relative humidity of the air is not more than 85% (the medium temperature is 20 + ° C) 4, where there is no conductive dust 5, no explosion hazard environment 6, does not contain gases and vapor flow environment that can corrode metals and insulation 7, three-phase four-wire 380V.50Hz.3KW power and 5-7kg/cm, 200L/min compression Place of supply of air source Machine installation and connection After unpacking, check whether there is any damage outside the machine, and List of accessories "Check if the items are complete If any damage is found and accessories are found If you have lost or not ready, you should contact the local business office or call the company immediately.。 2, power connection: Note: Before operating this machine, check the power line voltage, it must be used with the machine The line power supply voltage is the same, otherwise the machine may be seriously damaged and the rotation direction is twice Change the above point to the most stable andcorrect direction Electrical control system The basic working principle of electrical and pneumatic components used by our factory A, electrical operation panel (above) 1, power supply: usually the domestic power supply voltage is three-phase power, the voltage of each phase is 380V, the power supply has a call 1, the power switch: turn on the control loop power supply Zero line, the machine of our factory must be connected to the zero line, the voltage of the three-phase power to a pair of zero line is 220V, 2, suction switch: start platform suction motor This user's zero line must go with the three-phase power, (that is, together with the same leakage switch), can not When adjusting the overprint alignment, long suction can fix the workpiece and then resume coating Pull a zero line 4, coating - down button This button is used when adjusting the installation screen manual, only the coating lever arm 2, gas source: the air pressure of the general air compressor is 5kg/cm2-8kg/cm2 (also expressed by MP), Up and down action The greater the air pressure applied to the cylinder, the greater the output, the instability of such equipment, so the equipment is self-contained 5, work is completed by pressing the plate change button to enhance the print head, easy to remove the screen A voltage regulator is provided, which is stable at 5kg/cm2 When the machine is adjusted, the user's air source must be checked at 5kg/cm2 or above At the beginning of the work, the test blade prints the pressure and then resumes the coating state Not enough air compressor automatic switch is adjusted to 5kg/cm2-8kg/cm2 7, coating mode setting button: set coating back to ink stop, post-press stop operation mode 3, electrical components 8, counting the key A Contactor: After the power is applied to the coil, the motor is turned on and the motor is turned on 9, press the automatic and 11 to start automatic coating B Air switch and thermal relay: serially connected to the electrical circuit, when the electrical appliance is overloaded, it is automatically disconnected 10 Count clear button, the count is reset and the count value is cleared every time the power is turned on power supply 11, automatic timing setting button, used to set the automatic working mode after a cycle cycle C regulated power supply: connected with a phase line and a neutral line (ie 220v) output DC 24v, supply master The machine returns to the origin stop time Plate, proximity switch, solenoid valve, clutch brake 13.14 Jog during the adjustment work can move the scraper left and right D Proximity switch (inductive switch): Generally four per machine, respectively detecting the stop position of the machine (on Pneumatic control system Left and right four-point position), supply the main board position signal A Pneumatic control operation diagram (below) E Main control circuit board: It has programmed the internal motion program, people control its buttons, foot switch, 17 The print head raises the speed limiter 20 coating knife down speed limiter Safety switch, and accept the signal from the sensor switch, then it outputs the action signal, respectively control 18 Print head lowering speed limiter 21 Ink knife lift speed limit valve Inverter (drive left and right coating), pneumatic solenoid valve (drive cylinder action), clutch brake 19 Print knife lift speed limit valve 22 Rewinding knife lowering speed limit valve (Drive the reducer up and down) to complete all actions F Inverter: The inverter accepts the on-off signal output voltage from the main control board, and the frequency of the voltage (frequency The rate determines the instantaneous speed of the motor) to the coating speed of the left and right coating motor to meet the user's requirements G Clutch brake: The force of the motor is transmitted to the reducer, and there is a clutch in the middle When the clutch is energized to drive the reducer to move, the purpose of the machine is raised and lowered The brake is wired in the same way as the clutch When the clutch is dead, the brake is energized and the output shaft is held so that it does not rotate When the power is turned on, the brakes are not energized, allowing the reducer to rotate smoothly H Pneumatic solenoid valve and cylinder: The cylinder has two inlets, which control the output of the shaft according to the inlet direction of the airflow There are five ports of electricity, one of which is the air source inlet, and the other two are connected to the two ports of the cylinder to supply the cylinder air pressure When the solenoid valve is not energized, it supplies one direction of airflow, and when it is energized, it is supplied to the other direction Airflow, (not possible for both ports to supply gas at the same time), the other two nozzles are exhaust gas outlets, which are connected to the muffler and then to the atmosphere, and the used gas of the cylinders is exhausted Remove the ink remaining on the screen and then wash the remaining ink on the screen with the washing water B Input of compressed air: (The bottom and side of the screen are cleaned until the pattern on the screen is fully displayed Use 10mmX6mm from the gas supply Stop), use light force when washing (especially at the bottom of the film), so as not to damage the pattern, the thick PV tube puts the gas source of 6-8KG/cm2, After washing, it is best to dry