A method for rolling "high-speed rail type" cigars

Abstract

This invention relates to the field of cigar production and processing technology, and discloses a method for rolling "high-speed rail" cigars. Existing cigar rolling methods require frequent turning to ensure even stress on the tobacco blank. Furthermore, insufficient turning or improper control of turning time can easily cause indentations. To solve the turning problem in the shaping process of cigar rolling, this invention designs the cigar into a "high-speed rail" shape through an irregular cigar form design. By providing a corresponding shaping device, the pressed cigar blank is formed into a "high-speed rail" shape. During the pressing process, the indentations are formed on the bottom edge of the "high-speed rail" shape. By cleverly utilizing the formation of these indentations, this rolling method can achieve even stress distribution without requiring multiple turnings.

Description

Technical Field

[0001] This invention relates to the field of cigar production and processing technology, and in particular to a method for rolling "high-speed rail type" cigars. Background Technology

[0002] Traditional cigars have a rounded head and flat tail. In recent years, the global cigar market has experienced steady growth, and as the market expands, consumers are demanding greater diversity in cigar products. This has led to the emergence of uniquely shaped cigars, such as the Solomon shape, torpedo shape, and serpent shape. These uniquely shaped cigar designs are one way to enhance the smoking experience for consumers.

[0003] A cigar consists of three parts: the filler, the binder, and the wrapper. The filler, made by separating tobacco leaves according to length and then hand-folding them, forms the center of the cigar. The binder is the outermost layer of tobacco leaves that shapes the filler. The wrapper is the outermost layer of tobacco leaves and is an important indicator of the cigar's appearance and quality. Cigar rolling involves combining the filler, binder, and wrapper to form a single cigar.

[0004] The current cigar-making process involves first hand-rolling the filler, then wrapping it in a binder to obtain the cigar blank. Next, the cigar blank is shaped and wrapped in a wrapper, completing the cigar rolling process. The shaping of the cigar blank is done using a shaping machine. The hand-rolled cigar blank is placed in the machine and pressed to achieve a specific size and shape, ensuring a smooth and uniform appearance. However, currently, the shaping process requires multiple flipping of the cigar blank to ensure a uniform appearance, but this flipping requires additional manual labor, resulting in low cigar production efficiency.

[0005] For example, patent application CN113679093A discloses a method for cigar rolling. The shaping process involves placing the cigar blank in a shaping mold and shaping it under external force for 2-3 days. During the shaping process, the mold is opened every 5 hours to flip the cigar blank. This patent has the following drawbacks: the cigars rolled using this method require flipping the cigar blank every 5 hours during shaping to ensure consistent pressure and a uniform appearance of the finished product. However, such frequent flipping increases labor costs and reduces production efficiency. Summary of the Invention

[0006] Existing cigar rolling methods require frequent flipping. To solve the above-mentioned technical problems, this invention provides a method for rolling "high-speed rail type" cigars.

[0007] The specific technical solution of this invention is as follows:

[0008] This invention provides a method for rolling a "high-speed rail type" cigar, comprising the following steps:

[0009] Step S1: Provide a cigar blank, the blank comprising a connected equal-diameter section and a uniformly contracted section, the equal-diameter section having the same diameter, and the uniformly contracted section having a diameter that decreases uniformly from one end connected to the equal-diameter section to the other end.

[0010] Step S2: Provide a shaping device for shaping the tobacco preform provided in step S1:

[0011] The shaping device includes a mold top cover and a mold base, and the mold top cover and mold base are closed to shape the tobacco blank;

[0012] The mold base includes a tobacco blank shaping groove, the bottom surface of which is an arc surface; the tobacco blank shaping groove includes a connected equal-diameter area and a uniform shrinkage area, which are respectively used to accommodate the equal-diameter section and the uniform shrinkage section of the tobacco blank; the equal-diameter area has the same groove width, the uniform shrinkage area has a groove width that decreases uniformly from one end connected to the equal-diameter area to the other end, and the uniform shrinkage area has a groove depth that decreases uniformly from one end connected to the equal-diameter area to the other end.

