DE2240819A1 - DEVICE FOR SUPPORTING THE CIGARETTE STRAND IN THE AREA OF THE CUTTING DEVICE IN STRANDED CIGARETTE MACHINES - Google Patents

Description

Patent attorneys

Dipl. Ing F. Weick man. ^ ''

DIpI. ing. H. Weickmann, DIpI. Phyj. Dr. K. Flncke

Dipl.'lng. FA Weickmann, DIpI. Cham. B. Huber
8 Munich 27, MÖhfstr. 22nd

AMF INCORPORATED, V / hite Plains, Hew York, V, St.A.

¹¹ Device for · supporting the cigarette rod '· ·. ". In the .area of the cutting device in' rod cigarette '·'machines". ·. '-'. '. ■ "■ · '. ·''■.·'

^/ The invention relates to a 'provision' for. Untörsttttzuhg ■ ·. of the cigarette strand in the area of the cutting device in strand cigarette machines, with two vertical, axially parallel, eccentric, rotatably mounted. Discs, which are interconnected by parallel handlebars ·. ■ geared coupled and revolving, drivable, v / obei in the one disc (support disc) ^v several ₄ üq.uiaiißulilr - arranged on the same pitch circle, channel-shaped to the

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overlying cigarette lane open, parallel to it, provided with a transverse slot for the passage of the cutting knife and each connected to a link bracket so that it cannot rotate Cutting tubes protruding about axes parallel to the disk axes are rotatably mounted, and these parallel to themselves even together with the carrier disk on an approximately tangential to the cigarette rod path below the same horizontal orbit, moving cutting tubes in the cutting area with strand speed and in the same direction as the cigarette * run and reach under this with the cutting frequency.

A device of this type is from the German Offenlegungsschrift 1,632,213 known. In this training there are no other guide means apart from the handlebar straps provided for the cutting tubes so that this one is accurate circular, tangential to the cigarette rod path ■ Describe orbit. As a result, the cigarette rod becomes on a very short section, practically only at the point of tangential contact of the circular · '". Cutting tube with the straight line of cigarettes ^. gripped under the web and supported during the cutting area, i.e. the longitudinal section of the cigarette rod path in which the son's oath knife with the cigarette rod in the Intervention is significantly longer.

, From the German Offenlegungsschrift i. 532.23.4 iat a. . Cutting device for string cigarette machines "known,

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in which the rotatable and possibly also radially moveable on a circumferential carrier are guided in the cutting area parallel to the cigarette rod path. In a first embodiment, the cutting tubes are non-rotatably connected to the planetary gears of a planetary gear, the sun gear of which coincides with the carrier axis of rotation ™ '. The planet gears rotate in such a way that the '... Cutting tubes are guided parallel to themselves »Dieee '. Execution is structurally complex and particularly TBEI the high speeds in today strand cigarette machine · a large Yerschleiss exposed to the disruptions caused due to the gear Games * 'In addition, the cutting tubes move in this case on a circular orbit and to · the · ■ cigarettes tracts The parallel section of the cutting tube path is again limited only to the point of tangential contact between the cutting tube path and the cigarette rod path.

In a second embodiment of the aforementioned German laid-open specification 1.532.214, the rotatable ' as well as radially displaceable on the circumferential carrier. ' stored Schnei'dtuben in the cutting area by a feat » standing guide curve about secantal to its circular orbit guided on a longer path section parallel to the cigarette rod path. The cutting tubes are guided by the guide curve in such a way, e.g. in two points lying one behind the other in the direction of rotation, that they are not constantly parallel to themselves or

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move to the cigarette rack, but always maintain a position tangential to its orbit and only assume a position parallel to the cigarette rack in the cutting area. As a result, when entering and leaving the cutting area, the cutting tubes are positioned at an angle to the cigarette line and briefly enter the line with their front or rear bottom edge. The cutting tubes thus beat the Zigarettenetrang each arriving in ^the: of cutting area and upon departure from the cutting area. These blows can impair the proper guidance of the cigarette rod and even cause it to be damaged. .

