Device and method for slitting tobacco lamina according to diameters of tobacco stems

Abstract

The invention discloses a device and method for slitting tobacco strips according to the diameters of tobacco stems, the device comprises a tobacco leaf conveying device, a cutting and sweeping integrated device is arranged above the tobacco leaf conveying device, the cutting and sweeping integrated device is used for slitting and sweeping tobacco leaves on the tobacco leaf conveying device, the tobacco leaf conveying device is connected with a tobacco strip conveying device through a tobacco strip gliding channel, and the tobacco strip gliding channel is communicated with the tobacco strip conveying device. The cutting and sweeping integrated device corresponds to the tobacco lamina gliding channel in position, a plurality of tobacco lamina collecting frames are arranged on the tobacco lamina conveying device, and the tobacco lamina gliding channel is used for conveying the cut tobacco lamina to the tobacco lamina collecting frames in a classified mode. According to the device and method for slitting the tobacco lamina according to the diameters of the tobacco stems, the tobacco lamina can be accurately slit according to the diameters of the tobacco stems through the cutting and sweeping integrated device in the tobacco lamina production process, the distribution range of the diameters of the tobacco stems is effectively controlled, and therefore the high-standard requirement of industrial production is met; the cut tobacco strips can fall into different collecting boxes to be classified, and the tobacco strips with specific tobacco stem diameters can be treated conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette production equipment, and more specifically, to a device and method for cutting tobacco into sheets according to tobacco stem diameters. Background Art

[0002] Tobacco strips are an indispensable raw material in the cigarette manufacturing process, and their quality directly affects the final quality of cigarettes. In the cigarette production process, the treatment of tobacco stems has a crucial impact on the quality of tobacco strips. Tobacco stems are the main supporting part of tobacco leaves. Their diameter not only affects the structural integrity of tobacco leaves, but also has a significant impact on the effect of leaf threshing and redrying process. The leaf threshing and redrying process is a key step in cigarette production. The purpose is to make the physical properties of tobacco leaves more uniform by breaking tobacco leaves and stems and removing excess moisture, thereby improving the taste and combustibility of cigarettes. However, at present, the difference in stem diameter in tobacco strips is large, which directly leads to the difficulty in controlling the stem content index in the leaves after the leaf threshing and redrying process. The larger the stem diameter, the worse the physical treatment effect during the leaf threshing and redrying process, and it is difficult to effectively remove or break the large-diameter stems. This not only affects the stability of the stem content index in the leaves, but may also cause tobacco strips to be difficult to handle due to excessively thick stems in the subsequent processing process, ultimately affecting the appearance and quality of the finished cigarettes.

[0003] At present, the production of tobacco strips mainly involves simple head and tail removal of raw tobacco. Although this method can reduce the number of tobacco stems that are too long or too short to a certain extent, the large difference in stem diameters in tobacco strips still leads to large fluctuations in the stem content index after threshing. This uncontrollability directly affects the production efficiency and quality stability of subsequent cigarette products, increases the puncture rate of finished cigarettes, and seriously restricts the industrialization requirements of cigarette production.

[0004] Therefore, there is an urgent need for a device and method for cutting tobacco into sheets according to the diameter of tobacco stems. Summary of the invention

[0005] The object of the present invention is to provide a device and method for cutting tobacco into strips according to stem diameters, so as to solve the above-mentioned problems in the prior art. When the raw tobacco is conveyed, the stem diameters in the raw tobacco can be automatically identified and the tobacco strips can be automatically cut according to the diameter sizes. After cutting, the tobacco strips can fall into different collection boxes for classification, so as to facilitate the processing of tobacco strips containing specific stem diameters.

[0006] The present invention provides a device for cutting tobacco leaves according to the diameter of tobacco stems, which includes: a tobacco conveying device for conveying tobacco leaves, a cutting and sweeping device is arranged above the tobacco conveying device, the cutting and sweeping device is used to cut and sweep the tobacco leaves on the tobacco conveying device, the tobacco conveying device is connected to the tobacco conveying device through a tobacco leaf sliding channel, and the cutting and sweeping device corresponds to the position of the tobacco leaf sliding channel, a plurality of tobacco leaf collecting frames are arranged on the tobacco leaf conveying device, and the tobacco leaf sliding channel is used to classify and transfer the cut tobacco leaves to the tobacco leaf collecting frames.

[0007] As described above, the device for cutting tobacco into sheets according to the diameter of tobacco stems, wherein, preferably, the tobacco leaves are laid flat on the tobacco leaf conveying device; the inclination angle of the descending channel is 30 o -60 o ; The number of the tobacco leaf collection frames is consistent with the number of tobacco leaf cut sections.

[0008] As described above, the device for cutting tobacco leaves according to the diameter of tobacco stems, wherein preferably, the tobacco leaf conveying device includes a first support frame with adjustable height, a belt is provided on the first support frame, and the running speed of the tobacco leaf conveying device, the cutting and cleaning speed of the cutting and sweeping device and the running speed of the tobacco leaf conveying device are matched.

