DE2017360A1 - Method and machine for the production of rod-shaped articles for the tobacco processing industry - Google Patents

Description

Bergedorf, April 1, 1970 Patent A / Sch

Keyword: KDF quantity regulation - Hauni file 1105

Method and machine for the production of rod-shaped articles for the tobacco processing industry

The invention "relates to a method for producing rod-shaped Articles of the tobacco processing industry such as filter rods or the like made of several components, and although from a main component and at least one additional component to deal with the main component in which the components are brought together and formed into a strand, which is cut into rods of a predetermined length. The invention also relates to a machine for producing rod-shaped articles for the tobacco processing industry like filter rods or the like made of several components to practice the method according to the invention, with means for Supplying the main component, as well as means for supplying at least an additional component, which is an application device for applying the additional component to the main component includes an apparatus for molding with the additional component provided main component into a strand and cutting means for cutting the strand into bars of a predetermined length.

The starting material for the production of cigarette filters, the filter rope delivered in bales, is very uneven in its structure, i.e. it has a different density or a different mass distribution per unit length, which appears externally in such a way that a filter rope section with strong crimps a less or very moderately curled section follows or vice versa; The mass distribution is proportionate to this difference in curl. Without special measures, these irregularities were also in the filter rods produced from the filter rope and thus also in the filter plugs of the Fil terzigaretten and would mean that the cigarettes for the

1098U / Ö70Ö " ² "

St w .: JCDFHYlen genre ge ment - Hauni file 1103 Bergedorf, April 1, 1970

Smokers have very different draw resistance.

In order to prevent this and to make the filter rope more uniform, it is known to stretch the filter rope and in this way to change its density in the sense of homogenization. In a known filter setting machine (GDR patent specification No. 61 974 / 79b, 24), the filter rod is monitored by a test device and the changes in its density are measured and, depending on the measured values obtained, the stretching of the filter rope is controlled by control means, the degree of stretching of the latter so definitely. Here, the density of the uncovered filter rod is determined either by measuring its air resistance (tensile resistance ) based on a unit of length or by means of its beta-ray permeability based on a unit of length. The measurement of the tensile resistance, regardless of whether the measurement is carried out on the strand or on the individual filter rod, requires very precisely working equipment from a ventilation point of view, which, in the event of minor mechanical errors, e.g. small leaks, deliver incorrect measurement results, which leads to a malfunction of the components feeding and the strand measuring means can result. The determination of the density of the filter rod by checking its radiation permeability offers the advantage that very responsive regulations for the dimensioning of the rod components can be built with it, but because of the radioactivity of the radiation source it requires special safety precautions and corresponding caution from the machine operating personnel.

The invention has the task of producing filter rods in a different way with the greatest possible uniformity in structure, i.e. with uniform power of the main component and uniform distribution of the additional component (s) over the entire length to manufacture. This task is according to the invention solved in that automatically rods from the current

ORIGINAL INSPECTED

Stw .: OP measurement system - Hauni file 1103 Bergedorf, April 1, 1970

Production can be taken and weighed and depending of the weighing result, the amount added per unit of time at least one in the strand to be subsequently formed included component is measured automatically. Since the PiItertau is the main component of the filter strand in terms of quantity and is also the component that is subject to the greater fluctuations in this regard, it is primarily a matter of regulating this; the is best done by varying its density. Based on the known method in which the filter rope supplied from a supply, stretched to change its density and formed into a filter rod is in further embodiment of the method according to the invention provided that depending on the weighing result, the stretching, the filter dew is controlled.

Even with good control of the filter rope, fluctuations in the amount supplied per unit of time cannot be completely ruled out for technological and mechanical reasons, e.g. its width fluctuates within certain limits, so that a filter dust belt of different widths is inserted into the spraying device for applying the plasticizer and is sprayed there and consequently the amount of plasticizer applied to it per unit length of filter rope also fluctuates, and thus also the density or the weight of the filter rod produced therefrom per unit length. Such fluctuations also occur, for example, as a result of fluctuations in the viscosity of the plasticizer caused by changes in temperature, as a result of which the amount of plasticizer sprayed onto the filter rope per unit length can also differ. Also for purely mechanical reasons, for example when the bristles of the brush drum wear _; spray device, the against the | Filter dew sprayed amount of plasticizer and consequently also the amount absorbed by the filter dew fluctuate. So that these inevitable fluctuations or differences have no influence on the end product, the filter rod, the additional component, the plasticizer, is also used according to the further invention.

OR / GINAL INfSPECTED

Stw .: KDF volume regulation - Hauni file 1103 Bergedorf, April 1, 1970

regulates and depending on the weighing result the per time unit Additional component to be applied to the filter rope measured.

To get an average actual value for each weighing process or a statement about a larger filter rod section and not just about a single filter stick and that To get the latter corresponding minimum strand section, the pilter rods are removed in groups according to a further feature of the invention and weighed. The removal the filter rods from the current production and the weighing of them is best done in regular sequence, in order to obtain a constant sequence of actual values and thus continuously intervene in the flow of the components in a regulating manner can. If in addition to the main component also the additional component is to be regulated, then this is expediently done in a further embodiment of the method according to the invention in such a way that groups provided with the additional component Filter rods and groups of the same size, not provided with the additional component, pilter rods automatically removed and separated are weighed and a difference value is formed from the two measured weighing values, which is used to control the each Unit of quantity of filter dew to be applied is used for the additional component quantity.

