CN116649619A - Self-plugging smoke section with isolating sheet, preparation method thereof and granular cigarette - Google Patents

Abstract

The invention belongs to the technical field of heating cigarettes, and particularly relates to a self-plugging smoke section (I) with a separation sheet, preparation thereof and a granular cigarette. The self-plugging smoke generating segment (I) comprises: the smoke generating device comprises a smoke pipe (1), a plugging piece arranged at the far lip end of the smoke pipe (1), a rear end isolation sheet (2) arranged at the near lip section of the smoke pipe (1) and a smoke generating substance arranged between the plugging piece and the rear end isolation sheet (2); the smoke tube (1), the blocking piece and the rear end isolation sheet (2) are coaxially arranged. Ventilation is achieved in the smoke generating segment of the invention while blocking the smoke generating particles with a rear end spacer 2 disposed at the proximal lip end of the tube. The plugging piece at the far lip end of the pipe body comprises a first scheme, wherein the plugging piece is the same as the rear end isolation piece, a second scheme, and the plugging piece is a front end isolation piece and is provided with a cross-shaped heating seam. Thus, the front end spacer both seals the smoking particles and facilitates insertion of the heating element.

Description

Self-plugging smoke section with isolating sheet, preparation method thereof and granular cigarette

Technical Field

The invention belongs to the technical field of heating cigarettes, and particularly relates to a self-plugging smoke section with a separation sheet, preparation thereof and a granular cigarette.

Background

The particle type cigarette is a novel heating type cigarette in recent years, and smoke particles replace tobacco sheets to be used as smoke materials, the smoke particles are heated more uniformly than the tobacco sheets, and smoke is diffused along gaps among the particles more smoothly than the tobacco sheets HNB cigarette, so that the particle type cigarette is popular with consumers.

Particulate cigarettes are typically formed by filling smoking particles into a paper tube having a distal lip end seal to form a particulate section, and providing downstream of the particulate section a porous firmware section (or gear member), a cooling section (which may be a perforated cavity section or a cavity section filled with cooling material), and a filter section. Since the smoker particles are loose and flowable, if unconstrained, they will flow into the downstream cavity segment when the cigarette is placed horizontally, and these flow downstream smoker particles will not be heated effectively by the heater, affecting the smoking effect, all particle-type cigarette constructions currently are designed with means for constraining the smoker particles from flowing around, with the particles generally constrained upstream by the sealing film and downstream by the porous firmware segment (or gear element).

The porous firmware segment is usually ceramic or silica gel, and has axial through holes or ventilation grooves at the center and/or periphery for smoke to pass but not for smoke particles to pass, so as to block the smoke particles and transmit the smoke. In addition, when the resistance heating sheet or the electromagnetic heating sheet is inserted into the particle section for central heating, the porous firmware section can also prevent the fuming particles from pushing the porous firmware section to move downstream under the pushing of the insertion force of the heating sheet due to interference fit with the inner wall of the paper cylinder. However, the presence of the porous firmware segment increases the overall length of the cigarette, and thus, it is always desirable for those skilled in the art to simplify the structure of the porous firmware segment and reduce the volume of the porous firmware segment.

The present invention has been made to solve the above problems.

Disclosure of Invention

The first aspect of the invention provides a self-plugging smoke generating segment I with a spacer, comprising: the smoke generating device comprises a smoke tube 1, a plugging piece arranged at the far lip end of the smoke tube 1, a rear end isolation sheet 2 arranged at the near lip section of the smoke tube 1, and smoke generating substances arranged between the plugging piece and the rear end isolation sheet 2;

the smoke tube 1, the blocking piece and the rear end isolation sheet 2 are coaxially arranged;

wherein the rear end spacer 2 includes: an annular frame 21 and a central diaphragm 22 provided on a distal lip end side of the annular frame 21; the edge of the near-lip side of the central diaphragm 22 is a region covered by the annular frame 21, and the center of the near-lip side of the central diaphragm 22 is a region not covered by the annular frame 21, and a through hole or slit 222 is provided in the region.

The plugging piece is the same as the rear end isolation sheet 2, or the plugging piece is a front end isolation sheet 3;

the front end spacer 3 includes: a ring-shaped piece 31 and a center spacer 32 provided on a proximal lip end side of the ring-shaped piece 31; the center of the annular sheet 31 is provided with a cross-shaped reserved notch 311, the center of the central spacer sheet 32 is provided with a cross-shaped heating slit 321, the cross-shaped heating slit 321 is located at the center of the cross-shaped reserved notch 311, the center of the cross-shaped heating slit 321 is provided with a central tearing-preventing slit 322 which forms a certain angle with the cross-shaped heating slit 321, and the central tearing-preventing slit 322 passes through the center of the cross-shaped heating slit 321.

Above-mentioned, when rear end spacer 2 sets up the nearly lip section of tobacco pipe 1, there are two kinds of schemes:

the rear end spacer 2 may be provided at the end of the proximal lip section, i.e. the proximal lip end;

the rear end isolation sheet 2 is not arranged at the end part of the near lip section of the smoke tube 1, namely the rear end isolation sheet 2 is arranged in the middle of the smoke tube 1, and a section of cavity is reserved at the near lip end of the smoke tube 1. The section cavity can be used for inserting a cooling section, a filtering section and the like.

Preferably, the central tear-proof seam 322 is two intersecting pieces, and the central tear-proof seam 322 and the cross-shaped heating seam 321 are in a shape of a Chinese character 'mi'.

