Automatic cleaning device for a flexible air separation system of a cut tobacco line

Abstract

The utility model relates to tobacco processing equipment technical field especially relates to a kind of automatic cleaning device of flexible air separation system of making silk line, including turnover subassembly, reciprocating subassembly and spray subassembly;The turnover subassembly includes swing cylinder and swing arm, the swing cylinder is installed in the both ends of the axial direction of sending silk roll, and the swing arm is installed on swing cylinder;The reciprocating subassembly includes rodless cylinder, and the both ends of rodless cylinder are respectively installed on the swing arm of both ends, and the slider sliding along the axial direction of sending silk roll is installed on rodless cylinder;The spray subassembly includes nozzle, and the nozzle is installed on the slider, and nozzle is connected with gas source, and it is sprayed to sending silk roll.The utility model solves the problems of low efficiency, large space occupation, influence wind field and easy damage in the existing sending silk roll cleaning mode.

Description

Technical Field

[0001] This utility model relates to the field of tobacco processing equipment technology, and in particular to an automatic cleaning device for the feeding roller of a flexible air separation system in a tobacco processing line. Background Technology

[0002] Flexible air separation systems, a key piece of equipment in tobacco processing workshops, are primarily used for grading and screening tobacco shreds to improve their quality and uniformity. Their principle is based on the difference in suspension velocity between qualified materials and impurities to separate the impurities. The feeding roller, a crucial component of the flexible air separation system, loosens clumps of tobacco shreds to enhance the air separation effect. However, during operation, due to the dense arrangement of the loosening needles on the feeding roller, stems and clumps of tobacco shreds easily accumulate on its surface. Regular cleaning of the feeding roller is essential; otherwise, the loosening effect will be severely compromised, resulting in the rejection of a large amount of qualified tobacco shreds, significantly reducing the loosening efficiency and causing substantial waste of raw materials.

[0003] To ensure proper tobacco winding and quality, it is necessary to regularly clean the surface of the feeding rollers to remove any adhering material (generally once a day due to production continuity constraints; if the material adhesion is severe, it must be cleaned immediately at the end of each batch). Currently, the feeding rollers in the tobacco processing workshop are still cleaned manually. Due to the relatively confined working space, cleaning the feeding rollers requires two people working together, resulting in low efficiency and significant safety hazards.

[0004] Conventional cleaning devices clean materials by inserting a metal scraper plate (a rigid plate with cleaning teeth) into the gap between the needles of the wire feeding roller. This device consists of a fixed support and a single-station scraper plate, which is arranged parallel to the surface of the wire feeding roller. During cleaning, material is scraped off through mechanical contact. Because the scraper plate occupies the space beside the wire feeding roller for extended periods, its structure interferes with the airflow distribution (i.e., the "air field") within the air classifier, leading to a decrease in air classification efficiency. Furthermore, the scraper plate is prone to collisions with the high-speed rotating needles of the wire feeding roller, causing the needles to bend or break.

[0005] Existing technologies have the following problems. First, manual cleaning of the wire feed rollers is inefficient because the working space is limited, requiring two people to work together, and the cleaning process is cumbersome and time-consuming. Second, the conventional cleaning device uses a guide plate structure that occupies a large space and can only provide one cleaning station, resulting in low cleaning efficiency. Furthermore, conventional cleaning devices can easily affect the airflow of the air classification system. Moreover, the guide plate and the loose needles on the roller surface are prone to collision during relative movement, which may damage the cleaning device and affect the normal operation and service life of the equipment. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this utility model embodiment is to provide an automatic cleaning device for the feed rollers of a flexible air classification system in a tobacco processing line. This device aims to solve the problems of low efficiency, large space occupation, impact on the airflow, and susceptibility to damage associated with existing feed roller cleaning methods, providing a novel automatic cleaning device for feed rollers. This device simplifies the cleaning process, improves operational efficiency, and requires only a single operator to automatically complete the cleaning work. Simultaneously, it avoids interference with the airflow of the air classification system and reduces collisions with the loosening needles, ensuring the safe and stable operation of the equipment. This effectively improves the production efficiency and tobacco quality control level of the tobacco processing workshop.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] An automatic cleaning device for the feed roller of a flexible air separation system in a yarn feeding line includes: a flipping assembly, a reciprocating assembly, and a blowing assembly; the flipping assembly includes a swing cylinder and a swing arm, the swing cylinder is installed at both ends of the feed roller along the axial direction, and the swing arm is installed on the swing cylinder; the reciprocating assembly includes a rodless cylinder, the two ends of the rodless cylinder are respectively installed on the swing arms at both ends, and a slider that slides along the axial direction of the feed roller is installed on the rodless cylinder; the blowing assembly includes a nozzle, the nozzle is installed on the slider, and the nozzle is connected to an external air source to blow air onto the feed roller.

