Tobacco material conveying system and tobacco production system

Abstract

The utility model relates to a cigarette material conveying system and a tobacco production system, and the cigarette material conveying system comprises a conveying component (1); the first-stage height detection component (2) and the second-stage height detection component (5) are arranged above the conveying component (1) and used for detecting the height of the materials, and the second-stage height detection component (5) and the first-stage height detection component (2) are arranged in a spaced mode in the conveying direction (X) and located on the downstream of the first-stage height detection component (2); the first-stage thinning assembly (4) is located between the first-stage height detection component (2) and the second-stage height detection component (5) in the conveying direction (X) and used for thinning the materials which are detected by the first-stage height detection component (2) and exceed the first preset height; and the second-stage thinning assembly (6) is positioned at the downstream of the second-stage height detection component (5) along the conveying direction (X) and is used for thinning the material which is detected by the second-stage height detection component (5) and exceeds the second preset height.

Description

Technical Field

[0001] The present disclosure relates to the technical field of tobacco material conveying, and in particular to a tobacco material conveying system and a tobacco production system. Background Art

[0002] In recent years, with the rapid development of my country's tobacco industry, improving product purity and ensuring product quality in the processing and production of tobacco materials have become the focus of the industry. At present, many domestic companies have begun to try to use advanced technologies such as spectral recognition and machine vision to develop and apply to the identification and removal of debris after tobacco leaf shredding.

[0003] Image recognition technology, spectral recognition technology, machine vision recognition technology, etc., which are widely used in the cigarette manufacturing process, are developed and applied to the identification and removal of debris after tobacco leaves are cut. Most of them are based on the conveying mechanism (vibration trough, belt) to single-layer and discretize tobacco leaves, tobacco stems and other cigarette raw materials to improve the accuracy of image acquisition, processing and recognition, and then accurately remove foreign objects and foreign matter in the cigarette raw materials.

[0004] The current problem is that this type of recognition system has extremely high requirements for input quality, and the recognition effect of subsequent classified debris recognition equipment is poor. Utility Model Content

[0005] The present disclosure provides a tobacco material conveying system and a tobacco production system, which can improve the effect of identifying and removing foreign matter in tobacco materials.

[0006] The first aspect of the present disclosure provides a tobacco material delivery system, comprising:

[0007] a conveying component configured to convey material;

[0008] The primary height detection component and the secondary height detection component are arranged above the conveying component and are configured to detect the height of the material. The secondary height detection component is arranged at intervals from the primary height detection component along the conveying direction and is located downstream of the primary height detection component.

[0009] A primary thinning component, located between the primary height detection component and the secondary height detection component along the conveying direction, configured to thin the material area exceeding the first preset height detected by the primary height detection component; and

[0010] The secondary dilution component is located downstream of the secondary height detection component along the conveying direction and is configured to dilute the material area that exceeds the second preset height detected by the secondary height detection component.

[0011] In some embodiments, both the primary height detection component and the secondary height detection component include a plurality of detectors spaced apart along the width direction of the conveying component, and the plurality of detectors are configured to detect material heights at different positions in the width direction.

[0012] In some embodiments, the primary thinning assembly includes a plurality of material guiding components, which are arranged side by side along the width direction of the conveying component, and the material guiding components are configured to thin the material by movement, and the plurality of material guiding components work independently.

[0013] In some embodiments, each material guide component comprises:

[0014] A material guide plate, vertically disposed above the conveying surface of the conveying component; and

[0015] The first driving component is arranged at the bottom of the conveying component, and the output end is connected to the middle area of ​​the material guide plate. The first driving component is configured to drive the material guide plate to rotate.

[0016] In some embodiments, the guide plate is configured to be in a normal material passing state when it is rotated to extend in line with the conveying direction, and to be in a material thinning state when it is rotated to form an angle with the conveying direction.

[0017] In some embodiments, the guide plate is configured to rotate toward a thin side of the material to thin the material.

[0018] In some embodiments, the guide plate is in the shape of an equilateral trapezoid, and the length of the upper base of the trapezoid is greater than the length of the lower base.

[0019] In some embodiments, the secondary dilution component includes:

[0020] a flexible conveying member configured to form a portion of a conveying surface along a conveying direction; and

[0021] Multiple actuators are arranged side by side along the width direction of the conveying component and are arranged below the flexible conveying member. The output ends of the multiple actuators extend independently to partially lift the flexible conveying member through the output ends to dilute the material at the location.

[0022] In some embodiments, the tobacco material conveying system further includes a material rejection mechanism, which is disposed between the primary height detection component and the primary dilution component along the conveying direction and is configured to form a material release channel when activated to allow excess material to leave the conveying component.

[0023] In some embodiments, the material rejection mechanism is configured to be activated when the primary height detection component detects that the cross-sectional area of ​​the material exceeds the cross-sectional area corresponding to the third preset height, and the size of the material release channel is configured to change with the detection information of the secondary height detection component.

