Method for rolling square cigar

Abstract

The invention relates to the technical field of cigar production and processing, and discloses a square cigar rolling method. According to an existing cigar rolling method, a cigarette blank can be uniformly stressed only by frequent overturning, and meanwhile, indentation is easily caused by few overturning times or improper overturning time control. In order to solve the problem of overturning in the shaping process of cigar rolling, a cigarette blank is pressed and shaped into a cigarette blank with seamed edges and the problem of overturning is avoided by converting'indentations' into appearance characteristics necessary for cigars, and the pressed cigar blank forms a regular quadrangular prism shape by providing a corresponding shaper. When the shaping device is used for pressing and forming a quadrangular prism shape, the stress can be uniform, and the formation of redundant indentations is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of cigar production and processing, and in particular to a method for rolling square cigars. Background Art

[0002] In recent years, the domestic cigar market has continued to expand. With the continuous segmentation of the consumer market and the strengthening of the trend of personalization, consumers' demand for cigar products has become increasingly diversified. With its unique shape, taste and packaging design, special-shaped cigars can meet the preferences and needs of different consumers and enhance the brand image and product competitiveness. As a unique cigar type, square box-pressed cigars have become increasingly popular among cigar lovers in recent years. In addition to the advantages in appearance, square cigars are not easy to roll during transportation due to their square design, making them easy to transport and store. However, the production process of square cigars is relatively complicated. Only through a special pressing process can the shape of the cigars become regular.

[0003] A complete cigar consists of three parts: the cigar core, the binder, and the wrapper. The cigar rolling process is to first manually spirally fold a single cigar core tobacco leaf into a single leaf bundle, which is then gathered and wrapped with a binder to form a cylindrical inner embryo. The inner embryo is then pressed by a shaper to form a certain specification and shape. After shaping, the appearance of the tobacco embryo is flat and uniform, and a layer of wrapper is wrapped around the outer layer of the tobacco embryo to complete the cigar rolling. However, at present, the tobacco embryo needs to be flipped multiple times to ensure that the appearance of the cigar is uniform, but flipping requires additional manual operation, which makes the cigar production efficiency low.

[0004] For example, the patent application publication number CN113679093A discloses a method for rolling cigars, wherein the shaping is performed by placing the cigar embryo in a shaping mold, shaping under the action of external force, and shaping for 2 to 3 days, and opening the mold every 5 hours during the shaping process to turn the embryo over. The patent has the following disadvantages: the cigars rolled by the method provided by the patent need to be turned over every 5 hours during shaping to ensure that the shaping pressure of the embryo is consistent and the appearance of the finished product is uniform, but such frequent turning will increase the labor cost and reduce the production efficiency. Summary of the invention

[0005] In the existing cigar rolling process, there is a problem of leaving indentations when pressing the inner embryo. In order to solve the above technical problem, the present invention provides a method for rolling a square cigar.

[0006] The specific technical scheme of the present invention is: The present invention provides a method for rolling a square cigar, comprising the following steps: Step S1: Provide a shaper: The shaping device comprises a mold upper cover, a mold base and symmetrically arranged pressure strips, the mold base comprises a cigarette embryo shaping groove, and the cigarette embryo shaping groove is formed by two side surfaces with an angle of not less than 90 degrees; the mold upper cover comprises a pressing groove; the pressure strips are arranged in the pressing groove; when the cigarette embryo is pressed, the mold upper cover is covered with the mold base, and the symmetrically arranged pressure strips and the cigarette embryo shaping groove form a space for accommodating the cigarette embryo, and the space is a quadrangular prism; Step S2: rolling the tobacco embryo; Step S3: shaping the tobacco embryo, wherein the shaping device provided in step S1 is used for shaping, and the shaping method comprises the following operations: placing the tobacco embryo in the tobacco embryo shaping groove, placing the symmetrically arranged pressure strips in the pressing groove, covering the mold upper cover with the mold base, and applying pressure for shaping.