the screen with a hairdryer (not hot air) Connected to the quick connector of the triple stop valve in the middle of coating If you need to stop, you should also follow the above procedure C Pressure regulator and gas meter use Long-term shutdown to remove the screen, or completely cover to prevent dust from attaching to the wire 1, the pressure regulator will set the pressure loop Online, affecting the next assignment Pull up, increase clock pressure from top to bottom The list of the whole machine is reduced, and the adjustment is completed, the pressure is pushed down 1, one host (excluding air compressor) At this time, the working pressure will be stable 2, scraper, two sets of ink return knives (excluding scraping glue), but this pressure value can only be lower than the air pressure source 3, a set of commonly used toolbox (including the active wrench Hexagon wrench set a pressure of 12-14 14-17 (If the input gas source is lower than the set gas 17-19 Durable One-word screwdriver Phillips screwdriver Rubber pliers Each one above) Pressure adjustment, easy to damage the regulator) 4, a manual, 2, barometer: indicating the adjustment of the air pressure value, Fifteen Electrical circuit diagram and minor troubleshooting 3, air filter Troubleshooting Remove impurities and condensate from compressed air Condensation will be located at the bottom of the filter when cleared Symptom Cause Remedy Symptom Cause Remedy Symptom Cause Remedy After turning on the main power After turning on the main power After turning on the main power The main motor does not turn The main motor does not turn The main motor does not turn The water drain column is pushed up and the accumulated water will drain downward Note: the water stored in the filter bowl should not be higher than the black plastic sheet at the bottom of the filter (compressed air) It is best to dry first) 4, oil atomizer lubricator: supply lubricant to the pneumatic equipment, first turn off the air source to unscrew the plug, Fill 20# oil or white mineral oil from the oil filling hole, and add 1/2 or 1/3 of the oil storage cup between Then adjust the lubricant supply and rotate clockwise from the top to reduce the supply The amount of oil, and vice versa The general adjustment standard is to first completely close the throttle and rotate it 90 degrees to 180 degrees counterclockwise Preparation before starting up 1, the coating and returning ink knife installation, adjust the blade angle according to the process requirements 2, according to the size of the desired printed pattern, make a perfect screen coating screen Adjustment of coating scraping pressure: Adjust the viscosity of the ink used In order to make the coating scrape have certain elasticity during coating, the pressure is generally 2-4KG/cm2 4, according to the actual needs of the substrate, equipped with an easy to put and not easy to print the longer the pressure is relatively large Walk for the fixture 10, ink scraper pressure adjustment: the adjustment method is the same as above 5, prepare a proper amount of washing net water and white cloth for washing the screen and the substrate 6, input compressed air (4-6KG / cm2) (attention) safety rules and maintenance Startup procedure and adjustment Do not start the machine without knowing the order of operation of the machine Connect the power supply Be sure to connect the power supply to the nominal voltage value (±10%) of the machine 2, open the gas source shut-off valve 3, connect the gas source and make the air pressure to the specified requirements, so that the air pressure control loop is restored to the beginning Turn the power main switch to the "on" state and then turn on the power switch Check the air pressure display of the air pressure gauge and pull up the control valve If the machine is running, if you want to return to the original position quickly, press the emergency stop Adjust the air pressure by 4-5KG/cm2, then press the pressure regulator to fix the air pressure 5, when the lift or foot switch, the start/stop button fails, not start the device Value Do not modify or remove any safety equipment 5, the adjustment of the coating stroke: 7, the equipment should be cut off immediately if abnormal conditions are found during commissioning or use Adjust the proximity switch position (left stroke and right 8, all parts should be wiped clean frequently to prevent rust and scale The stroke can change the distance of the coating stroke 9, daily maintenance points: 6, adjust the appropriate off-network position: (ie, the screen and the A, timely elimination of water in the filter bowl The space for coating is generally 1-2 mm) B, keep the correct drip full frequency, and replenish the oil in time Adjustment of the position of the screen and the coating part: C Replace the lubricating oil of the oil pressure lifting device once every six months Loosen the clamping screws of the lifting platform, and then use D to ensure the cleaning and lubrication of all the sliding rails and sliding shaft Move the handwheel up and down to the desired position E, the lifting shaft must be refueled once a day, otherwise the lifting motor will burn out 8, the adjustment of the coating scraper: use the fine adjustment knob A and B Adjust the parallel of the coating scraper and the ink returning knife so that the last coating is stopped, and the coating is changed after coating Use the restricted flow mouth to adjust the speed of the upper and lower scraping, turn off the power and compressed air In order to avoid too much impact to produce vibration remove the residual ink stains of the machine 9, height adjustment (can be regarded as coating pressure depth) ... output of the shaft according to the inlet direction of the airflow There are five ports of electricity, one of which is the air source inlet, and the other two are connected to the two ports of. .. gas of the cylinders is exhausted Remove the ink remaining on the screen and then wash the remaining ink on the screen with the washing water B Input of compressed air: (The bottom and side of. .. requirements 2, according to the size of the desired printed pattern, make a perfect screen coating screen Adjustment of coating scraping pressure: Adjust the viscosity of the ink used In order to make
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