WO2022222959A1

WO2022222959A1 - Processing device and manufacturing method for cooling element, and cigarette processing system

Info

Publication number: WO2022222959A1
Application number: PCT/CN2022/087918
Authority: WO
Inventors: 姚建文; 唐鹄; 吴绍峰
Original assignee: 湖南吉首市民族烟材有限公司
Priority date: 2021-04-21
Filing date: 2022-04-20
Publication date: 2022-10-27
Also published as: CN115211611A; EP4256992A1

Abstract

A processing device and manufacturing method for a cooling element, and a cigarette processing system. The processing device for a cooling element comprises a cooling material pretreatment unit (1) and a composite molding unit (2); the cooling material pretreatment unit (1) is used for pretreating a cooling material; the composite molding unit (2) is used for compositing tows into a layered structure and performing molding. The cigarette processing system comprises the processing device for a cooling element. The manufacturing method for a cooling element comprises: respectively pre-treating at least one group of cellulose acetate tows and at least one group of polylactic acid fiber tows, then performing combination and extrusion to form a layered cooling material comprising at least one cellulose acetate layer and at least one polylactic acid fiber layer, and then rolling into a columnar shape to obtain a cooling element. By using the processing device and manufacturing method for a cooling element, a manufactured cooling element is stable in structure and good in cooling effect.

Description

Processing device, preparation method and cigarette processing system of cooling element

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application with the application number 202110430185.X and the title of "Processing Device, Preparation Method and Cigarette Processing System of Cooling Element" filed with the State Intellectual Property Office of China on April 21, 2021, which The entire contents of this application are incorporated by reference.

technical field

The present application relates to the field of heat-not-burn cigarettes, and in particular, to a processing device, a preparation method and a cigarette processing system of a cooling element.

Background technique

Heat-not-burn cigarettes are one of the emerging tobacco products, which generally consist of at least an aerosol-generating element and a filter element. If the smoke generated by the heating of the aerosol generating element only passes through the filter element, the temperature drop will be limited. After reaching the consumer's mouth, there will be a burning experience, which will lead to a decrease in the consumer's smoking experience. Therefore, the general heating Non-burning cigarettes incorporate cooling elements into the structure of the cigarette.

In the related art, the shape, material, processing method and the setting position of the cooling element in the cigarette are different from each other. For example, a commonly used cooling element is generally formed by pressing a mold. Although this method has a simple processing process, the simple structure of the cooling element results in a poor cooling effect, and consumers have a burning sensation when smoking, and the smoking experience is poor.

SUMMARY OF THE INVENTION

The present application provides a processing device, a manufacturing method and a cigarette processing system for a cooling element, so as to solve at least the above problems.

Some embodiments of the present application provide a processing device for a cooling element, which achieves at least the above-mentioned objects.

In some embodiments, the processing device may include a cooling material pretreatment unit and a composite molding unit, the cooling material pretreatment unit may be used to pretreat the tow-shaped cooling material, and the composite molding unit may be used to The pretreated tow-like cooling material is composited into a layered structure and formed;

The composite forming unit may include a splicing roller, a squeezing roller and a forming bong, which are arranged in sequence. It is used for pressurizing and compounding the layered cooling material, and the forming bong can be used for molding the pressurized and compounded layered cooling material to obtain the cooling element; the air blower can be used for forming the cooling element. The tow-shaped cooling material is blown and loosened, the pre-stretching roller can be used to stretch the tow-shaped cooling material after blowing, and the screw roller can be used to stretch the stretched tow-shaped cooling material. The cooling material is opened, and the plasticizer spray addition box can be used to add plasticizer to the tow-shaped cooling material after opening, and the conveying roller can be used to add plasticizer to the plasticizer. The tow-shaped cooling material is fed into the composite forming unit.

Optionally, the tow-shaped cooling material may be a polylactic acid fiber tow and an acetate fiber tow.

