Tobacco shred vibrating screen

Abstract

The utility model relates to a tobacco shred vibrating screen which comprises a support. The screen frames are provided with screen holes, the screen frames are arranged on the support in a vibrating mode, the number of the screen frames is multiple, and the screen frames are arranged on the support at intervals in the vertical direction; wherein a discharging opening is formed in the downstream end of the screen frame in the moving direction of materials on the screen frame. According to the tobacco shred vibrating screen, the multiple screen frames are arranged on the support in the vertical direction, when the screen frames vibrate, multi-layer material screening and filtering can be formed in the vertical direction, the discharging openings are further formed in the downstream ends of the screen frames in the moving direction of materials, large-size materials can be discharged through the discharging openings, and the screening efficiency is improved. The small-size materials are screened for multiple times from top to bottom, the screening efficiency of the materials is greatly improved, the multiple screening frames are vertically arranged, the space can be more fully and effectively utilized, the situation that the space is excessively occupied is avoided, and the space layout design of a plant is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the tobacco processing technical field, especially to a tobacco vibrating screen. BACKGROUND

[0002] In the process of tobacco processing, a vibrating screen is needed to separate tobacco stems from tobacco. The vibrating screen currently used generally comprises a rack, a screen is arranged on the rack, and the screen can vibrate at a certain frequency under the drive of a motor on the rack. After the tobacco is conveyed to the screen, the screen completes the screening of the tobacco through vibration. The vibrating screen of this structure has some defects in application. Since the screen on the rack is long, in order to improve the screening efficiency of the tobacco, the length of the screen can be increased to increase the screening path length of the tobacco. In this way, the length of the vibrating screen is obviously increased, which increases the floor area of the vibrating screen and is not conducive to the space layout in the factory building. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide a tobacco vibrating screen which can improve the screening efficiency of tobacco and avoid the defect of too large floor area, thereby effectively solving the problems existing in the prior art.

[0004] To this end, the present application provides a tobacco vibrating screen, comprising:

[0005] a support;

[0006] a screen frame having screen holes, the screen frame being vibratably arranged on the support, and the number of screen frames being multiple, each screen frame being arranged on the support in a vertical direction.

[0007] Among them, along the moving direction of the material on the screen frame, the downstream end of the screen frame is provided with a discharge port.

[0008] In some possible implementation manners, the screen frame comprises an outer frame, the outer frame is in an enclosed shape, the inner part of the outer frame is provided with a screen, and a gap is arranged between one end of the screen and the outer frame to form the discharge port.

[0009] In some possible implementation manners, the screen frame is provided with a material scraping assembly reciprocally movable along the moving direction of the material to clean the material on the screen.

[0010] In some possible implementation manners, the material scraping assembly comprises a brush, both ends of the brush are slidably arranged on the outer frame, a first threaded rod is rotatably arranged on the outer frame, the first threaded rod is threadedly matched with the brush, and the first threaded rod is rotated to drive the brush to reciprocally move.

[0011] In some possible implementation manners, the screen frame is arranged obliquely along the direction in which the material moves, and the height of the upstream end of the screen frame is higher than the height of the downstream end of the screen frame.

[0012] In some possible implementation manners, a guide chute is arranged below each screen frame on the support, one end of the guide chute extends below the discharge port, and one end of the guide chute extends out of the support to guide the material discharged at the discharge port.

[0013] In some possible implementation manners, the tobacco vibration screen further comprises a conveying belt, one end of the conveying belt extends above the uppermost screen frame, and the conveying belt is configured to convey the material to the screen frame.

[0014] In some possible implementation manners, the tobacco vibration screen further comprises a guide rail, one end of the guide rail is close to the conveying belt along the extension direction of the guide rail, the other end of the guide rail extends away from the conveying belt, and the guide rail movably arranged with a feeding gripper configured to feed the material to the conveying belt.

[0015] In some possible implementation manners, the guide rail is rotatably arranged with a second threaded rod, the second threaded rod is threadedly matched with the feeding gripper, and the second threaded rod is rotated to drive the feeding gripper to reciprocate along the guide rail.

[0016] In some possible implementation manners, the feeding gripper comprises a movable seat, an extension rod and a material clamp, the movable seat is threadedly matched with the second threaded rod, and the material clamp is connected to the movable seat through the extension rod, and the material clamp is configured to clamp the material.