[0024] In some embodiments, the material rejection mechanism includes:

[0025] A material slide plate having an inclined section extending downward for materials to slide down;

[0026] a baffle, wherein a first end of the baffle abuts against the inclined section, and a second end of the baffle is rotatably connected to the conveying member; and

[0027] The second driving component is disposed at the bottom of the baffle plate and is configured to drive the baffle plate to rotate so as to selectively form or close a material release channel between the first end of the baffle plate and the inclined section.

[0028] In some embodiments, the tobacco material conveying system further comprises a flow guiding component, which is disposed on the conveying surface of the conveying component and is located upstream of the primary height detection component;

[0029] Among them, the guide component includes at least two rows of guide groups arranged at intervals along the conveying direction, each guide group includes a plurality of guide members arranged at intervals along the width direction of the conveying component, the guide members are used to guide the material to flow to both sides thereof, and the guide members in two adjacent guide groups are staggered along the width direction.

[0030] A second aspect of the present disclosure provides a tobacco production system, comprising: the tobacco material conveying system of the above embodiment.

[0031] The tobacco material conveying system of the disclosed embodiment is provided with a two-stage height detection component during the conveying process of the tobacco material after shredding, and after obtaining the position information and height information of the material being over-height, a two-stage thinning component is correspondingly provided for thinning, so that the tobacco shreds conveyed by the conveying component can be uniform in thickness and flow rate, providing uniform incoming materials for subsequent processes, and can greatly improve the recognition accuracy of subsequent debris recognition devices, avoid misrejection or omission of materials, thereby accurately removing foreign objects in cigarette raw materials and improving the quality of tobacco materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 It is a side view of some embodiments of the smoking material delivery system disclosed in the present invention.

[0034] Figure 2 It is a top view of some embodiments of the smoking material delivery system disclosed in the present invention.

[0035] Figure 3Schematic diagram of the structure of some embodiments of the material rejection mechanism.

[0036] Figure 4 It is a structural diagram of the material lifting and flapping mechanism in the material rejection mechanism.

[0037] Figure 5 Schematic diagrams of the structures of some embodiments of the primary dilution component.

[0038] Figure 6 It is a schematic diagram of the structure of a single material guide unit in the first-stage dilution component.

[0039] Figure 7 Schematic diagrams of the structures of some embodiments of the secondary dilution assembly.

[0040] Description of Reference Numerals

[0041] 1. Conveying components;

[0042] 2. First-level height detection components;

[0043] 3. Material rejection mechanism; 31. Tobacco shreds dropping hopper; 32. Material lifting and flapping mechanism; 321. Second driving component; 322. Baffle; 323. Baffle rotating shaft; 33. Sliding plate;

[0044] 4. Primary dilution component; 41. Material guide plate; 42. First driving component; 43. Rotating shaft; 40. Material guide component;

[0045] 5. Secondary height detection component;

[0046] 6. Secondary dilution assembly; 61. Flexible conveying member; 62. Actuator.

[0047] 7. Flow guide; 8. Controller. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without carrying out creative work are within the scope of protection of the present disclosure.

[0049] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0050] In the description of the present disclosure, it needs to be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific positional relationship.

[0051] The inventors have noticed that existing tobacco production equipment has a problem of poor recognition of tobacco material debris. The main reason is that the existing conveying equipment generally has uneven flow rate and thickness of tobacco when conveying, and the thickness and uniformity of the material cannot be effectively controlled.

[0052] Moreover, the material thinning means before the debris identification equipment in the existing tobacco silk production process has at least the following problems:

[0053] 1. The overall uniformity of the material is poor, with uneven distribution. This problem is common in existing tobacco material conveying equipment. The material cannot be evenly distributed during the dilution process, which affects the accuracy of the subsequent debris identification device of the material, resulting in the material being mistakenly or missed, which in turn increases the workload of operators and affects product quality.

[0054] 2. Insufficient agglomeration processing capacity. Agglomeration is difficult to avoid during material transportation, but the processing capacity of existing equipment is limited. Agglomeration easily hides debris, resulting in the inability of subsequent debris identification devices to accurately identify it. This may cause debris to enter the finished product, which has a negative impact on product quality.

[0055] 3. Lack of means to control the height of materials. The height of materials has a significant impact on the recognition quality and accuracy of debris recognition devices. Most debris recognition devices have certain material thickness requirements. Excessively thick materials may exceed their recognition range, increasing the risk of missed debris recognition. However, existing conveying equipment cannot accurately control the material height according to the requirements of the debris recognition device, limiting the flexibility of the production process.

[0056] Therefore, in order to improve the recognition effect of tobacco material debris, it is necessary to further improve the thickness uniformity of tobacco materials during the transportation process.