This disadvantage is avoided in the device of the type mentioned or according to the German Offenlegungsursehrift I.632.213 by the constant guidance of each cutting tube parallel to ai ch aelbat with the help of the eccentric discs coupled to one another by handlebars, but the known device has other oroits The disadvantage already mentioned is that the section in which the cigarette rod is gripped under and supported by the cutting tube is limited to the tangential point of contact between the circular orbit of the cutting tube and the cigarette rod path.

Task dor !! Winding int co, the above disadvantage ο the Muhur bpkfiimloji devices ku bohiVhon and oin «Ver

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for the Unfcorotutz dos cigarette atrangos im. Berqich the cutting device in Strangzi garet; to create boiimaocliinon _r in the dia Oclmeidtubcn both continuously parallel to "I 'Beibat, and in the Schnoid area on a longer section or over the entire length of this cutting area parallel to the cigarette rod.

This object is achieved according to the invention with a device of the type described at the outset, in which the cutting tubes are mounted so as to be movable radially to the axis of rotation of the carrier disk and are guided in the cutting area by a fixed guide on a straight movement path section parallel to the cigarette rod = the design of the device described at the beginning the constant guidance of each cutting tube is guaranteed parallel to itself. Consequently, also the damaging blows to the ¹ cigarette rod when entering the cutting tubes into the cutting area and upon departure from the cutting area safely avoided. Due to the associated guidance of the cutting tubes, which can be moved radially in the carrier disk, on a straight movement path section in the cutting area parallel to the cigarette rod path, the cigarette rod is at the same time gripped underneath and securely trimmed over a sufficiently long distance or, «This means that a flawless, gentle» cannot be achieved with the previously known devices © and

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Support of the Zignrettonstrangeij in the Boreich of the cutting device achieved.

To the movement dur radially displaceable in the carrier disk stored cutting tubes in a simple manner possible permit, the handlebar brackets assigned to the cutting tubes and connected to them in a rotationally fixed manner can be of limited length. be designed to be variable. A particularly useful one The solution in this regard results from the fact that the cutting tubes are arranged and connected to them in a rotating post Handlebars have a long slit on * have, in which a pivot pin fastened in the other disk (FUhrungsschoibe) engages in a longitudinally displaceable manner. the Assembly of the device can be facilitated by the fact that the cutting tubes assigned and with these rotatably connected handlebar straps are fork-shaped. The adjustment of the device, in particular the setting of the required equal lunge of the handlebars and the coordination of the different ones Movement sequences can also be facilitated by the fact that they are attached to the guide disk Hinge pin of the link plates assigned to the cutting tubes in the radial direction to the axis of rotation of the guide disk in this slidably guided and e.g. with the help of a screw gear or the like. are adjustable

According to a further feature of the invention are the disks duroh a first, only for the transmission of power

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serving handlebar bracket set and a second, -den Cutting tubes assigned to each other, only used to maintain the same set of Lenlcer tabs coupled to one another " As a result, the handlebar brackets assigned to the Selineidtubes are grounded are relieved of the power transmission for the gear coupling of the two disks and can only to solve their actual task, which consists of holding the Sclineid tubes in parallel designed and trained.

The stationary guide, which led the cutting tubes in the cutting area on a straight movement path section parallel to the cigarette rod path, can be designed and arranged as desired. In a zv / angular embodiment of the invention, this guide is designed as an at least circular segment-shaped curved path with a flat guide section which is flattened in the cutting area in the form of a secant and parallel to the cigarette rod path. Particularly favorable and structurally simple _3, especially with regard to the necessary maintenance of the rotatability of the cutting tubes in relation to the carrier disk, an embodiment has proven in which the pivot bearing, which is radially displaceable in the carrier disk, is pressed against the cam track by spring force and from each cutting tube this is supported with the interposition of a Tustroll β, Hacli another Morkmnl dor invention can use the ijisiieoondoro for äan installation in the

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Rod cigarette machine important dimensions of the device can be significantly reduced by the fact that the cam path is a circular cam that is coaxial with the carrier disk formed with a flattened guide section parallel to the cigarette rod path and inside of the pitch circle of the cutting tubes, i.e. inside the orbit described by the cutting tubes.

