Tobacco shred loosening and screening device

Abstract

The invention relates to a tobacco shred loosening and screening device which comprises a mounting support, a loosening assembly and a screening assembly, the loosening assembly is arranged at the top of the mounting support and used for loosening shredded tobacco shreds, the screening assembly is arranged under the loosening assembly and used for screening long tobacco shreds and medium-short tobacco shreds, and the loosening assembly comprises a loosening guide rail and a star roller; the two loosening guide rails are horizontally laid on the top of the mounting support, the star rollers are rotatably arranged on the two loosening guide rails, star pieces of any two adjacent star rollers are arranged in a staggered mode, the screening box is of a box structure with an opening in the top and a preset length, and the first screen and the second screen are horizontally embedded in the screening box. The vibrating screens are arranged in the length direction of the screening box body, the first screen is located over the second screen, the two ends of each vibrating screen are connected with the mounting support and the bottom of the screening box body respectively, the vibrating screens are arranged in the length direction of the screening box body at intervals, and the PLC is connected with the vibrating screens and regulates and controls the vibrating frequency of the screening box body.

Description

TECHNICAL FIELD

[0001] The present application relates to the tobacco processing equipment technical field, especially to a tobacco loose screening device. BACKGROUND

[0002] In the tobacco processing process, with the deepening of the understanding of the production and processing technology of thin cigarettes, through the research on the tobacco structure, the "length control and broken control" processing concept of the tobacco processing technology is formed, and the important influence of the tobacco structure on the tobacco processing quality of thin cigarettes is formed. The tobacco after cutting must be processed again, and the tobacco must be loosened for later screening treatment. SUMMARY

[0003] In order to solve the problem of low screening efficiency of traditional tobacco loosening, the present application provides a tobacco loosening and screening device, which comprises: a mounting bracket, a loosening assembly and a screening assembly; The mounting bracket is a hollow structure, the loosening assembly is arranged at the top of the mounting bracket, and the loosening assembly is suitable for loosening long tobacco and medium and short tobacco, and the screening assembly is arranged directly below the loosening assembly and is suitable for screening long tobacco and medium and short tobacco; Among them, the loosening assembly comprises a loosening guide rail, a driving motor and a star roller, the loosening guide rail is two, the two loosening guide rails are horizontally laid on the top of the mounting bracket, a plurality of star rollers are rotatably arranged between the two loosening guide rails through the driving motor, and are distributed along the length direction of the two loosening guide rails, and the star pieces of any two adjacent star rollers are staggered. Among them, the screening assembly comprises a screening box, a first screen, a second screen, a vibrating screen and a PLC controller, the screening box is a box structure with a predetermined length and an open top, the first screen and the second screen are both horizontally embedded in the inside of the screening box and are arranged along the length direction of the screening box, the first screen is located directly above the second screen, the plate surface of the first screen is provided with a first screen hole, the plate surface of the second screen is provided with a second screen hole, the opening diameter of the first screen hole is suitable for being greater than the length of the medium and short tobacco and smaller than the length of the long tobacco, the diameter of the second screen hole is suitable for being smaller than the length of the medium and short tobacco, the two ends of the vibrating screen are respectively connected with the mounting bracket and the bottom of the screening box, a plurality of vibrating screens are arranged at intervals along the length direction of the screening box, and the PLC controller is connected with the plurality of vibrating screens and adjusts the vibration frequency of the screening box.

[0004] In a possible implementation, one end of the length direction of the screening box is provided with a long tobacco discharge port, the first screen passes through the long tobacco discharge port, and is suitable for being connected with the inlet of the rotary cutting device; The bottom wall of the screening box is provided with a medium and short cut tobacco discharge port, which is connected and communicated with the second screen.

[0005] In a possible implementation, the star roller comprises a first cylinder, a star disc and star pieces; The first cylinder is a columnar structure with a preset length, and an external thread is arranged at a middle position. The star disc is an annular structure, and an internal thread matching the external thread is arranged on an inner ring. The star disc is sleeved on the outside of the first cylinder and connected by external bolts. An outer ring is provided with a star piece mounting groove, which is arranged at intervals along the circumferential direction of the star disc. The star piece is arranged in the star piece mounting groove, and the star piece is a plate-shaped structure with an isosceles triangular cross section, with a pointed end facing outward.