[0007] The square cigar of the present invention, that is, the cigar having a quadrangular prism shape, is rolled and shaped through the above steps S1 to S3.

[0008] In the existing cigar rolling method, the problem of indentation is avoided by repeatedly turning over during the pressing process. The present invention provides a method of turning "indentation" into a necessary appearance feature of cigars, so that the tobacco embryo is pressed and shaped into a tobacco embryo with edges, thereby avoiding the turning problem. However, how to transform the position where indentation is prone to occur during shaping into the four side edges of the cigar of the present invention is an important part of the problem solved by the present invention.

[0009] Firstly, the present invention makes the angle between the two side surfaces of the tobacco embryo shaping groove not less than 90°, which has two meanings: the angle formed by the two side surfaces means that two of the four side edges of the cigar are located on the covering plane of the mold upper cover and the mold base, which is conducive to pressure balance and avoids the existence of other indentations except the indentations at the side edges; the angle being not less than 90° is conducive to pressure balance.

[0010] Secondly, the symmetrically arranged pressure strips can ensure that the cigarette embryo is evenly stressed in all directions, thus avoiding deformation of the cigarette embryo or unnecessary indentations due to uneven stress. If the mold only exerts downward force during the pressing process, the cigarette embryo is unevenly stressed and the pressed cigarette embryo will be severely deformed.

[0011] As a preferred embodiment of the above method, the mold upper cover is provided with a positioning protrusion, and the mold base is provided with a positioning cavity for accommodating the positioning protrusion.

[0012] After the mold cover and the mold base are closed, the positioning protrusion is embedded in the positioning cavity. Due to the embedding and positioning effect of the positioning protrusion and the positioning cavity, the pressure strip arranged on the mold cover is not easy to move during the process of pressing the tobacco embryo to shape, which is conducive to uniform pressing force.

[0013] Further preferably, the number of the positioning protrusions is at least 2.

[0014] Still further preferably, the number of the positioning protrusions is 3, which are arranged on both sides of the pressing protrusion.

[0015] As a preferred embodiment of the above method, the tobacco embryo shaping groove is formed by two side surfaces with an angle of 90°. Thus, the obtained cigar has a regular quadrangular prism shape, which is more beautiful.

[0016] As a preferred embodiment of the above method, the cross-sectional size of the space is 0.2-0.4 mm smaller than the target size of the tobacco embryo.

[0017] As a preferred embodiment of the above method, the size of the cigarette embryo obtained by rolling the cigarette embryo is 2-3 mm larger than the cross-sectional size of the space.

[0018] In the above method of the present invention, the cross-sectional shape and size of the space are the shape and size of the tobacco embryo after shaping, that is, the size of the smoking end face or the ignition end face of the cigar. For the cigar with a quadrangular prism shape of the present invention, assuming that a target size of 1.5mm×1.5mm with a regular quadrangular prism cross section is required, preferably, the space is set to a regular quadrangular prism with a size of (1.5mm-0.2~0.4mm)×(1.5mm-0.2~0.4mm), and when the tobacco embryo is rolled in step S2, the diameter of the rolled tobacco embryo is 2~3mm higher than the longest diameter of the cross section of the space. The reason for doing so is that, on the one hand, it is ensured that the shaping device acts on the tobacco embryo to form a quadrangular prism, and on the other hand, the larger the circumference of the rolled tobacco embryo, the longer the shaping time required, and the more obvious the subsequent expansion. At the same time, it will cause the middle position of the tobacco embryo to be too loose, affecting the inhalation resistance.

[0019] As a preferred embodiment of the above method, the time of pressurizing and shaping is not less than 1 hour.

[0020] The shorter the shaping time, the worse the shaping effect of the tobacco embryo, and the more obvious the subsequent expansion. In order to keep the angular prism shape of the tobacco embryo after shaping, the time of pressurization shaping should be no less than 1 hour.

