CN111920088B - Filter element for tobacco products, and method and device for producing a filter element - Google Patents
Filter element for tobacco products, and method and device for producing a filter element Download PDFInfo
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- CN111920088B CN111920088B CN201910395068.7A CN201910395068A CN111920088B CN 111920088 B CN111920088 B CN 111920088B CN 201910395068 A CN201910395068 A CN 201910395068A CN 111920088 B CN111920088 B CN 111920088B
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- 235000019505 tobacco product Nutrition 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 72
- 238000001914 filtration Methods 0.000 claims abstract description 62
- 239000000779 smoke Substances 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 230000000391 smoking effect Effects 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 30
- 238000011049 filling Methods 0.000 claims description 29
- 238000007493 shaping process Methods 0.000 claims description 7
- 239000002861 polymer material Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 238000003197 gene knockdown Methods 0.000 claims description 3
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 3
- 239000004626 polylactic acid Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 210000000214 mouth Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003571 electronic cigarette Substances 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
The invention provides a filter component of a tobacco product, and a method and equipment for manufacturing the filter component, wherein a hollow filter segment and a solid filter segment which are sequentially arranged along the axis of a wrapping layer are arranged in a cylindrical wrapping layer of the filter component; the outer side surface of the solid filtering section and the wrapping layer form at least one clearance channel; the hollow filtering section is arranged between the hollow filtering section and the solid filtering section, and the hollow filtering section is used for communicating the axial through hole with the at least one clearance channel, so that an airflow channel is formed. By utilizing the device and the system, the mixing effect of each component in the smoke can be improved, and the smoking experience of consumers is improved.
Description
Technical Field
The invention belongs to the field of tobacco products, and particularly relates to a filter component of a tobacco product, and a method and equipment for manufacturing the filter component.
Background
This section is intended to provide a background or context to the embodiments of the invention. The description herein is not admitted to be prior art by inclusion in this section.
Currently, in tobacco products, the construction and arrangement of the filter elements has a significant impact on the smoking experience of the consumer. The reason is that the smoke generated by the tobacco products contains a plurality of irritant component substances, the initial state of the component substances is not uniformly dispersed, and the problem of local overhigh concentration exists to a great extent. When a consumer smokes smoke with such a non-uniform concentration distribution, an unpleasant and unpleasant feeling is easily generated, resulting in a poor consumption experience of the tobacco product.
Disclosure of Invention
In order to solve the existing problems, the invention provides a filter component of a tobacco product, which generates turbulence and mixing on smoke by utilizing a hollow section with a specific size and further improves the uniformity of each component in the smoke. Meanwhile, the invention also provides a method for manufacturing the filter component and equipment specially used for executing the manufacturing method, which solves the problem that the gap size and consistency among components are difficult to regulate and control in the existing tobacco product filter segment production.
The present invention provides the following.
The invention provides a filter component of a tobacco product, which comprises a cylindrical wrapping layer and is characterized in that a hollow filter segment and a solid filter segment which are sequentially arranged along the axis of the wrapping layer are arranged in an inner cavity of the wrapping layer; wherein,
the hollow filtering section is provided with an axial through hole, and the outer side surface of the solid filtering section and the wrapping layer form at least one clearance channel;
a hollow section is arranged between the hollow filtering section and the solid filtering section and is used for communicating the axial through hole with at least one clearance channel, so that an airflow channel is formed.
Preferably, the hollow filter segment is formed as: a cylindrical hollow bar made of a polymer material, wherein the polymer material comprises one or more of the following: acetate tow, polypropylene tow, and polylactic acid tow.
Preferably, the outer diameter of the hollow filtering section is 5-10 mm, and the size ratio of the aperture of the axial through hole to the outer diameter of the hollow filtering section is 20-90%.
Preferably, the solid filter segment is formed into a cylindrical bar, and at least one axial groove is formed on the outer side surface of the cylindrical bar, so that at least one clearance channel is formed between the at least one axial groove and the wrapping layer wrapping the outer side of the solid filter segment.
