Tobacco stemming machine

Abstract

The utility model discloses a tobacco stemming machine, including a stemming unit, which includes a transmission component and a cutting component, the transmission component includes an upper active roller and a lower active roller, the cutting component includes a cutting roller, and the cutting roller is arranged above the upper active roller and the lower active roller. The upper active roller, the lower active roller and the cutting roller are driven by a transmission component to rotate synchronously to drive the tobacco leaves to move through the cutting roller to achieve leaf stem cutting. The present application sets a transmission component to achieve synchronous rotation of the lower active roller, the upper active roller and the cutting roller. At this time, a belt structure is installed to achieve synchronous movement of two groups of belts, thereby avoiding damage to tobacco leaves caused by misalignment between belts. The synchronous rotation of the cutting roller matches the movement speed of the tobacco leaves, which is convenient for smoothly cutting off the leaf stems.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco processing, in particular to a tobacco stemming machine. Background Art

[0002] In the process of tobacco product processing, it is necessary to remove the stems of tobacco leaves, especially the main stems. For example, in the processing and production of cigars, cigars are composed of a wrapper, a binder and a core. The wrapper is the outermost layer of tobacco leaves, and the binder is used to fix the position of the core. The tobacco leaves used to make cigars need to be destemmed - the main stem in the middle of the tobacco leaves is removed, and the whole tobacco leaf is divided into two after the main stem is removed.

[0003] In order to improve the efficiency of separating tobacco leaves and stems, the stem removal devices on the market use rollers and conveyor belts to transport tobacco leaves, and a cutting component is provided to cut and remove the stems of tobacco leaves during transportation. In order to flatten the tobacco leaves during transportation and ensure that the tobacco leaves do not shift, the spacing between the upper and lower conveyor belts is usually small, so the upper and lower belts need to move synchronously to prevent the tobacco leaves from being pulled between the belts and causing them to break. However, the upper and lower groups of belts in the existing stem removal device are driven to rotate by different structures respectively, so it is easy for the belts to run out of sync, causing the tobacco leaves to be damaged and deformed between the belts, affecting the stem removal efficiency and reducing the quality of the tobacco leaves. Utility Model Content

[0004] In view of the shortcomings of the prior art, a tobacco stemming machine is proposed, which solves the problem that the upper and lower groups of belts of the existing stemming device in the above-mentioned background technology are driven to rotate by different structures respectively, so the belts are easily misaligned and asynchronous in operation, which affects the stemming efficiency and reduces the quality of tobacco leaves.

[0005] In order to achieve the above purpose, the utility model proposes the following technologies to achieve it:

[0006] A tobacco leaf destemming machine comprises a destemming unit, the destemming unit comprises a transmission component and a cutting component, the transmission component comprises an upper active roller and a lower active roller, the cutting component comprises a cutting roller, the cutting roller is arranged above the upper active roller and the lower active roller, the upper active roller, the lower active roller and the cutting roller are driven by the transmission component to rotate synchronously to drive the tobacco leaves to move through the cutting roller to achieve leaf stem cutting.

[0007] Furthermore, the transmission assembly includes a first gear mounted on the lower active roller, a second gear mounted on the upper active roller and a third gear mounted on the cutting roller, and the second gear and the third gear are respectively meshed with the first gear.

[0008] Furthermore, the transmission component also includes an upper driven roller and a lower driven roller, the upper active roller and the upper driven roller are connected by a first belt transmission, and the lower active roller and the lower driven roller are connected by a second belt transmission, and the first belt and the second belt are arranged in close proximity to form a leaf conveying channel to clamp the tobacco leaves and drive the tobacco leaves to move through the cutting component for de-stemming.

[0009] Furthermore, the top of the lower active roller is arranged at the same height as the top of the lower driven roller, the bottom of the upper driven roller is arranged in contact with the top of the lower driven roller, the top of the lower active roller is higher than the bottom of the upper active roller, and at least one support plate is arranged on the inner side of the closed loop formed by the second belt, and the support plate is arranged in contact with the second belt.

[0010] Furthermore, the transmission component also includes an upper tensioning roller and a lower tensioning roller, the upper tensioning roller is located on the inner side of the closed loop formed by the first belt, and the height of the top of the upper tensioning roller is higher than the height of the top of the upper active roller and the upper driven roller, so as to tension the first belt, and the lower tensioning roller is located on the outer side of the closed loop formed by the second belt, and the height of the top of the lower tensioning roller is higher than the height of the bottom of the lower active roller, so as to tension the second belt.

