DE2360991A1 - Flow control between cigarette machine and packaging machine - sensors in buffer store control machine drives - Google Patents

Abstract

A cigarette making machine feeding a packaging machine, has a conveyor preceding the packaging machine which delivers loose cigarettes to an intermediate store which acts as a buffer between them in which part of the storage space is formed by a moving conveyor belt so that the stored quantity can be varied. Control devices on one or both machines can be actuated by control circuits, which receive signals from signal transmitters and upper and lower limiting devices adjacent the buffer store so that the drives can be changed to modify and control the quantity of cigarettes passing between the machines. The control devices operate at a low limit and a high limit of the quantity contained in the buffer store.

Description

WORKS KÖRBER & CO. KG. HAMBURG Z3öO991

Bergedorf, December 5, 1973 Patent Hi / Sch

Stw .: flow magazine sack buffer machine control Hauni file 1290 .. "

Control arrangement for a combination of machines

The invention relates to a control arrangement for a combination of machines, consisting of a production machine for cigarettes, a packaging machine for cigarettes and a cigarette store, which has an inlet for the conveyed in a mass flow from the production machine Cigarettes, an outlet for the cigarettes conveyed in a mass flow to the packaging machine and one that corresponds to the ratio of incoming and outgoing funds Cigarettes controlled. Has drivable bottom band for changing the memory content. _ With a combination of cigarette production machines, e.g. plain cigarette machines or filter attachment machines, With packing machines one likes to use cigarette stores between the connected machines in order to build up or empty a buffer supply in the event of malfunctions in the production machines or packaging machines can. This ensures that, in the event of a relatively short-term malfunction, apart from the malfunctioning machine, nothing is done either the connected machine was shut down and remedied the fault must be approached again. Because you are endeavors to let machines, in particular cigarette rod machines, run continuously, because when restarting after a standstill there is a risk of further malfunctions exists and tobacco losses as well as poorer quality cigarettes occur during the approach. \. .. '

The ones used to bridge short-term disruptions Cigarette stores have a certain limited capacity that will soon be available with modern high-speed machines

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Stw .: flow magazine sack buffer machine control - A 129ο Bergedorf, December 5, 1973

is reached, after which the non-disturbed machine is shut down must become. To increase the storage time in which the non-disturbed machine continues to run and the If the fault of the malfunctioning machine can be corrected, the capacity of the cigarette store can of course be increased. However, this has two disadvantages: on the one hand, such an increase is space-consuming and costly, and on the other hand it becomes a large quantities of cigarettes produced ('if the packaging machine malfunctions), which fill the store without the cigarettes being subsequently released by the faster running of the packing machine are consumed, so that further disturbances after a short time to a complete exhaustion of the capacity of the Memory lead. In such a case you have to keep doing it, by controlling the machines from Hand, empty the cigarette holder (or fill it up), to ensure that a certain, e.g. average, storage capacity is maintained. The object on which the invention is based is to reduce the storage time of a cigarette store of the type mentioned at the beginning Kind without enlargement, to increase its volume and thus to achieve that for the elimination of a malfunction is available for a longer period of time until the non-disturbed machine in the combination has to be shut down.

The solution to the problem according to the invention is that at least one machine is assigned a signal transmitter, which is connected to a control device for driving the machine connected to it via the cigarette store is such that in the event of a production failure the Machine is given a signal to reduce the production speed of the connected machine. at the coupling of production machines and packaging machines

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machines can malfunction on both sides, i.e. Both the production machine and the packaging machine can be disrupted. According to another advantageous Embodiment of the invention is both the Production machine as well as the packaging machine Associated signal generator, which is connected to a control device for driving the packaging machine or production machine in such a way that in the event of a production fault in a machine, a signal for reducing the production speed given to the connected machine. In the simplest case, a production disruption can occur in one or both of the Machines are displayed to the operating personnel, e.g. optically or acoustically. The signal generator can then actuated by the operating personnel, whereupon the signal transmitter drives the connected, undisturbed machine via a control device to reduce it Speed affects. In the course of increasing automation however, in the event of a production fault, a signal is automatically sent to the control device for the Drive the connected machine emitting signal transmitter more advantageous. .

