DE2019529A1 - Device for attaching connecting sheets to pairs of axially aligned cigarettes with a double-length filter piece in between - Google Patents

Description

Patent attorneys Dipl.-Ing. E ¥ eickmann, Dr. Ing.A-Weickmann

Dipl.-Ing. H.Weickmann, DIPL.-PHYS. Dr. K. FiNCKE Dipl.-Ing. F. A. Weickmann, Dipl.-Chem. B. Huber

8 MUNICH 27, DEN

MÖHLSTRASSE 22, CALL NUMBER 48 3921/22

SaHa

AMERIOAU MAÖHIHE & J ¹ OUNDRY OOMPAITY, 261 Madison Avenue, liew York, JT.Y. 1ΌΟ16, V.St.A.

- '- ' J ft ψ ~

Device for attaching connecting sheets to |

Pairing axially aligned cigarettes with an interposed one double length filter piece.

The invention relates to cigarette machines, and more particularly to one Device, the task of which is to double on pairs of axially aligned cigarettes with interposed Mlterstüok Length of connecting sheets to be attached

As is well known, the filter cigarette is the MlterstUek in the Added in a way that a connecting sheet is rolled around, which is coated with adhesive on the inside «The" The connecting sheet rolls around the filter piece and the Ends of the cigarettes attached to both ends of the pilterstüoke so that reliable and sufficient adhesion without air inclusion is achieved at all points.

On the other hand, it has been specially designed to increase emissions the cigarette machine proved to be useful, a pair of cigarettes coming from a cigarette machine with a double-length filter cover in such a way that Place the two cigarettes against both ends of the liltersttlokes, creating an axially aligned group of three

009846/120 2

i 2 -

A cigarette ₉ ® in a double-length filter piece and a second cigarette contain Ia other patent specifications of the applicant, methods and devices are described in order to cigarette groups in a particularly simple manner. ₉ form and under direct ©:? uni continuous use i @ 3? τοπ ier -Zigarettsniaasehln © produced cigarettes from these two rows of Si «garetton are formed in alternating slides _P where" b @ i @ia äöppelijlaagQS filterstüek swi "see each cigarette from the © inen loiJä © laaä i @ E · associated gigarett © of the other Roila © approved

Can main object of the invention is @ _Β ΰ to üexi united in this way Cigarettes @ npaar © n ¥ © rbinduag®blatt qt to such · "bring ^ IASS the Brsiergruppe in eggs Mitt © of the filter piece aiaseinandergeschnitt @ n be ^ am so from each pair win two full Einsein® cigarettes sa «

According to the invention, this © task is solved by a device that © connection fields? on pairs of axially aligned cigarettes with awisQh§ng @ adds © Ji a double-length filter piece "This device w © is1" a roti or © ade drum on ₉ the circumference sw © ik © rresp © ndi © rend © groups of length « loan hip © the Vorsprüngan has _s the ₅ bsabstamdet in the lateral direction from each other ¹ Θΐηα so a Mittelbereioh in the form of narrow a binges on deja Erommelumfang _s whose width is slightly greater ale the length of the filter piece, while the length of Abstandee zivisohen Awei successive lips virtually equals the size of a cigarette. The © Troism ©! let functionally coupled with a cutting mechanism, the connection sheets are separated from a continuous paper web ₉ di © is coated with adhesive on its upper side, the © ge-sohicht with respect to the drum in iem 302? aiQh swis3 © k © na; ei on one aaä Hippen © ¥ © it®3? is dlQ Ss ⁵ QiBaQl isueüi aooli old sineia -'OfeargElisEeeliaaisffitta ge »

0098 4 6/1

couples to a pair of cigarettes for each link sheet to be transferred to the drum with the filter piece attached. Finally, a pneumatic holding device is provided for the cigarettes and the connecting sheet, which interacts with the drum «This device can selectively one after the other in predetermined arc sections of the Drum path are operated, with the exception of at least a portion of the drum path in which the cigarettes and the filter piece with the associated connecting leaves be held between the drum and a stationary surface by the interaction of the drum rotation " and the friction between the group of three and the surface, the group of three between the flank of a rib and the opposite flank of the subsequent rib rolls around its own axis, so that it moves itself into the adhesive Binding sheet wraps. ·

Furthermore, according to the invention, in the area of a further short Arc of drum rotation after the curling area on the Cigarettes and the filter piece by the connector sheet are wrapped, no suction exerted; the structure Rather, it is pressed against the drum by a lever, one end of which is hinged to a fixed pin and of | a spring is pressed elastically against the drum, so that it is the group of three, consisting of two cigarettes and one Filter piece, gripped in the middle of the filter piece in the transverse direction If a group of three has no connecting leaf, the cigarettes fall down in the area of the lever because there is no suction at the holes in the drum o If on the other hand, the cigarettes are provided with a connecting sheet but do not have an interposed filter piece, such cigarettes will also be eliminated because the connecting sheet is not stiff enough and gives under the pressure of the lever, so that the cigarettes fall off the drum.

