EP2397041A1 - Paper channel connection device for the tobacco processing industry - Google Patents

Abstract

The device (1) has a channel regulating device causing adjustment of a lateral position and direct suppression of transverse characteristics on a transfer cam roller. A channel middle axis forms an adjusting normal for normal characteristics of a cladding paper web (9), where the normal characteristics correspond to the middle axis and determine a position in the connection device. The channel regulating device holds a steering device (5) in a normal position for maintaining the normal characteristics, where the normal position falls in alignment with the middle axis.

Description

The invention relates to a paper channel connecting device of the tobacco processing industry, adapted for producing and adjusting the connection of a Hüllpapierbahn by Bobinenauslaufrolle dispensing Bobinenvorrichtung with a Hüllpapierbahn by Maschineneinlaufrolle receiving, they to Hüllstücken a tobacco product processing manufacturing machine, comprising a wrapping paper web, a straight Channel center axis having paper channel with a bobbin-side Bobinenanschlussende and a machine-side machine connection end and connected to this machine connection end guide means which is formed by a guide head which is in its channel center axis corresponding dimension short in relation to the length of the paper channel and the litter paper web laxative to a Rotary axis rotatable transfer roller and on the wrapping paper web to the lateral guide boundary having cross-wise running of the wrapping paper web is suppressed at the transfer roller when the paper channel is fixedly arranged and aligned in the connection state between the bobbin device and the production machine in the desired setup position.

A device of the type in question serves to unroll and align a wrapping paper web from a paper roll package, a so-called bobbin, and to feed it to the tobacco-processing industry in the correct position of a tobacco product manufacturing machine. The wrapping paper is special paper for tobacco products, namely cigarette paper for wrapping tobacco rods, filter wrapping paper for wrapping filters or tipping paper for the adhesive connection of tobacco rod and filter. Such wrapping papers are provided as a relatively narrow reel wound on the reel. For example, a web width of 54 mm determined by double cigarette paper width is already relatively large. The physique of said wrapping or wrapping papers is very different and delicate. For example, environmental influences of storage in particular due to humidity and temperature. The papers are relatively thin and susceptible to damage at the edges of the web. In particular, as a result of edge damage, the wrapping paper web can easily tear in the course of subsequent processing. A production machine in which the unrolled wrapping paper supplied as web material is processed for wrapping tobacco sticks, producing filters or covering paper casings, is operated at a particularly high speed. Typical speeds are 600 meters per minute and more. For positionally correct processing in the processing or production machine, it is important that the wrapping paper web is fed into the production machine with the highest guidance accuracy. For example, when cutting a cigarette paper double-stranded web centrally, the highest cut quality is required, which requires precise alignment of the web with its longitudinal section. The web edges must remain intact, also as part of the shell product. The winding layers of a unwinding reel do not run exactly above each other. As a result of this and depending on the individual physics of the wound wrapping paper web, a minimal offset occurs temporarily during unwinding, but this can already result in an inadequate processing quality or even an operational standstill in the order of magnitude of, for example, a few thousandths of a millimeter , Above all, the paper channel connecting device must be capable of precisely positioning and aligning the wrapping paper web which has been unwound continuously and discontinuously from a reel for insertion into the production machine. The channel must also form a robust protective housing for passing through the wrapping paper web, and the paper channel should be easy to bring in its paper web guide position and orientation, namely in its set-up position.

In order to deal with the sensitive wrapping paper web material for tobacco products and to meet some of the stated requirements, in practice a paper channel connecting device is operated, which guides the paper by means of a web edge guide. To adjust the guide, the paper channel must be adjusted by adjusting by hand. With such a web edge guide, it is indeed possible to produce a fine guidance if setting specifications and regulations for paper storage and for bobbin operation are accurately observed. But the disadvantage is the design of the device, special dependence on the paper physis, considerable effort to Adjusting the guidance, consequences of insufficient unwinding quality of bobbins and susceptibility to interference due to contamination. This is done with a drawing according to Fig. 1A and 1B illustrates the state of the art. Fig. 1A and 1B illustrate a paper channel connecting device, as it is used in the practice of the tobacco processing industry today. Fig. 1A shows a schematic side view of a paper channel connecting device 1 according to the prior art, and Fig. 1B is a plan view of such a paper channel connecting device 1. A paper channel PK is connected at its bobbin-side Bobinenanschlussende 12 with a Bobinenvorrichtung 7 and at its machine-side machine connection end 13 with a manufacturing machine 8. For connection to the bobbin device 7, the paper channel PK on the bobbin device 7 is aligned in alignment with the web outlet on a reel spool 73. The machine connection end 13 is set up by means of a guide device 2, which is formed by a guide head FK, for connection to the production machine 8. The guide head FK has in succession arrangement in parallel alignment a guide pin FB with collars SR and a transfer roller UR on. To set the guide, the collars SR are first to move and set immovably to the width of a wrapping paper web 9. The guide head FK is then aligned in the alignment of the collars SR approximately with the paper channel PK. For this purpose, the guide head FK is connected about a pivot axis SA to the paper channel PK, by means of a clamping device KE, which connects the guide head FK firmly in clamping attachment with the paper channel PK. In order to align the running direction LR of the wrapping paper web 9 precisely on the inlet via a machine feed roller 83, the wrapping paper web 9 is roughly adjusted, not yet fixed orientation of the paper channel PK and the guide head FK through the paper channel PK under contact with the guide pin FB between the collars SR passed through at the transfer roller 4 and run-in at the machine infeed roller 83 into the production machine 8. In order to achieve the final alignment, the paper channel PK and the guide head FK are set in position not yet completely clamped, angle changeability between paper channel PK and guide head FK by adjusting about the pivot axis SA. This is accomplished by aligning and positioning the assembly by impact with a device hammer. This setting is extremely time-consuming and labor-intensive and requires repeated testing. she is particularly dependent on the nature and characteristics of the wrapping paper, and it may need to be redone in the event of severe variations in the paper-handling characteristics. The edges of the wrapping paper web 9 can be easily damaged on the collars SR. In operation, only the collars SR press the current wrapping paper web 9 in the desired position. The mechanical load on the web edges is great. This leads to abrasion and contamination.