[0009] Optionally, the wire feeding roller is mounted on the frame, and mounting seats are fixedly provided at both ends of the frame, with the swing cylinder mounted on the mounting seats.

[0010] Optionally, one side of the mounting base has a protrusion, which is attached to the outer wall of the frame and connected by welding. A through hole is also provided in the middle of the mounting base, and the swing cylinder is installed in the through hole.

[0011] Optionally, the swing cylinder has a rotating shaft that passes through a through hole in the mounting base. One end of the swing arm is mounted on the rotating shaft and can swing under the drive of the rotating shaft to move to the working position.

[0012] Optionally, the outer wall of the rotating shaft has a limiting rod, and two limiting blocks are provided on the end face of the swing cylinder. The two limiting blocks are installed at different angles on the circumference to limit the rotation range of the limiting rod.

[0013] Optionally, the swing arm has an L-shaped structure, with a round hole at one end and a C-shaped plate at the other end. The rotating shaft of the swing cylinder is inserted into the round hole of the swing arm and fixed therein. The end of the rodless cylinder is detachably mounted on the C-shaped plate of the swing arm.

[0014] Optionally, the rodless cylinder is a magnetically coupled rodless cylinder, which has a piston inside. The piston is connected to an external slider. When the magnetically coupled rodless cylinder is connected to the air source, the piston drives the slider to move.

[0015] Optionally, the jet assembly further includes a three-way connector, one of which is connected to an air source, and the other two connectors are each fitted with a nozzle, forming a dual-head nozzle.

[0016] Optionally, the blowing assembly further includes a pressure cap, which is mounted on the slider by screws and fixes the tee connector between the pressure cap and the slider.

[0017] Optionally, the automatic cleaning device also includes a pneumatic control component, which includes a pneumatic reciprocating speed control valve, a manual reversing valve, a throttle valve, and a shut-off valve. The pneumatic reciprocating speed control valve is used to control the automatic reversing and speed regulation of the rodless cylinder, the manual reversing valve is used to control the position switching of the swing cylinder, the throttle valve is used to control the compressed air flow rate in the air circuit, and the shut-off valve is used to control the on / off of the air circuit.

[0018] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages:

[0019] This utility model discloses an automatic cleaning device for the wire feed roller, comprising a tilting assembly, a reciprocating assembly, and a blowing assembly. The tilting assembly achieves position switching via a swing cylinder and a swing arm, enabling the device to switch between a working position and a recovery position. The rodless cylinder and its slider in the reciprocating assembly drive the nozzles to move axially along the wire feed roller, while the nozzles in the blowing assembly are used to blow gas to clean the surface of the wire feed roller. By designing a purely pneumatically controlled automatic cleaning device, the device achieves spatial avoidance, non-contact operation, and high-efficiency blowing during the wire feed roller cleaning process. It solves the problems of low efficiency and significant safety hazards associated with manual cleaning in existing technologies, as well as the interference with the airflow and easy damage to equipment caused by fixed cleaning devices. This automates the cleaning process, improves cleaning efficiency, and reduces manual intervention.

[0020] Additional advantages of this invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. Furthermore, the spacing or dimensions between components are exaggerated to show their positions; the schematic diagrams are for illustrative purposes only.

[0022] Figure 1 This is an assembly diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the mounting base of this utility model.

[0024] Figure 3 This is a schematic diagram of the flipping component of this utility model.

[0025] Figure 4 This is a schematic diagram of the swing cylinder of this utility model.

[0026] Figure 5 This is a schematic diagram of the swing arm of this utility model.

[0027] Figure 6 This is a schematic diagram of the jetting assembly of this utility model.

[0028] Figure 7 This is a schematic diagram of the gas path control of this utility model.

