Production line for sorting tobacco leaves at high speed and control method thereof

Abstract

The invention discloses a production line for sorting tobacco leaves at a high speed and a control method of the production line. The production line comprises a tobacco bale separating and uncovering device, a tobacco leaf dispersing device, a direction adjusting and carding device, a tobacco leaf sorting device and a controller which are arranged in sequence, wherein the controller is electrically connected with all the devices; the controller controls the tobacco bale separating and uncovering device to separate the stacked tobacco leaves into single-layer tobacco leaves and convey the single-layer tobacco leaves to the tobacco leaf dispersing device; the tobacco leaf dispersing device is controlled to separate single-layer tobacco leaves into single tobacco leaves and then convey the single tobacco leaves to the direction adjusting and carding device; the direction-adjusting carding device is controlled to rotate the tobacco leaves until the length direction is parallel to the running direction, and then the tobacco leaves are conveyed to the tobacco leaf sorting device; and the tobacco leaf sorting device is controlled to conduct grading sorting treatment on the tobacco leaves. According to the tobacco bale breaking and grading device, the multiple devices are sequentially connected together to conduct breaking and grading operation on the stacked tobacco bales together, the breaking and grading operation of the tobacco bales is divided into a plurality of steps, and each step is executed by the corresponding device and controlled by the controller in a unified mode, so that the processing actions of all the devices on tobacco leaves form linkage.

Description

Technical Field

[0001] The invention belongs to the field of tobacco equipment, and in particular, relates to a production line for high-speed sorting of tobacco leaves and a control method thereof. Background Art

[0002] Tobacco is an important cash crop, and its planting area is very extensive in my country. In the process of tobacco leaf procurement, the tobacco leaves are usually stacked layer by layer and packaged for transfer and transportation. This means that the tobacco leaves must be broken up before subsequent processing in the cigarette factory.

[0003] Moreover, after the tobacco leaves are split into pieces, they must be graded to ensure uniform quality and to be processed accordingly according to the grade of the tobacco leaves, thereby increasing the economic benefits of tobacco resources.

[0004] In the prior art, the tobacco industry often uses manual selection and grading in the process of threshing and re-drying tobacco leaves. This method relies on the experience of graders to classify different tobacco leaves, which is greatly affected by human factors. The main problems are: a large number of personnel are required, which increases operating costs; the experience and ability of the workers are inconsistent, and the quality of the tobacco leaves after grading has a large deviation. At the same time, due to the constraints of human physiological conditions, the sorting efficiency of tobacco leaves is low, and the sorting quality and accuracy are also low.

[0005] The Chinese invention patent with application number 201310269981.5 discloses a dynamic tobacco leaf selection line. It includes a handle cutting machine, a handle unwinding machine, a vibration table and a leaf moistening machine. The front end of the leaf laying table is provided with a material preparation area, and the rear end is provided with a handle cutting machine. The handle cutting machine is divided into a tobacco leaf selection line and a cigarette handle selection line. The cigarette handle selection line includes a first distributor, a vibration table, a handle unwinding machine, a leaf moistening machine, a third distributor and a collection box in sequence. The tobacco leaf selection line includes a leaf moistening machine, a second distributor and a collection box in sequence. Except for the direct connection between the first distributor, the vibration table and the handle unwinding machine, the sequentially arranged equipment is connected by a conveyor. Multiple groups of leaf laying tables and handle cutting machines are used to mix tobacco leaves from different origins and separate tobacco leaves and cigarette handles. Six groups of tobacco leaf selection conveyors are used to select tobacco leaves of different grades, which effectively solves the problem of difficulty and low efficiency in selecting tobacco leaves of different grades.

[0006] However, the main improvement of the tobacco leaf selection line in the invention is to separate the leaves and the stems of the tobacco leaves and sort them separately. The tobacco leaves are still selected and graded manually in the tobacco leaf conveyor, and the improvement of sorting efficiency and sorting quality is limited. In addition, since the tobacco leaf selection line uses automated equipment at the front end, the tobacco leaf conveying flow rate and speed at the front end of the tobacco leaf selection line greatly exceed the manual processing capacity at the back end, resulting in the thickness and quality of the sorted tobacco leaves being uneven, which seriously affects the effect of tobacco leaf grading and screening.