[0011] Furthermore, at least two of the first belts and the second belts are provided respectively, and the cutting assembly further comprises a cutting blade, which is fixedly mounted on the cutting roller, and at least two first belts and at least two second belts are evenly distributed on both sides of the cutting blade.

[0012] Furthermore, a discharging unit is provided at the discharging end of the destemming unit, and the discharging unit includes a conveyor belt, which is horizontally arranged and the height of the upper surface of the conveyor belt is not higher than the discharging end, so as to transfer the tobacco leaves that have been destemmed by the destemming unit.

[0013] Furthermore, a detection unit is provided on the peripheral side of the conveyor belt, and the detection unit signal is connected to a control unit, and the control unit is signal-connected to a discharging unit and a stem removal unit respectively. The detection unit includes a shooting component, and at least a part of the path along which the tobacco leaves are transported by the conveyor belt is located within the effective shooting range of the shooting component.

[0014] Furthermore, the detection unit also includes an analysis component and a display component. The shooting component is signal-connected to the analysis component, and the analysis component is signal-connected to the display component. The camera component shoots the tobacco leaf image and transmits it to the analysis component. The analysis component grades the tobacco leaves according to the image and transmits the result to the display component for display.

[0015] Furthermore, a feed end is provided between the upper active roller and the lower active roller, and the feed end is located at the starting end of the stem removal unit. The tobacco leaves enter the leaf transfer channel between the first belt and the second belt through the feed end, and after being cut and stemmed by the cutting blade, they pass through the support plate along the leaf transfer channel and enter the discharging unit from the discharging end between the upper driven roller and the lower driven roller for discharging, and are detected and graded by the detection unit.

[0016] Compared with the prior art, the comprehensive effects brought by the utility model include:

[0017] (1) The present application sets up a transmission assembly to realize the synchronous rotation of the lower active roller, the upper active roller and the cutting roller. At this time, installing a belt structure can achieve the synchronous movement of the two sets of belts, thereby avoiding damage to the tobacco leaves caused by misalignment between the belts. The synchronous rotation of the cutting roller matches the movement speed of the tobacco leaves, which facilitates the smooth cutting of the leaf stems.

[0018] (2) By setting different heights between the driving rollers, the leaf conveying channel between the first belt and the second belt is bent downward at the starting part and then set horizontally, so that after the tobacco leaves enter the leaf conveying channel through the feeding end, they first move in accordance with the arc roller surface of the lower active roller, so that the tobacco leaves are stretched as a whole, which is convenient for the stem removal operation of the cutting blade.

[0019] (3) A discharging unit and a detection unit are provided. The conveyor belt receives the tobacco leaves that have been destemmed by the destemming unit and transports them. When passing through the detection unit, the camera component takes pictures of the tobacco leaves that have been destemmed, transmits the images to the analysis component to grade the tobacco leaves, and transmits the grading results to the display component, so that the staff can classify and collect tobacco leaves of different qualities. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall schematic diagram of a tobacco stemming machine according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the stem removal unit of an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the stem removal unit of an embodiment of the utility model from another angle;

[0023] Figure 4 It is a schematic side view of the internal structure of the stem removal unit of an embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the partial structure of the transmission component and the stem collecting component of the embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the installation structure of the first belt and the second belt in an embodiment of the utility model;

[0026] Figure 7 This is a schematic diagram of the installation of a detection unit for a tobacco stem remover according to an embodiment of the utility model.

[0027] Legend: 1. Stem removal unit; 2. Discharging unit; 3. Upper active roller; 4. Lower active roller; 5. Cutting roller; 6. Cutting blade; 7. Guide block; 8. Upper tensioning roller; 9. Upper driven roller; 10. Lower driven roller; 11. Support plate; 12. Second support plate; 13. Stem removal plate; 14. Active pulley; 15. Driven pulley; 16. Feed end; 17. First gear; 18. Lower tensioning roller; 19. Detection unit. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the utility model.