The invention is based on the objectives to provide a said paper channel connecting device, which is particularly easy to install without special setup and adjustment measures and largely independently of the winding condition used bobbins and the physique of the wrapping paper an automatic guidance of the wrapping paper web produces precise entry into a manufacturing machine of the tobacco processing industry and reliably maintains the precise trajectory required for processing. The paper channel connecting device should be robust and small-sized and low-maintenance and reliable to operate.

Objectives of the invention are achieved in conjunction with the features of the aforementioned generic paper channel connecting device, characterized in that the transfer roller as a component of the actuating means is an actuator that allows for controlled Querverstellen the wrapping paper web exclusively at the end of the roller tread and the web edges freely on the wrapping paper web engages that the actuating means further comprises a hinged at the machine connection end of the paper channel automatic steering device, which is arranged completely within the guide head and the transfer roller with freedom of movement on a transverse to the channel center axis directed and symmetric to this guide curve adjustable movable, and that the actuating means also a corresponding the adjustable movement of the transfer roller the lateral position and each transverse running of the wrapping paper web in the web run area of the transfer reel grasping and zur Korrektursteu The channel center axis acts as the rule base of the channel control device an adjustment standard for a position determining in the paper channel connection device and directional, the channel center axis corresponding to a cross-course with fine control counteracting channel control device which acts to adjust the lateral position and to suppress the transverse course directly to the transfer roller Normal course forms the Hüllpapierbahn and the channel control device can hold the steering device in a coincident in alignment with the channel center axis normal position to maintain the normal course.

The paper channel connecting device according to the invention achieves a number of advantages. A substantial advantage consists in that a fixed dimension of the paper channel forming a defined set-up base, namely a defined straight channel center axis, with which the paper channel extends in the longitudinal dimension of the paper channel connecting device, is used to provide an actuating element, namely the transfer roll in one to align the associated normal position, which ensures as a target position on the one hand that set by the paper duct Hüllpapierbahn to establish a normal course is aligned exactly with the channel center axis, and on the other hand ensures that temporary disturbance deviations are effectively suppressed by the normal course. This position and alignment are achieved, which are also referred to below as paper edge control. The straight channel center axis does not necessarily have to be the geometric center axis of the paper channel. Straight channel center axis is to be understood as meaning any straight channel axis which forms a fixed straight connection orientation associated with the paper channel as the control station defining the normal position of the steering device for the channel control device. Thus, the straight channel axis normalizing the normal course setting is an axis which is set up and aligned with connecting parts or elements at the paper channel ends and automatically comes to lie in the center axis of the wrapping paper web when the paper channel is centered on the reel-up device by means of its connecting elements or parts or the production machine is connected. Connection elements may be, for example, plug-in elements or connecting flanges, which are adapted to corresponding connection elements or parts on the reel device or the production machine.

It is according to the invention of particular importance that the transfer roller by means of the steering device with freedom of movement is freely movable transversely to the channel center axis and that the channel control device directly, that is without the interposition of steering elements of the steering device acts on the transfer roller. This achieves a controlled kinetic behavior of the transfer roller, which reliably corrects for the smallest disturbance deviations in high-speed operation, for example even with a frequency in the range of at least 100 Hz. An essential measure consists in the fact that the wrapping paper web remains positioned only by surface closure, for example in the frictional connection and / or with adhesion to the transfer roller, the web edges remain completely free and unaffected by the guide in the paper channel connecting device. Suitably, the deflection angle of the wrapping paper web at the transfer roller is at least approximately 90 °. The paper channel connecting device according to the invention is a small-sized, space-saving set-up unit, which readily specifies the wrapping paper web run, as it is required for operation of the processing machine. Conventional time and labor-consuming adjustments omitted. The paper channel connecting device according to the invention is connected in a simple manner at its two terminal ends on the one hand with the Bobinenvorrichtung and on the other hand with the manufacturing machine in axially fixed alignment position, said directional connection requires no adjustment or readjustment to align the paper channel. This makes the setup of the paper channel connection much easier. During operation of the paper channel connection, a set course on the transfer reel is reliably maintained due to the controlled steering device, even if reel rolls of different provenance, very different Hüllpapierphysis and / or running and winding quality are used. Another advantage of the paper channel connecting device according to the invention over the conventional device with collars is to significantly reduce pollution. The transfer roller takes over the paper edge control. The device can simply be set up such that the guide track lies at least essentially in one of the channel center axis corresponding, at least substantially horizontal channel center plane, wherein a guided through the paper channel Hüllpapierbahn lies in this horizontal channel center plane or parallel thereto.

Advantageously, the paper channel connecting device comprises a connectable to the Bobinenanschlussende inlet assembly on which a arranged to run the wrapping paper web in the paper channel Kanaleinlaufrolle is arranged to guide the trajectory in accordance with the course of the channel center axis, wherein the inlet assembly in particular a part of a Bobinenvorrichtung forms with the Kanaleinlaufrolle as Bobinenauslaufrolle. Such a Einlaufbaueinheit ensures in a simple manner that the paper channel is aligned with its channel center axis exactly perpendicular to the axis of the inlet roller in the center.

In general, according to the invention, it is also important that a desired orientation defined in the set-up / normal position is set up for the steering device in a defined relationship to the channel center axis. Suitably, the guide head is formed by a structural unit which is connected to the machine connection end of the paper channel such that a virtual steering axis of the steering device in the normal position always coincides with the channel center axis.