Preferably, the cross-shaped heating seam 321 is provided with a plurality of middle tearing-proof seams 323 communicated with the cross-shaped heating seam.

Preferably, the end of the cross-shaped heating slit 321 is provided with an end anti-tearing slit 324 communicated with the end.

Preferably, the outer circumference of the ring frame 21 is circular or regular polygon, and the outer circumference of the ring plate 31 is circular or regular polygon.

Preferably, the edges of the cross-shaped reserved gaps 311 are rounded curves.

Preferably, the front end spacer 3 and the rear end spacer 2 are made of paper, the strength of the annular frame 21 is greater than that of the central membrane 22, and the strength of the annular sheet 31 is greater than that of the central spacer 32. The ring frame 21 and the ring segments 31 are able to withstand a certain compression and remain supported in the pipe 1.

Preferably, the front end spacer 3 and the rear end spacer 2 are made of one or more materials selected from paper, polymer film and aluminum foil.

For example, the ring frame 21 is made of paper, or a composite of paper and aluminum foil, or a composite of paper and a polymer film. For example, the central membrane 22 is paper, or a paper and aluminum foil composite, or a paper and polymer film composite. For example, the ring 31 is made of paper, or a composite of paper and aluminum foil, or a composite of paper and a polymer film. For example, the center spacer 32 is a paper material, or a paper and aluminum foil composite material, or a paper and polymer film composite material.

Both the central spacer 32 and the central membrane 22 are somewhat resilient in nature.

Preferably, the length of the central tear-proof seam 322 is 1/20 to 1/2 of the length of the cross-shaped heating seam 321.

Preferably, the length of the end tear seam 324 is 0.5 to 0.8 times the length of the middle tear seam 323.

Preferably, each of the cross-shaped heating slits 321 is provided with 1 to 3 middle tear-preventing slits 323 and 1 end tear-preventing slits 324 which are distributed at intervals along four directions from the center.

Preferably, the front end spacer 3 further includes: and the other ring-shaped sheet 31, two ring-shaped sheets 31 sandwich the center spacer 32.

Preferably, the annular sheet 31 and the central spacer 32 are fixed by bonding.

Preferably, the rear end spacer 2 further includes: another annular frame 21, two annular frames 21 sandwich said central membrane 22.

Preferably, the annular frame 21 and the central membrane 22 are fixed by bonding.

A second aspect of the invention provides a particulate cigarette comprising a self-plugging smoking segment I according to any one of the first aspects, the smoking material being a smoking particle.

Preferably, when the whole rear end isolation sheet 2 is in a regular polygon shape, the diameter of the regular polygon circumscribed circle is larger than the inner diameter of the smoke tube 1, and a gap allowing smoke to circulate exists between the outer edge of the rear end isolation sheet 2 and the inner wall of the smoke tube 1;

when the whole rear end isolation sheet 2 is in a disc shape, the outer diameter of the rear end isolation sheet is larger than the inner diameter of the smoke pipe, so that the rear end isolation sheet 2 is in interference fit with the smoke pipe.

When the front end isolation sheet 3 is in a regular polygon sheet shape as a whole, the diameter of the regular polygon circumscribed circle is larger than the inner diameter of the smoke tube 1, and a gap allowing smoke to circulate exists between the outer edge of the front end isolation sheet 3 and the inner wall of the smoke tube 1;

when the front end isolation sheet 3 is in a round sheet shape as a whole, the outer diameter of the front end isolation sheet is larger than the inner diameter of the smoke tube 1, so that the front end isolation sheet 3 is in interference fit with the smoke tube 1.

A third aspect of the present invention provides a method of making a self-plugging smoke generating segment I according to any one of the first aspects, the method comprising the steps of:

in the station a, the first sucker 42 attracts a piece of rear end spacer 2 under negative pressure for standby;

at the station b, a smoke tube 1 is arranged in a smoke tube filling clamping mechanism 5, so that the far lip end of the smoke tube 1 is vertically upwards placed;

the supporting rod 62 drives the supporting end surface 61 to extend into the smoke tube 1, so that the top of the supporting end surface 61 is equal to the far lip end of the smoke tube 1 in height;

the first sucking disc 42 loads a piece of rear end isolation sheet 2 which is sucked by negative pressure into the smoke tube 1, and meanwhile, the supporting rod 62 drives the supporting end face 61 to assist in supporting the rear end isolation sheet 2 to move down to a preset position in the smoke tube 1 together stably and in parallel, so that the rear end isolation sheet 2 does not skew in the downward moving process, and a smoke agent accommodating area is formed above the rear end isolation sheet 2;

the first sucking disc 42 is separated from the surface of the rear end isolating sheet 2 and returns to the flat and level position on the smoke tube 1;

at station c, filling fuming particles 9 in a fuming agent accommodating area above the rear end isolating sheet 2 in the smoke tube 1 by using a hopper 8 capable of being filled quantitatively;

the positions of the hopper 8 filling mechanism and the second diaphragm filling mechanism 11 start to switch; the second sucker 112 attracts a front end spacer 3 under negative pressure for standby;

at the station d, the second sucker 112 moves to the position right above the far lip end of the smoke tube 1;

the second sucker 112 presses a front end isolation sheet 3 which is sucked by negative pressure into the far lip end of the smoke tube 1;

firstly, the second sucker 112 is separated from the front end spacer 3, and then the supporting end surface 61 is separated from the auxiliary supporting state of the rear end spacer 2 under the driving of the supporting rod 62;

and in the station e, the smoke tube filling clamping mechanism 5 is separated from the smoke tube 1, and the semi-finished cigarette filled in the smoke-producing section can be taken out.

