Tobacco shred feeding device

Abstract

The invention relates to a tobacco shred feeding device which comprises a vibration screening mechanism, a tobacco shred conveying mechanism, a pre-loosening mechanism and a feeding mechanism, and the vibration screening mechanism is supported on the ground; one end of the tobacco shred conveying mechanism extends to the position above the vibration screening mechanism, and the tobacco shred conveying mechanism and the vibration screening mechanism are arranged at intervals. The pre-loosening mechanism is arranged at the end, located above the vibration screening mechanism, of the tobacco shred conveying mechanism and faces the side, above the vibration screening mechanism, of the tobacco shred conveying mechanism, and tobacco shreds on the tobacco shred conveying mechanism can fall on the pre-loosening mechanism and are dispersed by the pre-loosening mechanism. The feeding mechanism is arranged between the vibration screening mechanism and the pre-loosening mechanism, the feeding mechanism comprises a conveying belt, and the conveying belt can move relative to the vibration screening mechanism, so that the pre-loosened tobacco shreds can fall on different parts of the conveying belt. By means of the structure, the amount of materials located above the screening face after vibration screening treatment can be adjusted, and therefore the total amount of the materials entering the filament re-cutting link can be conveniently adjusted according to the difference of the tobacco shred structure.

Description

Technical Field

[0001] The present invention relates to the technical field of shredded tobacco feeding, in particular to a shredded tobacco feeding device. Background Art

[0002] Due to the gradual increase in sales of medium-length cigarettes, the tobacco structure should also be differentiated between medium and thin cigarette types and changed accordingly to achieve adaptability in tobacco rolling. In addition, different brands of cigarettes in the same category should also be processed differently based on the properties of the raw materials in the formula to improve lean manufacturing capabilities. Currently, at the feed end of the dried leaf shred air separator, an online tobacco structure control system consisting of three steps: pre-loosening of tobacco, filament screening separation, and filament re-cutting is used. This can effectively reduce the proportion of medium and long filaments in the tobacco during the shred production process and improve the quality of cigarette products. However, it cannot fully meet the newly added differentiated manufacturing process requirements mentioned above, and there is a processing shortcoming that the total amount of material entering the filament re-cutting step cannot be flexibly adjusted.

[0003] Since the amount of material entering the filament re-cutting stage is the result of the filament screening process, that is, the material above the screening surface after the vibration screening process, the most direct adjustment method is to change the length of the vibration screening path of the material. However, the existing online control system for tobacco structure cannot flexibly adjust the total amount of material entering the filament re-cutting stage. Summary of the Invention

[0004] Based on this, it is necessary to provide a tobacco feeding device to address the technical problem that the online tobacco structure control system in the relevant technology cannot flexibly adjust the total amount of material entering the filament and then cutting link.

[0005] A tobacco feeding device, comprising:

[0006] Vibrating screening mechanism, supported on the ground;

[0007] a tobacco conveying mechanism, one end of which extends above the vibrating screening mechanism and is spaced apart from the vibrating screening mechanism;

[0008] a pre-loosening mechanism, provided at one end of the tobacco conveying mechanism above the vibrating screening mechanism and facing one side of the vibrating screening mechanism, so that tobacco on the tobacco conveying mechanism can fall onto the pre-loosening mechanism and be dispersed by the pre-loosening mechanism;

[0009] The feeding mechanism is arranged between the vibrating screening mechanism and the pre-loosening mechanism. The feeding mechanism includes a conveyor belt. The conveyor belt can move relative to the vibrating screening mechanism so that the tobacco shreds after the pre-loosening can fall on different parts of the conveyor belt.

[0010] In one embodiment, the feeding mechanism comprises:

[0011] a first frame supported on the ground;

[0012] a frame fixedly connected to the top of the first frame;

[0013] The base is movably connected to the frame, the base can move relative to the frame, and the conveyor belt is movably connected to the base.

[0014] In one embodiment, the feeding mechanism further comprises:

[0015] The transmission mechanism is arranged on the frame and is in transmission connection with the base, and the transmission mechanism can drive the base to move relative to the frame.