[0021] Compared with the prior art, the present invention has the following technical effects: The existing cigar rolling method requires frequent flipping to make the tobacco embryos evenly stressed. At the same time, a small number of flipping or improper flipping time control can easily cause indentations. In order to solve the flipping problem in the shaping process of cigar rolling, the present invention provides a method of turning "indentation" into a necessary appearance feature of cigars, so that the tobacco embryos are pressed and shaped into tobacco embryos with edges to avoid the flipping problem, and by providing a corresponding shaping device, the pressed cigar embryos are formed into a regular quadrangular prism shape. When the shaping device presses and forms the quadrangular prism shape, the force can be evenly applied to avoid the formation of unnecessary indentations. Specifically, the sources of the effect of the shaper when pressing and forming a quadrangular prism shape include: the tobacco embryo shaping groove on the mold base is formed by two side surfaces with an angle of not less than 90°, which is conducive to pressure balance and avoids the formation of other indentations except for the indentations at the side edges; through the use of symmetrically arranged pressure strips, it can be ensured that the tobacco embryo is subjected to uniform force in all directions of up, down, left and right, avoiding deformation of the tobacco embryo or unnecessary indentations due to uneven force. If there is only downward force during the mold pressing process, the tobacco embryo is subjected to uneven force and the pressed tobacco embryo will be severely deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural schematic diagram of a mold base; Figure 2 It is a schematic diagram of the top view of the mold base; Figure 3 A schematic diagram of the structure of the mold cover; Figure 4 It is a schematic diagram of the structure after the mold upper cover and the mold base are covered; Figure 5 A schematic diagram of the structure of a layering strip; Figure 6 A schematic diagram of the structure of a tobacco embryo; Figure 7 The square cigars are obtained by shaping in Example 1 and Comparative Example 1, wherein the first and second cigarettes from the left are the square cigars obtained by shaping in Comparative Example 1 and Example 1 respectively; Figure 8 It is a structural schematic diagram of the mold base in Comparative Example 1; Fig. 9 It is a schematic diagram of the structure of the mold cover in Comparative Example 1; The markings in the figure are: 1. mold base, 101. tobacco embryo shaping groove, 102. positioning cavity, 2. mold cover, 201. pressing groove, 202. positioning protrusion, 3. pressure strip, A, space for accommodating tobacco embryo. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with embodiments. Those of ordinary skill in the art will be able to implement the present invention based on these descriptions. In addition, the embodiments of the present invention involved in the following description are generally only embodiments of a part of the present invention, rather than all embodiments. Therefore, based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work should belong to the scope of protection of the present invention.

[0024] Overall embodiment A method for rolling a square cigar is provided, comprising the following steps: Step S1: Provide a shaper: like Figure 4 As shown, the shaping device comprises a mold cover 2, a mold base 1 and symmetrically arranged pressure strips 3; Figure 1 , Figure 2 and Figure 4 As shown, the mold base 1 includes a cigarette embryo shaping groove 101, and the cigarette embryo shaping groove is formed by two side surfaces with an angle of not less than 90°; Figure 3 , Figure 4 As shown, the mold cover 2 includes a pressing groove 201; Figure 4 As shown, the pressure strip 3 is arranged in the pressing groove 201; Figure 4 As shown, when the cigarette embryo is pressed, the mold upper cover 2 is covered with the mold base 1, and the symmetrically arranged pressure strips 3 and the cigarette embryo shaping grooves form a space A for accommodating the cigarette embryo, and the space is a quadrangular prism; Step S2: Rolling the tobacco embryo: The tobacco leaves of the filler are manually spirally folded into single leaf bundles, and the single leaf bundles are gathered and wrapped with a binder to form a cylindrical inner embryo, the structure of which is as follows: Figure 6 shown.

[0025] Step S3: shaping the cigarette embryo, wherein the shaping device provided in step S1 is used for shaping, and the shaping method comprises the following operations: placing the cigarette embryo in the cigarette embryo shaping groove, placing the symmetrically arranged pressure strips 3 in the pressing groove, covering the mold upper cover with the mold base, and applying pressure to shape.