[0006] In a possible implementation, the loose assembly further comprises a partition plate. The partition plate is an annular structure with a preset thickness. The star disc and the partition plate are sequentially and alternately sleeved on the outside of the first cylinder.

[0007] In a possible implementation, the loose assembly further comprises a driving motor. Key grooves are arranged at both ends of the length direction of the first cylinder, and the output end of the driving motor is embedded in the key grooves. The driving motor drives the first cylinder to rotate around the axis.

[0008] In a possible implementation, the first screen and the second screen are spaced apart by a preset distance, and the second screen and the bottom wall of the screening box are spaced apart by a preset distance. The bottom wall of the screening box is provided with a tobacco tar discharge port.

[0009] In a possible implementation, the screening assembly further comprises a medium and short cut tobacco discharge pipe and a tobacco tar discharge pipe. The medium and short cut tobacco discharge pipe is a tubular structure with open ends, and is vertically arranged. The top of the medium and short cut tobacco discharge pipe is connected and communicated with the second screen through the medium and short cut tobacco discharge port, and is suitable for discharging medium and short cut tobacco. The tobacco tar discharge pipe is a tubular structure with open ends, and is vertically arranged. The top of the tobacco tar discharge pipe is connected and communicated with the tobacco tar discharge port of the screening box, and is suitable for discharging tobacco tar.

[0010] In a possible implementation, the inner wall of the screening box is provided with a first mounting piece and a second mounting piece along the length direction. The first mounting piece and the second mounting piece are both plate-shaped structures, with the plate surface perpendicular to the side wall of the screening box. The first mounting piece is located above the second mounting piece. The width of the first screen matches the width of the screening box, the first screen is horizontally arranged on the first mounting member, the width of the second screen matches the width of the screening box, and the second screen is horizontally arranged on the second mounting member.

[0011] In a possible implementation, the mounting bracket further comprises a support leg and an elastic member. A plurality of support legs are arranged at the bottom of the mounting bracket in a horizontal direction. The elastic member has elasticity, and two ends of the elastic member are connected with the support leg and the screening box respectively.

[0012] In a possible implementation, the screening assembly is arranged along the length direction of the loose assembly, the width of the screening assembly is equal to the width of the loose assembly, and the length of the screening assembly is greater than the length of the loose assembly.

[0013] The loose screening device of the tobacco shred according to the embodiments of the present application has the following beneficial effects: the loose assembly is suitable for being connected with the output end of the tobacco shred cutting device, and the non-conforming tobacco shred is loosened into long tobacco shreds, medium and short tobacco shreds, and tobacco shreds, the loose assembly is located directly below the screening assembly, the loosened tobacco shreds of the loose assembly can be screened through the screen, the long tobacco shreds are screened and conveyed to the next process of the rotary beating cutting device for cutting into medium and short tobacco shreds, the medium and short tobacco shreds are screened and conveyed to the next packaging process, and the tobacco shreds are screened and recycled. In this way, the tobacco shred loosening and screening device of the present application can loosen and screen the tobacco shreds, and the subsequent rotary beating cutting can be performed, so that the medium and short tobacco shreds meeting the standards can be produced.

[0014] Other features and aspects of the present application will become apparent from the following detailed description of the example embodiments with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate example embodiments, features, and aspects of the present application and serve to explain the principles of the present application.

[0016] Figure 1 A front view structural schematic diagram of the tobacco shred loosening and screening device according to the embodiments of the present application is shown; Figure 2 A top view structural schematic diagram of the tobacco shred loosening and screening device according to the embodiments of the present application is shown; Figure 3 A main body structural schematic diagram of the star roller according to the embodiments of the present application is shown; Figure 4 A main body structural schematic diagram of the partition plate according to the embodiments of the present application is shown; Figure 5A schematic view of a main body structure of a star disc and a star sheet of the embodiment of the present application is shown. DETAILED DESCRIPTION

[0017] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in different drawings denote the same or similar elements throughout the present application. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically noted.