[0057] According to this improvement idea, Figures 1 to 7 As shown, the present disclosure provides a tobacco material delivery system, which in some embodiments includes:

[0058] A conveying component 1, configured to convey materials;

[0059] The primary height detection component 2 and the secondary height detection component 5 are arranged above the conveying component 1 and are configured to detect the height of the material. The secondary height detection component 5 is arranged at intervals from the primary height detection component 2 along the conveying direction X and is located downstream of the primary height detection component 2;

[0060] A primary thinning component 4, located between the primary height detection component 2 and the secondary height detection component 5 along the conveying direction X, and configured to thin the material area exceeding the first preset height detected by the primary height detection component 2; and

[0061] The secondary thinning component 6 is located downstream of the secondary height detection component 5 along the conveying direction X, and is configured to thin the material area detected by the secondary height detection component 5 that exceeds the second preset height.

[0062] Among them, the conveying component 1 can be a high-frequency vibration trough, which can have a variable frequency speed regulation function. The high-frequency vibration trough receives the cut tobacco material to achieve the vibration and preliminary material thinning of the tobacco. Alternatively, the conveying component 1 can also be a belt conveyor. The primary height detection component 2 and the secondary height detection component 5 can use photoelectric sensors, grating sensors or ultrasonic sensors, etc., to detect the material height, and when an area with excessive height is detected, the position information of the position along the conveying direction X and the width direction Y of the conveying component 1 can also be sent to the controller 8, and the controller 8 is electrically connected to the primary height detection component 2 and the secondary height detection component 5.

[0063] The primary dilution component 4 is configured to dilute the material area exceeding the first preset height detected by the primary height detection component 2. After the dilution effect of the primary dilution component 4, if the secondary height detection component 5 still detects that there is a material area exceeding the second preset height, the secondary dilution component 6 continues to dilute the material area exceeding the second preset height detected by the secondary height detection component 5. The relationship between the first preset height and the second preset height is not limited.

[0064] This embodiment sets a two-stage height detection component during the process of conveying the tobacco material after shredding, and after obtaining the position information and height information of the material being overheight, sets a two-stage thinning component accordingly for thinning, so that the tobacco conveyed by the conveying component 1 can have a uniform thickness and flow rate, providing uniform incoming materials for subsequent processes, and can greatly improve the recognition accuracy of the subsequent debris recognition device, avoid misrepresentation or missed rejection of materials, thereby accurately removing foreign matter in the cigarette raw materials and improving the quality of the tobacco materials.

[0065] In some embodiments, the primary height detection component 2 and the secondary height detection component 5 each include a plurality of detectors spaced apart along the width direction Y of the conveying component 1 , and the plurality of detectors are configured to detect material heights at different positions along the width direction Y. For example, the plurality of detectors may cover the entire width of the conveying component 1 .

[0066] This embodiment sets a plurality of detectors at different positions along the width direction Y, so as to measure the material height at different width positions of the conveying component 1, and easily and accurately determine the position of the area with high material on the conveying surface in the width direction Y.

[0067] In some embodiments, Figure 5 and Figure 6 As shown, the primary thinning component 4 includes a plurality of material guiding components 40, which are arranged side by side along the width direction Y of the conveying component 1, and the material guiding components 40 are configured to thin the material by movement, and the plurality of material guiding components 40 work independently.

[0068] For example, the controller 8 is configured to determine the material guide component 40 that needs to perform the dilution action according to the position of the material super-high area detected by the primary height detection component 2 in the width direction Y, and determine the first delay time for the material guide component 40 to start performing the material guide action according to the position of the material super-high area detected by the primary height detection component 2 in the conveying direction X. After the first delay time, the material in the super-high area is conveyed to the position of the material guide component 40, and the material guide component 40 performs the dilution action after it is turned on to guide the material at the corresponding position to the position with a low height. After the material guide component 40 performs the material guide action for the first preset time, it returns to the normal material passing position.

[0069] This embodiment sets up multiple material guiding components 40 along the width direction Y, which cooperate with multiple detectors in the first-level height detection component 2 to accurately thin the material in the ultra-high area. Since the multiple material guiding components 40 work independently, when some material guiding components 40 work, it will not affect the material height status of other areas, and can save equipment energy consumption.

[0070] In some embodiments, Figure 6 As shown, each material guide component 40 includes: a material guide plate 41, which is vertically arranged above the conveying surface of the conveying component 1; and a first driving component 42, which is arranged at the bottom of the conveying component 1 and the output end is connected to the middle area of ​​the material guide plate 41, and the first driving component 42 is configured to drive the material guide plate 41 to rotate.

