Eliminate the equipment of static in the cigarette package production and eliminate electrostatic methods
Technical field
The present invention relates to the Apparatus and method for that a kind of static is eliminated, relate in particular to a kind of Apparatus and method for of eliminating the static that used tracing paper material produces on the tobacco business wrapping machine in course of conveying.
Background technology
The generation of static is a very complicated process, and it is relevant with several factors.When two kinds of different solids contacts, its spacing reaches or less than 25 * 10
-8During cm, on contact interface, will produce electronics and shift, lose the positively charged of electronics, obtain the electronegative of electronics, promptly produce static.The size that produces electrostatic potential depends on two physical property and the chemical property of friction object mutually, and the quantity of the relative humidity of site, resistance coefficient, object, flow and time of friction and speed etc., also be to be difficult to eliminate the condition that produces static in theory.The a large amount of plastic, transparent paper material of using of tobacco business wrapping machine are very easy to produce static, if can not in time eliminate, cause easily and transmit not in place, clogged with material adhesion, finally cause packaging external appearance off quality, even equipment can't ordinary production.Electric stress and polarity that kinds of materials produces under the varying environment condition have nothing in common with each other, and in actual production, some mechanism of equipment is relatively more responsive to the static of tracing paper material, adaptive capacity is little.The method of the solution static that present cigarette industry is generally taked is in utilizing and the method for electric charge, reduces the accumulation of static, and the device of selecting for use is an X eliminator.Specific practice is at the transfer passage of tracing paper terminal needle shaped discharging rod to be installed, and its source is connected to the mouth of high pressure generator.Adopt this mode to eliminate the static weak point to be:
1. there is zero crossing in the sinusoidal waveform of discharging rod tip voltage waveform for exchanging.At the zero position elimination static that can't neutralize.
2. can not be according to the electric stress automatically regulating voltage height of tracing paper material, bad adaptability.
3. can not judge the static polarity of tracing paper material.
4. it is improper to regulate, and discharging rod may puncture destruction to the transparent-paper package material production.
5. during the interlock protection fault, there is possibility to the operating personal personal injury.
Summary of the invention
The objective of the invention is that to eliminate effect bad in order to solve in the present tobacco business static on the transparent-paper package material, in can't be in eliminating electrostatic process automatically according to the electric stress adjustment and the electric charge generating capacity have zero crossing, and fragile tracing paper, to the adventurous problem of operating personal, a kind of equipment that adopts detection and feedback form is provided, during it can be controlled and the polarity and the intensity of electric charge, and by with ionization air be transported to the tracing paper surface and go to eliminate the equipment of static and the method for eliminating static, have simple in structure, easy to use, safe and reliable, static is eliminated advantages such as effective.
For achieving the above object, the present invention has adopted following technical scheme: the equipment of eliminating static in a kind of cigarette package production, it comprises the electrostatic generator that is installed on the belt conveyor, it is characterized in that: on the forward and backward belt conveyor in electrostatic generator installation site, static detector I and static detector II are installed respectively, two static detectors are connected with electrostatic generator, form to detect and backfeed loop.
Described electrostatic generator is an ion wind type static sent out device, and it is made up of control circuit, corona discharger and fan, and wherein control circuit is connected with two static detectors.
The model of described static detector I and static detector II is HAKKO430; Described electrostatic generator model is SJ-F020.
Eliminate the method for static in a kind of cigarette package production, it is characterized in that:
A. the tracing paper material is through the belt conveyor ahead running, by static detector I, by this static detector I on the tracing paper material with static charge polarity detect, and the result is changed into corresponding signal;
B. after the control circuit in the electrostatic generator receives the signal of static detector I, according to testing result, the opposite polarity electron ion of electrostatic charge on generation of control corona unit and the tracing paper material;
C. control circuit control fan with ionization charged air blow to the tracing paper material, in and on the tracing paper material with electrostatic charge;
D. static detector II detects the tracing paper material by electrostatic generator once more, to judge whether electric residue is arranged on it, and the result fed back to the control circuit of electrostatic generator, the electric charge of regulating ion wind by control circuit carries intensity, thereby guarantees that static eliminates effect.
The present invention has formed a static abatement apparatus with detection and backfeed loop with two static detectors and an ion wind type electrostatic generator.Two static detectors are installed in forward and backward the locating of static sent out device respectively and send and be with.When the tracing paper material when belt conveyor ships, static detector will detect the polarity and the voltage thereof of electrostatic charge, the electric signal of testing result is sent into the control circuit of electrostatic generator, control the electric charge of institute's static electrification opposite polarity on corona unit generation and the tracing paper according to the result who detects by control circuit, and the surface of the tracing paper that electric charge is blown into the form of ion wind by fan, thereby neutralize.Tracing paper after the neutralization continues to move ahead through second static detector through belt conveyor, this detector will detect whether also having electric residue on the tracing paper material after the neutralization, if any then with the control circuit of signal back electrostatic generator, make its generating capacity and fan air flow of adjusting static charge, so that strengthen neutralizing effect.Advantage of the present invention is: static charge polarity and intensity detection loop and backfeed loop be added in the static and the time do not have a zero crossing, in and the polarity and the intensity scalable of electric charge; Employing send the mode of blowing to send electron ion, the injury of having avoided high-tension apparatus may cause operating personal; Whole device simple in structure, using method is easy, easy operating, electrostatic efficiency is good, is enough to satisfy the requirement of eliminating tracing paper material institute static electrification in the tobacco business.
Description of drawings
Fig. 1 is a device structure scheme drawing of the present invention.
Wherein, 1. belt conveyor, 2A. static detector I, 2B static detector II, 3. electrostatic generator, 4. ion fan, 5. transmission shaft, 6. tracing paper material.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Belt conveyor 1 moved under transmission shaft 5 acts among Fig. 1, tracing paper material 6 movement therewith on it.When it arrives static detector I2A, this static detector will on the tracing paper material with static charge detect, and in the control circuit of the electrostatic generator 3 that detected static charge polarity is become electric signal to send into intensity-conversion to be attached thereto, control circuit will according to its corona discharger of signal control produce opposite polarity in and electric charge, and under the effect of fan 4 form of electric charge with ion wind is being blown on the tracing paper material, static on it is neutralized, static detector II2B detects the tracing paper material more then, as electric residue is arranged on it, then convert this result to control circuit that electric signal is sent into electrostatic generator 3, by its control corona discharger and fan, in the adjustment and electric charge.The model of static detector I2A and static detector II2B is the HAKKO430 type of Japanese HAKKO company; The model of electrostatic generator 3 is the SJ-F020 type of Japanese KEYENCE company.
The method of elimination static of the present invention is:
A. tracing paper material 6 is through belt conveyor 1 ahead running, by static detector I2A, by this static detector I2A on the tracing paper material 6 with static charge polarity detect, and the result is changed into corresponding signal;
B. after the control circuit in the electrostatic generator 3 receives the signal of static detector I2A, according to testing result, the opposite polarity electron ion of electrostatic charge on generation of control corona unit and the tracing paper material 6;
C. control circuit control fan 4 with ionization charged air blow to tracing paper material 6, in and on the tracing paper material 6 with electrostatic charge;
D. static detector II2B detects the tracing paper material 6 by electrostatic generator 3 once more, to judge whether electric residue is arranged on it, and the result fed back to the control circuit of electrostatic generator 3, the electric charge of regulating ion wind by control circuit carries intensity, thereby guarantees that static eliminates effect.