DE1246490B - Strand breaking device for cigarette machines - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

A24c

German KL: 79 b - 12/01

Number: 1 246 490

File number: M 57483 III / 79 b

Filing date: July 12, 1963

Opened on August 3, 1967

The invention relates to a strand breaking device in a strand cigarette machine.

In a rod cigarette machine, a moving cigarette rod is formed by im Strand forming unit placing a moving web of cigarette paper around a stream of tobacco; the The continuous strand then runs into the cutting device, where it is cut into individual cigarette lengths is cut up. The strand formwork has a glue application device, the glue on a The edge of the paper web applies; this edge is then folded over so that it is the other edge of the Web overlaps and sticks to it; a heating device finally connects them to each other overlapping and sticking edges.

When the machine starts up, the strand exiting the strand forming plant normally results initially no satisfactory cigarettes. For example, this strand may initially be insufficient Contain tobacco or the seam may not be properly taped. That's why you let him The strand does not initially enter the cutting device, but as soon as the machine has been running for some time runs and the strand emerging from the strand forming plant is of suitable quality, the strand becomes broken off, and the resulting leading free end of the strand is left in the cutting device come in.

In the past, the strand has often been broken by hand, deflecting it by hand until its texture was satisfactory. This not only required great things Skill, but also a lot of space in the machine in front of the cutting unit.

Also known is a device for breaking off the strand, in which a spring-loaded Arm with a deflection surface is initially arranged in the strand path and this is so at the entrance to the Preventing the cutting unit. The arm also carries a knife. When the operator agrees deems the strand to be satisfactory, it triggers a role that the arm initially against the Spring action holds back, and the arm swings to the rest position, the knife pulling the strand is cut and the deflecting surface is moved out of the path of the strand (cf. German patent specification 862 115).

Furthermore, a strand breaking device is known in which the cigarette paper web by a spring-loaded Roll around a wheel is led out of the normal strand path. If this Device for filling the paper sleeve with tobacco. Strand breaking device for cigarette machines

Applicant:
5

The Molins Organization Limited, London

Representative:

E. Riebensahm, lawyer, ίο Karlsruhe, Badenwerkstrasse

Named as inventor:
Michael Aren Pym, London

Claimed priority:

Great Britain July 13, 1962 (27 040)

begins, the strand gradually stiffens and eventually breaks, which is then caused by the breakage resulting leading end of the strand enters the cutting unit in a straight line (see USA patent specification 1 790 342).

It is the object of the invention to create a device that, on the one hand, reliably breaks off causes, so not a knife used, which turned out to be inexpedient for the present case and by means of which, on the other hand, the strand can be broken regardless of its stiffness. To solve this problem, in a strand breaking device in a strand cigarette machine, in which the cigarette rod is conveyed lengthways on a conveyor belt that runs downwards around a wheel, so that the strand, when it is to be cut into cigarettes, goes straight past the wheel eirie gap runs towards the cutting unit, with deflection means through which the strand moves from its straight line Paths downwardly deflectable and can be pressed against the wheel for the purpose of breaking off, according to the invention a guide element is provided which is movable into a first position in which it is down the strand deflects, and down to a second position, in which it releases the straight path of the strand, and through another part that presses the strand against the wheel so that it breaks off.

In this way, a strand breaking device is created that a reliable breaking of the Strand at the right moment, so if the strand is not just properly filled with tobacco,

709 619/196

Claims (1)

