DE1532208A1 - Method and apparatus for forming a supply of cigarettes or other rod-shaped articles - Google Patents

Description

works körber * co. kg. Hamburg _Be rgedorf, April 1, 1969

Patent Hi / Eh.

Keyword: magazine filling-pneumatic-conveying-tubes

A 448
Official File number: P 15 32 208.4

Method and apparatus for forming a supply of cigarettes or other rod-shaped articles

The invention relates to a method for forming a supply of cigarettes or other rod-shaped articles, which in the Further processing is not retained as well as a device for practicing the method.

When cigarettes are mentioned here, similar rod-shaped tobacco articles such as cigarillos and cherubs should also be included or the like can be understood with and without filters and filter rods.

From a production machine, for example a straight cigarette machine cigarettes dispensed by a filter attachment machine are generally placed in containers before further processing. for example trays, which are transferred to the magazine of a further processing machine, for example a packing machine, be emptied. For this purpose, numerous devices have already been developed that mechanically move the cigarettes, for example by means of a slide or endless conveyors, such as conveyor belts, convey into the containers. Furthermore, a transport device has become known with which individual cigarettes are pneumatically conveyed to a troughed belt are supplied, which brings them to the incidence shaft of a container.

The invention is based on the object of cigarettes dispensed by a production machine directly or via collection or To supply distribution means quickly and gently to containers from which they are removed again during further processing.

According to the invention, individual, axially conveyed cigarettes are pneumatically converted into rows of cigarettes in a store receiving them Storage (cigarette storage) merged.

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The cigarettes dispensed one after the other by at least one production machine can be conveyed onto pneumatic conveying paths are distributed, on which they are brought together to form rows of cigarettes.

The cigarettes can be collected in orderly rows before being brought together. To do this, the cigarettes can be used in a accumulated curved, preferably circular arc-shaped surface will. According to a variant of the invention, however, the cigarettes can also be collected in a flat surface. According to a further variant of the invention, from several production machines, in particular from rod cigarette machines, axially conveyed cigarettes are fed directly to pneumatic conveying paths.

A device for building a supply of cigarettes or others Rod-shaped tobacco articles, which are not retained during further processing, using pneumatic conveying tubes is characterized in that the mouths of the pneumatic delivery pipes to at least one row in front of a merged the storage receiving storage (cigarette storage) are.

To form an orderly row of cigarettes before they are transferred to the pneumatic conveying tubes, at least one distribution means is provided for distributing the cigarettes of a row of cigarettes dispensed one after the other by one or more production machines onto the conveying tubes. A very reliable distribution means is a collecting means which has cigarette receptacles lying in one plane, to which conveying pipes are assigned. The collecting means is designed to transfer cigarettes conveyed in a conveying level into a conveying level and contains suction troughs as cigarette receptacles. A transfer device designed to transfer the cigarettes from the suction troughs into the conveying pipes arranged in the conveying level * plumbs the samel agent ?! assigned. Another collecting means, which can be realized with geringein additional equipment expenses _f consists of at least a rotatable drum disposed of in a recess formed by the drum circumference curved surface of the pneumatic conveying pipes

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and delivery means for the delivery of cigarettes from the Collecting media in the delivery pipes. For receiving axially conveyed Cigarettes, the drum is provided with suitable recesses, which are preferably arranged as on the circumference Wells are formed. If these troughs expand in a funnel shape on the Ubernahneseite, the axially conveyed can Cigarettes also on a rotating with high peripheral speed Drum can be safely taken over. A gentle braking of axially conveyed cigarettes and taken over into the hollows Compressed air flowing in the opposite direction is possible through the cigarettes. The braking effect of the compressed air can be supported by suction air, which attacks in a manner known per se on suction slots made in the troughs and the cigarettes in one brings the defined position in the troughs to a standstill.

The delivery pipes can be in the delivery level directly next to the be arranged rotating drum. With a very fast rotating drum, however, the transfer of the cigarettes from the Immediately into the drum can be associated with difficulties, since the impulse accelerating the cigarettes is exactly to that Time to be given muse, at which the hollows of the rotating Drum and the inlet opening of the conveyor pipes are opposite. Taking over the cigarettes from the rotating drum into the conveyor pipes is facilitated by a fixed take-off drum, which contains troughs on part of its circumference, to which the delivery pipes are connected. The troughs of the removal drum widen at the one facing the rotating drum The side is funnel-shaped, so the cigarettes are just as safely removed from the rotating drum as they are from it be taken over.

As a conveying medium, which the cigarettes on the rotating drum Bur transfer into the conveying tubes or those arranged between them Fixed take-off drum accelerated, is advantageous pouring Air, which is assigned to a conveyor pipe by special Channels can be fed. The compressed air supply is released when the desired number of cigarettes has been placed on the barrel and the whole group of cigarettes is down

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in the correct position with respect to the troughs of the removal drum is located.

As a shut-off element for the compressed air, which also acts as a control element acts for the compressed air supply, a with the rotating drum revolving control ring, which is provided with at least one hole, which the compressed air supply in the desired position of the rotatable drum. Another control option for the compressed air, in particular allows a very flexible setting, consists of a counting device to which counting pulses are applied, which emits a scanning device. The electrically or pneumatically operating scanning device emits one pulse each, when the rotatable drum takes over a cigarette or covers a corresponding angle of rotation. Becomes a certain counter reading reached, then the counter emits a control pulse to a valve arrangement, which briefly supplies compressed air. The counter is then reset to zero and a new counting process is initiated.

A transfer of axially conveyed cigarettes in a row of cigarettes corresponding configuration converging conveyor pipes is according to a further embodiment of the invention Distribution means possible, which are designed as pneumatic switches and which, for example, from one or more production machines how cigarettes are fed axially one behind the other to cigarette machines. The cigarettes are in the tubes are then conveyed one after the other to the storage location at which the rows of cigarettes are formed in a storage arrangement should. If the switches work according to the wall jet principle, purely pneumatic or electro-pneumatic controls can be used Control elements can be provided which receive input signals triggered by the cigarettes themselves. In a further variant of the invention, several production machines, for example cigarette machines, are axially conveyed cigarettes are transferred directly into conveying tubes. For this purpose, the production machines must be conveyed directly

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the pipes connected to the cigarette rows at the storage point corresponding configurations are merged.