A design according to the invention is that the transfer roller, starting from the normal position forming the adjustment normal, in which the axis of rotation of the transfer roller to the channel center axis is held vertically, with variable virtual, emanating from the body center of the transfer roller, directed perpendicular to its axis of rotation about a pivot Channel center axis perpendicular cutting virtual pivot axis is pivotable, which shifts in a controlled fine adjustment of the transfer roller. It is according to the invention important that the steering device is housed in the guide head kleinbauend or forms this and yet an effective pivot radius of the steering device is achieved, which is several times greater than the dimension of the guide head in the longitudinal dimension of the paper channel connecting device. The longitudinal dimension of the guide head is, for example, at most 1/10 of the paper channel length. Advantageously, in the normal position, the size of the virtual pivot radius is at least equal to half the run length of the paper channel connection device and certainly not significantly greater than this run length, which is determined by the distance of the Bobinenanschlussendes the paper channel to the body center of the transfer roller. Advantageously, the pivot axis is set up so that it is only minimally displaceable along the channel center axis, which always cuts it; in other words, the virtual pivot axis remains essentially in its starting position, namely in the position assumed at normal position. In the invention affected control range, with a transverse movement of the body center of the transfer roller on the guide curve in the channel center axis in each case bilateral area B of about 1/1000 mm <B <1/100 mm, but even smaller, can be specified, as a result of the minimum travel of the location of the pivot axis and the size of the pivot radius are quasi stationary.

Preferably, the steering device is set up so that the virtual pivot axis is always in the area of the Bobinenanschlussendes the paper channel, wherein the virtual pivot radius in the normal position in any case is not substantially smaller or not substantially greater than the run length of the paper channel. This limitation or dimensioning is to be understood that the virtual pivot axis should be as close as possible to the run of the reel spool or the device inlet roller. The bobinenseitige channel end is close to these roles approachable.

Advantageously, a design of the steering device of the paper channel connecting device according to the invention consist in that the steering device is formed by a two identical coupling arms four-bar linkage with four hinge axes, that the coupling arms in the state of said normal position in the channel center axis symmetrical arrangement and in the Bobinenanschlussende the paper channel towards converging alignment with extension arms of the coupling arms are arranged, which, the channel center axis intersecting common, determine the position of belonging to the normal position virtual pivot axis that corresponding first arm ends of the coupling arms are hinged by two of the hinge axes of bearing parts, the transfer roller in arrangement be rotatably supported at its roll ends about its axis of rotation between the first arm ends, and that corresponding second arm ends of the coupling arms are articulated by two of the hinge axes to the paper channel.

The coupling arms can be formed for example by coupling rods or corresponding coupling members. Each coupling arm on the one hand steers the axis about which the transfer roller is rotatable, and on the other hand, each coupling arm is articulated to the paper channel. This articulation can be provided directly on a housing of the paper channel or on a body-fixed with him console, for example in the form of a carrier or other corresponding traverse of the guide head.

The first, second, third and fourth pivot axis of the four-bar link are real pivot axes, namely representational components, for example in the form of axle rods, axle journal or the like. The said pivot axes are directed at least substantially parallel to each other. The arrangement can be set up such that the said pivot axes intersect perpendicular to a channel center plane corresponding to the channel center axis, which is aligned in accordance with the running plane of the paper web.

According to one embodiment, the coupling arms diverge at said first arm ends. This achieves the result that the transfer roller is articulated so that it can move on a convex side, directed transversely to the channel center axis and symmetrical to this guide path. Instead, the steering device may also be arranged so that the coupling arms diverge at their second arm ends. With this arrangement, it is possible to achieve a pathway concave, directed transversely to the channel center axis and to this symmetrical guideway.

Of importance are the distances of the pivot axes relative to each other. The distance between the first pivot axis and the third pivot axis is not equal to the distance between the second pivot axis and the fourth pivot axis. The distance between the first and the second pivot axis is equal to the distance between the third and the fourth pivot axis. With these dimensions, the four-bar mechanism has a trapezoidal shape. The steering device is formed in this way by a double rocker, which in its zero or normal position has the shape of a trapezoid with parallel bases and the same, the coupling arms forming legs. Both in the case of the convex guide curve and in the case of the concave guide curve of the transfer roller, the latter is in both cases coincidently pivoted in the same direction in accordance with regulation. The positioning movement of the transfer roller with the virtual pivot radius about the virtual pivot axis is composed of two superimposed movements. On the one hand, the body center of the transfer roller along the guide curve is slightly displaced, and on the other hand, there is a small pivoting of the guide roller about its body center, the transfer roller remains aligned with its axis of rotation parallel to the channel center plane or to the plane spanned by the coupling arms plane.

Due to the virtual pivot axis, which barely displaces during the fine adjustment, the guide curve in the control range deviates only slightly from a circular path with a virtually virtual swing radius to be considered as constant. It has been found that, for a number of applications, the four-bar linkage of the steering device can be arranged such that the virtual swing radius in the zero / normal position of the steering device is at least 2,600 mm and at most 3,400 mm, preferably at least 2,800 and at most 3,200 mm.

An embodiment of the invention consists in an embodiment of the high-speed control, kinetically acting directly on the transfer roller channel control device comprising at least one sensor which is arranged on at least one side of the transfer roller for detecting any directional deviation of the trajectory of Hüllpapierbahn against a trajectory to be observed, at least a control unit for correction control with a control circuit which generates a correction signal in accordance with the web course deviation in comparison with a trajectory corresponding to the controlled control variable, and an actuator with an attacking directly on the transfer reel actuator, the transfer reel in accordance with the correction signal and in accordance with the by adjusted the steering device installed guide to suppress the web running deviation.

In order to provide the essential direct control adjustment of the transfer roller particularly simple and effective, the actuator advantageously comprises a servo motor which is connected via an eccentric with the designed as an eccentric coupling actuator.