Preferably, the radial depth of the clearance channels is between 0.2 and 5mm and the area ratio between the total cross-sectional area of at least one clearance channel and the cross-sectional area of the solid filter segment is between 5 and 80%.
Preferably, the area ratio between the total cross-sectional area of the at least one clearance channel and the cross-sectional area of the axial through hole of the hollow filter segment is 60% to 200%.
Preferably, the hollow section has a section length of 0.2 to 10mm.
Preferably, the thickness of the wrapping layer is 0.2 to 1mm.
In a second aspect of the invention, there is provided a smoking article characterised in that the smoking article comprises a filter element according to any one of claims 1 to 8.
In a third aspect of the invention, there is provided a method for manufacturing a filter element for application to a smoking article, comprising:
sequentially inputting a plurality of filter units onto a sheet wrapping material, wherein each filter unit of the plurality of filter units is formed by a hollow filter section, a filling section and a solid filter section which are sequentially arranged;
passing the sheet wrapper and the plurality of filter units through a reject assembly at a uniform velocity;
adjusting the rejection assembly to enable the rejection assembly to automatically and continuously knock down the filling sections in the plurality of filtering units, so that the same-size intervals are formed between the hollow filtering sections and the solid filtering sections in the plurality of filtering units;
and coating the hollow filter segments and the solid filter segments in the plurality of filter units by using the sheet wrapping material, and forming the filter component after the cutting operation.
Preferably, the method further comprises the following steps: through the speed reduction and shaping operation, the hollow filtering section, the filling section and the solid filtering section of each filtering unit in the plurality of filtering units reach the placing state of head-to-tail fit.
In a fourth aspect of the invention, there is provided an apparatus for manufacturing a filter element for application to a smoking article, comprising:
the feeding assembly is used for sequentially inputting the plurality of filtering units onto the sheet wrapping material, wherein each filtering unit in the plurality of filtering units is formed by a hollow filtering section, a filling section and a solid filtering section which are sequentially arranged;
the conveying assembly is used for enabling the sheet-shaped wrapping materials and the plurality of filtering units to pass through the rejecting assembly at a constant speed;
the rejecting assembly is used for automatically and continuously knocking off the filling sections in the plurality of filtering units so as to form intervals with the same size between the hollow filtering sections and the solid filtering sections in the plurality of filtering units;
and the forming assembly is used for enabling the sheet-shaped wrapping material to wrap the hollow filter sections and the solid filter sections in the plurality of filter units and forming the filter component after the cutting operation.
Preferably, the apparatus further comprises:
the splayed deceleration crack is arranged above the conveying assembly and used for performing deceleration shaping operation on hollow filter sections, filling sections and solid filter sections in the plurality of filter units placed on the flaky wrapping material so as to enable the hollow filter sections, the filling sections and the solid filter sections to be in a placing state of head-to-tail fit.
Preferably, the contact surfaces of the splayed deceleration slot with the hollow filter section, the filler section and the solid filter section are formed of a flexible material.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects: the filter element of the tobacco product can change the flow path of smoke in the filter element, the smoke is sprayed from the axial through hole of the hollow filter segment positioned at the upstream of the smoke to the end surface of the solid filter segment 102 positioned at the downstream of the smoke, and radial turbulence is formed in the hollow segment after the smoke is blocked and rebounded by the end surface, so that the mixing effect of components in the smoke is improved. Further, the flue gas after the intensive mixing finally gets into the oral cavity through at least one clearance passageway of solid filter section, and then each composition mixes more evenly in the flue gas, has improved consumer's smoking experience. According to the method and the equipment for manufacturing the filter part, the hollow sections are replaced by the filling columns to participate in arrangement and combination of all the components, and the filling columns are removed after the dimensional relation is determined, so that the quality stability of the filter part is improved, particularly the size of the gap joints in the filter sections produced in batches is ensured to be consistent, and meanwhile, the production efficiency is improved.