Magazines from further processing machines are expediently used as cigarette stores ohinen provided. A drive motor can move a relative movement between the cigarettes after a row of cigarettes has been deposited Generate mouths of the delivery pipes and the cigarette store. For example, in the case of permanently arranged magazines, it can be put down a cigarette layer, the row of mouths of the conveyor pipes are raised accordingly. For magazines from which the Continuous filling - for example in the input chambers of a packaging machine - Cigarettes are removed, a special control arrangement that controls the drive can ensure that the Muzzle row of the delivery pipes just above the top row of cigarettes is in the magazine.

The invention is based on the exemplary embodiments shown in the drawing explained in more detail. Corresponding positions in the individual figures are given the same reference symbols. It shows .

Fig. 1 shows schematically one produced by pneumatic conveying pipes Connection between a production machine and a cigarette row receiving storage arrangement,

2 drums for collecting cigarettes in a curved discharge surface in a side view (axial direction),

Fig. 3 is a plan view of the development of the surfaces of the Drums of Fig. 2,

Fig. 4 based on "a longitudinal section IV-IV of the drums of Fig.2 Details of a control arrangement for the supply of the compressed air, which the cigarettes collectively in the conveying tubes promotes,

Pig, 5 on the basis of a cross-section V-V of Pig. 4 a valve control for the supply of compressed air,

Fig. 6 shows a suction head with suction troughs lying in one plane

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for collecting cigarettes in a side view »■

Pig. 7 the suction head of the Pig. 6 in a plan view,

Pig. 8 one as a distribution means for axially conveyed one behind the other Cigarette-working switch assembly,

Pig. 9a, 9b a purely pneumatic control element for the switches,

Pig. 10 shows a detail from the switch arrangement of FIG. 8 using purely pneumatically operating control elements for the switches,

Pig. 11 shows a section of the Pig switch arrangement. 6 using electro-pneumatic control elements for the switches,

Pig. 12 from a transfer arrangement, which is designed as connection points of production machines, to a row of cigarettes receiving storage arrangement running pneumatic conveying pipes,

13 shows a tray which can be lowered by a drive motor as a cigarette store,

Pig. 14 one designed as a magazine by a drive motor in front of one Cigarette storage movable row of mouths of the conveyor tubes,

15 shows a circuit arrangement for controlling the drive motor of Figs. 14 and

16 schematically shows the course of the conveying tubes to a cigarette store.

In Fig. 1, the essential structural elements are schematically a device for practicing the method according to the invention shown. A production machine A for cigarettes, for example a cigarette rod machine, a filter attachment machine or a filter unit is via a distributor B and via pneumatic conveying pipes C with a storage arrangement B connected, in which the cigarettes conveyed through the conveying tubes are stored in an order that can be used during further processing is dissolved again. When filing, the cigarettes can therefore be stored in the form of cigarette cleans

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act in cigarette tape shops. Different configurations dee distribution means and the storage arrangement as well as the associated Control means are included in the following figures. 2 to 5 show a distribution means, which as essentially is formed of a rotating drum consisting of collecting means and its control means. 6 and 7 show, as distribution means, a collecting means in the form of a suction head a for forming ordered rows of cigarettes in one plane.

8 to 11 show distribution means, which consist of pneumatic switches and their control means.

FIG. 12 shows the routing of pneumatic conveying pipes from production machines to a storage arrangement. 13 and 14 deposit arrangements in the form of cigarette tape holders, FIG. 15 shows a control for this, FIG. 16 shows a schematic diagram of the course of the conveyor pipes.

In FIGS. 2 and 3 there is a drum 101, in the following collecting drum called, rotatably arranged between stationary coaxial drums 102 (transfer drum) and 103 (removal drum). It has rounded troughs 104 arranged uniformly on its circumference, which are used for receiving and for transverse axial movement of cigarettes 105 serve. In Fig. 2, right from the line E-F, the transfer drum is removed. On their undersides are those Wells 104 are provided with suction slots 106. Your lateral limits 107 have a conical shape so that the troughs 104 are on the side of the collecting drum from which the cigarettes 105 are taken each form funnel in which the direction of the arrow a 108 cigarettes conveyed on a suction conveyor belt 109 can enter well. Located near the enema under the suction slits 106 a fixed negative pressure chamber 110, which is connected via a suction valve 111 with a not shown Suction pump is in communication.

The removal drum 103 is provided with a channel 112 through the troughs 104 of the collecting drum 101 running past compressed air can be fed. It also has a part 113

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their circumference rounded troughs 114, their lateral boundaries 115 also have a conical shape, so that the troughs on the side facing the collecting drum 101 are each funnel form, in which the cigarettes can be easily taken over by the collecting drum. At the one facing away from the collecting drum 101 There is a fixed connection on the side of the take-off drum drum 116 with bores 117 which merge into pneumatic conveying pipes 118, preferably working with compressed air. The guidance of the delivery pipes themselves is explained later. The stationary transfer drum 102 instructs at the point of the cigarettes are transferred to the collecting drum 101, a funnel-shaped trough or nozzle 119. She also has on the points that face the troughs 114 of the removal drum, compressed air channels 120, which are used to transfer a desired Number of cigarettes are briefly connected to a compressed air source, not shown. The control of the compressed air supply can be very simple, for example depending on a certain angle of rotation covered by the rotating drum, take place by means of a slide control.

For this purpose, as shown in FIGS. 2 and 3 and the details of Control showing Fig. 4 can be seen, all compressed air channels 120 are connected to a collecting line 321, which is connected to a common compressed air feed line 122 is in communication. The compressed air feed line has an interruption in which a control ring 123 rotates synchronously with the collecting drum 101, the bore 124 of which the connection between a compressed air line 125 and the compressed air feed line 122 at the time releases, in which a group of cigarettes on the collecting drum, from which a row is to be formed in the cigarette store, facing the associated troughs of the removal drum or is about to.