A particular embodiment is that the control unit is additionally set up with a positioner control circuit causing a paper width control, which in addition to the correction control of the paper edge control via the actuator and the actuator causes a position control, the one permanently maintained at the transfer roller from the normal course of the Hüllpapierbahn deviating minimum paper web offset causes and regulates. For this purpose, the position control can be set up with at least one control input, which with at least a position control signal is acted upon, which is available through the operation of a connectable to the paper channel connecting device manufacturing machine. According to this configuration, the channel control device is prepared to additionally perform the offset control in addition to the fine correction control. Also, the optionally controlled offset is in the practically minute, above-mentioned order of magnitude of the transverse displacement of the transfer roller relative to the armaments normal measure giving channel center axis. The offset control, however, is a superimposed control, for example in the manner of a control cascade, which operates in addition to the basic control, which is set up and designed as such for compliance with the direction of the transfer fork roll. Because of the minimum control range typical of the invention, the first control accurately executes the directional control even when a minimum lateral offset caused and maintained by the second control on the transfer reel minimizes from the setup normal course given by the processing setpoint generator. differs. The first control remains superordinate, by also enforcing the predetermined normal course, if the at least one position control signal is omitted or ineffective.

In the design with the position control, the channel control device may advantageously be adapted particularly to the manufacturing machine to be operated. This configuration is such that the channel control means of the paper channel connecting means comprises a processing target value sensor associated with a processing position of the wrapping paper web in a processing unit of the manufacturing machine and a processing position sensor detecting the actual processing position, the channel controller setting the amount of paper web offset in accordance with a Control signal of the processing setpoint generator and the maintenance of the paper web offset in accordance with a control signal of the machining position sensor controls.

It may be advantageous that the channel control device comprises at least two web-channel sensors which detect both web edges for position or direction detection of the wrapping paper web in the travel area of the transfer roller on the controlled transfer fork roller. As a result, in particular by the said second If necessary, the control of the paper width control system can be further improved. As sensor, those skilled in the art, for example, mechanical, optical or electrical sensors can be used, the position or direction of a web edge can detect exactly and suitable for the control range of the invention high speed.

The inventively provided second control, namely the position control set for paper width control can be provided particularly advantageous to replace such control in the manufacturing machine or to make it unnecessary there.

Particularly advantageous is the additional position control of the paper channel connecting device set up for operation with a cigarette manufacturing machine that works as a double-strand machine. The paper channel connecting device is then set up to automatically guide a cigarette paper web forming the wrapping paper web, which has twice the cigarette paper width. The double-strand manufacturing machine is equipped with a processing unit forming cutting unit, which is set and set up so that the double-width cigarette paper web is always cut exactly in the middle in two equal web strands. Such a highly accurate center cut can be operated reliably in connection with the paper channel connecting device according to the invention. Even if the paper channel connecting device according to the invention is equipped solely with the first control for paper edge control, a high degree of centering accuracy is achieved for the introduction of the double-width cigarette paper web into the cigarette manufacturing machine, which subsequently also improves the quality or the accuracy of a position control. / Offset control, namely favors and improves paper width control in the manufacturing machine. As described above, another advantage may be that the paper width control for setting and maintaining the cutting position in the cutter is established with the channel control device of the paper channel connecting device. In such an embodiment, the paper width controller is removed from the production machine and provided a setpoint generator.

Fig. 2A und 2B

in Längsseitenansicht und entsprechender Draufsicht eine erfindungsgemäße Papierkanal-Verbindungsvorrichtung in Rüst- und Betriebsposition,

Fig. 3A und 3B

in Draufsicht und Seitenansicht den Führungskopf einer erfindungsgemäßen Papierkanal-Verbindungsvorrichtung gemäß einer ersten Ausführungsform,

Fig. 3C

eine Längs-Draufsicht auf die Papierkanal-Verbindungsvorrichtung der ersten Ausführungsform,

Fig. 4A und 4B

in Draufsicht und Seitenansicht den Führungskopf einer erfindungsgemäßen Papierkanal-Verbindungsvorrichtung gemäß einer zweiten Ausführungsform und

Fig. 4C

eine Längs-Draufsicht auf die erfindungsgemäße Papierkanal-Verbindungsvorrichtung gemäß der zweiten Ausführungsform.

In the above-mentioned and still other advantageous and advantageous embodiments of the invention, subclaims are directed. Features of the design contribute in any combination to the essential solution according to the invention, so that it is not limited to a specific embodiment described. Each sub-feature of an embodiment is to be understood as a sub-feature of further, not shown embodiments. Only particularly expedient and advantageous embodiments and possibilities of the invention will be described with reference to the following description in the schematic drawing illustrated embodiments. Show it

FIGS. 2A and 2B

in longitudinal side view and corresponding plan view of a paper channel connecting device according to the invention in set-up and operating position,

FIGS. 3A and 3B

in plan view and side view of the guide head of a paper channel connecting device according to the invention according to a first embodiment,

Fig. 3C

FIG. 3 is a longitudinal plan view of the paper channel connecting device of the first embodiment; FIG.

FIGS. 4A and 4B

in plan view and side view of the guide head of a paper channel connecting device according to the invention according to a second embodiment and

Fig. 4C

a longitudinal plan view of the paper channel connecting device according to the invention according to the second embodiment.

Unless otherwise stated, identical reference numerals in all embodiments denote identical or similar components, which may nevertheless be designed differently.

An in FIGS. 2A and B illustrated paper channel connecting device 1 according to the invention comprises as a base member a paper channel 11, a guide head 21 forming guide means 2 and a setting means 3. The paper channel connecting device 1 (hereinafter also connecting device) is between a reel device 7 and a cigarette manufacturing machine 8 (hereinafter also manufacturing machine) arranged. The device 1 is set up in order to supply a wrapping paper web 9 required for producing a tobacco product (in the exemplary embodiment a web of double-width cigarette paper) to the production machine 8 in the correct direction and in the correct position. In the illustration according to FIGS. 2A and B the connecting device 1 is equipped with the wrapping paper web 9, which is unwound from a unwinding roller 71 of a reel device 7 with deflection on a deflection roller 72. The wrapping paper web 9 is pulled through the paper channel 11, wherein it is detected and transported by means of a web conveyor, not shown, in the production machine 8.