[0016] In one embodiment, the transmission mechanism includes:

[0017] A first driving member is provided on the frame;

[0018] a first driving shaft, drivingly connected to the driving portion of the first driving member, the first driving shaft being rotatably connected to the frame;

[0019] a first driven shaft spaced apart from the first driving shaft, the first driven shaft being rotatably connected to the frame;

[0020] Two transmission chains are arranged at intervals along the axial direction of the first driving shaft, and each transmission chain is stretched between the first driving shaft and the first driven shaft, and is transmission-connected to the first driving shaft and the first driven shaft, wherein the first driving shaft rotates relative to the frame under the drive of the driving part of the first driving member to drive the transmission chain to move relative to the frame.

[0021] In one embodiment, the feeding mechanism further comprises:

[0022] Two guide rails, the two guide rails are arranged on the frame at intervals;

[0023] Slide blocks: at least two slide blocks are respectively provided on opposite sides of the base, and the slide blocks are slidably matched with the guide rails.

[0024] In one embodiment, the feeding mechanism further comprises:

[0025] A connecting member is connected to the base, and the transmission chain is connected to the connecting member.

[0026] In one embodiment, the feeding mechanism further includes a drive assembly, and the drive assembly includes:

[0027] A second driving member is provided on the base;

[0028] a second driving shaft, drivingly connected to the driving portion of the second driving member, and the second driving shaft is rotatably connected to the base;

[0029] a second driven shaft, spaced apart from the second driving shaft, the second driven shaft being rotatably connected to the base;

[0030] Wherein, the conveyor belt is stretched between the second driving shaft and the second driven shaft.

[0031] In one embodiment, the feeding mechanism further includes a screed mechanism, and the screed mechanism includes:

[0032] A fixed seat, fixedly connected to the frame and located above the conveyor belt;

[0033] The material shifting member is rotatably connected to the fixing seat, and the material shifting member is used for flattening the tobacco shreds on the conveyor belt.

[0034] In one embodiment, the vibrating screening mechanism comprises:

[0035] a second frame, the second frame being supported on the ground, the second frame and the first frame being staggered in the first direction, and the second frame and the first frame being equal in size in the second direction;

[0036] The first direction and the second direction are perpendicular to each other.

[0037] In one embodiment, the feeding mechanism further comprises:

[0038] a distance measuring component, provided on the first frame;

[0039] A position reflector is provided on the base, defining the installation position of the distance measuring component on the first rack as a reference point, and the distance measuring component can measure the distance between the position reflector and the reference point.

[0040] Beneficial effects of the present invention:

[0041] The present invention provides a tobacco feeding device, which includes a vibrating screening mechanism, a tobacco conveying mechanism, a pre-loosening mechanism, and a feeding mechanism. The vibrating screening mechanism is used to screen tobacco, and one end of the tobacco conveying mechanism is extended to the top of the vibrating screening mechanism, so that the tobacco to be screened can be conveyed to the top of the vibrating screening mechanism by the tobacco conveying mechanism. The tobacco conveying mechanism is located at one end of the vibrating screening mechanism and is spaced apart from the vibrating screening mechanism, so that the pre-loosening mechanism and the feeding mechanism are arranged between the vibrating screening mechanism and the tobacco conveying mechanism. Specifically, the pre-loosening mechanism is arranged at one end of the tobacco conveying mechanism that is located above the vibrating screening mechanism and faces one side of the vibrating screening mechanism, so that the tobacco conveyed to the top of the vibrating screening mechanism by the tobacco conveying mechanism can fall on the pre-loosening mechanism, thereby being loosened by the pre-loosening mechanism. By arranging a feeding mechanism between the vibrating screening mechanism and the pre-loosening mechanism, and by arranging the conveyor belt of the feeding mechanism to be movable relative to the vibrating screening mechanism, the tobacco loosened by the pre-loosening mechanism is allowed to fall on different parts of the conveyor belt, thereby making the tobacco falling from the conveyor belt onto the vibrating screening mechanism more evenly dispersed, thereby adjusting the amount of material above the screening surface after the vibrating screening process, which serves as an important technical means for differential control of tobacco structure. Through the above structure, the amount of material above the screening surface after the vibrating screening process can be adjusted, thereby facilitating the adjustment of the total amount of material entering the filament re-cutting link according to the differentiated structure of the tobacco. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A front view of a tobacco feeding device provided in one embodiment of the present invention;