According to the further invention, a machine is provided for practicing the new method, which is characterized in that that a removal means for removing, {rods from the ongoing production and a weighing device for weighing of the removed rods are provided, the transducers of a control system for regulating the proportion of the components are, which also has an actuator for influencing the quantitative ratio of the components. Intended to here to regulate the proportions of the components the main component of the filter rope can be varied, so are, as usual, means for supplying the filter rope from a supply and provided for processing the same, which a

109ÖU / 070

Stw .: OF quantity regulation - Hauni-Akt1103

lergedorf, April 1, 1970,

Include stretching device for varying the thickness of the filter rope having actuator, wherein according to the further invention the weighing device is connected to a control arrangement of the stretching device. If, on the other hand, the additional component plasticizer is to be varied to regulate the quantity ratio of the components, the machine is, as is known, provided with an actuator which has an application device for applying the additional component, and according to a further feature of the invention, the weighing device is connected to a control arrangement of the application device. If both the filter dew and the plasticizer are to be regulated in the sense of an ideal regulation of the component quantity ratio, according to the teaching of the invention in this case the weighing device is to be connected on the one hand to the control arrangement of the stretching device and on the other hand to the control arrangement of the application device. In order to obtain a reliable statement with regard to the mass or weight distribution in the filter rod, the removal means is designed for removing groups of filter rods and feeding them to the weighing device. So that the control system is continuously fed with actual values by the weighing device, i.e. the flow of controlled variables emanating from the weighing device is precisely defined in terms of time in a lively and technically favorable manner, the removal means is assigned a timer that periodically triggers the removal of groups of filter rods * The removal parts for the removal of the filter rods to be weighed, it is expediently placed on a conveyor that discharges the filter rods; because there the filter rods can be deflected out of its normal path of movement in a particularly simple, r preferably being arranged on the branch drum _r because these means, the intermediate member formed between the stationary feed chute and the moving discharge conveyor on the periphery of extraction means and weighing r; can be arranged directly

Stw .: KDF quantity regulation - Hauni file 11 ^υ 3 Bergedorf, April 1, 1970

Means for removing the piIterstate from the conveyor in connection with a counter to determine the number of each to be removed filter bowls, whereby firstly a gentle Weighing out the filter rods to be achieved and secondly the specified number of pieces is always weighed; advantageous are provided as pneumatic means controlled by the timer, the filter rods blown out of the receptacles of the depository nozzles, since these are particularly with respect to the blown air can be controlled.

To achieve sufficiently accurate weighing results, the Weighing device, preferably from at least one precision balance with electrical output. In the event that both components to be regulated, includes according to another feature of the invention the weighing device has two scales, one of which is for weighing provided with the additional component Filter rod groups and the other for weighing not with the Additional component provided filter rod groups is arranged and the outputs of which are connected to a differentiator which is connected to the control arrangement of the application device; is connected, the difference generator via a to a setpoint generator Connected equalization point with the control arrangement connected is.

In a further embodiment of the machine according to the invention there is the stretching device made up of two spaced apart arranged, drivable drum pairs, of which at least one Irommelpaar is a variable speed drive is assigned as a control arrangement, and a metering device is provided as a support device with a drive variable speed is assigned as a control arrangement. Such a configuration of the actuators for engagement in ctas the quantitative ratio of the components is relatively simple in their practical execution and ensures a reliable function with regard to the control process.

Stw *: EDF quantity regulation - Haüni file 1103 Bergedorf, April 1, 1970

The invention is explained in more detail below with reference to the exemplary embodiments shown in the drawings. Show it *?

FIG. 1 shows the schematic representation of a velvet according to the invention trained filter manufacturing machine with multi-component control in elevation,

Figure 2! Parts of the removal means and the weighing device as well as the latter associated elements of the control arrangement of the machine according to Figure 1,

FIG. 3 shows a basic circuit diagram of the control arrangement of the machine as well as a control for starting and stopping the same,

FIG. 4 shows the structural diagram of the control device of an actuator of the control arrangement and

Figure 5 parts of the removal means, the weighing device and the basic circuit diagram of the associated control arrangement an embodiment of the inventive η Filter manufacturing machine with control of only one component.

The filter manufacturing machine consists essentially of FIG from means for supplying and processing the for generating of a filter rod required components, namely a main component in the form of a filter rope and an additional component in the form of a plasticizer, e.g. triazetine, an apparatus for molding the combined components to a filter rod and for wrapping the latter with a wrapper strip, cutting means for cutting the enveloped filter rod in filter rods and funding for Removal of the filter rods.

The supply and processing means which are structurally connected to the other machine sections to form a unit with regard to the main component, a storage container 1 with a filter dew ball 2, a blow nozzle 3 with counter plate 4, to which the filter rope 5 runs from the bale 2 and from

- 8 - ■

Stw .: KDF men genre regulation - Hauni file 1103 Bergedorf, April 1, 1970

which it spreads into a web with the help of the blown air is, a pulley 6, a further blow nozzle 7 with Counterplate 8, which has the same puncture as the blow nozzle 3 and counter plate 4 have, and one that is arranged next to them Stretching device 9. The stretching device 9 is supported by two pairs of conveyor drums 11, 12, which are arranged at a distance from one another formed, of which the conveyor drums of a pair 12 are driven at constant speed and the conveyor drums of the other pair 11 in terms of their speed are adjustable. It is driven by the pair of conveyor drums 12 via a belt drive, consisting of a toothed belt pulley 13, a toothed belt 14 and a toothed belt pulley 15, connected to a main drive motor 16 of the machine. The drive of the second lördertrommelpaares 11 is from the drive) the first derived; the power is transmitted by a toothed belt pulley 17, a toothed belt 18, a toothed belt pulley 19 iind a continuously variable transmission 21 is formed. To change the speed of the conveyor drum pair 12 of the stretching device 9, the gear 21 is with respect to its gear ratio adjustable; for adjustment An electric motor 22 is provided for the transmission ratio and is connected to a drive shaft 23 of the transmission 21 is. The stretching device 9 is part of an actuator assigned to the main component of the filter rope Descriptive control arrangement, to which the control arrangement formed by an actuator 91 also belongs. The stretching device 9 is a spraying device for supplying the "plasticizer" and applying it to the filter rope 5 24 subordinate. The spraying device 24 has a container 25 with the plasticizer 26, a removal drum 27 for removing the plasticizer 26 from the container 25 and a brush drum 28 for removing the plasticizer 26 from the removal drum 27 and spinning upwards against the stretched Piltertau 5 on. The drive of the brush drum 28 is derived from the drive of the conveyor drum pair 12