[0026] The square cigar, i.e., the cigar having a quadrangular prism shape, is rolled and shaped through the above steps S1 to S3.

[0027] In the existing cigar rolling method, the problem of indentation is avoided by repeatedly turning over during the pressing process. This embodiment provides a method of turning "indentation" into a necessary appearance feature of cigars, so that the tobacco embryo is pressed and shaped into a tobacco embryo with edges, thereby avoiding the turning problem. However, how to transform the position where indentation is prone to occur during shaping into the four side edges of the cigar of the present invention is an important part of the problem solved by this embodiment.

[0028] The structural schematic diagram of the tobacco embryo shaping tank 101 is as follows Figure 1 In this embodiment, the angle between the two sides of the tobacco embryo shaping groove is not less than 90°, which has two meanings: the angle between the two sides means that two of the four side edges of the cigar are located on the covering plane of the mold upper cover and the mold base, which is conducive to pressure balance and avoids the presence of other indentations except for the indentations at the side edges; the angle is not less than 90°, which is conducive to pressure balance.

[0029] The structural diagram of the layering strip is as follows Figure 5 As shown, the pressure strips 3 are symmetrically arranged, and the pressure strips symmetrically arranged on the left and right are detachable and movably connected. In this embodiment, the symmetrically arranged pressure strips are used together to ensure that the cigarette embryo is uniformly stressed in all directions, thus avoiding deformation of the cigarette embryo or unnecessary indentations due to uneven stress. If there is only downward force during the pressing process of the mold, the cigarette embryo is unevenly stressed and the pressed cigarette embryo will be severely deformed.

[0030] As a preferred embodiment of the above method, Figure 1 , Figure 2 As shown, the mold cover 2 is provided with a positioning protrusion 202. Figure 3 As shown, the mold base 1 is provided with a positioning cavity 102 for accommodating the positioning protrusion.

[0031] After the mold cover and the mold base are closed, the positioning protrusion is embedded in the positioning cavity. Due to the embedding and positioning effect of the positioning protrusion and the positioning cavity, the pressure strip arranged on the mold cover is not easy to move during the process of pressing the tobacco embryo to shape, which is conducive to uniform pressing force.

[0032] Further preferably, the number of the positioning protrusions is at least 2.

[0033] Still further preferably, the number of the positioning protrusions is 3, which are arranged on both sides of the pressing protrusion.

[0034] As a preferred embodiment of the above method, the tobacco embryo shaping groove is formed by two side surfaces with an angle of 90°. Thus, the obtained cigar has a regular quadrangular prism shape, which is more beautiful.

[0035] As a preferred embodiment of the above method, the cross-sectional size of the space is 0.2-0.4 mm smaller than the target size of the tobacco embryo.

[0036] As a preferred embodiment of the above method, the size of the cigarette embryo obtained by rolling the cigarette embryo is 2-3 mm larger than the cross-sectional size of the space.

[0037] In the above method of this embodiment, the end face shape and size of the space are the shape and size of the cross section after the tobacco embryo is shaped, that is, the size of the end face of the cigar smoke or the ignition end face. For a cigar with a quadrangular prism shape, assuming that the cross section of the regular quadrangular prism needs to be a target size of 1.5mm×1.5mm, then preferably, the cross section of the space with the regular quadrangular prism shape is set to (1.5mm-0.2~0.4mm)×(1.5mm-0.2~0.4mm). When rolling the tobacco embryo in step S2, the diameter of the rolled tobacco embryo is 2~3mm higher than the longest diameter of the cross section of the space. The reason for doing so is that, on the one hand, it is ensured that the shaper acts on the tobacco embryo to form a quadrangular prism. On the other hand, the larger the circumference of the rolled tobacco embryo, the longer the shaping time required, the more obvious the subsequent expansion, and at the same time, it will cause the middle position of the tobacco embryo to be too loose, affecting the inhalation resistance.

