A real-time online correction device for preparing reconstituted tobacco using the slurry method

Abstract

This utility model discloses a real-time online correction device for preparing reconstituted tobacco using the slurry method. The correction device (1) includes a slider (11), a guide rail (12), a cylinder (15), a cylinder connecting push rod (16), and a displacement sensor (17). The cylinder connecting push rod (16) connects the slider (11) and the cylinder (15). The slider (11) is arranged on the guide rail (12), and a bearing (13) is located inside the slider (11). The bearing (13) is fixedly connected to the central axis of the correction roller (14). The guide rail (12) is arranged on the correction mounting frame (22). The correction roller (14) is arranged on the lower surface of the steel strip (3). The correction device of this utility model can achieve real-time online continuous correction during the preparation of reconstituted tobacco, ensuring the stability of the preparation of reconstituted tobacco.

Description

Technical Field

[0001] This utility model belongs to the field of reconstituted tobacco preparation technology, specifically involving a real-time online correction device and method for the first time in the process of preparing reconstituted tobacco using the slurry method. Background Technology

[0002] Currently, reconstituted tobacco is the primary tobacco segment material used in HNB (Heated Tobacco) cigarettes. Reconstituted tobacco retains the effective components of natural tobacco while exhibiting high plasticity, homogeneity, and controllability, making it the main tobacco segment material for HNB cigarettes. For example, the internationally marketed "iQOS" cigarettes use orderly arranged slurry-processed reconstituted tobacco, the "Eclipse" cigarettes use paper-processed reconstituted tobacco, and the "glo" cigarettes use disordered arranged paper-processed reconstituted tobacco. Domestic research on reconstituted tobacco as a tobacco segment material for HNB cigarettes is still in its early stages. Publicly reported production methods for reconstituted tobacco used in HNB cigarettes mainly include four types: paper-process, dry process, slurry process, and roll pressing. Currently, there is still significant room for improvement in the uniformity and stability of reconstituted tobacco production processes.

[0003] The slurry method for preparing reconstituted tobacco involves crushing tobacco dust, stems, and other raw materials according to the reconstituted tobacco raw material formula, mixing them with water, adhesives, and other additives in a specific ratio, and stirring until a slurry is formed. This slurry is then placed in a headbox, from which it flows out and is evenly spread onto a circulating metal belt (usually a steel belt) for drying. The resulting reconstituted tobacco is then peeled off. Currently, in the slurry method for preparing reconstituted tobacco, the headbox (containing the slurry) is fixed, and the movement of the metal belt relies on the friction between the steel belt and rollers, rather than precise linkages such as gears. Therefore, the steel belt can deviate from its designated path. This deviation, caused by the rollers, results in uneven thickness and unstable performance of the prepared reconstituted tobacco. This invention addresses these issues. Utility Model Content

[0004] This utility model discloses a real-time online correction device for preparing reconstituted tobacco using the slurry method, which can effectively improve the stability of reconstituted tobacco production using the slurry method.

[0005] The technical solution of this utility model is as follows:

[0006] A real-time online correction device for preparing reconstituted tobacco using the slurry method is disclosed. The correction device 1 includes a slider 11, a guide rail 12, a cylinder 15, a cylinder connecting push rod 16, and a displacement sensor 17. The cylinder connecting push rod 16 connects the slider 11 and the cylinder 15. The slider 11 is arranged on the guide rail 12, and a bearing 13 is located inside the slider 11. The bearing 13 is fixedly connected to the central axis of the correction roller 14. The guide rail 12 is arranged on a correction mounting frame 22. The correction roller 14 is arranged on the lower surface of the steel belt 3.

[0007] Preferably, there are two correction devices 1, and the bearings 13 in the slider 11 of each correction device 1 are fixedly connected to both ends of the central shaft of the correction roller 14.

[0008] Preferably, the cylinder 15 of each correction device 1 is connected to the three-way valve 6 via the solenoid valve 9, the proportional valve 8 and the pressure reducing valve 7; the three-way valve 6 is connected to the outlet of the compressed gas filter 5; the solenoid valve 9, the proportional valve 8 and the pressure reducing valve 7 are electrically connected via the controller 100.

[0009] Preferably, the real-time online correction device further includes a correction detection device 2; the correction detection device 2 includes at least one correction detection roller 21, a displacement sensor 23 and a support box 24; both sides of the steel strip 3 are in contact with the correction detection roller 21; the correction detection roller 21, the displacement sensor resistance ruler 23 and the support box 24 are arranged on the correction mounting frame 22.

