The solenoid is not energized, the reasons for this failure is mostly within the host fault, the solenoid coil blown, circuit interruption to various reasons,
The solution: First check the inside or outside of the host is out of the question; secondly View solenoid fuse to see if there is an electromagnet powered signs, rule out mechanical jamming, detection of the internal power supply under all normal circumstances; in weighing packaging machines frequently encountered is the cause of this failure is: sensor damage, for the bridge voltage fault, line connection or interrupted incorrectly.
Exclusion method: sensor and connection or host load signal for detecting near the bridge and amplifier circuit or computer output display circuit, system stability sometimes appear caused by bad bagged amount of instability can be tempted to solve this problem whether the fault line, or remove the host, the clear signal is applied through an internal short circuit, determine the fault is located inside the machine or from the switch, and then solve the problem.
Empty packaging machine maintenance and repair
1, vacuum packaging machine should be at a temperature of -10 ℃ -50 ℃, relative humidity less than 85%, non-corrosive gases in the ambient air, no dust, no explosive hazardous environments. Like strapping and shrinking machine, the present vacuum packaging machine is a three-phase 380V power supply.
2, vacuum packaging machine to ensure normal operation of the vacuum pump, vacuum pump motor does not allow reverse. You should always check Camellia Yesan Wei transparent film packaging machine
Level, the normal oil level is 1 / 2-3 / 4 of the oil window (not over), when there is moisture or oil pump color black, the time should be replaced with new oil (generally replaced every one to two months of continuous work with a vacuum # 30 # gasoline or petrol, oil may be).
3, the impurity filter should always washable (usually 1-2 months cleaning time, such as packaging debris-like objects should shorten cleaning time).
4, 2-3 months of continuous work should open the back cover 30 pairs of sliding parts and lubricating the lifter switch, connected to each of the activities on the heating rods should be considered the use of lubrication.
5, vacuum filtration, oil mist FRL 24 should always check to make sure there is oil (sewing machine oil) in the oil mist, oil cup, the filter cup of water.
6, heated bars, to keep clean the silicone can not stick a foreign body, so as not to affect the sealing quality.
7, the heating rods, heating plate under the floor sticky paste for insulation effect, when damaged should be replaced to avoid short circuit.
8, user-owned working air supply and inflation gas source, the vacuum packaging machine working pressure is set to 0.3MPa, more appropriate, no special circumstances do not regulate too much.
9, vacuum packing machines are not allowed in the handling process and the impact tilted, not tipped handling.
10, vacuum packaging machine at installation must have a reliable grounding device.
11, is strictly prohibited under the hand into the heating rods, prevent injuries, immediately cut off the power in case of emergency.
12, after the first ventilation work energized, after the first power failure shutdown breathe.