Laminated core rod preparation system

Abstract

The present invention belongs to the technical field of core rod rolling, and discloses a system for preparing a laminated core rod, which includes a first core material unwinding, folding and flavoring component, a second core material unwinding, folding and flavoring component, a pre-forming device, a cigarette tongue, a forming paper supply part, a cigarette gun and a cutting piece. The core rod is made of the first core material and the second core material, which are intermittently folded by the first core material and the second core material unwinding, folding and flavoring components, respectively, and then fixed as a whole into an orderly stacking state that is symmetrical left and right and symmetrical up and down by the pre-forming device, and then gathered by the cigarette tongue and wrapped with forming paper. The core material in the laminated core rod includes a continuous folding section and a straight section. The problem that the preparation of core rods for different purposes under the prior art is not universal and the uniformity of the core material is difficult to control is solved.

Description

Technical Field

[0001] The invention relates to the technical field of core rod rolling, and in particular to a preparation system for a laminated core rod. Background Art

[0002] The core rods include filter rods for conventional cigarettes, core rods for heated cigarettes (which produce aerosols containing flavor components after heating) and cooling rods for heated cigarettes. As for filter rods, acetate fiber bundles are mostly used to prepare conventional filter rods, hollow filter rods, polygonal filter rods and embossed corrugated paper filter rods; as for core rods for heated cigarettes, they mainly include core rods with tobacco slices completely cut into strips and orderly filled with tobacco shreds, core rods with tobacco slices longitudinally pressed but not completely cut and filled, core rods with tobacco slices filled relatively orderly, and core rods with tobacco leaf shreds or tobacco slices filled in a disordered manner; as for cooling rods for heated cigarettes, they mainly include hollow rods, embossed and gathered PLA film rods, fiber woven bundle rods, longitudinally continuous embossed corrugated paper rods, etc. For example, the heating cigarette "Marlboro" of Philip Morris International uses embossed and gathered (non-uniformly gathered asymmetric form) PLA film rods for the cooling section.

[0003] For different uses, core rods are prepared using different process technologies, and the preparation process is not universal. The existing filter rod preparation process cannot be used to make core rods for heated cigarettes, and the existing process for making core rods for heated cigarettes is not suitable for making filter rods and cooling rods.

[0004] In addition, the core rods used for heated cigarettes involve processes such as tobacco sheet pressing (not completely cut), strip cutting (completely cut), and shredding. Not only are they complicated to make, but the uniformity of the core material filling is also difficult to control, which brings difficulties to the control of the draw resistance and consistency of physical indicators of the core rods. Summary of the invention

[0005] The object of the present invention is to provide a laminated core rod preparation device to solve the problem that the core rod preparation by different processes in the prior art is not universal and the uniformity of the core material is difficult to control.

[0006] To achieve this object, the present invention adopts the following technical scheme: The present invention provides a laminated core rod preparation system, comprising a first core material unwinding, folding and flavoring component, a second core material unwinding, folding and flavoring component, a pre-forming device, a cigarette tongue, a forming paper supply unit, a cigarette gun and a cutting piece. The core rod is made of the first core material and the second core material, which are intermittently folded by the first core material and the second core material unwinding, folding and flavoring components respectively, and then fixed as a whole into an orderly stacked state that is symmetrical left and right and symmetrical up and down by the pre-forming device, and then formed by being gathered by the cigarette tongue and wrapped with forming paper. The core material in the core rod includes a continuous folding section and a straight section.

[0007] Preferably, the core material is fiber material.

[0008] Preferably, the core material is tobacco flakes, paper material or acetate material.

[0009] Preferably, the first core material unwinding, folding and fragrance adding assembly comprises a first core material, a first unwinding device, a first folding roller, a first fragrance adding device and a first output roller; the second core material unwinding, folding and fragrance adding assembly comprises a second core material, a second unwinding device, a second folding roller, a second fragrance adding device and a second output roller, and the first core material unwinding, folding and fragrance adding assembly and the second core material unwinding, folding and fragrance adding assembly are arranged up and down.