A bobbin-side bobbin connection end 12 of the paper channel 11 is connected to an inlet assembly 18, which is part of the connection device 1 in the exemplary embodiment. The intake assembly 18 comprises an inlet roller 181 of the connecting device 1, which is aligned with an outlet opening 182 of the inlet assembly 18 such that it holds in the embodiment of the top of the Bobinenvorrichtung 7 obtained wrapping paper web 9 in the center position and orientation to the outlet opening 182. The outlet opening 182 at the same time forms a centering opening for the fixed centering plug-in connection of the reel connection end 12 of the paper channel 11, which is designed accordingly as a plug-in connection element 121. The inlet roller 181 is also provided as a Bobinenauslaufrolle 73.

The paper channel 11 extends with a straight channel center axis 100 which defines a predetermined fixed path of the wrapping paper web 9 in that the channel center axis 100 coincides with the center line of the paper path through the paper channel 11. In the exemplary embodiment, the paper channel 11 has a flat rectangular cross section corresponding to the flat layer of the wrapping paper web 9, wherein the paper channel 11 is formed by an elongated channel housing 10 which is open only on the inlet side and outlet side.

The other machine-side machine connection end 13 of the paper channel 11 is fixed to the housing connected to a bracket 14 which is fixed to the housing part of a housing 140 of a Auslaufbaueinheit 19 of the connecting device 1. The outlet assembly 19 receives the guide head 21 completely. The housing 140 is provided with machine-side connection elements 131, which are designed and set up to produce a centering connection connection of the outlet assembly 19 with the production machine 8. This terminal connection is aligned or centered by the fact that the channel center axis 100 is in a vertical alignment plane in the embodiment, which is spanned by the channel center axis 100 and the central direction axis 861 of a central inlet path 86. Connection counterparts 862 on the manufacturing machine 8 are set up and designed for the described centering connection of the connection elements 131. Always the connection connection can be produced so that the channel center axis 100 comes to lie in the alignment of an inlet path of the manufacturing machine.

The guide head 21 is in the channel center axis 100 corresponding longitudinal dimension of the connecting device 1 in short-term in relation to the channel length. The guide head 21 includes, as will be described in more detail, a steering device 5, which is equipped as part of the actuating means 3 with a freely movable from a normal position N0 transfer roller 4. The normal position N0 is essential to the invention defined in that a zero or base orientation of the steering device 5 coincides exactly with the channel center axis 100 or coincides in the orientation. Since the channel center axis 100 coincides with the center line of the predetermined web travel path formed by the connecting device 1, a normal course N of the wrapping paper web 9 is thereby defined by the paper channel 11.

The adjusting means 3 further comprises a corresponding to the Stellbewegbarkeit the transfer roller 4, the lateral position and each transverse running of the wrapping paper web 9 in the web drain region of the transfer roller 4 and for correction control a cross-run with fine control counteracting channel control device 6. This includes a base control or first control called control, set up is, in order to completely edge-free a paper edge control, so free from each Track edge load to perform automatically. The paper edge control is determined by detecting and suppressing any crossover of the wrapping paper web 9 in the web run area of the transfer roller 4 in the setup state of the paper channel connecting device having the channel center axis 100 as the control base of the channel controller 6, so that the channel center axis 100 is a setting standard for the in-line guide the connecting device 1 position determining and directional, the channel center axis 100 corresponding normal course N of the wrapping paper web 9 forms.

To the paper edges letting paper edge control, it is important according to the invention that the channel control device 6 is set up with an actuator 63, which acts directly, namely free of steering or pegs on the transfer roller 4 to the adjusting movement required for fine control with for the purposes of the invention Control speed and fine action to perform. The channel control device 6 builds with conventional electronic control and components and also with the actuator 63 and associated parts spatially small, so that they can be readily attached to the machine-side end of the paper channel 11 on the console 14 or a housing and the size of the guide head 21st stays small.

The steering device 5 is articulated on the one hand to the housing 14 fixed to the paper channel 11 console and on the other hand it directs the transfer roller 4, which formed with the normal or zero position Einstellnormal on a transversely to the channel center axis 100 directed and symmetrical to this guide curve K. is freely movable.

In the embodiment of FIGS. 2A and B the channel control device 6 comprises a second control for paper width control. This control is not mandatory but is particularly advantageous for operation, for example, of a cutting unit 85 of the manufacturing machine 8. For this purpose, the channel control device 6 comprises a processing setpoint generator 64 associated with the processing unit 85 and a processing position sensor 65 detecting the actual processing position of the wrapping paper web 9 in or in the vicinity of the processing unit 85. These elements of the channel control device 6 are arranged and configured such that the width of the wrapping paper permanently to a precise tool the processing unit 85, so for example set to a cutting blade and held by regulation permanently in this position. In addition to the paper edge control, the channel control device 6 performs the function of paper width control, controlling the amount of paper web offset on the processing unit 85 in accordance with a control signal of the machining target 64 and maintaining the paper path in accordance with a control signal of the machining position sensor 65.

In Fig. 3A to C a first embodiment of a guide device 2 is shown, as for example, part of the paper channel connecting device according to the invention according to FIGS. 2A and B can be. In order to simplify and clarify the illustration, the guide device 2 is described with a wrapping paper web 9 already inserted into the paper channel 11. The wrapping paper web 9 runs in the representations of FIGS. 3A and B from right to left in direction 90.

The guide device 2 or the guide head 21 is shown in the calibrated on the channel center axis 100 of the paper channel 11 normal position N0. The centerline 900 of the wrapping paper web 9 coincides with the channel center axis 100. In the running direction 90, the wrapping paper web 9 is guided without contact under a housing 14 fixed to the paper channel console 14, which is directed perpendicular to the channel center axis 100. In the direction 90 behind the console 14, the wrapping paper web 9 is located at the bottom of a transfer roller 4.