The common collecting line 121 can also temporarily use a valve can be connected to the compressed air feed line 122. The valve is then conveniently controlled by a counter, which receives counting pulses after a certain angle of rotation of the collecting drum and at a certain counter

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stand, which corresponds to the transfer of the desired number of cigarettes to the collecting drum, emits an output signal. In Pig. Such an arrangement is shown schematically in FIG. 5a. A gear 126 rotates with the collecting drum 101, the individual Teeth in a suitable initiator 127 each generate a pulse when a trough of the collecting drum 101 hits the Transfer point of the cigarettes passes. A so-called, per se known proximity initiator or a Be provided slot initiator. Such initiators emit an output pulse when approaching a ferromagnetic Body, in the present Pail of a tooth of the gear 126, a high-frequency oscillation tears off. A downstream, preferably also contactlessly working counter 128 emits a signal when a certain preset Number of counts is reached. The counter is then reset to its initial value, and the counting begins again. Such counting devices are known and are not the subject of the invention. The contactless Sensing is not on the proximity switch shown limited. Scanning arrangements using photoelectronic, inductive, capacitive or isotope beams can also be used Find use.

Instead of an electrically operating initiator, a compressed air pulse generator, shown schematically in FIG. 5b, can be used find, which in the simplest case consists of a nozzle 129 from which a constant measuring air jet flows out. Runs a tooth of the Gear 126 passes close to the nozzle, the measuring air jet is prevented from flowing out for a short period of time. The Indian Supply line of the measuring air jet resulting pressure pulse can, if necessary after conversion into an electrical signal, in a preferably contactless (inductive or capacitive) working converter 130, the counting device 128 are fed for further processing.

The electrically or pneumatically generated output signal of the counter 128 energizes a valve 131, which briefly controls

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connection between the compressed air feed line 122 and the manifold 121 opens. Controlling the valve via a counting device has the advantage that the number of cigarettes, which together by a common blast of compressed air are passed into the conveyor pipes, can be easily adjusted without mechanical release members having to be adjusted.

Of course, the valve 131 can also be operated in a known manner by a mechanical trigger rotating with the drum 101, for example a cam.

The drums 101 and 103 are covered with a suitable cover cylinder, for example a plexiglass shell 100, covered.

The described arrangement works as follows:

In the direction of arrow 108 on the suction conveyor belt 109 one behind the other Cigarettes 105 conveyed in, which are dispensed, for example, by a cigarette rod machine (not shown), pass the nozzle 119 of the transfer drum 102 and get into the troughs 104 of the collecting drum 101. The Inlet of the cigarettes in a manner known per se by means of an eccentric acceleration drum (not shown) or by means of compressed air pulses, which are conveyed axially one behind the other Accelerate cigarettes individually and thereby separate them from one another. The cigarettes are from one of them through the Channel 112 of the stationary removal drum 103 blown against Compressed air flow and / or braked by suction air acting on the suction slots 106 and in a defined position over the Suction slots held. After the desired number of cigarettes, in the embodiment 20 pieces, from the troughs the collective roma 101 has been recorded opens when this group is located opposite the troughs 114 of the stationary removal drum, a previously described one that acts as a slide Control ring or a valve controlled in the manner described, the compressed air supply to the compressed air channels 120 of the fixed transfer drum 102, which the cigarettes in the Wells 104 gives an impulse, so that these together first in

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the troughs 114 and from there into the conveying pipes 118.

In the pig. 6 and 7, a transfer device is shown which comprises a collecting means designed as a suction head, the cigarettes brings into a level discharge surface. A sponsor to the Conveying disordered cigarettes, for example, consists in a known manner of a conveyor belt 136 on which cigarettes 105, for example, can be guided to the suction head 137 in a disordered manner. The suction head has recesses connected to a suction air source 138. It can be designed in accordance with the suction head described in German patent specification 1 192 964. In the sphere of influence Cigarettes reaching the recesses are sucked in by the suction air acting in each case on a slot in these recesses sucked in and held.

A scraper 139, which can be moved in the direction of arrow 141 by a pneumatic drive element 140, for example, is used to transfer the collected cigarettes into the receiving area of the conveyor pipes 118. The pneumatic drive element 140 is controlled by a solenoid valve 142, the exciter winding 142a of which is a vacuum switch 142b receives an electrical signal when the negative pressure in the suction head increases when the plumbing recess is occupied by a cigarette. A spring ensures the return of the scraper. A switching element embodied in the exemplary embodiment as a microscope holder 144 interrupts the excitation circuit of the solenoid valve 142 as soon as the stripper 139 reaches its end position. The microscope is actuated 144 · by the Naee 143 of the scraper. In rough operating conditions, it may be advisable to use a contactless proximity switch instead of an electromechanical switch. Such contkitloae approaches are known to eich. So are sui »Example light barriers applicable. Another type of contactless proximity switch consists of so-called proximity switches, in which a ferromagnetic body approaching an electrical oscillating circuit detunes the oscillating circuit in such a way that the oscillation leaves. The breakdown of the oscillation then causes an output signal from the contactless proximity switch.

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In the transfer area of the conveyor tubes 118 there is a trough plate 146, the individual troughs of which receive the cigarettes transferred by means of the stripper 139. The scraper is provided with a number of bores 147 corresponding to the number of cigarettes taken over by the suction head. These holes are connected to a source of compressed air 148 as soon as the scraper 139 has reached its end position. A pneumatic switching element, for example a one, is used to control the connection between the compressed air source 148 and the bores 147 Solenoid valve 149. The microswitch 144 then controls the excitation winding of this solenoid valve as a function of the position of scraper 139.

