Balanced stress measuring device for tobacco shred section of cigarette
By designing a tobacco segment balance stress measurement device containing a flexible pressure sensor, the problem of difficulty in accurately measuring the tobacco equilibrium stress in the prior art is solved, and the balance stress measurement is achieved with good sealing, which reduces the test cost.
Patent Information
- Application Number
- CN202421227576.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The prior art is difficult to accurately measure the balance stress of tobacco compressing and then relaxing during the rolling process, and traditional detection devices will change the internal structure of the tobacco segment, affecting the accuracy of the measurement results.
A balancing stress measuring device for tobacco thread segments is designed, including a first housing, a second housing, a flexible pressure sensor, an end plate and an end cap. The tobacco thread rolling process is simulated through the filling channel and the sealing cavity, and the flexible pressure sensor is used. Detect equilibrium stress.
The device can measure the balance stress of tobacco on simulated cigarette paper with good sealing properties, without the need to make a tobacco sample, reduce the test cost, and accurately reflect the mechanical changes of the tobacco thread during the rolling process.
Smart Images
Figure CN222516194U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cigarette manufacturing, in particular to a device for measuring the balanced stress of tobacco segments of a cigarette. Background Art
[0002] During the production of cigarettes, tobacco is wrapped with cigarette paper. During this process, the tobacco can be considered to have a constant volume after being compressed. During the rolling process, tobacco undergoes stress changes, first compressed and then relaxed, and the final stress cannot relax to zero and interact with the cigarette paper to reach a balanced stress. This balanced stress is the interaction force between tobacco and cigarette paper, which is particularly important for the quality indicators of cigarettes. For traditional cigarettes, the size of the balanced stress directly affects quality indicators such as empty cigarettes, fallen ends, and thin cigarettes. For heated cigarettes, it affects quality indicators such as the amount of migration of additives in tobacco to cigarette paper, the resistance to drawing, and the difficulty of inserting and removing smoking utensils.
[0003] At present, the filling value is often used to characterize the filling capacity of tobacco in a cigarette, that is, the volume occupied by a unit mass of tobacco. However, the filling value is a static value and cannot accurately reflect the mechanical changes of tobacco in the entire dynamic process of compression, relaxation and equilibrium during the rolling process. In addition, the existing detection device for measuring the equilibrium stress generated by tobacco shreds wrapped circumferentially by cigarette paper measures by inserting an expansion force gauge into the tobacco shred segment, but this method will change the internal structure of the tobacco shred segment, thereby changing the mechanical properties, which will ultimately affect the accuracy of the equilibrium stress measurement results.
[0004] Therefore, there is an urgent need for a device for measuring the balanced stress of tobacco segments of a cigarette to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a device for measuring the equilibrium stress of tobacco shreds in cigarettes, which has good sealing performance and can measure the change of equilibrium stress by changing the filling amount of tobacco shreds without making cigarette samples, thereby reducing the test cost and effectively and accurately measuring the equilibrium stress of tobacco shreds on cigarette paper.
[0006] In order to solve the above problems existing in the prior art, the utility model adopts the following technical solutions:
[0007] The device for measuring the balanced stress of a tobacco segment of a cigarette comprises:
[0008] a first shell;
[0009] A second shell, the second shell is rotatably disposed on the first shell, and the second shell can be buckled with the first shell to form a filling channel, and the filling channel is used to accommodate tobacco;
[0010] A flexible pressure sensor, the flexible pressure sensor being arranged on the inner side wall of the filling channel, and the flexible pressure sensor being used to detect the equilibrium stress during tobacco filling;
[0011] an end plate, the end plate being disposed on the first shell and capable of blocking an opening at one end of the filling channel;
[0012] An end cover can be arranged to cover the other end opening of the filling channel so that a sealed cavity is formed among the end cover, the end plate, the first shell and the second shell.
[0013] Preferably, the cigarette tobacco segment equilibrium stress measuring device further comprises a hinge, and the first shell is rotatably connected to the second shell via the hinge.