109öU / 070e

Stw .: KDF volume regulation - Hauni file 1103 \ -

Bergedorf, April 1, 1970,

and takes place via a toothed belt pulley 29, a toothed belt 31, a toothed belt pulley 32 and a magnetic coupling 33. A DC motor 30 in connection with a control unit 34 in the form of a so-called MINISEMIS, which is described in detail in connection with FIG will be explained, and a chain wheel 35 »36 and a chain 37 existing EettentrieT). The spraying device 24 and the control arrangement consisting of the Gl ei all-current motor 30 and the control unit 34 form the second actuator of the control arrangement of the machine, assigned to the additional component plasticizer, for the further transport of the filter rope 5 provided with the plasticizer 26 from the spraying device 24 to an inlet funnel 38 of a strand forming and wrapping device

39 a conveyor drum pair 41 is arranged, the drive of which takes place from the main drive motor 16 via a belt drive consisting of toothed belt pulley 42 _S toothed belt 43 and toothed belt pulley 44. ;

The strand forming and wrapping device 39 comprises as usual In addition to the inlet funnel 38, an iOrmatic tool 40, a Wrapping strip bobbin 45, conveyor, deflection and guide rollers and a supply means including a glue device 47 for a wrapping strip 46, a format tape 48, which over Deflection rollers 49, 51, 52 and guided by a toothed belt pulley 54, 55 and toothed belt 56 with the main drive motor 16 connected drum 53 is driven. The format tool

40 is a smoothing device 57 for pressing and heating the Strand seam arranged. Behind a flattening device 57 initially closes in the conveying direction of a filter rod 50 a conventional cutting device 58, which the filter rod 50 cut into filter rods 60 of predetermined length, and then a conveyor in the form of a depositing drum 59, which takes over the filter rods 60 coming from the cutting device 58 and hands them over to a conveyor, not shown, which for example, a memory or a tray filler feeds. _ -in -

109044/070 «

Stw .: KDF volume regulation - Hauni file 1103 Bergedorf, April 1, 1970

The control arrangement of the machine for controlling both the main component in the form of the JTiltertaus 5 »as well as the additional component in the form of the plasticizer 26, essentially comprises a removal means 170 for removing filter rods 60 from ongoing production and a weighing device 73 as a transducer, one from stretching device 9 and one Control arrangement The remaining actuator for the filter rope 5, one consisting of a stringing device 24 and a control arrangement Actuator for the plasticizer 26 and a regulating and control unit 89.

The removal means 70 placed on the deposit drum 59 consists of two air nozzles 62, 63 (Fig. 2), which the Filter rods 60 from suction troughs 61 as suction conveyor drum 1 designed deposit drum 59 blow, from two solenoid valves 64, 65 and the latter associated, yet to be described Counters 132, 134 (Fig. 3). The nozzle 62 is by pipeline 66 is connected to the solenoid valve 64, and the blow nozzle 63 is connected to the solenoid valve 65 by means of a pipe 67. The valves 64, 65 are in turn over a bifurcating pipeline 68 on the pressure side of a fan 69, the suction side of which is connected via pipeline 71 with a control ring 72 of the deposit drum 59 and thus with its suction troughs 61.

The weighing device, which is also arranged on the deposit drum 59 73 has two electronic carriages 74, 75 which are designed as precision scales and each have a weighing container 76 and 77 respectively. The scales 74, 75 are at a distance corresponding to the arrangement of the blower nozzles 62, 63 to each other arranged on a carriage 78, which is on a Carrier 79 rests so that it can be pushed back and forth. A servomotor 81 and a spindle 82 are used as the drive for the carriage 78 and nut 83 existing gear provided, of which the spindle 82 with the stationary servomotor 81 and the nut 83 with the movable carriage 78 in terms of movement. Form unity. Between the two scales 74, 75

- 11 109844/0708

ORIGINAL INSPECTED

V. ■ ■ ■ ■ ■ ■ ■ '':

: EDP quantities: Regelxmg - Hauni file 1103 Bergedorf, April 1, 1970

is on the carriage 78 a collection container 84 for ejected Pilter red rods 60 placed.

The slide 78 also serves as a carrier for two actuating elements in the form of a switch ruler 85 mounted on one end and one on its other end Switching ruler 86 fastened on the spindle nut 83 for actuating the limit switches 87 and 88 arranged on the path of movement of the slide 78. for controlling the solenoid valves 64, 65 of the removal means 70.

The actuator assigned to the filter rope 5 includes, in addition to the stretching device 9 described, a control arrangement in Porm of the actuating drive 91. The actuating drive 91 consists according to Pigur 1 from the already mentioned electric motor 22, the drive shaft 23, a known, electrical comparison element 92, a into the control transmission between comparator 92 and Electric motor 22 inserted amplifier 90 with built-in, known polarity reversal means, e.g. polarized relay, as well as a the drive shaft 23 arranged actual value transmitter, a coding disk 93.

