Common faults and troubleshooting methods of ZP35B tablet press 1. Exclusion method of electrical fault indicators 1. HL2, HL3 or so overpressure fault indication When the tableting force exceeds the set pressure, the indicator light HL2.HL3 lights up, then Check the granules, whether the thickness and weight of the tablets are normal, whether the tableting force setting is reasonable, and then adjust accordingly to eliminate the malfunction.
2. Loading and unloading rail fault indication When the fault indicator HL5 light is on, it can be checked whether the undercut loading and unloading rail side door is missing or improperly installed, and then reinstalled in place to eliminate the fault.
3. Motor fault indication Once the motor is running abnormally, the indicator light HL4 lights up. The inverter stops working and displays the fault type and the operating parameters of the faulty inverter. At this time, according to the fault reason of the inverter, it can be processed accordingly, and then restart the motor.
4. Emergency stop indication Press the stop button, the indicator light HL3 lights up, and the machine stops working. Turn the stop button to the right to reset.
Second, the upper and lower pressure wheel axial turbulence failure 1, the bearing wear in the pressure wheel causes axial turbulence, then the bearing should be stopped.
2. After being pressed, the round nut of the shaft end of the pressure roller shaft is loosened, resulting in axial turbulence. Then tighten the round nut and lock the push washer.
Third, the upper rail guide wear 1, oil breakage is caused by wear, resulting in rail wear. If the surface of the guide rail is slightly damaged, the 35 degree C slope should be repaired in time, and the damage should be replaced.
2, too much dust, resulting in slamming, sticking, resulting in upper rail guide wear, you should improve the powder processing technology to ensure that the powder content of the powder (100 mesh or more) does not exceed 10%.
3. The quality of the lubricating oil is not good. Lubrication between the rail guide and the ram can only be selected for oil lubrication. N32 gear oil or air compressor oil can be used. Each shift should be painted with no less than two times. It should not be too much to prevent powder contamination.
Fourth, the difference in weight of the sheet 1, the axial movement of the lifting rod, causing inaccurate measurement, resulting in a difference in weight. The upper part of the small worm gear should be inspected, and if the thread of the lifting rod is worn, the worn parts should be replaced.
2. The bottom of the feeder is worn or incorrectly installed. The bottom of the feeder should be replaced if it is worn. If it is not properly installed, it should be re-adjusted.
3. Die problem. Check the total length of the upper and lower punches, the depth of the sheet, if it is out of tolerance, stop using it.
5. The machine has too much powder leakage. 1. The gap between the feeder, the scraper and the turntable is too large. Use the knife-edge to check whether the bottom of the feeder and the scraper are straight. At the same time, check the feeder and the working surface of the turntable with a feeler gauge. The gap between the two should be between 1.10-0.15mm, and the bottom surface of the scraping board should be level with the working surface of the turntable and compacted.
2. Check if the middle mold is higher than the working surface of the turntable, and if it should be leveled.
3. Check the runout of the working surface of the turntable, which should be less than 0.05mm.
Sixth, the film at the exit and the failure of the sheet. 1. Check that the end of the punch is higher than the working surface of the turntable. Generally, it should be controlled between 0.15-0.2mm.
2. Use a feeler gauge to check the gap between the blade and the working surface of the turntable, which should be controlled between 0.2-0.3mm.
3. Check if there is sticking or excessive resistance.
4. Check whether there are burrs on the punch type and the middle die orifice, or knock on the hair, and repair, polish or replace it in time.
5. The main cause of the accumulation is the large diameter and the speed of the car. The speed should be reduced. At the same time, check whether the end face of the scraping board is higher than the feeder slot or the joint is not smooth, and should be corrected.
7. Excessive fine powder on the lower punching surface 1. Check the matching clearance between the lower punch and the middle die hole. If there is wear, it should be replaced in time.
2. If the content of fine powder is too much, the particle size of the powder should be changed, and the content of fine powder (above 100 mesh) should not exceed 10%.
3. Check the working condition of the vacuum cleaner.
8. Machine vibration 1. The machine is not leveled or the suspension pad compression nut is loose. Reinstall the shock pad and calibrate the machine level and tighten the compression nut.
2. The copper sleeve of the upper and lower pressure wheel frame joints are worn and can be changed. If it slides out, you can add a drill and change the riding screw.