Optionally, the pre-tensioning rollers, the threaded rollers, the plasticizer spray adding box and the conveying rollers within each group may be arranged in pairs.

Optionally, the conveying rollers may be provided with a plurality of mutually matched metal rollers in parallel.

Optionally, each group of the threaded rollers may include a first threaded roller and a second threaded roller arranged in sequence, and the splicing rollers and the squeezing rollers may be independently arranged in parallel in pairs.

Optionally, a limited width component may be arranged between the cooling material preprocessing unit and the splicing roll.

Optionally, the width limiting assembly may be a set of slidable stainless steel metal rollers for limiting the width of the tow.

Optionally, a high-pressure wire catcher may be provided between the squeezing roller and the forming bong, and the high-pressure wire catcher may be used to capture the layered cooling material and feed it into the forming bong.

Other embodiments of the present application also provide a method for preparing a cooling element, which may include:

At least one group of acetate fiber tows and at least one group of polylactic acid fiber tows are respectively pretreated, and then spliced and extruded to form a layered layer comprising at least one acetate fiber layer and at least one polylactic acid fiber layer. The cooling material is then rolled into a column to obtain the cooling element.

Optionally, the running speed of the tow may be 60m/min to 80m/min; the ratio of the running speed of the forming bong to the linear speed of the squeezing roller may be 1:1 to 1:1.1.

Optionally, the pressure of the squeeze roller may be 0.05MPa to 0.35MPa;

Optionally, the steam pressure of the forming bong can be 0.3MPa to 0.6MPa;

Optionally, the cooling material preprocessing unit may include a conveying roller, and the ratio of the linear speed of the squeezing roller to the conveying roller may be 1:1.1 to 1:1.3.

Still other embodiments of the present application also provide a cigarette processing system, which may include the processing device for the cooling element.

Compared with the related art, the beneficial effects of the present application may at least include:

The cooling element processing device and cigarette processing system provided by the present application, the tow-shaped cooling material processed by the cooling material pretreatment unit is spliced and extruded together by the splicing roller and the extrusion roller to form a basic layered structure, and then It is formed in a forming bong to obtain a cooling element with a layered structure for cigarettes; the device has a simple structure, and the obtained cooling element with a layered structure has a stable structure and a good cooling effect; thus greatly reducing consumers' smoking cigarettes There is a better user experience.

The preparation method of the cooling element provided by the present application comprises pre-processing at least one group of acetate fiber tows and at least one group of polylactic acid fiber tows respectively, and then compounding them under the action of splicing and extrusion, and then rolling them into a column. The cooling element is obtained; the cooling element has a stable structure, does not need an additional supporting element, and has a good cooling effect.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following drawings will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore do not It should be considered as limiting the scope of this application.

1 is a schematic cross-sectional view of a cooling element processed in an embodiment of the present application;

2 is a schematic diagram of the processing device of the cooling element provided in Example 1;

3 is a schematic diagram of the processing device of the cooling element provided in Example 2;

4 is a schematic diagram of the processing device of the cooling element provided in Example 3;

Figure 5 is a schematic diagram of the unclosed inner layer and the state of the unqualified cooling element;

Figure 6 is a schematic diagram of an unqualified cooling element outer layer not closed and the state;

FIG. 7 is a schematic diagram of the state of uneven distribution of material density of unacceptable cooling elements.

Reference number:

1- Cooling material pretreatment unit;

10-air blower; 11-pre-stretching roller; 12-thread roller; 13-plasticizer spray adding box; 14-conveying roller;

2-Composite molding unit;

20-splicing roller; 21-extrusion roller; 22-forming bong; 23-width limiting component; 24-high pressure wire catcher.

Detailed ways

Terms as used herein:

"Prepared by" is synonymous with "comprising". As used herein, the terms "comprising," "including," "having," "containing," or any other variation thereof, are intended to cover non-exclusive inclusion. For example, a composition, step, method, article or device comprising the listed elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such composition, step, method, article or device elements.