[0043] Figure 2 A schematic diagram of the three-dimensional structure of a feeding mechanism in a tobacco feeding device provided in one embodiment of the present invention;

[0044] Figure 3 A schematic diagram of the three-dimensional structure of the frame of the feeding mechanism in the tobacco feeding device provided in one embodiment of the present invention;

[0045] Figure 4 A schematic diagram of the three-dimensional structure of the base of the feeding mechanism in the tobacco feeding device provided in one embodiment of the present invention;

[0046] Figure 5 A schematic diagram of the three-dimensional structure of the transmission mechanism of the feeding mechanism in the tobacco feeding device provided in one embodiment of the present invention.

[0047] Reference numerals:

[0048] 100. Vibrating screening mechanism; 110. Second frame; 200. Tobacco conveying mechanism; 300. Pre-loosening mechanism; 400. Feeding mechanism; 410. First frame; 420. Frame; 430. Base; 440. Transmission mechanism; 441. First driving member; 442. First driving shaft; 443. First driven shaft; 444. Transmission chain; 450. Guide rail; 460. Slider; 470. Connecting member; 480. Material leveling mechanism; 481. Fixed seat; 482. Material shifting member; 491. Distance measuring member; 492. Position reflecting plate; 493. Conveyor belt; 494. Driving assembly; 4941. Second driving member; 4942. Second driving shaft; 4943. Second driven shaft; X, first direction. DETAILED DESCRIPTION

[0049] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0052] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0053] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0054] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0055] See Figures 1 to 5 , an embodiment of the present invention provides a tobacco feeding device, which includes a vibrating screening mechanism 100, a tobacco conveying mechanism 200, a pre-loosening mechanism 300 and a feeding mechanism 400. The vibrating screening mechanism 100 is supported on the ground; one end of the tobacco conveying mechanism 200 extends to the top of the vibrating screening mechanism 100 and is spaced apart from the vibrating screening mechanism 100; the pre-loosening mechanism 300 is arranged at one end of the tobacco conveying mechanism 200 above the vibrating screening mechanism 100 and faces one side of the vibrating screening mechanism 100. The tobacco on the tobacco conveying mechanism 200 can fall on the pre-loosening mechanism 300 and be dispersed by the pre-loosening mechanism 300; the feeding mechanism 400 is arranged between the vibrating screening mechanism 100 and the pre-loosening mechanism 300. The feeding mechanism 400 includes a conveyor belt 493. The conveyor belt 493 can move relative to the vibrating screening mechanism 100 so that the pre-loosened tobacco can fall on different parts of the conveyor belt 493.

[0056] The present technical solution provides a tobacco feeding device, which includes a vibrating screening mechanism 100, a tobacco conveying mechanism 200, a pre-loosening mechanism 300, and a feeding mechanism 400. The vibrating screening mechanism 100 is used to screen tobacco. By extending one end of the tobacco conveying mechanism 200 above the vibrating screening mechanism 100, the tobacco to be screened can be conveyed to the top of the vibrating screening mechanism 100 by the tobacco conveying mechanism 200. The tobacco conveying mechanism 200 is located at one end of the vibrating screening mechanism 100 and is spaced apart from the vibrating screening mechanism 100, so that the pre-loosening mechanism 300 and the feeding mechanism 400 are arranged between the vibrating screening mechanism 100 and the tobacco conveying mechanism 200. Specifically, the pre-loosening mechanism 300 is arranged at one end of the tobacco conveying mechanism 200 above the vibrating screening mechanism 100 and toward one side of the vibrating screening mechanism 100, so that the tobacco conveyed by the tobacco conveying mechanism 200 to the vibrating screening mechanism 100 can fall on the pre-loosening mechanism 300, and thus be loosened by the pre-loosening mechanism 300. By arranging a feeding mechanism 400 between the vibrating screening mechanism 100 and the pre-loosening mechanism 300, and by arranging the conveyor belt 493 of the feeding mechanism 400 to be movable relative to the vibrating screening mechanism 100, so that the tobacco loosened by the pre-loosening mechanism 300 falls on different parts of the conveyor belt 493, the tobacco falling from the conveyor belt 493 onto the vibrating screening mechanism 100 is more evenly dispersed, thereby adjusting the amount of material located above the screening surface after the vibrating screening process, which serves as an important technical means for differential control of tobacco structure. Through the above structure, the amount of material located above the screening surface after vibration screening can be adjusted, so as to facilitate the adjustment of the total amount of material entering the filament re-cutting link according to the structure of the tobacco cut.