[0018] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships as shown by the drawings, and are merely used for convenience in describing the present application or simplifying the description, and therefore cannot be construed as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0019] In addition, the terms "first", "second", and the like, are used only for descriptive purposes, and are not to be construed as indicating or implying relative importance or a quantity of the indicated elements. Thus, a feature defined with "first" or "second" can include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0020] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0021] In addition, numerous specific details are given in the following detailed description in order to provide a thorough understanding. Those of ordinary skill in the art will realize that the application can be practiced without some of the specific details. In some instances, well-known methods, procedures, components, and circuits have not been described in detail in order to avoid obscuring aspects of the present application.

[0022] As Figure 1As shown, an embodiment of the tobacco loosening and sieving device of this application includes: a mounting bracket 4, a loosening component 1, and a sieving component 2. The mounting bracket 4 has a hollow structure, and the loosening component 1 is disposed on top of the mounting bracket 4, suitable for loosening tobacco clumps of long and medium-short tobacco. That is, in this application, the mounting bracket is used to install and support the loosening component. After the loosening component is installed on the mounting bracket, the hollow structure of the mounting bracket does not obstruct the loosening of the tobacco by the loosening component. The tobacco to be loosened can be freely fed into the loosening component for loosening, and the loosened tobacco can also freely fall downwards. The sieving component 2 is disposed directly below the loosening component 1, capable of receiving the loosened tobacco from the loosening component, and the sieving component 2 of this application is suitable for sieving long and medium-short tobacco. The loosening component 1 includes a loosening guide rail, a drive motor, and a star roller 10. There are two loose guide rails, which are laid horizontally on the top of the mounting bracket 4 via a drive motor. Multiple star rollers 10 are rotatably mounted on the two loose guide rails.

[0023] As one possible implementation method, such as Figure 2 and Figure 3 As shown, the star plates 13 of any two adjacent star rollers 10 are staggered and have the same projected cross section. In this way, the star plates on the two adjacent star rollers can loosen the tobacco shreds.

[0024] In this configuration, two adjacent star rollers 10 are driven in the same direction to prevent the star plates from damaging the tobacco. Two adjacent star rollers 10 are driven in different directions to further improve the loosening of the tobacco clump.

[0025] Specifically, such as Figure 1As shown, the screening assembly 2 in the embodiment of the present application comprises a screening box 23, and a first screen 21, a second screen 22 and a vibrating screen 25 arranged in sequence from top to bottom. It also comprises a PLC controller 24. The screening box 23 is a box structure with a top opening and a preset length, the top opening area is matched with the loose structure arranged above it, and can receive the loose cut tobacco after the loose assembly is loosened. The first screen 21 and the second screen 22 are both horizontally embedded in the interior of the screening box 23, matched with the cross section of the interior of the screening box, and basically occupy the entire screening box. The first screen 21 and the second screen 22 are arranged along the length direction of the screening box 23, the first screen 21 is located directly above the second screen 22, and the board surface of the first screen 21 is provided with first screen holes, and the board surface of the second screen 22 is provided with second screen holes, the first screen holes are suitable for the length of the long cut tobacco, and the second screen holes are suitable for the length of the medium and short cut tobacco, that is, the standard cut tobacco. The top of the vibrating screen 25 is fixedly installed on the mounting bracket 4. The top is connected with the bottom of the screening box 23, so as to drive the screening box 23 to vibrate. A plurality of vibrating screens 25 are arranged at intervals along the length direction of the screening box 23. As shown in the figure, Figure 1 As shown, in an embodiment of the present application, there are six vibrating screens 25, and the six vibrating screens 25 are divided into two groups, and the two groups are arranged on the two sides of the middle of the length direction of the screening box. That is, Figure 1 The bottom left side of the screening box is provided with three vibrating screens, that is, a group of vibrating screens, and the right side is provided with three vibrating screens, that is, a group of vibrating screens, and the distance between the two groups of vibrating screens is two vibrating screens. The PLC controller 24 is connected with the plurality of vibrating screens 25, and can adjust the vibration of the vibrating screen 25 to achieve the effect of adjusting the vibration frequency of the screening box 23.

[0026] In a specific embodiment, the end of the two star rollers 10 is sleeved with a transmission belt from the first end to the end of the loose assembly 1, and the transmission belt drives the two star rollers to rotate through the driving motor arranged at the end of any star roller 10.