[0009] As described above, the device for cutting tobacco into sheets according to the diameter of tobacco stems, wherein preferably, the tobacco leaf conveying device includes a driving chain, and a support plate is provided on the outer side of the driving chain in a vertical direction, and the support plate is fixed to the driving chain by a fixed splint, and the fixed splint is provided on the outer side of both ends of the driving chain in a vertical direction, and the fixed splint adopts a U-shaped structure to fix the driving chain and the support plate as a whole, and a plurality of grooves with equal spacing are opened on the support plate; guard plates are provided on both sides of the tobacco leaf conveying device.

[0010] As described above, the device for cutting tobacco into sheets according to the diameter of tobacco stems, wherein preferably, the cutting and sweeping device includes a cutting and sweeping workbench, on which a tobacco sheet cleaning device and a tobacco leaf cutting device are provided, wherein the cutting and sweeping workbench is fixed above the tobacco leaf conveying device by four legs, and side panels are provided at the top ends of two opposite legs in the vertical direction, and each side panel is fixed to the corresponding leg by a fixing block, and each leg adopts a retractable structure for adjusting the height of the cutting and sweeping workbench; the two side panels are connected by two fixed shafts, and a cutting and sweeping transmission belt and a first sliding shaft are provided between the two side panels.

[0011] The device for cutting tobacco into sheets according to the diameter of tobacco stems as described above, wherein, preferably, the tobacco sheet cleaning device is located on the left side of the tobacco leaf cutting device, the tobacco sheet cleaning device is fixed by a second support frame, and two first sliding sleeves are symmetrically arranged on the lower surface of the upper fixed plate of the second support frame, and the two first sliding sleeves are symmetrically distributed along the cutting and sweeping transmission belt, the first sliding sleeve is positioned in coordination with the first sliding shaft, a first transmission motor is arranged on the upper surface of the upper fixed plate of the second support frame, the cutting and sweeping transmission belt is located below the second support frame and is connected to the first transmission motor, the first transmission motor cooperates with the cutting and sweeping transmission belt to realize belt transmission, and the cutting and sweeping transmission belt can reciprocate left and right along the first sliding shaft; a second locking device is arranged at a position corresponding to the cutting and sweeping transmission belt on the second support frame , used for tensioning the cutting and sweeping transmission belt; a first telescopic cylinder is arranged at the center position of the upper surface of the lower fixed plate of the second supporting frame, and the first telescopic cylinder is connected to the first fixed frame by threads below, and the second sliding shaft is connected to the two sides above the first fixed frame by threads. The first telescopic cylinder is used to drive the first fixed frame to move up and down in the vertical direction, and a cleaning plate is detachably connected to the bottom of the first fixed frame, and the cleaning plate adopts a soft hair structure; a first fixed bracket is arranged on the upper right side of the second supporting frame, and the other end of the first fixed bracket is fixedly connected to the first camera, and the first camera is used to judge the relative position of the first camera, the tobacco leaf conveying device and the cut tobacco leaves in real time through a visual recognition system, and feed back to the first transmission motor to control the tobacco leaf cleaning device to move back and forth left and right to realize the cleaning of the cut tobacco leaves.

[0012] The device for cutting tobacco into sheets according to the diameter of tobacco stems as described above, wherein, preferably, the tobacco leaf cutting device is arranged on the right side of the cutting and sweeping integrated workbench, and the tobacco leaf cutting device includes a third support frame, and two second sliding sleeves are symmetrically arranged along the lower side of the upper end surface of the third support frame, and the two second sliding sleeves are symmetrically distributed along the cutting and sweeping transmission belt, and the second sliding sleeve is fixed to the lower bottom surface of the fixed plate on the third support frame, and the second sliding sleeve is positioned in cooperation with the first sliding shaft, and a second transmission motor is arranged on the upper surface of the upper fixed plate of the third support frame, and the second transmission motor and the cutting and sweeping transmission belt are meshed and driven by a gear belt, and the cutting and sweeping transmission belt can reciprocate left and right along the first sliding shaft, and a third locking device is arranged at a position on the third support frame corresponding to the cutting and sweeping transmission belt, which is used to tighten the cutting and sweeping transmission belt; the third support frame A second telescopic cylinder is provided at the center position of the upper surface of the lower fixed plate, a second fixed frame is threadedly connected to the bottom of the second telescopic cylinder, a third sliding shaft is threadedly connected to the two sides above the second fixed frame, the second telescopic cylinder is used to drive the second fixed frame to move up and down in the vertical direction, a cutter is detachably connected to the bottom of the second fixed frame, laser positioning transmitters are symmetrically provided on both sides of the second fixed frame for real-time monitoring of the groove position between the cutter and the support plate, a second fixed frame is provided at the upper right corner of the third support frame, a second camera is provided at the other end of the second fixed frame, the second camera is used to judge the left-right and up-down relative positions of the second camera, the tobacco conveying device and the tobacco to be cut in real time through a visual recognition system, and feed back to the second transmission motor to control the up-down and left-right reciprocating movement of the tobacco cutting device to achieve tobacco cutting.