The transfer roller 4 is rotatably mounted about its axis of rotation 40, which is held by the channel control device 6 in the illustrated normal position N0 perpendicular to the channel center axis 100. The wrapping paper web 9 should lie in the embodiment in a horizontal plane corresponding to a horizontal median plane of the paper channel 11. By means of the transfer roller 4, the paper web running direction 90 of the wrapping paper web 9 is deflected from the horizontal course in a vertical course by entering position and direction exactly in an inlet path of a manufacturing machine, if, as in the Fig. 2A to B described, the paper channel connecting device 1 is firmly and immovably connected to its paper channel 11 in setup position. According to FIGS. 3A and B are, in so far deviating from the execution according to FIGS. 2A and B arranged directly on the machine connection end 13 of the paper channel 11 connecting elements 131 which are formed for centering aligned attachment to the manufacturing machine 8. The connection elements 131 can be, for example, plug-in parts or otherwise a centered seat in associated receptacle of the production machine 8 forming flange elements or the like. Connecting elements which are stuck in the set-up position. Similarly, the paper channel 11 is fixed to the other, the Bobinenanschlussende 12, in the embodiment according to Fig. 3C at a Einlaufbaueinheit 18, as to FIGS. 2A and B has been described. An associated inlet roller 181 can also form a Bobinenauslaufrolle 73.

The transfer roller 4 is connected to the console 14 via two coupling elements forming coupling arms 51. The ends of the coupling arms 51 have pivot joints, the pivot axes A1, A2, A3, A4 are directed perpendicular to the horizontal channel center plane and perpendicular to a plane parallel thereto, which is spanned by arm axes 510, on the one hand the pivot axes A1, A2 and on the other the pivot axes A3, A4 intersect and are shown to Bobinenanschlussende 12 out in extension.

By means of the pivot axes A1, A3 to first, in Fig. 3A to C Machine-side arm ends 501, the coupling arms 51 are hinged to bearing parts 48, which store the transfer roller 4 about the rotation axis 40 rotatably with not shown axial bearing. By means of the pivot axes A2, A4 on the other side of the second arm 502, the steering device 5 is articulated to the paper channel console 14.

According to execution of Fig. 3A to C is the distance d 1 of the pivot axes A], A3 greater than the distance d2 of the pivot axes A2, A4. The distances of the pivot axis pairs A3, A4 and A1, A2 are the same. It can be seen that a four-bar linkage in trapezoidal shape is formed with the two coupling arms 51 that are the same by the matching joint distances d3, d4. The coupling arms 51 are in the state of the illustrated normal position N0 in to the channel center axis 100 symmetrical arrangement. The extending in extension of the coupling arms 51 Armachsen 510 intersect, as in Fig. 3C can be seen, the channel center axis 100 together and thereby determine the Position of a normal position N0 belonging virtual pivot axis VA. At their first arm ends 501, the coupling arms 51 diverge.

In Fig. 3C is a symmetrical to the channel center axis 100 guide curve K shown, according to the body center 41 of the transfer roller 4 moves when the transfer roller 4 is deflected by the steering device 5 in the left or right direction to the channel center axis 100. This adjusting movement is extremely small in the control range which is minimal for the paper channel connection device according to the invention, the control range B, in each case for the deflection to the left and to the right, being approximately of the order of 1/1000 mm <B <1/100 mm and smaller , In the Fig. 3C Guide curve K shown so does not reflect the real control range, but is only reproduced for representation in excess.

In the mentioned control range, pivoting of the transfer roller 4 takes place with a virtual pivot radius VR. In the illustrated normal position N0, the virtual swing radius VA is defined as the distance of the body center 41 of the transfer roller 4 to the pivot axis VA defined by the intersection of the extended arm axes 510, as shown in FIG Fig. 3C is shown. This virtual pivot axis VA corresponds to a virtual steering axis 500 of the steering device 5.

The divergence of the bobbin-side arm ends of the coupling arms 51 is designed so that the virtual pivot axis VA is at a great distance from the body center 41 of the transfer roller 4. In other words, the paper channel 11 is large in relation to the corresponding head dimension of the guide head 21, for example, at least ten times and quite possibly twenty times and more. This is important for the paper channel connecting device according to the invention, since the small-sized guide head 21 disappears at the machine-side channel end 13 under the production machine 8, wherein the paper channel 11 in fairly large length and on this route free of adjusting the protected connection path of the wrapping paper web 9 between the Bobinenvorrichtung 7 and the manufacturing machine 8 forms. Suitably, the paper channel consisting of at least two channel elements, as is not shown, may be variable in length or have different lengths.

The closer the virtual pivot axis VA is brought to the inlet roller 181 or the reel spool 71, the more optimally the positioning behavior of the transfer roller 4 in the minimum control area will be optimal. In Fig. 3C is the size VR of the virtual pivot radius VR not significantly greater than the running length LL of the connecting device 1. This run length LL is to illustrate the invention by the distance of the body center or the body center 41 of the transfer roller 4 to the Bobinenanschlussende 12 of the paper channel 11 defined. Due to the compact design of the guide device 2 according to the invention, the running length LL and the channel length KL are also of the same order of magnitude in the case of the aforementioned large channel length. In the embodiment according to Fig. 3C is the run length LL slightly larger than the channel length KL.

If the position of the transfer roller 4 is changed by minimal adjusting movement, then the virtual pivot axis VA shifts minimally or the virtual pivot radius VR changes its length minimally. The effective at the minimum positioning deflection virtual pivot radius VR is defined to illustrate the invention by a line that is perpendicular to the axis of rotation 40 in the center of the body or the body center 41 of the transfer roller 4 as perpendicular bisector 40 and the channel center axis 100 in a variable virtual, namely the corresponding change in position of the virtual pivot axis VA defining intersection, intersects, wherein the distance of the body center 41 to the intersection represents the virtual pivot radius VR. It is emphasized that the change in the virtual variables (virtual pivot axis VA, virtual radius VR) in the control range according to the invention is so minute that these variables can be considered quasi-stationary.

