A device for removing and quickly cleaning the flax tow of a vibrating conveyor

Abstract

The utility model relates to a kind of tow removing and quick cleaning device for vibration conveyor, belong to tobacco machinery technical field.The device includes tow quick cleaning plate and tow removing brush plate, both are layered and set on vibration conveyor groove body, wherein the height of brush of tow removing brush plate is higher than tow quick cleaning plate.When tobacco containing tow and other sundries passes, tow is effectively entangled and removed by brush;In the material gap, tow is pushed out by driving mechanism control tow quick cleaning plate rising, and then quick cleaning is carried out.The utility model overcomes the problem of low efficiency, time-consuming and laborious caused by the need to frequently replace tow buckle of existing tow removing roller, realizes the efficient, continuous removal and quick cleaning of tow, significantly improves production efficiency, reduces labor cost, and the structure is simple, convenient to operate, and practical.

Description

Technical Field

[0001] This utility model relates to the field of tobacco processing machinery technology, and in particular to a device for removing and quickly cleaning hemp fibers from a vibrating conveyor. Specifically, it relates to a device for removing hemp ropes, hemp fibers, and other impurities mixed in with tobacco leaves, which is installed on a vibrating conveyor and can efficiently remove hemp fibers and achieve rapid cleaning. Background Technology

[0002] During the tobacco processing and re-drying stages, raw tobacco leaves often contain impurities such as hemp ropes and fibers from the burlap sacks. If these impurities are not effectively removed, they will directly affect the quality and taste of the cigarettes. Therefore, removing hemp fibers is a crucial step in tobacco processing.

[0003] Currently, the main technical solutions for hemp fiber removal equipment commonly used by domestic tobacco companies are as follows: Hemp fiber removal roller assembly: This is the most common type of equipment, which uses Velcro (or "hemp fiber fasteners") to adhere hemp fibers to the surface of the rollers. However, this method has a significant drawback: once the surface of the Velcro is covered with hemp fibers, its adhesive ability drops sharply, requiring the machine to be stopped and replaced with new Velcro. The replacement process is not only time-consuming and labor-intensive (usually taking 1-2 hours), severely impacting production continuity, but also increases labor costs and consumable expenses.

[0004] Double-roller alternating operation hemp fiber removal machine: To solve the problem of cleaning when a single roller stops, a device equipped with two sets of hemp fiber rollers has emerged. The material flow direction is switched by a flap gate at the bottom of the vibrating conveyor, allowing one set of hemp fiber rollers to operate while the other set stops for manual cleaning. Although this method allows for continuous operation, the equipment structure is complex, occupies a large space, and still requires manual intervention for cleaning, resulting in a low degree of automation.

[0005] A hemp fiber removal device with a mobile cleaning assembly: For example, a novel hemp fiber removal device disclosed in CN218650228U uses multiple parallel hemp fiber rollers and is equipped with a three-axis gantry-driven extraction hood for cleaning. This device achieves online cleaning, but the system is complex, including multiple components such as a three-axis gantry, extraction hood, and dust collection trolley, resulting in high manufacturing costs and demanding maintenance requirements.

[0006] Non-powered worm gear type removal device: such as a certain patented technology, it uses a worm gear structure roller, which uses the material flow to drive the roller to rotate and remove hemp fibers. This device requires no power and has a relatively simple structure, but its cleaning method may still not be convenient or efficient enough, and its applicability to vibrating conveyors may be limited.

[0007] In summary, existing hemp fiber removal technologies either suffer from inconvenient cleaning and reduced production efficiency, or are complex and costly. Therefore, the industry urgently needs a device with a relatively simple structure, moderate manufacturing cost, high hemp fiber removal efficiency, and the ability to achieve rapid and convenient cleaning, to adapt to the working characteristics of vibrating conveyors and meet the demands of efficient and continuous modern tobacco production.