It should be understood that the above description is only an overview of the technical solutions of the present invention, so as to clearly understand the technical means of the present invention, and thus can be implemented according to the content of the description. In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, embodiments of the present invention are described below.
Drawings
The advantages and benefits described herein, as well as other advantages and benefits, will be apparent to those of ordinary skill in the art upon reading the following detailed description of the exemplary embodiments. The drawings are only for purposes of illustrating exemplary embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like elements throughout. In the drawings:
FIG. 1 is a schematic view of a filter element of a smoking article according to a first embodiment of the invention;
FIG. 2 is another schematic structural view of a filter element of a smoking article according to a first embodiment of the invention;
FIG. 3 is a schematic view of another configuration of a filter element of a smoking article according to a first embodiment of the invention;
FIG. 4 is a schematic flow diagram of a method for manufacturing a filter element according to a third embodiment of the invention;
FIG. 5 is a schematic view showing the construction of an apparatus for manufacturing a filter member according to a fourth embodiment of the present invention;
fig. 6 is another configuration diagram of an apparatus for manufacturing a filter member according to a fourth embodiment of the present invention.
In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the present invention, the embodiments and features in the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example one
Referring to fig. 1, a schematic structural diagram of a filter element 1 of a tobacco product according to an embodiment of the present invention is shown, which includes a cylindrical wrapping layer 101, a hollow filter segment 104 and a solid filter segment 102, which are sequentially arranged along an axis of the wrapping layer 101, are disposed in an inner cavity of the wrapping layer 101; wherein,
as shown in fig. 1, the wrapping layer 101 surrounds and is attached to the outer side surface of the hollow filter segment 104, the hollow filter segment 104 is provided with an axial through hole 105, wherein one end of the axial through hole 105 of the hollow filter segment 104 is communicated with the upstream of the flue gas, and the other end is communicated to the inside of the filter component 1. Preferably, the hollow filter section is formed as: a cylindrical hollow bar made of a polymer material, wherein the polymer material comprises one or more of the following: acetate tow, polypropylene tow, and polylactic acid tow. Alternatively, the hollow filter segment 104 and the axial through hole 105 therein in the present invention are not limited to a cylindrical shape, and may also be a polygonal column or a truncated cone, for example, which is not limited in the present application. Preferably, referring to the filter element 1 shown in fig. 2, the outer diameter of the hollow filter segment is between 5 and 10mm, and the size ratio of the aperture of the axial through hole to the outer diameter of the hollow filter segment is between 20% and 90%.
As shown in fig. 1, at least a portion of the outer side of the solid filter segment 102 is attached to the wrapping layer 101, and the outer side of the solid filter segment 102 and the wrapping layer 101 form at least one gap channel 103, wherein one end of the at least one gap channel 103 of the solid filter segment 102 is communicated to the inside of the filter component 1, and the other end can be communicated to the oral cavity of the consumer. Preferably, referring to the filter element 1 shown in fig. 3, the solid filter segment 102 may be formed as a cylindrical bar, and at least one axial groove is formed on an outer side surface of the cylindrical bar, so that at least one clearance channel 103 is formed between the at least one axial groove and the wrapping layer 101 wrapping the outer side of the solid filter segment. Optionally, the at least one axial groove may be designed to be straight or curved, and when the at least one axial groove is designed to be curved, the length of the air passage can be increased, and the cooling effect of the filter element can be improved. Alternatively, the shape of the solid filter segment 102 in the present invention is not limited to a cylindrical shape, and may be, for example, a polygonal prism shape or a truncated cone shape, which is not particularly limited in this application. Preferably, the radial depth of the interstitial channels is comprised between 0.2 and 5mm and the ratio between the total cross-sectional area of at least one interstitial channel and the cross-sectional area of the solid filter segment is comprised between 5 and 80%. Preferably, the ratio between the total cross-sectional area of the at least one clearance channel and the cross-sectional area of the axial through hole of the hollow filter segment is between 60% and 200%.