The conjunction "consisting of" excludes any unspecified element, step or component. If used in a claim, this phrase would make the claim closed to the exclusion of materials other than those described, but with the exception of conventional impurities associated therewith. When the phrase "consisting of" appears in a clause in the body of a claim rather than immediately following the subject matter, it is limited only to the elements described in that clause; other elements are not excluded from the description as a whole beyond the claims.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or a range bounded by a series of upper preferred values and lower preferred values, this should be understood as specifically disclosing any upper range limit or preferred value and any lower range limit or all ranges formed by any pairing of preferred values, whether or not the ranges are individually disclosed. For example, when a range "1-5" is disclosed, the described range should be construed to include the ranges "1-4", "1-3", "1-2", "1-2 and 4-5" , "1 to 3 and 5", etc. When numerical ranges are described herein, unless stated otherwise, the ranges are intended to include the endpoints and all integers and fractions within the range.

In these examples, unless otherwise indicated, the stated parts and percentages are by mass.

"Mass part" refers to a basic measurement unit that represents the mass ratio relationship of multiple components, and 1 part can represent any unit mass, such as 1 g, 2.689 g, and the like. If we say that the mass part of the A component is a part, and the mass part of the B component is b part, it means the ratio of the mass of the A component to the mass of the B component a:b. Or, the mass of the A component is aK, and the mass of the B component is bK (K is an arbitrary number, representing a multiplier factor). Unmistakably, unlike parts by mass, the sum of parts by mass of all components is not limited to 100 parts by mass.

"And/or" is used to indicate that one or both of the stated circumstances may occur, eg, A and/or B includes (A and B) and (A or B).

A processing device for a cooling element, comprising a cooling material pretreatment unit and a composite molding unit, the cooling material pretreatment unit is used for preprocessing a tow-shaped cooling material, and the composite molding unit is used for pretreatment. The tow-like cooling material is compounded into a layered structure and formed;

The composite forming unit includes a splicing roller, a squeezing roller and a forming bong, which are arranged in sequence. The layered cooling material is pressurized and compounded, and the forming bong is used for molding the pressurized and compounded layered cooling material to obtain the cooling element.

In an optional embodiment, the cooling material pretreatment unit includes at least two sets of air blowers, pre-tensioning rollers, screw rollers, plasticizer spray adding boxes and conveying rollers that are arranged in sequence; the air blowing The device is used to blow the tow-shaped cooling material, the pre-stretching roller is used to stretch the tow-shaped cooling material after blowing, and the screw roller is used to stretch the stretched wire The bundle-shaped cooling material is opened, and the plasticizer spraying adding box is used to add plasticizer to the tow-shaped cooling material after opening, and the conveying roller is used to add the plasticizer. The tow-shaped cooling material is fed into the composite forming unit.

In an optional embodiment, each group of the screw rolls includes a first screw roll and a second screw roll arranged in sequence.

In an optional embodiment, a width limiting component is arranged between the cooling material preprocessing unit and the splicing roller.

In an optional embodiment, the splicing rolls and the squeezing rolls are independently arranged in parallel in pairs.

In an optional embodiment, a high-pressure wire catcher is provided between the squeezing roller and the forming smoke gun, and the high-pressure wire catcher is used to catch the layered cooling material and feed it into the forming smoke gun.

The present application also provides a cigarette processing system, including the processing device of the cooling element.

The present application also provides a preparation method of a cooling element, which is prepared by using the processing device of the cooling element, and the preparation method includes:

At least one group of acetate fiber tows and at least one group of polylactic acid fiber tows are respectively pretreated by the cooling material pretreatment unit, and then enter the composite molding unit;

Then splicing through the splicing roller, and extruding and compounding through the squeezing roller to form a layered cooling material including at least one acetate fiber layer and at least one polylactic acid fiber layer, and then in the forming bong Forming yields the cooling element.