The actuator associated with the plasticizer 26 also closes the discussed Be spray device 24 a control arrangement, which of ein'm DC motor 30 and a control unit 34 is formed. In terms of its structure, the control device 34 is based on the principle of semi-conductor control and is a so-called MINISEMI, as it is sold by the company AEG-; its well-known, basic structure results from Pigur 4 · It essentially consists of a speedometer 34a »■ a rectifier 34b, a semiconductor actuator 34c, a pulse control device 34d and an amplifier 34e.

The regulating and control unit 89 is connected to the comparison element 92 of the actuating drive 91 via an electrical line 94, via line 95 both with the magnetic coupling 33, directly and indirectly, namely via a contactor 96, with ■ the control unit 34, via line 97 also with the

- 12 -

10S8U / Q7

- 12 '- "

Stw .: KBF quantity regulation - Hauni file 1103 Bergedorf, April 1, 1970

Control unit 34, via a cable 98 having two lines 98a, 98b with the main drive motor 16, via the three Wires comprising cables 99 with a control panel 101, the an Easter 102 to slow down the filter manufacturing machine, an! Easter 103 for driving the machine, a button 104 for stopping and a! Caster 105 for removing Has samples connected (Fig. 1, 2). According to Figure 1, the Re ge It and control unit 89 is also means electrical lines 106, 107, 108 to the weighing device 73 and by means of lines 109, 111 to the actuating magnets of the solenoid valves 64 and 65 of the removal means 70 connected.

The structure of the regulating and control unit 89 can be seen in terms of its individual components and in terms of the control and regulating technology connections of the same from the basic circuit diagram of FIGS. The part of the regulating and control unit 89 belonging to the regulating arrangement consists of the following elements, broken down into individual control branches. The control branch of the magnetic coupling 33 and the contactor 96 assigned to the control unit 34 has an amplifier 112, a memory 113 and two OR gates 114, 115; The one control branch of the servomotor 81 comprises contactor 116, amplifier 117, memory 118, timer 119 as a timer or trigger for the control processes and the limit switch 87, its other control branch contactor 121, amplifier 122, memory 123 and limit switch 88ι the control branch of the solenoid valve 64 includes an amplifier 124, OR element 125, memory 126, OR elements 127, 128 and delay element 129, as well as memory 131, counter 132 and button 105; the control branch of the solenoid valve 65 contains amplifier 133, counter 134, memory 135 and delay element 136; the counters 132 and 134, which are part of the removal means, are assigned a clock generator 137, which synchronizes them to the machine cycle. Of the two control branches going from the weighing device 73 closes

■ ■■ "■■ - - -I3 _

109044/0708

Stw .: KDP volume regulation - Hauni file 1103/360

Bergedorf, April 1, 1970

according to Pigur 2 the one a difference generator 138, one Comparison junction 139 and a setpoint generator 141, the other a reference junction 142 and a setpoint generator 143 a.

The one used to control starting, speeding up and stopping part of the control unit belonging to the pilter making machine and control unit 89 comprises, in addition to the control branches and elements of the control arrangement already mentioned, the two control branches of the main drive motor 16, one of which is a slot 144, amplifier 145, memory 146, OR gate 147 and the buttons 102, 104, the other control branch contactor 148, amplifier 149, delay element 151, memory 152, OR element 153, delay element 154 and button 103 includes.

Operation of the control arrangement according to Figures 1 to. 4: Assume that the pilter making machine is normally in Is in operation, that is, drives in overdrive, and the spraying device 24 and stretching device 9 are working; in this In the state, the carriage 78 is in the position shown in Pigur 2.

The regulation of the main component Piltertau and the additional component Timer that triggers plasticizers, the timer 119, gives at intervals of a certain duration, e.g. every half an hour, a signal is sent to memory 118. Each of these Signals sets the memory 118 so that the servomotor 81 is switched on through the intermediary of amplifier 117 and contactor 116 is that the carriage 78 on the carrier 79 i * i Moved in the direction of arrow 155 and thus brings the weighing container 76 of the scales 74 into position under the blow nozzle 62. When this position is reached, the switching rule 85 actuates the limit switch 87, which clears the memory 118, as a result of which the servomotor 81 is switched off and thus the carriage 78 is stopped, and the memory 131 is set, whereby an OR gate 125 and amplifier 124 solenoid valve 64 is actuated in the sense of opening and blowing nozzle 62 is pressurized with compressed air,

- 14 - 109844/0708

Stw .: KDF volume regulation - Hauni file 1103 Bergedorf, April 1, 1970

which those moved past her by the disc drum 59, made from 3? iltertau 5 treated with plasticizer 26 3? Filter rods 60 from the suction troughs 61 into the ¥ ge he keeps 76 blows; the respective blowing time of the nozzle 62 and thus the number of the filter rods 60 to be weighed supplied to the weighing container 76 is determined by the depending on the clock generator 46 in the machine cycle driven counter 132 determines, which is brought into effect simultaneously with the nozzle 62 by the limit switch 87 through the intermediary of the memory 131 became. As soon as the counter 132 that is set according to the number of pilter rods 60 to be weighed reaches its target value or the specified number of Eilter rods has counted, it first clears the memory 131, whereby the solenoid valve 64 switched over and the nozzle 62 ineffective and the signal given to it by the memory 131 is deleted so that it automatically returns to zero (starting position) resets; second, the counter 132 sets at the same time it clears the memory 131, the Memory 123, as a result of which the servomotor 81 is now switched on in the opposite direction of rotation via amplifier 122 and contactor 121 and the slide 79 is moved in the direction of arrow 156 via spindle 82 and spindle nut 83. While Of the processes described, the others produced by the machine, i.e. not by the removal means 70, become Eiltersticks 60 removed for weighing, fed from the deposit drum 59 to the discharge conveyor, not shown. As soon as the carriage 78 moving in the direction of arrow 156 arrives in the position illustrated in FIG. 2, actuated the switching ruler 86 the limit switch 88; this first clears memory 123, so that amplifier 122 and "contactor." 121 servomotor 81 is switched off and carriage 78 is stopped, and at the same time it is deleted secondly via an OR gate 115 memory 113, whereby the amplifier 112 to the Magnetic coupling 33 and the signal given to contactor 96 go out, so that the magnetic coupling 33, the brush drum 28 of its