[0029] In this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "top", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0030] like Figures 1 to 7 As shown, a tobacco leaf destemming machine includes a destemming unit 1, and the destemming unit 1 includes a transmission component and a cutting component. The transmission component includes an upper active roller 3 and a lower active roller 4. The cutting component includes a cutting roller 5. The cutting roller 5 is arranged above the upper active roller 3 and the lower active roller 4. The upper active roller 3, the lower active roller 4 and the cutting roller 5 are driven by the transmission component to rotate synchronously to drive the tobacco leaves to move through the cutting roller to achieve leaf stem cutting.

[0031] A transmission assembly is set up to realize the synchronous rotation of the lower active roller, the upper active roller and the cutting roller. At this time, installing a belt structure can achieve the synchronous movement of the two sets of belts, thereby avoiding damage to the tobacco leaves caused by misalignment between the belts. The synchronous rotation of the cutting roller matches the movement speed of the tobacco leaves, which facilitates the smooth cutting of the leaf stems.

[0032] In the tobacco stem remover of this embodiment, the transmission assembly includes a first gear 17 installed on the lower active roller 4, a second gear installed on the upper active roller 3 and a third gear installed on the cutting roller 5, and the second gear and the third gear are respectively meshed with the first gear 17.

[0033] The first gear is arranged to mesh with the second gear and the third gear to drive the first gear to rotate, and the second gear and the third gear move at equal linear speeds, thereby realizing synchronous rotation of the lower active roller 4 connected to the first gear, the upper active roller 3 connected to the second gear, and the cutting roller 5 connected to the third gear. At this time, installing the belt structure can achieve synchronous movement of the two groups of belts, thereby avoiding damage to tobacco leaves caused by misalignment between the belts. The synchronous rotation of the cutting roller 5 matches the movement speed of the tobacco leaves, so as to facilitate the smooth cutting of the leaf stems.

[0034] Preferably, a driven pulley 15 is fixed to the outer side of the first gear, and the driven pulley 15 is connected to the driving pulley 14 through a belt transmission. The driving pulley 14 is connected to the output end of the driving structure and drives the first gear to move through the belt.

[0035] In the tobacco stem remover of the present embodiment, the transmission component also includes an upper driven roller 9 and a lower driven roller 10. The upper active roller 3 and the upper driven roller 9 are connected by a first belt transmission, and the lower active roller 4 and the lower driven roller 10 are connected by a second belt transmission. The first belt and the second belt are arranged in close proximity to form a leaf conveying channel to clamp the tobacco leaves and drive the tobacco leaves to move through the cutting component for stem removal.

[0036] In the tobacco stem remover of the present embodiment, the top of the lower active roller 4 is arranged at the same height as the top of the lower driven roller 10, the bottom of the upper driven roller 9 is arranged in contact with the top of the lower driven roller 10, the top of the lower active roller 4 is higher than the bottom of the upper active roller 3, and at least one support plate 11 is arranged on the inner side of the closed loop formed by the second belt, and the support plate 11 is arranged in contact with the second belt.

[0037] By setting different heights between the driving rollers, the leaf conveying channel between the first belt and the second belt is bent downward at the beginning and then set horizontally, so that the tobacco leaves first move in accordance with the arc roller surface of the lower active roller 4 after entering the leaf conveying channel through the feeding end 16, so that the tobacco leaves are stretched as a whole, which is convenient for the stem removal operation of the cutting blade 6. A support plate 11 is provided to provide support for the leaf conveying channel to ensure that the stemmed tobacco leaves are transported in a horizontal direction, and to prevent the first belt and the second belt from becoming loose due to gravity, causing the leaf conveying channel to deform and affecting the normal transportation of the tobacco leaves.

[0038] Preferably, a support plate 11 and a second support plate 12 are provided to adapt to the conveying distance, and two support plates are provided at the same time to facilitate installation and disassembly thereof, thereby reducing the difficulty of assembly.

[0039] like Figure 6As shown, in the tobacco stem remover of the present embodiment, the transmission assembly further includes an upper tensioning roller 8 and a lower tensioning roller 18. The upper tensioning roller 8 is located on the inner side of the closed loop formed by the first belt, and the height of the top of the upper tensioning roller 8 is higher than the top heights of the upper active roller 3 and the upper driven roller 9, so as to tension the first belt. The lower tensioning roller 18 is located on the outer side of the closed loop formed by the second belt, and the height of the top of the lower tensioning roller 18 is higher than the bottom height of the lower active roller 4, so as to tension the second belt.