[0017] According to the tobacco vibration screen provided in the embodiments of the present application, a plurality of screen frames are arranged along the vertical direction on the support, when the screen frames vibrate, a plurality of levels of material screening and filtering can be formed in the vertical direction, and along the moving direction of the material, a discharge port is further arranged at the downstream end of each screen frame, so that the large-size material can be discharged through the discharge port, and the small-size material is screened multiple times from top to bottom, which greatly improves the screening efficiency of the material, and the plurality of screen frames are arranged vertically, so that the space can be more fully and effectively utilized, and the occupation of the floor area is avoided, which is beneficial to the spatial layout design of the factory building. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure diagram of the tobacco vibration screen provided in the embodiments of the present application is shown in the figure.

[0019] Figure 2 Figure 1 A local enlarged view of A in the figure.

[0020] Figure 3 Figure 1 A local enlarged view of B in the figure.

[0021] Figure 4A structure schematic view of another perspective of the tobacco vibration sieve provided by the embodiment of the present application;

[0022] Figure 5 Figure 4 A local enlarged view at C;

[0023] Figure 6 A structure schematic view of vertical arrangement of multiple sieve plates and multiple material guide grooves provided by the embodiment of the present application;

[0024] Figure 7 For Figure 6 A local enlarged view at D;

[0025] Figure 8 A structure schematic view of vertical arrangement of multiple sieve plates provided by the embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0027] As Figures 1-8 shown, the embodiment of the present application provides a tobacco vibration sieve applied in the cut tobacco process of a cigarette factory. When the cigarette factory processes cut tobacco, the cut tobacco needs to be filtered and screened to filter out larger size materials such as tobacco stems in the cut tobacco. At present, a vibration sieve is usually used to screen and filter the cut tobacco. The vibration sieve includes a rack, a screen is arranged on the rack, and a motor is further arranged on the rack. Under the driving of the motor, the screen can vibrate on the rack, so that the cut tobacco on the screen is screened and filtered. In actual application, it is found that if the screening and filtering efficiency of the cut tobacco is to be improved, the length of the screen needs to be increased to increase the effective length of the cut tobacco screening path. However, at the same time, the length of the equipment is too long, which increases the floor area of the vibration sieve and is not conducive to the layout design of the plant space. The tobacco vibration sieve of the present application aims to improve the filtering efficiency of the cut tobacco while avoiding the phenomenon of too large floor area.

[0028] The tobacco vibration sieve comprises a support 100 and a sieve frame 200, the support 100 is of a frame structure, the support 100 has an accommodating space inside, the accommodating space is used for accommodating the sieve frame 200, the sieve frame 200 has sieve holes, thereby realizing the screening of the tobacco, the sieve frame 200 is arranged on the support 100 in a vibration mode, and the number of the sieve frames 200 is multiple, each sieve frame 200 is arranged on the support 100 in a vertical direction, the multiple sieve frames 200 are arranged in the internal space of the support 100 in the vertical direction, when the sieve frame 200 vibrates on the support 100, the tobacco is screened and filtered while moving on the sieve frame 200, a discharge port 300 is arranged at the downstream end of the sieve frame 200 along the moving direction of the tobacco material on the sieve frame 200, in the process of screening the material by the sieve frame 200, small-size material can pass through the sieve holes on the sieve frame 200 and fall on the next sieve frame 200, and large-size material moves to the downstream end of the sieve frame 200, that is, is discharged through the discharge port 300, thereby realizing the screening of the material, the material is screened by the multiple sieve frames 200, multi-level screening is realized, the screening path length of the material is increased, thereby realizing the efficient screening of the tobacco, in addition, the multiple sieve frames 200 are arranged in a vertical direction, a vertical screening mode is formed, the horizontal extension is avoided, the defect of the long horizontal length of the equipment is avoided, the floor area is effectively reduced, and the space layout design in the factory building is facilitated.

[0029] In some embodiments, for two adjacent sieve frames 200 in the vertical direction, the moving directions of the materials on the two adjacent sieve frames 200 in the horizontal direction are opposite.

[0030] Preferably, the sieve frame 200 comprises an outer frame 201, the outer frame 201 is of a rectangular enclosure shape, a sieve net 202 is arranged in the inner part of the outer frame 201, the sieve net 202 is provided with sieve holes, a gap is arranged between one end of the sieve net 202 and the outer frame 201, the gap constitutes the discharge port 300, the outer frame 201 is connected with the support 100, the outer frame 201 vibrates on the support 100, thereby driving the sieve net 202 to vibrate, for the realization of vibration, for example, a driving motor can be arranged on the support 100, a cam is coaxially arranged on the output end of the driving motor, a driving shaft is arranged on the protruding side of the cam, the driving shaft is parallel to the axis direction of the driving motor, the above-mentioned driving shaft and the outer frame 201 are rotationally connected, four groups of the driving motor, the cam and the driving shaft are arranged corresponding to each sieve frame 200, when the driving motor drives the cam to rotate, the sieve frame 200 is driven to rotate through the driving shaft, in addition, other connection structures in the existing vibration sieve can also be used, as long as the vibration of the outer frame 201 on the support 100 is realized.