In an optional embodiment, the running speed of the tow is 60m/min to 80m/min;

In an optional embodiment, the pressure of the squeeze roller is 0.05MPa to 0.35MPa;

In an optional embodiment, the steam pressure of the forming bong is 0.3 MPa to 0.6 MPa;

In an optional embodiment, the ratio of the running speed of the forming bong to the linear speed of the squeezing roller is 1:1 to 1:1.1.

Optionally, the running speed of the tow can be any value between 60m/min, 70m/min, 80m/min and 60-80m/min; the pressure of the squeezing roller can be 0.05MPa, 0.10 MPa, 0.15MPa, 0.20MPa, 0.25MPa, 0.30MPa, 0.35MPa and any value between 0.05MPa and 0.35MPa; the steam pressure of the forming bong can be 0.3MPa, 0.4MPa, 0.5MPa, 0.6MPa and any value between 0.3MPa and 0.6MPa; the ratio of the running speed of the forming bong to the linear speed of the squeeze roll can be 1:1, 1:1.05, 1:1 and 1:1 to 1: Any value between 1.1.

In an optional embodiment, the cooling material preprocessing unit includes a conveying roller, and the ratio of the linear speed of the squeezing roller to the conveying roller is 1:1.1 to 1:1.3.

Optionally, the ratio of the linear speed of the squeezing roller to the conveying roller may be any value between 1:1.1, 1:1.2, 1:1.3, and 1:1.1 to 1:1.3.

The embodiments of the present application will be described in detail below with reference to specific examples, but those skilled in the art will understand that the following examples are only used to illustrate the present application and should not be regarded as limiting the scope of the present application. If the specific conditions are not indicated in the examples, it is carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments used without the manufacturer's indication are conventional products that can be purchased from the market.

First, the target processing object of the processing device provided by the present application is described: the cooling element is a hollow cylindrical shape as a whole, and the column adopts a double-layer or multi-layer structure. Taking the double-layer structure as an example, one is an acetate fiber layer and the other is a polylactic acid layer (as shown in Figure 1).

Example 1

As shown in FIG. 2 , the present embodiment provides a processing device for a cooling element, which is arranged in the order of the processing technology, and sequentially includes: a cooling material preprocessing unit 1 and a composite molding unit 2 .

The cooling material pretreatment unit 1 is used for preprocessing the polylactic acid fiber tow and the acetate fiber tow respectively, and the composite molding unit 2 is used for composite molding of the pretreated polylactic acid fiber tow and the acetate fiber tow to obtain Cooling element of layered cooling material with layers of acetate fibers and polylactic acid fibers.

In a preferred embodiment, the cooling material pretreatment unit 1 includes a plurality of sets of air blowers 10 , pre-stretching rollers 11 , screw rollers 12 , plasticizer spray adding boxes 13 and conveying rollers 14 , which are arranged in sequence. The number of groups of each part in the cooling material preprocessing unit 1 is related to the number of layers of cooling elements. Within each group, the pre-tensioning roller 11, the screw roller 12, the plasticizer spray adding box 13 and the conveying roller 14 are each provided in pairs. The composite forming unit 2 includes a splicing roll 20 , a squeezing roll 21 and a forming bong 22 which are arranged in sequence.

The present embodiment also provides a method for preparing a cooling element, which includes the following steps: the acetate fiber tow and the polylactic acid tow pass through the corresponding air blower 10 respectively at a speed of 60 m/min and enter the pre-stretching roller 11 for straightening, and It is guided into the screw roller 12 for opening, and after the opening is completed, it enters the plasticizer spray adding box 13 to spray plasticizer (such as glycerin, water-based glue, etc.), and then passes through the conveying roller 14. Laminated composite is completed under the continuous action of the filament to form a layered cooling material with an acetate fiber layer and a polylactic acid fiber layer, and finally enters the forming bong 22, and is formed under the action of steam through the tow wrapping core mold; The pressure is 0.05MPa, the steam pressure of the forming bong 22 is 0.3MPa, the ratio of the running speed of the forming bong 22 to the linear speed of the squeezing roller 21 is 1:1, and the ratio between the linear speed of the squeezing roller 21 and the conveying roller 14 is 1:1. The ratio is 1:1.1.