[0027] In this specific embodiment, the loose assembly 1 is suitable for being connected with the output end of the cut tobacco device, and the cut tobacco groups that do not meet the standard are loosened into long cut tobacco, medium and short cut tobacco and tobacco dregs. As shown, Figure 1 The loose assembly 1 is located directly above the screening assembly 2, and the cut tobacco loosened by the loose assembly 1 can be screened through the screen, the long cut tobacco is conveyed to the next process of the rotary beating cutting device for cutting into medium and short cut tobacco, the medium and short cut tobacco is conveyed to the next packaging process, and the tobacco dregs is recycled. In this way, the cut tobacco groups can be loosened and screened through the cut tobacco loosening and screening device of the present application, so that the subsequent rotary beating cutting is facilitated, and the medium and short cut tobacco meeting the standard can be produced.

[0028] The loose guide rail is horizontally arranged on the mounting bracket 4 and located at the top of the mounting bracket 4, and the loose guide rail is a long strip-shaped guide rail structure, two loose guide rails are arranged for rotatable mounting of the star roller 10, the star roller 10 comprises a first cylinder 11, a star disc 14 and star pieces 13, both ends of the first cylinder 11 are rotatably arranged on the two loose guide rails, and a plurality of star pieces 13 are arranged at intervals along the circumferential direction of the star disc 14, the star disc 14 is sleeved outside the first cylinder 11 and is threadedly connected, and the star pieces 13 of adjacent two star rollers 10 are arranged in a staggered manner, so that the bunched tobacco is loosened into long tobacco, medium and short tobacco and tobacco dregs.

[0029] The first screen 21 is a plate-shaped structure horizontally arranged in the screening box 23, the length direction end of the first screen 21 is connected with the feeding end of the vertical beating device, a plurality of first screen holes are arranged on the plate surface, the diameter of the first screen hole is greater than the length of the medium and short tobacco and less than the length of the long tobacco, so that the long tobacco is ensured to be retained on the surface of the first screen 21, and the medium and short tobacco falls through the screen hole, the second screen 22 is also a horizontal plate-shaped structure and is located directly below the first screen 21, a second screen hole is arranged on the plate surface, the diameter of the second screen hole is less than the length of the medium and short tobacco, so that the medium and short tobacco is retained and only the tobacco dregs is allowed to pass through, and the bottom wall of the screening box 23 is used for receiving the tobacco dregs passing through the second screen hole, the vibrating screen 25 is installed at the bottom of the screening box 23, is arranged at intervals along the horizontal length direction of the screening box 23, and the PLC controller 24 is electrically connected with all the vibrating screens 25, so that the vibration frequency and the movement track of the screening box 23 can be adjusted in real time, and the smooth conveying and efficient screening of the tobacco are ensured.

[0030] In a specific embodiment, as shown in Figure 1 and Figure 2 , one end of the length direction of the screening box 23 is provided with a long tobacco discharge port, the first screen 21 passes through the long tobacco discharge port and is suitable for being connected with the feeding port of the beating and cutting device, the bottom wall of the screening box 23 is provided with a medium and short tobacco discharge port, and the medium and short tobacco discharge port is connected with and communicated with the second screen 22.

[0031] In this specific embodiment, one end of the length direction of the first screen 21 passes through the long tobacco discharge port and extends to the top of the tobacco beating device 3, corresponds to the feeding port of the tobacco beating device 3, conveys the screened long tobacco into the tobacco beating device 3, cuts the long tobacco into medium and short tobacco through the tobacco beating device 3, and then conveys the medium and short tobacco to the next process. The medium and short tobacco screened can be conveyed to the next process through a pipeline passing through the bottom wall of the screening box 23 and connected with the second screen 22 and an external medium and short tobacco linear conveying belt machine at both ends.

[0032] The second screen 22 is adjacent to one end of the length direction of the tobacco rotating and beating device 3, and starts the short tobacco discharging port. The extension direction of the first screen 21 is the same as that of the second screen 22, that is, the first screen 21 and the second screen 22 are adjacent to one end of the tobacco rotating and beating device 3, and the end is the tobacco output end. The vibrating screen 25 is connected with the screening box 23, and the tobacco in the box is vibrated and conveyed to the end of the first screen 21 and the second screen 22.