[0008] This utility model proposes an innovative solution to address the shortcomings of the existing technology. Utility Model Content

[0009] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a hemp fiber removal and rapid cleaning device for vibrating conveyors. Specifically, this utility model aims to solve the following technical problems: solving the problem of low production efficiency caused by the frequent shutdowns required to replace hemp fiber clips in existing hemp fiber removal rollers; solving the problems of complex structure, high cost, and inconvenient maintenance of complex hemp fiber removal devices; providing a device that can be integrated into a vibrating conveyor to achieve continuous, efficient removal and rapid, convenient cleaning of hemp fibers; reducing the manual labor intensity and time cost of hemp fiber cleaning operations; and improving the automation level and overall economic efficiency of hemp fiber removal operations.

[0010] The above-mentioned utility model objective is achieved through the following technical solution: This utility model provides a hemp fiber removal and rapid cleaning device for a vibrating conveyor, including a hemp fiber rapid cleaning plate and a hemp fiber removal brush plate. The hemp fiber rapid cleaning plate and the hemp fiber removal brush plate are installed on the trough of the vibrating conveyor. The surface of the hemp fiber removal brush plate is provided with a brush, and the height of the brush is higher than the working surface of the hemp fiber rapid cleaning plate, forming a double-layer structure of upper cleaning and lower removal.

[0011] According to one embodiment of the present invention, the hemp fiber quick cleaning plate is vertically mounted on the vibrating conveyor trough and is connected to a lifting mechanism that drives its lifting and lowering.

[0012] According to one embodiment of the present invention, the lifting mechanism is an electric push rod, a hydraulic cylinder, or a pneumatic cylinder; the present invention also provides a device that further includes a control unit for controlling the movement of the lifting mechanism, as well as a jog control button and a material detection sensor connected to the control unit via signal.

[0013] According to one embodiment of the present invention, the brush material of the hemp fiber removal brush plate is nylon, polypropylene or metal wire; the height of the brush is 10mm to 50mm and the density is 3-5 bristles per square centimeter.

[0014] According to one embodiment of the present invention, the working surface of the hemp fiber quick cleaning plate is a smooth surface, and its material is stainless steel, polytetrafluoroethylene or ceramic; the thickness of the hemp fiber quick cleaning plate is 2mm to 10mm.

[0015] According to one embodiment of the present invention, a cleaning auxiliary device is also included, which is a translational brush mechanism and / or a negative pressure dust collection device disposed on the side of the hemp fiber removal brush plate, for cleaning the pushed-out hemp fibers.

[0016] According to one embodiment of the present invention, the installation angle of the hemp fiber quick cleaning plate and the hemp fiber removal brush plate relative to the bottom plane of the vibrating conveyor trough is adjustable from 0 to 30 degrees.

[0017] According to one embodiment of the present invention, a safety cover is provided on the outside of the device, which covers the top and sides of the hemp fiber quick cleaning plate and the hemp fiber removal brush plate.

[0018] According to one embodiment of the present invention, the hemp fiber removal brush plate is a detachable structure and is fixed to the vibrating conveyor trough by bolt connection or snap connection.

[0019] According to one embodiment of the present invention, a guide mechanism is provided between the lifting mechanism and the hemp fiber quick cleaning plate, and the guide mechanism is a guide post and guide sleeve structure or a linear guide rail structure.

[0020] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects: High efficiency and continuity: This invention utilizes the brush winding principle to remove hemp fibers, resulting in high removal efficiency. More importantly, it achieves rapid cleaning through a liftable hemp fiber cleaning plate, eliminating the need for downtime to replace consumables like with traditional hemp fiber rollers. This greatly ensures production continuity and improves overall production efficiency.

[0021] Simple structure and low cost: The core components of this invention are only a hemp fiber quick-cleaning plate and a removal plate with a brush, making the structure very simple and compact, easy to manufacture and install. Compared with existing devices that use complex systems such as three-axis gantry and exhaust hood, the manufacturing and maintenance costs of this invention are significantly reduced.