009846 / 1-202

can be removed even if there is again a suction force on the drum holes is applied, this has no effect on solo cigarettes, which also fall down as rejected cigarettes.

Details of the invention and its advantages emerge from the following detailed description of some exemplary embodiments based on the attached drawings. It ^ specially

Figol is a thematic side view of a device which attaches connecting sheets to pairs of cigarettes with double-length filter stuks attached in such a way, that the pair of cigarettes roll on a fixed concave surface

Pig.2 a section along the line II-II of Pig »1 in an · - whose scale j

Pig. 3 a partially schematic perspective® view the device according to Fig »1 in the Abrollbereioh on the concave Area and in the area of the associated feeler lever for rejecting incomplete or defective ones Pairs of cigarettes

4 shows a longitudinal section along the lines IV-IV of FIG ™ by a drum which according to the invention Verbin ~ attaching duag sheets;

FIG. 5 is a sectional view along the line V-V of FIG. 4; FIG. 6 shows a partial section near the line VI-VI in FIG. 5.

The embodiment of FIGS. 1-3 has a drum 1 on, which look on a fixed cylindrical body 2 rotates freely and airtight, on the circumference of which grooves 102, 202, 302, 4029 502 are provided? these gutters are two-way assigned in such a way and / or spaced at an angle, how öi © s will be described in more detail below *

0098A6 / 1202

The channels are connected to a suction channel 3, the is formed in the cylindrical body 2 · In the suction channel is with the help of a suction device, not shown maintaining a predetermined negative pressure} the connection A suction line 4 is established between the suction channel and the suction device

The drum 1 carries on its circumference two corresponding groups of elongated ribs 5ι which are evenly spaced from one another and are distributed over the entire circumference of the drum λ , a rib spacing not being less than the length of a cigarette circumference. The flanks 105 of these ribs merge into the drum with a curve and a slight incline; The rounding preferably has a radius of curvature which is approximately equal to that of a cigarette cross section.

The drum 1 has between the two groups of ribs 5 a central area in the form of a ring 6. The ring is slightly wider than twice the length of a filter mouthpiece for a cigarette. In the ring is on the drum transports a paper web 7 and a rotating knife 8 which is functionally coupled to the drum 1, f cuts the paper web into sections 9, corresponding to the spacing of the ribs 5 on the drum 1. These sections are held by suction on the ring 6 of the drum 1, the negative pressure being applied to them by the holes 106 of the drum 1 is applied when this Löoher with the suction channel 302 of the cylindrical body 2 are connected

Every »connection sheet becomes <drum 1 of 5 a pair of cigarettes 31, 82 with an interposed double-length filter bag P supplied · The · happens with the help of a transfer θ tr ommtl 10, which is coupled to the drum 1, on

009846/1202

welohe the groups of three S1, F, S2 in a meeting point T after the knife 8, seen in the direction of rotation of the drum 1, transmits. This process takes place in such a way that the filter piece F lies symmetrically on the connecting sheet comes whose outside, where the filter piece rests, has been previously provided with adhesive. In this position stands the filter sheet slightly over the ends of the filter bag F so that there is also a small part of the cigarettes S1, S2 covers, which are at both ends of the filter piece Create F · »

Behind the meeting point T, the negative pressure is also at holes 205 applied, which are provided in the edge regions of the drum 1, which of the two groups of ribs 5 in the transverse direction are traversed, namely the holes are arranged on the planks 105 of the ribs. The suction holds the Cigarettes S1, S2 of a couple stuck, while the Filterstüok F is held by the adhesive on the connecting sheet 9, which in turn is pneumatically attached to the central ring 6 of the drum adheres to the holes 106 due to the suction

