Tobacco shred cutting device

Abstract

The utility model relates to the field of tobacco leaf raw material sample manufacturing, in particular to a cut tobacco cutting device, which is characterized in that two cutting rollers are rotatably connected with a support plate along two axial ends of the cutting rollers, and saw-toothed cutting knife lines are arranged on the cutting rollers, extend along the axial directions of the cutting rollers and are arranged at intervals along the circumferential directions of the cutting rollers; the cutting knife lines of the two cutting rollers can be meshed with each other, the two cutting rollers are connected through the transmission unit, one cutting roller is driven by the driving unit to rotate, transmission is conducted to the other cutting roller through the transmission unit, and the two cutting rollers rotate oppositely. The tobacco raw materials entering the space between the two cutting rollers are cut under the action of relative rotation and meshing of the two cutting rollers, the tobacco raw materials are cut to generate tobacco shreds which are bent and wound, the cutting knife lines extend in the axial direction of the cutting rollers, and the lengths of the generated tobacco shreds are equal and are close to the actual production standard, so that the production efficiency is improved, and the production cost is reduced. And the matching degree of the cigarette laboratory leaf group formula design and the finished cigarette is improved.

Description

Technical Field

[0001] The utility model relates to the field of tobacco leaf raw material sample preparation, in particular to a tobacco shred cutting device. Background Art

[0002] During the tobacco production and processing process, in order to ensure that the cigarette products designed in the laboratory and the cigarettes mass-produced on the production line remain basically consistent in terms of tobacco structure, shape, sensory quality, etc., it is necessary to first design the cigarette leaf group formula in the laboratory, and then produce cigarettes in the cigarette factory according to the design plan after sensory quality evaluation.

[0003] Since the tobacco produced by the production line of the cigarette factory is in a curved and twisted shape, the shredding mechanism used by the cigarette factory is large in size and consumes a lot of energy, which is not suitable for application in the laboratory. In the prior art, the laboratory shredding generally adopts a blade-type shredder, which uses the blade to reciprocate up and down to cut the shreds. The shredded shape is a single strip, not a curved and twisted shape, which leads to a large difference between the tobacco shape and structure of the laboratory-rolled cigarettes and the finished cigarettes, and the tobacco filling value and the sensory quality of the cigarettes change accordingly, thus affecting the matching degree between the laboratory leaf group formula design of the cigarette and the finished cigarettes. Utility Model Content

[0004] One purpose of the utility model is to provide a tobacco cutting device, which can make the cut tobacco into a curved and wound shape.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A tobacco cutting device, comprising:

[0007] A frame, the frame comprising two support plates, the two support plates being spaced apart;

[0008] A cutting unit, wherein the cutting unit comprises two cutting rollers distributed along a first horizontal direction, wherein the cutting rollers are provided with a plurality of cutting knife lines spaced around the circumference of the cutting rollers, wherein the cutting knife lines extend axially along the cutting rollers in a zigzag shape, wherein both ends of the cutting rollers are rotatably connected to the two support plates respectively, wherein the cutting knife lines on the two cutting rollers can mesh with each other, and wherein the first horizontal direction is perpendicular to the axial direction of the cutting rollers;

[0009] A transmission unit, through which the two cutting rollers are connected;

[0010] A driving unit is used to drive one of the cutting rollers to rotate, and to make the cutting roller drive the other cutting roller to rotate through the transmission unit.

[0011] Furthermore, it also includes a material cleaning unit, which can clean the tobacco raw materials remaining on the cutting roller.

[0012] Furthermore, the cleaning unit comprises a cleaning brush installed on the frame, and each cutting roller is provided with the cleaning brush on the side facing away from the other cutting roller, and the cutting knife pattern is located between the two ends of the cleaning brush along the axial direction of the cutting roller.

[0013] Furthermore, the cleaning unit also includes a mounting piece corresponding to the cleaning brush one by one, and the two ends of the mounting piece extending along the axial direction of the cutting roller are respectively connected to the two support plates, and the cleaning brush is correspondingly arranged between the mounting piece and the cutting roller.

[0014] Furthermore, a limiting protrusion is provided on one of the support plate and the mounting member, and a limiting hole is provided on the other one, and the limiting protrusion can be slidably passed through the limiting hole along the vertical direction, or the limiting protrusion can be slidably passed through the limiting hole along the circumference of the cutting roller, and the limiting protrusion can be fixed at any position of the limiting hole.

[0015] Furthermore, two axial ends of any cutting roller are rotatably connected to the two support plates via two bearings respectively.