[0010] Preferably, a headbox 4 is arranged upstream of the steel strip 3; a position sensor 41 is arranged on the headbox 4; the position sensor 41 and the displacement sensor 17 are electrically connected through the controller 100.

[0011] The real-time online correction device of this utility model operates on the following principle during the preparation of reconstituted tobacco using the slurry method: During the preparation of reconstituted tobacco, the displacement sensor 23 continuously detects the displacement between the correction roller 14 and the steel belt 3. If the steel belt 3 deviates from its designated position, the controller 100 controls the cylinder solenoid valve 9, the proportional valve 8, and the pressure reducing valve 7 to change the pressure in the cylinder 15. This causes the cylinder-connected push rod 16 to move the slider 11 forward or backward (in the case of only one correction device 1), thereby moving one end of the correction roller 14 forward or backward, ensuring the normal movement of the steel belt 3 and guaranteeing real-time online correction of the steel belt 3. Simultaneously, the controller 100 controls the position sensor 41 on the headbox 4 to control the flow rate and position of the headbox 4, ensuring that the prepared reconstituted tobacco has uniform thickness and stable performance, achieving the technical effect of bidirectional real-time online adjustment.

[0012] If there are two correction devices 1, the controller 100 controls the cylinder solenoid valve 9, the proportional valve 8 and the pressure reducing valve 7 to change the pressure in the cylinder 15. This pushes one cylinder connected to the push rod 16 to move the slider 11 forward, while the other cylinder connected to the push rod 16 moves the slider 11 backward. This causes one end of the correction roller 14 to move forward and the other end to move backward, allowing the steel belt 3 to move normally and ensuring that the real-time online correction speed of the steel belt 3 is faster.

[0013] The beneficial effects of this utility model are:

[0014] The real-time online correction device of this invention is simple in design; in the process of preparing reconstituted tobacco leaves by the slurry method, the correction speed is fast and the correction effect is good; the thickness of the obtained reconstituted tobacco leaves is uniform, and the error does not exceed 0.01mm; the yield of reconstituted tobacco leaves can reach 95% in long-term production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the correction device in Example 1.

[0016] Figure 2 This is a schematic diagram showing the connection of the components to the two correction devices.

[0017] Figure 3 This is a schematic diagram of the correction and detection device.

[0018] Figure 4 The installation positions of the correction device and the correction detection device in the slurry method for preparing reconstituted tobacco leaves.

[0019] The attached diagram is labeled as follows: 1. Correction device; 11. Slider; 12. Guide rail; 13. Bearing; 14. Correction roller; 15. Cylinder; 16. Cylinder connecting push rod; 17. Displacement sensor. 2. Correction detection device; 21. Correction detection roller; 22. Correction mounting frame; 23. Displacement sensor; 24. Support box; 3. Steel belt; 4. Headbox; 41. Position sensor; 5. Compressed gas filter; 6. T-junction; 7. Pressure reducing valve; 8. Proportional valve; 9. Solenoid valve; 100. Controller. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "adhesion," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this specification, the illustrative expressions of the terms used above should not be construed as necessarily referring to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0024] like Figure 1 As shown, a real-time online correction device for preparing reconstituted tobacco using the slurry method is disclosed. The correction device 1 includes a slider 11, a guide rail 12, a cylinder 15, a cylinder connecting rod 16, and a displacement sensor 17. The cylinder connecting rod 16 connects the slider 11 and the cylinder 15. The slider 11 is arranged on the guide rail 12, and a bearing 13 is located inside the slider 11. The bearing 13 is fixedly connected to the central axis of the correction roller 14. The guide rail 12 is arranged on a correction mounting frame 22. The correction roller 14 is arranged on the lower surface of the steel strip 3. Figure 2 As shown, there are two correction devices 1, and the bearings 13 inside the slider 11 of each correction device 1 are fixedly connected to both ends of the central shaft of the correction roller 14. The cylinder 15 of each correction device 1 is connected to a three-way valve 6 via a solenoid valve 9, a proportional valve 8, and a pressure reducing valve 7; the three-way valve 6 is connected to the outlet of the compressed gas filter 5; the solenoid valve 9, the proportional valve 8, and the pressure reducing valve 7 are electrically connected via a controller 100.

[0025] like Figure 3 As shown, the real-time online correction device also includes a correction detection device 2; the correction detection device 2 includes at least one correction detection roller 21, a displacement sensor 23 and a support box 24; both sides of the steel strip 3 are in contact with the correction detection roller 21; the correction detection roller 21, the displacement sensor resistance ruler 23 and the support box 24 are arranged on the correction mounting frame 22.

