Rapid shaping method and pressure shaping device for inner blank of cigar

Abstract

The invention relates to the technical field of cigars, in particular to a rapid shaping method and a pressure shaping device for inner blanks of cigars. The shaping method comprises the following steps: S1, placing a rolled inner blank of the cigar in a pressure shaping device, and pressing and shaping; s2, the cigarette inner blank in the pressure shaping device is subjected to steam treatment, the steam treatment temperature ranges from 40 DEG C to 60 DEG C, and the duration time ranges from 5 min to 10 min; s3, cooling the cigarette inner blank in the pressure shaping device until the temperature of the cigarette inner blank is 20-25 DEG C; and S4, the cigarette inner blank continues to be kept in the pressure shaping device for 50-60 min, and the shaped cigarette inner blank is obtained. Low-temperature steam and cooling are used for assisting in pressure shaping of the cigar inner blank, so that the shape of the cigar inner blank can be effectively adjusted and solidified within a short time, the shaping time is only 1-2 h, and the effects of shortening the shaping time and improving the shaping efficiency are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cigars, and in particular to a method for quickly shaping a cigar endometre and a pressure shaping device. Background Art

[0002] During the cigar production process, handmade cigars must go through the process of rolling the inner blank to be shaped before the wrapper can be put on. The shaping of the inner blank has a direct impact on the quality control of the subsequent wrapper process, the size, appearance and internal quality of the finished cigars.

[0003] During the shaping process of the cigar tobacco embryo, external continuous pressure is required to keep the cigar tobacco embryo unchanged under a certain pressure. At present, the cigar tobacco embryo is mainly shaped by a shaping machine under natural time conditions, and a long shaping process is required to meet the quality requirements of cigar products. For example, the journal document "The Effect of Shaping Time of Handmade Whole Leaf Cigars under Certain Environmental Temperature and Humidity on the Appearance Quality of Cigarettes" points out that "the pressing time of handmade whole leaf cigars is preferably 20 to 24 hours. Too short will have a greater impact on the appearance quality of the cigarettes, causing the surface of the tobacco leaves to be rough and the appearance quality to be poor", "the pressing environment of handmade whole leaf cigars is controlled at a temperature of 20 to 25°C and a relative humidity of 60% to 65%, which is more suitable, and the qualified rate of the appearance indicators of the cigarettes is also the highest". It can be seen that the current shaping method is time-consuming.

[0004] In the prior art, there is little research on reducing the pressure shaping time of cigar tobacco embryos and improving the shaping efficiency. How to shorten the shaping time of cigar tobacco embryos and ensure the quality of cigar tobacco embryos is a problem that people in this field need to solve. Summary of the invention

[0005] The present invention aims to solve the above-mentioned problem and provides a method for quickly shaping the inner embryo of a cigar and a pressure shaping device.

[0006] The technical solution to the problem of the present invention is, firstly, to provide a method for quickly shaping the inner embryo of a cigar, comprising the following steps: S1. Place the rolled cigar endoplasm in a pressure shaping device and press it to shape; S2. steaming the tobacco embryos in the pressure shaping device at a temperature of 40 to 60° C. for a duration of 5 to 10 minutes; S3. Cooling the tobacco embryo in the pressure shaping device until the temperature of the tobacco embryo is 20-25°C; S4. The cigarette endostearm is kept in the pressure shaping device for 50 to 60 minutes to obtain the shaped cigarette endostearm.

[0007] In this application, steam heating is used for the first time to assist the pressure shaping of the cigar tobacco embryo. Under pressure, the steam can penetrate deeper into the interior of the tobacco, ensuring that the tobacco leaves are fully heated and softened, so that their shape can be effectively adjusted in a short time. Then, still under pressure, the moisture content of the tobacco embryo is dried to a qualified level in a short time, so that the tobacco embryo is shaped. This shaping method does not affect the quality of cigars, can effectively reduce the odor and irritation of cigars, shorten the shaping time, and improve the rolling production efficiency.