Example 2

As shown in FIG. 3 , the present embodiment provides a processing device for a cooling element, which is arranged in the order of the processing technology, and sequentially includes: a cooling material preprocessing unit 1 and a composite molding unit 2 .

In a preferred embodiment, the cooling material pretreatment unit 1 includes a plurality of sets of air blowers 10 , pre-stretching rollers 11 , screw rollers 12 , plasticizer spray adding boxes 13 and conveying rollers 14 , which are arranged in sequence. The number of groups of each part in the cooling material preprocessing unit 1 is related to the number of layers of cooling elements; within each group, the pre-tensioning rollers 11, the screw rollers 12, the plasticizer spray adding box 13 and the conveying rollers 14 are respectively arranged in pairs . The conveying roller 14 may be provided with a plurality of metal rollers which are matched with each other in parallel as required. In order to ensure the effect of opening, in a preferred embodiment, there are two pairs of screw rollers 12 arranged in sequence.

The composite molding unit 2 includes a width-limiting component 23 , a splicing roller 20 , a squeezing roller 21 and a molding bong 22 , which are arranged in sequence. The width limiting assembly 23 is a set of slidable stainless steel metal rollers that limit the width of the tow.

The present embodiment also provides a method for preparing a cooling element, which includes the following steps: the acetate tow and the polylactic acid tow pass through the corresponding air blower 10 respectively at a speed of 80 m/min and enter the pre-stretching roller 11 for straightening, and Guided into the threaded roller 12 for opening, after the opening is completed, it enters the plasticizer spray adding box 13 to spray plasticizer, and then passes through the conveying roller 14 under the continuous action of the splicing roller 20 and the squeezing roller 21. The layered cooling material with the acetate fiber layer and the polylactic acid fiber layer finally enters the forming bong 22, and is formed under the action of steam through the tow wrapping core mold; the pressure of the extrusion roller 21 is 0.35MPa, and the forming bong 22 The steam pressure is 0.6MPa, the ratio of the running speed of the forming bong 22 to the linear speed of the squeezing roller 21 is 1:1.1, and the ratio of the linear speed of the squeezing roller 21 to the conveying roller 14 is 1:1.3.

Example 3

As shown in FIG. 4 , the present embodiment provides a processing device for a cooling element, which is arranged in the order of the processing technology, and sequentially includes: a cooling material preprocessing unit 1 and a composite molding unit 2 .

In order to make the composite tow material enter the forming bong 22 better and more stably and ensure the smooth operation of the whole device, a high-pressure wire catcher 24 is arranged between the extrusion roller 21 and the forming bong 22 .

This embodiment also provides a method for preparing a cooling element, which includes the following steps: the acetate fiber tow and the polylactic acid tow pass through the corresponding air blower 10 respectively at a speed of 70 m/min and enter the pre-stretching roller 11 for straightening, and Guided into the threaded roller 12 for opening, after the opening is completed, it enters the plasticizer spray adding box 13 to spray plasticizer, and then passes through the conveying roller 14 under the continuous action of the splicing roller 20 and the squeezing roller 21. The layered cooling material with the acetate fiber layer and the polylactic acid fiber layer finally enters the forming bong 22, and is formed under the action of steam through the tow wrapping core mold; the pressure of the extrusion roller 21 is 0.15MPa, and the forming bong 22 The steam pressure is 0.4MPa, the ratio of the running speed of the forming bong 22 to the linear speed of the squeezing roller 21 is 1:1.05, and the ratio of the linear speed of the squeezing roller 21 and the conveying roller 14 is 1:1.2.

It should be noted that post-processing steps such as slitting are also included after forming.

On the basis of the above-mentioned processing device for cooling elements, the present application also provides a system for processing heat-not-burn cigarettes. Processing equipment, cigarette assembly equipment, etc.) are integrated to obtain a complete set of automated processing systems to improve processing efficiency and reduce production costs.