The mode of operation of the transfer device of FIGS. 6 and 7 is as follows;

The cigarettes 105 conveyed by the conveyor belt 136 and collected by the suction head 137 are removed by the scraper 139 moved towards the trough plate 146 in response to a signal from the vacuum switch 142b. The scraper operates in its end position 139 the ala limit switch acting microswitch 144, which on the one hand excites the drive element 140 of the scraper interrupts the controlling solenoid valve 142, on the other hand emits an opening signal for the solenoid valve 149. The compressed air flowing through the bores 147 then gives the cigarettes lying on the trough plate 146 an impulse which conveys them into the tubes 118. During the return of the scraper 139 is the excitation coil of the solenoid valve is de-energized, the compressed air supply interrupted with it. Instead of the trough plate 146, a tube plate can be provided to which the individual tubes U8 connect. The compressed air can then pass through separate channels be fed to the individual tubes of the tube plate independently of the scraper.

Fig. 8 contains a switch arrangement for distributing axially one behind the other conveyed cigarettes, for example by a or several cigarette rod machines are dispensed. Singles-

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units of this turnout arrangement are made of Pig. 10, which shows a section. A conveyor belt 109 _f serves as part of a cigarette machine (not shown) in the known manner as a suction conveyor belt and is connected to an inlet pipe 150 of the switch arrangement. Pneumatic switches 151b ... 151t are arranged one behind the other in the inlet pipe The switches 151b ... 151t work according to the wall jet principle (Coanda effect). For this purpose, they each have two control nozzles 152b ... 152t and 153b ... 153t A flow of conveying air, which enters the inlet pipe 150 through an inlet slot 154 with a tangential flow component, for example, adheres to the wall at each branch against which it is once directed by the flow of control air very simply by switching the control air jet from one control nozzle to the other opposite wall possible. For this purpose control elements 155b ... 155t are provided, which are supplied with compressed air via a common feed line 156 drawn as a dotted line and their outlet openings 157b ... 157t and 158b ... 158t with control nozzles 152b ... 152t or 153b .. 153t of the switches are connected via connecting lines indicated as dashed or dash-dotted lines 159b ... 159t or 160b ... 160t.

Sin control element that is responsible for such a switchover in FIGS. 9a and 9b show a very advantageous manner by causing the cigarette itself. The control element of Fig. 9a exists essentially consisting of a ball 161 which is arranged in a cylinder 162 so that it can move freely. The cylinder 162 has two axial inlet openings 163 and 164, duroh the compressed air can be supplied from the supply line 156, and two radial outlet openings 157 and 158. The effective cross-sectional area at eintr, for example at the right inlet opening 163, is larger than that of the other inlet opening, in the example

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of the opening 164 »in its supply line is a throttle part which greatly reduces the pressure in the left part of the cylinder 162 166 is arranged. A control line 167, which connects the bridge in the upper part, is located parallel to the right-hand inlet opening of the cylinder so that the exerted on the ball 161, force directed from right to left is smaller because of the smaller effective cross section of the inlet opening 163 than the force exerted on the ball from left to right, although the pressure in the left part of the cylinder is less than in the right part, the ball remains in the position shown and thus releases the outlet opening 158. Will the control line 16? blocked, the pressure in the right part of the cylinder rises; the right-to-left force on the The ball then exceeds the force in the opposite direction, so that the ball moves to the left and thus the outlet opening 157 releases. Since in this position the effective cross-sectional area of the inlet opening 164 is much smaller than in the previous one Position of the ball, the force exerted on the ball and directed from left to right cannot exceed the counterforce even if when the pressure in the left part of the cylinder on the full pressure in the line 156 rises «Because of the large cross-sectional area of the inlet opening 163 exceeds that of force directed right to left the counterforce even if the shut-off of control line 167 is lifted again To move the ball 161 back into the initial position shown, a blast of compressed air is sufficient via a reset line 168 Given strength.

Essentially the same, the hate of a bullet, however avoidant and therefore even more responsive arrangement FIG. 9 b shows in which the ball has been replaced by a membrane 169. The modes of operation of the control elements of both figures are otherwise the same.

Control elements of the type described above, which can be inexpensively injected or pressed into plastic, are assigned to the switches in FIG. 8 in such a way that the outlet openings 157 ′ each with the control nozzles 152 and the outlet openings 158 td

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Control nozzles 153 are connected. The control lines 167 of the control elements each open into the branches branching off at the switches Pipes

The reset lines 168b ... 163t of all control elements 155 are connected to the bus 170, which is via a controllable valve 171 is connected to a compressed air source 172 · This valve is controlled as a function of the pressure air flow occurring in the outlet opening 157t of the last control element 155t. If such an air flow occurs, the valve closes for a short period of time the connection between compressed air source 172 and collecting line 170

How a point control works using Pig. 9 described, purely pneumatic control elements is based on the Pig. 10 with a section 165 of the switch arrangement explains the switches 151b, 151c and 151d as well as the pneumatic connection lines of the associated control elements shows · The consideration is based on the point in time at which the creation of a new row begins. All At this point in time, control elements are returned to their initial position by a reset pressure air signal triggered in the reset lines 168 by the last cigarette of the last row formed.

The first cigarette dispensed by the conveyor belt 109 of a cigarette machine enters the inlet pipe 150 and passes through the Branches of all switches, since all control nozzles 153b ... 153t emit compressed air which is directed in such a way that the compressed air jet adheres to the pipe 150. When the first cigarette reaches the mouth of the control line 167b of the first switch 151b associated control element 155b, then it interrupts the compressed air flow from the control

Ltung. This interruption causes a pressure increase in demN ^ control element and thus a switchover of the output air remote, which is now via the outlet opening 157 and via the

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Line 159b of the control nozzle 152b of the switch 151b is fed. By changing the control air flow, the conveying air flow changes its direction and flows into the branch connected to the switch 151b, to which the conveyor pipe 118b is connected. The switchover is retained even if the first cigarette has entered the delivery pipe 118a and the control system's mouth 167b, since the conveying air flow maintains its direction due to the wall jet effect and also the control nozzle 152b continuously emits a control jet in the direction of the junction. The second cigarette taken into the inlet pipe 150 is taken over by the conveying air flow at the switch 151b in the junction and so gets into the delivery pipe 118b. In this way it passes the opening of the control line 167c of the second Control element 155c, which then also switches its output, so that the control nozzle 152c of the associated Soft 151c emits an air jet and deflects the conveying air jet into the branch. The next cigarette comes through this Branch into the conveying pipe 118c and thereby triggers a switchover of the conveying air flow in the upstream switch 151d the end. In this way, the cigarettes conveyed axially one behind the other arrive one after the other in the various conveying tubes 118a ... 118s, which they combine to form a row in a cigarette store. Reached the last cigarette on the branch the switch 151t the opening of the control line 167t of the last control element 155t, then gives this to the outlet opening 157t from an output signal which is fed to the valve 171 and this to briefly open the connection between Pressurized air source 172 and reset manifold 170 caused. The resulting compressed air pulse in the reset lines 168b ... 168t puts all control elements in their Starting positions back, so that a new row can now be formed.