[0014] Preferably, the cigarette tobacco segment balanced stress measuring device also includes a locking assembly, the locking assembly includes a lock buckle and a lock hook, the lock hook is arranged on the first shell, and the lock buckle is arranged on the second shell, when the first shell is buckled with the second shell, the lock hook is fixedly connected to the lock buckle to lock and fix the first shell relative to the second shell.
[0015] Preferably, the cigarette tobacco segment balanced stress measuring device further comprises a first seal, which is arranged at a side edge of the first shell, and when the first shell is buckled with the second shell, the first seal abuts against the side edge of the second shell.
[0016] Preferably, the cigarette tobacco segment balanced stress measuring device also includes a second seal, the inner circle of the second seal is connected to the outer edge of the end cover, and when the end cover is covered with the other end opening of the filling channel, the outer circle of the second seal abuts against the inner side wall of the first shell and the inner side wall of the second shell.
[0017] Preferably, the cigarette tobacco segment balanced stress measuring device also includes a third seal, and there are two third seals. The two third seals are respectively connected to the inner side wall of the first shell and the inner side wall of the second shell, and the third seal can abut against the outer edge of the end cover.
[0018] Preferably, the end plate is integrally formed with the first shell.
[0019] Preferably, the device for measuring balanced stress of a tobacco segment of a cigarette further comprises a handle, and the handle is protruding from the end cover.
[0020] Preferably, the cigarette tobacco segment equilibrium stress measuring device also includes a monitor, which is electrically connected to the flexible pressure sensor via a wiring harness, and is used to display the equilibrium stress value. The first shell and the second shell are both provided with threading holes, and the threading holes are used to pass the wiring harness.
[0021] Preferably, the first shell and the second shell are arc-shaped structures.
[0022] The beneficial effects of the utility model are:
[0023] The utility model provides a device for measuring the balanced stress of tobacco shreds in a cigarette. The second shell is rotatably arranged on the first shell, and the second shell can be buckled with the first shell to form a filling channel. Different amounts of tobacco shreds are filled into the filling channel to simulate the process of tobacco shreds rolling. The flexible pressure sensor is arranged on the inner wall of the filling channel and is used to simulate cigarette paper. The flexible pressure sensor is used to detect the balanced stress when the tobacco shreds are filled. The end plate is arranged on the first shell, and the end plate can block the opening at one end of the filling channel. The end cover can cover the opening at the other end of the filling channel, so that a sealed cavity is formed between the end cover, the end plate, the first shell and the second shell. At this time, the tobacco shreds are located in the sealed cavity, and the sealing performance is good. The entire measurement process will not be disturbed by the outside world. After the stress is balanced, the flexible pressure sensor replaces the cigarette paper and measures the balanced stress caused by the tobacco shreds on the inner wall of the filling channel. The change of the balanced stress can be measured by changing the amount of tobacco shreds filled without making cigarette samples, which reduces the test cost and can effectively and accurately measure the balanced stress of the tobacco shreds on the flexible pressure sensor simulating cigarette paper. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic diagram of the structure of the device for measuring the balanced stress of tobacco segments of a cigarette provided by an embodiment of the utility model in an open state;
[0025] Figure 2 A schematic diagram of the structure of the end cover, the handle and the second sealing member provided in an embodiment of the utility model;
[0026] Figure 3 A top view of a device for measuring balanced stress of tobacco segments of a cigarette provided by an embodiment of the utility model;
[0027] Figure 4 A schematic diagram of the structure of a device for measuring the balanced stress of a tobacco segment of a cigarette provided in an embodiment of the utility model.