3. If the machine speed is wrong, reduce or increase the speed to avoid the resonance area generated by the inverter.
4, particle problem, check the uniformity of particle size, particle composition, improve the tableting process.
2. Loading and unloading rail fault indication When the fault indicator HL5 light is on, it can be checked whether the undercut loading and unloading rail side door is missing or improperly installed, and then reinstalled in place to eliminate the fault.
3. Motor fault indication Once the motor is running abnormally, the indicator light HL4 lights up. The inverter stops working and displays the fault type and the operating parameters of the faulty inverter. At this time, according to the fault reason of the inverter, it can be processed accordingly, and then restart the motor.
4. Emergency stop indication Press the stop button, the indicator light HL3 lights up, and the machine stops working. Turn the stop button to the right to reset.
Second, the upper and lower pressure wheel axial turbulence failure 1, the bearing wear in the pressure wheel causes axial turbulence, then the bearing should be stopped.
2. After being pressed, the round nut of the shaft end of the pressure roller shaft is loosened, resulting in axial turbulence. Then tighten the round nut and lock the push washer.
Third, the upper rail guide wear 1, oil breakage is caused by wear, resulting in rail wear. If the surface of the guide rail is slightly damaged, the 35 degree C slope should be repaired in time, and the damage should be replaced.
2, too much dust, resulting in slamming, sticking, resulting in upper rail guide wear, you should improve the powder processing technology to ensure that the powder content of the powder (100 mesh or more) does not exceed 10%.
3. The quality of the lubricating oil is not good. Lubrication between the rail guide and the ram can only be selected for oil lubrication. N32 gear oil or air compressor oil can be used. Each shift should be painted with no less than two times. It should not be too much to prevent powder contamination.
Fourth, the difference in weight of the sheet 1, the axial movement of the lifting rod, causing inaccurate measurement, resulting in a difference in weight. The upper part of the small worm gear should be inspected, and if the thread of the lifting rod is worn, the worn parts should be replaced.
2. The bottom of the feeder is worn or incorrectly installed. The bottom of the feeder should be replaced if it is worn. If it is not properly installed, it should be re-adjusted.
3. Die problem. Check the total length of the upper and lower punches, the depth of the sheet, if it is out of tolerance, stop using it.
5. The machine has too much powder leakage. 1. The gap between the feeder, the scraper and the turntable is too large. Use the knife-edge to check whether the bottom of the feeder and the scraper are straight. At the same time, check the feeder and the working surface of the turntable with a feeler gauge. The gap between the two should be between 1.10-0.15mm, and the bottom surface of the scraping board should be level with the working surface of the turntable and compacted.
2. Check if the middle mold is higher than the working surface of the turntable, and if it should be leveled.
3. Check the runout of the working surface of the turntable, which should be less than 0.05mm.
Sixth, the film at the exit and the failure of the sheet. 1. Check that the end of the punch is higher than the working surface of the turntable. Generally, it should be controlled between 0.15-0.2mm.
2. Use a feeler gauge to check the gap between the blade and the working surface of the turntable, which should be controlled between 0.2-0.3mm.
3. Check if there is sticking or excessive resistance.
4. Check whether there are burrs on the punch type and the middle die orifice, or knock on the hair, and repair, polish or replace it in time.
5. The main cause of the accumulation is the large diameter and the speed of the car. The speed should be reduced. At the same time, check whether the end face of the scraping board is higher than the feeder slot or the joint is not smooth, and should be corrected.
7. Excessive fine powder on the lower punching surface 1. Check the matching clearance between the lower punch and the middle die hole. If there is wear, it should be replaced in time.
2. If the content of fine powder is too much, the particle size of the powder should be changed, and the content of fine powder (above 100 mesh) should not exceed 10%.
3. Check the working condition of the vacuum cleaner.
8. Machine vibration 1. The machine is not leveled or the suspension pad compression nut is loose. Reinstall the shock pad and calibrate the machine level and tighten the compression nut.
2. The copper sleeve of the upper and lower pressure wheel frame joints are worn and can be changed. If it slides out, you can add a drill and change the riding screw.
3. If the machine speed is wrong, reduce or increase the speed to avoid the resonance area generated by the inverter.
4, particle problem, check the uniformity of particle size, particle composition, improve the tableting process.
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