[0007] In view of this, the present invention is hereby provided. Summary of the Invention

[0008] The object of the present invention is to provide a production line for high-speed sorting of tobacco leaves, so as to realize the industrialization and automation of tobacco leaf grading and sorting, improve the sorting speed and accuracy of tobacco leaves, and meet the purpose of uniform quality of tobacco leaves after sorting.

[0009] Another object of the present invention is to provide a control method for a production line for high-speed sorting of tobacco leaves, so as to realize the tracking of the tobacco leaf flow in the sorting production line of tobacco leaves, improve the coordination of the processing speed of each device for tobacco leaves, and thus greatly improve the efficiency of the sorting production line of tobacco leaves.

[0010] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0011] A production line for high-speed sorting of tobacco leaves includes a tobacco bale separating device, a tobacco leaf dispersing device, an orientation and combing device, a tobacco leaf sorting device arranged in sequence, and a controller electrically connected to each device;

[0012] The controller controls the tobacco bale separating device to disassemble the stacked tobacco leaves into single-layer tobacco leaves and convey them to the tobacco leaf dispersing device; controls the tobacco leaf dispersing device to break the single-layer tobacco leaves into single-piece tobacco leaves and then convey them to the orientation and combing device; controls the orientation and combing device to rotate the tobacco leaves so that the length direction is parallel to the running direction and then convey them to the tobacco leaf sorting device; controls the tobacco leaf sorting device to perform grading and sorting processing on the tobacco leaves.

[0013] Further, a conveyor belt is provided between the tobacco bale separating device and the tobacco leaf dispersing device, and a plurality of the tobacco bale separating devices are arranged in parallel and connected to the conveyor belt at the discharge end.

[0014] Further, a flow control device electrically connected to the controller is arranged between the conveyor belt and the tobacco leaf dispersing device;

[0015] The flow control device at least includes a first conveying section extending obliquely, a second conveying section extending horizontally, and a weight detection device. The low end of the first conveying section extends into the lower part of the conveyor belt, the high end of the first conveying section is connected to the second conveying section, and the outlet end of the second conveying section is directly above the inlet end of the tobacco leaf dispersing device;

[0016] The controller controls the weight detection device to obtain the weight increment of the tobacco leaves entering the first conveying section, and adjusts the feeding speed of the second conveying section according to the weight increment of the tobacco leaves.

[0017] Further, the tobacco leaf dispersing device includes a conveying mechanism, a lifting mechanism and a feeding roller;

[0018] The conveying mechanism is horizontally arranged. The lifting mechanism is connected to the conveying mechanism and extends obliquely upward. The outlet end of the lifting mechanism extends directly above the orientation and carding device. The material pushing roller is located above the conveying surface of the lifting mechanism and can rotate in the direction opposite to the moving direction of the conveying surface of the lifting mechanism.

[0019] Furthermore, the controller adjusts the moving speed of the conveying surface of the lifting mechanism and the rotating speed of the material pushing roller, and controls to disperse the single-layer tobacco leaves into single pieces within the interval duration between two adjacent dismantlings of single-layer tobacco leaves by the tobacco packet separating and uncovering device.

[0020] Furthermore, the material pushing roller includes a first material pushing roller installed in the middle of the length of the lifting mechanism and a second material pushing roller installed at the outlet end of the lifting mechanism;

[0021] The distance between the first material pushing roller and the conveying surface of the lifting mechanism is greater than the distance between the second material pushing roller and the conveying surface of the lifting mechanism, and the controller adjusts the rotating speed of the second material pushing roller to be greater than the rotating speed of the first material pushing roller.

[0022] Furthermore, the lifting mechanism is rotatably connected to the conveying mechanism, and a transition material plate inclined from the lifting mechanism directly above the orientation and carding device is provided at the outlet end of the lifting mechanism, and the inclination angle of the transition material plate is adjusted to be the same as the inclination angle of the lifting mechanism.

[0023] The present invention also provides a production line control method for high-speed sorting of tobacco leaves. The controller controls the processing speed of two adjacent arranged devices for tobacco leaves to gradually increase.

[0024] Furthermore, the gradually increasing of the processing speed for tobacco leaves includes: the controller controls the duration for the tobacco leaf dispersing device to break up the single-layer tobacco leaves into single pieces to be less than the interval duration between two adjacent dismantlings of single-layer tobacco leaves by the tobacco packet separating and uncovering device.