[0008] In step S2, the steam treatment temperature can be 40°C, 41°C, 42°C, 43°C, 44°C, 45°C, 46°C, 47°C, 48°C, 49°C, 50°C, 51°C, 52°C, 53°C, 54°C, 55°C, 56°C, 57°C, 58°C, 59°C, 60°C, preferably 50°C. This relatively low temperature steam can be obtained by controlling the pressure of a steam generator, or by ultrasonically vibrating water with a temperature. The steam treatment duration can be 5min, 6min, 7min, 8min, 9min, 10min, preferably 8min.

[0009] As a preferred embodiment of the present invention, step S2 comprises the following steps: S21. Steam treatment at a pressure of 2.2-2.8 MPa for 30-60 seconds; S22. After reducing the pressure by 0.01-0.1 MPa, the tobacco embryo is turned over and steamed for 1-5 seconds; S23. Repeat steps S21 and S22.

[0010] During the steam treatment process, the pressure is reduced to a certain extent. First, it is convenient for the flipping operation of the cigarette embryo and avoids damage to the shape of the cigarette embryo due to excessive friction during the flipping operation; the flipping operation is to make other parts of the cigarette embryo get direct pressure and direct contact with steam when the cigarette embryo is subsequently subjected to step S21. Through continuous flipping, each part of the cigarette embryo can get direct pressure and direct contact with steam, so that each part of the cigarette embryo is evenly subjected to pressure and steam to ensure the overall shaping effect of the cigarette embryo. Second, after reducing the pressure, the tobacco leaves that were originally compressed by a higher pressure can be slightly expanded and released, which helps the tobacco leaves maintain appropriate elasticity. At the same time, the distribution of the tobacco leaves in the cigarette embryo is adjusted to make it more evenly distributed, avoiding local over-tightness or over-looseness, and ensuring the shaping effect and the appearance quality of the cigarette embryo. Third, steam treatment of the cigarette endostem under lower pressure will accelerate the diffusion rate of steam compared to steam treatment of the cigarette endostem under higher pressure. The steam quickly passes through the cigarette endostem, causing the cigarette endostem to be heated more and moistened less, thereby achieving thermal curing effect on the cigarette endostem and improving the shaping effect.

[0011] In step S21, the pressure can be 2.2 MPa, 2.3 MPa, 2.4 MPa, 2.5 MPa, 2.6 MPa, 2.7 MPa, 2.8 MPa, preferably 2.5 MPa; the steam treatment time can be 30 s, 35 s, 40 s, 45 s, 50 s, 55 s, 60 s, preferably 45 s.

[0012] In step S21, as a preferred embodiment of the present invention, steam treatment is performed at a pressure of 2.2 to 2.8 MPa for 27 to 52 seconds and then allowed to stand for 3 to 8 seconds.

[0013] Steam treatment can be continuous or intermittent, and this intermittent treatment method is preferred. Short-term standing can play a curing role in shaping, allowing the cigarette to fully adapt to the new shape and size, and improve the stability and durability of the shaping. In terms of the quality of the cigarette embryo, the steam can be given time to be evenly distributed in the cigarette embryo to avoid local overheating and overhumidity in the cigarette embryo, and to avoid stress caused by temperature and humidity differences that lead to cracking of the cigarette; at the same time, the chemical components in the cigarette embryo that are easily volatilized by steam and heat can be re-balanced in the cigarette embryo to ensure the quality of the cigarette.

[0014] In step S22, the pressure can be reduced by 0.01MPa, 0.02MPa, 0.03MPa, 0.04MPa, 0.05MPa, 0.06MPa, 0.07MPa, 0.08MPa, 0.09MPa, 0.1MPa, preferably 0.05MPa; the steam treatment time can be 1s, 2s, 3s, 4s, 5s, preferably 3s.

[0015] In step S3, the temperature of the cooled tobacco embryo can be 20°C, 21°C, 22°C, 23°C, 24°C, 25°C, preferably 24°C.

[0016] As a preferred embodiment of the present invention, step S3 includes the following steps: S31. Air-cooling treatment at 2.2-2.8 MPa pressure for 20-30 seconds; S32. After reducing the pressure by 0.01-0.1 MPa, the cigarette embryo is turned over and air-cooled for 1-5 seconds; S33. Repeat steps S31 and S32 until the temperature of the tobacco embryo reaches 20-25°C.