[0013] The present invention also provides a method for cutting tobacco sheets according to tobacco stem diameters using the above device, which comprises the following steps:

[0014] Laying the tobacco leaves to be cut flat on the tobacco leaf conveying device so that the tobacco leaf conveying device drives the tobacco leaves to move forward;

[0015] When the tobacco leaves move below the cutting and sweeping device, the cutting and sweeping device is used to cut the tobacco leaves into sections and clean the cut tobacco leaves;

[0016] After cutting, the tobacco leaves enter the tobacco leaf sliding channel and automatically slide into the tobacco leaf collection frame by gravity, completing the classification and collection of tobacco leaves with the current tobacco stem diameter;

[0017] The cutting and sweeping device is reset, and the tobacco leaf conveying device drives the next tobacco leaf collection frame forward to the position of the tobacco downward sliding channel, repeating the steps of segmented cutting, sweeping and classified collection of tobacco leaves to complete the cutting of tobacco leaves of the next size until all tobacco leaves are cut according to the preset stem diameter.

[0018] The method for cutting tobacco leaves according to stem diameter as described above, wherein preferably, the tobacco leaves to be cut are laid flat on a tobacco leaf conveying device so that the tobacco leaf conveying device drives the tobacco leaves to move forward, specifically comprising:

[0019] The tobacco leaves to be cut are laid flat on the supporting plate of the tobacco leaf conveying device and placed in the center. Driven by the driving chain, the tobacco leaves move forward along the supporting plate.

[0020] When the tobacco leaves move below the cutting and sweeping device, the cutting and sweeping device is used to cut the tobacco leaves into sections and clean the cut tobacco leaves, which specifically includes:

[0021] The second camera installed on the tobacco leaf cutting device automatically scans the contour of the tobacco leaf and the diameter of the tobacco stem, and cuts the thickness position according to the set diameter. When the tobacco stem diameter position in the tobacco leaf to be cut is reached, the driving device of the tobacco leaf conveying device is feedback-controlled to stop the tobacco leaf at a preset position.

[0022] The laser positioning transmitter installed on the cutting and sweeping device sends a signal to determine whether the tobacco leaf is in the middle groove position of the leaf support plate. If it is not in the groove position, the driving device of the tobacco leaf conveying device is controlled to make fine adjustments to ensure that the cutter can pass through the groove of the leaf support plate when cutting the tobacco leaf;

[0023] The second telescopic cylinder moves to control the cutter to move downward to complete the segmented cutting of the tobacco leaves;

[0024] After the cutting is completed, the second telescopic cylinder retracts, the second transmission motor drives the tobacco leaf cutting device to move rightward as a whole, and the first transmission motor drives the tobacco leaf cleaning device to move rightward as a whole synchronously to the top of the cut tobacco leaf, and the first camera is used to determine whether the tobacco leaf cleaning device is in place;

[0025] If the smoke sheet cleaning device is not in place, the smoke sheet cleaning device moves to a preset position under the action of the first telescopic cylinder, and is driven by the first transmission motor to move leftward, and the smoke sheet cleaning device is driven by the cleaning plate to complete the cleaning of the cut smoke sheet.

[0026] The method for cutting tobacco sheets according to stem diameter as described above, wherein preferably, the cut tobacco sheets enter the tobacco sheet sliding channel and automatically slide into the tobacco sheet collection frame by gravity to complete the classification and collection of tobacco sheets of the current stem diameter, specifically includes:

[0027] After being cut, the tobacco leaves are moved into the tobacco leaf sliding channel driven by the cleaning plate, and automatically slide into the tobacco leaf collection frame by gravity, completing the classification and collection of tobacco leaves of the current tobacco stem diameter.

[0028] The present invention provides a device and method for cutting tobacco sheets according to stem diameters. In the production process of tobacco sheets, the integrated cutting and sweeping device can accurately cut tobacco sheets according to stem diameters, effectively controlling the distribution range of stem diameters, thereby meeting the high standards of industrial production, improving the effect of leaf beating and re-roasting technology, reducing the stem content index in leaves, and improving the quality of finished cigarettes. After cutting, the tobacco sheets can fall into different collection boxes for classification, which is convenient for processing tobacco sheets containing specific stem diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0030] Figure 1 A schematic diagram of the three-dimensional structure of the device for cutting tobacco slices according to tobacco stem diameter provided by the present invention;

[0031] Figure 2 A top view of a device for cutting tobacco sheets according to tobacco stem diameter provided by the present invention;

[0032] Figure 3 A schematic diagram of the structure of a support plate device for cutting tobacco slices according to tobacco stem diameter provided by the present invention;

[0033] Figure 4 A schematic diagram of the structure of a cutting and sweeping device for cutting tobacco sheets according to the diameter of tobacco stems provided by the present invention;

[0034] Figure 5 A top view of a tobacco leaf cleaning device for cutting tobacco leaves according to tobacco stem diameters provided by the present invention;

[0035] Figure 6 A schematic structural diagram of a tobacco leaf cleaning device for cutting tobacco leaves according to tobacco stem diameters provided by the present invention;

[0036] Figure 7 A schematic structural diagram of a tobacco leaf cutting device for cutting tobacco leaves according to tobacco stem diameter provided by the present invention;

[0037] Figure 8 A flow chart of an embodiment of a method for cutting tobacco into strips according to tobacco stem diameter provided by the present invention.