[0040] An upper tensioning roller 8 and a lower tensioning roller 18 are provided to tension the first belt and the second belt, and cooperate with the support plate 11 to avoid deformation of the leaf conveying channel between the first belt and the second belt, thereby ensuring a tight fit.

[0041] In the tobacco stem remover of this embodiment, at least two first belts and at least two second belts are respectively provided, and the cutting assembly also includes a cutting blade 6, which is fixedly mounted on the cutting roller 5, and at least two first belts and at least two second belts are evenly distributed on both sides of the cutting blade 6.

[0042] The number of the first belt and the second belt is set to an even number, and the belts are symmetrically distributed on both sides of the cutting blade 6. This can prevent the tobacco leaves from being torn before they are stemmed, thereby protecting the tobacco leaves.

[0043] Preferably, the destemming unit also includes a stem collecting component, which includes a guide rail block 7, which is arranged above the lower active roller 4, and two cutting blades 6 are provided. The two cutting blades 6 are arranged at intervals to form a cutting gap. A guide rail is opened inside the guide rail block 7, and the starting end of the guide rail is connected to the cutting gap to receive the leaf stems cut by the cutting blade 6. The bottom surface of the guide rail block 7 is arranged as an arc-shaped curved surface structure surrounding the roller surface of the lower active roller 4. The guide rail is arranged along the arc-shaped curved surface and passes through the guide rail block 7. A stem discharge plate 13 is arranged below the guide rail block 7. The stem discharge plate 13 is inclined, and the inclination angle is the same as the inclination angle of the inclined surface part of the curved surface. The terminal end of the guide rail is connected to the upper end of the stem discharge plate 13, and the cut leaf stems are transferred to the stem discharge plate 13 through the guide rail to be discharged from the destemming machine.

[0044] The present application sets a transmission component to clamp and transport tobacco leaves. During the transportation process, the cutting component is used to cut and remove stems, so that the tobacco leaves are divided into leaves without main stems, and then the cut leaf stems are guided and discharged from the stem removal machine through the stem collection component. A guide rail block 7 and an internal guide rail are set to connect the cutting gap between the cutting blades 6. The leaf stems move synchronously with the tobacco leaves before being separated from the tobacco leaves. When the cut leaf stem parts move, they enter the guide rails from the cutting gaps until all the leaf stems are cut off and enter the stem removal plate 13 through the guide rails to be discharged from the stem removal machine.

[0045] In the tobacco destemming machine of the present embodiment, a discharging unit 2 is provided at the discharging end of the destemming unit 1. The discharging unit 2 includes a conveyor belt. The conveyor belt is horizontally arranged and the height of the upper surface of the conveyor belt is not higher than the discharging end, so as to transfer the tobacco leaves that have been destemmed by the destemming unit 1. The destemming unit 1 is installed on a first frame and the discharging unit 2 is installed on a second frame. Preferably, the top of the conveyor belt is flush with the top of the lower driven roller 10.

[0046] In the tobacco destemming machine of the present embodiment, a detection unit 19 is provided on the peripheral side of the conveyor belt, and the detection unit 19 is signal-connected to a control unit, and the control unit is signal-connected to the discharging unit 2 and the destemming unit 1, respectively. The detection unit 19 includes a shooting component, and at least a part of the path along which the tobacco leaves are transported by the conveyor belt is located within the effective shooting range of the shooting component; the detection unit 19 also includes an analysis component and a display component, and the shooting component is signal-connected to the analysis component, and the analysis component is signal-connected to the display component, the camera component shoots the tobacco leaf image and transmits it to the analysis component, the analysis component grades the tobacco leaves according to the image, and transmits the result to the display component for display.

[0047] A discharging unit 2 and a detection unit 19 are provided. The conveyor belt receives the tobacco leaves that have been destemmed by the destemming unit 1 and transports them. When passing through the detection unit 19, the camera component takes pictures of the tobacco leaves with the stems removed, and transmits the images to the analysis component to grade the tobacco leaves, and the grading results are transmitted to the display component, so that the staff can classify, collect and process tobacco leaves of different qualities.