[0017] First, similar to step S2, the whole endostem of the cigarette is cooled and shaped uniformly by flipping, and flipping is assisted by reducing the pressure. Second, the endostem of the cigarette that is subjected to higher pressure is first air-cooled. The tobacco leaves in the endostem of the cigarette are tightly combined, so that the cold air stays in the endostem of the cigarette for a long time, and heat transfer is easier between the tobacco leaves, thereby ensuring that all parts of the endostem of the cigarette are evenly cooled, reducing deformation or cracks caused by temperature gradients, and improving the strength of the endostem of the cigarette. Afterwards, the endostem of the cigarette that is subjected to lower pressure is air-cooled. There are pores between the tobacco leaves. The pores help the cold air to quickly pass through the endostem of the cigarette, take away excess moisture in the endostem of the cigarette, and reduce the influence of moisture on the shaping effect.

[0018] In step S31, the air cooling treatment time can be 20s, 21s, 22s, 23s, 24s, 25s, 26s, 27s, 28s, 29s, 30s, preferably 25s.

[0019] In step S32, the air cooling treatment time can be 1s, 2s, 3s, 4s, 5s, preferably 3s.

[0020] In step S4, the holding time can be 50 min, 51 min, 52 min, 53 min, 54 min, 55 min, 56 min, 57 min, 58 min, 59 min, 60 min, preferably 55 min.

[0021] Secondly, another object of the present invention is to provide a pressure molding device, including a base, a pressing plate, and a lifting structure for driving the pressing plate to move back and forth relative to the base; also including a molding mold, the molding mold including a lower mold arranged on the base, and an upper mold arranged on the pressing plate, and a molding cavity is formed in the molding mold; also including a steam structure for introducing steam into the molding cavity, and a cooling structure for introducing cold air into the molding cavity.

[0022] As a preferred embodiment of the present invention, the base includes an introduction cavity connected to the steam structure and the cooling structure respectively, and the lower mold is provided with a lower through hole connected to the introduction cavity.

[0023] As a preferred embodiment of the present invention, the base is provided with a first mounting groove, the first mounting groove is provided with an introduction hole connected to the introduction cavity, the lower mold is rotatably arranged in the first mounting groove, and the lower through hole can be connected to the introduction hole; the pressure plate is provided with a second mounting groove, the upper mold is rotatably arranged in the second mounting groove, and the upper mold is provided with an upper through hole; the upper mold and the lower mold are detachably connected; and it also includes a rotating part for driving the shaping mold to rotate.

[0024] As a preferred embodiment of the present invention, an elastic cloth is provided in the second mounting groove, an air cavity is formed between the bottom of the second mounting groove and the elastic cloth, and the air cavity is connected to a gas piece for inflation and deflation; a mounting portion for accommodating the upper mold is formed between the elastic cloth and the notch of the second mounting groove.

[0025] As a preferred embodiment of the present invention, the upper mold is in a superior arc shape, and the lower mold is in a inferior arc shape.

[0026] As a preferred embodiment of the present invention, a pressure sensor and a temperature sensor are provided in the upper mold and / or the lower mold.

[0027] Beneficial effects of the present invention: 1. The present application provides a method for quickly shaping the endostem of a cigar stick, which utilizes low-temperature steam and cooling to assist in the pressure shaping of the endostem of a cigar stick, so as to effectively adjust and solidify the shape of the endostem of the cigar stick in a short time. The shaping time only takes 1 to 2 hours, thereby achieving the effect of shortening the shaping time and improving the shaping efficiency.

[0028] 2. In some embodiments, higher shaping pressure and lower shaping pressure are alternately assisted by steam or cold air to process the tobacco embryo, so as to further improve the shaping effect.

[0029] 3. The present application provides a pressure shaping device for carrying out the above method, which achieves the effect of quickly shaping the cigarette embryo by introducing steam or cold air while compressing it.