[0038] Description of the accompanying drawings: 1-tobacco sheet conveying device, 2-tobacco leaf conveying device, 3-tobacco leaf, 4-cutting and sweeping integrated device, 5-tobacco sheet sliding channel, 6-tobacco sheet collecting frame, 11-first supporting frame, 21-driving chain, 22-leaf supporting plate, 23-fixed splint, 24-guard plate, 41-cutting and sweeping integrated workbench, 42-tobacco sheet cleaning device, 43-tobacco leaf cutting device, 411-support leg, 412-fixed block, 413-side plate, 414-fixed shaft, 415-first sliding shaft, 416-cutting and sweeping transmission belt, 421-second supporting frame, 422-first sliding sleeve, 4 23-first transmission motor, 424-second locking device, 425-first telescopic cylinder, 426-second sliding shaft, 427-first fixed frame, 428-cleaning plate, 429-first fixed bracket, 4210-first camera, 431-third supporting frame, 432-second sliding sleeve, 433-second transmission motor, 434-second locking device, 435-second telescopic cylinder, 436-third sliding shaft, 437-second fixed frame, 438-laser positioning transmitter, 439-cutter, 4310-second fixed bracket, 4311-second camera. DETAILED DESCRIPTION

[0039] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0040] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprises" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When a specific component is described as being connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components but have an intermediate component.

[0042] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0043] 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.

[0044] like Figure 1-Figure 7 As shown, the device for cutting tobacco leaves according to the diameter of tobacco stems provided in this embodiment includes: a tobacco leaf conveying device 2 for conveying tobacco leaves 3, a cutting and sweeping device 4 is arranged above the tobacco leaf conveying device 2, and the cutting and sweeping device 4 is used to cut and sweep the tobacco leaves on the tobacco leaf conveying device 2, the tobacco leaf conveying device 2 is connected to the tobacco leaf conveying device 1 through a tobacco leaf sliding channel 5, and the cutting and sweeping device 4 corresponds to the position of the tobacco leaf sliding channel 5, and a plurality of tobacco leaf collecting frames 6 are arranged on the tobacco leaf conveying device 1, and the tobacco leaf sliding channel 5 is used to classify and transfer the cut tobacco leaves to the tobacco leaf collecting frames 6.

[0045] The tobacco leaves 3 are laid flat on the tobacco leaf conveying device 2; the downward passage 5 has an inclination angle of 30 o -60 o The number of the tobacco leaf collecting frames 6 is consistent with the number of tobacco leaf cutting sections. It should be noted that the present invention does not specifically limit the inclination angle of the descending channel 5, and the inclination angle of the descending channel 5 is adjustable.

[0046] Furthermore, the tobacco leaf conveying device 1 adopts belt conveying. Specifically, the tobacco leaf conveying device 1 includes a first support frame 11 with adjustable height, so that the height of the tobacco leaf conveying device 1 can be adjusted through the first support frame 11. A belt is arranged on the first support frame 11. The running speed of the tobacco leaf conveying device 1, the cutting and cleaning speed of the integrated cutting and sweeping device 4 and the running speed of the tobacco leaf conveying device 2 are matched and adjusted through a control system.

[0047] Furthermore, the tobacco conveying device 2 adopts chain drive. Specifically, the tobacco conveying device 2 includes a driving chain 21, and a support plate 22 is arranged on the outer side of the driving chain 21 in a vertical direction. The support plate 22 is fixed to the driving chain 21 through a fixed clamp 23. The fixed clamp 23 is arranged on the outer side of both ends of the driving chain 21 in a vertical direction, and the fixed clamp 23 adopts a U-shaped structure to fix the driving chain 21 and the support plate 22 as a whole. The support plate 22 is provided with a plurality of grooves with equal spacing; guard plates 24 are arranged on both sides of the tobacco conveying device 2, and the length and height of the guard plates 24 are adjustable to prevent the tobacco leaves 3 from falling during the transportation process.

[0048] Furthermore, the cutting and sweeping device 4 comprises a cutting and sweeping workbench 41, on which a tobacco leaf cleaning device 42 and a tobacco leaf cutting device 43 are arranged, wherein the cutting and sweeping workbench 41 is fixed above the tobacco leaf conveying device 2 by four legs 411, and the top ends of two opposite legs 411 are provided with side panels 413 in the vertical direction, and each side panel 413 is fixed to the corresponding leg 411 by a fixing block 412, and each leg 411 adopts a retractable structure for adjusting the height of the cutting and sweeping workbench 41; the two side panels 413 are connected by two fixed shafts 414, and a cutting and sweeping transmission belt 416 and a first sliding shaft 415 are arranged between the two side panels 413. The two side panels 413 are fixedly connected to the fixed shaft 414, the first sliding shaft 415 and the cutting and sweeping transmission belt 416, and are used to support the entire cutting and sweeping workbench 41.