[0013] The mold cover includes a pressing plate, which is embedded in the tobacco blank shaping groove to press the tobacco blank;

[0014] Step S3: Place the tobacco blank provided in step S1 into the tobacco blank shaping groove provided in step S2, cover the mold top cover and mold base, and press and shape.

[0015] Existing cigar rolling methods require frequent tumbling to ensure even stress on the tobacco blank. Furthermore, insufficient tumbling or improper timing can easily cause indentations. To address the tumbling issue in the shaping process of cigar rolling, this invention employs a uniquely shaped cigar form, designing the cigar as a "high-speed rail" shape. By providing a corresponding shaping device, the pressed cigar blank is shaped into this "high-speed rail" form. During the pressing process, indentations are formed on the bottom edge of the "high-speed rail" shape. This clever use of indentation formation allows this rolling method to avoid the need for multiple tumbling steps, thus promoting even stress distribution.

[0016] Specifically, this invention rolls the tobacco blank into a shape including a constant-diameter section and a uniformly contracted section. Then, the tobacco blank shaping groove of the shaping device is correspondingly configured to include a constant-diameter area and a uniformly contracted area. The groove width of the constant-diameter area is the same, and the groove width of the uniformly contracted area decreases uniformly from one end connected to the constant-diameter area to the other. After pressing, the uniformly contracted area forms the "high-speed rail" head. Because the bottom surface of the tobacco blank shaping groove is curved, the uniformly narrow "high-speed rail" head (formed by the uniformly narrowing groove width from one end connected to the constant-diameter area to the other) can smoothly transition to the uniformly wide "high-speed rail" body. After the mold cover and mold base are closed, the pressing plate set on the mold cover is embedded in the tobacco blank shaping groove to press the tobacco blank. This embedding can be understood as the width of the pressing plate matching the groove width, fitting perfectly into the tobacco blank shaping groove. After pressing, marks are formed around the perimeter of the pressing plate on the tobacco blank surface; these marks cleverly become the bottom edges of the "high-speed rail" shape. After the tobacco blank expands and deforms, the bottom surface of the "high-speed rail" shaped tobacco blank is curved.

[0017] As a preferred embodiment of the above-mentioned rolling method, the lower surface of the pressing plate is an arc surface, and the arc height of the arc surface is 0.8~1.2 mm.

[0018] As a preferred embodiment of the above-mentioned rolling method, the upper cover of the mold is provided with a positioning protrusion, and the mold base is provided with a positioning cavity for accommodating the positioning protrusion.

[0019] As a preferred embodiment of the above-mentioned rolling method, the number of positioning protrusions is at least 2.

[0020] Further preferably, the number of positioning protrusions is 3, and they are disposed on both sides of the pressing protrusion.

[0021] As a preferred embodiment of the above-mentioned rolling method, the length of the uniform shrinkage zone is 1 / 4 to 1 / 2 of the length of the equal diameter zone.

[0022] Further optimization is that the length of the uniform shrinkage region is 1 / 3 of the length of the constant diameter region.

[0023] As a preferred embodiment of the above rolling method, the width of the tobacco blank shaping groove is 0.4 to 0.6 mm smaller than the maximum diameter of the tobacco blank.

[0024] As a preferred embodiment of the above rolling method, after the mold cover and mold base are closed, the distance from the lower surface of the pressing plate to the bottom surface of the tobacco blank shaping groove is 0.4 to 0.6 mm smaller than the maximum diameter of the tobacco blank.

[0025] As a preferred embodiment of the above rolling method, the pressing time is not less than 5 hours.

[0026] As a preferred embodiment of the above rolling method, after the mold cover and mold base are closed, the two ends of the tobacco blank shaping groove are connected to the air.

[0027] As a preferred embodiment of the above-mentioned rolling method, the rolling method further includes the following steps:

[0028] After pressing and shaping, the tail end of the tobacco blank is cut under the condition that the mold cover and the mold base are closed.