[0022] Easy to operate and quick to clean: The cleaning process can be triggered by a button or automatically by a sensor. The lifting mechanism pushes the hemp fiber cleaning plate up to push out the hemp fibers. The action is rapid and the entire cleaning process can be completed in tens of seconds, which saves a lot of time compared to replacing hemp fiber clips or manually cleaning hemp fiber rollers, and greatly reduces the labor intensity of operators.

[0023] High space utilization and strong adaptability: This device can be directly integrated into the vibrating conveyor trough, occupying little space, making it particularly suitable for installation in process sections with compact equipment layouts (such as between the leaf trimmer's air distribution box outlet and the vibrating conveyor). Its adjustable angle design allows it to adapt to different process parameters.

[0024] Highly practical and easy to promote: The principle of this utility model is simple and easy for production site personnel to understand and master. It has a low failure rate and is easy to maintain. It is very suitable for the actual situation of tobacco industry sites and has good prospects for promotion and application.

[0025] Enhancing automation: By integrating sensors and control units, the cleaning of hemp fibers can be automated, reducing reliance on manual operation and representing a beneficial practice towards intelligent manufacturing.

[0026] The core technological advantage of this vibrating conveyor's hemp fiber removal and rapid cleaning device lies in its unique combination of a double-layer mechanical structure (a rapid hemp fiber cleaning plate and a hemp fiber removal brush plate) and a lifting and cleaning mechanism. This fundamentally solves the industry pain point of traditional hemp fiber removal equipment requiring downtime for consumable replacement or cleaning. During operation, the brushes on the lower layer efficiently wrap around the hemp fibers in the tobacco leaves, while the upper cleaning plate can quickly rise during production breaks, pushing the hemp fibers out of the brushes, achieving continuous, uninterrupted operation online. This design integrates removal and cleaning functions, significantly improving production efficiency and avoiding the waste of time and labor costs caused by frequent downtime for replacing hemp fiber clips or rollers.

[0027] The ingenuity of this device is also reflected in its simple structure and high reliability. Compared with some existing complex systems that use a three-axis gantry-driven dust collection hood or a ring conveyor chain to switch hemp fiber rollers, this invention mainly relies on the coordinated work of basic mechanical components such as brush plates, cleaning plates, and lifting mechanisms. Its structure is simpler and more compact, reducing manufacturing costs and maintenance difficulty. At the same time, it avoids the risk of aging and shedding material contaminating tobacco leaves that may occur with nylon adhesive cloth, or the stringent installation distance requirements of electrostatic cleaning devices. Its purely mechanical working principle offers greater adaptability and more stable operation, ensuring the purity of the tobacco leaves.

[0028] Ultimately, the comprehensive benefits brought by this device highlight its technological advancements. It not only achieves an effective operating rate of over 95%, but more importantly, by reducing cleaning time from several hours in traditional methods to just minutes or even achieving automated, instantaneous cleaning, it greatly ensures the continuity and stability of the production line. This efficient and low-cost hemp fiber processing capability provides a practical solution for tobacco companies to improve quality and efficiency and achieve cleaner production, aligning with the industry's development direction towards intelligent and continuous production. Attached Figure Description

[0029] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0030] Figure 2 This is a side view of the present invention (when the tobacco leaves pass through, the hemp fiber quick cleaning plate and the hemp fiber removal brush plate are in close contact).

[0031] Figure 3 This is a side view of the present invention (hemp fiber quick cleaning plate in the rising state).

[0032] Figure 4 This is a side view of the present invention (the hemp fiber quick cleaning plate rises, pushing the hemp fibers in the middle of the brush out of the top of the brush).