[0038] As a preferred embodiment of the above method, the time of pressurizing and shaping is not less than 1 hour.

[0039] The shorter the shaping time, the worse the shaping effect of the tobacco embryo, and the more obvious the subsequent expansion. In order to keep the angular prism shape of the tobacco embryo after shaping, the time of pressurization shaping should be no less than 1 hour.

[0040] Compared with the prior art, this embodiment has the following technical effects: The existing cigar rolling method requires frequent flipping to make the tobacco embryos evenly stressed. At the same time, a small number of flipping or improper flipping time control can easily cause indentations. In order to solve the flipping problem in the shaping process of cigar rolling, this embodiment provides a method of turning "indentation" into a necessary appearance feature of cigars, so that the tobacco embryos are pressed and shaped into tobacco embryos with edges to avoid the flipping problem, and by providing a corresponding shaping device, the pressed cigar embryos are formed into a regular quadrangular prism shape. When the shaping device presses and forms the quadrangular prism shape, the force can be evenly applied to avoid the formation of unnecessary indentations. Specifically, the sources of the effect of the shaper when pressing and forming a quadrangular prism shape include: the tobacco embryo shaping groove on the mold base is formed by two side surfaces with an angle of not less than 90°, which is conducive to pressure balance and avoids the formation of other indentations except for the indentations at the side edges; through the use of symmetrically arranged pressure strips, it can be ensured that the tobacco embryo is subjected to uniform force in all directions of up, down, left and right, avoiding deformation of the tobacco embryo or unnecessary indentations due to uneven force. If there is only downward force during the mold pressing process, the tobacco embryo is subjected to uneven force and the pressed tobacco embryo will be severely deformed.

[0041] Example 1 A method for rolling a square cigar is provided, comprising the following steps: Step S1: Provide a shaper: like Figure 4As shown, the shaping device comprises a mold cover 2, a mold base 1 and symmetrically arranged pressure strips 3; Figure 1 , Figure 2 and Figure 4 As shown, the mold base 1 includes a cigarette embryo shaping groove 101, and the cigarette embryo shaping groove is formed by two side surfaces with an angle of 90°; Figure 3 , Figure 4 As shown, the mold cover 2 includes a pressing groove 201; Figure 4 As shown, the pressure strip 3 is arranged in the pressing groove 201; Figure 4 As shown, when the cigarette embryo is pressed, the mold upper cover 2 is covered with the mold base 1, and the symmetrically arranged pressure strips 3 and the cigarette embryo shaping grooves form a space A for accommodating the cigarette embryo, and the space is a quadrangular prism; Step S2: Rolling the tobacco embryo: The tobacco leaves of the filler are manually spirally folded into single leaf bundles, and the single leaf bundles are gathered and wrapped with a binder to form a cylindrical inner embryo, the structure of which is as follows: Figure 6 shown.

[0042] Step S3: shaping the cigarette embryo, wherein the shaping device provided in step S1 is used for shaping, and the shaping method comprises the following operations: placing the cigarette embryo in the cigarette embryo shaping groove, placing the symmetrically arranged pressure strips 3 in the pressing groove, covering the mold upper cover with the mold base, and applying pressure to shape.

[0043] The square cigar, i.e., the cigar having a quadrangular prism shape, is rolled and shaped through the above steps S1 to S3.

[0044] In the existing cigar rolling method, the problem of indentation is avoided by repeatedly turning over during the pressing process. This embodiment provides a method of turning "indentation" into a necessary appearance feature of cigars, so that the tobacco embryo is pressed and shaped into a tobacco embryo with edges, thereby avoiding the turning problem. However, how to transform the position where indentation is prone to occur during shaping into the four side edges of the cigar of the present invention is an important part of the problem solved by this embodiment.