[0025] Furthermore, the controller controls the conveying speed of two adjacent arranged devices for tobacco leaves to gradually increase;

[0026] Preferably, the conveying speed of the orientation and carding device for tobacco leaves is controlled to be greater than the conveying speed of the tobacco leaf dispersing device for tobacco leaves.

[0027] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

[0028] 1. Multiple devices are sequentially connected together to jointly perform the operations of breaking up and grading stacked cigarette packets. The operations of breaking up and grading the cigarette packets are split into several steps, with each step being executed by the corresponding device and uniformly controlled by a controller. This makes the speed of grading cigarette packets into tobacco leaves more efficient and concise, and enables the controller to coordinate and control the actions of each device, so that the processing actions of each device on the tobacco leaves form a linkage in terms of speed.

[0029] 2. The tobacco leaves are transported by a tobacco leaf dispersion device in the previous stage to a direction-adjusting and combing device for combing. A horizontal receiving belt is arranged at the feeding end of the direction-adjusting and combing device to prevent the tobacco leaves from directly flushing into the gap between the differential combing belts when falling from the tobacco leaf dispersion device into the direction-adjusting and combing device due to the height difference between the two devices, which would cause the tobacco leaves to break and reduce the combing effect on the tobacco leaves.

[0030] 3. The controller matches the speeds of processing tobacco leaves between each device, enabling the tobacco leaves to be transported in a loose and thinly spread manner in the production line while maintaining a high-speed conveying state, achieving the high-speed circulation and intelligent grading of the tobacco leaves.

[0031] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0032] The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0033] Figure 1 is a top view schematic diagram of a production line for high-speed sorting of tobacco leaves according to the present invention;

[0034] Figure 2 is a partial front view schematic diagram of a production line for high-speed sorting of tobacco leaves according to the present invention;

[0035] Figure 3 is another partial front view schematic diagram of a production line for high-speed sorting of tobacco leaves according to the present invention;

[0036] Figure 4 is another partial front view schematic diagram of a production line for high-speed sorting of tobacco leaves according to the present invention;

[0037] Figure 5 is a cross-sectional view schematic diagram of a direction-adjusting and combing device according to the present invention.

[0038] Wherein: 10, cigarette packet separating device; 20, tobacco leaf dispersing device; 21, conveying mechanism; 22, lifting mechanism; 23, feeding roller; 24, first feeding roller; 25, second feeding roller; 26, transition material plate; 30, orientation and carding device; 31, horizontal material receiving belt; 32, collecting belt; 33, differential carding mechanism; 34, differential carding belt; 35, driving shaft; 36, driven shaft; 37, speed regulator; 38, driving axle; 39, driving wheel; 40, tobacco leaf sorting device; 50, conveyor belt; 60, flow control device; 61, first conveying section; 62, second conveying section.

[0039] It should be noted that these drawings and the textual descriptions are not intended to limit the scope of the concept of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by reference to specific embodiments. Detailed implementation manners

[0040] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "left", "right", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] As Figure 1 shown, an embodiment of the present invention introduces a production line for high-speed sorting of tobacco leaves.

[0044] The production line includes a cigarette packet separating device 10, a tobacco leaf dispersing device 20, an orientation and carding device 30, a tobacco leaf sorting device 40 arranged in sequence, and a controller electrically connected to each device.

[0045] Among them, the cigarette pack separating device 10 is used to disassemble the stacked tobacco leaves into a single layer. The tobacco leaf dispersing device 20 is arranged in sequence after the discharge end of the cigarette pack separating device 10 and is used to break up the single-layer tobacco leaves into individual pieces.

[0046] The control unit is electrically connected to the cigarette pack separating device 10 and the tobacco leaf dispersing device 20 respectively, and is used to coordinate the processing speed of each device for the tobacco leaves.

[0047] Connect the cigarette pack separating device 10 and the tobacco leaf dispersing device 20 end to end to carry out the breaking-up operation on the stacked cigarette packs. By splitting the breaking-up operation of the cigarette packs into two steps and each step is correspondingly executed by a device, it not only reduces the difficulty of breaking up the cigarette packs but also greatly improves the speed of breaking up the cigarette packs. At the same time, by obtaining the interval duration of the cigarette pack separating device 10 disassembling the single-layer tobacco leaves through the controller to coordinately control the operation of the tobacco leaf dispersing device 20, the processing actions of the two devices form a linkage in terms of speed, so that the tobacco leaves can be fed into the next process smoothly and evenly.