[0028] Reference numerals:
[0029] 1. First shell; 2. Second shell; 3. Filling channel; 4. Flexible pressure sensor; 5. End plate; 6. End cover; 7. Sealing cavity; 8. Hinge; 9. Lock; 10. Lock hook; 11. First seal; 12. Second seal; 13. Third seal; 14. Handle; 15. Wiring harness; 16. Threading hole. DETAILED DESCRIPTION
[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0033] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0034] like Figure 1-Figure 4As shown, in this embodiment, the device for measuring the balanced stress of tobacco shreds of a cigarette comprises a first shell 1, a second shell 2, a flexible pressure sensor 4, an end plate 5 and an end cover 6. The second shell 2 is rotatably arranged on the first shell 1, and the second shell 2 can be buckled with the first shell 1 to form a filling channel 3, the filling channel 3 is used to accommodate tobacco shreds, the flexible pressure sensor 4 is arranged on the inner side wall of the filling channel 3, and the flexible pressure sensor 4 is used to detect the balanced stress when the tobacco shreds are filled. The end plate 5 is arranged on the first shell 1, and the end plate 5 can block one end opening of the filling channel 3, and the end cover 6 can cover the other end opening of the filling channel 3, so that a sealed cavity 7 is formed between the end cover 6, the end plate 5, the first shell 1 and the second shell 2. Specifically, one side edge of the first shell 1 is rotated to cooperate with one side edge of the second shell 2, so that the first shell 1 and the second shell 2 are buckled to form a filling channel 3 capable of accommodating tobacco shreds. The first shell 1 and the second shell 2 are arc-shaped structures, and the cross-sectional shape of the filling channel 3 is a circular structure, which conforms to the cylindrical structure after the cigarette paper is rolled. The end plate 5 on the first shell 1 can block the opening of one end of the filling channel 3. The flexible pressure sensor 4 is set as a thin film pressure sensor, which is a piezoresistive flexible sensor, which is composed of a matrix polymer material containing a conductive substance sandwiched between two layers of polymer films. The polymer material is a carrier of the conductive material, and the conductive material provides carriers. When it is not subjected to normal pressure, the entire sensor has a great resistance effect due to the small carrier density. After the front side of the flexible pressure sensor 4 is subjected to a normal load, the carriers carried by the matrix material are deformed, so that the carrier spacing changes to form a conductive channel, thereby reducing the resistance of the flexible pressure sensor 4, so that the pressure can be measured by calibration. The flexible pressure sensor 4 is made of a flexible material, which is glued and fixed to the inner wall of the first shell 1 and the second shell 2 and is used to simulate cigarette paper. Different amounts of tobacco are filled into the filling channel 3 to simulate the process of tobacco rolling, and the other end opening of the filling channel 3 is blocked by the end cover 6. At this time, the tobacco is located in the sealing cavity 7, and the sealing is good. The whole measurement process will not be disturbed by the outside world. After the stress is balanced, the flexible pressure sensor 4 replaces the cigarette paper and measures the equilibrium stress value caused by the tobacco on the inner wall of the filling channel 3. The change of equilibrium stress can be measured by changing the filling amount of tobacco without making cigarette samples, which reduces the test cost and can effectively and accurately measure the equilibrium stress of the flexible pressure sensor 4 of tobacco simulating cigarette paper. Optionally, the size of the first shell 1 and the second shell 2 can be customized according to the specifications of the actual production of cigarettes. Preferably, since flavors, smoke-generating agents, etc. are added to the heated cigarette, and it is found through experiments that different tobacco filling amounts will cause the migration amount of the added substances on it to the cigarette paper to change, therefore, it is only necessary to paste cigarette paper on the inner wall of the filling channel 3, and then place different amounts of tobacco to measure the change of the migration amount of the added substances in the tobacco to the cigarette paper after being placed for a certain period of time under different equilibrium stresses.
[0035] Further, continue to refer to Figure 1-Figure 4 The device for measuring the balanced stress of tobacco shreds of a cigarette also includes a hinge 8, and the first shell 1 is rotatably connected to the second shell 2 through the hinge 8. Specifically, a parent-child hinge 8 is provided on one side edge of the first shell 1 and a corresponding side edge of the second shell 2, so that the first shell 1 and the second shell 2 can be rotatably matched, so that the first shell 1 and the second shell 2 can be buckled to form a filling channel 3 for accommodating tobacco shreds, and the filling channel 3 forms a sealed cavity 7 under the blocking of the end cover 6 and the end plate 5, and the sealing performance is good. The first shell 1 and the second shell 2 are opened and closed by the hinge 8, and the amount of tobacco filling can be easily increased or decreased.