[0071] When any two adjacent guide plates 41 rotate to extend along the width direction Y, there is a gap between the two adjacent guide plates 41 to ensure that the guide plates 41 rotate smoothly along the entire circle without collision, that is, the spacing between adjacent guide plates 41 at least ensures that the guide plates 41 have enough space to complete a 360° rotation around the axis. For example, the first driving component 42 can be a motor or a motor, etc., and the output end of the first driving component 42 is provided with a rotating shaft 43, which extends in the height direction and is connected to the middle area of ​​the guide plate 41 in the horizontal direction. The first driving component 42 can be provided with an encoder to allow the guide plate 41 to stay at a specific station.

[0072] In this embodiment, the material guide plate 41 can be driven to rotate and stir the area with higher materials, so that the excess materials flow to the side, thereby achieving material thinning and uniform thickness. Since the thickness of the material that has not been thinned after shredding varies greatly at different places, and there will be more agglomeration, this method can actively apply force to guide the flow of materials, has a better thinning effect, and can reduce the agglomeration of materials.

[0073] In some embodiments, the guide plate 41 is configured to be in a normal material passing state when it is rotated to extend in line with the conveying direction X, and to be in a material thinning state when it is rotated to form an angle with the conveying direction X.

[0074] In the normal material feeding state, the guide plate 41 is extended along the conveying direction X so that adjacent guide plates 41 form the largest material passing channel to allow the material to pass smoothly. When thinning is required, the material height information of the super-high area detected by the primary height detection component 2 can be used to determine the rotation direction and angle of the guide plate 41. The guide plate 41 rotates toward the thinner side of the material, and the higher the material, the greater the rotation angle is required to disperse the high material to a larger area.

[0075] In some embodiments, the guide plate 41 is configured to rotate toward the thin side of the material to thin the material. Thus, the guide plate 41 can guide the excess material to the thinner areas on both sides.

[0076] In some embodiments, the guide plate 41 is in an equilateral trapezoid, and the upper base length of the trapezoid is greater than the lower base length. This structure can not only allow the material to flow through the area below the inclined side when the guide plate 41 rotates, preventing the material from being too thin at the location of the guide plate 41, but also can loosen the clumped tobacco shreds passing through the "hooking claw" structure formed on both sides under the self-vibration of the conveying component 1 such as a high-frequency vibration trough.

[0077] The primary thinning component 4 of the structure provides a means for treating tobacco clumping, avoiding clumping generated during material transportation and processing. On the one hand, it avoids the possibility that foreign objects hidden in the clumping cannot be accurately identified, which will have a negative impact on product quality in subsequent processes; on the other hand, the loosening of tobacco clumping also ensures the stability of subsequent processes to a certain extent, reduces the risk of wet clumping, and ensures product quality. The clumping and un-clumping function of the tobacco material conveying system can be independent of other modes and can be independently controlled to be turned on or off.

[0078] Specifically, when this function is turned on, the controller 8 will periodically control all the guide plates 41 to perform a 180° rotation after a set delay to prevent the tobacco from being blocked in the "hooking claw" structure and affecting the opening effect.

[0079] In some embodiments, Figure 7 As shown, the secondary dilution assembly 6 includes:

[0080] A flexible conveying member 61, configured to form a portion of the conveying surface along the conveying direction X; and

[0081] Multiple actuators 62 are arranged side by side along the width direction Y of the conveying component 1 and are arranged below the flexible conveying member 61. The output ends of the multiple actuators 62 extend independently to partially lift the flexible conveying member 61 through the output ends to dilute the material at the location.

[0082] Among them, the secondary thinning component 6 is installed in the slot body of the high-frequency vibration slot, which can achieve more accurate thinning after the primary thinning. For example, the flexible conveying member 61 can be an elastic soft cloth, which can be used as a part of the conveying surface of the conveying component 1, and can be parallel to the slot surface of the high-frequency vibration slot to form a part of the slot body, and operate together without affecting the function of the vibration slot. The actuator 62 can be a cylinder, and multiple cylinders can be independently retracted. When the flexible conveying member 61 extends upward at the output end of the cylinder, it can be deformed to protrude from the conveying surface and stay at a specific station.

[0083] In this embodiment, after the primary thinning, the thickness uniformity of the material is improved, and the secondary thinning assembly 6 can further achieve precise thinning. The output end of the actuator 62 extends to deform the flexible conveying member 61 to protrude from the conveying surface, and does not directly apply a stirring force to the material. Instead, when the flexible conveying member 61 partially protrudes, the excessive material is allowed to flow freely to the surroundings, which can minimize the impact on the original distribution state of the material and obtain a better thinning effect.

[0084] In some embodiments, Figure 3 and Figure 4As shown, the tobacco material conveying system further comprises a material rejecting mechanism 3, which is arranged between the primary height detection component 2 and the primary dilution component 4 along the conveying direction X and is configured to form a material release channel when started to allow excess material to leave the conveying component 1.