[0033] In a specific embodiment, as shown in Figure 3 The star roller 10 includes a first cylinder 11, a star disc 14 and a star piece 13. The first cylinder 11 is a cylindrical structure with a preset length, and an external thread is arranged at the middle position. The surfaces of both ends are smooth, and a key groove is arranged for driving the motor. The cross-sectional diameter of both ends of the first cylinder 11 is smaller than that of the middle position. The star disc 14 is a ring structure, and an internal thread is arranged on the inner ring to match the external thread. The star disc 14 is sleeved on the first cylinder 11 and connected by external bolts. The outer ring is provided with a star piece 13 mounting groove, and the star piece 13 mounting grooves are arranged along the circumferential direction of the star disc 14. Figure 5 The star piece 13 is a plate structure with an isosceles triangle cross-section, and the tip is directed outward.

[0034] As shown in Figure 5 The end of the star piece 13 is a flat surface, that is, the overall structure of the star piece 13 is an isosceles trapezoid, so as to avoid damaging the tobacco by the tip. The star disc 14 and the star piece 13 are combined to form a gear structure. The inner ring is circular and matches the first cylinder. The outer ring is an isosceles triangle or an isosceles trapezoid. It should be noted that the width of the star piece 13 gradually decreases away from the star disc 14, which facilitates the staggered arrangement of the star pieces of two adjacent star rollers. The end of the star piece away from the star disc is pointed, which facilitates the loosening of the tobacco mass.

[0035] In this specific embodiment, the first cylinder 11 is a cylindrical structure with a preset length, and the surfaces of both ends are smooth and an external thread is arranged at the middle position. The cross-sectional diameter of both ends of the first cylinder 11 is smaller than that of the middle position, which facilitates the installation of both ends of the first cylinder 11 in the rotating grooves on the loosening guide rail. The star disc 14 is a ring structure, and an internal thread is arranged on the inner ring to match the external thread of the first cylinder 11. The outer ring is provided with a star piece 13 mounting groove for mounting the star piece 13, and a plurality of star pieces 13 are arranged along the circumferential direction of the star disc 14. The star piece 13 is a plate structure with an isosceles triangle cross-section, and has a preset thickness. The star piece 13 is bolted in the star piece 13 mounting groove, and the tip is directed outward.

[0036] The star pieces 13 on any two adjacent star rollers 10 are staggered and spaced apart by a preset distance. The tobacco can fall through the preset distance to the screening assembly 2 below.

[0037] The number of star rollers 10 is multiple, the position for feeding the tobacco material is the head end of the loose assembly 1, and the loose assembly 1 sequentially comprises a first star roller, a second star roller and a third star roller and the like, each star roller is connected with a driving motor, and the star sheets on the adjacent two star rollers are staggered, the driving rotation speed of the first star roller is greater than the driving rotation speed of the other star rollers, and under the action of the speed difference between the first star roller and the intermediate star roller 10, the raw tobacco is thrown from the head end to the tail end of the loose assembly 1, and it should be noted that the driving rotation speed of the first star roller is greater than the driving rotation speed of the third star roller, and the star sheets on the first star roller are staggered with the star sheets on the second star roller, so that when the loose tobacco group is formed, the rotation speed of the star sheets on the first star roller and the rotation speed of the star sheets on the third star roller form a speed difference, and the driving speed of the first star roller is fast, which can pick up the tobacco group relative to the star sheets of the third star roller and then throw it towards the rear star roller, thereby avoiding the accumulation of tobacco at the head end of the loose assembly 1. At the same time, under the action of the forward throwing formed in the movement process of each loose star roller 10, the tobacco of different specifications mixed together is separated and loosened, and under the action of the continuous rotation of the loose star roller 10, the filaments and groups of tobacco in the gap between the star sheets 13 on the adjacent loose star rollers 10 float upwards to the forward movement of the star sheets 13 into the vibrating screening processing area, and the tobacco of other specifications will fall along the gap between the loose star sheets 13 while moving forward. It can play a role in thinning and uniformizing the tobacco, and realize effective and accurate screening in the next process.