[0029] Compared with the prior art, the present invention has the following technical effects:

[0030] 1. Existing cigar rolling methods require frequent tumbling to ensure even stress on the tobacco blank. Furthermore, insufficient tumbling or improper timing can easily cause indentations. To address the tumbling issue in the shaping process of cigar rolling, this invention employs a unique cigar shape design, creating a "high-speed rail" shape. By providing a corresponding shaping device, the pressed cigar blank is formed into this "high-speed rail" shape. During the pressing process, indentations are formed on the bottom edge of the "high-speed rail" shape. This clever use of indentation formation allows this rolling method to avoid the need for multiple tumbling steps, thus promoting even stress distribution.

[0031] 2. This invention rolls the tobacco blank into a shape including a constant-diameter section and a uniformly contracted section. Correspondingly, the tobacco blank shaping groove of the shaping device is configured to include a constant-diameter area and a uniformly contracted area. The groove width of the constant-diameter area is the same, and the groove width of the uniformly contracted area decreases uniformly from one end connected to the constant-diameter area to the other. After pressing, the uniformly contracted area forms the "high-speed rail" head. Because the bottom surface of the tobacco blank shaping groove is curved, the uniformly narrow "high-speed rail" head (formed by the uniformly narrowing groove width from one end connected to the constant-diameter area to the other) can smoothly transition to the uniformly wide "high-speed rail" body. After the mold cover and mold base are closed, the pressing plate on the mold cover is embedded in the tobacco blank shaping groove to press the tobacco blank. After pressing, marks are formed around the perimeter of the pressing plate on the surface of the tobacco blank; these marks cleverly become the bottom edges of the "high-speed rail" shape. After the tobacco blank expands and deforms, the bottom surface of the "high-speed rail" shaped tobacco blank is curved, which avoids the finished cigar roll being too angular and improves the sensory experience of smoking. This invention transforms the disadvantage of "tobacco blank expansion" in actual production into an advantage, which can not only effectively solve the problem, but also reduce the additional steps of processing the appearance of the tobacco blank.

[0032] 3. By setting the length of the uniform shrinkage zone to 1 / 4 to 1 / 2 of the length of the constant diameter zone, the length of the diameter variation section of the finished "high-speed rail type" cigar after shaping and rolling is set to 1 / 4 to 1 / 2 of the length of the diameter constant section. The cigar gradually thins from thick to thin in the middle and rear section, which can effectively increase the smoke concentration, highlight the main aroma, give the cigarette more sensory changes, and improve the smoking quality. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a "high-speed rail type" cigar.

[0034] Figure 2 This is a schematic diagram of the structure of a tobacco embryo;

[0035] Figure 3 This is a schematic diagram of a physical tobacco embryo;

[0036] Figure 4 This is a schematic diagram of the structure after the mold top cover and mold base are closed.

[0037] Figure 5 This is a schematic diagram of a mold base structure;

[0038] Figure 6 This is a top view of the mold base structure.

[0039] Figure 7 This is a side view of the mold top cover and mold base after they are closed.

[0040] Figure 8 This is a side view structural diagram of the mold top cover;

[0041] Figure 9 A diagram illustrating the indentations created during cigar shaping.

[0042] The markings in the diagram are as follows: 1. "High-speed rail type" cigar, 2. Mold cover, 201. Pressing plate, 202. Positioning protrusion, 3. Mold base, 301. Cigarette blank shaping groove, 302. Positioning cavity, A. Equal diameter section, B. Uniform shrinkage section, C. Equal diameter area, D. Uniform shrinkage area. Detailed Implementation

[0043] The present invention will be further described below with reference to embodiments. Those skilled in the art will be able to implement the present invention based on these descriptions. Furthermore, the embodiments of the present invention described below are generally only some, not all, of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0044] General Implementation Examples

[0045] A method for rolling a "high-speed rail type" cigar 1 is provided, wherein the "high-speed rail type" cigar 1 is as follows: Figure 1 As shown, the rolling method includes the following steps S1 to S3:

[0046] Step S1: Provide cigar tobacco blanks, the tobacco blanks as follows Figure 2 As shown, it includes a connected equal-diameter section A and a uniformly contracted section B. The equal-diameter sections have the same diameter, and the diameter of the uniformly contracted section decreases uniformly from one end connected to the equal-diameter section to the other end. For example, this step provides a winding process as follows: Figure 3 The tobacco embryo shown.