In the embodiment of Fig. 3C is the guide curve K path-wise curved convexly. The adjusting movement of the transfer roller 4 are based on two superimposed movements. Firstly, the body center 41 migrates minimally in accordance with the guide curve K, and secondly, the transfer roller 4 undergoes a slight rotation about the axis A1 to A4 parallel to the axis 410, which passes through the body center 41 of the transfer roller 4, the transfer roller 4 on the respective side of the adjusting movement when deflecting, with its roller end slightly receding towards the Bobinenanschlussende back, slightly outwardly adjusted.

The channel control device 6 comprises, as in Fig. 3A to C illustrated, a transfer side arranged on the transfer roller 4 transfer roller sensor 61, which detects any directional deviation of the set and aligned with the channel center axis 100 normal course N of wrapping paper web 9 of the normal paper web running direction 90. It also detects any directional deviation of the trajectory of the wrapping paper web 9 from a permanently regulated directional deviation of the wrapping paper web 9 from a desired slight nominal offset. For this detection function, the channel control device 6 is equipped with a control unit 69 for correction control. The control unit 69 controls an actuator 63 of the channel control device 6. The actuator 63 is connected by means of an actuating element 631 directly to the one end of the transfer roller 4, namely in the embodiment with a bearing part 48 of the axial bearing of the transfer roller 4. In the exemplary embodiment, the actuator 63 comprises a servomotor, which via an eccentric 62 with the eccentric coupling designed actuator 631 is connected. This arrangement is particularly advantageous for the direct transfer of the adjusting movement to the transfer roller 4.

The channel control device 6 according to Fig. 3A to C also includes a position control circuit 691, to which a control input 68 belongs. The position control circuit 691 forms, in addition to the correction control executing the paper edge control, offset control for permanent, regulated paper width adjustment. Thus, a processing setpoint generator 64 can be connected to the control input 68, as shown for example in FIG FIGS. 2A and B has been shown and described.

FIGS. 4A to 4C illustrate a second embodiment, which differs from the first embodiment according to Fig. 3A to C characterized in that the coupling arms 51 diverge at their second arm ends 502. Therefore, only the resulting differences of the connecting device 1 according to Fig. 4A to C relative to the connecting device 1 according to Fig. 3A to C described.

In the four-bar linkage, the transfer roller 4 is arranged on the side facing the reel end 12 between the pivot axes A1 and A3, which have a smaller distance d1 than the distance d2 of the pivot axes A2, A4. On the other hand, the cross-member 14 fixed to the housing with the paper channel 11 forms an element arranged on the outer machine-side channel end, on which the second arm ends 502 are articulated with the pivot axes A2, A4 at a distance d2.

The arrangement according to Fig. 4A to C causes a guide curve K, which is shown again in excess, runs concave on the outlet side. Nevertheless, the transfer roller 4 moves at deflection, slightly rotating about the pivot axis 410, as in the first embodiment with its roller end receding towards the machine connection end. The channel length KL, which is relatively large as described above, is greater than the run length LL. Incidentally, the same applies to the embodiment of Fig. 3A to C description made to the embodiment of the Fig. 4A to C to.

Claims (17)

