SU21944A1 - A plug for filtering smoke in cigarettes and a device for making plugs - Google Patents

Description

For the purpose of filtering smoke in cigarettes, it is suggested that plugs for them be manufactured from multi-layered crepe paper, with layers of cellulose wadding between the individual layers of the coil. For the manufacture of rolls of multilayer strips, from which a special device, constituting one of the points of the subject of this patent, rolls these corks, is a machine in which separate strips of crepe paper and a cotton veil are wound, each from its preparation roll with corresponding, coordinated speeds are so relative to each other that cotton swabs are laid on or between crepe paper strips. For this purpose, strips of crepe paper are encircled around the respective preparation roll of wadded material, so that the latter is laid on strips of crepe paper and held onto them before leaving its preparation roll. In this way, strips of crepe paper are connected to strips of cotton material in one composite strip, after which a further strip of crepe paper is placed on the free side of the outer strip of wadded material. A desired strip of crepe paper and wadded material is obtained, which is then cut by known means into parallel tapes with a width equal to the length of the plugs to be manufactured, after which these tapes are wound in the form of blank rolls used for own production of the plugs.

In FIG. 1 is a side view of a machine according to the invention for preparing rolls of multi-layer strips; FIG. 2 - type of round knives, cutting the multilayer tape into narrow strips; Lig. 3 shows a partial longitudinal section of the winding roller of the harvesting rolls; FIG. 4 and 4a show a sectional view and a side view of a blank roll provided with a clip to hold the turns; FIG. 5 shows an embodiment of a device for winding a stopper; FIG. 6 is an enlarged cross-section of a tube wound in a regular helix; FIG. 7 - the same cross-section of the tube with the middle part, wound doubly; FIG. 8 is a side view of a device for coagulation; FIG. 9 is a view of the left half of the drive device of the blank roll; FIG. 10 is a side view of the cork rollers;

FIG. 11 is a vertical sectional view of a second embodiment of the device for winding a coil for a plug, as shown in FIG. 7; FIG. 12 shows another embodiment of the device for winding the stopper and those on: directors, which work in conjunction with the device at the beginning of the winding; FIG. 13 is a view of the fixture of FIG. 12 at the time of completion of the helix; FIG. 14 shows the device of FIG. 12, viewed from the front on the left.

According to FIG. 1, the preparation rollers are made of five alternating layers of crepe paper and an absorbent veil of cellulose wadding, namely three layers of crepe paper and two absorbent layers. The wide harvesting rolls of the absorbent material are designated by the letters a, j and are supported by parallel rollers oj, og, which lie in the same horizontal plane. Two layers of crepe paper are delivered by harvesting rolls b, bi, which are supported by rollers b, b. The latter are located slightly above and behind rollers a, and the harvesting rolls a, ai of absorbent material.

Corresponding layers of crepe paper b are taken from the underside of the harvesting rolls b, b and are cut around the harvesting rolls a, 1 of the absorbent material and above them, and then guided further in the direction opposite to their winding from the rolls b, b. Thus, the layers of paper 4 are pressed under weak pressure to the respective layers 04, A5 of absorbent material, before the latter are removed from their rolls a, y, so that the layers of crepe paper B, 5 serve for layers 4, "s" carriers, to which they abut and with which they are stacked from their rolls a as well. It is important that no significant strain is applied on the layers b, b-, crepe paper during or after their combination with the absorbent material, since otherwise the absorbent layers "4," 5 are unevenly broken or laid unevenly, as a result of which the prepared blank rolls , but

however, the nicks made of the cork become uneven with respect to their absorbency.

Procurement rolls or strips are arranged so that both layers of crepe paper B, B-, together with absorbing layers connected to them in the manner described above, and "5" can be directed together further in the form of one composite strip of material. In order to supplement and complete the composite strip of material from the harvesting roll b, an additional layer of crepe paper i 6 is pulled out and led over the free-lying layer 4 of absorbent material, whereby the machine can be modified accordingly to prepare a composite material of a larger or smaller number of layers than five, for example from three or seven layers.