[0016] Furthermore, it also includes:

[0017] A feeding unit is a feeding funnel, and both ends of the feeding unit along the axial direction of the cutting roller are connected to the two support plates, and the lower end opening of the feeding unit is arranged just above the gap between the two cutting rollers.

[0018] Furthermore, both ends of the feeding unit along the axial direction of the cutting roller are provided with downwardly opening limit grooves, and the two support plates are inserted into the two limit grooves one by one and abut against the bottom walls of the limit grooves in the vertical direction.

[0019] Furthermore, it also includes:

[0020] A material receiving box, wherein the two cutting rollers and the two supporting plates enclose a receiving space, wherein the receiving space is located below the cutting rollers, and wherein an inlet and outlet are formed in the receiving space in the first horizontal direction, and the material receiving box can enter and exit the receiving space through the inlet and outlet.

[0021] Furthermore, a handle is provided at one end of the material receiving box in the first horizontal direction.

[0022] Beneficial effects:

[0023] The utility model proposes a tobacco cutting device, in which two cutting rollers are rotatably connected to a support plate at both ends along the axial direction of the cutting rollers, and a sawtooth-shaped cutting knife pattern is arranged on the cutting roller, the cutting knife pattern extends along the axial direction of the cutting roller, and is arranged at intervals along the circumference of the cutting roller, and the cutting knife patterns of the two cutting rollers can mesh with each other, and the two cutting rollers are connected by a transmission unit, and one of the cutting rollers is driven to rotate by the driving unit, and the transmission is transmitted to the other cutting roller through the transmission unit, and the two cutting rollers rotate towards each other, so that the tobacco raw material entering between the two cutting rollers is cut under the action of the relative rotation and meshing of the two cutting rollers, and the tobacco shreds generated by the cutting of the tobacco raw material are in a curved and winding shape, and the cutting knife pattern is extended along the axial direction of the cutting roller, so that the lengths of the generated tobacco shreds are equal, which is close to the actual production standard, and improves the matching degree between the leaf group formula design of the cigarette laboratory and the finished cigarette. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a tobacco cutting device provided in an embodiment of the utility model.

[0025] Among them: 1. frame; 11. support plate; 2. cutting unit; 21. cutting roller; 22. support shaft; 3. transmission unit; 31. gear; 4. drive unit; 5. feeding unit; 51. limiting groove; 6. cleaning unit; 61. cleaning brush; 62. mounting parts; 7. receiving box. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0028] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The tobacco produced by the production line of the cigarette factory is in a curved and twisted shape, but the shredding mechanism used by the cigarette factory is bulky and energy-intensive, and is not suitable for use in the laboratory. In the prior art, laboratory shredding generally uses a blade-type shredder, which uses the blade to reciprocate up and down to cut the shreds. The shredded shape is a single strip, not a curved and twisted shape, which causes the tobacco shreds of the laboratory-rolled cigarettes to differ greatly from the finished cigarettes in terms of shredded shape and structure, and the shredded tobacco filling value and the sensory quality of the cigarettes change accordingly, thus affecting the matching degree between the laboratory leaf group formula design of the cigarette and the finished cigarettes.

[0031] Based on the above problems, this embodiment provides a tobacco cutting device that can be used to cut tobacco raw materials for laboratory use to simulate the shape of tobacco produced by a cigarette factory production line and improve the closeness between experimental samples and finished cigarettes.

[0032] Please refer to Figure 1The tobacco cutting device provided in this embodiment includes a frame 1, a cutting unit 2, a transmission unit 3 and a driving unit 4. The frame 1 includes two support plates 11, and the two support plates 11 are arranged at intervals. The cutting unit 2 includes two cutting rollers 21 distributed along a first horizontal direction. The cutting roller 21 is provided with a plurality of cutting knife patterns arranged at intervals around the circumference of the cutting roller 21. The cutting knife patterns extend axially along the cutting roller 21 in a serrated shape. The two ends of the cutting roller 21 are respectively rotatably connected to the two support plates 11. The cutting knife patterns on the two cutting rollers 21 can mesh with each other. The first horizontal direction is perpendicular to the axial direction of the cutting roller 21. The two cutting rollers 21 are connected through the transmission unit 3. One of the cutting rollers 21 is driven to rotate by the driving unit 4, and is transmitted to the other cutting roller 21 through the transmission unit 3, so that the two cutting rollers 21 rotate towards each other, and the cutting knife patterns on the two cutting rollers 21 are meshed with each other to cut the tobacco raw material entering between the two cutting rollers 21, so that the tobacco shreds produced by cutting the tobacco raw material are in a curved and winding form.