[0030] 4. In some embodiments, elastic fabric and an air cavity are provided, and the pressure is adjusted within a relatively small range by inflating and deflating air into the air cavity, thereby avoiding the operational inconvenience and inaccurate pressure adjustment caused by frequently controlling the lifting structure to adjust the pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of a pressure shaping device embodiment 1; Figure 2 It is a schematic structural diagram of a pressure shaping device embodiment 2; Figure 3 is a front view of the base, the pressing plate and the shaping mold in Example 2; Figure 4 is an exploded schematic diagram of the base, the pressing plate and the shaping mold in Example 2; Figure 5 is a side view of the base, the pressing plate and the shaping die in Example 2; In the figure: base 1, inlet cavity 1a, first mounting groove 11, pressing plate 2, second mounting groove 21, air cavity 211, mounting portion 212, elastic cloth 22, air part 23, shaping mold 3, lower mold 31, lower through hole 311, upper mold 32, upper through hole 321, rotating part 33, steam structure 4, cooling structure 5. DETAILED DESCRIPTION

[0032] The following are specific implementations of the present invention, and in conjunction with the accompanying drawings, the technical solution of the present invention is further described, but the present invention is not limited to these embodiments.

[0033] Example 1 A pressure setting device, such as Figure 1 As shown, firstly, it includes a base 1, a pressing plate 2, and a lifting structure for driving the pressing plate 2 to move back and forth relative to the base 1. Generally, in order to ensure the accuracy of the moving direction of the pressing plate 2, a fixing seat is also set on the base 1 through the support legs, and the fixing seat is provided with a guide hole, and a guide column is provided in the guide hole; the pressing plate 2 is located between the fixing seat and the base 1, and the pressing plate 2 is connected to the guide column, and the moving direction of the pressing plate 2 is ensured by the limiting effect of the fixing seat guide hole on the guide column.

[0034] The selection of lifting structure is not limited. A hydraulic cylinder or a pneumatic cylinder can be used, and the end of the guide column located on the upper side of the fixed seat can be directly connected to the piston rod of the hydraulic cylinder or the pneumatic cylinder. A screw lifting structure can also be used: in some embodiments, the guide hole can be set as a threaded hole, and the guide column can be set as a screw threadedly connected to the threaded hole, and the pressing plate 2 is driven to rotate downward or upward by the screw. In other embodiments, the guide hole is a through hole with a smooth inner wall, and the guide column is a screw; at the same time, a knob is provided on the fixed seat through a rotating bearing, and the knob is provided with an internal thread and is threadedly connected to the guide column; the support foot is provided with a slide groove in the vertical direction, and the pressing plate 2 is provided with a slider inserted into the slide groove and slides; this structure is basically the same as the ball screw structure. When the knob is turned, there is a tendency to drive the guide column and the pressing plate 2 to rotate, but because the slider of the pressing plate 2 is restricted in the slide groove, the rotation of the pressing plate 2 and the guide column is restricted. Therefore, under the action of the threaded connection, the guide column can move up and down, thereby driving the pressing plate 2 to move up and down.

[0035] Since the cigar tobacco embryo needs to be shaped into a certain shape, usually a cylindrical shape, a cylindrical shaping mold 3 is also included, and the shaping mold 3 is divided into two parts, that is, the shaping mold 3 includes a lower mold 31 arranged on the base 1, and an upper mold 32 arranged on the pressing plate 2. The lifting structure drives the pressing plate 2 to move downward so that the upper mold 32 contacts the lower mold 31 and forms an integral shaping mold 3, and a shaping cavity is formed in the shaping mold 3. In addition, a pressure sensor is provided in the upper mold 32 or / and the lower mold 31 to detect the shaping pressure, and a temperature sensor is provided to detect the temperature of the tobacco embryo.

[0036] In order to accelerate shaping, the present application also includes a steam structure 4 for introducing steam into the shaping cavity, and a cooling structure 5 for introducing cold air into the shaping cavity. The steam structure 4 can be a steam generator with controllable steam temperature in the prior art, and the cooling structure 5 can be a fan in the prior art. In order to introduce the steam generated by the steam structure 4 or the cold air generated by the cooling structure 5 into the shaping cavity, a plurality of lower through holes 311 can be provided on the lower mold 31, and the steam outlet of the steam structure 4 and the air cooling outlet of the cooling structure 5 can be connected to these lower through holes 311 respectively.