[0057] like Figure 1 and Figure 2 As shown, specifically, the feeding mechanism 400 includes a first frame 410, a frame 420 and a base 430, the first frame 410 is supported on the ground; the frame 420 is fixedly connected to the top of the first frame 410; the base 430 is movably connected to the frame 420, the base 430 can move relative to the frame 420, and the conveyor belt 493 is movably connected to the base 430.

[0058] In this embodiment, the first frame 410 is used to support the frame 420, and the frame 420 is used to support the base 430 and the conveyor belt 493. By fixedly connecting the frame 420 to the top of the first frame 410, the entire frame 420 can be supported above the vibrating screening mechanism 100. By movably connecting the base 430 to the frame 420, the falling path of the tobacco from the feeding mechanism 400 can be further changed, thereby changing the feeding position of the feeding mechanism 400 on the vibrating screening mechanism 100, and thus adjusting the amount of tobacco above the screening surface after processing by the vibrating screening mechanism 100. This allows the total amount of material entering the filament re-cutting stage to be online controlled based on the tobacco structure.

[0059] like Figure 1 As shown, specifically, the first bracket includes four first legs and four first beams, the four first legs are arranged at intervals, and the connecting line of the projections of the four first legs on the ground forms a rectangular structure. The first beam is connected to the top of the first leg. A first beam is arranged between the two first legs. The top of the first leg is located above the vibrating screening mechanism 100. The frame 420 is constructed to form a roughly rectangular hollow structure by connecting a plurality of main beams end to end. The base 430 is constructed to be a frame structure formed by connecting a plurality of plate-like structures end to end, the middle part is hollowed out, and the conveyor belt 493 is arranged in the hollow part of the frame.

[0060] like Figure 2 and Figure 5 As shown, in one embodiment, the feeding mechanism 400 further includes a transmission mechanism 440, which is disposed on the frame 420 and is in transmission connection with the base 430. The transmission mechanism 440 can drive the base 430 to move relative to the frame 420. By disposing the transmission mechanism 440 on the frame 420, the transmission mechanism 440 can drive the base 430 to move relative to the frame 420, thereby improving the automation performance of the movement of the base 430 relative to the frame 420.

[0061] like Figure 5As shown, further, the transmission mechanism 440 includes a first driving member 441, a first active shaft 442, a first driven shaft 443 and two transmission chains 444, the first driving member 441 is arranged on the frame 420; the first active shaft 442 is transmission-connected to the driving portion of the first driving member 441, and the first active shaft 442 is rotatably connected to the frame 420; the first driven shaft 443 is spaced apart from the first active shaft 442, and the first driven shaft 443 is rotatably connected to the frame 420; the two transmission chains 444 are spaced apart along the axial direction of the first active shaft 442, and each transmission chain 444 is stretched between the first active shaft 442 and the first driven shaft 443, and the base 430 is connected to the transmission chain 444; wherein, the first active shaft 442 rotates relative to the frame 420 under the drive of the driving portion of the first driving member 441 to drive the transmission chain 444 to move relative to the frame 420.

[0062] In this embodiment, the first driving member 441 is a motor, the motor base of the motor is fixedly connected to the frame 420, and the motor shaft of the motor is configured as the above-mentioned driving part. In other words, the first driving shaft 442 is transmission-connected to the motor shaft of the motor, and is transmission-connected to the first driving shaft 442 and the first driven shaft 443, so that the first driving shaft 442 is driven to rotate by the motor. Furthermore, in some embodiments, the first driving shaft 442 can be directly fixedly connected to the motor shaft of the motor; in other embodiments, a driving gear is provided on the rear of the motor, a driven gear is provided on the first driving shaft 442, and a belt is stretched between the driving gear and the driven gear, so that the driving gear is driven to rotate by the motor, thereby causing the driven gear to rotate relative to the frame 420 through the belt transmission, thereby driving the first driving shaft 442 to rotate relative to the frame 420. The first driving shaft 442 and the first driven shaft 443 are both rotationally connected to the frame 420 via bearings.