To achieve the above-mentioned object, the cigarette store can be equipped with a button arrangement for the storage content provided which is connected to a control device of a drive of one of the machines connected to one another via the cigarette store in such a way that in the event of a deviation of the memory contents of a desired size changed the production speed of the machine that the memory content reaches its desired size again. It now depends on the type and size of the cigarette

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Stw .: flow magazine sack buffer machine control - A 129ο Bergedorf, December 5, 1973

Memory, on the reliability ratio of the machines connected to one another via the cigarette store and on the difficulties when starting a machine, where the probe arrangement is expediently arranged and how many probe elements are used. The ^lf reliability ^{ratio 11} is understood to mean the ratio of the average malfunctions in the production machines to the average malfunctions in the packaging machines. If, for example, the packaging machine works very reliably and is relatively insensitive to frequent restarting after brief stoppages due to a lack of cigarettes, then it may be advisable to select the empty memory as the target state of the cigarette memory. The more sensitive production machines, which are more difficult to restart when the machine stops, always have the maximum storage capacity available in the event of a malfunction in the cigarette packaging. However, it can also be recommended that the probe arrangement have probe elements for detecting a discrepancy between the memory contents in the positive and in the negative direction. This means that the memory already has a certain amount of cigarettes in its desired state, so that both machines, that is to say the production machine and the packaging machine, can initially continue to run during brief stops of the connected machine. Here, in a further embodiment of the invention, at least one touch element for excessively large memory contents can be connected to a control device of a drive of the production machine, at least one touch element for excessively small memory content can be connected to a control device of a drive of the packaging machine in such a way that the production speeds of the machines are desired value deviating memory content is reduced. Such an embodiment of the invention is always particularly advantageous when both machines of a machine combination, i.e. production machine and packaging machine, are already operating at maximum operating speed.

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Stw .: flow magazine-sack buffer-machine control - A 1290. Bergedorf, December 5, 1973

running. If this is not the case, e.g. the Packaging machine not at the limit of its capacity, then another embodiment of the invention is more advantageous in which at least one pushbutton element for to large memory content and at least one probe element for too small memory content with a control device The drive of the packaging machine bundle is such that the production speed at a desired one Value deviating in the negative direction (too small) memory content reduced, if the memory contents deviate in the positive direction (too large) "is increased. Is reversed the production machine is not at the limit of its capacity driven, i.e. if it still has operating reserves, then in further embodiment of the invention at least one probe element for excessively large memory content and at least one probe element for memory contents that are too small, connected to a control device of a drive of the production machine in such a way that the production speed. Memory content increased if the direction deviates in positive (too large) memory content is reduced. Both measures can also be combined in such a way that at least one key element for memory contents that are too large, with one Control device of a drive of the packaging machine, at least one probe element for memory contents that are too small with a control device of a drive of the product tion machine is connected in such a way that the production speed en deviates from a desired value Memory content can be increased. The last-mentioned measures are always advantageous if the increase or Lowering of the production machines steplessly or in small speed levels can be done. This is at modern drives relatively easily feasible where

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Stw .: flow magazine sack buffer machine control - A 1290 Bergedorf, December 5, 1973

E.g. a DC motor via controllable rectifiers its speed can be continuously controlled. Strand machines for the production of rod-shaped articles of the tobacco processing industry with such continuously adjustable Drives are already being built and have proven their worth. The measures outlined above are in particular also expedient if the production ratio of production machines and packaging machines is not exactly the same, i.e. if the output of the production machine is not exactly the same as the packaging performance regardless of malfunctions corresponds to the packaging machine. In such a case, the cigarette store would be between both machines slowly run empty or full, so that its storage capacity is reduced by manual intervention in the control at least one machine must be brought back to its desired value.

The adjustment of the production speed or the packaging speed to the changing storage capacity is improved if according to a further embodiment the invention several probe elements for detecting differently large positive and negative deviations of the Memory contents of a desired value are provided with control devices of the machine drives are connected in such a way that, as the deviation in one direction increases, they gradually increase in one direction Effect change in production speeds. Ideally, following up on what has been described above The concept of a tactile arrangement for the continuous detection of positive and negative deviations of the memory content from one desired value is provided, which is connected to the control devices of the machine drives in such a way that you can with greater An increasing deviation in one direction causes a steadily increasing change in the production speed.

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Stw .: flow magazine sack buffer machine control .: Bergedor £, December 5, 1973

236099t

A 1 290

The invention is explained in more detail with reference to the drawings containing the exemplary embodiments. Show it:

Figure 1

Figure 1a
Figure 2
Figure 3
Figure 4

characters
till 9

a machine combination consisting of one Cigarette machine with a filter attachment machine directly connected to it, which has a Cigarette storage with a packaging machine • are connected, in a side view, Details of the cigarette store on an enlarged scale .-- "■■ a combination of the figure T in plan view, "." "-" - '■ "." ■ "■ a circuit arrangement for controlling the Drives of the machines of Figures 1 and 2, a control contactor for controlling the drives of the machines of Figures T to 3, ■ ".

Control variants for Figures 1 to 4.