The material is then composed of three layers of crepe paper b, b-, 6 and two absorbent layers a, and is fed to the cutting and winding device. In the example shown in the drawings, the composite strip runs through the roller c and leads to the cutting device, whereby the entire length of the material is cut into equal strips with a width corresponding to the cork being manufactured. The cutting device consists of a large number of circular knives d (Fig. 2), mounted on a rotating shaft d, and circular knives extending into the grooves ei e. The shaft di is located in the eccentrics rfz (Fig. 1), due to which circular knives d can be elevated from their working position and, thus, the fresh length of the material can be passed through the cutting device and traveled to the winding roller /. The latter consists of a shaft placed in the supports g, which is parallel to the shaft di of the circular knives d and bears several bushings fi consisting of cardboard, etc., and having a width corresponding to the width of the ribbons, which are obtained from the composite strip of material by cutting with knives The bushings / 1 are held in place on the roller / by means of a coupling / 2, provided with an inner thread. This part of the car

equipped with a means by which the distance between the winding roller / and the cutting device can be automatically increased as the diameter of the material / material wound around the roller increases and, moreover, that parallel strips of material can be removed from the cutting device in the horizontal direction. Accordingly, the supports of the winding roller / are located at the ends of two levers, which are fixed to the lower ends by the rotating axis 2 and are held in such a way that the upper part of the roller / lies at the height of the knife e. the sides, to the levers, on the other hand, through the hinges, to the sliders, which can move along the jgo shaft, which is located on the fixed supports and is provided with a screw thread. The shaft 5 is rotated in accordance with the rate of advance of the material through the cutting device, namely from the axis c g through a worm gear g, and on this axis c sits the above-mentioned roller c. Thus, the winding roller /, moves farther and farther away from the cutting device, as indicated by dotted lines, so that the material leaves the cutting device always in a horizontal or approximately horizontal direction. The winding roller f is driven from the drive shaft p by means of a belt and gears i through only a slightly loaded coupling, but other means can be used to ensure that the material leaves the cutting device under very low stress. Knives d are likewise set in motion from the drive shaft /, by means of a belt or chain drive PZ, p. The pre-rolls a, a, b, 6i, 67 rotate connected in accordance with each other, for this purpose, from the drive shaft p, the worm shaft drives the shaft pi, and the second shaft drives it from the latter. besides using a transfer variable for example

using a pair of tapered pulleys. From this second shaft, movement is obtained, on the one hand, by means of bevel gears, shafts, “2 and az bearing rolls b ,. a and cj. and, on the other hand, through the vertical intermediate axes and bevel gears-shafts of the material B, b. If desired, such a drive can be used only for harvesting rolls & /, crepe paper, and the required rotation of harvesting rolls a, and the absorbent material to provide the drag force of these rolls with layers a, a-, crepe paper covering rolls a, Cj. The drive roller is driven from the shaft p by means of bevel gears and a vertical intermediate axis; in general, the arrangement and operation of the entire device is such that the various layers of material or composite strips of material do not experience noticeable voltage in any machine position. The variable drive connecting the two shafts to each other can be automatically controlled by any means to equalize the gradual reduction in the diameter of the bale rolls; This adjustment can also be made by hand.

The insertion of the maschine takes place so that after the knives d are removed from their working position, the composite strip of material passes through the cutting device and is fixed with adhesive material or fastening pins on the ring-shaped supporting cores / clamped on the winding roller /. The couplings (i) are mounted laterally in exact accordance with the position of the knives d. The machine is then driven, and the knives are immediately lowered to the working position. The most extreme leading end of the composite strip of material is not cut into ribbons, however this end can be easily separated from the winding roller / when removed from the supporting sleeves / i, the harvesting coils that have already been completely wound.