[0045] The structural schematic diagram of the tobacco embryo shaping tank 101 is as follows Figure 1 In this embodiment, the angle between the two sides of the tobacco embryo shaping groove is 90°, which has two meanings: the angle between the two sides means that two of the four side edges of the cigar are located on the covering plane of the mold upper cover and the mold base, which is conducive to pressure balance and avoids the existence of other indentations except for the indentations at the side edges; the angle is not less than 90°, which is conducive to pressure balance.

[0046] The structural diagram of the layering strip is as follows Figure 5As shown, the pressure strips 3 are symmetrically arranged, and the pressure strips symmetrically arranged on the left and right are detachable and movably connected. In this embodiment, the symmetrically arranged pressure strips are used together to ensure that the cigarette embryo is uniformly stressed in all directions, thus avoiding deformation of the cigarette embryo or unnecessary indentations due to uneven stress. If there is only downward force during the pressing process of the mold, the cigarette embryo is unevenly stressed and the pressed cigarette embryo will be severely deformed.

[0047] In this embodiment, if Figure 1 , Figure 2 As shown, the mold cover 2 is provided with a positioning protrusion 202. Figure 3 As shown, the mold base 1 is provided with a positioning cavity 102 for accommodating the positioning protrusion.

[0048] After the mold cover and the mold base are closed, the positioning protrusion is embedded in the positioning cavity. Due to the embedding and positioning effect of the positioning protrusion and the positioning cavity, the pressure strip arranged on the mold cover is not easy to move during the process of pressing the tobacco embryo to shape, which is conducive to uniform pressing force.

[0049] In this embodiment, the number of the positioning protrusions is 3, which are arranged on both sides of the pressing protrusion.

[0050] In this embodiment, the end surface dimension of the space is 0.3 mm smaller than the target dimension of the cigarette embryo.

[0051] In this embodiment, the size of the cigarette embryo rolled from the cigarette embryo is 2.5 mm larger than the cross-sectional size of the space.

[0052] In this embodiment, the end face shape and size of the space are the shape and size of the cross section of the tobacco embryo after shaping, that is, the size of the smoking end face or the ignition end face of the cigar. For example, if the cross section of the space of the regular quadrangular prism needs to be the target size of 1.5mm×1.5mm, then in this embodiment, the two end faces of the space are set to regular quadrangular prisms of (1.2mm)×(1.2mm) size. When rolling the tobacco embryo in step S2, the diameter of the rolled tobacco embryo is 2.5mm higher than the longest diameter of the cross section of the space. The reason for doing so is that, on the one hand, it ensures that the shaping device acts on the tobacco embryo to form a quadrangular prism. On the other hand, the larger the circumference of the rolled tobacco embryo, the longer the shaping time required, the more obvious the subsequent expansion, and at the same time, it will cause the middle position of the tobacco embryo to be too loose, affecting the inhalation resistance.

[0053] As a preferred embodiment of the above method, the time of pressurizing and shaping is 2 hours.

[0054] In order to keep the shaped tobacco embryo in a prism shape with clear edges and corners, the time for pressurizing and shaping is set to 2 hours in this embodiment.

[0055] After the square cigars prepared in this example were placed for 3 months, Figure 7 The second one from the left in the figure.

[0056] For other advantages of this embodiment, please refer to the general embodiment.

[0057] Comparative Example 1 A method for rolling a square cigar is provided, which is mainly different from Example 1 in that: the tobacco embryo shaping groove 101 in the mold base 1 is a rectangular parallelepiped groove, and the mold upper cover 2 is provided with a rectangular parallelepiped pressing groove 201 of the same size as the tobacco embryo shaping groove 101 in the mold base 1 (the pressing groove and the tobacco embryo shaping groove are symmetrically arranged with the covering plane of the mold upper cover 2 and the mold base 1 as the symmetry plane), and no pressing strip 3 is provided. Others are the same as Example 1.

[0058] The structural schematic diagram of the mold base 1 of this comparative example is as follows Figure 8 As shown, the structural schematic diagram of the mold cover 9 is as shown Figure 8 shown.

[0059] After the square cigars prepared in this comparative example were placed for 3 months, Figure 7 The first one from the left.