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In FIGS. 1 and 2, a cigarette rod machine 1 for producing cigarettes is directly connected to a filter attachment machine 2 connected, on the filter plug located in a magazine 3 by means of glued covering tape sections, which are withdrawn from a reel 4, are set by rolling around. Such machines are e.g. under the applicant's name "GARANT" and "MAX" in the cigarette industry well known and also in the USA patent specification 3,672,373 (British patent specification 1,303,721) adequately described. From a disc drum 6 of the Filter attaching machine 2, the finished filter cigarettes Z pass between two endless ones that can be driven by a drive 5 Bands 7 and 8 and from there into a cigarette store 9. This has one on the same side as the inlet A Outlet B through which the cigarettes pass into a feed chute 11 leading to the magazine 12 of a cigarette industry known packaging machine 10 (e.g. of the type 3000, 3-79 from American Machinery and Foundry Company) reach. The visible construction elements of this packaging machine are: reel holder 13 for tinfoil bobbins, control drive 14 for the press turret, S't your drive 16 for the wrapping revolver, banding apparatus 17, cellophane wrapping apparatus 20.

The cigarette rod machine 1 and the filter attachment machine have a common electric drive 18, which Packing machine has its own electric drive 19. The per se known cigarette store 9 has an endless one that can be driven via a controllable electric drive 21 Band 22, which carries the memory contents 23 (indicated by cross-hatching) in the form of a stack of cigarettes. On the band 22 is a boundary wall 24 for the cigarette

508 8 2 4/048

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Stw.ϊ Flow magazine sack buffer machine control - A 1290 Bergedorf, December 5, 1973

rescue stack attached and in the direction of arrows 26 and 27 reciprocable. 28 are pillars for the. as High storage trained cigarette storage 9. The electric drive 21 is controllable by one between the inlet area A and the outlet area B, control switch 29 which responds to the pressure of the cigarettes located in this zone and which controls the belt 22 and with him the boundary wall 24 in the direction of arrow 27 controls when the pressure exceeds a certain limit and controls the belt in the direction of arrow 26 when the pressure falls below a certain limit. The production machines 1 and 2 have a signal transmitter 31, which sends a signal to a Control device of the drive 19 of the packaging machine 10 gives up. The packaging machine TO also has a signal generator 32 which sends a signal in the event of a production fault to a control device of the drive 18 of the production machines 1 and 2 deliver. Such production monitoring buttons are known per se and e.g. in the German Offenlegungsschrift 2.013.078 describes “The cigarette memory 9 has a limit switch 33” which when the memory contents are full, i.e. when completely in the direction of the arrow 27 moved boundary wall 24 »a signal to the control device the cigarette machine dispenses; the C igaretfenspeicher 9 has another limit switch 34, when the storage tank is empty, - i.e. at completely in the direction of the; Arrow 26 moved boundary wall 24, a signal the control device of the packaging machine delivers. The limit switches 33 and 34 can be designed, for example, as light barriers.

Figure 1a shows details of the cigarette spinner 9, in particular the guidance of the belt 7 and 8 over

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rolls 42 and 43 or 44. In the deflection area C forms a belt guided over pulleys 45, 46, 47 and 48 49 a moving counter-conveying surface for the cigarettes Z. The control switch 29 is connected to the drive 21 via a further switching device 30.

FIG. 3 shows a control device for the drives 18 and 19. The signal generators 32 and 31 are selection switches 36 or 37 connected downstream, which emit a signal at their outputs a when the signal transmitter is not addressed the machines run undisturbed; the selection switches 36 and 37 enter b at their outputs Signal off when the signal generators 31 and 52 have responded, the associated machines are therefore disturbed. Control signals from the outputs a and b of the selection switches 36 and 37 act on corresponding inputs of control contactors 38 and 39, respectively, which the stator windings of the as Pole-changing three-phase asynchronous motors trained electrical drives 18 and 19 so to the three-phase network RST put that when the inputs a are acted upon, the Three-phase stator windings of the motors 18 and 19 are connected with the number of pole pairs corresponding to the operating speed are. When the inputs b are applied, the stator windings of three-phase motors 1 8 and 19 with a number of pole pairs, E.g. double the number of pole pairs, switched, which corresponds to a reduced speed. When the inputs c of the control contactors are applied, the drive motors 18 and 19 are disconnected from the network RST and thereby shut down.

Figure 4 shows details of the control contactor 38 for the pole-changing three-phase asynchronous motor 18, of which only

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the stator winding I8a is drawn. In the same way can the control contactor 39 of the three-phase asynchronous motor 19 .. 41a and 41b are excitation windings, which when applied with signals via the inputs a or b are excited and thereby single or double Switch the number of pole pairs of the stator winding T8a. Corresponding then rotate the motors at operating speed or at a speed reduced, for example, to half. Instead of Speed ratio 2: 1 can also be used when using separate Stator windings, another speed ratio selected e.g. 3: 2. . -. "". · Mode of operation of the arrangement according to Figures T to 4: The of the production machines, namely the cigarette rod machine .1 and the filter attachment machine 2, manufactured filter cigarettes are between the endlessly circulating Belts 7 and 8 to the inlet A of the cigarette store 9 promoted. They pass through a short storage section and then pass through outlet B and feed shaft 11 to the magazine 12 of the packaging machine 10 that they. wrapped in wrapping material and finished cigarette packs manufactures. The cigarette packs provided with bands are then wrapped in cellophane in the cellophane wrapping apparatus 20. ·