[0085] For example, the material rejection mechanism 3 is installed in the slot body of the high-frequency vibration slot. When the material rejection mechanism 3 is working, the tobacco material conveying system is in a thickness limiting mode.

[0086] This embodiment can start the material removal mechanism 3 to form a material release channel to allow excess material to leave the conveying component 1 when the overall material being conveyed on the conveying component 1 is too thick. This can improve the recognition accuracy of the subsequent debris recognition device and avoid incorrect or missed rejection of materials, thereby accurately removing foreign matter from cigarette raw materials and improving the quality of tobacco materials.

[0087] Moreover, the material rejection mechanism 3 is arranged upstream of the first-level thinning component 4. When the first-level height detection component 2 detects that the material is overall thick, the excess material is first rejected by the material rejection mechanism 3, and then the uniformity of the material thickness is adjusted by the following two-level thinning components. This can not only ensure the final effect of material thinning, but also avoid the thinning mechanism from working ineffectively.

[0088] In some embodiments, the material rejection mechanism 3 is configured to be activated when the first-level height detection component 2 detects that the cross-sectional area of ​​the material exceeds the cross-sectional area corresponding to the third preset height, and the size of the material release channel is configured to change with the detection information of the second-level height detection component 5.

[0089] In this embodiment, when the first-level height detection component 2 detects that the cross-sectional area of ​​the material exceeds the cross-sectional area corresponding to the third preset height, it means that the material in the current cross-section is not uneven in thickness, but is overall thicker. At this time, the material rejection mechanism 3 is started to form a material release channel to allow excess material to leave the conveying component 1. When the material rejection mechanism 3 is started, a preset initial gap can be formed in the material release channel, and the gap can extend along the width direction Y.

[0090] In this mode, the secondary height detection component 5 can detect in real time the material flow after being removed by the material removal mechanism 3. The controller 8 adjusts the size of the material release channel according to the flow of the material after removal, and further accurately controls the removal accuracy until the material thickness reaches a thickness that can accurately identify impurities.

[0091] In some embodiments, Figure 3 and Figure 4 As shown, the material removal mechanism 3 includes:

[0092] The material slide plate 33 has an inclined section extending downward for materials to slide down;

[0093] a baffle 322, wherein a first end of the baffle 322 abuts against the inclined section, and a second end of the baffle 322 is rotatably connected to the conveying member 1; and

[0094] The second driving component 321 is disposed at the bottom of the baffle 322 and is configured to drive the baffle 322 to rotate so as to selectively form or close a material release channel between the first end and the inclined section of the baffle 322 .

[0095] The material lifting and flapping mechanism 32 may include: a second driving component 321, a baffle 322 and a baffle rotating shaft 323. The first end of the baffle 322 is rotatably connected to the conveying component 1 through the baffle rotating shaft 323, and the second end is provided with a wedge-shaped surface. When the material release channel is closed, the wedge-shaped surface just contacts with the inclined section. The second driving component 321 may be a linear driving mechanism, such as a cylinder or a motor, etc. The linear driving mechanism is inclined and is used to drive the baffle 322 to rotate around the baffle rotating shaft 323 and stay at a specific station. Figure 3 The right side of the diagram is the incoming material direction.

[0096] The material removal mechanism 3 further comprises a tobacco shreds drop hopper 31 , which is arranged below the conveying component 1 , and the materials falling along the sliding plate 33 can directly enter the tobacco shreds drop hopper 31 for collection.

[0097] In this embodiment, the second driving component 321 drives the baffle 322 to rotate, so that the size of the material release channel can be flexibly controlled, so that excess materials can be accurately removed and the control is easy.

[0098] In some embodiments, Figure 2 As shown, the tobacco material conveying system further includes a flow guiding component, which is arranged on the conveying surface of the conveying component 1 and is located upstream of the primary height detection component 2;

[0099] Among them, the guide component includes at least two rows of guide groups arranged at intervals along the conveying direction X, each guide group includes a plurality of guide members 7 arranged at intervals along the width direction Y of the conveying component 1, and the guide members 7 are used to guide the material to flow to both sides thereof, and the guide members 7 in two adjacent guide groups are staggered along the width direction Y.

[0100] For example, the guide member 7 may be V-shaped or W-shaped, with the opening facing the downstream of the conveying component. This embodiment can guide the material to be conveyed evenly.

[0101] In the above embodiments, the tobacco material delivery system of the present application has the following beneficial technical effects:

[0102] First, after cutting, a tobacco thinning system is added to provide very uniform and compact incoming materials for subsequent processes, which can greatly improve the recognition accuracy of subsequent debris recognition devices and avoid mis-rejection or missed rejection of materials.