[0037] A method for quickly shaping cigar tobacco endometres using the pressure shaping device comprises the following steps: S1. Place the rolled cigar endometrium in the lower mold 31 of the pressure shaping device, start the lifting structure to drive the pressing plate 2 and the upper mold 32 to move downward, so that the upper mold 32 covers the endometrium of the cigar and presses it tightly until the pressure of the pressure sensor reaches 2.5MPa.

[0038] S2. Open the steam structure 4 and steam the cigarette embryos in the pressure shaping device at a temperature of 50° C. for 7.5 minutes.

[0039] S3. Close the steam structure 4 and open the cooling structure 5 to cool the tobacco embryos in the pressure shaping device. After 5 minutes, the temperature of the tobacco embryos drops to 24° C. and the cooling structure 5 is closed.

[0040] S4. Continue to maintain the pressure of 2.5 MPa for 55 minutes, then start the lifting structure to drive the pressing plate 2 and the upper mold 32 to move upward to obtain the shaped cigarette embryo. At this time, the moisture content of the cigarette embryo is 12.5%.

[0041] Example 2 A pressure shaping device, which is basically the same as the pressure shaping device of Example 1, and the difference is mainly that: like Figure 3 and Figure 4 As shown, the shaping mold 3 is divided into two parts, a superior arc (i.e., an arc greater than half a circle) and a inferior arc (i.e., an arc less than half a circle). The upper mold 32 is a superior arc, and the lower mold 31 is an inferior arc. The upper mold 32 and the lower mold 31 are detachably connected, for example, a card slot is provided at the top of the lower mold 31, and a card block is provided at the bottom of the upper mold 32, and the card block can be inserted into the card slot; further, the card slot and the card block can also be controlled to be connected through an electromagnet, for example, an electromagnet is provided in the card block, and an iron sheet is provided on the inner wall of the card slot. When the upper mold 32 and the lower mold 31 are connected together to form a complete shaping mold 3, the center of the shaping mold 3 is located on the upper mold 32, as shown in FIG. Figure 5As shown, a connecting rod is provided at the center of the shaping mold 3 and is connected to a rotating member 33, such as a motor. Therefore, when the upper mold 32 and the lower mold 31 are connected together to form a complete shaping mold 3, the rotating member 33 can drive the shaping mold 3 to rotate, thereby driving the cigarette endoplasm therein to flip.

[0042] In order to enable the shaping mold 3 to rotate and still be fed with steam and cold air after rotation. Figure 3 and Figure 4 As shown, the base 1 is set to be hollow, and the hollow part forms an introduction cavity 1a, and the steam outlet of the steam structure 4 and the air cooling outlet of the cooling structure 5 are connected to the introduction cavity 1a respectively, so that steam or cold air can be introduced into the introduction cavity 1a.

[0043] Secondly, the top of the base 1 is recessed downward to form a first installation groove 11, and an inlet hole is set at the top of the base 1 as part of the first installation groove 11 to allow the steam or cold air in the inlet cavity 1a to come out. At the same time, the lower mold 31 is placed in the first installation groove 11 to ensure that the lower through hole 311 of the lower mold 31 can be connected to the inlet hole, so that the steam or cold air in the inlet cavity 1a can enter the lower mold 31.

[0044] Similarly, the bottom of the pressing plate 2 is recessed upward to form a second mounting groove 21, and the upper mold 32 is arranged in the second mounting groove 21. Since the upper mold 32 is in a superior arc shape, the corresponding second mounting groove 21 is also in a superior arc shape, so that the slot width of the second mounting groove 21 is smaller than the slot width, which can prevent the upper mold 32 from falling out of the second mounting groove 21. At the same time, the upper mold 32 is provided with an upper through hole 321, and the upper through hole 321 is consistent in shape and size with the lower through hole 311, so that the upper mold 32 can be connected with the introduction hole later, so that the steam or cold air in the introduction cavity 1a can enter the upper mold 32.