[0010] Preferably, the first folding roller and the second folding roller both include an upper roller and a lower roller, the upper roller includes multiple sections of upper roller tooth groove areas and multiple sections of upper roller smooth surface areas, the spacing between which can be equal or unequal; the width of the upper roller tooth groove area matches the width of the core material folding section; the width of the upper roller smooth surface area matches the width of the core material straight section; the lower roller includes multiple sections of lower roller tooth groove areas and multiple sections of lower roller smooth surface areas, the spacing between which can be equal or unequal; the width of the lower roller tooth groove area matches the width of the core material folding section; the width of the lower roller smooth surface area matches the width of the core material straight section; the width of the upper roller and the lower roller is greater than the width of the core material.

[0011] Preferably, the upper roller tooth tops of the upper roller tooth groove area and the lower roller tooth bottoms of the lower roller tooth groove area are staggered and matched with each other, and the upper roller tooth bottoms of the upper roller tooth groove area and the lower roller tooth tops of the lower roller tooth groove area are staggered and matched with each other; the upper roller smooth surface area of ​​the upper roller tooth groove area and the lower roller smooth surface area of ​​the lower roller tooth groove area are matched with each other, and the depth of the staggered overlap between the upper roller tooth top and the lower roller tooth bottom, and the upper roller tooth bottom and the lower roller tooth top is between 0.2mm and 2mm, the number of the upper roller tooth tops and the upper roller tooth bottoms is between 2 and 100, and the number of the lower roller tooth bottoms and the lower roller tooth tops is between 2 and 100.

[0012] Preferably, the pre-forming device is overall conical, wherein the inlet end face size is larger than the outlet end face size, and the outlet end face size matches the tongue inlet size, which is conducive to the smooth penetration of the core material and gradual closing.

[0013] Preferably, the pre-forming device includes a forming outer ring and a forming inner core, which are coaxial, and the forming outer ring and the forming inner core cooperate to form continuous folding grooves and straight grooves; the forming inner core includes a first pre-forming area and a second pre-forming area, which are symmetrically arranged up and down with the second virtual dividing plane as the symmetry plane, and the forming inner core has a left-right symmetrical structure.

[0014] Preferably, the first core material and the second core material are respectively loaded into the first pre-molding area and the second pre-molding area in the pre-molding device, and the first core material and the second core material are evenly distributed in the molding area on the left and right. The straight section of the core material corresponds to the straight groove of the pre-molding area, and the folded section of the core material corresponds to the folded groove of the pre-molding area. After the first core material and the second core material are respectively fixed as a whole in the first pre-molding area and the second pre-molding area, they are gathered by the tobacco tongue and wrapped with molding paper to form a laminated core rod that is symmetrical left-right and top-down, and has continuous folded sections and straight sections.

[0015] Beneficial effects: The laminated core rod prepared by the present invention adopts segmental folding and overall shaping, and the core material is evenly distributed symmetrically up and down and left and right, thereby ensuring uniform filling of the core material; and the core material is folded in the folding section, and the folding section plays a supporting role, so that adjacent core materials will not be completely fitted together, thereby achieving smooth airflow of the laminated core rod. At the same time, by selecting different core materials and using the laminated core rod preparation system of the present invention, it can be used to prepare cigarette core rods and cooling rods for heating cigarettes, and filter rods for conventional cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic cross-sectional view of a laminated core rod of the present invention;

[0017] Figure 2 is a schematic diagram of a laminated core rod preparation system of the present invention;

[0018] Figure 3 It is a schematic diagram of the overall structure of the folding rollers of the present invention;

[0019] Figure 4 is a schematic diagram of a folded state of the first core material of the present invention;

[0020] Figure 5 is a schematic cross-sectional view of a pre-shaped device of the present invention;

[0021] Figure 6 It is a schematic diagram of the overall structure of the pre-setting device of the present invention.