- 15 10§8A4 / 0708

Stw .: KBF quantity regulation - Hauni file 1103 Bergedorf, April 1, 1970

Drive uncouples and the contactor 96 the DC motor 30 as well as the control unit 34 assigned to it switches off; the spray device 24 is thus ineffective. Simultaneously The limit switch 88 sets the memory 126 via the OR element 127 and the memory 126 determined by the delay element 136 Delay the memory 135. The memory 126 operates through the mediation of OR gate 125 and amplifier. 124 the solenoid of the solenoid valve 64, which opens, so that the blower nozzle 62 is acted upon with blown air and now for as long as all of the filter rods 60 moved past it by the depositing drum 59 from its suction troughs 61 into the collecting container 84 blows until memory 126 is cleared again.

The delayed by the action of the delay element 136 Set memory 135 actuates firstly via the amplifier 133 the solenoid valve 65 and secondly the counter 134. The Solenoid valve 65 opens, so that the blower nozzle 63 becomes effective and the filter rods conveyed by the deposition drum 59 60 blows into the weighing container 77 of the scale 75, namely until the actuated by the memory 135 simultaneously with the solenoid valve 65 ″, in its mode of operation, in the construction and in the setting of the counter 132 completely corresponding counter 134 the number of filter rods set on it has counted or has reached its nominal value and clears the memory 135, whereby the solenoid valve 65 via amplifier 133 switched over and nozzle 63 is ineffective. At the same time as the memory 135 is cleared, the counter 134 is set The memory 113 is cleared via the OR element 114 and the memory 126 is cleared via the delay element 129 and the OR element 128. The memory 113 actuates the clutch via amplifier 112 33 and the contactor 96; the former couples the brush drum 28 back to their drive and the latter switches on the DC motor 30 and control unit 34. The spray device 24 is back in action. The one that takes place with a delay Clearing the memory 126 did the toggling of the magnet valve 64, this blocks the pipeline 66

- 36 -

109844/0708 _B ■■

BATH

Tax: KDF-Me η genre ge ment - Hauni file 1103 Bergedorf, April 1, 1970

to the nozzle 62 and the latter is ineffective. The one mentioned The delay caused by the delay element 136 is here chosen so that the nozzle 62 is only switched off when the properly sprayed filter rope 5 is made FiIterstabe 60 have reached her and the last one out Unsprayed filter rope 5 produced filter rod 60 was blown into the collecting container 84 by her. Simultaneously with the signals sent by the counter 134 for the above-mentioned processes, the latter sends over a line 108 a signal to the two scales 74, - 75 of the weighing device 73. At this point in time are due to the control system operations carried out in the weighing container a certain number of filter rods 60 made of plasticizer 26 sprayed filter rope 5 and in the weighing container 77 the same Number of filter rods 60 made of filter rope not sprayed with plasticizer 26 5. Caused by the said, from the counter 134 emitted signals give the two scales 74, 75 the weights measured by them in their weighing containers 76, 77 located filter rod groups in the form of these weights proportional voltages, which actual values of the determined Show filter rod group weights «These actual values are fed to the difference generator 138, which has a From this, the difference value forms that at the comparison point with the corresponding target weight of the filter rod groups the set target value of the target value generator 141 is compared, and the resulting equivalent value forms the. new setpoint for the control unit 34 'is transmitted to the latter via line 97, and this new setpoint is for the control unit 34, the setpoint value and determines the filter rope 5 applied to this per unit of quantity Amount of plasticizer until the timer 119 triggers a new control process and, due to the weighing that takes place, a new one Filter rod groups a new setpoint value for the control unit 34 is formed and entered into it. According to each determined difference from the weights of the two filter

- 17 -

109 8U / 0708

Tax: KDF Merigen Regulation - Hauni file 1103 Bergedorf, April 1, 1970 -

st-abgroup / pen from sprayed and not "sprayed filter rope 5> which is expressed in said new setpoint and a Measure of the amount of plasticizer effectively applied to the filter rope / 5 represents, is then by the control unit 34 im Cooperation with the direct current motor 30, which, depending on the former, the removal drum 27 of the spraying device 24 drives faster or slower, on the one hand, the amount of plasticizer applied per unit of filter rope to this increased accordingly if the difference value formed in the difference generator 138 increases when compared with the setpoint value was small, and on the other hand correspondingly reduced if this difference value was too large compared to the target value. The device 73 given by the scales 75 of the weighing device Actual value, which represents a measure of the actual weight of a filter rod group made of filter rope 5 that has not been sprayed with plasticizer, is not only - as explained - fed to the difference generator 138, but also to the comparison junction 142, where it does not match the target value of the target value generator 143, which is the desired target weight of a filter rod group Plasticizer sprayed filter rope 5 is compared; the resulting comparison value forms the new setpoint for the actuator 91, which is entered via line 94 of the comparison element 92. In dependence of this new setpoint and that of the! coding disk 93 into the Comparator 92 input actual value, the comparator 92 outputs a signal to the amplifier 90, which is positive or megative, depending on whether the actual value outweighs the setpoint or the setpoint outweighs the actual value, and the amplifier 90 causes the electric motor 22 with one or the other direction of rotation with the mediation of the polarity reversal means assigned to it to run, one direction of rotation increasing the gear ratio of the transmission 21 for the purpose of increasing the degree of elongation of the filter rope (if the filter rod group weight determined by the balance 75 is too great) and the other Direction of rotation a reduction of the said gear ratio