[0047] Step S2: Provide a shaping device for shaping the tobacco preform provided in step S1, such as... Figures 4-8 As shown:

[0048] The shaping device includes a mold top cover 2 and a mold base 3. The mold top cover 2 and the mold base 3 are closed to shape the tobacco blank. Figure 4 The diagram shown is a structural schematic of the mold top cover and mold base after they are closed. Figure 7 This is a side view of the mold top cover and mold base after they are closed.

[0049] like Figure 5 As shown, the mold base 3 includes a tobacco blank shaping groove 301, the bottom surface of which is an arc surface; as Figure 6 As shown, the tobacco blank shaping groove includes a connected equal-diameter zone C and a uniform shrinkage zone D, which are used to accommodate the equal-diameter section A and the uniform shrinkage section B of the tobacco blank, respectively. The equal-diameter zones have the same groove width and the same groove depth. The groove width of the uniform shrinkage zone decreases uniformly from one end connected to the equal-diameter zone to the other end, and the groove depth of the uniform shrinkage zone decreases uniformly from one end connected to the equal-diameter zone to the other end.

[0050] The mold cover 2 includes a pressing plate 201, which is embedded in the tobacco blank shaping groove to press the tobacco blank. "Embedded" can be understood as the width of the pressing plate matching the width of the groove, allowing it to fit precisely into the tobacco blank shaping groove. Figure 8 As shown, Figure 8 This is a side view of the mold cover.

[0051] Step S3: Place the tobacco blank provided in step S1 into the tobacco blank shaping groove 301 provided in step S2, cover the mold cover 2 and the mold base 3, and press and shape it.

[0052] Existing cigar rolling methods require frequent turning to ensure even stress on the tobacco blanks. However, insufficient turning or improper timing of turning can easily cause indentations. For example, when researchers replicated Embodiment 1 of a cigar rolling method disclosed in patent application CN113679093A, they found that if the shaping process was extended to opening the mold and rotating the first cigar every 8 hours, the shaped cigar tobacco would exhibit indentations. Figure 9 The indentation shown.

[0053] To solve the problem of flipping during the shaping process of cigar rolling, this invention designs an irregularly shaped cigar form, making the cigar "high-speed rail type". By providing a corresponding shaping device, the pressed cigar blank is formed into a "high-speed rail type". During the pressing process, the indentation is formed on the bottom edge of the "high-speed rail" shape. By cleverly utilizing the formation of the indentation, this rolling method can avoid the need for multiple flipping and promote uniform force distribution.

[0054] Specifically, this invention rolls the tobacco blank into a shape including a constant-diameter section and a uniformly contracted section. Then, the shaping groove of the shaping device is correspondingly configured to include a constant-diameter area and a uniformly contracted area, with the constant-diameter area having the same groove width, and the uniformly contracted area having a groove width that decreases uniformly from one end connected to the constant-diameter area to the other. After pressing, the uniformly contracted area forms the "high-speed rail" head. Because the bottom surface of the shaping groove is curved, the uniformly narrowed "high-speed rail" head (formed by the uniformly contracted area's groove width decreasing uniformly from one end connected to the constant-diameter area to the other) can smoothly transition to the uniformly wide "high-speed rail" body. After the mold cover and mold base are closed, the pressing plate on the mold cover is embedded in the shaping groove to press the tobacco blank. After pressing, marks are formed around the perimeter of the pressing plate on the surface of the tobacco blank; these marks cleverly become the bottom edges of the "high-speed rail" shape. After the tobacco blank expands and deforms, the bottom surface of the "high-speed rail" shaped tobacco blank is curved, which avoids the finished cigar roll being too angular and improves the sensory experience of smoking.