[0048] In the tobacco destemming machine of the present embodiment, a feed end 16 is provided between the upper active roller 3 and the lower active roller 4, and the feed end 16 is located at the starting end of the destemming unit 1. The tobacco leaves enter the leaf conveying channel between the first belt and the second belt through the feed end 16, and after being cut and destemmed by the cutting blade 6, they pass through the support plate 11 along the leaf conveying channel, and enter the discharging unit 2 from the discharging end between the upper driven roller 9 and the lower driven roller 10 for discharging, and are detected and graded by the detection unit 19.

[0049] Preferably, a sorting unit may be provided at the end of the discharging unit 2, and the sorting unit automatically classifies and selects the tobacco leaves on the conveyor belt according to the detection results of the detection unit, thereby further reducing the workload of the staff.

[0050] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "rotation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0051] Although the embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tobacco stemming machine, characterized in that: The invention comprises a stem removal unit, wherein the stem removal unit comprises a transmission component and a cutting component, wherein the transmission component comprises an upper active roller and a lower active roller, and the cutting component comprises a cutting roller, wherein the cutting roller is arranged above the upper active roller and the lower active roller, and the upper active roller, the lower active roller and the cutting roller are driven by the transmission component to rotate synchronously to drive the tobacco leaves to move through the cutting roller to realize leaf stem cutting.

2. A tobacco stemming machine according to claim 1, characterized in that: The transmission assembly comprises a first gear mounted on the lower active roller, a second gear mounted on the upper active roller and a third gear mounted on the cutting roller, and the second gear and the third gear are respectively meshed with the first gear.

3. The tobacco stemming machine according to claim 1, characterized in that: The transmission assembly also includes an upper driven roller and a lower driven roller, the upper active roller and the upper driven roller are connected by a first belt transmission, and the lower active roller and the lower driven roller are connected by a second belt transmission, and the first belt and the second belt are arranged in close proximity to form a leaf conveying channel to clamp the tobacco leaves and drive the tobacco leaves to move through the cutting assembly for de-stemming.

4. A tobacco stemming machine according to claim 3, characterized in that: The top of the lower active roller is arranged at the same height as the top of the lower driven roller, the bottom of the upper driven roller is arranged in contact with the top of the lower driven roller, the top of the lower active roller is higher than the bottom of the upper active roller, and at least one support plate is arranged on the inner side of the closed loop formed by the second belt, and the support plate is arranged in contact with the second belt.

5. The tobacco stemming machine according to claim 3, characterized in that: The transmission component also includes an upper tensioning roller and a lower tensioning roller, the upper tensioning roller is located on the inner side of the closed loop formed by the first belt, and the top of the upper tensioning roller is higher than the tops of the upper active roller and the upper driven roller to tension the first belt, and the lower tensioning roller is located on the outer side of the closed loop formed by the second belt, and the top of the lower tensioning roller is higher than the bottom of the lower active roller to tension the second belt.

6. A tobacco stemming machine according to any one of claims 3 to 5, characterized in that: At least two of the first belts and the second belts are provided respectively, and the cutting assembly further comprises a cutting blade, which is fixedly mounted on the cutting roller, and at least two first belts and at least two second belts are evenly distributed on both sides of the cutting blade.

7. The tobacco stemming machine according to claim 1, characterized in that: The discharging end of the destemming unit is provided with a discharging unit, and the discharging unit comprises a conveyor belt, which is arranged horizontally and the height of the upper surface of the conveyor belt is not higher than the discharging end, so as to transfer the tobacco leaves destemmed by the destemming unit.

8. The tobacco stemming machine according to claim 7, characterized in that: A detection unit is provided on the peripheral side of the conveyor belt, and the detection unit signal is connected to a control unit, and the control unit is signal-connected to a discharging unit and a stem removal unit respectively. The detection unit includes a shooting component, and at least a part of the path along which the tobacco leaves are transported by the conveyor belt is located within the effective shooting range of the shooting component.

9. A tobacco stemming machine according to claim 8, characterized in that: The detection unit also includes an analysis component and a display component. The shooting component is signal-connected to the analysis component, and the analysis component is signal-connected to the display component. The shooting component captures tobacco leaf images and transmits them to the analysis component. The analysis component grades the tobacco leaves according to the images and transmits the results to the display component for display.

10. The tobacco stemming machine according to claim 3, characterized in that: A feed end is arranged between the upper active roller and the lower active roller, the feed end is located at the starting end of the stem removal unit, and the feed end is connected to the leaf conveying channel between the first belt and the second belt.

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