[0029] In the diagram: 1. Swing cylinder; 2. Mounting base; 3. Swing arm; 4. Wire feeding roller; 5. Rodless cylinder; 6. Air inlet regulating plate; 7. Nozzle; 8. Pressure cap; 9. Frame; 10. T-joint; 11. Slider; Detailed Implementation

[0030] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] like Figure 1 As shown, this embodiment proposes an automatic cleaning device for the feed roller 4 of a flexible air separation system in a yarn-making line, including: a flipping component, a reciprocating component, and a blowing component; as shown... Figure 3 , Figure 4 , Figure 5 As shown, the flipping assembly includes a swing cylinder 1 and a swing arm 3. The swing cylinder 1 is installed at both ends of the wire feeding roller 4 along its axial direction, and the swing arm 3 is installed on the swing cylinder 1; Figure 6 As shown, the reciprocating assembly includes a rodless cylinder 5, with its two ends respectively mounted on swing arms 3 at both ends. A slider 11 that slides along the axial direction of the wire feeding roller 4 is mounted on the rodless cylinder 5. The blowing assembly includes a nozzle 7, which is mounted on the slider 11. The nozzle 7 is connected to an external air source to blow air onto the wire feeding roller 4.

[0032] The flipping assembly achieves spatial switching between the working position and the avoidance position through the cooperation of the swing cylinder 1 and the swing arm 3. Its symmetrical arrangement at both ends of the wire feeding roller 4 ensures force balance. The reciprocating assembly uses a rodless cylinder 5 to drive the slider 11 to slide along the axial direction of the wire feeding roller 4, enabling the blowing assembly to cover the entire roller surface area. The nozzles 7 of the blowing assembly are connected to an external air source to generate high-speed airflow, replacing traditional mechanical contact cleaning. This structure solves the problem of interference with the air field by fixed devices through flipping and avoidance. At the same time, the linear motion of the rodless cylinder 5 and the rotational motion of the swing cylinder 1 work together to achieve three-dimensional spatial trajectory coverage. Only a single person is needed to operate the automatic cleaning device to achieve the expected results of safe operation and efficient cleaning.

[0033] The wire feeding roller 4 is mounted on the frame 9, and mounting bases 2 are fixedly provided at both ends of the frame 9 (e.g., ...). Figure 2 As shown, the swing cylinder 1 is mounted on the mounting base 2. The mounting bases 2 at both ends of the frame 9 are used to fix the swing cylinder 1. This structure ensures the stability of the entire cleaning device, allowing it to be reliably installed in the flexible air separation system. Through the cooperation of the frame 9 and the mounting base 2, the stable operation of the swing cylinder 1 is ensured, thereby realizing the precise swing of the swing arm 3 and providing a stable mechanical foundation for subsequent cleaning work. In this embodiment, the mounting base 2 is made of stainless steel. Of course, it is understood that other materials, such as medium carbon steel, can also be used.

[0034] like Figure 2 As shown, one side of the mounting base 2 has a protruding strip, which is attached to the outer wall of the frame 9 and connected by welding. The mounting base 2 also has a through hole in the middle and threaded holes are machined around the through hole for fixing the swing cylinder 1.

[0035] The raised rib is attached to the outer wall of the frame 9 and fixed by welding, enhancing the structural strength and stability of the mounting base 2. The through hole provides accurate positioning and support for the installation of the swing cylinder 1. This design not only ensures the installation accuracy of the swing cylinder 1 but also improves the durability of the entire device, enabling it to withstand long-term industrial use.

[0036] The swing cylinder 1 in this embodiment is an existing structure that can be purchased externally. The swing cylinder 1 has a rotating shaft that passes through the through hole of the mounting base 2. One end of the swing arm 3 is mounted on the rotating shaft and can swing under the drive of the rotating shaft to move to the working position.

[0037] When the swing cylinder 1 drives the rotating shaft to rotate, the end of the swing arm 3 generates an arc trajectory, realizing the rapid switching of the nozzle 7 assembly from the avoidance position to the working position, ensuring that the cleaning device works in the correct position, and improving the safety and reliability of the equipment.

[0038] like Figure 4As shown, the outer wall of the rotating shaft has a limiting rod, and two limiting blocks are provided on the end face of the swing cylinder 1. The two limiting blocks are installed at different angles of the circumference to limit the rotation range of the limiting rod.

[0039] The combination of the limiting rod and the limiting block forms a mechanical angle constraint mechanism, which can accurately set two key stopping points—the avoidance position and the working position—based on the internal spatial characteristics of the air separator. In this embodiment, the swing angle range of the swing cylinder 1 is 0° to 270°. This limiting structure can improve the repeatability of the swing arm 3 and prevent collisions between the nozzle 7 and the roller surface caused by overtravel of the angle.