[0031] In this embodiment, the arrangement of the discharge port 300 makes it more convenient to collect large-size materials and small-size materials separately. The small-size materials fall through the screen 202 of the lowermost screen frame 200 and are collected by the designated collection device. The discharge port 300 of each screen frame 200 can also be provided with a designated collection device for collection.

[0032] More preferably, a scraping assembly is reciprocally arranged on the screen frame 200 along the moving direction of the materials. The scraping assembly can clean the materials on the screen 202, reciprocally scrape the residual materials on the screen, facilitate the screening and filtering of the materials, and avoid damage caused by the residual materials on the screen 202. The operation of the scraping assembly is preferably performed in the last stage of the screening process to avoid interference with the movement of the materials during the normal screening process. After the scraping assembly cleans the screen 202, it moves to the upstream end of the screen frame 200 to avoid affecting the discharge of the large-size materials at the discharge port 300.

[0033] In an example, the scraping assembly includes a brush 401. The two ends of the brush 401 are slidably arranged on the opposite sides of the outer frame 201, for example, a sliding groove 402 can be arranged on each of the opposite sides of the outer frame 201, and the two ends of the brush 401 can be fitted into the sliding grooves 402 and slide. A first threaded rod 403 is rotatably arranged on the outer frame 201, and the first threaded rod 403 is threadedly connected with the brush 401. The first threaded rod 403 rotates to drive the brush 401 to reciprocally move. Preferably, the first threaded rod 403 is arranged along the sliding grooves 402, and the two ends of the first threaded rod 403 are rotatably installed in the sliding grooves 402 of the outer frame 201 through bearings. A driving motor can also be arranged on the outer frame 201. The driving motor is drivingly connected with the first threaded rod 403. The driving motor drives the first threaded rod 403 to rotate, and the driving motor controls the first threaded rod 403 to reverse, thereby achieving the reciprocating movement of the brush 401.

[0034] More preferably, the screen frame 200 is arranged to be inclined along the moving direction of the materials on the screen frame 200. The height of the upstream end of the screen frame 200 is higher than the height of the downstream end of the screen frame 200. The outer frame 201 is in a rectangular closed shape, and the screen 202 is connected to the inner circumferential side of the outer frame 201, so that the screen 202 is also in an inclined state. In this way, the movement of the materials on the screen 202 is smoother, which facilitates the screening and filtering of the materials. In some embodiments, the inclination directions of two adjacent screen frames 200 are opposite, so that the materials can be folded back, which facilitates the screening and filtering of the materials.

[0035] More preferably, a material guide groove 500 is arranged on the support 100 below each screen frame 200, and the material guide groove 500 is arranged below the discharge port 300 of the corresponding screen frame 200, one end of the material guide groove 500 extends below the discharge port 300, and the other end of the material guide groove 500 extends out of the horizontal projection range of the support 100, so as to guide the material discharged from the discharge port 300, and the large-size material on each screen frame 200 is conveniently guided to the designated collecting device through the material guide groove 500.

[0036] Preferably, the tobacco vibration screen further comprises a conveying belt 600, one end of the conveying belt 600 extends above the uppermost screen frame 200, and the conveying belt 600 can continuously and conveniently convey the material to the uppermost screen frame 200.

[0037] More preferably, a guide rail 701 is further included, the guide rail 701 is horizontally arranged, along the horizontal extension direction of the guide rail 701, one end of the guide rail 701 is close to the conveying belt 600, and the other end of the guide rail 701 extends away from the conveying belt 600, a feeding gripper is movably arranged on the guide rail 701, the feeding gripper feeds the material to the conveying belt 600, and then conveniently feeds the material to the screen frame 200, the guide rail 701 can be arranged on the support 100 through a connecting frame or the like, or can be arranged on the ground through a connecting frame or the like, a second threaded rod 702 is rotatably arranged on the guide rail 701, the second threaded rod 702 is arranged along the guide rail 701, the second threaded rod 702 and the feeding gripper are threadedly matched, the second threaded rod 702 rotates to drive the feeding gripper to reciprocatingly move and adjust, and the feeding of the conveying belt 600 is realized.