[0055] Expansion and deformation of the tobacco filler is a common problem in cigar rolling. The filler is a bundle of dry tobacco leaves rolled into a tube, then wrapped in a binder, shaped, and finally coated with a wrapper. Cigar rolling is generally carried out at around 24°C and 60% relative humidity. After rolling, the cigar undergoes aging, which takes place at around 21°C and 65% relative humidity. In cigar rolling, the filler has a moisture content of approximately 14.5%, the binder approximately 20%, and the wrapper approximately 30%. Tobacco leaves are highly hygroscopic, and the rolling process involves balancing different types of tobacco leaves and managing the overall moisture content due to environmental factors. The final cigar must maintain a moisture content of around 14%. During the shaping process, including after wrapping, the moisture content of the tobacco leaves decreases compared to when rolling, causing the cigar to expand overall. During the implementation of this method, it was found that the expansion and deformation of the tobacco blank has a significant impact on the "high-speed rail type" cigar with edges of the present invention. After deformation, the bottom edge of the "high-speed rail type" will be severely stretched due to expansion, making the deformation problem obvious.

[0056] To address the expansion issue in cigar rolling, as a preferred method, the lower surface of the pressing plate is curved, with an arc height of 0.8-1.2 mm. The arc height should be understood as the distance between the apex of the arc and the lines connecting the two endpoints of the arc as shown in the cross-section of the curved surface. Figure 7 The arc height h in the middle.

[0057] As a preferred embodiment of the above-mentioned rolling method, the upper cover 2 of the mold is provided with a positioning protrusion 202, and the mold base 3 is provided with a positioning cavity 302 for accommodating the positioning protrusion.

[0058] As a preferred embodiment of the above-mentioned rolling method, the number of positioning protrusions is at least 2.

[0059] After the mold cover and mold base are closed, the positioning protrusion 202 is embedded in the positioning cavity 302. Due to the positioning effect of the positioning protrusion and the positioning cavity, the pressing plate on the mold cover is not easy to move during the pressing and shaping of the tobacco blank, which is conducive to the uniform pressing force.

[0060] Further preferably, the number of positioning protrusions is 3, and they are disposed on both sides of the pressing protrusion.

[0061] The number of positioning protrusions should not be too many. Too many protrusions will reduce the efficiency of inserting them when closing the lid and removing them when opening the lid after shaping. If the number of positioning protrusions is too few, the pressing stability will be insufficient and the pressing force will be uneven.

[0062] As a preferred embodiment of the above-mentioned rolling method, the length of the uniform shrinkage zone is 1 / 4 to 1 / 2 of the length of the equal diameter zone.

[0063] By setting the length of the uniform shrinkage zone to 1 / 4 to 1 / 2 of the length of the constant diameter zone, the length of the diameter variation section of the finished "high-speed rail-shaped" cigar after shaping and rolling is set to 1 / 4 to 1 / 2 of the length of the diameter constant section. The cigar gradually thins from thick to thin in the middle and rear section, tightening evenly. This effectively increases the smoke concentration, highlights the main aroma, gives the cigarette more sensory variations, and improves the smoking quality.

[0064] Further optimization is that the length of the uniform shrinkage region is 1 / 3 of the length of the constant diameter region.

[0065] As a preferred embodiment of the above-mentioned rolling method, the width of the shaping groove of the tobacco blank is 0.4 to 0.6 mm smaller than the maximum diameter of the tobacco blank. This dimension ensures that the density of the tobacco blank after pressing is appropriate, and the suction resistance is suitable. At the same time, the expansion deformation is small.

[0066] As a preferred embodiment of the above rolling method, after the mold top cover and mold base are closed, the distance from the lower surface of the pressing plate to the bottom surface of the tobacco blank shaping groove is 0.4 to 0.6 mm smaller than the maximum diameter of the tobacco blank. This dimension ensures that the tobacco blank has suitable density and draw resistance after pressing, while minimizing expansion and deformation.

[0067] As a preferred embodiment of the above rolling method, the pressing time is not less than 5 hours.

[0068] As a preferred embodiment of the above rolling method, after the mold cover and mold base are closed, the two ends of the tobacco blank shaping groove are connected to the air.