As long as the signal generators 31 and 32 have not responded, the selection switches 36 and 37 emit signals via their outputs a to the inputs a of the control contactors 38 and 39, respectively. The three-phase asynchronous motors. ' 18 and B are from the tax protect 38 or 39 on the stator side connected to the three-phase network RST in such a way that they have a minimum number of pole pairs, i.e. rotate at maximum speed. This means, that the production machines and the packaging machine

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Deputy: Flow meter, magazine, sack buffer machine control - A 1290 Bergedorf, December 5, 1973

drive maximum production speed. If a production fault occurs in the packaging machine 10, i.e. if the signal transmitter 32 responds, the Selector switch 36 sends a signal to its output b the input b of the control contactor 38, which the. Three-phase asynchronous motor 18 of the production machines are connected to the RST network in such a way that the number of pole pairs of the stator winding is reduced, e.g. halved, is. The speed of the cigarette rolling machine 1 and the filter attachment machine 2 is thus reduced by half. As a result of the missing When cigarettes are removed through the outlet B of the cigarette store 9, the pressure in the area of the increases Control switch 29 which controls the controllable drive 21 so that the boundary wall in the direction of the arrow 27 is moved and the memory content of the cigarette holder increases. As the speed of the production machines has been slowed down, the memory content increases relatively slowly, so that there is a chance that the operating personnel disturb the packaging machine can fix. If this is the case, the packaging machine is started up again and as a result of a signal on the Input a of the control contactor 38, the speed of the drive motor 18 of the .Production machines back to full operating speed elevated. If, on the other hand, it does not succeed, the malfunction of the packaging machine within the filling time of the To fix the cigarette store 9, then the fully extended boundary wall 24 actuates the limit switch 33, the a signal at input c of the control contactor 38, whereupon the control slot the drive motor 18 from the three-phase network RST disconnects. As a result, production machines 1 and 2 stop. The restart is expediently like this controlled that next the packaging machine after remedying their fault is approached »until half of the

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Memory is empty again. The emptying of the cigarette store 9 takes place in such a way that the control button 29 with decreasing cigarette pressure the controllable Drive 21 controls in a direction of rotation that corresponds to a direction of travel of the belt 22 in the direction of the part 26 is equivalent to. When the boundary wall 24 has approximately reached the position shown, the production machines 1 and 2 are also started up.

The arrangement works in a corresponding but reverse manner when the signal generator 31 indicates by emitting a signal that the production machines 1 and / or 2 are malfunctioning. In this case, the signal generator 31 via the selector switch 37 ensures that the control contactor 39 connects the stator winding of the drive motor 19 of the packaging machine 10 to the network RST in such a way that the number of pole pairs of the three-phase asynchronous motor increases, thus reducing the speed of the motor connected is. As a result of the reduced speed, the storage time increases _; , ie the time that elapses until the cigarette store 9. : has emptied. The limit switch 34 detects the empty state, which emits a corresponding switch-off signal via input c of the control contactor 39. When restarting after the malfunction of the production machines has been eliminated, the packaging machine 10 is initially not started up again until the boundary wall 24, controlled by the control switch 29, has approximately assumed the position shown. -

Instead of selecting the target state of the cigarette store so, that the boundary wall 24 is located approximately in the middle, thus also capacity reserves for the packaging machine .are available, the target state can be set in such a way that

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that there is normally a minimum amount of memory available. The reason for this is that one is more interested It is the turn of the production machines not to have to stop than the packaging machines that do in this regard are less problematic. If there is a malfunction in the production machines, then the packaging machine must are stopped immediately or after a relatively short time, but this does not have a negative effect, because starting up the packaging machine is less problematic. If, on the other hand, there is a malfunction in the packaging machine on, the production machines can continue to run at reduced speed for a long time until they too, through Response of the limit switch 33 to be stopped.

In addition to the limit switches 33 and 34, the cigarette stores 9 of FIGS. 1 and 2 can contain other cigarette-sensitive cigarettes Be assigned to tactile elements on both sides of the storage center, in which about the drawn boundary wall 24 is located, are arranged. Such tactile elements, e.g. designed as light barriers, are associated with the Reference numerals 151, 152 and 153, 154 are designated. It is assumed that the light barriers 151 and 152 have a signal if they are interrupted by cigarettes on the belt 22 (dark switching), while the light barriers

153 and 154, conversely, emit a signal when they are from the Cigarettes are released (light switching). The probe elements 153 and, which indicate a decreasing memory content

As FIG. 5 shows, 154 are one with inputs a and b Control contactor 139 for the designed as a three-phase asynchronous motor with three windings of different number of pole pairs electrical drive 19 of the packaging machine 1o connected. The control contactor 139 is designed so that when there is a signal from probe element 153 at its input a, a second stator winding of the motor 19 is connected to the three-phase