[0040] like Figure 3 , Figure 5 As shown, the swing arm 3 has an L-shaped structure. One end of the L-shaped swing arm 3 has a round hole, and the other end has a C-shaped plate. The rotating shaft of the swing cylinder 1 is inserted into the round hole of the swing arm 3 and fixed therein. The end of the rodless cylinder 5 is detachably mounted on the C-shaped plate of the swing arm 3.

[0041] The round hole at one end is used for mounting on the rotating shaft of the swing cylinder 1, while the C-shaped plate at the other end provides a detachable mounting point for the rodless cylinder 5. The L-shaped structure allows the swing arm 3 to effectively utilize space while maintaining strength, and the detachable design of the C-shaped plate facilitates the installation and maintenance of the rodless cylinder 5. This structural design simplifies the assembly process, reduces maintenance difficulty, and improves the maintainability of the equipment.

[0042] The rodless cylinder 5 is a magnetically coupled rodless cylinder 5, which is purchased externally. The magnetically coupled rodless cylinder 5 is equipped with a piston, which is connected to an external slider 11. When the air source is turned on, the piston drives the slider 11 to move.

[0043] The piston inside the magnetically coupled rodless cylinder 5 is magnetically coupled to the external slider 11, allowing the slider 11 to slide axially along the wire feeding roller 4 under the drive of the rodless cylinder 5. This magnetic coupling method not only improves the cylinder's sealing performance and reduces the risk of leakage, but also ensures the smoothness and precision of the slider 11's movement. By connecting the air source, the piston drives the slider 11 to move, realizing the automatic reciprocating motion of the nozzle 7, thus improving cleaning efficiency and quality.

[0044] like Figure 6 As shown, the jetting assembly also includes a three-way connector 10, one of which is connected to an air source, and the other two connectors are each fitted with a nozzle 7, forming a double-headed nozzle 7.

[0045] The copper tee connector 10 splits the air source into two paths, each connected to one of the two nozzles 7, thereby expanding the coverage area of ​​the blowing to impact and clean the material adhering to the surface of the wire feed roller 4. This design enables a wider cleaning area without adding an additional air source, improving cleaning efficiency. The dual-head nozzle 7 makes the cleaning process more efficient, reduces cleaning time, and improves production efficiency. The nozzle 7, made of copper tubing, allows for better shaping and has good corrosion resistance.

[0046] The spray assembly also includes a pressure cap 8, which is mounted on the slider 11 with screws, and the tee connector 10 is fixed between the pressure cap 8 and the slider 11. By mounting the pressure cap 8 to the slider 11 with screws, the tee connector 10 is securely clamped between the pressure cap 8 and the slider 11. This fixing method not only facilitates the installation and removal of the tee connector 10 and the nozzle 7, but also ensures the stability and accuracy of the nozzle 7 during the cleaning process. The detachable design facilitates maintenance and replacement of parts, extending the service life of the equipment.

[0047] The automatic cleaning device also includes pneumatic control components, such as Figure 7 As shown, the pneumatic control assembly includes a pneumatic reciprocating speed control valve, a manual directional valve, a throttle valve, and a shut-off valve. The pneumatic reciprocating speed control valve controls the automatic directional switching and speed regulation of the rodless cylinder 5. The manual directional valve controls the position switching of the swing cylinder 1, thereby realizing the switching between the zero position and the working position of the entire device. The throttle valve controls the compressed air flow rate in the air circuit, and the shut-off valve controls the on / off of the air circuit. The coordinated operation of these components ensures the automated operation of the cleaning device, improves operational flexibility and safety, realizes automatic cleaning function in a purely pneumatic control state, reduces the need for a complex electrical control system, and lowers costs and maintenance difficulty.

[0048] Working principle:

[0049] Mounting base 2 is installed (welded) to both sides of the flexible air classifier frame 9 according to the design position. The swing cylinders 1 at both ends are installed on the mounting base 2 with screws. The swing arm 3 is then installed on the rotating shaft of the swing cylinder 1 and fixed with locking screws. The rodless cylinder 5 is installed on the swing arm 3 with screws. The blowing assembly is then installed on the slider 11 of the rodless cylinder 5. Each pneumatic control assembly is installed on the outside of the frame 9. At this point, the installation of each component of the device is complete. Connect the air pipeline and adjust the swing angle of the swing cylinder 1 and the angle of the nozzle 7 appropriately according to the use position and the recycling position to achieve the best blowing effect.