The specific structure of the above components can be designed as desired by those skilled in the art.

Herein, "proximal lip end", "distal lip end" are relative terms referring to the two ends of a smoking article or a segment thereof, respectively. "proximal lip" refers to the end of a smoking article or a segment thereof that is closer to the user's lips when the smoking article is in use. "distal lip" refers to the end of the smoking article or a segment thereof that is farther from the user's lips when the smoking article is in use.

Accordingly, if the smoking article or a segment thereof is segmented, the segment comprising the proximal lip end is referred to herein as the "proximal lip segment" and the segment comprising the distal lip end is referred to herein as the "distal lip segment".

I.e. the smoking article presents a "proximal lip end", "distal lip end", a proximal lip segment "," distal lip segment ". Accordingly, there is also a "proximal lip end", "distal lip end", proximal lip segment "," distal lip segment "of a certain segment of the smoking article.

When the cigarette is sucked, the direction of the smoke flow in the cigarette is recorded from 'upstream' to 'downstream'.

The smoking article may be referred to as a cigarette or a self-plugging smoke segment I.

The technical proposal can be freely combined on the premise of no contradiction.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a self-plugging smoke generating segment I or a cigarette, wherein ventilation is realized in the smoke generating segment by using a rear end isolation sheet 2 arranged at the near lip end of a tube body 1 to plug smoke generating particles. The blocking piece of the distal lip end of the tube body 1 comprises two schemes:

the first scheme is that the plugging piece is the same as the rear end isolation sheet 2, and the smoke generating section or the cigarette is particularly suitable for indirect conduction heating: such as by preheating the air using an "air heating type" smoking article, the preheated air flowing from the rear end spacer 2 into the smoke generating segment or cigarette. In addition, the problem of 'smoke material leakage' caused by the contact type heating smoking set is completely not needed to be considered, and the heating process can be fully completed.

In the second scheme, the plugging piece is a front end spacer 3, which is provided with a cross-shaped heating seam 321. Thus, the front end spacer 3 both seals the smoking particles and facilitates insertion of the heating element.

2. In the preferred technical scheme, the rear end isolation sheet 2 and the front end isolation sheet 3 are made of paper, and are more environment-friendly than the existing plastic isolation plugging piece, so that the natural degradation of waste cigarettes is facilitated.

3. The rear end isolation sheet 2 and the front end isolation sheet 3 are sheets, so that the volume is smaller, and the axial length of the self-plugging smoke section I and cigarettes is reduced.

Drawings

Fig. 1 provides an axial cross-section of a self-plugging smoke generating segment I according to a first embodiment.

Fig. 2 is a front view and a side sectional view of the rear end spacer 2 in the first embodiment.

Fig. 3 is a front view and a side sectional view of the front end spacer 3 in the first embodiment.

Fig. 4 is a schematic view of a particle-type cigarette according to a second embodiment

Fig. 5 is a front view and a side sectional view of the back end spacer 2 according to the third embodiment.

Fig. 6 is a front view and a side sectional view of a back end spacer 2 according to a fourth embodiment.

Fig. 7 is a front view and a side sectional view of the back end spacer 2 according to the fifth embodiment.

Fig. 8 is a front view and a side sectional view of a back end spacer 2 according to a sixth embodiment.

Fig. 9 is a front view and a side sectional view of a front end spacer 3 provided in the seventh embodiment.

Fig. 10 is a front view and a side sectional view of a front end spacer 3 according to an eighth embodiment.

FIG. 11 is a schematic diagram showing the working state of the preparation method of example 2 at station a.

FIG. 12 is a schematic diagram showing the working state of the preparation method of example 2 at the initial time at station b.

FIG. 13 is a schematic diagram showing the working state of the preparation method of example 2 at the station b and at the time +1.

FIG. 14 is a schematic diagram showing the working state of the preparation method of example 2 at station b, +2.

FIG. 15 is a schematic view showing the working state of the working position at the time +3 at the working position b in the preparation method of example 2.

Fig. 16 is a schematic diagram showing the working state of the working position at the initial moment in the c-station in the preparation method of example 2.

FIG. 17 is a schematic diagram showing the working state of the preparation method of example 2 at the c station and +1.

Fig. 18 is a schematic diagram showing the working state of the preparation method of example 2 at the initial time at the station d.

FIG. 19 is a schematic view showing the working state of the preparation method of example 2 at the time +1 at the station d.

FIG. 20 is a schematic diagram showing the working state of the working position at time +2 at the d-position in the preparation method of example 2.

FIG. 21 is a schematic diagram showing the working state of the preparation method of example 2 at the e-station.

Fig. 22 is an axial sectional view, A-A sectional view and a B-direction view of another pellet type cigarette of example 2.

List of reference numerals:

1. smoke tube, 2, rear end spacer, 21, ring frame, 22, central diaphragm, 222, through hole or slit, 3, front end spacer, 31, ring plate, 311, "cross" shaped preformed gap, 32, central spacer, 321, "cross" shaped heating slit, 322, central tear-proof slit, 323, middle tear-proof slit, 324, end tear-proof slit, 4, first diaphragm loading mechanism, 41, first suction hole, 42, first suction cup, 43, first piston rod, 44, first upper cylinder, 45, first through hole, 5, smoke tube loading clamping mechanism, 6, support rod mechanism, 61, support end face, 62, support rod, 63, spring, 64, support cylinder, 7, rear end spacer delivery mechanism, 8, hopper, 81, valve, 9, smoke particles, 10, front end spacer delivery mechanism, 11, second diaphragm loading mechanism, 111, second suction hole, 112, second suction cup, 113, second piston rod, 114, second upper cylinder, 115, second through hole, I, self-plugging section III, filter tip III, cooling section.

