US1967154A

US1967154A - Cigarette packing machine

Info

Publication number: US1967154A
Application number: US604829A
Authority: US
Inventors: Molins Desmond Walter
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-04-28
Filing date: 1932-04-12
Publication date: 1934-07-17
Anticipated expiration: 1951-07-17
Also published as: GB394151A; BE387909A; DE609380C; GB373745A; FR735316A; NL33431C; DE603473C

Description

July 17, 1934.

D. w. MOLINS 1,967,154

" CIGARETTE PACKING MACHINE Filed April 12. 1952' 3 Sheets-Sheet 1 INVENTOR MW Ma 1934- I v o. w. MOLINS 1,967,154

CIGARETTE PACKING MACHINE Filed A ril 12. 1932 5 Sheets-Sheet 2 W W m w INVENTOR July 17, 1934.- D. w. MOLINS 1,967,154

CIGARETTE PACKING MACHINE v Filed April 12. 1952 3 Sheets-Sheet s INVEWTO'R Patented July 17, 1934 CIGARETTE PACKING MACHINE Desmond Walter Molina, Bexley, England Application April '12; 1932', Serial No. 604,829 In Great'Britain April 28, 1931 6 Claims. (Cl. 131-43) This invention relates to cigarette making machines of the continuous rod type, and has for its object to provide means whereby the tobacco may be arranged in the continuous rod produced by the machine to produce a rod having unfilled portions at intervals.

Tubes of fairly stiff paper are placed in the said unfilled portions so that a cigarette having a tubular mouthpiece is obtained when the rod is out, or if desired, the cutting point may be so chosen that the portion of the cigarette which is placed in the mouth contains a small amount of tobacco, after which comes the hollow portion whichis then followed by the bulk of the cigarette which is filled with tobacco in the usual manner. This latter form of cigarette is intended to avoid the waste of tobacco which occurs with the average smoker who throws away from one-third to one-quarter of the cigarette when it becomes too short to afford a pleasant and convenient smoke. I

The present invention consists of a cigarette making machine comprising means. for loading a paper web with tobacco, means for dividing the long filler of tobacco into separate portions with a gap between the portions, rod forming mechanism and cutting mechanism arranged to sever the rod at points located near to or within the hollow spaces to obtain cigarettes of the kind herein described.

The invention will be. more particularly described with reference to the accompanying drawings, in which:--

Fig. 1 is asection of a portion of a cigarette making machine showing one way of carrying the invention into effect.

Fig.2 is a view of Fig. 1 in the direction of the arrow A".

Fig. 3 is a detail of a portion of Fig. 1.

Fig. 4 shows a portion of the paper web which is folded up around the tobacco to form a continuous rod.

Fig. 5 shows a section of one form of continuous rod manufactured by the machine.

Fig. 6 shows another form of rod. I

Fig. '7 is a perspective view-of a cigarette made from the rod shown. in Fig. 5.

Fig. 8 is a diagram of an apparatus for applying pieces of stiif paper which form hollow tubes in the finished cigarette.

Fig. 9 shows a front elevation in diagrammatic form of a cigarette machine having the invention applied thereto.

Referring to the drawings, the paper web 1 is carried beneath a tobacco feeding mechanism 16 and receives the tobacco shower in the usual way, see Figures 1 and 9.

The trough 2 which guides the paper web beneath the tobacco feeding mechanism isof curved section, for example, semi-circular, so that the web leaves the filling trough 2 beneath "the tobacco feed 16 in the form of a trough of paper carrying a quantity of tobacco which is uniformly distributed along the length of the same.

I COIIVBYOD 5.-

I The combs are of a width approximately equal to the width of the guide trough as shown in Fig.

'2 and are so moved that a pair of combs in contact with one another are caused to enter the trough from above at the point B and pass into the trough nearly as far as the bottom of the trough.

As the combs move along inthe same direction as the loaded web is travelling they are caused to separate from one another by any suitable device so that when the combs are approaching the point C at the end of the lower'path of the conveyor they are separated from one another by the distance of mentioned above.

Under these circumstances a gap of is formed between each section of the filler and the combs then move vertically upwards out of contact with the tobacco filler so that they do not disturb the same.

The raising and'lowering 'of the combs into the. guide trough is effected by causing the combs to travel along a guide 6, the separation of the rear comb from the front comb being effected by a spring 7 which pulls the rear comb into the vertical position as soon as the guide 6 permits this. A stop 8 is provided for controlling the rear comb when it no longer contacts with the guide.

After a pair'of combs have been withdrawn, from the trough the conveyorscarry the combs around at the end ofthe run and they return to the point B where the guide 6 is so shaped as to press the points of the comb into contact with one another as shown in Fig. 1.

After the gaps have been formed in the filler,

the loaded web passes to the rod forming mech- I anism which comprises the usual endless tape 17 and a gamiture or folder block 18 in which the web is folded up around the filler to'form a circular rod and gum is applied by the gum wheel 19 to the overlapping seam of the web rod forwardly, and thus pull the web along at the required rate. The finished rod is cut into suitable lengths by the cutting apparatus 22, and the cut lengths move on to a conveyor 23 which delivers them to the usual belt from which they are taken by the machine operator.