[0050] When the air separation system is working, in order to avoid the device from interfering with the air field inside the air separation box, the device is in the recycling position, that is, the device is hidden under the air inlet regulating plate 6. When the air separation system is stopped, the device is switched to the use position by manually reversing the valve. After repeated spraying, the automatic cleaning process is completed. After cleaning, the device is returned to the recycling position.

[0051] Due to the high dust concentration inside the air classifier box, this device achieves automatic cleaning in a purely pneumatic state without relying on electrical control. The cleaning device does not affect the process performance of the flexible air classifier. Through optimized design, the cleaning device and the air classifier system are effectively combined. Only one person is needed to automatically complete the tedious automatic cleaning of the wire feeding roller 4, which effectively improves work efficiency and avoids safety hazards caused by working in confined spaces.

[0052] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. An automatic cleaning device for the feed rollers of a flexible air separation system in a filament-making line, characterized in that, include: Flip-over components, reciprocating components, and jet-blowing components; The flipping assembly includes a swing cylinder and a swing arm. The swing cylinder is installed at both ends of the wire feeding roller along the axial direction, and the swing arm is installed on the swing cylinder. The reciprocating assembly includes a rodless cylinder, with its two ends respectively mounted on swing arms at both ends, and a slider that slides along the axial direction of the wire feeding roller is mounted on the rodless cylinder. The blowing assembly includes a nozzle, which is mounted on the slider and connected to an external air source to blow air onto the wire feeding roller.

2. The automatic cleaning device for the feed rollers of the flexible air separation system in the yarn-making line as described in claim 1, characterized in that, The wire feeding roller is mounted on the frame, and mounting seats are fixedly provided at both ends of the frame. The swing cylinder is mounted on the mounting seats.

3. The automatic cleaning device for the feed rollers of the flexible air separation system in the yarn-making line as described in claim 2, characterized in that, The mounting base has a protruding strip on one side, which is attached to the outer wall of the frame and connected by welding. A through hole is also provided in the middle of the mounting base, and the swing cylinder is installed in the through hole.

4. The automatic cleaning device for the feed rollers of the flexible air separation system in the yarn-making line as described in claim 3, characterized in that, The swing cylinder has a rotating shaft that passes through a through hole in the mounting base. One end of the swing arm is mounted on the rotating shaft and can swing under the drive of the rotating shaft to move to the working position.

5. The automatic cleaning device for the feed rollers of the flexible air separation system in the yarn-making line as described in claim 4, characterized in that, The outer wall of the rotating shaft has a limiting rod, and two limiting blocks are provided on the end face of the swing cylinder. The two limiting blocks are installed at different angles on the circumference to limit the rotation range of the limiting rod.

6. The automatic cleaning device for the feed rollers of the flexible air separation system in the yarn-making line as described in claim 4, characterized in that, The swing arm has an L-shaped structure, with a round hole at one end and a C-shaped plate at the other end. The rotating shaft of the swing cylinder is inserted into the round hole of the swing arm and fixed therein. The end of the rodless cylinder is detachably mounted on the C-shaped plate of the swing arm.

7. The automatic cleaning device for the feed rollers of the flexible air separation system for a yarn-making line as described in claim 1, characterized in that, The rodless cylinder is a magnetically coupled rodless cylinder. The magnetically coupled rodless cylinder has a piston inside, which is connected to an external slider. When the air source is turned on, the piston drives the slider to move.

8. The automatic cleaning device for the feed rollers of the flexible air separation system for a yarn-making line as described in claim 1, characterized in that, The jetting assembly also includes a three-way connector, one of which is connected to an air source, and the other two connectors are each fitted with a nozzle, forming a dual-head nozzle.

9. The automatic cleaning device for the feed rollers of the flexible air separation system in a yarn-making line as described in claim 8, characterized in that, The blowing assembly also includes a pressure cap, which is mounted on the slider by screws and fixes the tee connector between the pressure cap and the slider.

10. The automatic cleaning device for the feed rollers of the flexible air separation system in a yarn-making line as described in claim 1, characterized in that, The automatic cleaning device also includes a pneumatic control component, which includes a pneumatic reciprocating speed control valve, a manual reversing valve, a throttle valve, and a shut-off valve. The pneumatic reciprocating speed control valve is used to control the automatic reversing and speed regulation of the rodless cylinder. The manual reversing valve is used to control the position switching of the swing cylinder. The throttle valve is used to control the compressed air flow rate in the air circuit. The shut-off valve is used to control the on / off of the air circuit.

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