[0038] In this specific embodiment, two loose guide rollers are arranged side by side along the length direction on the mounting bracket, and a length direction of the loose guide roller is spaced apart from the mounting bracket by a predetermined distance, facilitating feeding of the tobacco material in the previous process, and the vertical height of at least the first star roller and the second star roller is lower than the vertical height of the other star rollers, and the driving rotation speed of the first star roller is greater than the driving rotation speed of the other star rollers, facilitating throwing of part of the tobacco material towards the other star rollers to allow the tobacco that has not been loosened to be loosened on the other star rollers.

[0039] It should be noted that, as shown in Figure 1 The length of the screening box body is greater than the length of the loose guide roller, and the area of the screening box body that exceeds the loose guide roller is the vibrating screening processing area, which is used for laying and screening the tobacco, so as to avoid the tobacco being laid in a large area on the first screen mesh located directly below the loose assembly, thereby affecting the screening of long tobacco and medium and short tobacco by the first screen mesh.

[0040] In a specific embodiment, the loose assembly 1 further comprises a partition plate 12, the partition plate 12 is an annular structure with a predetermined thickness, the star disc 14 and the partition plate 12 are sequentially and alternately arranged outside the first cylinder 11, the partition plate 12 is an annular structure with a predetermined thickness, and the partition plate 12 and the star disc 14 are alternately arranged on the first cylinder 11.

[0041] In this specific embodiment, the adjacent two star discs 14 are separated by the partition plate 12, so that the star pieces 13 of the adjacent two star rollers 10 can be staggered. In addition, the thickness of the partition plate 12 is greater than the thickness of the star piece 13, so that the star pieces 13 of the adjacent two star rollers 10 can be staggered while maintaining a spacing distance, so that the loose long cut tobacco and the loose medium and short cut tobacco can fall.

[0042] In a specific embodiment, the loosening assembly 1 further comprises a driving motor, the first cylinder 11 is provided with a key groove 110 at both ends in the length direction, and the output end of the driving motor is embedded in the key groove 110. The driving motor drives the first cylinder 11 to rotate around the axis.

[0043] In this specific embodiment, the driving motor is a plurality of driving motors, and the output ends of the driving motors are connected to the ends of the adjacent two star rollers 10 to drive the star rollers 10 to rotate around the axis.

[0044] In a specific embodiment, the first screen 21 and the second screen 22 are spaced apart by a predetermined distance, the second screen 22 and the bottom wall of the screening box 23 are spaced apart by a predetermined distance, and the bottom wall of the screening box 23 is provided with a tobacco tar discharge port.

[0045] In this specific embodiment, the first screen 21 and the second screen 22 are spaced apart by a predetermined distance, which provides space for the medium and short cut tobacco falling through the first screen 21, and the second screen 22 and the bottom wall of the screening box 23 are spaced apart by a predetermined distance, which provides space for the tobacco tar falling through the second screen 22, and the tobacco tar is recovered through the tobacco tar discharge port provided in the bottom wall of the screening box 23.

[0046] In a specific embodiment, the screening assembly 2 further comprises a medium and short cut tobacco discharge pipe and a tobacco tar discharge pipe. The medium and short cut tobacco discharge pipe is a tubular structure with two open ends, and is vertically arranged. The top of the medium and short cut tobacco discharge pipe is connected to and communicates with the second screen 22 through the medium and short cut tobacco discharge port, and is suitable for discharging medium and short cut tobacco. The tobacco tar discharge pipe is a tubular structure with two open ends, and is vertically arranged. The top of the tobacco tar discharge pipe is connected to and communicates with the tobacco tar discharge port of the screening box 23, and is suitable for discharging tobacco tar.

[0047] In this specific embodiment, one end of the medium and short cut tobacco discharge pipe is connected to and communicates with the second screen 22 through the bottom wall of the screening box 23, and the other end is connected to the second input end of the main line conveying belt machine, so as to convey the standard medium and short cut tobacco to the main line conveying belt machine. One end of the tobacco tar discharge pipe is connected to and communicates with the bottom wall of the screening box 23, and the other end communicates with the recovery device, so as to discharge the tobacco tar, and ensure that the cut tobacco conveyed by the main line conveying belt machine is medium and short cut tobacco without tobacco tar.