[0049] Furthermore, the tobacco leaf cleaning device 42 is located on the left side of the tobacco leaf cutting device 43, and the tobacco leaf cleaning device 42 is fixed by a second support frame 421. Two first sliding sleeves 422 are symmetrically arranged on the lower surface of the upper fixed plate of the second support frame 421, and the two first sliding sleeves 422 are symmetrically distributed along the cutting and sweeping transmission belt 416. The first sliding sleeves 422 are matched with the first sliding shaft 415 for positioning. A first transmission motor 423 is arranged on the upper surface of the upper fixed plate of the second support frame 421. The cutting and sweeping transmission belt 416 is located below the second support frame 421 and is connected to the first transmission motor 423. The first transmission motor 423 cooperates with the cutting and sweeping transmission belt 416 to realize belt transmission. The cutting and sweeping transmission belt 416 can reciprocate left and right along the first sliding shaft 415. A second locking device 424 is arranged at a position corresponding to the cutting and sweeping transmission belt 416 on the second support frame 421, which is used to tighten the cutting and sweeping transmission belt 416 to ensure the belt transmission efficiency. rate; a first telescopic cylinder 425 is arranged at the center position of the upper surface of the lower fixed plate of the second support frame 421, and a first fixed frame 427 is connected to the bottom of the first telescopic cylinder 425 by threads, and second sliding shafts 426 are connected to the top and bottom of the first fixed frame 427 by threads. The first telescopic cylinder 425 is used to drive the first fixed frame 427 to move up and down in the vertical direction, and a cleaning plate 428 is detachably connected to the bottom of the first fixed frame 427, and the cleaning plate 428 adopts a soft fur structure to avoid rigid collision with the support plate 22; a first fixed bracket 429 is arranged at the upper right corner of the second support frame 421, and a first camera 4210 is fixedly connected to the other end of the first fixed bracket 429, and the first camera 4210 is used to judge the relative positions of the first camera 4210, the tobacco conveying device 2 and the cut tobacco leaves in real time through a visual recognition system, and feed back to the first transmission motor 423 to control the left and right reciprocating movement of the tobacco leaf cleaning device 42 to realize the cleaning of the cut tobacco leaves.

[0050] Furthermore, the tobacco leaf cutting device 43 is arranged on the right side of the cutting and sweeping integrated workbench 41, and the tobacco leaf cutting device 43 includes a third support frame 431 to fix the overall frame, and two second sliding shaft sleeves 432 are symmetrically arranged along the lower side of the upper end surface of the third support frame 431, and the two second sliding shaft sleeves 432 are symmetrically distributed along the cutting and sweeping transmission belt 416, and the second sliding shaft sleeve 432 is fixed on the lower bottom surface of the fixed plate of the third support frame 431, and the second sliding shaft sleeve 432 is symmetrically arranged with the first sliding shaft 41 5, a second transmission motor 433 is arranged on the upper surface of the upper fixed plate of the third support frame 431, and the second transmission motor 433 is engaged with the cutting and sweeping transmission belt 416 through a gear belt transmission, and the cutting and sweeping transmission belt 416 can reciprocate left and right along the first sliding shaft 415, and a third locking device 434 is arranged at a position corresponding to the cutting and sweeping transmission belt 416 on the third support frame 431, which is used to tighten the cutting and sweeping transmission belt 416 to ensure the belt transmission efficiency; the center position of the upper surface of the lower fixed plate of the third support frame 431 A second telescopic cylinder 435 is provided, a second fixing frame 437 is connected to the bottom of the second telescopic cylinder 435 by threads, and third sliding shafts 436 are connected to the top and bottom of the second fixing frame 437 by threads. The second telescopic cylinder 435 is used to drive the second fixing frame 437 to move up and down in the vertical direction. A cutter 439 is detachably connected to the bottom of the second fixing frame 437. Laser positioning transmitters 438 are symmetrically provided on both sides of the second fixing frame 437. The laser positioning transmitters 438 are used in pairs for real-time monitoring of the A second fixed bracket 4310 is arranged on the upper right side of the third support frame 431 at the groove position between the cutter 439 and the support plate 22, and a second camera 4311 is arranged on the other end of the second fixed bracket 4310. The second camera 4311 is used to judge the left-right and up-down relative positions of the second camera 4311, the tobacco conveying device 2 and the tobacco leaves 3 to be cut in real time through a visual recognition system, and feed back to the second transmission motor 433 to control the up-down and down-left-right reciprocating movement of the tobacco cutting device 43 to realize the cutting of tobacco leaves.