[0033] Since the production line of a cigarette factory generally cuts tobacco raw materials into equal-sized tobacco raw material slices and then cuts them into shreds, the lengths of the cut tobacco shreds are all equal. In this embodiment, the cutting knife marks are extended along the axial direction of the cutting roller 21 to control the lengths of the produced tobacco shreds to be equal, thereby further reducing the difference between the tobacco shreds morphology and structure of the cigarettes rolled in the laboratory and the finished cigarettes, and improving the matching degree between the tobacco laboratory leaf group formula design and the finished cigarettes. In addition, the tobacco shred cutting device provided in this embodiment has a simple structure, is compact and light, and requires much less energy consumption than the shredder used in the production line of a cigarette factory, and can be suitable for laboratory operating conditions.

[0034] For further information, please refer to Figure 1 Since the tobacco raw materials themselves have low density and light weight, a portion of the tobacco raw materials are easily adhered to the cutting roller 21 during the cutting process. In order to clean the tobacco raw materials remaining on the cutting roller 21 due to adhesion, the tobacco cutting device provided in this embodiment also includes a cleaning unit 6, which can separate the tobacco raw materials remaining on the cutting roller 21 from the cutting roller 21.

[0035] For further information, please refer to Figure 1 In order to improve the working efficiency, the cleaning unit 6 includes a cleaning brush 61 installed on the frame 1. Each cutting roller 21 is provided with a cleaning brush 61 on the side facing away from the other cutting roller 21, and the cutting knife pattern is located between the two ends of the cleaning brush 61 along the axial direction of the cutting roller 21. Each cutting roller 21 is equipped with a cleaning brush 61, and the cleaning brush 61 is used to separate the tobacco raw materials remaining on the outer surface of the cutting roller 21 from the cutting roller 21, and the two cutting rollers 21 are cleaned at the same time. By setting the cutting knife pattern between the two ends of the cleaning brush 61 along the axial direction of the cutting roller 21, the existence of cleaning dead angles is avoided, so that the cleaning brush 61 can completely remove the tobacco raw materials remaining on the outer surface of the cutting roller 21, thereby improving the cleaning efficiency.

[0036] Specifically, in this embodiment, the cleaning unit 6 further includes a mounting member 62 corresponding to the cleaning brush 61, and the two ends of the mounting member 62 extending along the axial direction of the cutting roller 21 are respectively connected to the two support plates 11, and the cleaning brush 61 is correspondingly arranged between the mounting member 62 and the cutting roller 21. During the cutting rotation process, the cleaning brush 61 is in continuous contact with the outer surface of the cutting roller 21, so that the two cleaning units 6 are used to separate the residual tobacco raw materials on the two cutting rollers 21 from the cutting rollers 21, and cutting and cleaning are performed simultaneously, thereby improving the working efficiency.

[0037] In other embodiments, the cleaning unit 6 may also be an airflow device, which uses airflow to blow off the tobacco material remaining on the outer surface of the cutting roller 21 so that the tobacco material is separated from the cutting roller 21 .

[0038] For further information, please refer to Figure 1 In order to completely clean the tobacco raw materials remaining on the outer surface of the cutting roller 21, the support plate 11 is provided with a limiting hole (not shown in the figure), and the two ends of the mounting member 62 extending along the axial direction of the cutting roller 21 form limiting protrusions (not shown in the figure), and the limiting protrusions are slidably arranged in the limiting hole in the vertical direction, and the limiting protrusions can be fixed at any position of the limiting hole. During the cutting process, the tobacco raw materials remaining on the outer surface of the cutting roller 21 are not completely cleaned only by the rotation of the cutting roller 21 relative to the cleaning brush 61. By adjusting the limiting protrusions, the mounting member 62 drives the cleaning brush 61 to slide relative to the cutting roller 21, and the tobacco raw materials remaining thereon are swept off, so that the tobacco raw materials are completely cleaned.

[0039] In other embodiments, the limiting protrusion can also be slidably arranged in the limiting hole along the circumference of the cutting roller 21. When the limiting hole is an arc-shaped hole, the cleaning brush 61 can remove the tobacco raw materials remaining on the outer surface of the cutting roller 21 along the circumference of the cutting roller 21. The range of the cleaning brush 61 that can be driven by adjusting the limiting protrusion is larger, and the cleaning efficiency is higher. In other embodiments, the limiting protrusion can be set on the support plate 11, and the two ends of the mounting member 62 extending along the axial direction of the cutting roller 21 form limiting holes.

