CN111329107A - Filter stick without wrapping paper and with continuous closed cavity, forming equipment and forming process - Google Patents
Filter stick without wrapping paper and with continuous closed cavity, forming equipment and forming process Download PDFInfo
- Publication number
- CN111329107A CN111329107A CN202010174952.0A CN202010174952A CN111329107A CN 111329107 A CN111329107 A CN 111329107A CN 202010174952 A CN202010174952 A CN 202010174952A CN 111329107 A CN111329107 A CN 111329107A
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- Prior art keywords
- cavity
- forming
- shaping
- core rod
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007493 shaping process Methods 0.000 claims abstract description 41
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000000779 smoke Substances 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000002775 capsule Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229920006221 acetate fiber Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000000796 flavoring agent Substances 0.000 claims description 2
- 235000019634 flavors Nutrition 0.000 claims description 2
- 239000011797 cavity material Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002860 competitive effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000035515 penetration Effects 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
Abstract
The invention discloses a filter stick without wrapping paper and with continuous closed cavities, wherein 2 to a plurality of closed cavities which are continuously distributed and independent from each other are arranged in the filter stick along the axis of the filter stick. The forming device comprises a forming cigarette gun and a forming core rod, wherein the forming cigarette gun is provided with a steam shaping section and a cooling and solidifying section, and the forming core rod reciprocates in the steam shaping section to form cavity sections and compact sections which are arranged at intervals. The cavity has the effects of cooling and reducing tar for smoke, and compared with the traditional cavity composite filter stick, the cavity composite filter stick does not need a composite process and wrapping paper, and has great competitive advantages in the aspects of cost, efficiency and the like.
Description
Technical Field
The invention relates to an internal structure of a filter stick and a forming technology thereof.
Background
The general filter stick is formed by wrapping a filter element with forming paper, and the filter element which is made of denser material and has higher hardness can be directly formed into a filter stick without wrapping the filter element with the forming paper; some filter cartridges have axial through holes therein and some filter cartridges have individual closed holes therein.
The invention with the patent application number of 2017102833121 discloses a composite filter stick with a through type conical cavity structure, which comprises a stick body, wherein the stick body is cylindrical, a cavity is arranged in the stick body, the cavity is horn-shaped, namely, along the central axis direction of the stick body, two ends of the cavity are open, the circumferential size of the opening at one end is always larger than that of the opening at the other end, and the stick bodies are detachably connected. The filter stick adopts the axial through hole, and the filtering effect of the through hole on smoke is weakened.
A transparent cavity type quinary composite filter stick with two kinds of functional particles added into a cavity of 2018200177325 relates to a filter stick for manufacturing a cigarette filter, wherein a cavity section (4) interval is arranged between functional filter stick sections (3), functional particles (5) are arranged in the cavity section (4), and an outer wrapping layer (1) wraps an inner wrapping layer (2) and connects the filter stick sections together. Although the core part of the invention is not provided with the through hole, the core part adopts the composite filter stick structure with the interval between the solid core and the hollow core, so that more manufacturing procedures are needed, and the production cost is higher.
The invention with the patent application number of 2018104063116 discloses a forming device for a paperless coaxial core filter stick, which is provided with two groups of parallel tow conveying mechanisms, a combined opening mechanism, an inner layer paperless wrapped filter stick curing and shaping mechanism, an outer layer paperless wrapped filter stick curing and shaping and composite forming mechanism and a leading-out mechanism. The inner-layer paperless wrapped filter stick curing and shaping mechanism heats the inner-layer tows by steam to prepare a paperless wrapped inner-core filter stick; then the outer layer is heated and shaped by steam. The invention introduces the forming technology of the filter stick without the paper bag, and can be used for reference.
Disclosure of Invention
The purpose of the invention is as follows:
the outer-wrapping-free paper filter stick with the continuous closed cavity is provided, the inner cavity is favorable for cooling and reducing tar, the capsule can be directly embedded, and good filtering capacity can be maintained without penetration.
The technical scheme is as follows:
the filter stick adopts acetate fiber and thermosetting adhesive as raw materials (the adhesive is added into the middle tow in a liquid state before the tow enters a forming cigarette gun after being opened, and is firstly plasticized and deformed and then heated, cured and shaped when being heated), and a structure of 2 to a plurality of independent closed cavities which are continuously arranged along the axial lead is arranged in the filter stick along the line.
The closed cavities are in an ellipsoidal shape, the structure size of each cavity of the filter stick can be adjusted and controlled, the length L of each cavity in the axial direction is larger than the diameter in the radial direction, and the diameter D in the radial direction is about 1/3-2/3 of the diameter of the filter stick. The diameter D ranges from 1 mm to 5.5mm, and the length L ranges from 5mm to 20 mm.