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network EST sets whose number of pole pairs compared to the number of pole pairs a first stator winding enlarged for normal operation is, so that the motor 19 when connected to the three-phase network rotates more slowly with the second stator winding. In the event of a signal from pushbutton element 154 at input b of the control contactor 139 this connects the third stator winding of the motor 19 to the three-phase network EST, their The number of pole pairs is even greater than that of the second winding. The result is an even lower speed of the motor 19. When there is a signal from the limit switch 34 at input c, it disconnects the control contactor 139 the motor 19 from the three-phase network EST-all from "■ ■ -" ■■■

Similarly, inputs a, b and c are the control contactor 138 for the also as a three-phase asynchronous motor electrical drive designed with three stator windings 18 of the production machines 1 and 2 with the probe elements 151, '152 and the limit switch 33 connected. Of the Motor 18 rotates first; with its first stator winding at full operating speed, when the input is applied a des. control contactor 138 with reduced speed, when input b of control contactor 138 is applied with an even further reduced speed, and with a signal at entrance c he stands still.

Operation of the arrangement of Figures 1 to 5, wherein the Function of signal generators 31 and 32 will not be taken into account in the near future:

As long as the boundary wall 24 is approximately in the middle of the Cigarette storage is located, the tactile elements 151 to T54 so do not emit any signals, the production machines 1 and 2 and the packaging machine 10 run at full operating speed, since the first stator windings of the drives 18 and 19 with the lowest number of pole pairs - with the rotation, Stromnetz RST are connected.

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Deputy: flow magazine sack buffer machine control - A 1290 Bergedorf, December 5, 1973

The boundary wall 24 can now be driven by the drive controlled as a function of the control switch 29 21, emigrate in the direction of arrow 27. This movement can be caused by the fact that the packaging machine TO has a malfunction or that the production ratio between the production machines and the packaging machine is not exactly 1: 1, the production machines thus constantly producing a little more cigarettes per unit of time than the packaging machine packs. Speaks Now the pushbutton element 152 is on, i.e. if, for example, the corresponding light barrier is interrupted, input a des receives Control contactor 138 sends a signal so that it is the second control winding of the motor 18 connects to the three-phase network RST. The motor 18 therefore rotates at a lower speed, so that fewer cigarettes are produced. Was just a shift in the relation of production to production machines and packaging machine is the cause of the migration of the boundary wall 24, then the above is sufficient Reduction of the speed of the motor 18 mostly to a movement the boundary wall 24, again controlled by the control switch 29, in the opposite direction, that is, in the direction of arrow 26 to cause. If the cause was a malfunction of the packaging machine, then the memory contents continue to increase until the pushbutton element 151 also responds. His signal at input b of the control contactor 138 ensures a further reduction in the speed of the motor 18 and thus a further slowdown in the production of the production machines 1 and 2. The time available to rectify the fault in the packaging machine 10, without the production machines 1 and 2 needing to be stopped, so increases significantly. Has the However, the cigarette store 9 is full, so it has not been possible to disrupt the production of the packaging machine

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to fix it in time, this separates at its entrance c from the limit switch 33 acted upon control contactor 138 den Motor 18 from the network RST, so that the production machines be shut down. When restarting the machine combination the operator first drives the packaging machine 10, until after a certain time the production machines 1 and 2 can be switched on, depending on the time of switching on and so that the filling of the cigarette store 9, - run at reduced or at full speed.

When the boundary wall 24 'migrates in the direction of the Arrow 26, that is, with decreasing memory content, caused by an imbalance in the production ratio of the machines connected to one another or due to a fault in production machines 1 and 2, the Speed of the packaging machine 10 from the output signals the probe elements 153 and 154, which the inputs a and b of the ' Actuate control contactor 139 of the motor 19, in stages degraded. If a disturbance lasts for a long time, then will the motor 19 by a signal of the limit switch 34 at "". "" .. "■ -input} c [ies Control contactor 139 completely shut down. Here, too, by gradually reducing the speed of the packaging machine, the storage time is extended, during which the packaging machine is not yet needs to be shut down. After a standstill when the combination is put back into operation the production machines 1 and 2 started until the supply in the cigarette store 9 has grown so far that the packaging machine with reduced or full output can be switched on.

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The above-described mode of operation of the arrangement in the figure can be expanded by signals from signal transmitters 31 and 32 for production disruptions. There will then be three-phase asynchronous motors en 18 and 19 with four windings and corresponding control contactors 138 and 139 with four inputs intended. The control contactors are then, as Figure 5 shows, designed so that they are on when a signal Inputs d from the signal generators 31 or 32 cause a first speed reduction, while signals Trigger further speed reductions on inputs a and b until a signal on inputs c on Motors 1 8 or 19 are stopped. This ensures that in the event of a production disruption first of all the connected machine is reduced in its speed without the effect of the disturbed Production ratio via the buttons of the memory. 9 need to be waited for. In many cases it is possible fix the production disruption almost instantly. In this case the buttons of the memory speak not at all yet. However, the production disruption continues longer, then the speeds are up to the exhaustion of the storage capacity in the positive or negative Meaning further reduced, until the end, after the entire storage time has been used, the machine that has not been disturbed as well is stopped.