Comparative Example 1

Using pure cellulose acetate (CA) as the cooling material, a cooling element with the same thickness and aperture as in Example 1 was fabricated.

Comparative Example 2

Using pure polylactic acid fiber (PLA) as the cooling material, a cooling element with the same thickness and aperture as Example 1 was fabricated.

The cooling elements obtained in Example 1 and Comparative Examples 1-2 were processed into heat-not-burn cigarettes, and then the lip temperature test and collapse deformation test were carried out.

The lip temperature test is performed according to the cigarette smoking model specified in the national standard GB/T19609-2004 to simulate smoking, and the Canadian deep smoking mode (HCI) is used. Duration 2s. Use a thermocouple temperature detector to detect the smoke temperature value when smoking a cigarette sample for six puffs, in which the temperature at 0mm from the center of the cigarette holder stick to the mouth end.

The lip temperature test results are shown in Table 1:

Table 1 Lip temperature test results

Measure the circumference change value during the suction process, "—" means the circumference shrinks, and the results are shown in Table 2:

Table 2 Collapse deformation test results

As can be seen from Table 1 and Table 2 above, the heat-not-burn cigarettes prepared by the cooling element provided in Example 1 of the present application not only obtained a good cooling effect (low lip temperature), but also obtained good stability ( deformation is small). This is because the endothermic properties of PLA are stronger than that of CA, the glass transition temperature of CA is 185°C and the melting point is 310°C; the glass transition temperature of PLA is 60°C and the melting point is 160°C; but the thermal deformation of PLA is greater than that of CA. Therefore, no matter which material is used alone, it is difficult to achieve a balance between cooling effect and stability.

Comparative Example 3

Compared with Embodiment 2, the difference is that the width limiting component 23 is not used, and other equipment and processes are the same.

Comparative Example 4

Compared with Example 2, the difference is that the squeeze roller 21 is not used, and other equipment and processes are the same.

According to the statistics of the yields of Example 2, Comparative Example 3, and Comparative Example 4, the average yield of Example 2 is 80%, while that of Comparative Example 3 is only 35%, and that of Comparative Example 4 is only 30%. . The process stability of Comparative Examples 3 and 4 is poor.

The specific reason is: the width-limiting component 23 is not used, since the tow will swing from side to side and the spreader will fluctuate during the production process, the infinite-width component 23 will cause the finished product to fail to obtain a stable layered structure. Without the squeezing roller 21, the two tows do not fit together. After entering the bong, the changes of the two tows are inconsistent under the extrusion action of the forming bong 22, and it is difficult to obtain a stable layered structure.

The cross-sectional views of the unqualified products in Comparative Examples 3 and 4 are shown in FIGS. 5 , 6 and 7 . Figure 5 shows the failure and condition of the inner layer of the unqualified cooling element; Figure 6 shows the failure of the outer layer of the unqualified cooling element and the state; Figure 7 shows the uneven distribution of the material density of the unqualified cooling element state.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. scope.

Furthermore, those skilled in the art will appreciate that although some of the embodiments herein include certain features, but not others, included in other embodiments, that combinations of features of the different embodiments are intended to be within the scope of the present application And form different embodiments. For example, in the above claims, any of the claimed embodiments may be used in any combination. The information disclosed in this Background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Industrial Applicability

The present application provides a processing device of a cooling element, a preparation method and a cigarette processing system. The processing device of the cooling element includes a cooling material pretreatment unit and a composite molding unit, the cooling material pretreatment unit is used for pretreatment of the cooling material, and the composite molding unit is used for compounding the tow into a layered structure and molding. Cigarette processing system, including a processing device for cooling elements. The method for preparing a cooling element comprises: pre-processing at least one group of acetate fiber tows and at least one group of polylactic acid fiber tows, respectively, and then splicing, extrusion and compounding to form at least one acetate fiber layer and at least one layer of polylactic acid fiber tows. The layered cooling material of the polylactic acid fiber layer is then rolled into a column to obtain a cooling element. The processing device and preparation method of the cooling element provided by the present application, the prepared cooling element has a stable structure and a good cooling effect.