[0103] Secondly, based on the material super-height position information output by the height detection device and the controller, the precise movement of the independently controlled combined material guide plate and the material leveling cylinder can effectively achieve the precise thinning of materials at any distribution position, effectively improving the probability of debris identification;

[0104] Finally, a method for dealing with tobacco clumping is provided to avoid clumping generated during material transportation and processing. On the one hand, it prevents foreign matter from being hidden in the clumping and cannot be accurately identified, which can have a negative impact on product quality in subsequent processes. On the other hand, the loose opening of tobacco clumping can ensure the stability of subsequent processing to a certain extent, reduce the risk of wet clumping, and ensure product quality.

[0105] Secondly, the present disclosure provides a tobacco production system, including the tobacco material conveying system of the above embodiment. Further, the tobacco production system also includes a shredder and a debris identification and removal device, wherein the shredder is used to shred tobacco leaves, and the debris identification and removal device is arranged downstream of the tobacco material conveying system, and is used to identify foreign matter and impurities in the tobacco material after dilution, and remove them.

[0106] This embodiment adds a tobacco thinning system after the shredding process to solve the problems of poor thinning quality of tobacco debris during transportation after shredding, low flexibility in material height adjustment, and lack of agglomeration treatment methods under existing technical conditions, thereby achieving efficient, stable and precise material thinning effect, while improving the recognition accuracy of the material rejection device to further improve product quality.

[0107] Finally, the present disclosure provides a control method for the tobacco material conveying system based on the above embodiment, comprising:

[0108] Primary detection step: obtaining height information and position information of the material exceeding the first preset height detected by the primary height detection component 2, wherein the position information includes the position along the conveying direction X and the width direction Y;

[0109] Primary dilution step: the primary dilution component 4 dilutes the material area exceeding the first preset height;

[0110] Secondary detection step: obtaining height information and position information of the material exceeding the second preset height detected by the secondary height detection component 5, wherein the position information includes the position along the conveying direction X and the width direction Y;

[0111] Secondary dilution step: The secondary dilution component 6 dilutes the material area exceeding the second preset height.

[0112] Among them, the primary detection step and the secondary detection step detect the material in real time, the primary thinning step is thinned when the material exceeds the first preset height, and if it does not exceed the first preset height in the entire width direction Y, there is no need to perform the primary thinning step; the secondary thinning step is thinned when the material exceeds the second preset height, and if it does not exceed the second preset height in the entire width direction Y, there is no need to perform the secondary thinning step. The position along the conveying direction X and the width direction Y can be obtained by the position of the detector.

[0113] This embodiment sets a two-stage height detection component during the process of conveying the tobacco material after shredding, and after obtaining the position information and height information of the material being overheight, sets a two-stage thinning component accordingly for thinning, so that the tobacco conveyed by the conveying component 1 can have a uniform thickness and flow rate, providing uniform incoming materials for subsequent processes, and can greatly improve the recognition accuracy of the subsequent debris recognition device, avoid misrepresentation or omission of materials, thereby accurately removing foreign matter in the cigarette raw materials and improving the quality of the tobacco materials.

[0114] In some embodiments, the primary thinning assembly 4 includes a plurality of material guide components 40 arranged side by side along the width direction Y, each material guide component 40 includes: a material guide plate 41, which is vertically arranged above the conveying surface of the conveying component 1 and is rotatable around a rotating shaft located in the central area; the primary thinning step includes:

[0115] According to the position information and height information of the material exceeding the first preset height, determining the material guide plate 41 that needs to perform the thinning action, as well as the rotation angle and direction of the material guide plate 41;

[0116] Determine a first delay time for the material guide plate 41 to start performing the material guiding action according to the position information of the material exceeding the first preset height along the conveying direction X;

[0117] After the first delay time, the selected material guide plate 41 is opened to guide the material at the corresponding position to a position with a lower height;

[0118] After the material guiding plate 41 performs the material guiding action for a first preset time, it rotates back to the material passing position where the material guiding plate 41 is parallel to the conveying direction X.

[0119] The greater the material height, the greater the rotation angle of the guide plate 41, and the rotation direction is toward the thinner side of the material on both sides of the guide plate 41. Since the primary height detection component 2 is at a certain distance from the primary thinning component 4, it takes a period of time for the material at the primary height detection component 2 to be transported to the primary thinning component 4, so the guide plate 41 can wait for the first delay time to act, and after the guide plate 41 maintains a specific angle to perform the material guiding action for the first preset time to achieve flattening, it turns back to the normal material passing position where the guide plate 41 is parallel to the conveying direction X.

[0120] The control method of this embodiment enables the tobacco material conveying system to work in a uniform thickness mode, and can drive the guide plate 41 to rotate and stir the area with higher materials, so that the excess materials flow to the side, thereby achieving material thinning and uniform thickness. Since the thickness of the material that has not been thinned after shredding varies greatly at different places, and there will be more agglomeration, this method can guide the flow of materials by actively applying a force, has a better thinning effect, and can reduce the agglomeration of materials. It can not only reduce the working time of the primary thinning component 4, but also ensure the thinning effect.