[0022] In the figure: 1-laminated core rod, 11-first core material, 101-second core material, 12-molding paper, 13-first virtual dividing surface, 14-first cross section, 15-first straight section, 16-first folding section, 104-second cross section, 105-second straight section, 106-second folding section, 21-first unwinding device, 22-first folding roller pair, 220-upper roller, 221-lower roller, 222-upper roller tooth groove area, 223-upper roller smooth surface area, 224-lower roller tooth groove area, 225-lower roller smooth surface area, 226-upper roller tooth top, 227-upper roller tooth bottom, 228-lower roller Bottom of tooth, 229-top of tooth of lower roller, 23-first flavoring device, 24-first output roller, 201-second unwinding device, 202-second folding roller, 203-second flavoring device, 204-second output roller, 25-pre-forming device, 205-first pre-forming area, 206-second pre-forming area, 207-second virtual dividing surface, 250-forming outer ring, 251-forming inner core, 252-folding groove, 253-straight groove, 254-entrance end face, 255-exit end face, 26-cigarette tongue, 27-molding paper supply part, 28-cigarette gun, 29-cutting piece. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0027] like Figures 1 to 6 As shown, the core rod 1 made by the laminated core rod preparation system of the present invention is as follows: Figure 1 As shown, it includes a first core material 11, a second core material 101, and a molding paper 12. The first virtual dividing surface 13 divides the laminated core rod 1 into two parts, a first section 14 and a second section 104, which are symmetrical up and down. The first core material 11 is filled to form the first section 14, and the first section 14 includes a continuous first straight section 15 and a first folded section 16, and they are stacked in order from left to right. The second core material 101 is filled to form the second section 104, and the second section 104 includes a continuous second straight section 105 and a second folded section 106, and they are stacked in order from left to right.

[0028] A laminated core rod preparation system of the present invention comprises a first unwinding device 21, a first folding roller 22, a first flavoring device 23, a first output roller 24, a second unwinding device 201, a second folding roller 202, a second flavoring device 203, a second output roller 204, a pre-forming device 25, a cigarette tongue 26, a forming paper supply unit 27, a cigarette gun 28, and a cutting member 29. The rolled first core material 11 is unrolled by the first unwinding device 21 and conveyed to the first folding roller 22, folded by the first folding roller 22, flavored by the first flavoring device 23, conveyed by the first output roller 24, shaped in the first pre-forming area 205 in the pre-forming device 25, and enters the cigarette tongue 26. The rolled second core material 101 is unrolled by the second unwinding device 201 and conveyed to the second folding roller 202. After being folded by the second folding roller 202, it is flavored by the second flavoring device 203, conveyed by the second output roller 204, shaped in the second pre-shaped area 206 of the pre-shaped device 25, and enters the tobacco tongue 26. After being shaped in the pre-shaped device 25, the first core material 11 and the second core material 101 are gradually gathered in the tobacco tongue 26, further gathered after entering the tobacco gun 28, and wrapped by the shaping paper 12 output by the shaping paper supply part 27 to form tobacco strips, and then cut into laminated core rods of a certain length by the cutting member 29.

[0029] The overall structure of the first folding roller mainly includes an upper roller 220 and a lower roller 221. The upper roller 220 includes multiple sections of upper roller tooth groove areas 222 and multiple sections of upper roller smooth surface areas 223, and the spacing between them can be equal or unequal. The width of the upper roller tooth groove area 222 matches the width of the first folding section 16. The width of the upper roller smooth surface area 223 matches the width of the first straight section 15. The lower roller 221 includes multiple sections of lower roller tooth groove areas 224 and multiple sections of lower roller smooth surface areas 225, and the spacing between them can be equal or unequal. The width of the lower roller tooth groove area 224 matches the width of the first folding section 16. The width of the lower roller smooth surface area 225 matches the width of the first straight section 15. The widths of the upper roller 220 and the lower roller 221 are slightly larger than the widths of the first core material 11 and the second core material 101. The second folding roller 202 is consistent with the first folding roller 22.