The suction channels 102, 202, 302 temporarily end in an area after the meeting point T, based on the rotational direction of the Drum 1, where the group of three St, F, S2 with the associated connecting sheet 9 against the stationary surface 111 of a concave Body 11 snugly This is mounted swinging freely around a pivot 12, with the purpose that it is in a position · 211 can be brought into which it disengages from of the drum 1 is, for example, when the surface 111 is periodic is cleaned. When the surface 111 is in contact with the group of three S1, F, S2, the latter begins on the drum in the space between two successive lips 5 to pollen, ua4 under the combined effect the rotation, the S ^ omasl 1 and the friction of the group of two on the stationary i? ll @ ii® 111 © Messs Aferollen does this

00984671202

Wrap the connecting sheet 9 around the filter piece F and the adjacent ends of the cigarettes S1, S2, and there the Surface of the connecting sheet that is in contact with the cigarettes and the kit er s ttick, previously with an adhesive has been provided, for example by applying a suitable adhesive with an appropriate device, the connecting sheet around the cigarette and the filter is stuck in place. If desired, the concave body 11 a heater may be associated with the surface 111 If it seems useful, heat the adhesive effect of the |

Connection sheet 9 to improve. The relative movement of the group of three S1, F, S2 with respect to the drum 1 during unwinding is such that the group of three starts on the flank 105 of a clan and through the abutment on the opposite flank 105 of the following rib is stopped, the longitudinal edge of the connecting sheet 9 being turned towards the drum 1 «. In this state, the cigarette from the drum 1 is over the end the surface 111 'further pulled, but the suction, which is now restored when the drum passes the suction channel 402, the group of three continues to hold on the drum stuck *

The suction channel 402 can also continue to the meeting point f

R stretch between drum 1 and a transfer drum 13, which cancels the groups of three SI, F, S2, provided with a connecting sheet, and passes them on to subsequent devices , during which the groups of three are detected by a lever 14 which is hinged at one end to a pin 15. The pin is fixedly connected to the machine and a coil spring 16 is wound around it, one end of which is firmly anchored, while the other end presses against the lever 14, to him in the direction

009846/1202

To pivot to drum 1, he ate the groups of three S1, F, S2 mechanically clamped on the drum.

The lever 14 is arranged so that it is a group of three St, F, S2 approximately in the area corresponding to the center of the filter piece F This arrangement has the following purpose: When the drum 1 has a group of three S1, F, S2 with no connecting sheet brings to the lever, the cigarettes S1, S2 fall down unhindered, because no force, neither mechanical

A nooh pneumatic type, it presses against drum 1. if However, there is a pair of cigarettes S1, S2, which is wrapped with a connecting sheet 9, but not an interposed one Filter element F, this pair is also automatically rejected from the production line, since the connection tion sheet alone is not sufficiently rigid that it is deformed by the lever. This causes the cigarettes S1, S2 away from the drum, so that after the suction is applied to the suction channels 502, these cigarettes are not affected by the suction force are detected and fall down as rejected cigarettes. The suction gutter 502 is long enough to hold the group of three to hold the cigarettes with the connecting sheet on the drum until they have completely solidified

P of the connection sheet is guaranteed.

For the groups of three S1, F, S2 that properly start with a Connecting sheets are provided, the lever 14 acts as one simple elastic guide in the space between the End of suction channel 402 and the beginning of suction channel 502.

The lever 14 can also be used to take samples of double cigarettes with a filter plug and a connecting sheet. For this purpose, a pin 114 is attached to the side of the lever 14. A force can be exerted on this pin 114, directly or indirectly, in a suitable manner, which is determined by the

0098A6 / 1202

Overcomes spring 16 exerted Rüokholmoment and thus temporarily lifts the lever from the drum, with one or more Triplets S1, F, S2, completed with a ver ^ - Binding sheet 9, fall from the drum and can be removed for checking.

The modified embodiment shown in FIGS. 4-6 mainly relates to the selectively actuatable pneumatic holding device which is associated with the drum. According to this embodiment, instead of a free-ren drehba- ä, airtightly to the fixed cylindrical body 2 are fastened with the above-mentioned Saugrinnen drum 1, a drum 101 is provided, which has substantially the shape of a hollow cylinder which freely rotatably mounted on a shaft 18th The drum 101 is keyed onto the shaft 18 by means of a keyway 20 and a key 19. The shaft 18 rests in two bearings 21 which are housed in a hub-shaped bushing which protrudes to the side from a fixed part of the machine frame.