[0026] like Figure 4 As shown, a headbox 4 is arranged upstream of the steel strip 3; a position sensor 41 is arranged on the headbox 4; the position sensor 41 and the displacement sensor 17 are electrically connected through the controller 100.

[0027] The real-time online correction device of this invention operates on the following principle during the preparation of reconstituted tobacco using the slurry method:

[0028] In the case where there is only one correction device 1: During the reconstituted tobacco preparation process, the displacement sensor 23 can detect the displacement between the correction roller 14 and the steel belt 3 in real time. If the steel belt 3 deviates, under the control of the controller 100, compressed air after removing solid impurities enters the compressed gas filter 5. Through the cylinder solenoid valve 9, proportional valve 8 and pressure reducing valve 7, the pressure in the cylinder 15 is changed, which pushes the cylinder connecting push rod 16 to drive the slider 11 to move forward or backward, thereby driving one end of the correction roller 14 to move forward or backward, so that the steel belt 3 moves normally and ensures the real-time online correction of the steel belt 3. At the same time, the controller 100 controls the position sensor 41 on the headbox 4 to control the flow rate and flow position of the headbox 4, ensuring that the prepared reconstituted tobacco has uniform thickness and stable performance; achieving the technical effect of bidirectional real-time online adjustment.

[0029] If there are two correction devices 1: the compressed air after removing solid impurities enters the compressed gas filter 5 and is split into two branches through the three-way valve 6; the controller 100 controls the two cylinder solenoid valves 9, proportional valve 8 and pressure reducing valve 7 respectively, changing the pressure in the two cylinders 15, pushing one cylinder connected to the push rod 16 to drive the slider 11 forward, and the other cylinder connected to the push rod 16 to drive the slider 11 backward, thereby driving one end of the correction roller 14 forward and the other end of the correction roller 14 backward, so that the steel belt 3 moves normally, ensuring that the real-time online correction speed of the steel belt 3 is faster; at the same time, the controller 100 controls the position sensor 41 on the headbox 4 to control the flow rate and flow position of the headbox 4, ensuring that the reconstituted tobacco leaves prepared are of uniform thickness and have stable performance; it also achieves the technical effect of bidirectional real-time online adjustment.

[0030] The real-time online correction device of this invention is simple in design; in the process of preparing reconstituted tobacco leaves by the slurry method, the correction speed is fast and the correction effect is good; the thickness of the obtained reconstituted tobacco leaves is uniform, and the error does not exceed 0.01mm; the yield of reconstituted tobacco leaves can reach 95% in long-term production.

[0031] The above embodiments are not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A real-time online rectification device for preparing reconstituted tobacco leaf by a thick stock process, characterized in that, The correction device (1) includes a slider (11), a guide rail (12), a cylinder (15), a cylinder connecting push rod (16), and a displacement sensor (17); the cylinder connecting push rod (16) connects the slider (11) and the cylinder (15); the slider (11) is arranged on the guide rail (12), and there is a bearing (13) inside the slider (11), which is fixedly connected to the central axis of the correction roller (14); the guide rail (12) is arranged on the correction mounting frame (22); the correction roller (14) is arranged on the lower surface of the steel strip (3).

2. The real time online correction device for the preparation of reconstituted tobacco leaf by the thick stock process according to claim 1, characterized in that, There are two correction devices (1), and the bearings (13) in the slider (11) of each correction device (1) are fixedly connected to both ends of the central shaft of the correction roller (14).

3. The real-time online correction device for preparing reconstituted tobacco using the slurry method according to claim 2, characterized in that, The cylinder (15) of each correction device (1) is connected to the tee (6) via the solenoid valve (9), the proportional valve (8) and the pressure reducing valve (7); the tee (6) is connected to the outlet of the compressed gas filter (5); the solenoid valve (9), the proportional valve (8) and the pressure reducing valve (7) are electrically connected via the controller (100).

4. The real time online deviation rectifying device for the preparation of reconstituted tobacco sheet in a thick stock process as claimed in claim 1 wherein, The real-time online correction device also includes a correction detection device (2); the correction detection device (2) includes at least one correction detection roller (21), a displacement sensor (23) and a support box (24); the two sides of the steel strip (3) are in contact with the correction detection roller (21); the correction detection roller (21), the displacement sensor resistance ruler (23) and the support box (24) are arranged on the correction mounting frame (22).

5. The real time online deviation rectifying device for the preparation of reconstituted tobacco sheet in a thick stock process as claimed in claim 1 wherein, A headbox (4) is arranged upstream of the steel strip (3); a position sensor (41) is arranged on the headbox (4); the position sensor (41) and the displacement sensor (17) are electrically connected through a controller (100).

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