As shown in fig. 1, a hollow section 106 is provided between the hollow filter section 104 and the solid filter section 102 for communicating the axial through hole 105 with the at least one clearance passage 103, thereby forming an air flow passage. That is, when the filter element of the tobacco product is assembled, the hollow filter segment 104 and the solid filter segment 102 are not in close contact, but a gap is artificially arranged between the hollow filter segment 104 and the solid filter segment 102, the gap and the wrapping layer 101 wrapping the outer side enclose to form the hollow segment 106, the inner space of the hollow segment 106 is filled with air, no special filler is placed, and the hollow segment 106 is communicated with the axial through hole 105 of the hollow filter segment 104 at the upstream of the smoke gas and is communicated with at least one gap channel 103 of the solid filter segment 102 at the downstream of the smoke gas, so that the smoke gas flowing out of the axial through hole 105 of the hollow filter segment 104 passes through the hollow segment 106, enters the at least one gap channel 103 at the periphery of the solid filter segment 102, and is finally discharged from the end of the at least one gap channel 103. Preferably, the length of the hollow section 106, i.e. the distance between the downstream end surface of the flue gas of the hollow filter section and the upstream end surface of the flue gas of the solid filter section, is between 0.2 and 10mm.
Preferably, the thickness of the wrapping layer is between 0.2 mm and 1mm, which is beneficial for providing the filter element with higher axial compressive strength.
The filter element of the tobacco product of the present application allows to modify the flow path of the smoke in the filter element, the smoke being ejected from the axial through hole 105 of the hollow filter segment 104 upstream of the smoke towards the end face of the solid filter segment 102 downstream of the smoke, being blocked and rebounded by this end face to create radial turbulence in the hollow segment 106, thus improving the mixing effect of the components of the smoke. Further, the fully mixed flue gas finally enters the oral cavity through at least one clearance channel of the solid filtering section 102, so that the components in the flue gas are mixed more uniformly, and the smoking experience of consumers is improved.
Example two
The invention also provides a smoking article comprising a filter element 1 as described above and any one or more smoke-generating devices.
In this embodiment, the smoke generating device may be a conventional combustion type cigarette product, or may be a novel heating device for heating a non-combustion cigarette product or an electronic cigarette smoke, and the application does not specifically limit this.
EXAMPLE III
Referring to fig. 4, a flow chart of a processing method 400 of a filter element according to a third embodiment of the present invention is shown, wherein the filter element is applied to a tobacco product, and the method includes:
as shown in fig. 4, the method 400 includes the steps of inputting 401 a plurality of filter units onto a sheet wrapper in sequence, wherein each filter unit of the plurality of filter units is formed of hollow filter segments, packed segments, and solid filter segments arranged in sequence; specifically, the hollow filter section, the filling section and the solid filter section can be sequentially output to the sheet wrapping material from the storage bin according to a preset placing rule to form a filter unit;
preferably, after step 401, the method 400 may further comprise: through the speed reduction and shaping operation, the hollow filtering section, the filling section and the solid filtering section of each filtering unit in the plurality of filtering units reach the placing state of head-to-tail fit. Specifically, the deceleration shaping operation may be performed using a splay-shaped deceleration nip disposed in a traveling direction of the plurality of filter units, wherein the hollow filter section, the filling section, and the solid filter section enter from a wider end opening in the splay-shaped deceleration nip and exit from a narrower end of the splay-shaped deceleration nip, wherein the narrower end of the splay-shaped deceleration nip coincides with a width of the hollow filter section. Inside this splayed speed reduction crack, through the inboard frictional force with passing through the object of crack, reduce the speed of preceding object and then make behind the object closely push against behind the preceding object and form and paste tight range.
As shown in fig. 4, method 400 includes step 402, passing a sheet wrapping material and a plurality of filtration units through a reject assembly at a uniform velocity; specifically, can be with slice wrapping material tiling on the conveyer belt, a plurality of filter unit have evenly been put on the slice wrapping material, and each filter unit contains hollow filter section, filling section and the solid filter section of putting in order, drives slice wrapping material by the conveyer belt, and then drives a plurality of filter unit motion together to make slice wrapping material and a plurality of filter unit at the uniform velocity through rejecting the subassembly.