- 18 - ■ '■■■■ 100844/0708

"" O Π i 7 ^ R Π ■

Deputy /. : KDF quantity regulation - Hauni file 1103 ■■ ~ "■

Bergedorf, April 1, 1970

Ratio for the purpose of reducing the degree of streaking of the Filter dew (if the weight of the filter rod group measured by the balance 75 is too small) means. The electric motor 22 is then always in the transmission ratio changing sense in action until that of the coding disk 93 the comparison element 92 supplied actual value with that from the reference junction 142 coming setpoint matches. If agreement is reached, so appears at the output of the comparison element. 92 no longer a signal and the electric motor 22 is switched off. In this way, the degree of stretching of the filter rope 5 and thus the density and weight are thus determined with each fishing process per unit length of the filter rod to be newly formed as a function of the actual weight determined by the balance 75 a filter rod group of non-sprayed filter rope 5 varies. Since, as explained, this also applies to the additional component If plasticizer happens, a very uniform end product will be in the form of more homogeneous, same hardness over its entire length or strength having filter rods 60 achieved. .

That combined with the control arrangement discussed above Control system, the task of which is to eject the plasticizer that is necessary when the machine is shut down to automate treated filter rope or strand sections and from the spray device only then the plasticizer to be sprayed on the filter rope when the machine has its has reached normal operating status or drives at high speed, works as follows:

When the button 102 by the operator of the filter manufacturing machine is printed, so the machine is operated in the sense of "slow down", then the button 102 is the Memory 146 set and mediated by. Amplifier 145 and contactor 144, the main drive motor 16 is switched on, that drives the machine at low speed. Although the machine is driven, the spraying device 24 is ineffective, because in this state by the magnetic coupling 33 the brush

- 19 - 1098U / 0708

Stw .: KDP quantity regulation - Hauni file 1103 Bergedorf, April 1, 1970

drum 28 is uncoupled from its drive and also that of the direct current motor 30 for driving the removal drum 27 assigned control unit 34 is ineffective (memory 113 is not set).

Simultaneously with the memory 146, the pushbutton 102 set via OR gate 127 of memory 126, whereby via OR gate 125 and amplifier 124 the solenoid valve 64 des Extraction means 70 is actuated, which opens; Compressed air is applied to the blowing nozzle 62 via pipeline 66; Blowing nozzle 62 now blows the pilter rods 60 moved past it by the depositing drum 59 into the collecting container 84 - as long as the "slow travel" operating state continues. When the machine is moving slowly, the filter rope 5 is not sprayed with plasticizer 26, and all of the Machine-made pilter sticks are ejected because they are made from improperly treated filter rope.

If the machine is set to "fast travel" by pressing button 103 switched, the button 103 clears via OR element ι 147 the memory 146 and sets both the memory 152 as also via OR gate 114 the memory 113. The deletion of the memory 146 causes the slow travel control branch leading over it becomes ineffective (contactor 144 drops out). However, since the memory 152 was set at the same time, the main motor 16 is not switched off, but via amplifiers 149 and Contactor 148 switched to the higher speed corresponding to the overdrive of the machine. The memory 113, which is also set, actuates the magnetic coupling 33 on the one hand and the contactor 96 on the other hand via the amplifier 112. The contactor 96 sets the control unit 34 in BetrJäb and the latter controls the DC motor 30, which drives the removal drum 27 at the speed determined by the control unit 34. The magnetic coupling 33 couples the brush drum 28 to its drive and this sprays the filter rope 5 with the plasticizer 26 removed from the removal drum 27. the set memory 152 is provided with a

■ "- ■■■■ - 20 -

1098U / 0708

Tax: KDF volume regulation - Hauni file 1103 ßergedorf, April 1, 1970

accordingly set delay element 151, predetermined delay via OR element 128 of memory 126 'is deleted, as a result of which the solenoid valve 64 is switched over again and the pipeline 66 is shut off, so that the blower nozzle 62 has no effect will.

When the machine is running at high speed, the filter rope 5 is sprayed with calibrator because the spraying device 24 is active; at the beginning of the high-speed drive, the nozzle 62 is always in action for a while and becomes filter rods ejected to security all out improperly Eject the sprayed filter rope produced filter rods before they are transferred from the deposit drum 59 to the downstream Abförderer can be passed.

If the button 104 is actuated to stop while the machine is moving at low speed, the button 104, the memory 146 is cleared via the OR gate 147; the contactor 144 drops out and switches off the main drive motor 16.