[0036] Further, continue to refer to Figure 1-Figure 4 The device for measuring balanced stress of tobacco segments of a cigarette also includes a locking assembly, which includes a lock buckle 9 and a lock hook 10. The lock hook 10 is arranged on the first shell 1, and the lock buckle 9 is arranged on the second shell 2. When the first shell 1 is buckled with the first shell 1, the lock hook 10 is fixedly connected to the lock buckle 9, so that the first shell 1 is locked and fixed relative to the second shell 2, ensuring that the first shell 1 and the second shell 2 are always in a closed state, and the filling channel 3 is relatively closed, so that the tobacco is always in the filling channel 3 to prevent the tobacco from leaking.
[0037] Further, continue to refer to Figure 1-Figure 4 The device for measuring balanced stress of tobacco shreds of cigarettes further comprises a first sealing member 11, which is arranged at the side edge of the first shell 1. When the first shell 1 is buckled with the first shell 1, the first sealing member 11 abuts against the side edge of the second shell 2. Specifically, the first sealing member 11 is made of rubber material, the first shell 1 is buckled with the first shell 1, and the first shell 1 is locked and fixed relative to the second shell 2 through the lock buckle 9 and the lock hook 10. The first sealing member 11 is sandwiched between the side edge of the first shell 1 and the side edge of the second shell 2. Under the action of the first sealing member 11, the relative sealing performance of the filling channel 3 is better.
[0038] Further, continue to refer to Figure 1-Figure 4 The device for measuring the balanced stress of tobacco shreds of a cigarette also includes a second seal 12, the inner ring of which is connected to the outer edge of the end cover 6. When the end cover 6 is set to cover the other end opening of the filling channel 3, the outer ring of the second seal 12 abuts against the inner side wall of the first shell 1 and the inner side wall of the second shell 2. Specifically, the second seal 12 is made of rubber material, and the second seal 12 is a sealing ring. The first shell 1 is buckled with the first shell 1, and then the end cover 6 is set to cover the opening of the filling channel 3. The second seal 12 is sandwiched between the end cover 6 and the inner side wall of the filling channel 3 along the circumferential direction, and has good sealing performance, ensuring that the tobacco shreds in the filling channel 3 are in a space with good sealing performance.
[0039] Further, continue to refer to Figure 1-Figure 4The device for measuring the balanced stress of tobacco shreds of a cigarette also includes a third seal 13. There are two third seals 13. The two third seals 13 are respectively connected to the inner side wall of the first shell 1 and the inner side wall of the second shell 2. The third seal 13 can abut against the outer edge of the end cover 6. Specifically, the third seal 13 is made of rubber material. The first shell 1 is buckled with the first shell 1, and then the end cover 6 is covered and blocked at the opening of the filling channel 3. The third seal 13 is sandwiched between the end cover 6 and the inner side wall of the filling channel 3 along the circumferential direction. Under the action of the second seal 12 and the third seal 13, the sealing of the tobacco shreds in the filling channel 3 is further improved.
[0040] Preferably, the end plate 5 and the first shell 1 are integrally formed by casting or the like and are firmly connected.
[0041] Further, continue to refer to Figure 1-Figure 4 The device for measuring balanced stress of tobacco segments of a cigarette also includes a handle 14, which is protruding from the end cover 6, so that an operator can conveniently cover the end cover 6 with the opening of the filling channel 3 by holding the handle 14. Conversely, the end cover 6 can be conveniently removed by holding the handle 14 to test the tobacco.
[0042] Further, continue to refer to Figure 1-Figure 4 The device for measuring the equilibrium stress of tobacco shreds in a cigarette also includes a monitor, which is electrically connected to the flexible pressure sensor 4 through a harness 15. The monitor is used to display the equilibrium stress value. The first shell 1 and the second shell 2 are both provided with threading holes 16, and the threading holes 16 are used to thread the harness 15. Specifically, when the first shell 1 and the second shell 2 are buckled, the two ends of the harness 15 are respectively connected to the flexible pressure sensor 4 and the monitor through the threading holes 16, so as to facilitate the installation of the end cover 6. Without the need to make cigarette samples, the equilibrium stress indirectly generated by tobacco shreds on the inner wall of the filling channel 3 is measured through the flexible pressure sensor 4. The collected resistance change data is converted into a signal through the harness 15 and transmitted to the monitor. The monitor displays the equilibrium stress value in real time, so as to facilitate the personnel to monitor and record the test results.