As shown in fig. 4, the method 400 includes the steps of adjusting 403 the rejecting assembly to automatically and continuously knock down the filler segments of the plurality of filter units to form a same size space between the hollow filter segments and the solid filter segments of the plurality of filter units;
as shown in fig. 4, the method 400 includes the step 404 of wrapping a sheet wrapping material around hollow filter segments and solid filter segments in a plurality of filter units and forming a filter element by a slitting operation. For example, the sheet wrapper passes through the glue and crimp openings to provide a continuous strip of filter segments with gap segments, which strip is further severed to provide individual filter segments.
In the manufacturing method of the filter part, the filling columns are adopted to replace the hollow sections to participate in the arrangement and combination of all the components, so that the quality stability of the filter part is further improved, especially the width consistency of the hollow sections of the filter sections produced in batches is ensured, and the production efficiency is also improved. The conventional production method is to arrange each component of the filtering section in a reserved space directly and then enter a rolling link, so that the problem that the reserved space distance of each component is inconsistent due to unstable operation of equipment is inevitable, and higher requirements are further provided for the operation precision of the equipment.
Example four
Referring to fig. 5 and 6, there are shown schematic structural views of an apparatus 2 for manufacturing a filter element applied to a tobacco product according to a fourth embodiment of the present invention, including:
as shown in fig. 5, the apparatus 2 includes a conveying assembly, which specifically includes a plurality of moving hubs (110, 111, 107, 108 in fig. 5) and a conveying belt 114, the sheet-shaped wrapping material 101 is laid on the conveying belt 114, a plurality of filtering units 113 are uniformly placed on the sheet-shaped wrapping material 101, each filtering unit includes a hollow filtering section 104, a filling section 112 and a solid filtering section 102, which are sequentially placed, the conveying belt drives the sheet-shaped wrapping material 101, and further drives the filtering units 113 to move forward in the arrow direction, so that the sheet-shaped wrapping material 101 and the filtering units 113 pass through the removing assembly 109 at a constant speed.
As shown in fig. 6, the apparatus 2 includes a removing component 109, which is specifically composed of a removing arm 1091 and a transmission system 1092 for controlling the removing arm 1091 to reciprocate, the removing arm 1091 is disposed at the conveying component, the reciprocating direction of the removing arm 1091 is perpendicular to the uniform speed traveling direction of the filling section 112, and the time of one reciprocating motion performed by the removing arm 1091 is consistent with the time interval required by the filling section 112 passing through the removing arm 1091 in two adjacent filtering units, so that the removing arm 1091 can automatically and continuously knock off each filling section 112 passing through the removing arm 1091, thereby forming the same size interval between the hollow filtering section 104 and the solid filtering section 102 in each filtering unit 113;
the apparatus 2 further comprises a feed assembly for sequentially feeding a plurality of filter units onto the sheet wrapper. Specifically, the hollow filter section, the filling section and the solid filter section can be sequentially output to the sheet wrapping material from the storage bin according to a preset placing rule to form a filter unit;
the apparatus 2 further includes a forming assembly for wrapping the sheet wrapper around the hollow filter segments and the solid filter segments of the plurality of filter elements and forming the filter element after a slitting operation. For example, the sheet wrapper material is passed through the glue and crimp openings to produce a continuous strip of filter segments with gap segments, which strip is then cut to produce individual filter segments.