[0033] Attached reference numerals: 1. Hemp fiber quick cleaning plate; 2. Hemp fiber removal brush; 21. Brush; 3. Vibrating conveyor trough. Detailed Implementation

[0034] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Example 1: Reference Figures 1-4This utility model discloses a hemp fiber removal and rapid cleaning device for a vibrating conveyor, comprising a hemp fiber rapid cleaning plate 1 and a hemp fiber removal brush plate 2. The hemp fiber rapid cleaning plate 1 and the hemp fiber removal brush plate 2 are installed on the vibrating conveyor trough 3. The surface of the hemp fiber removal brush plate 2 is provided with brushes 21, and the height of the brushes 21 is higher than the working surface of the hemp fiber rapid cleaning plate 1, forming a double-layer structure of upper cleaning and lower removal. The hemp fiber removal brush plate 2 is a detachable structure, fixed to the vibrating conveyor trough 3 by bolts or clips. The hemp fiber removal brush plate 2 can be designed as a modular, quickly detachable structure for easy maintenance, replacement, or cleaning.

[0038] In this embodiment, the hemp fiber quick-cleaning plate 1 is vertically mounted on the vibrating conveyor trough 3 and connected to a lifting mechanism that drives its lifting. The lifting mechanism can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder; the device also includes a control unit for controlling the movement of the lifting mechanism, a jog control button connected to the control unit, and a material detection sensor. A guide mechanism is provided between the lifting mechanism and the hemp fiber quick-cleaning plate 1, which can be a guide post / sleeve structure or a linear guide rail structure. The guide mechanism (such as a guide post / sleeve or a linear guide rail) between the lifting mechanism and the hemp fiber quick-cleaning plate 1 ensures that the hemp fiber quick-cleaning plate 1 lifts and lowers smoothly without tilting.

[0039] The brushes 21 of the hemp fiber removal brush plate 2 can be made of wear-resistant and elastic polymer materials such as nylon and polypropylene, or metal wires suitable for special environments (such as high temperatures). The height of the brushes 21 is preferably 10-50 mm, and the density is preferably 3-5 brushes / cm². In this embodiment, 4 brushes / cm² is preferred to balance the removal effect and cleaning difficulty. The working surface of the hemp fiber quick cleaning plate 1 is a smooth surface, made of stainless steel, polytetrafluoroethylene, or ceramic, to reduce adhesion to the hemp fibers and facilitate their removal. The thickness of the hemp fiber quick cleaning plate 1 is 2 mm to 10 mm. The installation angle of the hemp fiber quick cleaning plate 1 and the hemp fiber removal brush plate 2 relative to the bottom plane of the vibrating conveyor trough 3 is adjustable from 0 to 30 degrees to adapt to different conveying speeds and processing volumes.

[0040] In this embodiment, a cleaning auxiliary device is also included. This device consists of a translational brush 21 mechanism and / or a negative pressure suction device located on the side of the hemp fiber removal brush plate 2, used to clean the pushed-out hemp fibers. For example, a reciprocating translational brush 21 can be installed on the side of the device, or a negative pressure suction port can be installed above the device to automatically clean the pushed-out hemp fibers, further reducing manual intervention. A safety guard is installed outside the device, covering the hemp fiber quick-cleaning plate 1 and the hemp fiber removal brush plate 2 above and to the sides, preventing foreign objects from entering or accidental contact by personnel, ensuring operational safety.

[0041] The core of this utility model is that it includes a hemp fiber quick cleaning plate 1 and a hemp fiber removal brush plate 2, which are arranged in layers on the vibrating conveyor trough 3.

[0042] Specifically, the hemp fiber removal brush plate 2 is fixedly installed on the vibrating conveyor trough 3, and its surface is provided with dense brushes 21. The hemp fiber rapid cleaning plate 1 is located above the hemp fiber removal brush plate 2 and can move up and down relative to the hemp fiber removal brush plate 2. The key is that the height of the brushes 21 on the hemp fiber removal brush plate 2 is higher than the working plane of the hemp fiber rapid cleaning plate 1 in its initial (lowering) position. This height difference allows the fibrous impurities such as hemp fibers in the tobacco leaves to be effectively wrapped and captured by the raised brushes 21 when the tobacco leaves pass through the device during the vibrating conveyor process, while the main body of the tobacco leaves passes smoothly.