[0060] Depend on Figure 7 Comparison of the left and right cigarettes shows that in Example 1, the angle between the two sides is 90° to form the tobacco embryo shaping groove, and the pressing is performed by using a press strip. The tobacco embryo thus pressed has clear edges and corners, and can still maintain a clear-cut appearance after being placed for 3 months. Figure 7 It can be seen that the tobacco embryo of Example 1 has better uniformity, and the tobacco with good uniformity can be more uniform when burning, which is conducive to improving the sensory effect of smoking. Expansion and deformation of tobacco embryos are common problems in the cigar rolling process. The cigar core is a whole piece of dry tobacco leaves rolled into a bundle, then wrapped with a cigar wrapper, shaped, and then rolled with a cigar wrapper. The cigar rolling process is generally carried out in an environment of about 24°C and 60% relative humidity. After rolling, it needs to be aged. The aging environment is about 21°C and 65% relative humidity. In the cigar rolling process, the water content of the cigar core is about 14.5%, the cigar wrapper is about 20%, and the cigar wrapper is about 30%. The tobacco leaves have strong hygroscopicity. The rolling process will involve the balance between different types of tobacco leaves, as well as the decrease in overall moisture due to environmental influences, and it is necessary to ensure that the moisture content of the final cigar product is about 14%. During the tobacco embryo shaping process, including after the cigar wrapper is applied, the moisture content of the tobacco leaves will decrease compared to the rolling process, and the tobacco will expand as a whole. However, in Comparative Example 1, after being placed for 3 months, it expanded significantly, the "edges" of the quadrangular prism became less obvious, and the deformation was serious.

[0061] The raw materials and equipment used in the present invention, unless otherwise specified, are all commonly used raw materials and equipment in the art; the methods used in the present invention, unless otherwise specified, are all conventional methods in the art.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent transformation made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A method for rolling a square cigar, characterized in that: The following steps are involved: Step S1: Provide a shaper: The shaping device comprises a mold upper cover, a mold base and symmetrically arranged pressure strips, the mold base comprises a cigarette embryo shaping groove, and the cigarette embryo shaping groove is formed by two side surfaces with an angle of not less than 90 degrees; the mold upper cover comprises a pressing groove; the pressure strips are arranged in the pressing groove; when the cigarette embryo is pressed, the mold upper cover is covered with the mold base, and the symmetrically arranged pressure strips and the cigarette embryo shaping groove form a space for accommodating the cigarette embryo, and the space is a quadrangular prism; Step S2: rolling the tobacco embryo; Step S3: shaping the tobacco embryo, wherein the shaping device provided in step S1 is used for shaping, and the shaping method comprises the following operations: placing the tobacco embryo in the tobacco embryo shaping groove, placing the symmetrically arranged pressure strips in the pressing groove, covering the mold upper cover with the mold base, and applying pressure for shaping.

2. A method for rolling a square cigar according to claim 1, characterized in that: The mold upper cover is provided with a positioning protrusion, and the mold base is provided with a positioning cavity for accommodating the positioning protrusion.

3. A method for rolling a square cigar according to claim 2, characterized in that: The number of the positioning protrusions is at least 2.

4. A method for rolling a square cigar according to claim 3, characterized in that: The number of the positioning protrusions is 3, which are arranged on both sides of the pressing protrusion.

5. The method for rolling a square cigar according to claim 1, characterized in that: The cigarette embryo shaping groove is formed by two side surfaces with an angle of 90 degrees.

6. A method for rolling a square cigar according to claim 1, characterized in that: The cross-sectional dimension of the space is 0.2-0.4 mm smaller than the target dimension of the tobacco embryo.

7. A method for rolling a square cigar according to claim 1, characterized in that: The size of the cigarette embryo rolled from the cigarette embryo is 2-3 mm larger than the cross-sectional size of the space.

8. The method for rolling a square cigar according to claim 1, characterized in that: The time of pressurizing and shaping is not less than 1 hour.

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