Preferably, the device 2 may also comprise
The splayed deceleration crack is arranged above the conveying assembly and used for performing deceleration shaping operation on hollow filter sections, filling sections and solid filter sections in the plurality of filter units arranged on the sheet wrapping material to enable the hollow filter sections, the filling sections and the solid filter sections to be in a head-tail fit arrangement state. The splayed deceleration crack is arranged into a splayed structure, wherein the hollow filtering section, the filling section and the solid filtering section enter from the opening at the wider end of the splayed deceleration crack and exit from the narrower end of the splayed deceleration crack, and the narrower end of the splayed deceleration crack is consistent with the width of the hollow filtering section. Inside this splayed speed reduction crack, through the inboard frictional force with passing through the object of crack, reduce the speed of preceding object and then make behind the object closely push against behind the preceding object and form and paste tight range. Through the splayed design, the problem that the hollow filter section, the filling section and the solid filter section cannot smoothly enter the speed reduction crack due to the position deviation of the hollow filter section, the filling section and the solid filter section on the conveying belt is solved.
Preferably, the contact surfaces of the splayed deceleration slot with the hollow filter section, the filler section and the solid filter section are formed of a flexible material. Optionally, the conveying belt is provided with guardrails around to prevent conveyed articles from falling.
In the equipment for manufacturing the filter components, the width of the hollow part in each batch of filter components is ensured to be consistent by adopting the removing device, and meanwhile, the production efficiency is improved. The conventional production method is to directly arrange each component of the filtering section in a reserved space, then enter a rolling link, inevitably meet the inconsistency of the reserved space distance of each component caused by the unstable operation of the equipment, further put forward higher requirements on the operation precision of the equipment, and adopt the equipment to greatly reduce the production complexity and further improve the working efficiency and the product stability.
While the spirit and principles of the invention have been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, nor is the division of aspects, which is for convenience only as the features in such aspects may not be combined to benefit. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (13)
1. A filter component of a tobacco product comprises a cylindrical wrapping layer, and is characterized in that a hollow filter section and a solid filter section which are sequentially arranged along the axis of the wrapping layer are arranged in the inner cavity of the wrapping layer; wherein,
the hollow filtering section is provided with an axial through hole, and the outer side surface of the solid filtering section and the wrapping layer form at least one clearance channel;
a hollow section is arranged between the hollow filter section and the solid filter section and is used for communicating the axial through hole with the at least one clearance channel, so that an airflow channel is formed;
a gap is arranged between the hollow filtering section and the solid filtering section, and the gap and a wrapping layer wrapped outside the gap are arranged in a surrounding manner to form the hollow section;
the length of the hollow section is 0.2-10 mm;
the smoke is sprayed from the axial through hole of the hollow filter section positioned at the upstream of the smoke to the end surface of the solid filter section positioned at the downstream of the smoke, and radial turbulence is formed in the hollow section after the smoke is blocked and rebounded by the end surface.
2. The filter element of claim 1, wherein the hollow filter segment is formed as: a cylindrical hollow bar made of a polymer material, wherein the polymer material comprises one or more of: acetate tow, polypropylene tow, and polylactic acid tow.
3. The filter element according to claim 1 or 2, wherein the hollow filter segment has an outer diameter of 5 to 10mm, and the ratio of the size of the axial through hole to the outer diameter of the hollow filter segment is 20 to 90%.
4. The filter element of claim 1, wherein the solid filter segment is formed as a cylindrical rod having at least one axial groove formed on an outer side of the cylindrical rod such that the at least one axial groove forms the at least one clearance channel with a wrap that wraps around the solid filter segment.
5. A filter element as claimed in claim 1, 2 or 4, characterised in that the radial depth of the interstitial channels is between 0.2 and 5mm and the area ratio between the total cross-sectional area of the at least one interstitial channel and the cross-sectional area of the solid filter segment is between 5 and 80%.
6. Filter element according to claim 1, 2 or 4, wherein the area ratio between the total cross-sectional area of the at least one clearance channel and the cross-sectional area of the axial through-hole of the hollow filter segment is 60-200%.