The mechanism for operating the combs is preferably driven from the cutting mechanism 17 of the machine so that the two mechanisms may be timed relatively to one another to cause the cigarettes to be cut at the particular point desired. It will be appreciated that the relative timing of the two mechanisms may be adjusted to give any required result. For instance, where the finished cigarettes are tipped, it is customary to use a double length tip and cut the rod at a point midway of the tip, in which case the gapsin the rod will be symmetrically disposed about the cutting point. Similar remarks apply to cigarettes which have printing near to one end as it is usual to arrange the die to make two impressions close to one another and cut the rod midway of the two impressions.

Again, it will be seen from the foregoing description that the cut may take place at points adjacent to the gaps where it is desired to produce cigarettes having tobacco at each end with a space in the middle or it may take place within the actual gap where a cigarette having a tube mouth piece is required.

Such considerations naturally affect the timing of the cutting apparatus and although generally speaking, the rod is cut at equally spaced points, it is not absolutely essential that the spaces shall be equal.

The device described for forming the gaps in the filler is only given by way of example, and is obviously capable of considerable variation without departing from the principle of the invention.

Prior to the feeding of the paper web 1 to the tobacco feeding mechanism 16, small patches 9 of comparatively stiff paper are gummed on to the paper at suitable intervals so that when the web is formed into a circle the patches of paper form the small tubes above referred to. The pieces of paper may be gummed to the web by the usual apparatus now used in the trade for affixing mouthpiece tips to cigarettes.

A typical apparatus is shown in Fig. 8 in which the web 1 passes between a roller 10 receiving gum from a bath 11 and a pressure roller 12, the roller 10 being engraved or otherwise formed to make patches of gum at the required positions on the web 1.

The stiff paper is also fed as a web 13 to cutting mechanism 14 and the cut-off portions 9 contact with a web 1 at the instant the cutting operation ceases.

A pair of pressure rollers 15 cause the pieces of paper 9 to adhere to the web 1 which thereafter passes into the filling channel of the machine as above-mentioned.

The width of the paper strip is narrower than the cigarette paper web, as shown in Fig. 4, to provide for the usual overlap of the paper when the cigarette is made up.

In Fig. 5, the tubes are comparatively short as each tube is to be included in a cigarette as shown in Fig. '7, but where it is desired to make tube ended cigarettes the tube is made of double length as indicated in Fig. 6, and the rod is cut at the centre of the tubes to form tube cigarettes.

If desired, the hollow spaces in the loaded web may be filled with paper tubes, wads of paper or absorbent material fed down .by any suitable mechanism.

What I claim as my invention and desire to secure by Letters Patent is:

1. In a cigarette making machine, the combination with means for guiding a web of cigarette paper loaded with tobacco filler in a predetermined path, of means for engaging and separating the filler at spaced points to provide gaps interrupting the continuity of the filler.

2. In a cigarette making machine, the combination with means for guiding a web of cigarette paper loaded with tobacco filler in a predetermined path, of means for engaging and separating the filler at spaced points to provide gaps interrupting the continuity of the filler, means for forming the loaded web into a rod, and. means for thereafter severing the web at spaced points.

3. In a cigarette making machine, the combination with means for feeding a web of cigarette paper in a predetermined path, of means located adjacent the path of movement of the web for applying at spaced intervals by adhesive a reinforcing strip to that face of the web which is innermost in the finished cigarette, means for guiding the reinforced web when loaded with cigarette filler through a predetermined path, andmeans for thereafter engaging and separating the filler at the points of reinforcement of the web.

4. In a cigarette making machine, the combination with means for guiding a web of cigarette paper loaded with tobacco filler in a predetermined path, of means for engaging and separating the filler at spaced points to provide gaps interrupting the continuity of the filler, said means comprising two members supported for movement into and with the filler, and means for displacing said members relatively lengthwise of the filler during movement of said members with the filler to effect separation of the latter.

5. In a cigarette making machine, the combination with means for guiding a web of cigarette paper loaded with tobacco filler in a predetermined path, of means for engaging and separating the filler at spaced points to provide gaps interrupting the continuity of the filler, said means comprising two members supported for movement into and with the filler, means for displacing said members relatively lengthwise of the filler during movement of said members with the filler to effect separation of the latter, and a continuous conveyor for supporting said members.

6. In a cigarette making machine, the combination with means for guiding a web of cigarette paper loaded with tobacco filler in a predetermined path, of means for engaging and separating the filler at equally spaced points to provide gaps interrupting the continuity of the filler, said means comprising two members supported for movement into and with the filler, and means for displacing said members relatively lengthwise of the filler during movement of said members with the filler to effect separation of the latter, said means comprising a conveyor so supported that a run thereof lies above and extends substantially parallel to the path of movement of the web, a pair of members supported on said conveyor and having filler piercing portions movable into and with said filler in closely adjacent relation, and means for separating the fillerpiercing portions of said members during movement thereof. with the filler to effect separation of the latter.

DESMON'D WALTER MOLINS.