[0048] Specifically, the vibrating screen 25 comprises vibrating springs, and the vibrating springs are arranged in an inclined manner, with the top part facing the head end of the screening device and the bottom part facing the tail end of the screening device, so that when the vibrating screen 25 vibrates, the tobacco shreds on the screening box 23 can be bounced from the head end of the screening assembly 2 to the tail end of the screening assembly 2, so as to realize the movement of the tobacco shreds from the head end to the tail end of the screening box 23. The tobacco rotating and beating device 3 is located at the tail end position of the screening assembly 2 and corresponds to the upper and lower parts of the part of the first screen 21 extending out of the screening box 24.

[0049] In a specific embodiment, the inner wall of the screening box 23 is provided with a first mounting member and a second mounting member in the length direction, both of which are plate-shaped structures, the plate surface is perpendicular to the side wall of the screening box 23, and the first mounting member is located above the second mounting member. The width of the first screen 21 matches the width of the screening box 23, and the first screen 21 is arranged horizontally on the first mounting member. The width of the second screen 22 matches the width of the screening box 23, and the second screen 22 is arranged horizontally on the second mounting member.

[0050] In this specific embodiment, the first mounting member and the second mounting member are both long strip-shaped structures, arranged horizontally on the inner side wall of the screening box 23 in the length direction of the screening box 23, and used for mounting the first screen 21 and the second screen 22 respectively.

[0051] In a specific embodiment, the mounting bracket 4 further comprises support legs 42 and elastic members 41. The plurality of support legs 42 are arranged at the bottom of the mounting bracket 4 in the horizontal direction at intervals. The elastic members 41 have elasticity, and the two ends of the elastic members 41 are connected with the support legs 42 and the screening box 23 respectively. The elastic members 41 are arranged at the top of the support legs 42 and connected with the support legs 42 and the mounting bracket 4 respectively. The elastic members 41 can absorb the vibration energy generated by the high-frequency elastic sheet vibrating screen 25, reduce the transmission of the vibration to the ground and the surrounding equipment, reduce the working noise, and at the same time avoid the ground vibration acting on the first screen 21 and the second screen 22.

[0052] In a specific embodiment, the screening assembly 2 is arranged in the length direction of the loose assembly 1, and the width of the screening assembly 2 is equal to the width of the loose assembly 1, and the length of the screening assembly 2 is greater than the length of the loose assembly 1. The design of equal width and flush edges can avoid the material scattering out of the screen during falling, and reduce the material loss.

[0053] In a specific embodiment, the vibrating screen 25 is arranged obliquely at the bottom of the screening box 23, and is connected with the mounting bracket 4 and the screening box 23 respectively, so as to drive the medium and short cut tobacco on the second screen 22 to move towards the direction away from the head end of the second screen 22, drive the tobacco dregs on the bottom wall of the screening box 23 to move towards the direction away from the head end, and drive the long cut tobacco on the first screen 21 to move towards the direction of the tobacco rotating and beating device 3. The automatic conveying of the material is realized by using the vibrating force, and it is not necessary to additionally set a conveying mechanism such as a conveying belt, so that the equipment structure is simplified, the manufacturing cost and the maintenance difficulty are reduced, and the mechanical damage to the tobacco can be avoided due to the mild oblique vibrating force.

[0054] In a specific embodiment, the first star roller 10 can rotate and beat the tobacco, and throw the tobacco to the side wall of the loosening assembly 1 for loosening. Since the length of the first screen 21 is greater than the length of the loosening assembly 1, the tobacco can directly fall on the first screen 21 below.