Detailed Description

The present invention will be described in further detail with reference to examples.

It will be appreciated by those skilled in the art that the following examples are illustrative of the present invention and should not be construed as limiting the scope of the invention. The specific techniques or conditions are not identified in the examples and are performed according to techniques or conditions described in the literature in this field or according to the product specifications. The materials or equipment used are conventional products available from commercial sources, not identified to the manufacturer.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "coupled" to another element, it can be directly coupled to the other element or intervening elements may also be present. Further, "coupled" as used herein may include wirelessly coupled.

In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. The orientation or state relationship indicated by the terms "inner", "upper", "lower", etc. are orientation or state relationship based on the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "coupled," and "provided" are to be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically coupled; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention is understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Example 1

As shown in fig. 1, a first embodiment provides a self-plugging smoke generating segment I comprising: the smoke tube 1, the front end spacing piece 3 that sets up in the far lip end of tobacco tube 1, set up the back end spacing piece 2 of the nearly lip section tip of tobacco tube 1 (i.e. near lip end) and set up the fuming particle 9 between front end spacing piece 3 and the back end spacing piece 2. The smoke tube 1, the front end isolation sheet 3 and the rear end isolation sheet 2 are coaxially arranged.

As shown in fig. 2, the specific structure of the rear end spacer 2 is as follows: the rear end spacer 2 is formed in a sheet shape as a whole, and includes: an annular frame 21 and a central diaphragm 22 bonded to the distal lip end side of the annular frame 21. The "distal lip" is shown in front view in fig. 2 as the back of the ring frame 21. The edge of the central diaphragm 22 near the lip end is a region covered by the annular frame 21, the center of the side is a region uncovered by the annular frame 21, the region uncovered by the annular frame 21 is a circular shape, and a through hole or a slit 222 is arranged on the circular shape. Fig. 2 is a circular through hole. The size of the through holes is smaller than the average diameter of the smoke particles so as to block the smoke particles from entering the smoke particles to prevent leakage.

In fig. 2, the annular frame 21 is in the shape of a circular ring. The central diaphragm 22 is in the shape of a circular plate with the same diameter as the outer circle of the annular frame 21. When the central diaphragm 22 and the annular frame 21 are combined, the outer edges of the two completely overlap.

The material of the central membrane 22 is 25-100 g/m ² Is a tissue paper of (a). The material of the annular frame 21 is 200-500 g/m ² Is a paper jam. The purpose is that: the strength of the annular frame 21 is greater than the strength of the central membrane 22 so that when the rear end spacer 2 is filled into the pipe 1 by an interference fit, the annular frame 21 can withstand a certain compression and still be supported in the pipe 1.

As shown in fig. 3, the front end spacer 3 has the following specific structure: the front end spacer 3 is sheet-shaped, and includes: a ring-shaped sheet 31 and a center spacer 32 bonded to the proximal lip end side of the ring-shaped sheet 31. The "proximal lip end side" is shown as the back side of the ring segment 31 in the front view of fig. 3. Wherein, a widened cross-shaped reserved notch 311 is arranged at the center of the annular piece 31. The boundary lines of the cross-shaped reserved gaps 311 are smooth curves and have no broken lines, so that the supporting effect can be improved, and the tearing of a certain point can be prevented.

Cross-shaped reserved gap 311: 1. the radial strength of the annular sheet 31 is enhanced to enhance the supporting effect of the annular sheet 31, prevent the annular sheet 31 or the central spacer 32 from tearing, and 2, have the effect of relatively guiding the sheet type heating element so that it can be accurately inserted into the cross-shaped heating slit 321.

The center spacer 32 is provided with a cross-shaped heating slit 321 in the center, and the cross-shaped heating slit 321 is located in the center of the cross-shaped reserved notch 21. The function of the cross-shaped heating slit 321 is: 1 when the cigarette holder of the invention is heated by a central needle type or a central rod type heating element, when the heating element is inserted, the central separation piece 32 at the cross-shaped heating seam 321 is easy to deform and is not torn; 2 after the central heating element pulls out the cigarette, the deformed central part of the central separation sheet 32 can be restored to the original state or to the near original state by virtue of elasticity, and the particle fuming material in the cigarette is still blocked, so that the pollution to smoking articles or use environments is prevented.

In the center of the cross-shaped heating slit 321, a central tear-proof slit 322 forming a certain angle with the cross-shaped heating slit 321 is formed. As shown in fig. 3, the central tear-proof seam 322 is two lines passing through the center of the cross-shaped heating seam 321. Two central tear-resistant slits 322 are disposed crosswise. The two central tear-proof seams 322 and the cross-shaped heating seam 321 are in a shape like a Chinese character 'mi'. Each slit along the four directions from the center of the cross-shaped heating slit 321 is provided with 2 middle tearing-preventing slits 323 and 1 tail end tearing-preventing slits 324 which are distributed at intervals. The middle tear seam 323 and the end tear seam 324 are perpendicular to the cross-shaped heating seam 321 in communication therewith. The length c of the central tear-proof seam 322 is 1/10 of the length of the cross-shaped heating seam 321. Since the paper deformation amplitude is smaller as it is further from the center of the cross-shaped heating slit 321, the length a of the end tear-preventing slit 324 is 0.5 to 0.8 times the length b of the middle tear-preventing slit 323. The front end spacer 3 is in a round plate shape.