[0048] Furthermore, the cigarette pack separating device 10 includes legs, a lifting mechanism, a bracket, a tobacco pressing mechanism and a clamping jaw mechanism.

[0049] The bracket has a horizontally arranged square frame. The inside of the square frame is hollow and is correspondingly used to place the cigarette packs to be separated.

[0050] Lifting guide rails are arranged on the vertically arranged legs. The bracket is connected to the lifting guide rails through sliders. The lifting mechanism is connected to the bracket and drives the bracket to lift along the lifting guide rails.

[0051] When providing power, the lifting mechanism can select a cylinder, a motor or other driving units, and preferably a cylinder drive.

[0052] The tobacco pressing mechanism is arranged at the left end and / or the right end of the square frame. Preferably, the cigarette pack separating device 10 includes two sets of tobacco pressing mechanisms. The tobacco pressing mechanisms are respectively arranged at the left end and the right end of the square frame of the bracket, and the tobacco pressing mechanisms can reciprocate along the front and rear frames of the square frame.

[0053] The two tobacco pressing mechanisms are respectively arranged at the left and right ends of the square frame, which means that the tobacco pressing mechanisms are located at the left and right ends of the whole square frame. The tobacco pressing mechanisms can be fixed on the left and right side frames, or can be fixed on the front and rear side frames, as long as they are at the left and right ends of the square frame and can make reciprocating movements in the left-right direction along the front and rear frames of the square frame.

[0054] The tobacco pressing mechanism includes a tobacco pressing plate driving device and a tobacco pressing plate. The two tobacco pressing plate driving devices are respectively fixed on the left side frame and the right side frame of the square frame of the bracket. A tobacco pressing plate is connected to the free end of each tobacco pressing plate driving device.

[0055] The pressing plate driving device can be a cylinder, a motor or other linear driving units, preferably driven by a cylinder.

[0056] Translation guides are provided on the front and rear frames of the square frame of the bracket. The two pressing plates of the pressing mechanism can move towards the center of the bracket or retreat to the left or right frame of the square frame along the front and rear sides of the square frame through the translation guides under the drive of the pressing plate driving device, realizing reciprocating translational motion.

[0057] The head of the pressing plate has a number of evenly spaced pins. The rear part of the pin is cylindrical, the front end is conical, and the top of the pin is flat. There is a certain angle between the upper and lower surfaces of the pin, and this shape can make the materials on the upper and lower surfaces of the cigarette pack receive different forces after insertion, which is beneficial to the insertion and pressing of this mechanism.

[0058] The jaw mechanism is arranged at the left end and / or the right end of the bracket. The jaw mechanism includes a clamping device driving unit, an inclined guide rail and a clamping device mounted on the inclined guide rail.

[0059] The clamping device driving unit is fixed at the top of the inclined guide rail and drives the clamping device to slide along the inclined guide rail. The clamping device is located above the pressing mechanism. When separating tobacco leaves, the cigarette pack is pressed by the pressing mechanism, and then the tobacco leaves are separated from above by the clamping device.

[0060] The inclined guide rail is arranged on the bracket. The inclined guide rail extends obliquely upward along the left and right directions of the square frame towards the opposite frame.

[0061] After manually removing the gunny bag of the cigarette pack, it is placed on the cigarette pack separating device 10. The tobacco leaves in the cigarette pack are divided into left and right parts, with the tips of the left and right tobacco leaves facing each other and the tobacco stems stacked outward. When the cigarette pack to be separated runs to the lower position of the cigarette pack separating device 10, that is, when the cigarette pack runs into the square frame, the lifting mechanism descends a certain height according to the set displacement, and the pressing mechanisms on both sides advance, and the pins press the cigarette pack from the top.

[0062] The clamping device driving unit of a set of jaw mechanisms drives the clamping device to move obliquely downward along the inclined guide rail to the right position, the clamping hand acts to clamp the tobacco leaves and stems, and the clamping device driving unit drives the clamping device to move obliquely upward, gradually tearing and separating the clamped tobacco leaves from the stem end to the leaf tip from other adjacent upper and lower tobacco leaves. When the clamping device runs obliquely upward to the top of the inclined guide rail, the clamped tobacco leaves are completely separated from the pressed tobacco leaves. At this time, the clamping hand driving device drives the clamping hand to open, and the separated tobacco leaves freely fall into the lower conveying equipment and are conveyed to the next device.