After the winding of the harvesting coils is completed, the machine

one by one, the harvesting coils a (Fig. 4 and 4 s), which sit on the couplings /, are attached and removed one after the other with the winding roller, where a spring clip is put on each coil in order to keep the coil threads from loosening or decaying to until one side of the coil is coated with a layer of adhesive substance. In the example shown, the spring clamp consists of a leaf spring having the shape Y and corresponding to the cross section of the coil. The sides of the clamp have a slight inclination inwards, so that they grip the opposite sides of the coil with sufficient pressure so that there is no loosening, unwinding, or any other deformation of the roll.

The individual layers of the multi-layer tape designated for corking can be interconnected in various places in any way, for example by means of a seam, fasteners or by gluing.

Then, the harvesting coils are inserted into the device for making the plugs themselves, and the plug is best prepared in the form shown in FIG. 7, where c denotes a cigarette sleeve, and a material strip constructed in the manner described above, which is doubled in the middle d of the stopper, so that a double helix is obtained, with which the entire cross section of the cigarette sleeve is uniformly filled.

 Empty intermediate spaces that are visible: in places, /, / in FIG. 7, drawn on an enlarged scale, in reality does not exist, since the soft helix is always slightly deformed and the gap also gaps /, /. As can be seen from FIG. 7, there is no need to double the entire spiral, it is enough to double only its middle part.

A preparation coil 1 (FIG. 8) is inserted into the device for manufacturing a hard side, which is the same or similar to the coupling / j described according to FIG. 4, 4 and, and which is now mounted - without clamping / - on the axis 2, rotating in support 3.

From this coil 1, the composite strip of material a is directed through the roller 4 to the device 5, 5, which feeds the device g, which is designated for winding the plug, which filters smoke. The number 7 denotes scissors designed to cut off the required strip piece for a cork, and which are driven in a known manner from the masch drive shaft.

The rotating arm 9 fixed on the base 3 carries the friction roller 8, which is pressed against the circular surface of the preparation coil 1 by means of a spring 11 attached to the lever 9 at one end. The friction coil is driven by a belt or chain transmission 12, 13, 14 (Fig. 9) ) using a wheel mounted on a trunnion 10, which receives its movement using a belt or chain 16 from the axis 17, from which the axis 18 of the tool 5.5 of the power supply device g simultaneously receives the movement for pulling the plug.

Due to this arrangement, the friction roller 8 forces the harvesting coil 1 to unwind to an angle so that a piece of strip of exactly the same length as cut off from strip in position 7 can be advanced and delivered to winding device g, as a result of which strip givani

The reeling device consists (of Fig. 5) of a plurality of rollers, for example, of five Gu, Go, / ,,, r-, / ,, which are all collectively turned counter-clockwise by means of some kind not shown in fig. drive. Stops 19 are inserted into the grooves of the rollers, which prevent the strip from sliding through the slots between the rollers to the outside of the device. One of the two left rollers bounding the inlet of the fixture, namely the roller D), is closed on the side facing the opening by means of a guide bar 21 that protrudes into the opening. The leading end of the strip and automatically takes the form of a double helix when it encounters the r-i roller.

due to such an abutment in the roller during rotation of the winding rollers.

Referring to Figures 10 and 11, the winding mechanism also consists of several rollers, in this case of four o, r -, r g, r, which are all driven in the same direction indicated in fig. 11 arrows, by means of a drive not shown in the drawing, whereby instead of the two lower and two upper rollers, a larger number of them could be used. The upper pair of rollers rj, r- is located in the swing frame, so that this pair can be lifted and installed in a certain way relative to the lower pair.

According to this embodiment, a fixed stop 19 is provided in the inner socket bounded by the rollers and against the opening slit between the rollers TI and ri, the leading end 20 of the material strip abuts against the stop 19, so that when the strip A is advanced by the roller D with the dotted line under the strip a of the guide, the end of the strip a doubles and forms the middle part x of the plug (Fig. 7) in the shape of the letter S.