If, on the other hand, the machine is in overdrive and the button 104 is pressed to stop the former, then The button 104 immediately clears the memory 113 via the OR element 115 and immediately sets the memory via the OR element 127 126; furthermore, the button 104 clears with .Derzugung by the correspondingly set delay element 154 via the OR element 153 the memory 152. By erasing the memory 113, the magnetic coupling 33 couples the brush drum 28 from their drive from and the contactor 96 drops, so that this ineffective control device 34 the direct current motor 30 switches off and this no longer removes the sewing drum 27 drives; the spray device 24 is therefore out of operation. The set memory 126 actuates the solenoid valve 64 in the opening direction via OR gate 125 and amplifier 124, whereby the blowing nozzle 62 is brought into action, which together with the filter rods 60 arriving on the depositing drum 59

- 21 -

109844/0708

- ?1 -

9 Π1 7 ^ R Π

Deputy /. : OF-Me η genre ge ment - Hauni file 1103 ' ^D Bergedorf, April 1, 1970

blows into the collecting container 84 ". The simultaneously triggered, however, the deletion of the delayed by the delay element 154 Memory 152 has the consequence that the contactor 148 only after a certain time drops and the main drive motor 16 turns off. This ensures that · all filter rods 60 still manufactured from filter rope sprayed with plasticizer can be removed from the machine or ejected from the blower nozzle 62. . When the machine is shut down from slow speed, only the main motor 16 is switched off immediately. When the machine is shut down from overdrive immediately switched off the spray device 24 and the blower nozzle 62 brought into action, the main drive motor 16, on the other hand, only switched off after a predetermined time in order to achieve the To enable ejection of all filter rods 60 which are still in the machine and produced from sprayed filter rope.

If filter rods 60 are to be removed from ongoing production for any purpose, for example for checking the appearance of the filter rods by the operator, the iaster 105 is printed on the control panel 101 and thereby manually via the OR gate 125 and ' Stronger 124 actuates the solenoid valve 64 in the opening direction, so that the blow nozzle 62 is acted upon with compressed air and blows filter rods 60 as samples from the depositing drum 59, as long as the button 105 is pressed.

In the exemplary embodiment explained above, both components - filter rope and plasticizer - were regulated. If it is desired to regulate only the additional component, the plasticizer, then that remains in FIGS. 1 to 4 The filter manufacturing machine shown is essentially the same, only some structural units are omitted, namely the actuating drive 9.1 for changing the degree of stretching of the filter rope 5 and the reference junction 142 »the setpoint generator and the line 94 »the gearbox 21 needs in this case

- 22 1 0 98AA / 0 7 08

Stw .: KDF volume regulation - Hauni file 1103 Bergedorf, April 1, 1970

to have no adjustable translation. The way of working a machine modified in this way and the control arrangement according to the invention adapted to it remain in principle the same as in connection with the embodiment according to Figures 1 to 4 described.

If only the main component, the filter rope, is to be regulated, so in this case, too, the basic structure remains the filter manufacturing machine according to the invention, as can be seen from Figure 1, the same. Since the additional component, the plasticizer, is not regulated, i.e. when the machine is running, the filter rope is evenly filled with plasticizer sprayed, the control for the spraying device 24 is omitted and the elements belonging to this control are omitted the erfindüngsgemäßeη control arrangement, also comes the scales 74 for weighing the filter tow made with plasticizer sprayed Filter rods in discontinuation; the scale 75 needs-besides to no longer be mobile.

FIG. 5 illustrates a basic circuit diagram corresponding to FIGS. 2 and 3 of a control arrangement modified in this way to regulate only the main component filter rope; in the illustration are for with components according to the embodiment Figures 2 and 3 identical components by 200 increased Be zugs number η used.

On the deposit drum 259 transporting the filter rods 260 a blower nozzle 262 with a pipeline for supplying the compressed air is arranged as a removal means. To control the Compressed air is used by a solenoid valve 264, which is connected between pipeline 266 and a non-illustrated Fan connected pipe 268 is inserted. The solenoid of the solenoid valve 264 is connected to the output of a Connected amplifier 324, the input of which is at the output of a memory 326, to which a counter 332 is also connected is. One input of the memory 326 is with

- 23 1098 km / 0708

Stw.j KDF volume regulation - Hauni file 1103 Bergedorf, April 1, 1970

Timer 319 and its other input are connected to counter 332. The counter 332 is also connected to a clock generator and to a scale 274. The scales 274 with weighing -. "-, container 276 is placed opposite the blow nozzle 262 on the deposit drum 259 and is connected to a comparison point 342, which in turn is connected to a setpoint generator 343 and via line 294 to the comparison element of a non-illustrated actuator 91 the embodiment according to "Figures 1 to 4 corresponding actuator for changing the degree of stretching of the filter rope is connected. The memory 326 set at certain time intervals by the timer 319 actuates the solenoid valve 264 via amplifier 324 in the sense of opening and the blow nozzle 262 acted upon thereby blows the filter rods 260 moved past it by the deposit drum 259 into the weighing container 276 of the scales 274, for as long as until the counter 332 has counted the number of filter rods to be weighed that was set on it. As soon as the counter 332 has counted this number, it clears the memory 326, whereby the solenoid valve 264 is switched and the blow nozzle 262 is disabled, and at the same time gives a signal to the scale 274. The scale 274 has meanwhile blown into its weighing container 276 The filter rod group is weighed and the weight determined is converted into a signal in the form of a voltage and entered at the reference junction 342. This voltage, which embodies the actual weighing value, is compared in the comparison junction 342 with the setpoint value of the setpoint generator and the comparison value resulting therefrom is input as a new setpoint value via line 294 to the unillustrated comparison element of an actuator, which, according to this setpoint value, the stretching device in the sense of increasing or decreasing the The degree of stretching of the filter rope is influenced. ·

• ■■■■■■■ ... _ 24 -

109844/0708

- £ i \ - 9 Π 1 7 ^ R Π

Stw .: KDF volume regulation - Hauni file 1103 Bergedorf, April 1, 1970

The advantages that can be achieved with the invention are mainly that filter rods are produced with it can, which in their structure an optimal evenness where the mass distribution of the components is uniform over the entire lengthj the quantitative ratio the components can and will be chosen arbitrarily of the control arrangement of the filter manufacturing machine according to the invention reliably maintained.