[0051] The device for cutting tobacco sheets according to stem diameter provided in the embodiment of the present invention can accurately cut tobacco sheets according to stem diameter through the integrated cutting and sweeping device during the production process of tobacco sheets, effectively controlling the distribution range of stem diameter, thereby meeting the high standards of industrial production, improving the effect of leaf beating and re-roasting process, reducing the stem content in leaves, and improving the quality of finished cigarettes; the cut tobacco sheets can fall into different collection boxes for classification, which is convenient for processing tobacco sheets containing specific stem diameters.

[0052] like Figure 8As shown, the method for cutting tobacco into sheets according to tobacco stem diameter provided in this embodiment comprises the following steps in actual implementation:

[0053] Step S1, laying the tobacco leaves 3 to be cut flat on the tobacco conveying device 2, so that the tobacco conveying device 2 drives the tobacco leaves 3 to move forward.

[0054] Specifically, the tobacco leaves 3 to be cut are laid flat on the leaf support plate 22 of the tobacco leaf conveying device 2 and placed in the center. Driven by the driving chain 21 , the tobacco leaves 3 move forward along the leaf support plate 22 .

[0055] Step S2: When the tobacco leaves 3 move below the integrated cutting and sweeping device 4, the integrated cutting and sweeping device 4 is used to cut the tobacco leaves 3 into sections and clean the cut tobacco leaves.

[0056] In one embodiment of the device and method for cutting tobacco slices according to tobacco stem diameter of the present invention, step S2 may specifically include:

[0057] Step S21, automatically scan the contour of the tobacco leaves and the diameter of the tobacco stems through the second camera 4311 installed on the tobacco leaf cutting device 43, cut the thickness position according to the set diameter, and when the diameter position of the tobacco stems in the tobacco leaves to be cut is reached, feedback control is performed on the driving device of the tobacco leaf conveying device 2 to make the tobacco leaves 3 stop at the preset position.

[0058] Step S22, the laser positioning transmitter 438 installed on the cutting and sweeping device 4 sends a signal to determine whether the tobacco leaf 3 is in the middle groove position of the leaf support plate 22. If it is not in the groove position, the driving device of the tobacco leaf conveying device 2 is controlled to perform fine adjustment to ensure that the cutter 439 can pass through the groove of the leaf support plate 22 when cutting the tobacco leaf 3.

[0059] When the cutter 439 cuts the tobacco leaves 3, it can pass through the groove of the leaf support plate 22, thereby avoiding the cutter from hitting the tobacco leaves.

[0060] Step S23, the second telescopic cylinder 435 is actuated to control the cutter 439 to move downward, thereby completing the segmented cutting of the tobacco leaves 3.

[0061] Step S24, after the cutting is completed, the second telescopic cylinder 435 retracts, the second transmission motor 433 drives the tobacco leaf cutting device 43 to move to the right as a whole, and the first transmission motor 423 drives the tobacco leaf cleaning device 42 to move to the right as a whole synchronously, reaching just above the cut tobacco leaves, and the first camera 4210 is used to determine whether the tobacco leaf cleaning device 42 is in place.

[0062] Step S25, if the smoke sheet cleaning device 42 is not in place, the smoke sheet cleaning device 42 moves to a preset position under the action of the first telescopic cylinder 425, and is driven by the first transmission motor 423 to move leftward, and the smoke sheet cleaning device 42 completes the cleaning of the cut smoke through the drive of the cleaning plate 428.

[0063] Step S3: the cut tobacco leaves enter the tobacco leaf sliding channel 5 and automatically slide into the tobacco leaf collecting frame 6 by gravity, thereby completing the classification and collection of tobacco leaves of the current tobacco stem diameter.

[0064] Specifically, the cut tobacco leaves are moved into the tobacco leaf sliding channel 5 by the cleaning plate 428, and automatically slide into the tobacco leaf collecting frame 6 by gravity, thereby completing the classified collection of tobacco leaves of the current tobacco stem diameter.

[0065] Step S4, the cutting and sweeping device 4 is reset, and the tobacco leaf conveying device 1 drives the next tobacco leaf collection frame 6 to move forward to the position of the tobacco downward sliding channel 5, and repeats the tobacco leaf segmentation cutting, sweeping and classification collection steps (i.e., step S2-step S3) to complete the cutting of tobacco leaves 3 of the next size until all tobacco leaves 3 are cut according to the preset stem diameter.

[0066] The method for cutting tobacco sheets according to stem diameter provided in the embodiment of the present invention can accurately cut tobacco sheets according to stem diameter through the integrated cutting and sweeping device during the production process of tobacco sheets, effectively controlling the distribution range of stem diameter, thereby meeting the high standards of industrial production, improving the effect of leaf beating and re-roasting process, reducing the stem content index in leaves, and improving the quality of finished cigarettes; the cut tobacco sheets can fall into different collection boxes for classification, which is convenient for processing tobacco sheets containing specific stem diameters.