In the embodiment of the winding device shown in FIG. 12, 13, 14, the four rollers L fz, fi rotating in one direction are arranged again, and the guide bar 21, by means of which a strip to be rolled in is inserted through the gap between the rollers D) and r.j. The latter are equipped with one or several (according to Fig. 14 two) grooves 22. Through these grooves, guide tongues slide into the slot between the rollers, due to which the strip is removed and the opportunity to slip out through the slot between rollers r, Gz 24, which lies against the inlet between the rollers g and g ,.

After the strip a is inserted between the rollers g, r.i and pushed by the roller TI to the slit 24, the strip hits the support 23 and is pushed back. The shape in which this edge of the strip bends depends on the direction of the rib 25 by the stop 23 when the rib comes in contact with the leading end of the strip a. When the rib 25 is vertical to the longitudinal direction of the straight line a, the leading end of the hylosa bends towards itself, so that the middle part of the helix doubles. When it is desirable to move more or less from such a shape, the edge 25 is made more or less inclined.

If it is desired to bend the leading end of the strip itself to get a double helix in the middle of the tube, then circular grooves 22 on the rollers are not necessarily necessary, since the fixed parts serving as stops can be inserted into the slot between the rollers and through the intermediate space 24.

In addition to the lugs 23 of the embodiment according to FIG. 12-14, it is possible to fasten and stops 26, which also fit into the slot through the slots 22. The stops 26 are provided at their upper end with a curviline edge 27, through which the strip and the stop 23 bends upwards in the direction tangential to the edge 25. The lugs 26 are provided with an approximate semicircular recess 28, which contributes to the turning of the inner end of the strip a, as can be seen in FIG. 12. The guide pins 26 rotate near the point 29 and are associated with the springs 30, which try to move these stops to the position of FIG. 12.

As the winding process continues and as the helix diameter is connected with this process, the anvils 26 are pushed backward (Fig. 13).

If the coagulation of the entire strip of the strip cut off at 7 (Fig. 8) is completed, the piston 32 (Fig. 14) is advanced, so that the cork is inserted along its maximum direction into the channel or sleeve 33, from which the cork is laid in a known manner cigarette sleeve.

The subject of the patent.

1. A stopper for filtering smoke in cigarettes, characterized in that it consists of a coiled strip consisting of several layers of crepe paper, between which interleaved cellulose wadding is laid (Fig. B and 7).

2. A machine for making rolls of multi-layer strips, referred to in paragraph 1, characterized by using a system of rollers: a- and a ,, on which tapes of cellulose wool, rolls b,, are wound, on which tapes of crepe paper are wound, covering during winding rolls of cotton wool on rollers a, Jaz, and roller AS with crepe paper, forming, together with ribbons of paper and cotton wool from rollers Oz, a, h. h, multi-layer tape, for cutting of which into narrow strips serve round knives d, e, and for winding them into rolls - a roller / 2 C sleeves mounted on it, driven by rotation from the same mechanism that drives the above-mentioned rollers with the material and the cutting device, and placed in the forks of the arms g, which are deflected as the diameter of the rolls increases, in order to maintain the direction of the tape b coming out of the cutting device (Fig. 1-3).

3. A device for rolling up the cork of multi-layered strips specified in paragraph 1, characterized by the use of four or more rollers g, G2 rotating in one direction, between which stops 19, 19 are passed through the grooves in the rollers (Fig. 5b) and 7) or 23, 26 (Fig. 12-14), of which the latter is equipped with a spring 30.

4. With the device described in item 3, use scissors 7, feed rollers 5, 5 and brake roller 8 pressed to roll 1 and driven in 6 rotation in the direction of winding the strip and the same mechanism that drives the rest of the parts ( Fig. and 89). fig.I. d, d d. b

to patent in-tsa V. Aivaz number 21944

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