- patent claims -

1 098AA / 0708

Claims (18)

Bergedorf, April 1, 1970 Patent A / Sch 2 01 7 36 G Keyword: KDff quantity regulation - Hauni file 1103 Patent to ρ r ü o he / Method for producing rod-shaped articles ta ^ ak processing industries such as filter rods or the like -. ■ - "ims several components, namely from a main component and at least one additional component for treating the main component, in which the components are brought together and formed into a strand, which is made up of bars of a given length is cut, characterized in that bars are automatically removed from ongoing production and weighed and depending on the weighing result, the amount supplied per unit of time at least one in the following forming strand contained component is automatically measured. . 2. The method according to claim 1 for producing filter rods, in which the main component representing filter rope is supplied from a supply and stretched to change its density and is formed into a filter rod, characterized in that the stretching of the filter rope is controlled as a function of the weighing result will. 3. The method according to claim 1 and / or 2 for the production of Filter rods in which on the surface of the main component representing Filterta, u the additional component is applied, after which it is then formed into a filter rod, characterized in, that depending on the weighing result, the additional component to be applied to the filter rope per unit of time will measure. / 4. The method according to one or more of the preceding claims, characterized in that the pilter rods are removed in groups and be weighed. 1 09844/0708 Stw _o s KDF volume regulation ~ Hauni file 1103 Bergedord, "April 1, 1970th 2 0-1 7 3 6Ό 5. The method according to claim3, characterized in that Groups of filter rods provided with the additional component and groups of the same size not provided with the additional component Groups of filter rods are automatically removed and weighed separately and a difference value is formed from the two measured weighing values, which is used to control the per unit of measure Filtertau to be applied additional component amount is used. 6. The method according to one or more of the preceding claims, characterized. That the removal of the Filter rods from ongoing production and the weighing of the same is carried out in regular sequence " 7. Machine for the production of rod-shaped articles of the tobacco processing industry such as filter rods or the like from several components, with means for feeding the Main component and means for supplying at least one Additional component j the one application device for application the additional component includes the main component, a gate direction for forming the main component provided with the additional component into a strand and cutting means for cutting the strand into bars of a predetermined length, in particular for carrying out the method according to claim 1. .-through this characterized in that a removal means (70) for Removal of bars (60) from ongoing production and a weighing device (73 or 274) for weighing the removed Rods (60) are provided, the transducers of a control arrangement (70; 73j 9, 91; 24, 30, 34; 89) for regulating the quantity ratio of the components (5 »26), which also have an actuator (9, 91 or 24, 30, 34) for influencing the quantitative ratio of the components (5, 26). Stw _v : KDF identification regulation - Hauni file 1103 Bergedorf, April 1, 1970 8. Machine according to claim 7 for the production of ■ filter rods, with means for supplying the filter rope from a supply and for processing the same, which have a scattering oil device for changing the density of the filter rope Include actuator characterized in that the weighing device (73) is connected to a control arrangement (91) of the stretching device (9). 9 «Machine according to claim 7 and / or 8 for the production of Filter rods with an application device for application having an additional component on the JFiltertau Actuator, characterized in that the weighing device (73) is connected to a control arrangement (30, 34) of the application device (24). - 10. Machine according to one or more of claims 7 to 9, characterized in that the removal means (70) removes groups of filter rods (60) and the weighing device (73) is formed feeding. 11. Machine according to claim 10, characterized by a Your removal means (70) pulls arranged the removal periodically of groups of filter rods (60) triggering timers (119 or 319). 12. Machine according to claim 10 and / or 11, characterized in that the extraction point on one of the filter rods (60) outgoing conveyor (59 or 259) of the machine and pneumatic means (62, 63 or 262) controlled as removal means for removing the filter rods (60) from the Conveyor (59 or 259) in connection with a counter (132 or 134 or 332) to determine the number of each to removing filter rods (60) are provided. 109 844/0708 ' Stw .: KDF volume regulation - Hauni file T103 9 0 17Qcn Bdf d 1 Ail 197 ^ U I / JbU ggg un Bergedorf, April 1, 1970 13. Machine according to claim 12, characterized in that a depositing drum (59 "or 259) is used as a conveyor and the filter rods (60) from receptacles (61) of the depositing drum are controlled as pneumatic means by the timer (119 or 319) (59 or 259) blowing nozzles (62, 63 or 262 _o) are provided. 14. Machine according to one or more of claims 7 to 13, characterized in that the weighing device from There is at least one precision balance (74 or 75 or 274) with an electrical output. 15. Machine according to one or more of claims 9 to 14, characterized in that the weighing device has two Scales (74, 75), one of which is for weighing filter rod groups provided with the additional component (26) and the other is arranged for weighing filter rod groups not provided with the additional component (26) and the groups thereof Outputs are connected to a difference generator (138) which is connected to the control arrangement (30, 34) of the application device (24) is connected. 16. Machine according to claim 15, characterized in that that the difference generator (138) via a Yergleichssteile (139) connected to a setpoint generator (141) with the Control arrangement (30, 34) is connected. 17. Machine according to one or more of claims 8 to 16, characterized in that the stretching device (9) from two at a distance from each other, drivable Troromelpaaren (11, 12) consists, of which at least one Drum pair (11) is assigned a drive (91) with a variable speed as a control arrangement. 18. Machine according to one or more of claims 9 to 17, characterized in that the application device is a metering device (24), to which a variable speed drive (30, 34) is assigned as a control arrangement. 1098U / Q7Q8