The axial distance between the adjacent cavities is about the diameter of the filter stick, so that the smoke has better filtering capacity and lower suction resistance when passing through.
Preferably, one or several capsules, in which a liquid or solid flavour substance or a filter or adsorbent material is placed, are placed in each closed cavity.
The placing method can be that the inside of the forming core rod is provided with a hollow flow channel, particles are added from the head part and released into the cavity from the opening of the tail part, and compressed gas can be configured at the inlet of the flow channel to be used as power to blow in the capsule and blow out the capsule.
The molding equipment and the process thereof of the invention are as follows:
the forming equipment used for feeding the filter stick product comprises a forming core rod, a driving mechanism for controlling the forming core rod to reciprocate and a forming smoke gun. The inside of the forming cigarette gun is provided with a filter stick forming cavity, when the forming cigarette gun is used, the forming core rod enters the forming cavity from a tow inlet of the cigarette gun, and the part entering the forming cavity can move back and forth in the forming cavity in a reciprocating mode (tows continuously enter, the core rod can move forward and insert into the tows, and can also move back and not insert into the tows but keep below the tows).
The shaping cigarette gun is sequentially provided with a steam shaping section and a cooling and solidifying section from the entering position of the tows.
The length of the part of the forming core rod in the forming cavity is not more than that of the steam shaping section, and the diameter from the head to the tail of the forming core rod is gradually reduced when seen from the entering position of the filament bundle.
The steam shaping section is provided with a steam heating pipeline, can heat the shell of the shaping cigarette gun and then transfers heat to the tows in the inner shaping cavity of the shaping cigarette gun.
When a forming core rod is inserted into the filament bundle, the filament bundle is heated, the filament bundle is restrained by the core rod and a cigarette gun together, an adhesive therein is melted at high temperature for shaping the filament bundle to form a hollow cavity with a hollow structure and shaping, and after the forming core rod is pulled out, the shape of the core rod is kept in the filament bundle to form a cavity section.
The cooling and solidifying section is provided with a cold air inlet pipeline which can cool the outer shell of the cigarette gun and transfer cold energy to the tows in the forming cavity inside the cigarette gun.
When the tows continue to move forward through the steam shaping section, the forming core rod is pulled out at the moment, the tows containing the cavity move forward to the cooling and solidifying section, and the cavity in the tows is further solidified and is not easy to deform.
When the molding core rod exits (only exits from the steam shaping section), the tows entering subsequently have basically no gaps and do not form cavities, and the tows without the gaps form a compact section when entering the steam shaping section and the cooling and solidifying section in sequence.
The subsequent filament bundles can form a filter core or a filter stick without paper package, wherein the filter core or the filter stick is provided with a plurality of cavity sections and dense sections which are alternated, under the common constraint of the forming core rod and the forming cavity which repeatedly advance and retreat.
Be provided with the cold air jet orifice of one (or a plurality of circumference equipartitions) UNICOM shaping chamber on the shell of preferred cooling solidification section, let compressed cold air can get into the shaping chamber, produce great radial pressure of blowing to the silk bundle through this hole department, make the silk bundle of this department in the refrigerated while, further shrink and form the core structure of complete compactness (offset the remaining space after the shaping plug is extracted), the silk bundle can contract completely and cool off and condense together, form the closely knit section of complete closure.
Preferably, the cold air injection holes and the advancing direction of the tows form an acute angle smaller than 90 degrees (the tows advance at a certain speed, and the resultant direction of the cold air injected by the acute angle is closer to being vertical to the tows, so that the combination of the compact sections is more symmetrical, and the shapes of the cavity sections and the compact sections formed in the compact sections are more perfect.
The reciprocating driving mechanism can adopt a crank-slider mechanism to convert the rotary motion into the reciprocating motion. Preferably, the cutter head of the forming machine rotates for one circle, and the reciprocating mechanism reciprocates for 4 times, so that 4 cavities which are uniformly distributed are formed in the filter stick. The diameter of the cavity can be adjusted to be 1-5.5 mm by adjusting the diameter of the core rod; the axial length of the cavity can be controlled to be 5-20mm, and the length of the gap (compact section) between the cavities is controlled to be 3-10mm by controlling the stroke of the forming core rod for advancing and retreating and the speed of the filament bundle for traveling.
Has the advantages that:
the cavity structure of the filter stick has the effects of cooling and reducing tar for smoke, and has wide application prospect on the traditional cigarettes and novel non-burning heating cigarettes. Meanwhile, the cavity is used as a carrier, and particles and capsules can be added into the cavity, so that more functionality is given to the cavity. Meanwhile, compared with the traditional cavity composite filter stick, the composite filter stick does not need a composite process, does not need high-quantitative forming paper and an adhesive, and has great advantages in the aspects of cost and efficiency. The production cost of the cavity composite filter stick is reduced, and the loss of raw materials during molding is reduced. The size of the cavity is adjustable and controllable, and the filter stick with various specifications can be manufactured.