[0067] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0068] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A device for cutting tobacco into sheets according to the diameter of tobacco stems, characterized in that: include: A tobacco leaf conveying device for conveying tobacco leaves, a cutting and sweeping device is arranged above the tobacco leaf conveying device, the cutting and sweeping device is used to cut and sweep the tobacco leaves on the tobacco leaf conveying device, the tobacco leaf conveying device is connected to the tobacco leaf conveying device through a tobacco leaf sliding channel, and the cutting and sweeping device corresponds to the position of the tobacco leaf sliding channel, a plurality of tobacco leaf collecting frames are arranged on the tobacco leaf conveying device, and the tobacco leaf sliding channel is used to classify and transfer the cut tobacco leaves to the tobacco leaf collecting frames.

2. The device for cutting tobacco into sheets according to stem diameter according to claim 1, characterized in that: The tobacco leaves are laid flat on the tobacco leaf conveying device; the inclination angle of the descending channel is 30 o -60 o ; The number of the tobacco leaf collection frames is consistent with the number of tobacco leaf cut sections.

3. The device for cutting tobacco into sheets according to stem diameter according to claim 1, characterized in that: The tobacco leaf conveying device comprises a first support frame with adjustable height, on which a belt is arranged, and the running speed of the tobacco leaf conveying device, the cutting and sweeping speed of the integrated cutting and sweeping device and the running speed of the tobacco leaf conveying device are matched.

4. The device for cutting tobacco into sheets according to stem diameter according to claim 1, characterized in that: The tobacco conveying device includes a driving chain, and a supporting plate is arranged on the outer side of the driving chain in a vertical direction. The supporting plate is fixed to the driving chain through a fixing splint. The fixing splint is arranged on the outer side of both ends of the driving chain in a vertical direction, and the fixing splint adopts a U-shaped structure to fix the driving chain and the supporting plate as a whole. A plurality of grooves with equal spacing are opened on the supporting plate; guard plates are arranged on both sides of the tobacco conveying device.

5. The device for cutting tobacco into sheets according to stem diameter according to claim 4, characterized in that: The integrated cutting and sweeping device includes an integrated cutting and sweeping workbench, on which a tobacco leaf cleaning device and a tobacco leaf cutting device are arranged, wherein the integrated cutting and sweeping workbench is fixed above the tobacco leaf conveying device by four legs, and side panels are arranged at the top ends of two opposite legs in the vertical direction, and each side panel is fixed to the corresponding leg by a fixing block, and each leg adopts a retractable structure for adjusting the height of the integrated cutting and sweeping workbench; the two side panels are connected by two fixed shafts, and a cutting and sweeping transmission belt and a first sliding shaft are arranged between the two side panels.

6. The device for cutting tobacco into sheets according to stem diameter according to claim 5, characterized in that: The tobacco leaf cleaning device is located on the left side of the tobacco leaf cutting device, and the tobacco leaf cleaning device is fixed by a second support frame. Two first sliding sleeves are symmetrically arranged on the lower surface of the upper fixed plate of the second support frame, and the two first sliding sleeves are symmetrically distributed along the cutting and sweeping transmission belt. The first sliding sleeve is matched with the first sliding shaft for positioning, and a first transmission motor is arranged on the upper surface of the upper fixed plate of the second support frame. The cutting and sweeping transmission belt is located below the second support frame and is connected to the first transmission motor. The first transmission motor cooperates with the cutting and sweeping transmission belt to realize belt transmission, and the cutting and sweeping transmission belt can reciprocate left and right along the first sliding shaft; a second locking device is arranged at a position corresponding to the cutting and sweeping transmission belt on the second support frame, which is used to tighten the cutting and sweeping transmission belt; A first telescopic cylinder is arranged at the center position of the upper surface of the lower fixed plate of the second support frame, and a first fixed frame is connected to the bottom of the first telescopic cylinder by threads, and second sliding shafts are connected to the two sides above the first fixed frame by threads. The first telescopic cylinder is used to drive the first fixed frame to move up and down in the vertical direction, and a cleaning plate is detachably connected to the bottom of the first fixed frame, and the cleaning plate adopts a soft-hair structure; a first fixed bracket is arranged on the upper right side of the second support frame, and a first camera is fixedly connected to the other end of the first fixed bracket, and the first camera is used to judge the relative position of the first camera, the tobacco conveying device and the cut tobacco leaves in real time through a visual recognition system, and feed back to the first transmission motor to control the left and right reciprocating movement of the tobacco leaf cleaning device to realize the cleaning of the cut tobacco leaves.