[0069] As a preferred embodiment of the above-mentioned rolling method, the rolling method further includes the following steps:

[0070] After pressing and shaping, the tail end of the tobacco blank is cut under the condition that the mold cover and the mold base are closed.

[0071] The tail section of the tobacco blank is cut and adjusted to be carried out during the shaping process, which ensures that the tail section is fully filled and avoids deformation of the tail section caused by the cutting process.

[0072] Applying the wrapper is the final step in cigarette rolling. After the tobacco blank is shaped, in this embodiment, the starting position for rolling the wrapper tobacco leaf can be set to the bottom plane of the cigarette.

[0073] The shape of a conventional, symmetrical cigar stick does not affect the position of the wrapper. In this embodiment, the stick is an irregularly stacked structure, and the position of the wrapper is fixed at the bottom plane of the stick because this position has the largest contact area between the stick and the wrapper, which is beneficial for the wrapper and tobacco leaves to be better stressed and stretched during the wrapping process.

[0074] Compared with the prior art, this embodiment has the following technical effects:

[0075] (1) Existing cigar rolling methods require frequent turning to ensure even stress on the tobacco blank. In addition, insufficient turning or improper control of turning time can easily cause indentations. In order to solve the turning problem in the shaping process of cigar rolling, this invention designs the cigar into a "high-speed rail" shape through an irregular cigar shape design, and provides a corresponding shaping device to make the pressed cigar tobacco blank into a "high-speed rail" shape. Then, during the pressing process, the indentation is formed on the bottom edge of the "high-speed rail" shape. By cleverly utilizing the formation of indentations, this rolling method can avoid the need for multiple turnings to promote even stress.

[0076] (2) In this embodiment, the tobacco blank is rolled into a shape including a constant diameter section and a uniformly shrunk section. Then, the tobacco blank shaping groove of the shaping device is set accordingly to include a constant diameter area and a uniformly shrunk area. The groove width of the constant diameter area is the same, and the groove width of the uniformly shrunk area decreases uniformly from one end connected to the constant diameter area to the other end. After pressing, the uniformly shrunk area is pressed to form the head of the "high-speed rail" shape. Since the bottom surface of the tobacco blank shaping groove is an arc surface, the head of the "high-speed rail" shape with a uniformly decreasing width (the groove width of the uniformly shrunk area is formed by a uniform decrease from one end connected to the constant diameter area to the other end) can smoothly transition to the body of the "high-speed rail" shape with a uniform width. After the mold cover and the mold base are closed, the pressing plate set on the mold cover is embedded in the tobacco blank shaping groove to press the tobacco blank. After pressing, the periphery of the pressing plate will form marks on the surface of the tobacco blank. These marks cleverly become the bottom edge of the "high-speed rail" shape. After the tobacco blank expands and deforms, the bottom surface of the "high-speed rail" shaped tobacco blank is curved, which avoids the finished cigar roll being too angular and improves the sensory experience of smoking. This invention transforms the disadvantage of "tobacco blank expansion" in actual production into an advantage, which can not only effectively solve the problem, but also reduce the additional steps of processing the appearance of the tobacco blank.

[0077] (3) In this embodiment, by setting the length of the uniform shrinkage zone to 1 / 4 to 1 / 2 of the length of the equal diameter zone, the length of the diameter variation section of the finished "high-speed rail type" cigar after shaping and rolling is set to 1 / 4 to 1 / 2 of the length of the diameter constant section. The cigar gradually becomes thinner and evenly tightened in the middle and rear section, which can effectively increase the smoke concentration, highlight the main aroma, give the cigarette more sensory changes, and improve the smoking quality.

[0078] Example 1

[0079] A method for rolling a "high-speed rail type" cigar is provided, including the following steps S1 to S5:

[0080] Step S1: Provide cigar tobacco blanks, the tobacco blanks as follows Figure 2 As shown, it includes a connected equal-diameter section A and a uniformly contracted section B. The equal-diameter sections have the same diameter, and the diameter of the uniformly contracted section decreases uniformly from one end connected to the equal-diameter section to the other end.