[0121] In some embodiments, the secondary thinning assembly 6 includes: a flexible conveying member 61, which is configured to form a partial conveying surface along the conveying direction X; a plurality of actuators 62, which are arranged side by side along the width direction Y and are arranged below the flexible conveying member 61; and the secondary thinning steps include:

[0122] According to the position information and height information of the material exceeding the second preset height, determining the actuator 62 that needs to perform the dilution action and the extension length of the output end of the actuator 62;

[0123] Determine a second delay time for the actuator 62 to start performing the material guiding action according to the position information of the material exceeding the second preset height along the conveying direction X;

[0124] After the second delay time, the output end of the selected actuator 62 is extended to a predetermined length, so as to lift up the flexible conveying member 61 at the corresponding position and guide the material to the positions with lower heights on both sides;

[0125] After the actuator 62 performs the material guiding action for a second preset time, the output end retracts to a material passing position where the flexible conveying member 61 is horizontal.

[0126] The greater the material height, the greater the stroke of the output end of the actuator 62, thereby increasing the convex deformation degree of the flexible conveying member 61, so that the thicker material flows to the surrounding. Since the secondary height detection component 5 is at a certain distance from the secondary thinning component 6, it takes a period of time for the material at the secondary height detection component 5 to be transported to the secondary thinning component 6, so the actuator 62 can wait for the second delay time to act, and after the actuator 62 maintains a specific extended length to perform the material guiding action for the second preset time to achieve flattening, it turns back to the normal material passing position where the material guide plate 41 is parallel to the conveying direction X.

[0127] The control method of this embodiment enables the tobacco material conveying system to work in a uniform thickness mode. After the primary dilution, the thickness uniformity of the material is improved, and accurate dilution can be further achieved through the secondary dilution assembly 6. The output end of the actuator 62 extends to deform the flexible conveying member 61 to protrude from the conveying surface. The stirring force is not directly applied to the material, but when the flexible conveying member 61 partially protrudes, the excessive material is allowed to flow freely to the surroundings, which can minimize the impact on the original distribution state of the material and obtain a better dilution effect.

[0128] In some embodiments, the tobacco material conveying system further comprises: a material rejecting mechanism 3, which is arranged between the primary height detection component 2 and the first dilution component along the conveying direction X; and the control method further comprises:

[0129] When the first-level height detection component 2 detects that the cross-sectional area of ​​the material exceeds the cross-sectional area corresponding to the third preset height, the material rejection mechanism 3 is activated to form a material release channel to allow excess material to leave the conveying component 1;

[0130] The size of the material release channel is adjusted according to the detection information of the secondary height detection component 5.

[0131] The control method of this embodiment makes the tobacco material conveying system work in the thickness limiting mode. When the first-level height detection component 2 detects that the cross-sectional area of ​​the material exceeds the cross-sectional area corresponding to the third preset height, it means that the material in the current cross-section is not uneven in thickness, but is thicker overall. At this time, the material removal mechanism 3 is started to form a material release channel to allow excess material to leave the conveying component 1. In this mode, the second-level height detection component 5 can detect the flow rate of the material after being removed by the material removal mechanism 3 in real time, and the controller 8 adjusts the size of the material release channel according to the flow rate of the removed material, and further accurately controls the removal accuracy until the material thickness reaches a thickness that can accurately identify impurities.

[0132] In some embodiments, the primary thinning assembly 4 includes a plurality of material guide components 40 arranged side by side along the width direction Y, each material guide component 40 includes: a material guide plate 41, which is vertically arranged above the conveying surface of the conveying component 1 and is rotatable around a rotating shaft located in the central area, and the material guide plate 41 is in an inverted trapezoidal shape; the control method further includes:

[0133] All the guide plates 41 are periodically rotated 180 degrees to loosen the agglomerated tobacco shreds.

[0134] The control method of this embodiment enables the tobacco material conveying system to work in the agglomeration and deagglomeration mode. The primary thinning component 4 provides a tobacco agglomeration treatment method to avoid agglomeration generated during material transportation and processing. On the one hand, it avoids the possibility that foreign objects hidden in the agglomeration cannot be accurately identified, which will have a negative impact on product quality when entering the subsequent process. On the other hand, the loosening of tobacco agglomerations also ensures the stability of the subsequent process processing to a certain extent, reduces the risk of wet agglomeration, and ensures product quality. The agglomeration and deagglomeration function of the tobacco material conveying system can be independent of other modes and can be independently controlled to be turned on or off.

[0135] In addition, the control method disclosed in the present invention also includes a normal feeding mode. During normal feeding, under the action of the first driving component 42 of the first-level thinning component 4, all the guide plates 41 are in a feeding position horizontal to the conveying direction X, and at the same time, the actuator 62 of the second-level thinning component 6 remains in an inactive state. At this time, the thinning function is not enabled, and the tobacco material can be directly transported from the conveying component 1 into the downstream production process.

