CN87107209A - The Weight control of cigarette machine - Google Patents

Abstract

The present invention is the clipper position control of cigarette machine, comprising: the hydraulic pressure amplifying unit, and it has an energy to move in one section predetermined small distance and can provide the input block of a less power; Output block, these parts are owing to the result of hydraulic pressure can more obviously move with bigger masterpiece in response to the motion of input block; Air chamber, it and tobacco stream are close to, and inside has one to depend on the negative pressure that is added in the air pressure on the tobacco stream; Electric transducer, it be contained in with exposing to the open air above-mentioned chamber in negative pressure in, and send a signal of telecommunication thus, be used to amplify the amplifier of this signal of telecommunication, malleation moves spiral piping arrangement, is added with above-mentionedly through amplifying signal on this device, and drives input block in response to this signal.

Description

Cigarette machine generally all has a clipper, is used to cut the part of the tobacco stream that forms when a chimney-like Guan Xiangyi negative pressure band injects tobacco in a large number.Tobacco stream after cutting is formed a continuous cigarette rod by a continuous coated papers institute winding.Then, this cigarette rod cigarette of being cut into separation props up.

In order to control the amount of tobacco that enters the cigarette rod, clipper to the distance of negative pressure band under normal circumstances is continuous controls.In Mo Lisi mark 8 types and Mo Lisi mark 9 type cigarette machines, clipper control has two Position Control inputs, and fast response control input that this just obtains from the air pressure signal of clipper upstream and the reflection that the core verifying attachment of unit weight obtains from monitor continuous cigarette rod manufactured goods should be controlled input.Core verifying attachment reaction is very fast, can detect the vacancy of cigarette in propping up, and if necessary, can also start an ejector apparatus and release defective cigarette and prop up.But the signal of core checkout gear output under normal circumstances is transferred to clipper by a motor, and has a control circuit to provide reaction slower average effect.

The present invention relates to the improvement of the control section of the clipper that drives by the air pressure signal of its upstream, up to the present air pressure signal all is to obtain the chamber (being commonly referred to " air chamber ") adjacent with the negative pressure band between stovepipe and clipper in mark 8 and mark's 9 type machines, but this air chamber is arranged in all generally that tobacco stream above the chimney has almost formed but be not completed into one zone of upstream more.

Our No. 3089497 United States Patent (USP) described the principle of air chamber and its a kind of early stage particular form.Whole specifications of that patent can be used as list of references of the present invention, the particularly following fact has more reference role: air pressure signal sends a bellows to or cries bellows, (in the patent specification accompanying drawing, being drawn as a string leather bag 757), this bellows is according to the input negative pressure breathing that is changing wherein, thereby move a bar 77, bar 77 is drive rod 80 more conversely, makes bar 80 form an input and transports to a hydraulic pressure amplifying unit.This unit produces a bigger motion, passes to bar 51 thereby produce a bigger masterpiece for the clipper Position Control input according to air pressure.The present invention just relate to provide this input through improved device.

According to the present invention, the clipper position control in the cigarette machine comprises: the hydraulic pressure amplifying unit, and it has a movable input block that also can provide a less power in one section predetermined small distance; One because of the cause of the hydraulic pressure output block according to the motion campaign of above-mentioned input block, and this output block can be done more obviously motion with bigger power; An air chamber contiguous with pipe tobacco has one and depends on the negative pressure that is added in the air pressure on the tobacco stream in this air chamber; In negative pressure that is installed in the above-mentioned chamber and send the electric transducer of a signal of telecommunication thus with exposing to the open air; An amplifier that is used to amplify above-said current signal; Be added with above-mentioned through amplifying signal and a malleation that is used for driving in view of the above input block move spiral piping arrangement.

Used the main distinction according between the clipper control mode of air pressure for many years to be in the present invention and the above-mentioned Mo Lisi type machine of mentioning: a malleation that drives according to sensor moves spiral piping arrangement and has replaced bellows, and the amplitude strictness of " malleation moves spiral piping arrangement " this term amplitude of being used to refer to a kind of motion (also being the input of hydraulic pressure unit) that can make its output block specially and the input signal of telecommunication wherein here is relevant and can get back to the spiral piping arrangement of mid point automatically.For above-mentioned purpose, above-mentioned spiral piping arrangement is preferably on the flexible sheet that separates on two axis and loads onto an armature, like this, armature will be got back on the precalculated position (can comprise solenoidal output block on the armature or link with this output block) when the no signal of telecommunication is input to solenoid.We have found a kind of this destination device that is suitable for, i.e. Britain's Ge Lin ﹠amp; Fertile gloomy (electronics) (Gearing ﹠amp of Co., Ltd; Watson Electronic Limited, the England) spiral piping arrangement that is designed to vibrator of Zhi Zaoing is as vibration type GWV 4/2.

A significant advantage of the present invention is that its response of providing is more faster than the device that we use till today, it is to be noted especially, it can avoid in the existing device can also avoiding the adverse effect of tobacco dust pollution in pipe and the bellows owing to connect the operating lag that the inevitable length of the pipe of air chamber and bellows causes.

In most preferred embodiment of the present invention, its sensor is contained near in the box of air chamber, or is contained in (negative pressure is added on the negative pressure band) in the negative pressure cavity, or is contained in after the negative pressure cavity.

According to clipper control device of the present invention can be the single position control that is used for clipper basically, but as with patent described above in combine use in response to the average control device (as the core checkout gear) of the weight of the cigarette rod of making, effect is best certainly.

An example according to clipper control device of the present invention is shown in the following accompanying drawing.

Fig. 1 is the overall pattern of this device.

Fig. 2 is the cutaway view of spiral piping arrangement.