[0063] By stretching the transmission chain 444 between the first driving shaft 442 and the first driven shaft 443, and connecting the transmission chain 444 to the first driving shaft 442 and the first driven shaft 443, the first driving shaft 442 is driven to rotate by the motor, thereby driving the transmission chain 444 to move relative to the frame 420. Since the transmission chain 444 is connected to the base 430, the base 430 can be driven to move relative to the frame 420 through the transmission chain 444.

[0064] Specifically, two transmission chains 444 are respectively provided at both ends of the base 430 in the width direction. By providing two transmission chains 444, the stability of the movement of the base 430 can be improved. It should be understood that the transmission chain 444 can be a closed chain, or of course a disconnected chain. In addition, transmission gears are provided on the first driving shaft 442 and the first driven shaft 443, and the transmission chain 444 is engaged with the transmission gears. It can be understood that the movement direction of the transmission chain 444 can be changed by changing the direction of the motor shaft. Figure 3 As shown, in one embodiment, the feeding mechanism 400 further includes two guide rails 450 and a slider 460, and the two guide rails 450 are arranged on the frame 420 at intervals; at least two sliders 460 are respectively provided on opposite sides of the base 430, and the sliders 460 slide in cooperation with the guide rails 450.

[0065] Specifically, a guide rail 450 is provided at the top of each of the two widthwise end surfaces of the frame 420. At least two spaced-apart sliders 460 are provided on each of the two widthwise outer side surfaces of the base 430. The sliders 460 slidably engage with the guide rails 450 to ensure the stability of the base 430's movement relative to the frame 420. More specifically, a plurality of spaced-apart outer connecting plates are provided on the outer side surface of the base 430. The outer connecting plates are fixedly connected to the outer side surfaces of the base 430 via bolts, and the sliders 460 are also fixedly connected to the outer connecting plates via bolts.

[0066] like Figure 4 As shown, in one embodiment, the feeding mechanism 400 further includes a connector 470, which is connected to the base 430, and the transmission chain 444 is connected to the connector 470. Specifically, the connector 470 is disposed on top of the outer connecting plate and includes a base and a fastener. The base is fixedly connected to the outer connecting plate, and the fastener is threadedly engaged with the base. Two connectors 470 are disposed at intervals on the same outer connecting plate, and the transmission chain 444 is locked by the two fasteners.

[0067] like Figure 4 As shown, in one embodiment, the feeding mechanism 400 also includes a driving assembly 494, the driving assembly 494 includes a second driving member 4941, a second driving shaft 4942 and a second driven shaft 4943, the second driving member 4941 is arranged on the base 430; the second driving shaft 4942 is transmission-connected to the driving portion of the second driving member 4941, and the second driving shaft 4942 is rotatably connected to the base 430; the second driven shaft 4943 is spaced apart from the second driving shaft 4942, and the second driven shaft 4943 is rotatably connected to the base 430; wherein, the conveyor belt 493 is stretched between the second driving shaft 4942 and the second driven shaft 4943.

[0068] In this embodiment, the conveyor belt 493 is driven to move relative to the base 430 by the drive assembly 494. Specifically, the second drive member 4941 is a motor, the motor shaft of which is fixedly connected to the base 430, and the second driving shaft 4942 is connected to the motor shaft, or is connected to the motor shaft through a transmission component such as a transmission gear and a belt. The second driving shaft 4942 and the second driven shaft 4943 are rotatably connected to the base 430, and the conveyor belt 493 is stretched between the second driving shaft 4942 and the second driven shaft 4943, so that the conveyor belt 493 moves relative to the base 430, thereby driving the tobacco on the conveyor belt 493 to move relative to the base 430.

[0069] like Figure 2 As shown, in one embodiment, the feeding mechanism 400 also includes a material leveling mechanism 480, which includes a fixed seat 481 and a material shifting member 482. The fixed seat 481 is fixedly connected to the frame 420 and is located above the conveyor belt 493; the material shifting member 482 is rotatably connected to the fixed seat 481, and the material shifting member 482 is used to flatten the tobacco on the conveyor belt 493.