Paper channel connecting device (1) of the tobacco processing industry, adapted for producing and adjusting the connection of a wrapping paper web (9) by means of Bobinenauslaufrolle (73) dispensing Bobinenvorrichtung (7) with a wrapping paper web (9) by means Maschineneinlaufrolle (83) receiving them to Hulls of a tobacco product processing manufacturing machine (8) comprising a Hüllpapierbahn (9) passing, straight channel center axis (100) having paper channel (11) with a bobbin-side Bobinenanschlussende (12) and a machine-side machine connection end (13) and one with this machine connection end (13 ) associated guide means (2) which is formed by a guide head (21) in its the channel center axis (100) corresponding dimension is in short-term relative to the length (KL) of the paper channel (11) and one the Hüllpapierbahn (9) laxative around a rotation axis (40) rotatable transfer roller (4) and an actuating means (3) acting on the wrapping paper web (9) for lateral guiding limitation, which adjusts the lateral position and the paper web running direction of the wrapping paper web (9) on the transfer reel (4), wherein on the transfer reel (4) a transverse running of the wrapping paper web (4) 9) is suppressed when the paper channel (11) in the connection state between the bobbin device (7) and the production machine (8) is fixedly arranged and aligned in the desired setup position, characterized in that the transfer roller (4) as part of the actuating means (3) an adjusting element which, for the controlled transverse displacement of the wrapping paper web (9) exclusively at the end with the roller running surface and the web edges releasing on the wrapping paper web (9) acts, that the adjusting means (3) further at the machine connection end (13) of the paper channel (11 ) hinged automatic steering device (5) completely within the guide head ( 21) is arranged and the transfer roller (4) with a degree of freedom on a transversely to the channel center axis (100) directed and symmetrical to this guide cam (K) adjustable articulates, and that the actuating means (3) also according to the Stellbewegbarkeit the transfer roller (4) lateral position and each transverse running of the wrapping paper web (9) in the web discharge area of the transfer roller (4) comprises a channel control device (6) which detects and counteracts transverse control with fine control, which acts directly on the transfer roller (4) for adjusting the lateral position and suppressing the transverse movement, the channel center axis (100) acting as the control base of the channel control device (6 ) an adjustment normal for a in the paper channel connecting device (1) position determining and directional, the channel center axis (100) corresponding normal course (N) of the wrapping paper web (9) and the channel control device (6) the steering device (5) in a in alignment with the channel center axis (100) coincident normal position (N0) to maintain the normal course (N) can hold. Paper channel connecting device according to claim 1, characterized in that the paper channel connecting device (1) connectable to the Bobinenanschlussende (12) Einlaufbaueinheit (18), on which a run-in for the wrapping paper web (9) in the paper channel (11) arranged Kanaleinlaufrolle (181) is arranged, which is aligned to guide the trajectory in accordance with the course of the channel center axis (100), wherein the inlet assembly (18) in particular forms a part of the Bobinenvorrichtung (7) with the Kanaleinlaufrolle (181) as a Bobinenauslaufrolle (73) , Paper channel connecting device according to claim 1 or 2, characterized in that the guide head (21) by a structural unit (19) is formed, which is connected to the machine connection end (13) of the paper channel (11) such that a virtual steering axis (500). the steering device (5) in the normal position (N0) always coincides with the channel center axis (100). Paper channel connecting device according to one of claims 1 to 3, characterized in that the paper channel connecting device (1) comprises a paper channel, which consists of at least two channel elements and is variable in length. Paper channel connecting device according to one of claims 1 to 4, characterized in that the fine control of the channel control device (6) for bringing about minimum adjusting movement of the body center (41) of the transfer roller (4) transversely to the channel center axis (100) in any case in the order of 1 / 1000 to 1/100 mm and smaller. Paper channel connecting device according to one of Claims 1 to 5, characterized in that the transfer roller (4), starting from the normal position (N0) forming the setting normal, in which the axis of rotation (40) of the transfer roller (4) to the channel center axis (100 ) is held vertically, with variable virtual, from the body center (41) of the transfer roller (4) outgoing, perpendicular to its axis of rotation (40) directed pivot radius (VR) about a channel center axis (100) perpendicularly intersecting virtual pivot axis (VA) is pivotable in the normal position (N0), the size of the virtual pivot radius (VR) at least equal to half the run length (LL) of the paper channel connecting device (1) and at least not significantly larger than this Run length (LL), which is defined by the distance of the Bobinenanschlussendes (12) of the paper channel (11) to the body center (41) of the transfer roller (4) is determined. Paper channel connecting device according to claim 6, characterized in that the virtual pivot axis (VA) in the region of the Bobinenanschlussendes (13) of the paper channel (11), wherein the virtual pivot radius (VR) in the normal position (N0) in any case not substantially smaller or not is significantly larger than the run length (LL) of the paper channel (4). Paper channel connecting device according to claim 6 or 7, characterized in that the steering device (5) by a two identical coupling arms (51) comprehensive four-bar linkage with four hinge axes (A1, A2, A3, A4) is formed, that the coupling arms (51) in the state of said normal position (N0) in the channel center axis (100) symmetrical arrangement and in the Bobinenanschlussende (12) of the paper channel (11) towards converging alignment with extension of the coupling arms (51) imaginary arm axes (510) are located, the channel center axis (100) intersecting, the position of the normal position (N0) belonging virtual pivot axis (VA) determine that mutually corresponding first arm ends (501) of the coupling arms (51) are articulated by two (A1, A3) of the articulation axes to bearing parts (48) which position the transfer roller (4) in the arrangement between the first arm ends (501). at their roll ends rotatably support about its axis of rotation (40), and that corresponding second arm ends (502) of the coupling arms (51) by two (A2, A4) of the hinge axes to the paper channel (11) are articulated. Paper channel connecting device according to claim 8, characterized in that the coupling arms (51) diverge at their first arm ends (501) (Fig. 3). Paper channel connecting device according to claim 9, characterized in that coupling arms (51) diverge at their second arm ends (502) (Fig. 4). Paper channel connecting device according to one of claims 6 to 10, characterized in that the virtual pivot radius (VR) in the normal position (P0) of the steering device (5) is at least 2,600 mm and at most 3,400 mm, preferably at least 2,800 and at most 3,200 mm , Paper channel connecting device according to one of claims 1 to 11, characterized by the channel control device (6) comprising at least one sensor (61) on at least one side (49) of the transfer roller (4) for detecting any directional deviation of the trajectory Hüllpapierbahn (9) is arranged opposite to a trajectory to be observed, at least one control unit (69) for correction control with a control circuit which generates a correction signal in accordance with the web running direction deviation in comparison with a control variable corresponding to the path to be observed, and
an actuator (63) with an actuating element (631) acting directly on the transfer roller (4), which adjusts the transfer roller (4) in accordance with the correction signal and in accordance with the guidance established by the steering device (5) to suppress the deviation of the running direction. Paper channel connecting device according to claim 12, characterized in that the actuator (63) comprises a servo motor, which is connected via an eccentric (62) designed with the eccentric coupling actuator (631). Paper channel connecting device according to claim 12 or 13, characterized in that the control unit (69) is arranged with a position control circuit (691) which effects a position control via the actuator (63) and the adjusting element (631) in addition to the correction control, the one on the transfer roller (4) permanently maintainable, from the normal course (N) of the wrapping paper web (9) deviating minimum paper web offset causes and regulates. Paper channel connecting device according to claim 14, characterized in that the position control with at least one control input (68) is arranged, which can be acted upon by at least one position control signal, by the operation of a to the paper channel connecting means (1) connectable to the production machine (8) Available. Paper channel connecting device according to claim 14 or 15, characterized in that the channel control device (6) of the paper channel connecting device (1) to a processing position of the wrapping paper web (9) in a processing unit (85) of the manufacturing machine (8) associated processing setpoint generator (64) and an actual processing position detecting processing position sensor (65), wherein the channel control device (6) the degree of paper web offset in accordance with Control signal of the processing setpoint generator (64) and the maintenance of the paper web offset in accordance with a control signal of the machining position sensor (65) controls. Paper channel connecting device according to one of claims 1 to 16, characterized in that the paper channel connecting device (1) is designed for the automatic guidance of a wrapping paper web (9) forming cigarette paper web having double cigarette paper width.

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