Instead of providing half-filling as the desired state of the cigarette store, as described above, the desired state can of the memory, which is sought by the control, also be the empty memory, so that the Produktbnsmaschinen 1 and 2 as much storage capacity as possible is available. In such a variant, the In terms of their function, probe elements 153 and 154 are superfluous.

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Although they can continue to exist, they may then only act on the drive 18 of the production machines in the sense of reducing the speed. . In Figures 1 to 5 of. assumed that the machines of the combination connected to one another, ie the production machines and the packaging machine, are each running at maximum speed consisting for example of each twenty cigarettes, processed in packaging machines of the case., which always whole cigarette blocks, and therefore, based on the number of cigarettes, very high powers have. the variant of Figure 6 is <SL ESEM case by just that at with cigarettes If the cigarette store is full, the packaging performance of the packaging machine can be increased; if the cigarette store is empty, the production output of the production machines can be increased.

For this purpose, the - at the point of the probe elements 151 and 152 In Figures T and 2 arranged probe elements 251 and 252 with a control contactor 239 as a three-phase asynchronous motor drive motor designed with three stator windings 19 connected to the packaging machine; those at the point of the key elements 153 and 154 in FIGS. 1 and 2 arranged probe elements 253 (memory content too large) and 254 (memory content too small) are connected to a control contactor 238 of the drive motor 18 of the production machines, which is designed as a three-phase asynchronous motor with three stator windings tied together. The speeds of the first stand decays the motors 19 and 18 are designed for normal operation. The second stator windings with a "smaller number of pole pairs are triggered by commands from the pushbutton elements 252 and 253

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at the inputs a of the control contactors 239 or 238 connected to the network RST, so that the motors with higher speed work. The third stator windings with an even lower number of pole pairs are triggered by commands from the probe elements 251 and 254 at the inputs'b of the control contactors 239 and 238, respectively connected to the network RST so that the motors work at an even higher speed. Commands at inputs c the Control contactors 239 'and 238 from the limit switches 34 and 33 cause the motors to come to a standstill again. In the variant of FIG. 6, the filling increases of the cigarette store, a gradual increase in the speed of the motor 19 of the packaging machine, a decreasing one Filling a gradual increase in the speed of the motor 18 of the production machines. The result is, that the boundary wall of the cigarette store, at least the tendency, remains in its intended position.

The case described above, namely the boundary wall of the cigarette store is to remain in its intended position, according to a variant of the invention according to ' Figure 7 in that a, Täs'telement 352 for too large Memory content "and a push button 353 for too small Memory contents are provided in the places ah "those in the figures Ί and 2 the probe elements 152 and 153 are, The pushbutton elements 352 and 353 are with inputs a and b of a control contactor. 338 for the. Drive motor 18 of the Production machines connected. The motor 18 is again designed as a pole-changing three-phase asynchronous motor and has three stator windings, one of which is winding (first stator winding) with an average number of pole pairs then with

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: Flow magazine sack buffer machine control - A 1290 Bergedorf, December 5, 1973 -

the Wetz RST is connected if none of the inputs a and b of the control contactor 338 a signal is applied. The second stator winding with a smaller pole pair ζ aiii (than the Number of pole pairs of the first stator winding) is connected to the network if at input b of the control slot of Probe element 353 a signal is applied, while the third stator winding with a larger number of pole pairs (than that of the first Ständerwicüung) then connected to the three-phase network RST when the probe element 352 has an output signal on input a of the control contactor 338. If the memory content increases, so that the feeler element 352 is covered and a signal at input a of the control contactor 338 sets, this connects the third stator winding with the largest number of pole pairs to the network RS ^ T, so that the Three-phase motor 18 assumes a speed below the average speed. When there is a deviation in the other Direction, i.e. when the pushbutton element 353 responds and a signal is sent to input b of the control contactor 338 the second stator winding from the control contactor 338 to the Network RST laid, the smaller number of pole pairs causes a higher speed of the drive motor 18. Has none of the Sensing elements 352 and 353 addressed, the drive motor runs 18 with the average speed of the first stator winding.