[0063] At this time, another set of jaw mechanisms starts to work, and the same work is carried out from the other end of the cigarette pack, and the tobacco stems of the tobacco leaves on the other side are clamped to separate the tobacco leaves from other tobacco leaves. At this time, this cigarette pack is called a cigarette pack being separated. This process is repeated to realize the layer-by-layer separation of the cigarette pack.

[0064] In particular, the controller obtains the time interval between two consecutive times when the cigarette pack separating device 10 disassembles a single layer of tobacco leaves, and controls the tobacco leaf dispersing device 20 to separate the single layer of tobacco leaves into single tobacco leaves within the time interval.

[0065] In this embodiment, a plurality of devices are connected together in sequence to jointly break up and grade the stacked cigarette packs, and the breaking up and grading of the cigarette packs are divided into several steps, each of which is executed by a corresponding device and uniformly controlled by a controller, so that the speed of grading the cigarette packs into tobacco leaves is more efficient and concise, and the actions of each device can be coordinated and controlled by the controller, so that the processing actions of each device on the tobacco leaves are linked in speed.

[0066] like Figure 1 , Figure 3 , Figure 4 and Figure 5 In another embodiment, the production line for high-speed sorting of tobacco leaves further comprises a direction adjustment and combing device 30. The direction adjustment and combing device 30 is arranged in sequence after the discharge end of the tobacco leaf dispersing device 20, and is used to rotate the tobacco leaves so that their length direction is gradually parallel to their moving direction.

[0067] The direction adjustment combing device 30 is arranged backward from the discharge end of the tobacco leaf dispersing device 20. The controller is electrically connected to the direction adjustment combing device 30 and controls the direction adjustment combing device 30 to transport tobacco leaves at a speed greater than the speed of the tobacco leaf dispersing device 20 to transport tobacco leaves.

[0068] Specifically, the direction-adjusting combing device 30 includes a horizontal splicing belt 31, a differential combing mechanism 33 and a collecting belt 32. The horizontal splicing belt 31 is located at the material-incoming end of the differential combing mechanism 33, and the collecting belt 32 is located below the differential combing mechanism 33.

[0069] The differential combing mechanism 33 includes a plurality of parallel differential combing belts 34 , and any two adjacent differential combing belts 34 rotate at different speeds. Both sides of each differential combing belt 34 are provided with gaps for tobacco leaves to fall downwards.

[0070] The differential combing mechanism 33 further comprises a driving shaft 38, a driving shaft 35 and a driven shaft 36. One end of the plurality of differential combing belts 34 is sleeved on the driven shaft 36 at intervals, and the other end is sleeved on the driving shaft 35 at intervals.

[0071] The differential combing belt 34 is differentially driven by a speed regulator 37 . The speed regulator 37 includes a driving shaft 38 and a plurality of driving wheels 39 which are sleeved on the driving shaft 35 and respectively drive the differential combing belt 34 .

[0072] The material of the differential carding belt 34 and the surface anti-slip form are not limited. For example, commonly used PVC belts, PU belts, PE belts, various anti-slip belts, synchronous belts, triangular drive belts, steel wires, chains, non-metallic flexible woven belts and other various forms can be used.

[0073] The setting form of the speed difference of the differential carding belt 34 is not limited. For example, forms such as high and low intermittent setting of the transmission speed, periodic setting, single-root gradual increase, and decreasing speed from the middle to both sides can be used.

[0074] In this embodiment, the tobacco leaves are transported to the orientation carding device 30 through the tobacco leaf dispersion device 20 in the previous stage for carding. A horizontal receiving belt 31 is arranged at the feeding end of the orientation carding device 30 to prevent the tobacco leaves from directly flushing into the gap between the differential carding belts 34 when falling from the tobacco leaf dispersion device 20 into the orientation carding device 30 due to the height difference between the two devices, which may cause the tobacco leaves to break and reduce the carding effect on the tobacco leaves.