7. The filter element of claim 1, 2 or 4, wherein the wrapping layer has a thickness of 0.2 to 1mm.
8. A smoking article comprising a filter element according to any one of claims 1 to 7.
9. A method for manufacturing a filter element according to claim 1, applied to a tobacco product, comprising:
sequentially inputting a plurality of filter units onto a sheet wrapping material, wherein each filter unit of the plurality of filter units is formed by a hollow filter section, a filling section and a solid filter section which are sequentially arranged;
passing the sheet wrapping material and the plurality of filter units through a rejection assembly at a constant speed;
adjusting the rejecting assembly to enable the rejecting assembly to automatically and continuously knock down the filling sections in the plurality of filtering units so as to form intervals with the same size between the hollow filtering sections and the solid filtering sections in the plurality of filtering units;
and coating the hollow filter segments and the solid filter segments in the plurality of filter units by the sheet-shaped wrapping material, and forming the filter component after the cutting operation.
10. The method of claim 9, comprising:
and through the speed reduction and shaping operation, the hollow filtering section, the filling section and the solid filtering section of each filtering unit in the plurality of filtering units reach the placing state of head-to-tail joint.
11. An apparatus for manufacturing a filter element according to claim 1, applied to a tobacco product, comprising:
a feeding assembly for sequentially inputting a plurality of filter units onto a sheet wrapping material, wherein each of the plurality of filter units is formed by hollow filter sections, packed sections and solid filter sections which are sequentially arranged;
a conveying assembly for enabling the sheet-like wrapping material and the plurality of filter units to pass through the rejecting assembly at a constant speed;
a culling assembly for automatically and continuously knocking down the filled sections of the plurality of filter units to form a same size space between hollow and solid filter sections of the plurality of filter units;
and the forming assembly is used for enabling the sheet wrapping material to wrap the hollow filter sections and the solid filter sections in the plurality of filter units and forming the filter component after the cutting operation.
12. The apparatus of claim 11, wherein the apparatus further comprises:
the splayed deceleration crack is arranged above the conveying assembly and used for performing deceleration shaping operation on hollow filter sections, filling sections and solid filter sections in the plurality of filter units on the sheet wrapping material to enable the hollow filter sections, the filling sections and the solid filter sections to be in a head-to-tail fit arrangement state.
13. The apparatus of claim 12, wherein the contacting surfaces of the splaying deceleration slot and the hollow filter section, the filler section, and the solid filter section are formed of a flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910395068.7A CN111920088B (en) | 2019-05-13 | 2019-05-13 | Filter element for tobacco products, and method and device for producing a filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910395068.7A CN111920088B (en) | 2019-05-13 | 2019-05-13 | Filter element for tobacco products, and method and device for producing a filter element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111920088A CN111920088A (en) | 2020-11-13 |
| CN111920088B true CN111920088B (en) | 2022-11-11 |
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| CN201910395068.7A Active CN111920088B (en) | 2019-05-13 | 2019-05-13 | Filter element for tobacco products, and method and device for producing a filter element |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108669663A (en) * | 2018-05-31 | 2018-10-19 | 赵雪 | It is a kind of to heat the cigarette that do not burn |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4343319A (en) * | 1980-11-28 | 1982-08-10 | Brown & Williamson Tobacco Corporation | Cigarette filter |
| CN104287088B (en) * | 2013-07-19 | 2017-11-14 | 中烟机械技术中心有限责任公司 | Shaped device, forming method and the filter tip set composite of binary combined filter tip |
| CN204207063U (en) * | 2014-10-20 | 2015-03-18 | 常德芙蓉大亚化纤有限公司 | A kind of filter rod of ramuscule cigarette special construction |
| CN104824841B (en) * | 2015-03-21 | 2018-05-15 | 南通烟滤嘴有限责任公司 | The former of hollow filter stick |
| CN104921296A (en) * | 2015-06-25 | 2015-09-23 | 云南中烟工业有限责任公司 | Composite filter tip for heating type non-combustion cigarette |
| CN205624447U (en) * | 2016-03-28 | 2016-10-12 | 江苏大亚滤嘴材料有限公司 | Compound cigarette filter rod of ramuscule slot air traffic control binary |
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| CN108669663A (en) * | 2018-05-31 | 2018-10-19 | 赵雪 | It is a kind of to heat the cigarette that do not burn |
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