7. The device for cutting tobacco into sheets according to stem diameter according to claim 5, characterized in that: The tobacco leaf cutting device is arranged on the right side of the cutting and sweeping integrated workbench, and the tobacco leaf cutting device includes a third support frame, and two second sliding sleeves are symmetrically arranged along the lower side of the upper end surface of the third support frame, and the two second sliding sleeves are symmetrically distributed along the cutting and sweeping transmission belt, and the second sliding sleeve is fixed to the lower bottom surface of the fixed plate on the third support frame, and the second sliding sleeve is positioned in cooperation with the first sliding shaft, and a second transmission motor is arranged on the upper surface of the upper fixed plate of the third support frame, and the second transmission motor and the cutting and sweeping transmission belt are meshed and driven by a gear belt, and the cutting and sweeping transmission belt can reciprocate left and right along the first sliding shaft, and a third locking device is arranged at a position corresponding to the cutting and sweeping transmission belt on the third support frame, which is used to tighten the cutting and sweeping transmission belt; a third locking device is arranged at the center position of the upper surface of the lower fixed plate of the third support frame There is a second telescopic cylinder, a second fixed frame is connected to the bottom of the second telescopic cylinder by threads, and a third sliding shaft is connected to the top and bottom of the second fixed frame by threads. The second telescopic cylinder is used to drive the second fixed frame to move up and down in the vertical direction. A cutter is detachably connected to the bottom of the second fixed frame, and laser positioning transmitters are symmetrically arranged on both sides of the second fixed frame for real-time monitoring of the groove position between the cutter and the support plate. A second fixed bracket is arranged on the upper right side of the third support frame, and a second camera is arranged on the other end of the second fixed bracket. The second camera is used to judge the left-right and up-down relative positions of the second camera, the tobacco conveying device and the tobacco to be cut in real time through a visual recognition system, and feed back to the second transmission motor to control the up-down and left-right reciprocating movement of the tobacco cutting device to achieve tobacco cutting.

8. A method for cutting tobacco sheets according to tobacco stem diameter using the device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Laying the tobacco leaves to be cut flat on the tobacco leaf conveying device so that the tobacco leaf conveying device drives the tobacco leaves to move forward; When the tobacco leaves move below the cutting and sweeping device, the cutting and sweeping device is used to cut the tobacco leaves into sections and clean the cut tobacco leaves; After cutting, the tobacco leaves enter the tobacco leaf sliding channel and automatically slide into the tobacco leaf collection frame by gravity, completing the classification and collection of tobacco leaves with the current tobacco stem diameter; The cutting and sweeping device is reset, and the tobacco leaf conveying device drives the next tobacco leaf collection frame forward to the position of the tobacco downward sliding channel, repeating the steps of segmented cutting, sweeping and classified collection of tobacco leaves to complete the cutting of tobacco leaves of the next size until all tobacco leaves are cut according to the preset stem diameter.

9. The method for cutting tobacco into strips according to stem diameter according to claim 8, characterized in that: The step of laying the tobacco leaves to be cut flat on the tobacco leaf conveying device so that the tobacco leaf conveying device drives the tobacco leaves to move forward specifically includes: The tobacco leaves to be cut are laid flat on the supporting plate of the tobacco leaf conveying device and placed in the center. Driven by the driving chain, the tobacco leaves move forward along the supporting plate. When the tobacco leaves move below the cutting and sweeping device, the cutting and sweeping device is used to cut the tobacco leaves into sections and clean the cut tobacco leaves, which specifically includes: The second camera installed on the tobacco leaf cutting device automatically scans the contour of the tobacco leaf and the diameter of the tobacco stem, and cuts the thickness position according to the set diameter. When the tobacco stem diameter position in the tobacco leaf to be cut is reached, the driving device of the tobacco leaf conveying device is feedback-controlled to stop the tobacco leaf at a preset position. The laser positioning transmitter installed on the cutting and sweeping device sends a signal to determine whether the tobacco leaf is in the middle groove position of the leaf support plate. If it is not in the groove position, the driving device of the tobacco leaf conveying device is controlled to make fine adjustments to ensure that the cutter can pass through the groove of the leaf support plate when cutting the tobacco leaf; The second telescopic cylinder moves to control the cutter to move downward to complete the segmented cutting of the tobacco leaves; After the cutting is completed, the second telescopic cylinder retracts, the second transmission motor drives the tobacco leaf cutting device to move rightward as a whole, and the first transmission motor drives the tobacco leaf cleaning device to move rightward as a whole synchronously to the top of the cut tobacco leaf, and the first camera is used to determine whether the tobacco leaf cleaning device is in place; If the smoke sheet cleaning device is not in place, the smoke sheet cleaning device moves to a preset position under the action of the first telescopic cylinder, and is driven by the first transmission motor to move leftward, and the smoke sheet cleaning device is driven by the cleaning plate to complete the cleaning of the cut smoke sheet.

10. The method for cutting tobacco into strips according to stem diameter according to claim 8, characterized in that: The cut tobacco leaves enter the tobacco leaf sliding channel and automatically slide into the tobacco leaf collection frame by gravity, completing the classification and collection of tobacco leaves with the current tobacco stem diameter, specifically including: After being cut, the tobacco leaves are moved into the tobacco leaf sliding channel driven by the cleaning plate, and automatically slide into the tobacco leaf collection frame by gravity, completing the classification and collection of tobacco leaves of the current tobacco stem diameter.

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