[0136] The above are merely exemplary embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A tobacco material delivery system, characterized in that: include: A conveying component (1) is configured to convey materials; A primary height detection component (2) and a secondary height detection component (5) are arranged above the conveying component (1) and are configured to detect the height of the material; the secondary height detection component (5) is arranged at a distance from the primary height detection component (2) along the conveying direction (X) and is located downstream of the primary height detection component (2); A primary thinning component (4), located between the primary height detection component (2) and the secondary height detection component (5) along the conveying direction (X), and configured to thin a material region exceeding a first preset height detected by the primary height detection component (2); and The secondary thinning component (6) is located downstream of the secondary height detection component (5) along the conveying direction (X) and is configured to thin the material area detected by the secondary height detection component (5) that exceeds the second preset height.

2. The tobacco material delivery system according to claim 1, characterized in that: The primary height detection component (2) and the secondary height detection component (5) both comprise a plurality of detectors arranged at intervals along the width direction (Y) of the conveying component (1), and the plurality of detectors are configured to detect material heights at different positions in the width direction (Y).

3. The tobacco material delivery system according to claim 1, characterized in that: The primary thinning component (4) includes a plurality of material guiding components (40), and the plurality of material guiding components (40) are arranged side by side along the width direction (Y) of the conveying component (1). The material guiding components (40) are configured to thin the material by movement, and the plurality of material guiding components (40) work independently.

4. The tobacco material delivery system according to claim 3, characterized in that: Each of the material guiding components (40) comprises: A material guide plate (41) vertically arranged above the conveying surface of the conveying component (1); and The first driving component (42) is arranged at the bottom of the conveying component (1), and the output end is connected to the middle area of ​​the guide plate (41). The first driving component (42) is configured to drive the guide plate (41) to rotate.

5. The tobacco material delivery system according to claim 4, characterized in that: The guide plate (41) is configured to be in a normal material passing state when it is rotated to extend in line with the conveying direction (X), and to be in a material thinning state when it is rotated to form an angle with the conveying direction (X).

6. The tobacco material delivery system according to claim 4, characterized in that: The material guide plate (41) is configured to rotate toward the thin side of the material to spread the material thinly.

7. The tobacco material delivery system according to claim 4, characterized in that: The guide plate (41) is in the shape of an equilateral trapezoid, and the length of the upper base of the trapezoid is greater than the length of the lower base.

8. The tobacco material delivery system according to claim 1, characterized in that: The secondary dilution component (6) comprises: a flexible conveying member (61) configured to form a portion of a conveying surface along the conveying direction (X); and A plurality of actuators (62) are arranged side by side along the width direction (Y) of the conveying component (1) and are arranged below the flexible conveying member (61). The output ends of the plurality of actuators (62) extend independently so as to partially lift up the flexible conveying member (61) through the output ends to spread the material at the location.

9. The tobacco material conveying system according to any one of claims 1 to 8, characterized in that: It also includes a material rejection mechanism (3), which is arranged between the first-level height detection component (2) and the first-level dilution component (4) along the conveying direction (X) and is configured to form a material release channel when activated to allow excess material to leave the conveying component (1).

10. The tobacco material delivery system according to claim 9, characterized in that: The material rejection mechanism (3) is configured to be activated when the primary height detection component (2) detects that the cross-sectional area of ​​the material exceeds the cross-sectional area corresponding to the third preset height, and the size of the material release channel is configured to change according to the detection information of the secondary height detection component (5).

11. The tobacco material delivery system according to claim 9, characterized in that: The material rejection mechanism (3) comprises: A material sliding plate (33) having an inclined section extending downward for materials to slide down; a baffle (322), wherein a first end of the baffle (322) abuts against the inclined section, and a second end of the baffle (322) is rotatably connected to the conveying component (1); and The second driving component (321) is disposed at the bottom of the baffle (322) and is configured to drive the baffle (322) to rotate so as to selectively form or close the material release channel between the first end of the baffle (322) and the inclined section.

12. The tobacco material conveying system according to any one of claims 1 to 8, characterized in that: It also includes a flow guide component, which is arranged on the conveying surface of the conveying component (1) and is located upstream of the primary height detection component (2); The guide component comprises at least two rows of guide groups arranged at intervals along the conveying direction (X), each of the guide groups comprises a plurality of guide members (7) arranged at intervals along the width direction (Y) of the conveying component (1), the guide members (7) being used to guide the material to flow to both sides thereof, and the guide members (7) in two adjacent guide groups are staggered along the width direction (Y).

13. A tobacco production system, characterized in that: include: The tobacco material conveying system according to any one of claims 1 to 12.

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