[0030] The first core material 11 is located between the upper roller 220 and the lower roller 221, the upper roller tooth top 226 of the upper roller tooth groove area 222 and the lower roller tooth bottom 228 of the lower roller tooth groove area 224 are staggered and matched with each other, and the upper roller tooth bottom 227 of the upper roller tooth groove area 222 and the lower roller tooth top 229 of the lower roller tooth groove area 224 are staggered and matched with each other, and the first core material 11 is folded to form a first folded section 16. The upper roller polished surface area 223 of the upper roller tooth groove area 222 and the lower roller polished surface area 225 of the lower roller tooth groove area 224 are matched with each other, so that the first core material 11 is in a flattened state to form a first straight section 15. The staggered overlap size of the upper roller tooth top 226 and the lower roller tooth bottom 228, and the upper roller tooth bottom 227 and the lower roller tooth top 229 is related to the properties of the first core material 11, and the preferred overlap size is 0.2-2mm. The shape and number of the upper roller tooth top 226 and the upper roller tooth bottom 227 are related to the properties of the first core material 11, and the preferred number is 2 to 100. The shape and number of the lower roller tooth bottom 228 and the lower roller tooth top 229 are related to the properties of the first core material 11, and the preferred number is 2 to 100. The folded state of the second core material 101 is consistent with the folded state of the first core material 11.

[0031] The pre-forming device mainly includes a forming outer ring 250 and a forming inner core 251, which are coaxially arranged. The forming outer ring 250 cooperates with the forming inner core 251 to form a folding groove 252 and a straight groove 253. The forming inner core includes a first pre-forming area 205 and a second pre-forming area 206, which are symmetrically arranged up and down with the second virtual dividing surface 207 as the symmetry plane. The first core material 11 is pre-loaded into the first pre-forming area 205, and the folding groove 252 can make the first core material 11 folded by the first folding roller 22 continuously and orderly folded; similarly, the second core material 101 is pre-loaded into the second pre-forming area 206, so that the second core material 101 folded by the second folding roller 202 can be continuously and orderly folded.

[0032] The shaping outer ring 250 and the shaping inner core 251 are tapered as a whole, so that the first core material 11 and the second core material 101 can be smoothly inserted and gradually closed. The size of the inlet end face 254 is slightly larger than the size of the outlet end face 255. The size of the inlet end face 254 matches the size of the first core material 11 and the second core material 101, so that the first core material 11 and the second core material 101 can enter smoothly. The size of the outlet end face 255 matches the size of the inlet of the tongue 26, which is conducive to the smooth insertion and gradual closing of the core material.

[0033] The first core material 11 and the second core material 101 are respectively loaded into the first pre-molding area 205 and the second pre-molding area 206 of the pre-molding device, and the core materials are evenly distributed in the molding area. At this time, the straight section 15 of the first core material 11 corresponds to the straight groove 253 of the pre-molding area, and the folded section 16 of the first core material 11 corresponds to the folded groove 252 of the pre-molding area. Similarly, the straight section and folded section of the second core material 101 correspond to the straight groove and folded groove of the second pre-molding area 206, respectively.

[0034] After the first core material and the second core material are fixed as a whole in the first pre-forming area and the second pre-forming area, the tobacco tongue is gathered and wrapped with forming paper to form a laminated core rod that is symmetrical left and right, top and bottom, and has continuous folding areas and flat areas. By switching different core materials, different processing types are provided for cigarettes, the production line is unified, and the versatility of core rod manufacturing is improved.

[0035] Embodiment 1:

[0036] The core material is tobacco flakes, and a laminated tobacco core rod for preparing heated cigarettes is prepared.

[0037] Embodiment 2:

[0038] The core material is paper material, and a laminated filter rod for conventional cigarettes is prepared.

[0039] Embodiment three:

[0040] The core material is acetate film, and a cooling rod for heating cigarettes is prepared.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A system for preparing a laminated core rod, characterized in that: It includes a first core material unwinding, folding and flavoring component, a second core material unwinding, folding and flavoring component, a pre-forming device, a cigarette tongue, a shaping paper supply unit, a cigarette gun and a cutting piece. The core rod is made of the first core material and the second core material, which are intermittently folded by the first core material and the second core material unwinding, folding and flavoring components respectively, and then fixed as a whole into a left-right symmetrical and top-bottom symmetrical stacking state by the pre-forming device, and then gathered by the cigarette tongue and wrapped with shaping paper. The core material in the stacked core rod includes a continuous folding section and a straight section, and the core material is folded in the folding section.

