FR2540351A1 - OUTPUT SAMPLING BLOCK FOR MACHINE FOR CIGARETTE FILTER INSTALLATION - Google Patents

Abstract

OUTPUT SAMPLING BLOCK FOR CIGARETTE FILTER INSERTING MACHINE. CHARACTERIZED IN THAT IT ALSO CONTAINS A SAMPLING UNIT 22 CONNECTED IN PARALLEL ON THE CONVEYOR LINE 19, 20, 21 AND INTENDED TO COOPERATE WITH THE CONVEYOR ROLLER 9 ON THE ARC 20 SO AS TO EXTRACT THE CIGARETTES 18 THE ONE AFTER THE OTHERS OF THE CAVITES 17 OF THE CONVEYOR ROLLER 9. THE INVENTION RELATES TO EQUIPMENT FOR MAKING CIGARETTES.

Description

254035 1

  Sample output block for a setting machine

place of cigarette filters -

  The invention relates to a sample block-

  Exit swim for machine for placing cigarette filters. Cigarette filter filling machines of known types use an output block comprising a feed or inlet roll, a roll-off roll-in roller, an exit conveyor and a feed device. Sampling The latter

  generally comprises two feed rolls

  tangent to each other between the reject roll and the exit conveyor, the first of these rollers being an intermediate roll and the second one a roll

  sampling tangent to the output conveyor.

  The above rollers are each provided with a number of peripheral slots into which the cigarettes are fed and retained by suction.

  along an arc corresponding to a part of the circumference

  the roll, so as to be supplied to the conveyor

Release.

  The sampling roll is usually

  equipped with an auxiliary suction system for

  to keep cigarettes loose inside the slots and send them to a collection tank instead of getting them on the exit route at the end

2 R of the bow above.

  The main drawback of the output block described above is its high manufacturing cost of which the

  main factor is the high cost of the sample block-

  Since the latter is an integral part of the supply chain for cigarettes at the exit conveyor, the sampling device must comprise two rolls

  mutually tangent, one of which is an intermediate

  diary. In addition, since the sampling roll must both bring the cigarettes and remove the samples, the structure is not only relatively

complex but still unreliable.

  The invention aims to create a block of

  output for machine for setting up cigar filters

  to remove samples of cigarettes while avoiding the above-mentioned disadvantages of

the prior art.

  For this purpose, the invention relates to an output sample block for a filter placement machine for feeding cigarettes one after the other along a line of conveyors and comprising at least one conveyor roll provided with a number of axial cavities distributed around its circumference, each of these cavities being intended to receive a cigarette and to drive it forward on an arc defining at least part of the conveyor line and corresponding

  part of the circumference of the roll, a sample block

  trellising characterized in that it also comprises a sampling unit connected in parallel on the conveyor line and intended to cooperate with the conveyor roller on the arc, so as to extract the cigarettes one after the other cavities d 2 u the conveyor roll and to send them into collecting means, control means being provided for operating the sampling unit for a period of time adjustable as required.

  The invention will be described in detail with reference to

  to the attached single figure representing a side view

  in elevation of a device according to the invention.

  The reference numeral 1 designates a machine for placing filters, a side panel 2 of which carries an output sampling block 3 comprising four rotary shafts 4, 5, 6, 7 parallel to one another, perpendicular to the panel 2, and equipped with respectively

of rollers 8, 9, 10, l.

  One side of the roll 8 serving as an input roll of the block 3, is tangent to the end roll 12 of a feed line 13 passing through the machine 1, while the other side of the roll 8 is tangent to a roll 9 designated "reject roll" for bringing cigarettes into a reject station 14 o any defective cigarette detected by control means (not shown) disposed along the line 13 is ejected,

  by means not shown, and sent to a

  The reject roll 9 is tangent to the roll 10 which, together with the roll 1, also supports a conveyor

output 16.

  The rollers 8, 9, 10 comprise a certain number of axial slots 17 around their circumference, these slots being intended by suction means

  (not shown), to receive cigarettes 18 when

  they move forwardly along a conveyor line defined by a number of arcs (19, 21) each corresponding to a portion of the circumference of the respective rollers 8, 9, 10 and extending between

  the points of tangency of the adjacent rollers.

  On his own bow, the rejection roll 9

  cooperates with a sampling block connected in derri-

  This is mounted on the conveyor or line and comprises an auxiliary roll 22 designated "sampling roll". The latter is rotatably mounted around an inner support roll 23 fitting on a hollow shaft 24 mounted on the panel 2 under a fixed angle, parallel

  to the shafts 4 to 7 The sampling roll 23 is also

  It is provided on the outside with a number of regularly spaced slots 17 each communicating with a corresponding inner radial passage 25 along the arc 26 extending between the point of tangency with the roller 9.

  and the point of release above the container-

  27, the inner end of the inner radial passage 25 selectively and successively communicates with two annular slots 28, 29 located on the outer surface of the

inner roller 23.