Instead of the purely pneumatic ones described in FIGS. 9a and 9b Control elements can also use electropneumatic control

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Erungselemente 187 may be provided, as shown in FIG. 11. In each a cylinder 173 is an axially movable spool valve

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174 arranged, which is driven by an electromagnetic system 175 will.

The cylinder receives compressed air through its inlet port 156. The slide has a rest position in which it opens the outlet 158 release * and the outlet opening 157 blocks. The outlet openings are in accordance with the dashed or dash-dotted lines in FIG. 8 again via lines 159, 160 Control nozzles 152 and 153 of the switches 151 connected. The electromagnetic system 175 is very fast in accordance with the magnet systems responsive relay formed. A spring 176 takes over the return movement of the control slide the magnet system 175 from one arranged in the branch of a downstream switch or in the first conveyor pipe Scanning element that generates a signal photoelectronically, capacitively or by means of isotope radiation when a cigarette passes through it, via a memory 178 and, if necessary, an amplifier 179, the magnet system 175 of the control element applied. The memory 178 has a memory input G and an erase input H and has a dominant erase behavior. Such memory, which at the same time amplifier and pulse shaping properties have, are known in various embodiments. As a scanning device is in the embodiment a light barrier 180 is provided, each of the opposing light sources 181 and photoelectronic receivers 182 contains. Between the last-mentioned components of the light barriers there is a transparent one Material section 183 of a conveyor pipe 118. The outlet openings 157, 158 of the control elements 187 are again connected to the control nozzles 152, 153 of upstream switches 151. The outputs of the photo-electronic receivers 182 are associated with the memory inputs G of the memory 178 , Control elements and the delete inputs H of the memory nachgaqchalteter Control elements connected.

The method of operation is one with electropneumatic control elements is of the very flat type of operating point arrangement the following: ^

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The control slides of all control elements 187 are in the position shown before the formation of a new row, in which their outputs 153 deliver compressed air via the lines 160 to the control nozzles \ of the switches 151. The compressed air delivery jet therefore runs along the inlet pipe 150 and opens into the first conveying pipe 113a. The first into the inlet pipe 150 The cigarette taken over thus reaches the delivery pipe 11'a and 11'a solves at its transparent section 185a in the Licn f.schranke 180b emits a signal which is sent to the memory input G of the memory 178b of the control element 187b assigned to the upstream switch 171b arrives. The output of this The memory energizes the magnet system 175b of the control element, which moves the control slide 174b when its armature is attracted shifts to the left, which thus blocks the outlet port 153b and releases the outlet port 157b. This gives the steering nozzle 152b an air flow, which the conveying pressure air flow in the branch the switch 151b and thus diverts into the conveyor pipe 113b. The following cigarette that gets into this delivery pipe again triggers a photo-electronic signal, which once in the manner described a switchover of the compressed air flow triggers in the upstream switch 151c and on the other hand also arrives at the reset input H of the memory 178b and this because of the dominant deletion behavior of the memory. The magnet system 175b of the control element 187b is de-energized, and the control slide 174b is returned to its original position by the return spring. Be that way the magnet systems of all control elements are excited one after the other and again de-excited. The light barrier 180t arranged in the branch of the last switch 151t only gives an output signal to the clear input H of the memory 158t, which belongs to the control element 187t assigned to the switch 151t. So are after the last cigarette in a row has been dispensed, all control elements are switched back on before a new row is formed their starting position.

Fig. 12 shows schematically an arrangement in which the conveyor pipes

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118a. »* 118t on the conveyor belts 109a. ·. 109t of cigarette rod machines 184a ... 184t are directly connected. The conveying compressed air is fed through the slots 154 to the conveying pipes 118 supplied. The cigarettes dispensed by the cigarette machine go directly into the conveying pipes that are attached to the ale magazine 210 formed storage arrangement combined into a configuration corresponding to the row of cigarettes to be formed are.

In Fig. 13, a tray 190 is provided for each cigarette holder, who sits on a pad 191. The pad 191 is at endless Chains 192 attached, which run over rollers 193. The two lower rollers are with the shaft of a known per se Stepper motor 194 connected. Located under the vertical conveyor system a horizontal conveyor belt 1951 filled the Schragen carried away. In front of the filling side of the viewing agent there is a row of mouths 196 of the delivery pipes 118, the Mouths are held together by a fastener 197. The shaft of the stepper motor sets when excited by one Control pulse back a certain angle of rotation, which is converted into a vertical movement of the chains and thus the base 191 is implemented. The angle of rotation covered in one step is possessed so that the vertical movement corresponds to a cigarette layer thickness in the tray 190.