Drawings
FIG. 1 is a cross-sectional view of a product of the present invention;
FIG. 2 is a schematic cross-sectional view of an apparatus of the present invention;
FIG. 3 is a schematic structural view of a forming mandrel of the present invention;
fig. 4 is a schematic view of the product forming process of the present invention.
In the figure, 1-cavity; 2-a dense section; 3 cavity radial diameter; 4-axial length of cavity.
Detailed Description
As shown in figure 1, the filter stick without the wrapping paper and provided with the continuous closed cavities adopts acetate fibers and thermosetting adhesive as main raw materials, and has a structure with 4 closed cavities which are continuously arranged along an axial lead and are independent from each other in the filter stick;
the length of the cavity in the axial direction is larger than that in the radial direction, and the size of the cavity in the radial direction is about 1/3-2/3 of the diameter of the filter stick.
The diameter D range of each cavity is 3-5 mm, and the length L range is 10-15 mm.
The equipment for forming the filter stick shown in figure 2 comprises a forming core rod, a driving mechanism for controlling the reciprocating advance and retreat of the forming core rod and a forming smoke gun; the inside of the forming cigarette gun is provided with a filter stick forming cavity, when in use, the forming core rod enters the forming cavity from the inlet of the filament bundle, and the part entering the forming cavity can move back and forth in the forming cavity; the shaping cigarette gun is sequentially provided with a steam shaping section and a cooling and solidifying section from the entering position of the tows; the length of the part of the forming core rod in the forming cavity is not more than the length of the steam shaping section.
The steam shaping section is provided with a steam heating pipeline which can heat the shell of the shaping cigarette gun and then transfer heat to the tows in the inner shaping cavity of the shaping cigarette gun; the cooling solidification section is provided with a cold air inlet pipeline, and the cold air can cool the outer shell of the cigarette gun and transfer cold energy to the tows in the forming cavity in the cigarette gun.
The forming mandrel shown in fig. 3 has a gradually decreasing diameter from the head to the tail.
Claims (8)
1. A filter stick without wrapping paper with a continuous closed cavity adopts acetate fiber and thermosetting adhesive as main raw materials, and is characterized in that: the filter stick is internally provided with a structure of 2 to a plurality of closed cavities which are continuously arranged along the axial lead and are independent from each other;
the length of the cavity in the axial direction is larger than that in the radial direction, and the size of the cavity in the radial direction is about 1/3-2/3 of the diameter of the filter stick.
2. A wrapper-free filter rod with a continuous closed cavity according to claim 1, wherein: the diameter D range of each cavity is 1-5.5 mm, and the length L range is 5-20 mm.
3. A wrapper-free filter rod with a continuous closed cavity according to claim 1, wherein: one or more capsules are placed in each closed cavity, and liquid or solid flavor substances or filtering substances or adsorbing materials are contained in the capsules.
4. A forming device for producing the filter stick of claim 1, which is characterized in that: the device is provided with a forming core rod, a driving mechanism for controlling the forming core rod to reciprocate and advance and retreat, and a forming smoke gun; the inside of the forming cigarette gun is provided with a filter stick forming cavity, when in use, the forming core rod enters the forming cavity from the inlet of the filament bundle, and the part entering the forming cavity can move back and forth in the forming cavity;
the shaping cigarette gun is sequentially provided with a steam shaping section and a cooling and solidifying section from the entering position of the tows;
the length of the part of the forming core rod in the forming cavity is not more than that of the steam shaping section;
the steam shaping section is provided with a steam heating pipeline which can heat the shell of the shaping cigarette gun and then transfer heat to the tows in the inner shaping cavity of the shaping cigarette gun; the cooling solidification section is provided with a cold air inlet pipeline, and the cold air can cool the outer shell of the cigarette gun and transfer cold energy to the tows in the forming cavity in the cigarette gun.
5. A filter rod forming apparatus according to claim 4, wherein: the diameter of the forming core rod from the head to the tail is gradually reduced from the entry position of the filament bundle.
6. A molding process according to claim 4, characterized in that: when a shaping core rod is inserted into the filament bundle shaping section through steam, the filament bundle is heated, the filament bundle is restrained by the core rod and a cigarette gun together, an adhesive therein is melted at high temperature for shaping the filament bundle to form a hollow cavity with a hollow structure, and after the shaping core rod is pulled out, the shape of the core rod is kept in the filament bundle section to form a cavity section;
when the filament bundle continues to move forwards through the steam shaping section, the shaping core rod is pulled out, the filament bundle containing the shaped cavity moves forwards to the cooling and solidifying section, and the cavity in the filament bundle is further cooled, solidified and kept in shape.