[0040] For further information, please refer to Figure 1 Along the axial direction of the cutting roller 21, two bearings are arranged on one side of the support plate 11, one end of each of the two cutting rollers 21 is connected to a support shaft 22, and the two support shafts 22 are rotatably connected to the support plate 11 through two bearings in a one-to-one correspondence. By arranging the bearings, the friction generated by the cutting roller 21 during the rotation process is reduced, the rotation is smoother, and the energy consumption is reduced.

[0041] For further information, please refer to Figure 1The transmission unit 3 includes two mutually meshing gears 31, and the two gears 31 are respectively fixedly sleeved on the two support shafts 22. The two gears 31 and the two cutting rollers 21 are located on the side of one support plate 11 facing away from the other support plate 11. A flat key is provided on the support shaft 22 to fix the gears 31 relative to the support shaft 22. The driving unit 4 is used to rotate one of the support shafts 22, driving the gears 31 on the support shaft 22 to rotate, and the two gears 31 are meshed to enable the two cutting rollers 21 to rotate toward each other. In other embodiments, the two gears 31 and the two cutting rollers 21 can be arranged on the same side of a support plate 11.

[0042] For further information, please refer to Figure 1 The driving unit is a hand wheel, and the hand wheel is rotated to drive the support shaft 22 to rotate. Specifically, in order to save effort in operation, the diameter of the hand wheel is selected to be equal to the length of the support plate 11 along the axial direction of the vertical cutting roller 21.

[0043] Exemplarily, in order to avoid interference with another support shaft 22 during the rotation of the hand wheel, one of the support shafts 22 passes through the gear 31 and is connected to the hand wheel.

[0044] Specifically, to prevent the handwheel from rotating relative to the support shaft 22, a fixing protrusion is provided at one end of the support shaft 22 passing through the gear 31, and a fixing hole is provided on the handwheel, which is a non-circular hole that is plugged into and matched with the fixing protrusion, thereby improving the connection stability between the handwheel and the support shaft 22 and preventing the handwheel from rotating relative to the support shaft 22. In other embodiments, a fixing hole may be provided at one end of the support shaft 22 passing through the gear 31, and a fixing protrusion may be provided on the handwheel.

[0045] In other embodiments, the driving unit 4 may be a driving motor, and an output end of the driving motor is connected to one of the supporting shafts 22 to drive the supporting shaft 22 to rotate.

[0046] For further information, please refer to Figure 1 In order to facilitate the operator to put in tobacco raw materials, the tobacco cutting device provided in this embodiment further includes a feeding unit 5, which is a feeding funnel. The two ends of the feeding unit 5 along the axial direction of the cutting roller 21 are connected to the two support plates 11, and the lower end of the feeding unit 5 is arranged just above the gap between the two cutting rollers 21. By adopting the feeding unit 5 in the form of a feeding funnel, it is convenient for the operator to put in tobacco raw materials, avoiding the operator from directly contacting the cutting roller 21 when putting in tobacco raw materials, and improving the safety of operation.

[0047] For further information, please refer to Figure 1The two ends of the feed unit 5 along the axial direction of the cutting roller 21 are both provided with limit grooves 51 opening downward, and the two support plates 11 are inserted into the two limit grooves 51 one by one and abut against the bottom wall of the limit grooves 51 in the vertical direction. The feed unit 5 is mounted on the support plate 11, so that the feed unit 5 and the support plate 11 are detachably connected. When the tobacco cutting device provided by this embodiment needs to be moved, the feed unit 5 can be removed and moved to a suitable place and then assembled again, which is convenient for moving and assembling the device.

[0048] For further information, please refer to Figure 1 In order to collect the cut tobacco, the cut tobacco cutting device provided in this embodiment further includes a material receiving box 7, which is arranged directly below the two cutting rollers 21, so that the cut tobacco naturally falls into the material receiving box 7 under the force of gravity. Specifically, in order to completely collect the cut tobacco, the projections of the two cutting rollers 21 on the horizontal plane completely fall into the opening of the material receiving box 7, so that the cut tobacco can completely fall from the cutting rollers 21 into the opening of the material receiving box 7.