The combined effect of the central tear seam 322, the central tear seam 323, and the end tear seam 324 is: 1. when the heating element matched with the cigarette is a sheet type heating element or a cross-shaped heating element, the central separation sheet 32 can adaptively deform along the directions of the central tearing-proof seam 322, the middle tearing-proof seam 323 and the tail tearing-proof seam 324 by utilizing the elasticity of paper, and the central separation sheet 32 is not easy to tear; 2. after the sheet type heating element or the cross-shaped heating element is pulled out of the cigarette, the central separation sheet 32 can recover to the original state or recover to the near original state by virtue of the elasticity of paper, and the particle fuming material in the cigarette is still blocked, so that the pollution to a smoking set or the use environment is prevented; 3. meanwhile, the cross-shaped heating slit 321, the central tear-preventing slit 322, the middle tear-preventing slit 323, and the end tear-preventing slit 324 are not completely sealed, and thus allow air to flow in during suction.

The central spacer 32 may be 25 to 100g/m ² The loop sheet 31 may be selected from 200 to 500g/m ² Is a paper jam. The ring segments 31 have a greater strength than the central spacer 32.

As shown in fig. 4, the second embodiment provides a particulate cigarette, which comprises the self-plugging smoke generating segment I according to the first embodiment, and the cooling segment II and the filter segment III downstream of the self-plugging smoke generating segment I.

The outer tubes of the cooling section II and the filter tip section III can be an empty tube inserted into the smoke tube 1 or an empty tube integrally formed with the smoke tube 1.

As shown in fig. 5, the third embodiment provides another rear end spacer 2. The difference between fig. 5 and the rear end spacer 2 in fig. 2 is that: the circular through holes are replaced by "" shaped slits.

The advantages of the "" shaped slit are as follows: 1. during punching, the middle chip removal process of punching holes is omitted; 2. the -shaped gap can utilize the elastic action of the spacer paper, has better blocking action on the blocked particles, is simultaneously opened towards the near lip end direction under the suction action and the elastic action of the paper during suction, and has good action on the smooth passage of smoke like a parallel combined one-way valve; 3. the width of the -shaped gaps arranged at intervals on one side is slightly larger than that of the round through holes, so that the manufacturing density of the perforating cutting die on the paper die cutting plate is reduced, and the manufacturing difficulty is also reduced. 3. When the whole spacer is made of paper, the manufacturing cost of the paper knife template is obviously lower than the die opening cost of the plastic part metal die in the prior art.

As shown in fig. 6, the fourth embodiment provides another rear end spacer 2. The difference between fig. 6 and the rear end spacer 2 in fig. 2 is that: the circular through holes are replaced by "C" shaped slits.

The "C" shaped slit has the above-mentioned advantages of the "" shaped slit, and in addition has the following characteristics:

compared with the slit, the cutting die with the C-shaped slit is simpler to manufacture, because either one of the two cutting dies is used, so that the maximum nominal size of the actual openings of the cutting die is consistent to ensure the plugging effect on the granular materials, namely the maximum nominal size is smaller than the average diameter of the granules, and the C-shaped cutting die is formed at one time, so that the problems that the cutting tool at the vertical corner of the square hole cutting die is difficult to machine and form or the cutting tool at the right angle is difficult to machine are solved.

The effect of the closable particles is also better because square holes with the same side length and 'C' -shaped holes with the same diameter have the same largest nominal hole size, but the diagonal dimension of '' is larger than the diameter of the 'C' -shaped holes, i.e. the actual hole area of the square holes is larger than the largest actual dimension of the 'C' -shaped holes, so that the plugging effect of the 'C' -shaped holes is better.

As shown in fig. 7, a fifth embodiment provides a rear end spacer 2. The difference between fig. 7 and the rear end spacer 2 in fig. 2 is that: the rear end spacer 2 further includes: another annular frame 21, two annular frames 21 sandwich said central membrane 22.

As shown in fig. 8, a sixth embodiment provides a rear end spacer 2. The difference between fig. 8 and fig. 6 is that the rear end spacer 2 is: the annular inner edge line of the annular frame 21 is circular, and the annular outer edge line is regular octagon.

As shown in fig. 9, a seventh embodiment provides a front end spacer 3. The difference between fig. 9 and fig. 3 is that: the front end spacer 3 further comprises another annular sheet 31, two annular sheets 31 sandwiching said central spacer 32.

As shown in fig. 10, an eighth embodiment provides a front end spacer 3. The difference between fig. 10 and fig. 9 is that the front end spacer 3 is: the annular peripheral line of the annular sheet 31 is a regular octagon.

In fig. 8 or 10, the outer diameter of the regular octagon is slightly larger than the inner diameter of the smoke tube 1. When the front end isolation sheet 3 or the rear end isolation sheet 2 is installed in the smoke tube, the slight extrusion deformation of the convex end point of the regular polygon and the 'point contact' connection of the proper elastic deformation of the smoke tube 1 and the non-contact arc section of the regular polygon are utilized. This is easier to fit than the "line contact" between the disc-shaped spacers and the smoke tube 1 in the first embodiment, and the coupling is reliable. Meanwhile, the gaps between the regular polygon front end isolation sheet 3 or the rear end isolation sheet 2 and the circular arc of the smoke tube 1 can be ventilated and can isolate smoke particles.