[0038] In an example, the feeding gripper comprises a movable seat 703, a telescopic rod 704 and a material clamp 705, the movable seat 703 is threadedly connected with the second threaded rod 702, the material clamp 705 is connected with the movable seat 703 through the telescopic rod 704, the material clamp 705 is used for clamping the material, the height of the material clamp 705 relative to the movable seat 703 can be adjusted through the telescopic rod 704, which is convenient for layout, the material clamp 705 can be a mechanical hand that can be opened and closed, which is convenient for clamping and releasing the material, in the embodiment, a slide rod 706 can be arranged along the guide rail 701, the slide rod 706 and the second threaded rod 702 are arranged in parallel and spaced apart, the slide rod 706 is connected with both ends of the guide rail 701, the second threaded rod 702 is rotatably mounted at both ends of the guide rail 701 through bearings, the movable seat 703 is movably arranged in the slide rod 706, the movable seat 703 is threadedly connected with the second threaded rod 702, a driving motor can also be arranged on the guide rail 701, the driving motor is drivingly connected with the second threaded rod 702, the second threaded rod 702 is driven to rotate by the driving motor, and then the reciprocating movement adjustment of the movable seat 703 is realized, that is, the reciprocating movement adjustment of the material clamp 705 in the horizontal direction is realized, the material clamp 705 supplies the material to the conveying belt 600, then the conveying belt 600 supplies the material to the uppermost sieve frame 200, and then the vertical multi-level screening of the material is completed, and the large-size material and the small-size material are collected respectively.

[0039] It should be noted that the phrases "one embodiment," "an embodiment," "some embodiments," "exemplary embodiment," "one specific embodiment," and "some embodiments" as may occur in the specification, is not to be construed as applying to the same embodiments, unless otherwise indicated. Further, such phrases of comprising, consisting of, or consisting essentially of, do not preclude the addition of insubstantial changes. For instance, an embodiment comprising A, B, and C also covers embodiments that include A, B, and C as well as insubstantial changes of A, B, and C.

[0040] It will be readily understood that the terms "on", "above", and "upper" as used herein, shall not be construed to mean "directly on" unless expressly indicated from the context. Thus, for example, "on" shall mean the layered arrangement of layers or components where elements between such layers or components can be present or absent, and "above" or "upper" shall mean that there are no elements between such layers or components (i.e., directly on).

[0041] Moreover, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0042] Note that, in the present document, the terms "first", "second", and the like, merely identify content distinctions, but do not necessarily require or imply any actual relationship or order between the entities or actions so identified. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0043] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, but not limiting, the technical solutions of the present application; even though the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or equivalently replace some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vibrating screen for tobacco shreds, characterized in that, include: support; A sieve frame having sieve holes is vibratingly mounted on a support, and there are multiple sieve frames, each sieve frame being arranged at intervals along the vertical direction on the support. A conveyor belt, one end of which extends above the uppermost screen frame, the conveyor belt being used to convey material to the screen frame; and, The guide rail extends along its direction, with one end close to the conveyor belt and the other end extending away from the conveyor belt. A feeding gripper is movably provided on the guide rail to supply material to the conveyor belt. A second threaded rod is rotatably provided on the guide rail, and the second threaded rod is threadedly engaged with the feeding gripper. The rotation of the second threaded rod drives the feeding gripper to reciprocate along the guide rail. Along the direction of material movement on the screen frame, a discharge port is provided at the downstream end of the screen frame; The screen frame is inclined along the direction of material movement, and the height of the upstream end of the screen frame is higher than the height of the downstream end of the screen frame. The two adjacent screen frames are tilted in opposite directions.

2. The tobacco shredder vibrating screen according to claim 1, characterized in that: The screen frame includes an outer frame that is enclosed, and a screen is installed inside the outer frame. A gap is provided between one end of the screen and the outer frame to form a discharge port.

3. The tobacco shred vibrating screen according to claim 2, characterized in that: The screen frame is equipped with a scraping component that can reciprocate along the material movement direction to clean the material on the screen.

4. A vibrating screen for tobacco shreds according to claim 3, characterized in that: The scraping assembly includes a brush with both ends slidably mounted on an outer frame. A first threaded rod is rotatably mounted on the outer frame. The first threaded rod is threadedly engaged with the brush, and the rotation of the first threaded rod drives the brush to reciprocate.

5. A vibrating screen for tobacco shreds according to claim 1, characterized in that: Each screen frame on the support is provided with a guide chute below it. One end of the guide chute extends to the bottom of the discharge port and the other end extends out of the support to guide the material discharged from the discharge port.

6. A vibrating screen for tobacco shreds according to claim 1, characterized in that: The feeding gripper includes a movable seat, a telescopic rod, and a material clamp. The movable seat and the second threaded rod are threaded together. The material clamp is connected to the movable seat through the telescopic rod and is used to clamp materials.

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