Externally, the circumference of the drum 101 has the same shape as that of the drum 1 with two groups of equally spaced ribs 5 and a centrally arranged ring 6 and "with the corresponding suction holes 205 and 106. In the case of the drum 101, however, these suction holes are present with several blind channels 23 »24, .25 in connection, which are bored out in the drum in a longitudinal direction parallel to the axis of rotation of the drum have the same angular spacing as the ribs, eo that for each group of suction holes 106, 205 between two successive ribs around the drum 101 there is a channel in front of each ring .

0098 AB / 120 2

- ίο -.

The openings of these groups of channels are located at one end of the drum 101, against which a sealing ring or a sealing flat disc 26 rests. This disc is provided with slots 27, 28, 29, 30, which have the shape of arcuate cutouts, with the center of the circular arc on the geometric axis of rotation of the drum. The flat sole plate 26 is attached to a metal ring 31 which is provided with slots which correspond to those of the sole plate 26 and are in line with them. The ring 31 seals the end face and is formed in one piece with a chamber 32 of a vacuum distributor which has two separate suction lines 33j 34 (FIG. 5). The first suction line belongs to the slots 27 »28, the second to the slots 29 ₉ 30» Please note, however! the slots 27, 28, which correspond to the channels 23 and the suction holes 106, extend practically on the same circumference and have included a certain angle between them, whereas the slots 29 and 30, although they correspond to the same suction line 34, from each other not only have an angular distance, but also a distance in the radial direction, in such a way that the radius of the outermost circumference of the inner slot is slightly smaller than the radius of the inner edge of the outer slot 29 in relation to the center of the sole plate 26. The slots 29 and 30 correspond to the channels 25 and 24 of the lateral openings 205 of the drum 101. The suction lines 33 »34 are connected to corresponding suction devices via lines 133 and 134»

Through the slot 27 and the associated channels 23 of the drum 101, a suction effect is exerted on the connecting sheet via the suction line 33, namely over the entire arc of the Ber'eiohp where the paper web in the middle ring 6 of the Drum enters ^ to the point where the triplets S1, F, SSÜ with the associated Yerblndungabl & tt 9 temporarily from

009846/1202

the concave body 11 to be engaged in the connecting sheet to roll up. After going through this arc, the suction at slot 28 is restored in the short section between the point where the triplets come free from the concave body 11 to the point where they are gripped by the lever 14.

Note, however, that between the meeting point T and the point at which the triplets ^s is also applied to the cigarette, a negative pressure is transferred to the concave body 11, through the slot 29 of the suction pipe 34 and the associated channels 25 the drum 101. However, this suction does not exist in the subsequent section corresponding to the slot 28, whereby if some groups of three have a filter piece but no connecting sheet, the corresponding cigarettes will fall off because no suction force holds them in place. The filter piece 1 falls after the lever 14, seen in the direction of rotation of the drum 101, because from there up to the meeting point R only a suction force acts on the cigarettes, which through the suction line 34 via the slot 30 and the associated channels 24 of the The drum becomes effective o In the case of cigarette pairs with a connecting sheet, but without a filter piece, the lever 14 serves as an ejector for these cigarette pairs, as was described in the previous example

Finally, in the area behind the meeting point R three slots 35, 36, 37 are provided on the disk 26. These slots are fluted in the radial direction and are arranged at such points with respect to the radius that those of slots 27, 29 and 30 correspond. With. The help of these slits can cause a temporary blowing effect through the ducts 23, 25 and 24 and the openings 105, 106 are exercised, around the drum surface of any particles that are there

009846/1202

can stick to clean and use them for the subsequent process to get ready to roll up «.

In order to achieve a good frontal seal between the drum 11 and the disc 26 su, the disc is slightly against the front of the drum is pressed by means of coil springs 38 which are located between the outer head of the chamber 32 the suction line and a fixed part of the machine frame are clamped. Each such feather is with one Provided screw 39, on which you can adjust the strength of the spring load.