Example 2

This example discloses a method of making a self-plugging smoke generating segment I in the first embodiment described above. The whole preparation method involves equipment comprising: the device comprises a first diaphragm filling mechanism 4, a smoke tube filling clamping mechanism 5, a supporting rod mechanism 6, a rear end spacer conveying mechanism 7, a hopper 8, a front end spacer conveying mechanism 10 and a second diaphragm filling mechanism 11.

In the invention, because the relative relation of the drawings of the stations is continuous and limited in space, in order to ensure that the drawings of the stations are large enough and can be seen clearly, four reference surfaces are specially set, wherein I is a diaphragm input reference surface, II is a diaphragm transmission reference surface, III is a reference surface for installing an isolation diaphragm, and IV is a diaphragm support reference surface. In each station, the datum planes are on the same horizontal plane.

In fig. 11, at station a, the first suction cup 42 is negative pressure to attract a sheet of rear end spacer 2 for use. The specific operation is as follows:

the first film loading mechanism 4 includes: a first upper cylinder 44, a first piston rod 43 and a first suction cup 42 which are coupled to each other. The rear end spacer transport mechanism 7 stores the rear end spacer 2. The rear end spacer transport mechanism 7 is used to transport the rear end spacer 2 to the diaphragm loading mechanism 4. The specific structure of the rear end spacer conveyance mechanism 7 is not limited.

The first piston rod 43 of the first upper cylinder 44 is a shaft-like member having a first through hole 45 in the center thereof. The first through hole 45 communicates with a negative pressure source. The first suction cup 42 is installed at the lower part of the first upper cylinder 44. The first suction cup 42 is provided with a first air suction hole 41 extending in the axial direction. The first through hole 45 communicates with the first suction hole 41. The first air suction holes 41 in the first suction cup 42 are uniformly distributed at the position of the first suction cup 42 close to the offset edge, so that the annular frame 21 of the rear end spacer 2 to be mounted is ensured to be contacted with the first air suction holes 41. This ensures that the first suction cup 42 normally sucks the rear end spacer 2 sent under the first suction cup 42 when negative pressure is transmitted from the first through hole 45 to the first suction hole 41. In the initial position, the bottom end surface of the first suction cup 42 is flush with the reference surface I. When the rear end spacer 2 is transported out of the rear end spacer transport mechanism 7 to the position where the diaphragm loading mechanism 4 is located, one rear end spacer 2 is sucked by the first suction cup 42, causing a pressure change in the first suction hole 45, thereby triggering the first upper cylinder 44 and the first suction cup 42 in the pneumatic system to raise the height of one rear end spacer 2 upward. Thereafter, the rear end spacer transport mechanism 7 exits this station.

The IV reference plane is as follows: an axially extending support rod 62 is disposed within the support rod mechanism 6. The upper end of the support rod 62 is coupled to the support end surface 61 by a spring 63. The lower end of the support rod 62 is coupled to a support cylinder 64 by a spring 63. In the initial state, the support end surface 61 is flush with the support reference seat end surface 6, and the spring 63 is in a compressed state. The support bar 62 is in the lowermost position. At this time, the work of the station a is completed. The whole set of installation mechanism (comprising the first diaphragm filling mechanism 4 and the supporting rod mechanism 6) is transferred to the next station.

As shown in fig. 12 to 15, in the process of b station, initial time-b station and +3 time, filling the smoke tube 1 and the rear end spacer 2, or turning from a station to b station, the smoke tube filling clamping mechanism 5 completes the filling of the smoke tube 1.

The smoke tube loading clamping mechanism 5 comprises a smoke tube loading mechanism and a smoke tube clamping mechanism. The smoke tube clamping mechanism is provided with an axial smoke tube accommodating cavity.

In fig. 12, at the station b, at the initial moment, the first suction cup 42 attracts a piece of rear end spacer 2 for standby under the action of negative pressure. Below the I reference, the smoke tube loading and clamping mechanism 5 loads (clamps, inserts or clamps) the smoke tube 1 into the smoke tube clamping mechanism and transfers it to the position shown in fig. 12, so that the smoke tube 1 is coaxially arranged with the first piston rod 43 and the support rod 62 supporting the cylinder 64, and so that the distal lip end of the smoke tube 1 is vertically placed upward. The smoke tube loading mechanism may be of conventional design, such as a robotic arm or the like, but may of course be a continuously fed tube conveyor feeding mechanism.

In fig. 13, at station b, +1, end face support is performed. The support cylinder 64 arranged on the support rod mechanism 6 obtains an action instruction, and the support rod 62 drives the support end surface 61 to extend into the smoke tube 1, so that the top of the support end surface 61 is equal to the far lip end of the smoke tube 1.

Fig. 14, at station b, +2, the rear end spacer 2 is installed. Under the action of the first upper cylinder 44 above the rear end isolation sheet 2, the first piston rod 43 pushes the first sucker 42 and drives the rear end isolation sheet 2 adsorbed below the first sucker to be installed in the smoke tube 1. Meanwhile, the support cylinder 64 below the reference plane IV is placed in an intermediate position air pressure state, at which time the support end surface 61 and the support rod 62 and the spring 63 are pushed downward by the first piston rod 43. The spring 63 adds a certain damping during the compression, and assists the back-end spacer 2 to move down together in a stable parallel fashion to a predetermined position so that it does not skew during the downward movement. The region above the rear end spacer 2 in the smoke tube 1 forms a smoking agent accommodating region.