[0081] Step S2: Provide a shaping device for shaping the tobacco preform provided in step S1, such as... Figures 4-8 As shown:

[0082] The shaping device includes a mold top cover 2 and a mold base 3. The mold top cover 2 and the mold base 3 are closed to shape the tobacco blank. Figure 4 The diagram shown is a structural schematic of the mold top cover and mold base after they are closed. Figure 7 This is a side view of the mold top cover and mold base after they are closed.

[0083] like Figure 5 As shown, the mold base 3 includes a tobacco blank shaping groove 301, the bottom surface of which is an arc surface; as Figure 6 As shown, the tobacco curd shaping groove includes a connected equal-diameter zone C and a uniformly shrinking zone D, which are used to accommodate the equal-diameter section A and the uniformly shrinking section B of the tobacco curd, respectively. The equal-diameter zones have the same groove width, and the groove width of the tobacco curd shaping groove is 0.4~0.6 mm smaller than the maximum diameter of the tobacco curd. The equal-diameter zones have the same groove depth. The groove width and depth of the uniformly shrinking zone decrease uniformly from one end connected to the equal-diameter zone to the other end. The length of the uniformly shrinking zone is 1 / 3 of the length of the equal-diameter zone, that is, the length of the uniformly shrinking section is 1 / 3 of the length of the equal-diameter section.

[0084] The mold cover 2 includes a pressing plate 201, the lower surface of which is set as an arc surface, the arc height of which is 0.8~1.2 mm, i.e. Figure 7The arc height h is 0.8~1.2 mm. The pressing plate is embedded in the tobacco blank shaping groove to press the tobacco blank. "Embedding" means that the width of the pressing plate matches the width of the groove, allowing it to fit perfectly into the tobacco blank shaping groove. After the mold top cover and mold base are closed, the distance from the lower surface of the pressing plate to the bottom surface of the tobacco blank shaping groove is 0.4~0.6 mm smaller than the maximum diameter of the tobacco blank. Simultaneously, after the mold top cover and mold base are closed, both ends of the tobacco blank shaping groove are connected to air.

[0085] The mold cover 2 is provided with a positioning protrusion 202, and the mold base 3 is provided with a positioning cavity 302 for accommodating the positioning protrusion. The number of positioning protrusions is 3, and they are located on both sides of the pressing protrusion.

[0086] Step S3: Place the tobacco blank provided in step S1 into the tobacco blank shaping groove 301 provided in step S2, cover the mold cover 2 and the mold base 3, and press for 8 hours to shape.

[0087] Step S4: After pressing and shaping, with the mold cover and mold base closed, cut the tail of the tobacco blank.

[0088] Step S5: Fix the starting position of the wrapper tobacco leaf at the bottom plane of the cigarette, roll the wrapper, and finally obtain a "high-speed rail type" cigar.

[0089] Example 2

[0090] The main difference between this embodiment and Embodiment 1 is that the length of the uniform shrinkage region is 1 / 4 of the length of the constant diameter region. Everything else is the same as in Embodiment 1.

[0091] Example 3

[0092] The main difference between this embodiment and Embodiment 1 is that the length of the uniform shrinkage region is half the length of the constant diameter region. Everything else is the same as in Embodiment 1.

[0093] Comparative Example 1

[0094] The main difference between this comparative example and Example 1 is that the length of the uniform shrinkage region is 1 / 5 of the length of the constant diameter region. Everything else is the same as in Example 1.

[0095] Comparative Example 2

[0096] The main difference between this comparative example and Example 1 is that the length of the uniform shrinkage region is 2 / 3 of the length of the constant diameter region. Everything else is the same as in Example 1.

[0097] Sensory evaluation

[0098] The cigars obtained in Examples 1-3 and Comparative Examples 1-2 were subjected to sensory quality evaluation. Three batches of samples were randomly selected for each evaluation, and five judges evaluated them. The results are shown in Table 1.