[0055] The above has described the embodiments of the present application, and the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A tobacco loosening and sizing apparatus characterised in that, The utility model relates to a kind of installation support, loose component and screening component comprising: The installation support is hollow structure, the loose component is set in the top of the installation support, it is suitable for loose after cutting tobacco to facilitate subsequent screening, the screening component is set below loose component, it is suitable for screening long tobacco and short tobacco; Wherein, the loose component includes loose guide rail, drive motor and star roll, the loose guide rail is two, two The loose guide rail is horizontally laid in the top of the installation support, a plurality of star rolls are rotatably arranged between two The loose guide rail is distributed along the length direction of two The loose guide rail, and the star sheet of any adjacent two The star roll is staggered arrangement; Wherein, the screening component includes screening box, first screen, second screen, vibrating screen and PLC controller, the screening box is the box structure with predetermined length with top opening, the first screen and the second screen are both horizontally embedded in the inside of the screening box, and are arranged along the length direction of the screening box, the first screen is located above the second screen, and the board face of the first screen is provided with first screen hole, the board face of the second screen is provided with second screen hole, the first screen hole is suitable for being greater than the length of short tobacco, and less than the length of long tobacco, the second screen hole is suitable for being less than the length of short tobacco, two ends of the vibrating screen are respectively connected with the installation support and the bottom of the screening box, a plurality of vibrating screens are interval arranged along the length direction of the screening box, the PLC controller is connected with a plurality of vibrating screens, and the vibration frequency of the screening box is controlled. The length direction one end of the screening box is provided with long tobacco discharge port, the first screen passes through the long tobacco discharge port, and is suitable for being connected with the inlet of rotary beating cutting device; 2. A tobacco loose screening device according to claim 1, characterised in that, The bottom wall of the screening box is provided with short tobacco discharge port, and the short tobacco discharge port is connected with the second screen and communicates. The star roll includes first cylinder, star disc and star sheet; 3. A tobacco loose screening device according to claim 1, characterised in that, The first cylinder is columnar structure with predetermined length, and external thread is arranged at middle position, the star disc is ring structure, and internal thread is arranged on inner ring and matched with the external thread; The star disc is sleeved on the outside of the first cylinder and connected by external bolt, outer ring is provided with star sheet mounting groove, and the star sheet mounting groove is interval arranged along the circumferential direction of the star disc; The star sheet is arranged in the star sheet mounting groove, and the star sheet is plate structure with isosceles triangle cross section, and tip end faces outside. The loose component further includes: baffle; 4. A tobacco loose screening device according to claim 3, characterised in that, The baffle is annular structure with predetermined thickness; The star disc and the baffle are sequentially and staggeredly sleeved on the outside of the first cylinder. The loose component further includes: drive motor; 5. A tobacco loose screening device according to claim 4, characterised in that, Key groove is arranged at both ends of the length direction of the first cylinder, the output end of the drive motor is embedded in the key groove, and the drive motor drives the first cylinder to rotate around axis. The first screen and the second screen are interval arranged with predetermined distance, and the second screen and the bottom wall of the screening box are interval arranged with predetermined distance; 6. A tobacco loosening and sizing apparatus according to claim 2, wherein The bottom wall of the screening box is provided with tobacco tar discharge port. ​ 7. A tobacco loose screening device according to claim 6, characterised in that, The screening assembly further comprises a medium-short cut tobacco discharge pipe and a tobacco dottle discharge pipe; The medium-short cut tobacco discharge pipe is a tubular structure with both ends open, and is vertically arranged, with the top part connected to and communicating with the second screen through the medium-short cut tobacco discharge port, and is suitable for discharging medium-short cut tobacco. The tobacco dottle discharge pipe is a tubular structure with both ends open, and is vertically arranged, with the top part connected to and communicating with the tobacco dottle discharge port of the screening box, and is suitable for discharging tobacco dottle.

8. A tobacco loose screening device according to claim 6, characterised in that, The inner wall of the screening box is provided with a first mounting member and a second mounting member along the length direction, both of which are plate-shaped structures with the plate surface perpendicular to the side wall of the screening box, and the first mounting member is located above the second mounting member. The width of the first screen matches the width of the screening box, and the first screen is horizontally arranged on the first mounting member; the width of the second screen matches the width of the screening box, and the second screen is horizontally arranged on the second mounting member.

9. A tobacco loose screening device according to claim 1, characterised in that, The mounting bracket further comprises a support leg and an elastic member; A plurality of support legs are arranged at the bottom of the mounting bracket in the horizontal direction; The elastic member has elasticity, and both ends of the elastic member are connected to the support leg and the screening box, respectively.

10. A tobacco loose screening device according to claim 1 characterised in that, The screening assembly is arranged along the length direction of the loose assembly, and the width of the screening assembly is equal to the width of the loose assembly, and the length of the screening assembly is greater than the length of the loose assembly.

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