[0075] Such as Figure 1 and Figure 4 , in another embodiment, the production line for high-speed sorting of tobacco leaves further includes a tobacco leaf sorting device 40. The tobacco leaf sorting devices 40 are arranged in sequence after the discharging end of the orientation carding device 30 for grading and sorting the tobacco leaves.

[0076] The tobacco leaf sorting device 40 is arranged after the discharging end of the orientation carding device 30. The controller is electrically connected to the tobacco leaf sorting device 40 and controls the grading and sorting speed of the tobacco leaf sorting device 40 to be greater than the incoming material speed of the tobacco leaves.

[0077] Such as Figure 1 As shown, in another embodiment of the present invention, a conveyor belt 50 is provided between the cigarette pack separating device 10 and the tobacco leaf dispersion device 20.

[0078] A plurality of the cigarette pack separating devices 10 are arranged in parallel and connected to the conveyor belt 50 at the discharging end.

[0079] Specifically, the conveyor belt 50 extends vertically from the left side and / or the right side of the feeding end of the tobacco leaf dispersion device 20. A plurality of cigarette pack separating devices 10 are connected to the conveyor belt 50 at their discharging ends. And each cigarette pack separating device 10 is arranged in parallel with the tobacco leaf dispersion device 20.

[0080] In this embodiment, the controller matches the processing speeds of the various devices for the tobacco leaves, so that the tobacco leaves can be conveyed in a loose and thinly spread state and also maintained in a high-speed conveying state in the production line, realizing the high-speed circulation and intelligent grading of the tobacco leaves.

[0081] Such as Figure 2As shown in the figure, in another embodiment of the present invention, the production line for high-speed sorting of tobacco leaves further includes a flow control device 60. The flow control device 60 is arranged between the conveyor belt 50 and the tobacco leaf dispersing device 20 and is electrically connected to the controller.

[0082] Specifically, the flow control device 60 at least includes a first conveying section 61 extending obliquely, a second conveying section 62 extending horizontally, and a weight detection device.

[0083] In the production line, the first conveying section 61 of the flow control device 60 is arranged at an angle with the horizontal plane. Moreover, the lower end of the first conveying section 61 extends below the discharge end of the conveyor belt 50, and the upper end of the first conveying section 61 is connected to the second conveying section 62. The outlet end of the second conveying section 62 is directly above the inlet end of the tobacco leaf dispersing device 20.

[0084] In addition, the controller obtains the weight increment of the tobacco leaves entering the first conveying section 61 through the weight detection device and adjusts the feeding speed of the second conveying section 62 according to the weight increment of the tobacco leaves.

[0085] As Figure 2 shown in the figure, in another embodiment of the present invention, a tobacco leaf dispersing device 20 arranged in the production line is introduced.

[0086] Among them, the tobacco leaf dispersing device 20 includes a conveying mechanism 21, a lifting mechanism 22, and a feeding roller 23. The conveying mechanism 21 is arranged horizontally. The lifting mechanism 22 is connected to the conveying mechanism 21 and extends obliquely upward.

[0087] The outlet end of the lifting mechanism 22 extends directly above the orientation and carding device 30. The feeding roller 23 is located above the conveying surface of the lifting mechanism 22 and can rotate in the opposite direction to the moving direction of the conveying surface of the lifting mechanism 22.

[0088] In addition, the controller is electrically connected to the tobacco leaf dispersing device 20 and can obtain and control the speed of the moving structures in the tobacco leaf dispersing device 20. Specifically, the controller adjusts the moving speed of the conveying surface of the lifting mechanism 22 and the rotating speed of the feeding roller 23 to completely disassemble the single-layer tobacco leaves into single-piece tobacco leaves at intervals.

[0089] In another embodiment, the feeding roller 23 includes a first feeding roller 24 installed in the middle of the length of the lifting mechanism 22 and a second feeding roller 25 installed at the outlet end of the lifting mechanism 22.

[0090] The distance between the first feeding roller 24 and the conveying surface of the lifting mechanism 22 is greater than the distance between the second feeding roller 25 and the conveying surface of the lifting mechanism 22. The controller adjusts the rotating speed of the second feeding roller 25 to be greater than the rotating speed of the first feeding roller 24.