[0043] The lifting movement of the hemp fiber quick-cleaning plate 1 is driven by a lifting mechanism. This lifting mechanism can be a linear drive element such as an electric push rod, hydraulic cylinder, or pneumatic cylinder. The operation of the lifting mechanism is controlled by a control unit. The control unit can receive commands from the operator (such as jog control buttons) or signals from a material detection sensor. This sensor is used to detect whether there is material passing on the vibrating conveyor.

[0044] Its basic workflow is as follows: Removal phase: When the sensor detects material (tobacco leaves) passing by, the hemp fiber quick-cleaning plate 1 is in a descending position, close to or near the hemp fiber removal brush plate 2. The hemp fibers are then wrapped and removed by the brush 21.

[0045] Cleaning Operation Phase: When the sensor detects no material passing through (production gap), the control unit automatically (or the operator can activate a button) starts the lifting mechanism, driving the hemp fiber quick-cleaning plate 1 to rise. The rising hemp fiber quick-cleaning plate 1 "pushes" the hemp fibers wrapped around the brush 21 out of the top of the brush 21, freeing them from the binding of the brush 21. Subsequently, with the help of simple auxiliary devices (such as the horizontal brush 21, scraper) or a negative pressure dust collection device, the pushed-out hemp fibers can be collected and cleaned. After cleaning is completed, the hemp fiber quick-cleaning plate 1 descends to its original position, ready for the next rejection operation.

[0046] In this embodiment, the hemp fiber removal brush plate 2 is fixedly installed on the bottom plate of the vibrating conveyor trough 3 by bolts. Densely arranged brushes 21 are fixed to the upper surface of the hemp fiber removal brush plate 2. In this embodiment, the brushes 21 are made of wear-resistant nylon material, with a bristle height of 30mm and a density of approximately 4 bristles per square centimeter.

[0047] The hemp fiber quick-cleaning plate 1 is located above the hemp fiber removal brush plate 2. It is made of 304 stainless steel, 4mm thick, and has a polished surface with a low gloss level. The hemp fiber quick-cleaning plate 1 is raised and lowered via a lifting mechanism. In this embodiment, the lifting mechanism uses an electric push rod with a stroke of 60mm. The cylinder of the electric push rod is fixed to the bracket of the vibrating conveyor trough 3, and its end is connected to the bottom of the hemp fiber quick-cleaning plate 11.

[0048] In the initial state (i.e., the rejection operation state), the electric push rod retracts, causing the hemp fiber quick cleaning plate 1 to descend to a position close to the substrate surface of the hemp fiber rejection brush plate 2. At this time, the brushes 21 on the hemp fiber rejection brush plate 2 penetrate and extend approximately 25-28 mm above the working surface of the hemp fiber quick cleaning plate 1.

[0049] During operation, the tobacco leaves are conveyed forward on the vibrating conveyor trough 3. When the tobacco leaves pass over this device, the mixed hemp fibers are wrapped around the raised brushes 21, thereby removing the hemp fibers from the tobacco leaves.

[0050] When it is necessary to remove hemp fibers (e.g., during production breaks or for scheduled cleaning), the operator presses the jog control button. Upon receiving the signal, the control unit (such as a simple relay control circuit or PLC) drives the electric push rod (lifting mechanism) to lift the hemp fiber quick-cleaning plate 1 upwards. The rising hemp fiber quick-cleaning plate 1 pushes the hemp fibers wrapped around the brush 21 upwards, freeing them from the brush 21's restraint. The operator can then use a hand tool or the simple scraper provided with the equipment to remove the accumulated hemp fibers. After cleaning, pressing the button again lowers the hemp fiber quick-cleaning plate 1 back to its original position.