7. A process for forming a filter rod according to claim 6, wherein: when the forming core rod is withdrawn, the filament bundle entering subsequently has no gaps, and the filament bundle enters the steam shaping section and the cooling and solidifying section successively to form the compact section.
8. A process for forming a filter rod according to claim 6 or 7, wherein: and the subsequent tows are constrained by the forming core rod and the forming cavity which move forward and backward repeatedly to form the filter element or the filter rod without the paper bag, wherein the filter element is provided with a plurality of cavity sections and dense sections which are arranged alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010174952.0A CN111329107A (en) | 2020-03-13 | 2020-03-13 | Filter stick without wrapping paper and with continuous closed cavity, forming equipment and forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010174952.0A CN111329107A (en) | 2020-03-13 | 2020-03-13 | Filter stick without wrapping paper and with continuous closed cavity, forming equipment and forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111329107A true CN111329107A (en) | 2020-06-26 |
Family
ID=71174479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010174952.0A Pending CN111329107A (en) | 2020-03-13 | 2020-03-13 | Filter stick without wrapping paper and with continuous closed cavity, forming equipment and forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111329107A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674386A (en) * | 2020-12-23 | 2021-04-20 | 武汉市昱宸峰科技有限公司 | Surface treatment method and device for cigarette filter stick |
| CN113545516A (en) * | 2021-08-20 | 2021-10-26 | 江苏大亚滤嘴材料有限公司 | Forming method of reducing hollow tube filter stick |
| CN113712253A (en) * | 2021-08-31 | 2021-11-30 | 南通烟滤嘴有限责任公司 | Filter rod with suspended inner core and preparation device and method thereof |
| CN114587015A (en) * | 2022-04-08 | 2022-06-07 | 河南中烟工业有限责任公司 | Filter stick containing flavor substances and manufacturing method thereof |
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| CN203618761U (en) * | 2013-10-18 | 2014-06-04 | 常德芙蓉大亚化纤有限公司 | Cigarette filter tip stick with internal cavities |
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| CN207544322U (en) * | 2017-12-05 | 2018-06-29 | 武汉黄鹤楼新材料科技开发有限公司 | A kind of former of the hollow filter stick of interval |
| CN108477673A (en) * | 2018-04-30 | 2018-09-04 | 南通烟滤嘴有限责任公司 | Former and its operation process without paper bag coaxial core filter stick |
| CN207836755U (en) * | 2018-01-05 | 2018-09-11 | 牡丹江卷烟材料厂有限责任公司 | Five yuan of composite filters of transparent cavity formula of two kinds of functional particulates are added in a kind of cavity |
| CN212260460U (en) * | 2020-03-13 | 2021-01-01 | 南通烟滤嘴有限责任公司 | Filter stick without wrapping paper and with continuous closed cavity |
-
2020
- 2020-03-13 CN CN202010174952.0A patent/CN111329107A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203618761U (en) * | 2013-10-18 | 2014-06-04 | 常德芙蓉大亚化纤有限公司 | Cigarette filter tip stick with internal cavities |
| CN106942788A (en) * | 2017-04-26 | 2017-07-14 | 云南中烟工业有限责任公司 | A kind of composite filter containing through conical cavity structure and preparation method thereof |
| CN207544322U (en) * | 2017-12-05 | 2018-06-29 | 武汉黄鹤楼新材料科技开发有限公司 | A kind of former of the hollow filter stick of interval |
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| CN108477673A (en) * | 2018-04-30 | 2018-09-04 | 南通烟滤嘴有限责任公司 | Former and its operation process without paper bag coaxial core filter stick |
| CN212260460U (en) * | 2020-03-13 | 2021-01-01 | 南通烟滤嘴有限责任公司 | Filter stick without wrapping paper and with continuous closed cavity |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674386A (en) * | 2020-12-23 | 2021-04-20 | 武汉市昱宸峰科技有限公司 | Surface treatment method and device for cigarette filter stick |
| CN113545516A (en) * | 2021-08-20 | 2021-10-26 | 江苏大亚滤嘴材料有限公司 | Forming method of reducing hollow tube filter stick |
| CN113712253A (en) * | 2021-08-31 | 2021-11-30 | 南通烟滤嘴有限责任公司 | Filter rod with suspended inner core and preparation device and method thereof |
| CN114587015A (en) * | 2022-04-08 | 2022-06-07 | 河南中烟工业有限责任公司 | Filter stick containing flavor substances and manufacturing method thereof |
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