[0070] A material leveling mechanism 480 is provided above the conveyor belt 493 to flatten the tobacco shreds on the conveyor belt 493. Specifically, the material leveling mechanism 480 includes a fixing base 481 and a material shifting member 482. The fixing base 481 is fixedly connected to the frame 420 and provided above the conveyor belt 493, so that the material shifting member 482 is provided above the conveyor belt 493.

[0071] More specifically, the fixing seat 481 is a plate-like structure, which is fixedly connected to the frame 420 by bolts. A motor is also provided on the fixing seat 481. The material shifting piece 482 is a rod-like structure. The material shifting piece 482 is fixedly connected to the motor shaft of the motor through an adapter, so that the material shifting piece 482 is driven by the motor to rotate relative to the frame 420, thereby shifting the tobacco on the conveyor belt 493.

[0072] like Figure 1 As shown, in one embodiment, the vibration screening mechanism 100 includes a second frame 110, the second frame 110 is supported on the ground, the second frame 110 and the first frame 410 are staggered in the first direction X, and the second frame 110 and the first frame 410 are equal in size in the second direction.

[0073] It should be noted that in this embodiment, the first direction X is the direction of movement of the base 430 and the conveyor belt 493, which can also be considered the length direction of the feeding device, and the second direction is the width direction of the conveyor belt 493. The second frame 110 is used to support the screening components of the vibrating screening mechanism 100. By staggering the first frame 410 and the second frame 110 in the first direction X, the vibrating screening mechanism 100 and the feeding mechanism 400 are rationally arranged while preventing interference between the two. Furthermore, by setting the first frame 410 and the second frame 110 to be of the same size in the second direction, the entire tobacco feeding device does not occupy too much space.

[0074] like Figure 1 As shown, in one embodiment, the feeding mechanism 400 also includes a distance measuring member 491 and a position reflecting plate 492. The distance measuring member 491 is arranged on the first frame 410; the position reflecting plate 492 is arranged on the base 430, and the installation position of the distance measuring member 491 on the first frame 410 is defined as a reference point. The distance measuring member 491 can measure the distance between the position reflecting plate 492 and the reference point.

[0075] The distance measuring member 491 and the position reflector 492 work together to measure the distance between the position reflector 492 and the reference point, thereby measuring the relative position of the base 430 and the frame 420. This facilitates adjusting the movement of the base 430 by adjusting the relative distance between the base 430 and the frame 420, thereby adjusting the feeding path. Specifically, the distance measuring member 491 is a laser rangefinder. When the distance between the laser rangefinder and the position reflector 492 is at its maximum, the conveyor belt 493 conveys along the first direction X, away from the laser rangefinder, resulting in the longest vibratory screening path and the least amount of material located on the upper surface of the screening surface after the vibratory screening process. When the distance between the laser rangefinder and the position reflector 492 is at its minimum, the conveyor belt 493 conveys along the first direction X, toward the laser rangefinder, resulting in the shortest vibratory screening path and the greatest amount of material located on the upper surface of the screening surface after the vibratory screening process.

[0076] Reference Figures 1 to 5 It is understood that the working process of the tobacco feeding device provided in the embodiment of the present invention is as follows:

[0077] Before production begins, the conveyor assembly base 430, driven by the transmission mechanism 440, moves along the first direction X to a predetermined distance between the distance measuring element 491 and the position reflector 492, based on the tobacco content. This determines the direction of movement of the conveyor belt 493, further determining the direction of material transport by the conveyor belt 493. When the tobacco conveying mechanism 200 is in operation, the material is first processed by the pre-loosening mechanism 300 before falling onto the conveyor belt 493 of the feeding mechanism 400. The leveling mechanism 480 evenly distributes the tobacco on the conveyor belt 493, which then falls into the vibrating screening mechanism 100.

[0078] When the distance between the laser rangefinder and the position reflector 492 is the largest, the conveyor belt 493 conveys along the first direction X in a direction away from the laser rangefinder, the vibration screening path is the longest, and the amount of material located on the upper layer of the screening surface after vibration screening is the smallest; when the distance between the laser rangefinder and the position reflector 492 is the smallest, the conveyor belt 493 conveys along the first direction X in a direction close to the laser rangefinder, the vibration screening path is the shortest, and the amount of material located on the upper layer of the screening surface after vibration screening is the largest.