[0049] For further information, please refer to Figure 1 In order to improve the installation flexibility of the material receiving box 7, two cutting rollers 21 and two supporting plates 11 are enclosed to form a receiving space, and the receiving space is located below the cutting rollers 21. The receiving space is formed with an inlet and outlet in the first horizontal direction, and the material receiving box 7 can enter and exit the receiving space through the inlet and outlet. When the tobacco raw materials fill the material receiving box 7 or the cutting of the tobacco raw materials is completed, the material receiving box 7 can be taken out of the receiving space to take out the tobacco shreds therein.

[0050] Specifically, in order to facilitate the material receiving box 7 to enter and exit the accommodating space, a handle is provided at one end of the material receiving box 7 in the first horizontal direction. The handle is provided to facilitate the material receiving box 7 to be pulled out of the accommodating space, and to facilitate the operator to take out the cut tobacco, thereby avoiding the operator from contacting the cutting roller 21, improving the safety of the operation, and facilitating the movement and assembly of the device.

[0051] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A tobacco cutting device, characterized in that: include: A frame (1), the frame (1) comprising two support plates (11), the two support plates (11) being arranged at an interval; A cutting unit (2), the cutting unit (2) comprising two cutting rollers (21) distributed along a first horizontal direction, the cutting rollers (21) being provided with a plurality of cutting knife lines arranged at intervals around the circumference of the cutting rollers (21), the cutting knife lines extending axially along the cutting rollers (21) in a sawtooth shape, the two ends of the cutting rollers (21) being rotatably connected to the two support plates (11), the cutting knife lines on the two cutting rollers (21) being able to mesh with each other, and the first horizontal direction being perpendicular to the axial direction of the cutting rollers (21); A transmission unit (3), wherein the two cutting rollers (21) are connected via the transmission unit (3); A driving unit (4), the driving unit (4) being used to drive one of the cutting rollers (21) to rotate, and to enable the cutting roller (21) to drive the other cutting roller (21) to rotate via the transmission unit (3).

2. The tobacco cutting device according to claim 1, characterized in that: It also comprises a cleaning unit (6), and the cleaning unit (6) can clean the tobacco raw materials remaining on the cutting roller (21).

3. The tobacco cutting device according to claim 2, characterized in that: The cleaning unit (6) comprises a cleaning brush (61) mounted on the frame (1), and each cutting roller (21) is provided with the cleaning brush (61) on a side facing away from the other cutting roller (21), and the cutting knife pattern is located between the two ends of the cleaning brush (61) along the axial direction of the cutting roller (21).

4. The tobacco cutting device according to claim 3, characterized in that: The cleaning unit (6) further comprises a mounting member (62) corresponding one-to-one to the cleaning brush (61); the two ends of the mounting member (62) extending along the axial direction of the cutting roller (21) are respectively connected to the two support plates (11); and the cleaning brush (61) is correspondingly arranged between the mounting member (62) and the cutting roller (21).

5. The tobacco cutting device according to claim 4, characterized in that: A limiting protrusion is provided on one of the support plate (11) and the mounting member (62), and a limiting hole is provided on the other one. The limiting protrusion can be slidably inserted into the limiting hole along the vertical direction, or the limiting protrusion can be slidably inserted into the limiting hole along the circumference of the cutting roller (21), and the limiting protrusion can be fixed at any position of the limiting hole.

6. The tobacco cutting device according to claim 1, characterized in that: The two axial ends of any one of the cutting rollers (21) are rotatably connected to the two support plates (11) via two bearings respectively.

7. The tobacco cutting device according to any one of claims 1 to 6, characterized in that: Also includes: A feeding unit (5), the feeding unit (5) being a feeding funnel, the feeding unit (5) being connected to the two support plates (11) at both ends along the axial direction of the cutting roller (21), and the lower end opening of the feeding unit (5) being arranged directly above the gap between the two cutting rollers (21).

8. The tobacco cutting device according to claim 7, characterized in that: The feeding unit (5) is provided with downwardly opening limit grooves (51) at both ends along the axial direction of the cutting roller (21), and the two support plates (11) are inserted into the two limit grooves (51) in a one-to-one correspondence and abut against the bottom walls of the limit grooves (51) in the vertical direction.

9. The tobacco cutting device according to claim 8, characterized in that: Also includes: A material receiving box (7), the two cutting rollers (21) and the two supporting plates (11) enclose a receiving space, the receiving space is located below the cutting rollers (21), and the receiving space is provided with an inlet and outlet in the first horizontal direction, and the material receiving box (7) can enter and exit the receiving space through the inlet and outlet.

10. The tobacco cutting device according to claim 9, characterized in that: The material receiving box (7) is provided with a handle at one end in the first horizontal direction.

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