Fig. 15, reset at station b, +3. First, the negative pressure in the first vent hole 45 in the first piston rod 43 is closed so that the first suction cup 42 is separated from the rear end spacer 2, and then the first upper cylinder 44 is returned to the reference I position so that the bottom end surface of the first suction cup 42 is flush with the reference I.

In fig. 16 to 17, the smoking particles 9 are filled at c-station, initial time to c-station, +1 time.

In fig. 16, at station c, the smoke tube 1 is initially filled with smoke particles 9 using a quantitatively fillable hopper 8. When the hopper 8 runs to the position that the hopper opening is right over the center of the far lip end of the smoke tube 1, a filling signal is obtained, the valve 81 of the hopper 8 is opened, and quantitative fuming particles 9 in the hopper 8 can be injected into a fuming agent accommodating area above the rear end isolating sheet 2 in the smoke tube 1.

In fig. 17, in the c+1 station, the hopper 8 loading mechanism is withdrawn from the distal lip end of the smoke tube 1, the second diaphragm loading mechanism 11 is operated near the distal lip end of the smoke tube 1, and the front-end spacer transport mechanism 10 is simultaneously fed to the front-end spacer 2, specifically as follows: the second film loading mechanism 11 includes: a second upper cylinder 114, a second piston rod 113 and a second suction cup 112 connected to each other. The hopper 8 filled with fuming particles 9 is withdrawn above the distal lip of the tube 1. Meanwhile, before the second diaphragm loading mechanism 11 is shifted above the far lip end of the smoke tube 1, the front-end spacer conveying mechanism 10 conveys the front-end spacer 2 from the direction perpendicular to the paper surface to below the second suction cup 112, and one front-end spacer 2 is sucked by the second suction cup 112, causing a pressure change in the second through hole 115. Then, the second upper cylinder 114 lifts the second suction cup 112 together with the front end spacer 2 to the highest limit position so that the lower edge of the front end spacer 2 coincides with the reference 1, and thereafter the second diaphragm loading mechanism 11 moves to the center position above the distal lip end of the smoke tube 1.

As shown in fig. 18 to 20, the front end spacer 2 is loaded at the time d from the initial time to the time d and at the time +2.

At station d, initially, the second diaphragm loading mechanism 11 is rotated or moved directly over the distal lip of the tube 1 and the second piston rod 113 and second suction cup 112 are coincident with the tube 1 axis, as shown in fig. 18.

As shown in fig. 19, at the time +1 of the d station, the second diaphragm loading mechanism 11 pushes the second piston rod 113 and the second suction cup 112 to move downward together, and pushes the front end spacer 3 to the thickness of the next front end spacer 3 under the action of negative pressure. Then the suction of the negative pressure in the second through hole 115 is stopped, and the front end spacer 3 loses the suction of the second suction cup 112. At this station, the front end spacer 3 is moved downward by the pushing of the second piston rod 113 to fit into the distal lip end of the smoke tube 1, so that the travel is short (only the thickness of one front end spacer 3), and the relative auxiliary support of the smoke particles 9 is also provided below the front end spacer 3, and the maximum outer diameter of the front end spacer 3 is in proper interference fit with the diameter of the inner wall of the smoke tube 1. Therefore, even though the front end spacer 3 is not supported by the support end face 61 under the same as the rear end spacer 2, the front end spacer 3 does not turn over. Thus, the final blocking of the smoking particles 9 by the front end spacer 3 can be achieved.

As shown in fig. 20, at the d station, +2, the second upper cylinder 114 lifts the second piston rod 113 to the highest position together with the second suction cup 112. The support cylinder 64 moves the support rod 62 down to the lowest position together with the support end surface 61 coupled to the upper end thereof to facilitate the later release of the smoke tube 1.

The second diaphragm loading mechanism 11 is then withdrawn from the station.

Fig. 21, e station:

after the smoke tube filling clamping mechanism 5 is removed, the manufacturing of the self-plugging smoke generating section I is completed, and a self-plugging smoke generating section I is obtained. In the self-plugging smoke generating section I, a rear end isolation sheet 2 is arranged on a lip-near section of the smoke tube 1, and a cavity is reserved at the lip-near end of the smoke tube 1. And then, filling a filter tip section III into the near lip end of the smoke tube 1 of the self-plugging smoke section I, and reserving a cavity as a cooling section II to obtain the finished granular cigarette.

The whole set of mechanism enters the installation preparation of the next smoke tube 1 to finish one cycle of work.

The positions of the stations can be circumferentially distributed on the circumference of the circle. The feeding mechanisms of the rear end spacer conveying mechanism 7, the hopper 8 and the front end spacer conveying mechanism 10 can be conveyed to the corresponding stations from outside to inside along the circular radial direction. When the rear end spacer 2 and the front end spacer 3 are installed in the smoke pipe 1, which face of the rear end spacer 2 and the front end spacer 3 faces the near lip end of the smoke pipe 1 is determined according to the need.

In an alternative embodiment, at the time d and +1, the front end spacer 2 installed in the smoke tube 1 may be replaced with the rear end spacer 2 to prepare another granular cigarette, as shown in fig. 22. The particle type cigarette comprises a self-plugging smoke generating section I, a cooling section II and a filter tip section III, wherein the cooling section II and the filter tip section III are arranged at the downstream of the self-plugging smoke generating section I. The self-plugging smoke generating segment I comprises: the smoke tube 1, the rear end spacer 2 arranged at the far lip end of the smoke tube 1, the rear end spacer 2 arranged at the near lip section of the smoke tube 1 and the particle type smoke substance arranged between the two rear end spacers 2. The smoke tube 1 and the two rear end isolating sheets 2 are coaxially arranged.