The excitation system of the stepper motor, which is designed as a magnet system for example, receives an electrical control signal when a group of cigarettes is taken over into the conveyor tubes. Such a signal, delayed if necessary, can be saved in the troughs 114 of the drum X03 (FIGS. 2 and 4) from the microscope holder 144 of FIGS 3) or from that of the last turnout of the figures

11 assigned control element are released. This control signal also acts on a bistable multivibrator 19§Wine so-called flip-flop, which after each input impttla its% output pulse changes. Such items are on

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Stw.j Magazine filling-pneumatic conveying tubes - 1. 4. 1969 P 15 32 208.4 - A 448 -

known. The output lines of the multivibrator are with the excitation windings of a lifting magnet 199 or a reset magnet 200 connected. The lifting magnet works against the action of a spring 201. Its stroke corresponds to half a cigarette diameter. The armature 202 of the lifting magnet contains a bore 203 into which a locking pin 204 under the action of a spring 205 intervenes. The locking pin is activated by the reset magnet pulled out of the bore 203. At the beginning of the filling, the tray 190 is in its uppermost position. After dropping a first row of cigarettes conveyed in the conveyor tubes 118 in the tray, the stepping motor 194 receives a pulse, which triggers a step and thus a lowering of the slope. At the same time, the bistable multivibrator receives a Input pulse. Its output pulse excites - if necessary via an amplifier - one of the magnets 199 or 200 that was not energized in the previous step, for example the lifting magnet 199. Its armature 202 attracts and moves the row of orifices transversely axially to the direction of the delivery pipes 118 half a cigarette diameter, so that the mouths of the delivery tubes lie over the gaps in the cigarettes that were placed first. The next row of cigarettes conveyed by the conveyor pipes is then deposited. The stepper motor 194 again receives a control pulse that triggers a further step. At the same time, this impulse is applied to the input of the bistable multivibrator, which switches its output and thus excites the reset magnet 200. The locking pin 204 is withdrawn by the reset magnet and the armature 202 is moved by the spring 201 into its starting position. The mouths the conveyor pipes are thus again over the gaps of the last row deposited. This is how the cradle becomes Filled in layers and gradually lowered in between. The individual rows are each with a gap. The full trays arrive on the conveyor belt 195 and are removed, while a new empty tray, which has been conveyed in the meantime, is attached to the Muzzle row 196 of the pipes is gradually lowered over past. Conveyor devices for conveying empty and for conveying away

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Stw.s magazine filling-pneumatisohe-conveying tubes - 1. 4. 1969 P 15 32 208.4 - A 448 - S ^

Stuffed Sohragen are known and for example in the German Patent 1,194,303.

In Pig. 14 is the storage arrangement as a magazine 210, for example one or more packing machines (not shown) educated. From the output shaft 212 subdivided by webs 211, the layers of the to be packaged cigarette formations, for example a twelve formation consisting of two layers, by means of not shown The plunger is ejected and placed in the packaging line of the connected Paok machines handed over. The side walls 213 of the magazine 210 each have a window 214, which consists of a Recess or can consist of transparent material. before In the magazine, the delivery pipes open again in a row of mouths 196. The side walls are at both ends of this row of mouths 213 of the magazine comprehensive carrier 215 and 216 attached. The carrier 215 carries two light sources arranged one above the other 217 and 218, while the carrier 216 is also arranged one above the other photoelectric elements, in the example photodiodes 219f 220, carries. The connecting cables of the light sources and photodiodes are led via loops of sufficient length to downstream control elements, which are described in more detail below are explained.

The row of mouths 196 of the delivery pipes 118 is by means of a rack 221 can be moved vertically. A pinion 222, which is mounted on the shaft of an electric drive, serves to drive the rack. motor 223 is seated. The gear, which consists of a pinion and a rack, is self-locking. The rack is supported in bearings 224. The delivery pipes are fixed to a loop via a loop Support led. This guide is shown in one of the following figures. The radius of curvature of the loop is like this dimensioned so that he can with the unhindered passage of the cigarettes through the tubes a vertical movement of the mouth row from a lower boundary line 225 to an upper boundary line 226 permitted. The tubes are made of flexible material, for example plastic.

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Stw .: Magazine filling-pneumatic-conveying tubes - 1. 4. 1969 P 15 32 208.4 - A 448 aft - «β4 ^ -

In Pig. 15 shows a control for the drive motor 223. The output lines of the photodiodes 219, 220 are below Interposition of recognized pulse shaping stages (Schmitt trigger) 227, 228 are connected to the excitation circuits of switching elements 229, 230 for pulse shaping and / or amplification. That When energized, switching element 229 applies drive motor 223 to the feeding network 231 with a phase sequence, one of which is the rack 221 results in upward moving direction. The switching element 230 sets the motor with a reversed phase sequence and thus reversed Direction of rotation to the network. The pulse shaper stage 227 is connected so that it has an electrical, the downstream Switching element 229 emits exciting output signal only when it receives no input signal from the associated photodiode 219. If this signal disappears, the pulse shaper enters electrical output signal. Between photodiode and pulse shaper stage a delay element 232 known per se is connected. The pulse shaper 228 is connected so that it only emits an output signal exciting the downstream switching element 230 when it is an output signal from the photodiode 220 receives.

Operation of the arrangement in Fig. 14 and the associated Control in Fig. 15:

In the magazine 210 collection or distribution means described on the one hand by at earlier figures transferred in the conveying tubes and stored by these funded cigarettes in rows, on the other hand 212 cigarettes are removed from the output shaft and transferred to the packaging machines "In undisturbed operation, the number is the per Unit of time supplied to the magazine cigarettes approximately equal to the number of cigarettes removed. The top row of cigarettes would then be roughly in the middle of the magazine and sway up and down by a small amount. Malfunctions in the Paok machines or in the pre-locked production machines cause the top row of cigarettes to migrate up or down. In such a case, the row of orifices 196 of the conveying pipes must be tracked to avoid congestion or excessive drop heights of the cigarettes

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808863/0143

BAD OFi: G!?] AL

. Stw t-Magazinftillen pneumatic conveyor pipes - 1. 4. 1969 P 15 32 208.4 - A 448 ^ A ^

Avoid BU. The control of this tracking take over Light barriers · If the top row of cigarettes is between the light beams of the light barriers, then the Motor stopped because none of the switching elements responded. The top row of cigarettes wanders down and falls below the light beam of the lower light barrier, then the photodiode 220 receives light. Your electrical output signal excited the switching element 230, which turns the motor on with one direction of rotation lays the net 231, which moves the rack 221, the row of mouths of the conveyor pipes 118 and the light barriers downwards, until the light beam of the lower barrier through the top row of cigarettes is covered again. At that moment, the output signal of the photodiode 220 disappears, so that the switching element 230 drops out and the engine stops the top row of cigarettes over the upper light barrier if their light beam is covered, the output signal of the Photodiode 219 disappears and the pulse shaper stage 227 is there an output signal that energizes the switching element 229. This puts the motor 223 in reverse phase sequence to the network, see above that it moves the row of orifices upwards until the photodiode 219 receives light again and the output signal of the pulse detector stage 227 disappears. With the two-point control described, the line of mouths of the delivery pipes follows larger emigrations the top row of cigarettes in the magazine.