2. The system for preparing a laminated core rod according to claim 1, characterized in that: The core material is fiber material.

3. The system for preparing a laminated core rod according to claim 2, characterized in that: The core material is tobacco flakes, paper material or acetate fiber material.

4. The system for preparing a laminated core rod according to claim 1, characterized in that: The first core material unwinding, folding and fragrance adding assembly comprises a first core material, a first unwinding device, a first folding roller, a first fragrance adding device and a first output roller; the second core material unwinding, folding and fragrance adding assembly comprises a second core material, a second unwinding device, a second folding roller, a second fragrance adding device and a second output roller, and the first core material unwinding, folding and fragrance adding assembly and the second core material unwinding, folding and fragrance adding assembly are arranged up and down.

5. The system for preparing a laminated core rod according to claim 4, characterized in that: The first folding roller and the second folding roller both include an upper roller and a lower roller, the upper roller includes multiple sections of upper roller tooth groove areas and multiple sections of upper roller smooth surface areas, the spacing between which can be equal or unequal; the width of the upper roller tooth groove area matches the width of the core material folding section; the width of the upper roller smooth surface area matches the width of the core material straight section; the lower roller includes multiple sections of lower roller tooth groove areas and multiple sections of lower roller smooth surface areas, the spacing between which can be equal or unequal; the width of the lower roller tooth groove area matches the width of the core material folding section; the width of the lower roller smooth surface area matches the width of the core material straight section; the width of the upper roller and the lower roller is greater than the width of the core material.

6. The system for preparing a laminated core rod according to claim 5, characterized in that: The upper roller tooth tops of the upper roller tooth groove area and the lower roller tooth bottoms of the lower roller tooth groove area are staggered and matched with each other, and the upper roller tooth bottoms of the upper roller tooth groove area and the lower roller tooth tops of the lower roller tooth groove area are staggered and matched with each other; the upper roller smooth surface area of ​​the upper roller tooth groove area and the lower roller smooth surface area of ​​the lower roller tooth groove area are matched with each other, and the depth of the staggered overlap between the upper roller tooth top and the lower roller tooth bottom, and the upper roller tooth bottom and the lower roller tooth top is between 0.2mm and 2mm, the number of the upper roller tooth tops and the upper roller tooth bottoms is between 2 and 100, and the number of the lower roller tooth bottoms and the lower roller tooth tops is between 2 and 100.

7. The system for preparing a laminated core rod according to claim 1, characterized in that: The pre-forming device is tapered as a whole, wherein the inlet end face size is larger than the outlet end face size, and the outlet end face size matches the inlet size of the cigarette tongue, which is conducive to the smooth penetration of the core material and the gradual closing.

8. The system for preparing a laminated core rod according to claim 7, characterized in that: The pre-forming device includes a forming outer ring and a forming inner core, which are coaxial. The forming outer ring and the forming inner core cooperate to form continuous folding grooves and straight grooves; the forming inner core includes a first pre-forming area and a second pre-forming area, which are symmetrically arranged up and down with the second virtual dividing plane as the symmetry plane, and the forming inner core has a left-right symmetrical structure.

9. The system for preparing a laminated core rod according to claim 7, characterized in that: The first core material and the second core material are respectively loaded into the first pre-molding area and the second pre-molding area of ​​the pre-molding device, and the first core material and the second core material are evenly distributed in the molding area on the left and right, the straight section of the core material corresponds to the straight groove of the pre-molding area, and the folded section of the core material corresponds to the folded groove of the pre-molding area. After the first core material and the second core material are respectively fixed as a whole in the first pre-molding area and the second pre-molding area, they are gathered by the tobacco tongue and wrapped with molding paper to form a laminated core rod that is symmetrical left and right, symmetrical up and down, and has continuous folded sections and straight sections.

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