[0043] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. A device for measuring the balanced stress of a tobacco segment of a cigarette, characterized in that: include: A first housing (1); A second shell (2), the second shell (2) being rotatably disposed on the first shell (1), and the second shell (2) being capable of buckling with the first shell (1) to form a filling channel (3), the filling channel (3) being used to accommodate shredded tobacco; A flexible pressure sensor (4), the flexible pressure sensor (4) being arranged on the inner side wall of the filling channel (3), the flexible pressure sensor (4) being used to detect the equilibrium stress during tobacco filling; an end plate (5), the end plate (5) being arranged on the first shell (1), and the end plate (5) being capable of blocking an opening at one end of the filling channel (3); An end cover (6) can be arranged to cover the other end opening of the filling channel (3) so that a sealed cavity (7) is formed between the end cover (6), the end plate (5), the first shell (1) and the second shell (2).
2. The device for measuring balanced stress of tobacco segments of a cigarette according to claim 1, characterized in that: The cigarette tobacco segment equilibrium stress measuring device further comprises a hinge (8), and the first shell (1) is rotatably connected to the second shell (2) via the hinge (8).
3. The device for measuring balanced stress of tobacco segments of a cigarette according to claim 1, characterized in that: The cigarette tobacco segment equilibrium stress measuring device further comprises a locking assembly, wherein the locking assembly comprises a lock buckle (9) and a lock hook (10), wherein the lock hook (10) is arranged on the first shell (1), and the lock buckle (9) is arranged on the second shell (2), and when the first shell (1) is buckled with the second shell (1), the lock hook (10) is fixedly connected to the lock buckle (9) so that the first shell (1) is locked and fixed relative to the second shell (2).
4. The device for measuring balanced stress of tobacco segments of a cigarette according to claim 1, characterized in that: The cigarette tobacco segment equilibrium stress measuring device further comprises a first sealing member (11), wherein the first sealing member (11) is arranged at a side edge of the first shell (1), and when the first shell (1) is buckled with the first shell (1), the first sealing member (11) abuts against a side edge of the second shell (2).
5. The device for measuring balanced stress of tobacco segments of a cigarette according to claim 1, characterized in that: The device for measuring the balanced stress of a tobacco segment of a cigarette further comprises a second sealing member (12), the inner ring of the second sealing member (12) being connected to the outer edge of the end cover (6), and when the end cover (6) is covered on the other end opening of the filling channel (3), the outer ring of the second sealing member (12) abuts against the inner side wall of the first shell (1) and the inner side wall of the second shell (2).
6. The device for measuring balanced stress of tobacco segments of a cigarette according to claim 1, characterized in that: The cigarette tobacco segment equilibrium stress measuring device further comprises a third sealing member (13), wherein the number of the third sealing members (13) is two, and the two third sealing members (13) are respectively connected to the inner side wall of the first shell (1) and the inner side wall of the second shell (2), and the third sealing member (13) can abut against the outer edge of the end cover (6).
7. The device for measuring balanced stress of tobacco segments of a cigarette according to claim 1, characterized in that: The end plate (5) and the first shell (1) are integrally formed.
8. The device for measuring balanced stress of tobacco segments of a cigarette according to claim 1, characterized in that: The device for measuring the balanced stress of a tobacco segment of a cigarette also includes a handle (14), and the handle (14) is protruding from the end cover (6).
9. The device for measuring balanced stress of tobacco segments of a cigarette according to claim 1, characterized in that: The device for measuring the equilibrium stress of a tobacco segment of a cigarette further comprises a monitor, which is electrically connected to the flexible pressure sensor (4) via a wiring harness (15), and is used to display the equilibrium stress value. The first shell (1) and the second shell (2) are both provided with a threading hole (16), and the threading hole (16) is used to thread the wiring harness (15).
10. The device for measuring balanced stress of tobacco segments of a cigarette according to claim 1, characterized in that: The first shell (1) and the second shell (2) are arc-shaped structures.