[0099] Table 1

[0100] sample Sensory evaluation Example 1 The fragrance is pleasant, with ample aroma, medium to strong strength, and a bright and rich aftertaste. Example 2 The fragrance is pleasant, with ample aroma, medium to strong strength, and a bright and rich aftertaste. Example 3 The fragrance is of good quality, with a rich and powerful aroma, and a bright and complex aftertaste. Comparative Example 1 The fragrance is pleasant, with a good amount of aroma, moderate strength, and a slightly good aftertaste. Comparative Example 2 The fragrance is pleasant, with a good amount of aroma, moderate strength, and a slightly good aftertaste.

[0101] As shown in Table 1, this invention sets the length of the diameter-changing section of the finished "high-speed rail type" cigar to 1 / 4 to 1 / 2 of the length of the diameter-unchanging section. The cigar tapers from thick to thin in the middle and rear section (the larger diameter end is the ignition end, and the smaller diameter end is the drawing end), which is uniformly tightened. This can effectively increase the smoke concentration and strength, improve the sensory experience of aroma, highlight the main aroma, give the cigar more sensory variations, and improve the drawing quality.

[0102] Unless otherwise specified, the raw materials and equipment used in this invention are all commonly used in the field; unless otherwise specified, the methods used in this invention are all conventional methods in the field.

[0103] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A method for rolling a "high-speed rail type" cigar, characterized in that: Includes the following steps: Step S1: Provide a cigar blank, the blank comprising a connected equal-diameter section and a uniformly contracted section, the equal-diameter section having the same diameter, and the uniformly contracted section having a diameter that decreases uniformly from one end connected to the equal-diameter section to the other end. Step S2: Provide a shaping device for shaping the tobacco preform provided in step S1: The shaping device includes a mold cover and a mold base. The mold base includes a tobacco blank shaping groove, the bottom surface of which is an arc surface. The tobacco blank shaping groove includes a connected equal-diameter area and a uniform shrinkage area, which are used to accommodate the equal-diameter section and the uniform shrinkage section of the tobacco blank, respectively. The groove width of the uniform shrinkage area decreases uniformly from one end connected to the equal-diameter area to the other end, and the groove depth of the uniform shrinkage area decreases uniformly from one end connected to the equal-diameter area to the other end. The mold cover includes a pressing plate, which is embedded in the tobacco blank shaping groove to press the tobacco blank; Step S3: Place the tobacco blank provided in step S1 into the tobacco blank shaping groove provided in step S2, cover the mold cover and mold base, and press and shape it. in: The lower surface of the pressing plate is an arc surface with an arc height of 0.8~1.2 mm and the arc surface is a convex surface.

2. The method for rolling a "high-speed rail type" cigar as described in claim 1, characterized in that: The mold cover is provided with a positioning protrusion, and the mold base is provided with a positioning cavity for accommodating the positioning protrusion.

3. The method for rolling a "high-speed rail type" cigar as described in claim 2, characterized in that: The number of the positioning protrusions is at least 2.

4. The method for rolling a "high-speed rail type" cigar as described in claim 3, characterized in that: The number of positioning protrusions is 3, and they are arranged on both sides of the pressing protrusion.

5. The method for rolling a "high-speed rail type" cigar as described in claim 1, characterized in that: The length of the uniform shrinkage zone is 1 / 4 to 1 / 2 of the length of the constant diameter zone.

6. The method for rolling a "high-speed rail type" cigar as described in claim 1, characterized in that: The width of the shaping groove of the tobacco blank is 0.4 to 0.6 mm smaller than the maximum diameter of the tobacco blank; After the mold cover and mold base are closed, the distance from the lower surface of the pressing plate to the bottom surface of the tobacco blank shaping groove is 0.4 to 0.6 mm smaller than the maximum diameter of the tobacco blank.

7. The method for rolling a "high-speed rail type" cigar as described in claim 1, characterized in that: The pressing time is no less than 5 hours.

8. The method for rolling a "high-speed rail type" cigar as described in claim 1, characterized in that: After the mold cover and mold base are closed, the two ends of the tobacco blank shaping groove are connected to the air.

9. The method for rolling a "high-speed rail type" cigar as described in claim 8, characterized in that: The rolling method further includes the following steps: After pressing and shaping, the tail end of the tobacco blank is cut under the condition that the mold cover and the mold base are closed.

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