[0045] At the same time, an elastic cloth 22 is provided in the second installation groove 21, and an air cavity 211 is formed between the bottom of the second installation groove 21 and the elastic cloth 22, and the air cavity is connected to a gas piece 23 for inflating and deflating air; a mounting portion 212 for accommodating the upper mold 32 is formed between the elastic cloth 22 and the notch of the second installation groove 21. When the air cavity 211 is inflated, the elastic cloth 22 can be pressed against the upper mold 32, increasing the pressure on the upper mold 32, thereby increasing the pressure of the upper mold 32 on the cigarette embryo inside it, and the magnitude of the pressure is related to the amount of the inflated gas substance. In some embodiments, a low surface energy coating, such as a polytetrafluoroethylene coating, is provided on the side of the elastic cloth 22 close to the upper mold 32.

[0046] A method for quickly shaping cigar tobacco endometres using the pressure shaping device comprises the following steps: S1. Place the rolled cigar endometrium in the lower mold 31 of the pressure shaping device; appropriately inflate the air cavity 211 through the gas piece 23 until the elastic cloth is pressed against the upper mold 32; start the lifting structure to drive the pressing plate 2 and the upper mold 32 to move downward, so that the upper mold 32 covers the cigar endometrium and presses it tightly, and the upper mold 32 and the lower mold 31 are connected by magnetic attraction of the electromagnet. At this time, the pressure of the pressure sensor is displayed as 2.45MPa.

[0047] S21. Continue to inflate the air cavity 211 through the air piece 23 until the pressure displayed by the pressure sensor is 2.5 MPa. Turn on the steam structure 4 to steam the cigarette embryos in the pressure shaping device at a temperature of 50° C. for 45 seconds.

[0048] S22. Keep the steam structure 4 open, and extract part of the gas in the gas cavity 211 through the gas piece 23 until the pressure of the pressure sensor shows 2.45MPa; then drive the shaping mold 3 to rotate 90° through the rotating piece 33. The exhaust operation process takes about 1s, the rotation operation process takes about 1s, and then the steam treatment takes 2s, so the steam treatment is carried out at 2.45MPa for 3s.

[0049] S23. Repeat steps S21 and S22 for 9 times, which takes about 7.5 minutes in total.

[0050] S3. Close the steam structure 4 and open the cooling structure 5 to cool the tobacco embryos in the pressure shaping device. After 5 minutes, the temperature of the tobacco embryos drops to 24° C. and the cooling structure 5 is closed.

[0051] S4. Continue to maintain the pressure of 2.5 MPa for 55 minutes, then release the electromagnet connection between the upper mold 32 and the lower mold 31, start the lifting structure to drive the pressing plate 2 and the upper mold 32 to move upward, and obtain the shaped cigarette endoplasm.

[0052] Example 3 This embodiment is basically the same as Embodiment 2, and the only difference is that: S21. Continue to inflate the air cavity 211 through the air piece 23 until the pressure sensor shows a pressure of 2.5 MPa. Open the steam structure 4 to steam the cigarette embryos in the pressure shaping device at a temperature of 50°C for 40 seconds; then close the steam structure 4 and let it stand for 5 seconds.

[0053] S22. Open the steam structure 4, and extract part of the gas in the air cavity 211 through the gas piece 23 until the pressure of the pressure sensor shows 2.45 MPa; then drive the shaping mold 3 to rotate 90° through the rotating piece 33. The rotation operation takes about 1 second, and then the steam treatment is 2 seconds, so the steam treatment is carried out at 2.45 MPa for 3 seconds.

[0054] S23. Repeat steps S21 and S22 9 times.

[0055] Example 4 This embodiment is basically the same as Embodiment 2, except that S3 includes the following steps: S31. Close the steam structure 4 and open the cooling structure 5 to cool the cigarette embryos in the pressure shaping device, and air-cool them at a pressure of 2.5 MPa for 25 seconds.

[0056] S32. Keep the cooling structure 5 open, and extract part of the gas in the gas cavity 211 through the gas piece 23 until the pressure of the pressure sensor shows 2.45MPa; then drive the shaping mold 3 to rotate 90° through the rotating piece 33. The rotation operation takes about 1s, and then the cooling process is 2s, so the cooling process is carried out at 2.45MPa for 3s.