In the variant of FIG. 8, it is assumed that the packaging machine has power reserves and a controllable drive. A pushbutton element 452 for a memory content that is too large and a pushbutton element 453 for a memory content that is too small are provided at the points at which the pushbutton elements 152 and 153 are arranged in FIGS. The probe elements 452 and 453 are connected to inputs a and b of a control protection 439 for the drive motor 19 of the

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StwlrFlow magazine sack buffer machine control - A 1290 Bergedorf, December 5, 1973

Packaging machine connected. The motor 19 is again ausgebildi and as a pole-changing three-phase asynchronous motor has three stator windings, of which one winding (first stator winding) with an average number of pole pairs then with the Network RST is connected if there is no signal at any of the inputs a and b of the control contactor 439. The second Stator winding with a smaller number of pole pairs (than the number of IbI pairs the first stator winding) is connected to the three-phase network RST if at input a of pushbutton element a signal is applied while the third stator winding has a larger number of pole pairs (than the number of pole pairs of the first Stand winding) with the three-phase network. RST is connected when the probe element 453 has an output signal at input b of the control contactor 439 there.

If the memory content increases, so that the pushbutton element 452 is covered and a signal is present at input a of the control contactor 439, it connects the second stator winding with the smallest number of pole pairs to the three-phase network RST, so that the three-phase motor 19 has a speed greater ^{than the average v speed} If there is a deviation in the other direction, ie when the probe element 453 responds and a signal is sent to input b of the control contactor 439, the control contactor applies the third stator winding to the three-phase network RST, the larger number of pole pairs causing a lower speed of the drive motor 19 If none of the feeler elements 452 and 453 responded, the drive motor 19 runs at the mean speed of the first stator winding.

The control variants described above are not intended for the use of pole-changing three-phase

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509824/0484

. "," _., 236099]

Stw. RFlow magazine sack buffer machine control - A 1290 ■ BergedSrf, Men "5 ν: Öezanb ^ er ^ iWf ^; t ^^^ ^ ^ ^

Asynchronous motors limited. These "have been used for explanatory purposes of the control principle because of the simplicity of changing the speed "Of course can" an-. These controlled electric motors or gearboxes Find use, e.g. DC motors, their speeds can be adjusted by different setpoint specifications. It is also not necessary that the speed changes be carried out in stages, but a continuously operating button arrangement can be provided for the memory content, which sends a signal proportional to the memory content as a setpoint value of a speed control or regulating circuit gives away.

In Figure 9, such a continuous control of the drive motors 18 and 19 of the production machines or the packaging machine is described in principle. With the motor 21 ■ ;;.:> ·: ..: .- :. . ...-.-. V ■: .- .. us .. ^ ic ; Ü5 ■: - ■ u i-? ν ',. :. ^v ■ - ■ ■ - :; ":. ■. · ■ (see FIGS. 1 and 2) for adjusting the boundary wall

■ - "■ ·" - - - _N '■ - ■■■ -: T'sn'iftiD:;si> i £ rir.i: r · / c ^. ^;! .-: -. *; 24 (Figures 1 and 2) of the cigarette store are mechanically sliders 561, 562 \ of potentiometers 563 or 'via a reduction gear 573. 564 yerbuladen. "Abrasive _" ~ be proportional to the movement ^ he ^ boundary wall 24 twisted ;, so that sif ^ "with .the. Accompanying potentiometers. _T pushbutton 55.2 or 553 with continuous ^ ^ for Ausgangssignai.,. To. Large bzw7 . to little backup ^ contents ^ SiIden. ■ The ^ electric \; __ see output signal of the grinder ^ 561 controls. via. a preamplifier 566 and a ^ pulse shaper ^ uie 5,67 a controllable rectifier 568 _for the as a DC motor ... trained drive motor 18 of the irod ^ iktionsmaschinen with variable DC voltage feeds. " The wiper 562 of the potentiometer 564 controls via a preamplifier 569 and an impulse fqr _f me, rs..tufje _r 571 ^ a ^ controllable,., Equalizer 572, which is designed as a GieicKromotor

03 SAD ° _R , _e , NAL

2360391

Stw .: flow magazine sack buffer machine control - A 1290 Bergedorf, December 5, 1973

Drive motor 19 of the packaging machine with variable DC voltage feeds.

If the delimitation wall 24 visible in FIGS. 1 and 2 moves in the direction of arrow 27, the cigarette store becomes for example due to a production disruption in the packaging machine so filled, the drive motor 21 for the boundary wall 24 rotates the grinder 561, which thereupon controls the controllable rectifier 568 so that the voltage supplied to the drive motor 18 decreases, the Drive motor therefore turns more slowly. This slows down the supply of cigarettes to the cigarette store, to the extent that the store fills up with cigarettes. It is thus an automatic extension of the Storage time reached in the event of longer production disruptions.

On the other hand, if the memory content is reduced, which is caused by a Disturbance of the production machine can be caused, the boundary wall 24 of the drive 21 in the direction of arrow 26 moved. The rotated wiper 562 of the potentiometer 564 then decreases over the controllable Rectifier 572 the DC voltage supplied to the drive motor 19 of the packaging machine, so that the The speed of the motor 19 and thus the packaging complexity of the packaging machine decreases. Reducing the speed is proportional to the decreasing memory content, so that here, too, an automatic adjustment of the storage time the time required to rectify the production disruption is given.