An exemplary embodiment of the invention is shown in the drawing ' shown. Show it:

1 shows a device according to the invention in a front view, partly in cut. . ·

Fig. 2 is a vertical section naph of the line II-II of Fig. 1.

Fig. 3 shows a horizontal cross section along the line IH-III of Fig. 2, on a larger scale.

Fig. 4 is a partial view according to the arrows IV-IV of the Pig. 2, on a larger scale.

That of the cutting device, not shown, of a straight cigarette machine associated device intended to support the cigarette rod in the cutting area consists of a housing S, on which a horizontal pin A3 is attached protruding. At the free end

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this pin A3 is eccentrically ^{attached to an axially parallel, 1} narrower pin A2 protruding. A guide disk 3 is rotatably mounted on the pin A3, which is provided with a toothing 15 and can be driven in a rotating manner by a gearwheel 16. On the other hand, a carrier disk 2 is rotatably mounted on the pin A2, which carries several cutting tubes 1 on its side facing away from the guide disk 3. . '.

The guide disk 3 and the carrier disk 2 are below. geared to each other by two sets of handlebars 4 and 6. The handlebar straps 4 and 6 are arranged equiangularly in an alternating order. The link brackets 4 are used to transmit the force from the driven guide disk 3 to the carrier disk 2 and are supported at one end with a pivot pin 103 in the guide disk 3 and at the other end with a pivot pin 102 in the carrier disk 2. The distance between the pivot pins 102 and 103 of the link plates 4 is equal to the eccentricity of the pivot pins A2, A3, ie corresponds to the distance between the axes of rotation XX and YY of the two disks 2 and 3 »· The pivot pins 102 and 103 of the link plates 4 are ^: respectively on the same pitch circle of the assigned disc .... 2 or 3. The link brackets 4 are parallel to each other. «; directed. The guide disk 3 and the carrier disk. 2 therefore rotate synchronously & Ji. in the same direction and · ■■ with the same rotational speed, the handlebars 4 rotating parallel to themselves. . '· ".-.,

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The link plates 6 assigned to the cutting tubes 1 are in principle in the same way as the force-transmitting ones Handlebar tabs 4 are formed, but have the main task of keeping the cutting tubes 1 parallel to themselves lead. Each handlebar bracket 6 is closed at one end the axes of rotation X-X and Y-Y of the disks 2 and 3 parallel pin 5, which is rotatable in a LagerhtQ.se 105 is mounted in the carrier disk 2. The other end of the handlebar bracket 6 is fork-shaped. In that thereby in the handlebar bracket 6 formed longitudinal slot 106 is a Block 8 mounted so as to be longitudinally displaceable, into which a pivot pin 7 fastened to the guide disk 3 engages in a rotatable manner. As a result, the length of the handlebar straps 6 can be varied to a limited extent. The one to match the kinematic Conditions required length of the link lugs 6, i.e. the distance between the axes of the pin 5 and the The pivot pin 8 can be adjusted by adjusting the pivot pin 8 in the guide disk 3. To this Purpose of the pivot pin 8 is attached to a screw nut 12, which in radial to the axis of rotation Y-Y of the guide washer 3 directional guides 13 displaceable, however Is guided non-rotatably and can be adjusted by an associated adjusting screw 14. The nut 12 a pointer 112, which is associated with an Ausson . The scale G provided on the guide disk 3 and observable through an opening F in the housing S interacts. With the help of the screw gear 12,13,14 and the associated Display device 112, G can display the axes of the

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Hinge pin 8 of the link straps 6 individually, but with the required accuracy on the same pitch circle der.Gelenkzapfen 103 of the link plates 4 is set will. . ·