[0091] Furthermore, the lifting mechanism 22 is rotatably connected to the conveying mechanism 21. An outlet end of the lifting mechanism 22 is provided with a transition material plate 26 that is inclined upward from the lifting mechanism 22 to directly above the orientation and combing device 30. The inclination angle of the transition material plate 26 is adjusted to be the same as the inclination angle of the lifting mechanism 22.

[0092] According to the usage requirements, the belt of the conveying mechanism 21 can be selected from a flat belt, a boss belt, a metal studded belt, etc. The belt of the lifting mechanism 22 can be provided with a number of partitions at intervals. The belt speeds of the conveying mechanism 21 and the lifting mechanism 22 can be frequency-controlled to adjust the speed of transporting tobacco leaves.

[0093] In this embodiment, the distance between the first material pushing roller 24 and the conveying surface of the lifting mechanism 22 is greater than the distance between the second material pushing roller 25 and the conveying surface of the lifting mechanism 22. Therefore, after the tobacco leaves are transported from the feeding end of the lifting mechanism 22 to the discharging end of the lifting mechanism 22, they can be further thinned and evenly spread. Through the mutual movement of the conveying surface of the lifting mechanism 22 and the material pushing roller 23, the tobacco leaves are loosened and thinned in a high-speed and uniform conveying state, simplifying the structure and control process of the equipment, with high efficiency and low cost.

[0094] The present invention also provides a production line control method for high-speed sorting of tobacco leaves. The production line includes a cigarette packet separating device 10, a tobacco leaf dispersing device 20, an orientation and combing device 30, a tobacco leaf sorting device 40 arranged in sequence, and a controller electrically connected to each device.

[0095] The control method includes: controlling the processing speed of tobacco leaves by two adjacent arranged devices to gradually increase. For example, the controller obtains the weight a1 of the tobacco leaves processed by the current device per unit time, and controls and adjusts the weight a2 of the tobacco leaves processed by the next device per unit time to be greater than a1, coordinating the processing speeds of each device for the tobacco leaves.

[0096] Specifically, in the production line for high-speed sorting of tobacco leaves, the controller first obtains the total weight of the tobacco leaves that the cigarette packet separating device 10 can process within a specific time period, and then sets the speed of dispersing the tobacco leaves of the tobacco leaf dispersing device 20 arranged after the cigarette packet separating device 10 according to the total weight, so that the processing speed of the tobacco leaf dispersing device 20 for the tobacco leaves is greater than the feeding speed.

[0097] In another embodiment, the controller controls the time duration for the tobacco leaf dispersing device to disassemble a single layer of tobacco leaves into single pieces to be less than the interval time duration between two adjacent disassembly operations of a single layer of tobacco leaves by the cigarette packet separating device. The controller obtains the interval time duration between two adjacent disassembly operations of a single layer of tobacco leaves by the cigarette packet separating device 10, and controls the tobacco leaf dispersing device 20 to disassemble a single layer of tobacco leaves into single pieces within the interval time duration.

[0098] Further, the controller controls the conveying speed of tobacco leaves by two adjacent arranged devices to gradually increase. For example, the controller controls the conveying speed of the tobacco leaf aligning and carding device 30 to be greater than that of the tobacco leaf dispersing device 20.

[0099] In this embodiment, the control method collects information of each device on the production line through the controller, and then synchronizes the speeds of each device for processing tobacco leaves, so that the processing actions of each device on the tobacco leaves form a linkage in terms of speed, and can also make the tobacco leaves be conveyed in a relatively flat single-piece state, improving the automation of the sorting process and the accuracy of tobacco leaf grading.

[0100] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content according to the technical solution of the present invention to form equivalent embodiments with equivalent changes, but as long as it does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A production line for high-speed sorting of tobacco leaves, characterized in that, It comprises a cigarette pack separating device (10), a tobacco leaf dispersing device (20), a direction adjustment and combing device (30), a tobacco leaf sorting device (40) which are arranged in sequence, and a controller electrically connected to each device; The controller controls the cigarette pack separating device (10) to separate the stacked tobacco leaves into single-layer tobacco leaves and convey them to the tobacco leaf dispersing device (20); controls the tobacco leaf dispersing device (20) to separate the single-layer tobacco leaves into single tobacco leaves and convey them to the direction-adjusting and combing device (30); controls the direction-adjusting and combing device (30) to rotate the tobacco leaves so that the length direction is parallel to the running direction and convey them to the tobacco leaf sorting device (40); and controls the tobacco leaf sorting device (40) to perform graded and sorted processing on the tobacco leaves.