As shown in Figure 1, tobacco stream 10 forms on a negative pressure band 12.And motion is through an air chamber 14, and air chamber 14 is arranged in a negative pressure cavity, by this negative pressure cavity pressurization is added to be with on 12 and tobacco and inhales on tape.Air chamber self has a pipe 16, and negative pressure is sent to empty 14 by the negative pressure source of this pipe 16 from a separation.Along with the variation of the gas-flow resistance of tobacco stream, the negative pressure in the chamber 14 also changes thereupon, and this variable negative pressure transfers to sensor box 20 by a pipe 18.

A side that comprises this sensor diaphragm of a solid-state differential pressure pickup (as the SCXOID type sensor of West Germany Sensortec Co., Ltd) in the box 20 exposes to the open air in the negative pressure from pipe 18, and opposite side then exposes to the open air in atmospheric pressure by managing 22.This sensor moves spiral piping arrangement 26 by lead 24 to a malleation and sends a signal of telecommunication, and Fig. 2 shows this malleation and moves spiral piping arrangement 26.

As shown in Figure 2, this spiral piping arrangement comprises 100, one the cylindrical shape strong magnets 104 of solenoid around armature 102 coilings, and its two ends are the N utmost point and the S utmost point; Two phosphorus bronze sheet that supporting the two ends of armature.The circumference of these two phosphorus bronze sheet is fixed, and when not having voltage to be added on the solenoid, above-mentioned phosphorus bronze sheet just makes armature get back on the predetermined center like this.Bar 32 is fixed on the armature, and like this, along with the variation from the signal of telecommunication of sensor, bar 32 can move both vertically up and down.

Device 26 is contained on the ring flange 28 by a screwed part 30, relies on this screwed part can manually carry out the zero-bit adjustment of the upright position of device 26.It should be appreciated that the signal that mentions above will be through the preposition amplification of the preamplifier in being contained in box 20, after the main amplifier that can be contained in the box that encapsulates spiral piping arrangement further amplifies.

Bar 32 plays the effect of the input block of hydraulic amplifier 34, and the output shaft of this hydraulic amplifier is 36.Axle 36 rotates according to the motion of bar 32, thereby makes 38 motions of clipper control lever by the bent axle on the axle 36 40.Hydraulic amplifier is driven by hydraulic pump 42.Hydraulic amplifier and hydraulic pressure pump structure are exactly to be used in the structure that is adopted in Mo Lisi mark 8 types and mark's 9 type machines.

Device that signal is delayed time can be housed (as adopting conventional bucket chain formula (electric charge coupling) circuit in the main amplifier.By this device, can be adjusted in time the motion of bar 38 caused clippers, make it to be consistent by the time that part of tobacco that sensor detected arrives clipper with its gas-flow resistance.

Preseting amplifier in the box 20 can (be given an example) and is adjusted into like this: when the negative pressure in the air chamber 14 equaled 12 inch (305mm) water gauge, it produced zero output.Negative pressure is delivered in the solenoid at mean value variation (as ± 1.5 inch (38mm)) up and down will causing malleation signal or negative signal, and therefore solenoid moves up and down bar 32, and suitable adjustment is carried out in the position of clipper.The move distance of bar 32 can be up and down 1.6mm of decentre position, and such motion can cause the clipper maximum can reach ± motion of 8mm.

Claims (9)

1, the clipper position control of cigarette machine comprises:

Hydraulic pressure amplifying unit (34), it has an energy to move in one section predetermined small distance and can provide the input block of a less power;

Output block (36,38,40), these parts are owing to the result of hydraulic pressure can more obviously move with bigger masterpiece in response to the motion of input block;

Air chamber (14), it and tobacco stream are close to, and inside has one to depend on the negative pressure that is added in the pressure on the tobacco stream;

Electric transducer (22), it be contained in with exposing to the open air above-mentioned chamber (14) in negative pressure in, and send a signal of telecommunication thus;

Be used to amplify the amplifier of this signal of telecommunication;

Malleation moves spiral piping arrangement (26), is added with above-mentionedly through amplifying signal on this device, and drives input block (32) in response to this signal.

2, a kind of device according to claim 1, spiral piping arrangement wherein (26) is equipped with armature (102), and this armature (102) is movably fixed by several elastomeric elements (106).Elastomeric element (106) is used for making armature to get back to a reference position when no-voltage adds to solenoid (100).

3, a kind of device according to claim 2, armature wherein (102) reference position is the center, can be done motion in the other direction by the current drives of reverse flow the solenoid (100) from this position armature.

4, a kind of device according to claim 3, carry opposite polarity voltage to solenoid (100) when electric transducer wherein (20) and the amplifier negative pressure in air chamber (14) is higher or lower than a reference value respectively, thereby clipper is moved to a direction or another direction from average or reference position.

5, a kind of device according to claim 4, wherein the solenoid (100) around armature (102) coiling is centered on by a permanent magnet (104) conversely, and this armature is movably fixed by two diaphragms (106) that are positioned at the armature two ends.

6, a kind of according to any device in the claim 1 to 5, comprise the device of delaying time to from the signal of sensor, it is consistent basically that part of tobacco that the effect of this device makes each adjustment and its flow resistance of clipper position be detected by sensor arrives moment of clipper.

7, a kind of according to any device in the claim 1 to 6, electric transducer wherein (20) is installed near in an air chamber (14) and the associated with it box.

8, a kind of according to any device in the claim 1 to 7, spiral piping arrangement wherein (26) can manually be adjusted (by parts 30) for the purpose of zero-bit adjustment.

9, a kind of according to any device in the claim 1 to 8, be used in conjunction with core verifying attachment control clipper in response to the unit weight of making the cigarette rod.