The journals 5, which are rotatably mounted in the carrier disk 2, of the link lugs 6 assigned to the cutting tubes 1 are arranged equiangularly on the same pitch circle as the pivot lugs of the link brackets 4. In contrast to the pivot pins 102 of the link brackets 4, however, the pins 5 of the link brackets 6 are at the same time also radially displaceable, mounted in the carrier disk 2. For this purpose, the bearing bushes 105 of the journals 5 de have a radially outer guide head 205 which, together with the relevant bearing bush 105, can be displaced in guides 405 directed radially to the axis of rotation XX of the carrier disk 2 in a corresponding housing 305 attached to the carrier disk 2 is led. In the center of the journal 5, a feeler roller 10 is freely rotatably mounted, which is arranged in a corresponding interruption of the bearing bush 105 and cooperates with a stationary cam 9, which is fastened to the free protruding end of the pivot A2 of the carrier disk 2 and is coaxial with it case 305 arranged on the Ftlhrungskopf 205 · acting Peder Il presses the bearing sleeve 105 radially · inwardly toward the axis of rotation XX of the Trägerseheibe and holds the follower roll 10 continuously with the cam disc 9 ¹ into contact. · '. .

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At the front, ie. the handlebar bracket 6 opposite end of the pin 5 protruding from the support disk 2 is each attached a horizontal cutting tube 1. In operation, the cutting tubes 1 rotate together with the carrier disk 2, whereby they are always moved parallel to themselves due to the non-rotatable connection with the associated link lugs 6. The device is arranged in the area of the cutting device of the rod cigarette machine in such a way that the circumferential path of the cutting tubes lies essentially tangential to this path below the horizontal straight path of the cigarette rod B. The cutting tubes 1 are aligned parallel to the cigarette rod B The speed of rotation of the disks 2 and 3 is selected so that the cutting tubes 1 run in the cutting area, ie in the upper part of their orbit at the same speed as the cigarette rod B and in the same direction upward, ie, toward the cigarette rod darttberliegenden B formed open. In addition are provided the cutting tube 1 'a transverse slot 101 FTTR the passage of the cutting knife. _t ■

The stationary cam 9 is circular and has in its upper part, i.e. in the cutting area a flattened, planar pipe section 109 parallel to the cigarette rod B. Through this flattened guide section 109 of the stationary cam disk in connection with the feeler roller 10 and the spring 11, as well as

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In connection with the radially displaceable mounting of the cutting tubes 1 in the carrier disk 2, the cutting tubes 1 in the cutting area are on a straight line to the. ·. ' .Cigarette rod B guided parallel movement path section. In doing so, the individual cutting tubes 1 one after the other support the cigarette B in the cutting area with a frequency corresponding to the cutting frequency and over the entire length of the Schneidberei.chs, ie while the, for example, sickle-shaped cutting knife reaches through the transverse slot 101 of the cutting tubes 1 and cuts through the cigarette rod B. The remaining orbit of the cutting tubes 1 is a circular path. Despite the movement path section parallel to the cigarette rod B, the cutting tubes 1 retain their to the cutting area over their entire orbit, especially when entering the cutting area and when leaving the cutting area ^1; Cigarette rod B parallel position.,

The invention is of course not limited to the exemplary embodiment shown, but are. . ' Within the scope of the general inventive concept, several different solutions are possible, in particular from a structural point of view. Thus, for example, the guide disk 3 and the ... carrier disk 2 can be coupled to one another by a single set of link plates, which are both geared; Power transmission as well as for keeping the longing tubes 1 parallel to each other and are similar to the ones described

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Handlebar tabs 6 can be formed. Instead of the guide washer 3, the carrier disk 2 can be provided with a toothing and e.g. by the gear wheel 16 or by a toothed belt or the like. powered v / earth. The stationary cam 9 does not necessarily need one to be a full circular disc, but can be as circular segment-shaped, in the upper part of the orbit of the cutting tubes 1 arranged curved path are formed, which in the cutting area a flat guide section 109 which is flattened in the shape of a secant parallel to the continuous web of cigarettes