Compared with the same part of the existing granular cigarette, the semi-finished granular heating cigarette produced by the invention has obviously shortened occupied length, and all degradable paper materials are used, so that the semi-finished granular heating cigarette is more environment-friendly. The production equipment of the method is put into operation at one time, and granular cigarettes can be continuously produced.

Claims (9)

1. A self-plugging smoke generating segment (I) with spacers, characterized in that the self-plugging smoke generating segment (I) comprises: the smoke generating device comprises a smoke pipe (1), a plugging piece arranged at the far lip end of the smoke pipe (1), a rear end isolation sheet (2) arranged at the near lip section of the smoke pipe (1) and a smoke generating substance arranged between the plugging piece and the rear end isolation sheet (2);

the smoke tube (1), the blocking piece and the rear end isolation sheet (2) are coaxially arranged;

wherein the rear end spacer (2) includes: an annular frame (21) and a central diaphragm (22) provided on the distal lip end side of the annular frame (21); the edge of the near-lip side of the central diaphragm (22) is a region covered by the annular frame (21), the center of the near-lip side of the central diaphragm (22) is a region uncovered by the annular frame (21), and a through hole or a gap (222) is arranged on the region uncovered by the annular frame (21).

The plugging piece is the same as the rear end isolation sheet (2), or the plugging piece is a front end isolation sheet (3);

the front end spacer (3) includes: an annular piece (31) and a central spacer (32) provided on the proximal lip end side of the annular piece (31); the annular sheet (31) is provided with a cross-shaped reserved gap (311) in the center, a cross-shaped heating slit (321) is arranged in the center of the central separation sheet (32), the cross-shaped heating slit (321) is located in the center of the cross-shaped reserved gap (311), a central tearing-prevention slit (322) which is at a certain angle with the cross-shaped heating slit (321) is formed in the center of the cross-shaped heating slit (321), and the central tearing-prevention slit (322) passes through the center of the cross-shaped heating slit (321).

2. A self-plugging smoke generating segment (I) with separator according to claim 1, wherein the central tear preventing seam (322) is two intersecting, the central tear preventing seam (322) and the cross heating seam (321) are together in a "meter" shape.

3. A self-plugging smoke generating segment (I) with separator according to claim 1, wherein a plurality of middle tear-proof slits (323) communicated with the cross-shaped heating slit (321) are arranged on the cross-shaped heating slit.

4. A self-plugging smoke generating segment (I) with separator according to claim 1, wherein the end of the heating slit (321) is provided with an end tear preventing slit (324) communicating therewith.

5. A self-plugging smoke generating segment (I) with separator sheet according to claim 1, characterized in that the outer circumference of the annular frame (21) is circular or regular polygonal, and the outer circumference of the annular sheet (31) is circular or regular polygonal.

6. A self-plugging smoke generating segment (I) with spacers according to claim 1, wherein the edges of the cross-shaped preformed gap (311) are rounded curves.

7. A self-plugging smoke generating segment (I) with separator according to claim 1, wherein the front separator (3) and the rear separator (2) are both paper, the strength of the annular frame (21) is greater than the strength of the central membrane (22), and the strength of the annular sheet (31) is greater than the strength of the central separator (32).

8. A particulate cigarette comprising a self-plugging smoking segment (I) according to any one of claims 1 to 7, the smoking material being a smoking particle.

9. A method of making a self-plugging smoke generating segment (I) according to any one of claims 1 to 7, wherein said method of making comprises the steps of:

in the station a, a first sucker (42) attracts a rear end isolation sheet (2) for standby;

at the station b, a smoke tube (1) is arranged in a smoke tube filling clamping mechanism (5), so that the far lip end of the smoke tube (1) is vertically upwards placed;

the supporting rod (62) drives the supporting end surface (61) to extend into the smoke tube 1, so that the top of the supporting end surface (61) is equal to the far lip end of the smoke tube (1);

the first sucking disc (42) is used for loading a piece of rear end isolation sheet (2) which is sucked by negative pressure into the smoke tube (1), meanwhile, the supporting rod (62) drives the supporting end face (61) to assist in supporting the rear end isolation sheet (2) to move downwards to a preset position in the smoke tube (1) together in a stable and parallel manner, so that the rear end isolation sheet (2) cannot be inclined in the downwards moving process, and a fuming agent accommodating area is formed above the rear end isolation sheet (2);

so that the first sucker (42) is separated from the rear end isolation sheet (2);

at station c, filling fuming particles (9) in a fuming agent accommodating area above a rear end isolation sheet (2) in the smoke tube (1) by using a hopper (8) capable of being filled quantitatively;

in the station d, the second sucker (112) attracts a front end isolation sheet (3) for standby;

the second sucker (112) moves to the position right above the far lip end of the smoke tube (1);

a front end isolation sheet (3) which is sucked by the second sucker (112) under negative pressure is arranged at the far lip end of the smoke tube (1); then the second sucker (112) is separated from the front end isolation sheet (3), and the supporting end surface (61) is separated from the auxiliary supporting state of the rear end isolation sheet (2) under the driving of the supporting rod (62);

and in the station e, the smoke tube filling and clamping mechanism (5) is separated from the smoke tube (1).