  The slot 28 is shorter than the slot 29

  and communicates with the interior of the tree 24 by the pas-

  radial shaft 30 on which is mounted a coupling valve

  pure or medium control 31 normally open and action-

  born by a servo control (not shown) commanded by

  a push button 32 The slot 29 communicates with the inte-

  of the shaft 24 by a passage 33 of lower capacity

  than the passage 30 The shaft 24 communicates with a suction source 34 by control means including a closed valve device 35 actuated by

a manual push button 36.

  During the operation of the system, the cigarettes 18 supplied to the block 3 by the exit roller 12 on the line 13, are generally brought on arches 19, 20, 21 by the rollers 8, 9, 10 so as to come on the o conveyor they are sent to the

exit from the machine 1.

  To perform a random check of the quality of the cigarettes 18 produced, the operator presses the button 36 so as to communicate the hollow shaft 24 with the suction source 34 by the

  When the air is sucked from the armature

  24, the vacuum created inside the slots 28 and 29 causes the air to be sucked by the slots 17 along the arc 26 of the roller 22. Because the passage 30 has a larger section than the passage 33, the suction amplitude through the section of the slots 17 communicating at this time with the slot 28, is not only greater than the suction amplitude through the other slots 17 of the remaining portion of the arc 26, but still larger than the suction holding the cigarettes 18 inside the slots 17 along the arc

of the roll 9.

  As a result, when the cigarettes 18 brought by the roll 9 reach the point of tangency with the roll 22, these cigarettes are extracted radially from the slots 17 of the roll 9 and sucked into the slots 17 of the roll 22 which communicate one by one with the slot Once transferred onto roll 22, the cigarettes

  18 are driven forward on bow 26 at the end of

  Whereby the suction passing through the slits 17 is cut so as to release the cigarettes 18 from the roll 22 and drop them into the tank 27 in which they can be taken by hand for inspection. Of course, the number of cigarettes 18 e <r't of the roller 9 to fall into the reservoir 27 by detaching the roller 22, depends on the duration of pressing the button 36 and the button 32 To cut the flow of cigarettes falling into the reservoir 27, just press the

  button 32 to close the valve 31 This cuts the suction

  produced through the slot 28 and separates the function

  10 and 9 so that the cigarettes 18 can advance normally over the arc 20 to reach the roll 10 and the exit conveyor 160. The button 32 must be held down until all the cigarettes 18 of the roll 22 have fallen into the reservoir 27, after which the communication between the interior 3 F of the shaft 24 and the suction source Jo 3-> 4 can be cut off

by releasing the button 36.

  It is clear that in the sample block 3 described above, the cigarette samples are removed by a roller (the roller 22) which is not part of the conveyor line.

  cigarettes and which constitutes a relative auxiliary block

simple and cheap.

Claims (2)

  An output sampling block for a filter setting machine (1) for feeding cigarettes (18) one after the other along a line of conveyors (19, 20, 21) and comprising at least a conveyor roll (9) provided with a number of axial cavities (17) distributed around its periphery, each of these cavities being intended to receive a cigarette (18) and to drive it forward on an arc ( 20) defining at least part of the conveyor line (19, 20, 21) and corresponding to a part of the circumference of the roll (9), sampling block characterized in that it also comprises a sampling unit (22) connected in parallel with the conveyor line (19, 20, 21) and intended to cooperate with the conveyor roll (9) on the bow (20) so as to extract the cigarettes (18) one after the other cavities (17) of the conveyor roller (9) and to send them in glue means (27) means of   control (31, 32, 35, 36) being provided to actuate the unit   sample (22) for a period of time the needs.   2) Sampling block according to the   cation 1, characterized in that the sampling unit comprises an auxiliary roller (22) tangential to the conveyor roller (9) at a point along the arc (20), this roller also being provided with axial cavities (17) for cigarettes (18).   ) Sample block according to one   of claims 1 and 2, characterized in that the   cavities (17) of the auxiliary roller (22) are intended to communicate, along an arc (26) between the point of tangency and the collecting means (27), with the suction means (34) by the intermediary means of control (31, 32; 35, 36).   ) Sample block according to one   of claims 1 to 3, characterized in that the   control means comprise at least one element of   valve (25) externally controlled.