The invention is not restricted to the exemplary embodiments described, but can be used within the scope of the inventive concept experienced numerous, especially constructive, modifications; it can also apply to other areas outside of the Cigarette production are used

0098A6 / 1 202

Claims (5)

Patent claims Device for attaching connecting sheets to pairs of axially aligned cigarettes S1, S2 with a double-length filter piece fitted in between, characterized by a rotating drum (1) which is provided on its circumference with two corresponding groups of elongated ribs (5) which are laterally attached Direction from one another, which are spaced and thus enclose a central ring (6) between them, the width of which is slightly greater than the length of the filter piece, while the spacing of the ribs (5) from one another is approximately equal to the circumference of a cigarette, with the drum (1) is functionally coupled to a child mechanism (8), which successively cuts connecting sheets (9) from a continuous paper web, which on its outside, based on the drum, is coated with an adhesive in the area of the middle ring along a distance between two successive ribs of the corresponding section, and wherein the drum is further provided with an over guide device (10) is provided, which supplies the drum with a group of three μ (ST, F, S2) with the filter piece (F) for each connecting sheet, namely on the adhesive upper side of the connecting sheet and against a flank (105) of the ribs (5 ) »Wherein the drum (1) is also functionally coupled to a pneumatic device which holds the cigarettes and / or the connecting sheet and which is actuated selectively one after the other along predetermined arc lengths of the drum path, with the exception of at least a section of the drum path in which the Group of three with the associated connecting blade between the drum and a stationary rolling surface (111) is detected, where the interaction of the rotating movement of the drum and the friction 0098 467 1202 -H- of the group of three against the rolling surface (111), the group of three is brought to roll between the plank (105) of a rib (5) and the opposite plank (105) of the subsequent rib (5), the process of wrapping the connecting sheet taking place sticks to itself along a line that lies on the last-mentioned plank » 2. Device according to claim 1 ·, characterized in that the rolling surface (111) consists of a rear side of a concave body (11) which is mounted in such a V / iron that it is pivotable about a pin (12), namely between an effective position in which di® Eollflache (111) holds the groups of three (S1, F, S2) against the drum, and a lifted inoperative position (211) in which the roller surface (111) is accessible, for example for testing and / or maintenance _e 3ο Device according to one of the preceding claims, characterized by a hot device for the concave body (11) for heating the rolling surface ^/ 111) in order to improve the adhesive effect of the connecting sheet (9) on the groups of three (S1, P, S2) when rolling in « , 4. Device according to one of the preceding claims, characterized in that in an area behind the concave body (11), seen in the direction of rotation of the drum (1), the groups of three (S.1, P, S2) near the unwinding on the concave body (11) duroh the pressure of a lever (14) are held against the drum, which is hinged at one end to a pin (15) and is pressed tangentially against the drum, so that he the groups of three in the In the middle of the Pilterstüokes (F) and thus causes iai ₉ when a pair of cigarettes (31, S2) is indeed wrapped with the connecting sheet, but no fiI- 0098Λ6 / 1202 terstüek, this pair of cigarettes is excreted, because the connecting sheet is not stiff enough and yields under the pressure of the lever, so that the of the Joining sheet of cigarettes held together can be removed from the drum and released from the Lever (14) fall down as the drum continues to rotate as discarded cigarettes. 5. Device according to one of the preceding claims, characterized by 'a pneumatic arrangement for holding the groups of three (Si, 3 ?, S2) on the drum (1), ™ which has a cylindrical body (2) around which the drum (1 ) rotates freely and against which it is hermetically sealed, and which is provided on its periphery with several rims (102 - 502) running on an arc, which are connected on the one hand to a suction device and on the other hand to suction holes (106, 205), " which are provided in the central ring (6) and in the adjacent side parts between the ribs of the drum, the suction holes being open in the area of the grooves in order to apply a negative pressure through them and the connecting sheet (9) and / or the cigarettes ( Sl, S2) to hold on certain arcs of the drum rotation, which correspond to the extensions ä of the channels (Mg ₀ 1 -3). 6 _e device according to claims 1 to 4, characterized in that the pneumatic arrangement for holding the groups of three (S1, P, S2) on the drum has a drum body (101) which sits on a shaft (18) in which suction loops ( 106, 205) are provided between each pair of successive ribs (5) which communicate with corresponding elongated blind channels (23, 24, 25) in the drum body (101) which are equally spaced like rings which are concentrically arranged and on 009846/1202 one-end face are drum open, against which the head (26) (Sines Saugverteilere SiOH applying sealing, the Seblites. (27r 28, has 29 ₉ 30) which are coupled to the Hingea of the channels "so that äuroh these holes a Suction force on & ®n cigarettes, (BI ₉ S2) and / or the connecting «■ sheet Küstanäe toamt ₉ di © tile on.the drum (101) along the given arc ■ of rotation of the drum 09846/120 Empty soap