Instead of the light barrier, other contactless barriers, for example working with ultrasound or isotope radiation, can also be used Find use. The position of the top row of cigarettes can also be determined by a mechanical feeler element.

At the upper limit 1. nien 223 and 226 can not be shown, Per se known limit switches can be provided, which shut down either the packaging machines or the production machines.

Fig. 16 shows the course of the conveyor pipes 118 from a fixed

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Stw .: Magazine filling-pneumatisohe-delivery tubes - April 1, 1969 P 15 32 208.4 - A 448 «(ι - β *. -

Guide 233 to the rack 221, between the latter Construction elements run the existing flexible material conveyor pipes in a loop 234, the radius of curvature is dimensioned so that the cigarettes when moving between the lower boundary line 225 and the upper boundary line 226 of the schematically indicated magazine 210 neither get stuck nor damaged.

If the pneumatic conveying pipes are sufficiently flexible, it is a production machine or one of several production machines existing group with one further processing machine or with a group of several further processing machines connectable. Packing machines in particular come into consideration as further processing machines. A recoupling of one or more Production machines on one or more further processing machines can be achieved by connecting the pipes to one or more of the aforementioned machines one or more other machines can be implemented.

Towards the end of their conveying path, the cigarettes are advantageously braked, as this enables more precise placement as well delays causing excessive tobacco failure are avoided Counter-pressure air or suction air can be provided for braking. The combination of both braking methods results in a very safe one and gentle braking. Objects that are electrostatically charged can be braked by electrostatic forces. In the simplest case, the electrostatic charges are generated in conveyor pipes made of suitable plastic, which are located at Electrostatic charge pass through the objects. The braking effect can still be reduced by applying additional charges strengthen.

The invention has numerous advantages, the transfer of rows of cigarettes to the magazine of a further processing machine saves a transport process. Immediately because of the row formation need at the entry point of the finishing machine

809883 / 0U2

Stw.j Magazine filling-pneumatic conveying tubes - 1. 4. 1969 P 15 32 208.4 - A 448 Pic- - ** ■ * -

the cigarettes are no longer transferred from the production machine or from a sewer-switched collecting device will.

The reduction in the filling and transport processes not only saves money but also saves time and a gentler treatment of the cigarettes and thus an improvement in quality.

In a! Conveying process in which all cigarettes in a row are removed together by a rotating collecting means, the associated control means can be proportionate slow and therefore reliable even at high conveyor speeds of cigarettes work.

If the collecting means is a rotating bowl drum, then this drum can be part of a filter attachment machine which the cigarettes are already being processed on drums and therefore a single handover is easy and gentle.

In a! Conveying process in which all cigarettes in a row are removed together by a collecting means designed as a suction head with individual pickups, the transfer of a Guaranteed uninterrupted number of cigarettes. The associated control means can also be used at high conveying speeds of cigarettes relatively slowly and therefore reliably work.

During a conveying process by a production machine dispensed cigarettes are brought together to ISLhen without the interposition of collecting means, is a very quick and easy process gentle promotion possible. The braking and acceleration problems that exist, especially at higher speeds, are eliminated during the transition from an axial movement to a transverse axial movement. The distributor arrangement required when dispensing with collecting means advantageously consists of pneumatic transfer tubes in which a flow of conveying air is controlled by control jets will. Particularly advantageous after the wall jet

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Stw .: Magazine filling-pneumatic conveying tubes - April 1, 1969 P 15 32 208.4 - A 448 J ^ J - β *. -

principle working points, whose control air jets through the cigarettes are self-controlled. A very reliable reversal of the control beams is through pneumatic Amplifier elements are possible that are influenced by the cigarettes, in which an implementation of the pneumatic variable present control signal in a different physical variable, for example an electrical variable, is omitted. Pure high speeds electropneumatic control elements are suitable, in which the cigarettes are recorded electronically. The actual switching of the control air flows is then taken over electrically operated force element, for example a solenoid valve.

When axially conveyed cigarettes are brought together to form rows in which the cigarettes are placed directly, i.e. without Interconnection of collecting means or distributor arrangements in corresponding conveying channels, for example pneumatic conveying pipes are taken over, even the turnout arrangements and their control elements are omitted.

Through the optional coupling of one or more production machines with one or more further processing machines and particularly easy to do with flexible pipes realizable feasibility on the side of the production machines or of the finishing machines from one machine to another machine, there is an optimal elasticity of the coupling of production machines with further processing machines achievable with little transport effort.

- Claims 909883 / 0U2

Claims (30)