[0057] S33. Repeat steps S31 and S32 for 9 times until the temperature of the inner embryo of the cigarette reaches 24° C., which takes about 4.5 minutes, and then close the cooling structure 5.

[0058] Example 5 The method for quickly shaping the cigar tobacco endostearm using the pressure shaping device in Example 2 comprises the following steps: S1. Place the rolled cigar endometrium in the lower mold 31 of the pressure shaping device; appropriately inflate the air cavity 211 through the gas piece 23 until the elastic cloth is pressed against the upper mold 32; start the lifting structure to drive the pressing plate 2 and the upper mold 32 to move downward, so that the upper mold 32 covers the cigar endometrium and presses it tightly, and the upper mold 32 and the lower mold 31 are connected by magnetic attraction of the electromagnet. At this time, the pressure of the pressure sensor is displayed as 2.45MPa.

[0059] S21. Continue to inflate the air cavity 211 through the air piece 23 until the pressure sensor shows a pressure of 2.5 MPa. Open the steam structure 4 to steam the cigarette embryos in the pressure shaping device at a temperature of 50°C for 40 seconds; then close the steam structure 4 and let it stand for 5 seconds.

[0060] S22. Open the steam structure 4, and extract part of the gas in the air cavity 211 through the gas piece 23 until the pressure of the pressure sensor shows 2.45 MPa; then drive the shaping mold 3 to rotate 90° through the rotating piece 33. The rotation operation takes about 1 second, and then the steam treatment is 2 seconds, so the steam treatment is carried out at 2.45 MPa for 3 seconds.

[0061] S23. Repeat steps S21 and S22 9 times.

[0062] S31. Close the steam structure 4 and open the cooling structure 5 to cool the cigarette embryos in the pressure shaping device, and air-cool them at a pressure of 2.5 MPa for 25 seconds.

[0063] S32. Keep the cooling structure 5 open, and extract part of the gas in the gas cavity 211 through the gas piece 23 until the pressure of the pressure sensor shows 2.45MPa; then drive the shaping mold 3 to rotate 90° through the rotating piece 33. The rotation operation takes about 1s, and then the cooling process is 2s, so the cooling process is carried out at 2.45MPa for 3s.

[0064] S33. Repeat steps S31 and S32 for 9 times until the temperature of the inner embryo of the cigarette reaches 24° C., which takes about 4.5 minutes, and then close the cooling structure 5.

[0065] S4. Maintain the pressure at 2.5 MPa for 55 minutes, then release the connection between the upper mold 32 and the lower mold 31, start the lifting structure to drive the pressing plate 2 and the upper mold 32 to move upward, and obtain the shaped cigarette endoplasm.

[0066] Comparative Example 1 The shaping method using the pressure shaping device in Example 1 comprises the following steps: The rolled cigar endoplasm is placed in the lower mold 31 of the pressure shaping device, and the lifting structure is activated to drive the pressing plate 2 and the upper mold 32 to move downward, so that the upper mold 32 covers the endoplasm of the cigar and presses it tightly until the pressure of the pressure sensor reaches 2.5MPa, which is maintained for 67.5 minutes. Then the lifting structure is activated to drive the pressing plate 2 and the upper mold 32 to move upward to obtain the shaped endoplasm of the cigar.

[0067] Comparative Example 2 The shaping method using the pressure shaping device in Example 1 comprises the following steps: The rolled cigar endoplasm is placed in the lower mold 31 of the pressure shaping device, and the lifting structure is started to drive the pressing plate 2 and the upper mold 32 to move downward, so that the upper mold 32 covers the endoplasm of the cigar and presses it tightly until the pressure of the pressure sensor reaches 2.5MPa, which is maintained for 12 hours. Then the lifting structure is started to drive the pressing plate 2 and the upper mold 32 to move upward to obtain the shaped endoplasm of the cigar.

[0068] Take the tobacco endostears obtained in the embodiments and comparative examples, 20 cigarettes in each embodiment or comparative example, and after making cigars, perform appearance quality inspection according to GB 15269 to determine whether the maximum deviation of the central axis, tightness, etc. are qualified, and calculate the qualified rate. The qualified rate is shown in Table 1 below.