Furthermore, it will be appreciated that the cooling element processing apparatus, method of manufacture and cigarette processing system of the present application are reproducible and can be used in a variety of industrial applications. For example, the processing device, preparation method and cigarette processing system of the cooling element of the present application can be used in the technical field of heating non-burning cigarettes.

Claims

A processing device for a cooling element, characterized in that it includes a cooling material pretreatment unit and a composite molding unit, the cooling material pretreatment unit is used for preprocessing the tow-shaped cooling material, and the composite molding unit is used for The pretreated tow-like cooling material is composited into a layered structure and formed;

The composite forming unit includes a splicing roller, a squeezing roller and a forming bong, which are arranged in sequence. The layered cooling material is pressurized and compounded, and the forming bong is used for molding the pressurized and compounded layered cooling material to obtain the cooling element.
The processing device according to claim 1, wherein the tow-shaped cooling material is a polylactic acid fiber tow and an acetate fiber tow.
The processing device according to claim 1 or 2, wherein the cooling material pretreatment unit comprises at least two sets of air blowers, pre-stretching rollers, screw rollers, plasticizer spray adding boxes and conveying roller; the air blower is used to blow the tow-shaped cooling material, the pre-stretching roller is used to stretch the tow-shaped cooling material after blowing, and the screw roller is used to blow the tow-shaped cooling material. The stretched tow-shaped cooling material is opened, and the plasticizer spray addition box is used to add plasticizer to the opened tow-shaped cooling material, and the conveying roller is used to add plasticizer. The tow-shaped cooling material after plasticizer is sent to the composite molding unit.
The processing device according to claim 3, wherein the pre-stretching rollers, the screw rollers, the plasticizer spray adding boxes and the conveying rollers in each group are respectively arranged in pairs.
The processing device according to claim 3 or 4, wherein the conveying rollers are provided with a plurality of metal rollers that cooperate with each other in parallel.
The processing device according to any one of claims 3 to 5, wherein each group of the threaded rolls comprises a first threaded roll and a second threaded roll arranged in sequence, the splicing roll and the extrusion roll The pressing rollers are independently arranged in parallel in pairs.
The processing device according to any one of claims 1 to 6, characterized in that a limited-width component is arranged between the cooling material preprocessing unit and the splicing roller.
The processing device according to claim 7, wherein the width limiting component is a set of slidable stainless steel metal rollers for limiting the width of the tow.
The processing device according to any one of claims 1 to 8, wherein a high-pressure wire catcher is arranged between the squeeze roller and the forming bong, and the high-pressure wire catcher is used to catch all The layered cooling material is fed into the forming bong.
A method for preparing a cooling element, comprising:

At least one group of acetate fiber tows and at least one group of polylactic acid fiber tows are pretreated respectively, and then spliced and extruded to form a layered layer comprising at least one acetate fiber layer and at least one polylactic acid fiber layer. The cooling material is then rolled into a column to obtain the cooling element.
The preparation method according to claim 10, wherein the running speed of the tow is 60m/min to 80m/min; the ratio of the running speed of the forming bong to the linear speed of the squeezing roller is 1:1 to 1:1.1.
The preparation method according to claim 10 or 11, wherein the pressure of the squeeze roller is 0.05MPa to 0.35MPa;

The steam pressure of the forming bong is 0.3 MPa to 0.6 MPa.
The preparation method according to any one of claims 10 to 12, wherein the cooling material pretreatment unit comprises a conveying roller, and the ratio of the linear speed of the squeezing roller to the conveying roller is 1: 1.1 to 1:1.3.
A cigarette processing system, characterized by comprising the cooling element processing device according to any one of claims 1 to 9.