[0079] According to the tobacco feeding device provided in an embodiment of the present invention, by setting the distance between the distance measuring piece 491 and the position reflection plate 492 and the rotation direction of the conveyor belt 493, different vibration screening path lengths can be achieved for different materials, thereby achieving the desired differentiated processing effect.

[0080] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A tobacco feeding device, characterized in that: The tobacco feeding device comprises: Vibrating screening mechanism, supported on the ground; a tobacco conveying mechanism, one end of which extends above the vibrating screening mechanism and is spaced apart from the vibrating screening mechanism; a pre-loosening mechanism, provided at one end of the tobacco conveying mechanism above the vibrating screening mechanism and facing one side of the vibrating screening mechanism, so that tobacco on the tobacco conveying mechanism can fall onto the pre-loosening mechanism and be dispersed by the pre-loosening mechanism; The feeding mechanism is arranged between the vibrating screening mechanism and the pre-loosening mechanism. The feeding mechanism includes a conveyor belt. The conveyor belt can move relative to the vibrating screening mechanism so that the tobacco shreds after the pre-loosening can fall on different parts of the conveyor belt.

2. The tobacco feeding device according to claim 1, characterized in that: The feeding mechanism comprises: a first frame supported on the ground; a frame fixedly connected to the top of the first frame; The base is movably connected to the frame, the base can move relative to the frame, and the conveyor belt is movably connected to the base.

3. The tobacco feeding device according to claim 2, characterized in that: The feeding mechanism also includes: The transmission mechanism is arranged on the frame and is in transmission connection with the base, and the transmission mechanism can drive the base to move relative to the frame.

4. The tobacco feeding device according to claim 3, characterized in that: The transmission mechanism comprises: A first driving member is provided on the frame; a first driving shaft, drivingly connected to the driving portion of the first driving member, the first driving shaft being rotatably connected to the frame; a first driven shaft spaced apart from the first driving shaft, the first driven shaft being rotatably connected to the frame; Two transmission chains are spaced apart along the axial direction of the first driving shaft, each transmission chain is stretched between the first driving shaft and the first driven shaft and is in transmission connection with the first driving shaft and the first driven shaft, and the base is connected to the transmission chain; Wherein, the first driving shaft is driven by the driving portion of the first driving member to rotate relative to the frame, so as to drive the transmission chain to move relative to the frame.

5. The tobacco feeding device according to claim 4, characterized in that: The feeding mechanism also includes: Two guide rails, the two guide rails are arranged on the frame at intervals; Slide blocks: at least two slide blocks are respectively provided on opposite sides of the base, and the slide blocks are slidably matched with the guide rails.

6. The tobacco feeding device according to claim 4, characterized in that: The feeding mechanism also includes: A connecting member is connected to the base, and the transmission chain is connected to the connecting member.

7. The tobacco feeding device according to claim 2, characterized in that: The feeding mechanism further includes a drive assembly, which includes: A second driving member is provided on the base; a second driving shaft, drivingly connected to the driving portion of the second driving member, and the second driving shaft is rotatably connected to the base; a second driven shaft, spaced apart from the second driving shaft, the second driven shaft being rotatably connected to the base; Wherein, the conveyor belt is stretched between the second driving shaft and the second driven shaft.

8. The tobacco feeding device according to claim 2, characterized in that: The feeding mechanism further includes a material screed mechanism, and the material screed mechanism includes: A fixed seat, fixedly connected to the frame and located above the conveyor belt; The material shifting member is rotatably connected to the fixing seat, and the material shifting member is used for flattening the tobacco shreds on the conveyor belt.

9. The tobacco feeding device according to claim 2, characterized in that: The vibration screening mechanism comprises: a second frame, the second frame being supported on the ground, the second frame being staggered with the first frame in the first direction, and the second frame and the first frame having the same size in the second direction; The first direction and the second direction are perpendicular to each other.

10. The tobacco feeding device according to claim 2, characterized in that: The feeding mechanism also includes: a distance measuring component, provided on the first frame; A position reflector is provided on the base, defining the installation position of the distance measuring component on the first rack as a reference point, and the distance measuring component can measure the distance between the position reflector and the reference point.

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