[0069] Table 1. As shown in Table 1, it can be seen that the present application can reduce the shaping time while ensuring the shaping effect on the cigar.

[0070] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A method for quickly shaping cigar tobacco endometres, characterized in that: The following steps are involved: S1. Place the rolled cigar endoplasm in a pressure shaping device and press it to shape; S2. steaming the tobacco embryos in the pressure shaping device at a temperature of 40 to 60° C. for a duration of 5 to 10 minutes; S3. Cooling the tobacco embryo in the pressure shaping device until the temperature of the tobacco embryo is 20-25°C; S4. The cigarette endostearm is kept in the pressure shaping device for 50 to 60 minutes to obtain the shaped cigarette endostearm.

2. The method for rapidly shaping cigar tobacco endostearm according to claim 1, characterized in that: Step S2 includes the following steps: S21. Steam treatment at a pressure of 2.2-2.8 MPa for 30-60 seconds; S22. After reducing the pressure by 0.01-0.1 MPa, the tobacco embryo is turned over and steamed for 1-5 seconds; S23. Repeat steps S21 and S22.

3. The method for rapidly shaping cigar tobacco endostearm according to claim 2, characterized in that: In step S21, steam treatment is performed at a pressure of 2.2-2.8 MPa for 27-52 seconds, followed by standing for 3-8 seconds.

4. The method for rapidly shaping cigar tobacco endostearm according to claim 1, characterized in that: Step S3 includes the following steps: S31. Air-cooling treatment at 2.2-2.8 MPa pressure for 20-30 seconds; S32. After reducing the pressure by 0.01-0.1 MPa, the cigarette embryo is turned over and air-cooled for 1-5 seconds; S33. Repeat steps S31 and S32 until the temperature of the tobacco embryo reaches 20-25°C.

5. A pressure shaping device for performing the shaping method according to any one of claims 1 to 4, comprising a base (1), a pressing plate (2), and a lifting structure for driving the pressing plate (2) to move back and forth relative to the base (1); characterized in that: It also comprises a shaping mold (3), the shaping mold (3) comprising a lower mold (31) arranged on the base (1), and an upper mold (32) arranged on the pressing plate (2), and a shaping cavity is formed in the shaping mold (3); It also includes a steam structure (4) for introducing steam into the molding cavity, and a cooling structure (5) for introducing cold air into the molding cavity.

6. A pressure shaping device according to claim 5, characterized in that: The base (1) comprises an inlet cavity (1a) respectively connected to the steam structure (4) and the cooling structure (5), and the lower mold (31) is provided with a lower through hole (311) connected to the inlet cavity (1a).

7. A pressure shaping device according to claim 6, characterized in that: The base (1) is provided with a first mounting groove (11), the first mounting groove (11) is provided with an introduction hole connected to the introduction cavity (1a), the lower mold (31) is rotatably arranged in the first mounting groove (11), and the lower through hole (311) can be connected to the introduction hole; The pressing plate (2) is provided with a second mounting groove (21), the upper mold (32) is rotatably arranged in the second mounting groove (21), and the upper mold (32) is provided with an upper through hole (321); The upper mold (32) and the lower mold (31) are detachably connected; It also includes a rotating member (33) for driving the shaping mold (3) to rotate.

8. A pressure shaping device according to claim 7, characterized in that: An elastic cloth (22) is provided in the second installation groove (21); an air cavity (211) is formed between the groove bottom of the second installation groove (21) and the elastic cloth (22); the air cavity is connected to a gas piece (23) for inflating and deflating air; and a mounting portion (212) for accommodating the upper mold (32) is formed between the elastic cloth (22) and the groove opening of the second installation groove (21).

9. A pressure shaping device according to claim 7, characterized in that: The upper mold (32) is in a major arc shape, and the lower mold (31) is in a minor arc shape.

10. A pressure shaping device according to claim 5, characterized in that: A pressure sensor and a temperature sensor are provided in the upper mold (32) and / or the lower mold (31).

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