[0051] The implementation principle of this utility model is as follows: This utility model discloses a hemp fiber removal and rapid cleaning device for a vibrating conveyor, belonging to the field of tobacco machinery technology. The device includes a hemp fiber rapid cleaning plate 1 and a hemp fiber removal brush plate 2, which are arranged in layers on the vibrating conveyor trough 3. The brush 21 of the hemp fiber removal brush plate 2 is higher than that of the hemp fiber rapid cleaning plate 1. When tobacco leaves containing hemp fibers and other impurities pass through, the hemp fibers are effectively wrapped and removed by the brush 21. In the absence of material gaps, the hemp fiber rapid cleaning plate 1 is raised by a drive mechanism, pushing out the hemp fibers wrapped in the brush 21 for rapid cleaning. This utility model overcomes the problems of low efficiency, time-consuming and labor-intensive operation caused by the frequent replacement of hemp fiber clips in existing hemp fiber removal rollers, achieving efficient and continuous removal and rapid cleaning of hemp fibers, significantly improving production efficiency, reducing labor costs, and featuring a simple structure, convenient operation, and strong practicality.

[0052] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for removing and quickly cleaning hemp fibers for a vibrating conveyor, characterized in that: It includes a hemp fiber quick cleaning plate (1) and a hemp fiber removal brush plate (2). The hemp fiber quick cleaning plate (1) and the hemp fiber removal brush plate (2) are installed on the vibrating conveyor trough (3). The surface of the hemp fiber removal brush plate (2) is provided with a brush (21), and the height of the brush (21) is higher than the working surface of the hemp fiber quick cleaning plate (1), forming a double-layer structure of upper cleaning and lower removal.

2. The hemp fiber removal and rapid cleaning device for vibrating conveyors according to claim 1, characterized in that: The hemp fiber quick cleaning plate (1) is vertically mounted on the vibrating conveyor trough (3) and is connected to a lifting mechanism that drives its lifting.

3. The hemp fiber removal and rapid cleaning device for vibrating conveyors according to claim 2, characterized in that: The lifting mechanism is one of an electric push rod, a hydraulic cylinder, or a pneumatic cylinder; the device also includes a control unit for controlling the movement of the lifting mechanism, as well as a jog control button and a material detection sensor connected to the control unit.

4. The hemp fiber removal and rapid cleaning device for vibrating conveyors according to claim 1, characterized in that: The brush (21) of the hemp fiber removal brush plate (2) is made of nylon, polypropylene or metal wire; the height of the brush (21) is 10mm to 50mm and the density is 3-5 brushes per square centimeter.

5. The hemp fiber removal and rapid cleaning device for vibrating conveyors according to claim 1, characterized in that: The working surface of the hemp fiber quick cleaning plate (1) is a smooth surface, and its material is stainless steel, polytetrafluoroethylene or ceramic; the thickness of the hemp fiber quick cleaning plate (1) is 2mm to 10mm.

6. The hemp fiber removal and rapid cleaning device for vibrating conveyors according to claim 1, characterized in that: It also includes a cleaning auxiliary device, which is a translational brush mechanism or / and a negative pressure dust collection device located on the side of the hemp fiber removal brush plate (2) for cleaning the pushed-out hemp fibers.

7. The hemp fiber removal and rapid cleaning device for vibrating conveyors according to claim 1, characterized in that: The installation angle of the hemp fiber quick cleaning plate (1) and the hemp fiber removal brush plate (2) relative to the bottom plane of the vibrating conveyor trough (3) is adjustable from 0 to 30 degrees.

8. The hemp fiber removal and rapid cleaning device for vibrating conveyors according to claim 1, characterized in that: The device is equipped with a safety cover, which covers the top and sides of the hemp fiber quick cleaning plate (1) and the hemp fiber removal brush plate (2).

9. The hemp fiber removal and rapid cleaning device for vibrating conveyors according to claim 1, characterized in that: The hemp fiber removal brush (2) is a detachable structure and is fixed to the vibrating conveyor trough (3) by bolt or snap-fit ​​connection.

10. The hemp fiber removal and rapid cleaning device for vibrating conveyors according to claim 2, characterized in that: A guide mechanism is provided between the lifting mechanism and the hemp fiber quick cleaning plate (1), and the guide mechanism is a guide column and guide sleeve structure or a linear guide rail structure.

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