- patent claims -

509824/0484

Claims (11)

Stw .: flow magazine sack buffer machine control - A 1290 Bergdorf, December 5, 1973 Claims \ iy Control arrangement for a combination of machines, consisting of a production machine for cigarettes, a packaging machine for the cigarettes and a cigarette store, which has an inlet for the cigarettes supplied in a mass flow from the production machine and an outlet for the cigarettes in a mass flow. Packaging machine conveyed cigarettes and a base belt that can be driven in a controlled manner according to the ratio of incoming and outgoing cigarettes for changing the memory content, "characterized in that at least one machine (1, 2; 10) is assigned a signal transmitter (31; 32) to which with a control device (37, 39; 36, 38) for the drive (19; 18) of the machine connected to it via the cigarette store (9) such that in the event of a production fault in the machine, a signal to reduce the production speed of the connected machine is given. 2. Control arrangement according to claim 1, characterized in that both the production machine (i; _t 2) and the packaging machine (10) is assigned a signal transmitter (31 or 32) which is connected to a control device (37, 39 or 36 ^ 38) for the drive (19) of the packaging machine (10) or production machine (1, 2) is connected in such a way that in the event of a production fault on a machine, a signal to reduce the production speed of the respectively connected machine is given &":."' 50 9 824/0484 Stw .: flow magazine sack buffer machine control - A 1290 Bergedorf, December 5, 1973 3. Control arrangement according to claim 1 and / or 2, characterized by an automatic in the event of a production fault a signal to the control device for the drive of the respective connected machine emitting signal generator (31, 32). 4. Control arrangement for a combination of machines, consisting of a production machine for cigarettes, one Packing machine for the cigarettes and a cigarette store, which has an inlet for the in a mass flow cigarettes fed by the production machine, an outlet for the cigarettes conveyed in a mass flow to the packaging machine and a corresponding one Ratio of incoming and outgoing cigarettes controlled by a friction belt to change the contents of the storage unit has, characterized in that .the cigarette store (9) is provided with a key arrangement (151 ... 154) for the memory content, which is provided with a control device (138, 139) of a drive (18, 19) one of the via the cigarette store machines (1, 2; 10) connected to one another are connected in such a way that if the memory contents differ the production speed of the machine is changed from a desired size so that the memory content is its desired size reached again. 5. Control arrangement according to claim 4, characterized in that the button arrangement ^ button elements (151, 152, 153, 154, 33, 34) for detecting a discrepancy in the memory content in positive and negative directions. 6. Control arrangement according to claim 5, characterized in that at least one probe element (151, 152) for too large Memory content with a control device (138) a 509824/0484 23.60391 Flow magazine sack buffer machine control -> A 1290 Bergedorf, December 5, 1973 Drive (18) of the production machine (1, 2), at least a feeler element (153, 154) for memory contents that are too small with a control device (19.) of a drive (19) the packaging machine is connected such that the Production speeds of the machines at one desired value is reduced depending on the memory content (Figure 5). - ' 7. Control arrangement according to claim 5, characterized in that at least one probe element (251, 252) for excessively large memory content with a control device (239) of a drive of the packaging machine, at least one probe element (253, 254) for excessively small memory content with a control device ( 238) of a drive (18) of the production machine is connected in such a way that the production speeds are increased if the memory content deviates from a desired value (FIG. 6). 8. Control arrangement according to claim 5, characterized in that that at least one probe element (352) for too large a memory content and at least one probe element (353) for memory content too small with a control device (338) a drive (18) of the production machine is connected in such a way that the production speed if the desired value deviates in the negative direction (too small) Memory content increased if it deviates in the positive direction (Too large) memory content is decreased (Figure 7). 9. Control arrangement according to claim 5, characterized .gekiert, that at least one probe element (452) for too large a memory content and at least one probe element (453) for too small memory content with a control device (439) 50 9 824/0484 23809 Stw .: flow magazine sack buffer machine control - A 1290 Bergedorf, December 5, 1973 a drive (19) of the packaging machine is connected such that the production speed is adjusted from a desired value in the negative direction (too small) memory content reduced, increased if the memory content deviates in the positive direction (too large) becomes (Figure 8). 10. Control arrangement according to one or more of claims 4 to 9, characterized in that a plurality of probe elements (151, 152, 153, 154, 33, 34) to capture different large positive and negative deviations of the memory content from a desired value are provided, the with control devices (138, 139) of the machine drives (18, 19) are connected in such a way that with increasing Deviations in one direction gradually cause an increasing change in production speeds. 11. Control arrangement according to one or more of the claims 4 to 9, characterized in that a key arrangement (552, 553) for continuous detection of positive and negative Deviations of the memory content from a desired value are provided, which can be controlled with control devices (568, 572) the machine drives (18, 19) is connected such that If the deviation in one direction becomes greater, it will constantly change the production speed. effect (Figure 9). 509824/0484