2. The production line for high-speed sorting of tobacco leaves according to claim 1, wherein A conveyor belt (50) is provided between the cigarette pack separating device (10) and the tobacco leaf dispersing device (20), and a plurality of the cigarette pack separating devices (10) are arranged in parallel with each other and are connected to the conveyor belt (50) at the discharge ends.

3. The production line for high-speed sorting of tobacco leaves according to claim 2, characterized in that, A flow control device (60) electrically connected to the controller is provided between the conveyor belt (50) and the tobacco leaf dispersing device (20); The flow control device (60) comprises at least a first conveying section (61) extending obliquely, a second conveying section (62) extending horizontally, and a weight detection device, wherein the lower end of the first conveying section (61) extends below the conveyor belt (50), the upper end of the first conveying section (61) is connected to the second conveying section (62), and the outlet end of the second conveying section (62) is located directly above the inlet end of the tobacco leaf dispersing device (20); The controller controls the weight detection device to obtain the weight increase of tobacco leaves entering the first conveying section (61), and adjusts the feeding speed of the second conveying section (62) according to the weight increase of the tobacco leaves.

4. A production line for high-speed sorting of tobacco leaves according to any one of claims 1-3, characterized in that, The tobacco leaf dispersing device (20) comprises a conveying mechanism (21), a lifting mechanism (22) and a material dispensing roller (23); The conveying mechanism (21) is arranged horizontally, the lifting mechanism (22) is connected to the conveying mechanism (21) and extends upwardly in an inclined manner, the outlet end of the lifting mechanism (22) extends to directly above the direction adjustment and combing device (30), and the material-discharging roller (23) is located above the conveying surface of the lifting mechanism (22) and can rotate in the opposite direction to the moving direction of the conveying surface of the lifting mechanism (22).

5. A production line for high-speed sorting of tobacco leaves according to claim 4, characterized in that, The controller adjusts the moving speed of the conveying surface of the lifting mechanism (22) and the rotation speed of the material-moving roller (23), and controls the single-layer tobacco leaves to be dispersed into single tobacco leaves within the interval between two consecutive disassembly of the single-layer tobacco leaves by the cigarette pack separating device (10).

6. The production line for high-speed sorting of tobacco leaves according to claim 5, wherein, The material-discharging roller (23) comprises a first material-discharging roller (24) installed in the middle of the length of the lifting mechanism (22) and a second material-discharging roller (25) installed at the outlet end of the lifting mechanism (22); The distance between the first material-dispensing roller (24) and the conveying surface of the lifting mechanism (22) is greater than the distance between the second material-dispensing roller (25) and the conveying surface of the lifting mechanism (22), and the controller adjusts the rotation speed of the second material-dispensing roller (25) to be greater than the rotation speed of the first material-dispensing roller (24).

7. The production line for high-speed sorting of tobacco leaves according to claim 6, wherein, The lifting mechanism (22) is rotatably connected to the conveying mechanism (21). An outlet end of the lifting mechanism (22) is provided with a transition material plate (26) that is inclined upward from the lifting mechanism (22) directly above the orientation and combing device (30). The inclination angle of the transition material plate (26) is adjusted to be the same as the inclination angle of the lifting mechanism (22).

8. A production line control method for high-speed sorting of tobacco leaves as described in any one of claims 1-7, characterized in that, The controller controls the processing speed of tobacco leaves by two adjacent devices arranged in sequence to gradually increase.

9. A production line control method for high-speed sorting of tobacco leaves according to claim 8, characterized in that, The gradually increasing processing speed of the tobacco leaves includes: the controller controls the time for the tobacco leaf dispersing device (20) to break up a single layer of tobacco leaves into single pieces to be less than the interval time between two adjacent disassemblies of a single layer of tobacco leaves by the cigarette packet separating and uncovering device (10).

10. A production line control method for high-speed sorting of tobacco leaves according to claim 8 or 9, characterized in that, The controller controls the conveying speed of tobacco leaves by two adjacent devices arranged in sequence to gradually increase; Preferably, the speed of transporting tobacco leaves by the orientation and combing device (30) is controlled to be greater than the speed of transporting tobacco leaves by the tobacco leaf dispersing device (20).

Images