• having. The radial stroke of the cutting tubes 1 inwards in the direction of the axis of rotation X-X of the carrier disk 2 can in this case in the rest of the orbit through Stops will be limited. The adjustment device 12,13,14 The pivot pins 8 attached to the guide disk 3 the handlebar straps .6 may be absent or may also be provided for the corresponding pivot pins 103 of the handlebar straps 4 be. On the other hand, all * of the drawing and the Characteristics that can be taken from the description, including the

/ fitructive details also in any combination be essential to the invention. , ". '

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Claims (9)

PATENT CLAIMS ■ ·. ■ '. V- / 1 \ Device to support the cigarette range in the Boreioh of the cutting device in Stranßzigarettenmn @ ohihon, with two vertical, axially parallel, eccentric, rotatably mounted disks that pass through one another. . ■ ": parallel handlebar brackets are geared coupled and circulating ■ are propulsionbatf, wherein in the one disk (carrier disk.) V several, equiangularly arranged on the same pitch circle, channel-shaped to the cigurette line lying down there ·" · .; open, parallel to it, provided with a transverse slot for the passage of the cutting knife and each non-rotatably connected with a link bracket, protruding to: /. axes parallel to the disk axes are rotatably mounted, '.,. ; and this moved parallel to itself together with the carrier disk on an orbit lying approximately tangential to the cigarette rod path below the same. Cutting tubes in the cutting area at strand speed · ':. and run in the same direction as the cigarette rod and undertake this with the cutting frequency, characterized in that. that the cutting tubes (l) mounted so as to be movable radially to the axis of rotation (XX) of the carrier disk (2) and in the cutting area by a fixed ^: guide (9, 109) on a straight line,. to the cigarette rod (B) parallel movement path section are guided. ·. ^: 2. Apparatus according to claim 1, characterized in that. ; that the handlebar straps (6) assigned to the cutting tubes (1) and connected to them in a rotationally fixed manner are limited in length; are designed to be variable. . . '"..'"" _ .. · ._ '. ■ 309810/0708 3. Device according to claim 1 and 2, characterized in that that the handlebars (6) assigned to the cutting tubes (1) and connected to them in a rotationally fixed manner have a longitudinally oriented slot (106), in which one can be longitudinally displaced on the other disk (guide disk 3) attached pivot pin (8) engages. 4. Apparatus according to claim. 1 to 3, characterized in that that the handlebar brackets (6) assigned to the cutting tubes (1) and non-rotatably connected to them are fork-shaped. 5. Apparatus according to claim 1 to 4, characterized in that the attached to the guide disc (3) Hinge pin (8) assigned to the cutting tubes (1) Handlebar straps (6) guided and displaceable in the radial direction to the axis of rotation (Y-Y) of the guide disc (3) e.g. with the help of a screw gear (12, 14) or the like « are adjustable. 6. Device according to one or more of claims 1 to 5, characterized in that the disks (2, 3) have a first one which is only used for power transmission Set of handlebars (4) and a second, assigned to the cutting tubes (1), mainly for keeping them parallel the same serving handlebar bracket set (6) are coupled to one another. - 309810/0708 7. Device according to one or more of claims 1 to 6, characterized in that the fixed guide for the cutting tubes (1) is at least in the form of a segment of a circle Curved path (9) with in the cutting area I secant · '/ shaped "parallel to the cigarette rod flattened, flat guide section (109) is formed. 8. The device according to claim _1, characterized in that the pivot bearing (105) of each cutting tube (1), which is guided radially displaceably in the carrier disk (2), is pressed against the cam track (9, ΪΟ9) by spring force (11), · .. and is supported by this with the interposition of a feeler roller (10); . . _: 9. Apparatus according to claim 7 and 8, characterized in that the curved path as a circular, to the Carrier disk (2) coaxial cam disk (9) with to the. Cigarette rod path parallel, flattened guide section. (109) formed and inside the pitch circle the cutting tubes (1) is arranged. . v. 30'9810 / Q7Q & Blank page