Stw.ι magazine filling-pneumatic conveying tubes - 1. 4. 1969 P 15 32 203.4 - A 443% H claims ^ 1. Method of building a supply of cigarettes or other rod-shaped tobacco articles that are used in further processing is not retained, characterized in that individual, axially conveyed cigarettes pneumatically to form rows of cigarettes are brought together in a store receiving the supply (cigarette paper store). 2. The method according to claim 1, characterized in that the »at least one production machine delivered one after the other Cigarettes are distributed on pneumatic conveying paths, on which they are brought together to form rows of cigarettes will. 3. The method according to claim 2, characterized in that the Cigarettes dispensed one after the other by at least one production machine, accumulated in orderly rows and pneumatic Conveyor paths are fed, on which they are brought together at the same time au rows of cigarettes. 4. The method according to claim 3, characterized in that the axially conveyed cigarettes are accumulated in a curved, preferably circular arc-shaped surface. 5. The method according to claim 3, characterized in that the cigarettes are collected in a flat surface. 6. The method according to claim 3 or one or more of following, characterized in that during the time in which the cigarettes of a cigarette row are conveyed, the cigarettes of the next cigarette row in an ordered row are accumulated. 909883/0142 Stw .: Magazine filling-pneumatic-conveying-tubes -1.4 »1969 P 15 32 208.4 - A 448 O 7. The method according to claim 1, characterized in that of several production machines, in particular of straight cigarette machines, axially conveyed cigarettes are fed directly to pneumatic conveying paths. 8. Device for forming a supply of cigarettes or other rod-shaped tobacco articles, which during further processing is not preserved, using pneumatic conveying tubes, characterized in that for exercising of the method according to claim 1 or one of the following, the openings of the pneumatic conveying pipes (118) to at least one Row (196) are brought together in front of a store receiving the supply (D, 190, 210) (cigarette store). 9. The device according to claim 8, characterized in that at least one distribution means for distributing the of one or several production machines successively dispensed cigarettes of a row of cigarettes is provided on the conveyor tubes. 10. The device according to claim 9 »characterized by a distribution means designed as a collecting means, consisting of at least a rotatable drum (101) arranged in a curved discharge surface formed by the circumference of the drum pneumatic conveying tubes (118) and from transfer means (102, 103, 116) for transferring cigarettes (105) from the rotatable Drum in the conveyor pipes. 11. The device according to claim 10, characterized in that the rotatable drum (101) is provided with receptacles for axially conveyed cigarettes (105), such as troughs (104), and there possibly in the transfer area of individual cigarettes that are conveyed axially in the direction of the troughs onto the rotatable drum (101) a pressure and / or suction air connection (106) is provided for braking the cigarettes. 909883 / 0U2 Stw .: Magazine filling-pneumatic conveying tubes - April 1, 1969 P 15 32 208.4 - A 443 OQ 12. The device according to claim 10 or 11, characterized in that the transfer means one next to the rotatable drum (101) arranged upright drum (103) (removal drum) with troughs (114) arranged on its circumference, to which the Conveying pipes (118) are connected. 13. The device according to claim 8, characterized in that a collecting means (137) with in one plane as the distribution means lying cigarette holders is provided, which conveyor pipes (118) are assigned. 14. The device according to claim 13, characterized by a transversely axially conveyed cigarettes from a conveying plane Collecting means (137) with suction troughs (138) as cigarette receptacles and through a die designed to convey in a discharge plane Transfer means (139) designed to convey cigarettes in the conveying level from the suction troughs into the conveying pipes (118) 15. The device according to claim 10 or one or more of the following, characterized in that the conveyor pipes a common, depending on a certain number of cigarettes, taken from a collecting means (101, 137) w are, shut-off means controlling conveying air (123, 131 »149) assigned. 16. The device according to claim 15, characterized in that the shut-off means for the one having a rotatable drum (101) Collecting means a control slide provided with at least one control opening and moved synchronously with the rotatable drum, Preferably, a circumferential control ring (123) provided with bores (124) is provided, the bores of which have been placed back predetermined, the acceptance of the desired number of Cigarettes release the conveying air supply by appropriate routes. 309883/0 1 42 Stw .: Magazine filling-pneumatic conveying tubes - April 1, 1969 P 15 32 208.4 - A 448 17. The device according to claim 10, characterized in that a controllable valve is provided as the shut-off means receives a control signal after covering predetermined distances of the drum. 18. The device according to claim 10, characterized in that the 3 A controllable valve (131) is provided as a shut-off means, which valve is dependent on the count of a counter (128), which is acted upon by counting pulses from a scanning arrangement (127) which scans the cigarettes taken over from the rotatable drum receives a control signal. 19 · device according to. Claim 9, characterized in that as a distribution means for distributing the cigarettes dispensed one after the other by one or more production machines to the Pneumatic conveying pipes, preferably switches (151) operating according to the wall jet principle, are provided. 20. The device according to claim 19, characterized by bistable pneumatic control elements (155) for the switches (151), the output compressed air channels of which are controlled by the cigarettes themselves (157, 158) are connected to control channels (152, 153) of the pneumatic switches (151), 21. The device according to claim 19, characterized by the axially one behind the other requested cigarettes detecting, preferably contactless scanning devices (180), whose Output signals are applied to electromagnetically actuated valves (171), the compressed air of which also emits output lines the control channels (152, 153) of the pneumatic switches (151) are connected. 22. The device according to claim 8, characterized in that the pneumatic conveying tubes (118) are directly connected to the delivery elements of production machines (134) are connected. 909883/0142 Stw .; Magazine filling-pneumatic-conveying-tubes - 1. 4. 1969
P 15 32 208.4 - A 448 23. The device according to claim 8, or one of the following, characterized characterized in that the conveyor tubes (118) store one of the desired positions of the cigarettes in the store have the appropriate order. 24. The device according to claim 8 or one of the following, characterized in that a magazine is used as a cigarette store {210) is provided. 25 · Device according to claim 24, characterized in that the magazine (210) is assigned to one or more packing machines is. 26. The device according to claim 8 or one of the following is 22, characterized in that a container, preferably a tray (190), is provided as the cigarette store. 27. The device according to claim 24 and 26, characterized by a drive (194, 223) for a relative movement between the cigarette store and a row of mouths on the store side
(196) of the conveyor tubes (118) after a row of cigarettes has been deposited in the cigarette store (190, 210). 28. The device according to claim 24 and 27, characterized in that the drive (223) lifts the row of mouths (196) of the conveying tubes (118) after depositing one layer of cigarettes in the cigarette store designed as a magazine (210)
is trained. 29. The device according to claim 24 and 27, characterized by a control arrangement for positioning the row of orifices
Conveying tubes corresponding to the cigarette level in a magazine (210) from which cigarettes can be removed during the filling process 9O9883 / 0U2 Stw »: Magazine filling-pneumatic-conveying tubes - April 1, 1969 P 15 32 208.4 - A 448 30. The device according to claim 29, characterized by two with the row of orifices (196) moving light barriers arranged one above the other and monitoring the filling of the magazine (210) (217, 219} 218, 220) with horizontal rays of light, of which the upper one, when the light beam is interrupted, a signal acting on a drive (223) in the lifting direction, the lower one when it is released Light beam emits a signal that acts on a drive (223) in the lowering direction. 909883/0142 Blank page