3 4 but also the seam is properly glued. The bar (part of which is shown in the figure Device can be space-saving under the strand path) heats the overlapping paper edges in order to are arranged and is suitable for automatically closing the strand. The heater to be operated. can from a location remote from the strand - in the This is because drive means for 5 are expediently located when the machine is not working - the guide element by moving a layer into a position adjacent to the strand (this is in Part of the cigarette machine are operated, z. B. F i g. 1 and 2) - in which it is held, through part of the strand forming plant. As such, while the machine is working normally - moving One will preferably be part of the strand forming plant. during start-up of the cigarette making machine in their io I _n association with the sector gear 11 is a Working position movable heating device provided for the solenoid JJ, which, when energized, causes Strand seam into consideration. A temporal d3ß * tTasSegrnent 11 can be derived from its in FIG. 1 dar- Delay between the movement of the posed position by a desired amount in Drive means actuating part of the cigarette clockwise (corresponding to the illustration in machine and the actuation of the drive means 15 figures) rotates. The solenoid 14 is through the be provided. Movement of the heater out of its from the strand One embodiment of the invention is in its remote position in its position adjacent to the strand individual described with reference to the drawings, excited, with a selected time delay namely represents between the movement of the heater and the F i g. 1 is a side view of part of an energization of the solenoid. Strand cigarette machine and The device works as follows: When the FIG. 2 shows the device according to FIG. 1, with the cigarette machine starting up, the heating elements are located the parts are in a different position. device in its remote location from the strand and As can be seen from the figures, the guide element is shown in FIG. 1 Cigarette rod C, the 25 layer from the rod forming unit. The unlocked strand that initially made emerges longitudinally in the direction of the arrows on one of the strand forming works, is therefore through Conveyor belt promoted, which revolves around a wheel 2. the part 5 of the guide element of its way When the machine is operating normally, it moves to link 3 derived. Then the heater the strand C in an approximately straight path (with dashed device downwards, so that the bar 13 on the Line in FIG. 2) rests past the wheel 2 and 3 ° to be glued together paper edges, Heated over a gap in a strand receiving the latter and thus closes the strand. However funnel-shaped member 3, which passes in the illustrated a short period of time after the Embodiment the entrance to a Strangmeß- heating device is moved down before the out- device 4 forms. However, the limb 3 could also be properly closed when the stepping strand. While form the entrance to a cutting device. During this time, the parts remain in the position shown in FIG. 1 dar- As shown in FIG. 1 can be seen, a guide element is provided position and the unsuitable strand is of from a part 5 with a guide surface 6 and its path to the link 3 through the guide element derived from a freely rotatable roller 7 at its upper end. After a time lag like that arranged so that it is selected by way of the wheel 2 that the strand then orderly exiting strand C is and the strand of 40 is closed according to, the solenoid 14 is energized, derives its straight path, so it does not occupy that around the tooth segment 11, which then Link 3 enters. The guide element is turned counterclockwise by the arm 8 (corresponding to supported by an arm 8 which pivots on a shaft 9 - Fig. 1), so that the guide element is arranged. With the shaft 9, a toothed segment 10 is downwardly into its in FIG. 2 position shown moves connected, which is connected to a further tooth segment 45. When the guide element is down 11 cooperates, which is rotatable about a shaft 12. moves, the strand C is gripped by the roller 7 If the segment 11 is pressed by a desired amount and against the band 1, which by the clockwise (as shown in wheel 2, so that a break B occurs when the F i g. 1) rotated, segment 10 and strand C are first pressed against wheel 2, ie Shaft 9 rotated counterclockwise and 5 ° when the roller 7 is in the position that in as a result, the arm 8 is moved so that the dashed line in FIG. 2 is shown; the location Guide element in its full lines in the strand at the time of the break is also in F i g. 2 situation shown comes. dashed line in F i g. 2 shown. The leading one If the guide element enters the extended end of the strand following the break, then Lines in Fig. 2 is moved, 55 is due to the rigidity of the strand, on a straight path the strand C is detected by the roll 7, which the over the bridge in the link 3 and the machine Strand presses against tape 1; this will continue to run normally. Strand guided so that it is attached to the tape 1 by a part. According to the invention, therefore, is a device the circumference of the wheel 2 follows. This bending created the breaking off of the tobacco rod of the strand caused due to the stiffness of the strand 60 only in the moment in which this from a break B at one point at the top of the wheel 2. is in perfect condition. The strand forming mechanism consists of, among other things a conventional glue applicator (not shown), the glue on one edge of the Cigarette paper web applies, and said 65 1st strand breaking device in a strand edge is then turned over so that the other cigarette machine in which the cigarette rod is located Edge of the paper web overlaps and is conveyed along with this on a conveyor belt that stuck together; a heating device with a heating downwards runs around a wheel, so that the strand, if it is to be cut into cigarettes, go straight past the edge over a gap runs towards the cutting unit, with deflection means, through which the strand from its straight path is deflectable downwards and can be pressed against the wheel for the purpose of breaking off, marked by a guide element (5, 6) which is in a first position is movable in which it deflects the strand downwards, and downwards into a second Position in which it releases the straight path of the strand, and by another part (7) that the Strand presses against the wheel (2) so that it breaks off. 2. Apparatus according to claim 1, characterized in that drive means for the Guide elements (5, 6) are actuated by the movement of part of the cigarette machine, z. B. by part of the strand forming plant. Considered publications:
German Patent No. 862 115;
U.S. Patent No. 1,790,342. 1 sheet of drawings 709 619/196 7.67 © Bundesdruckerei Berlin