Ramie double-conduit linkage opening and closing negative pressure anti-breaking and suction device

Abstract

The utility model discloses a ramie double guide pipe linkage opening and closing negative pressure anti -breakage silk suction device, including support base, frame fixed base, fibre stretch winding mechanism and negative pressure treatment box. The frame fixed base is equipped on the support base, and the fibre stretch winding mechanism is installed at the top of the inside first assembly space, and the negative pressure treatment box is arranged in the middle, and the negative pressure exhaust fan is arranged on both sides. The negative pressure treatment box is divided into four chambers through the chamber partition and the residual silk filter plate, and the middle two chambers are communicated with the fibre stretch winding mechanism through the guide pipe, and the two side chambers are connected with the negative pressure exhaust fan. The guide pipe tail end is equipped with the one -way gravity valve as the first opening and closing structure, and the communication channel between the two guide pipes is equipped with the gate plate lifting box and the linkage gate plate and constitutes the second opening and closing structure. In addition, the residual silk discharge chamber and the structure convenient for replacing the residual silk filter plate are further equipped. The device is opened and closed through double guide pipe linkage, avoids the accumulation of residual silk broken silk, improves the silk suction efficiency, and the component layout is reasonable, and the operation does not interfere with each other.

Description

Technical Field

[0001] This utility model relates to the field of ramie processing technology, specifically to a ramie dual-conduit linkage opening and closing negative pressure anti-broken fiber suction device. Background Technology

[0002] In ramie processing, the fiber-removing device is an important auxiliary equipment. Its function is to promptly remove residual and broken fibers generated during processing, ensuring a clean processing environment and smooth subsequent processes. Existing ramie fiber-removing devices typically employ a double-guide tube structure, but this has significant drawbacks:

[0003] Only one of the two guide tubes is always in the conductive state, which easily leads to the accumulation of residual and broken wires in the non-working guide tube. As the amount of residual and broken wires accumulates, it will not only block the guide tube and affect the wire suction efficiency, but may also cause equipment failure due to blockage, increasing maintenance costs and downtime.

[0004] Meanwhile, the existing device has an unreasonable spatial layout between its components in its structural design, which makes it prone to problems such as vibration interference and airflow turbulence during operation, further reducing the stability and reliability of the wire suction device. Utility Model Content

[0005] To address the aforementioned technical problems, this application solves the problem that the dual guide tubes in the existing ramie fiber suction device cannot work together, resulting in the accumulation and blockage of residual and broken fibers in the guide tubes, which affects the fiber suction efficiency; at the same time, it solves the problem that the various components of the device interfere with each other during operation due to unreasonable spatial layout and imperfect structural design, which reduces the stability of the equipment.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: The device is based on a support base, with a frame fixing seat installed above it, forming a first assembly space inside the frame fixing seat. A fiber stretching and winding mechanism is installed at the top of the first assembly space, and a negative pressure treatment chamber is installed inside. Negative pressure exhaust fans are arranged on opposite sides of the negative pressure treatment chamber. The negative pressure exhaust fans are connected to the negative pressure treatment chamber through negative pressure connecting pipes, and can generate negative pressure suction during device operation to provide power for the fiber suction process.

[0007] The negative pressure treatment chamber houses a second assembly space, which is divided into four chambers arranged in a straight line by chamber partitions and residual filament filter plates located on both sides of the partitions. The left and right chambers are connected to the negative pressure exhaust fan, while the two middle chambers are connected to the fiber stretching and winding space inside the fiber stretching and winding mechanism via guide tubes. This layout allows residual and broken filaments to enter the negative pressure treatment chamber from the fiber stretching and winding mechanism through the guide tubes under negative pressure.

[0008] To achieve effective control over the opening and closing of the guide wire tubes, a first opening and closing structure is installed on the inner wall of the end of the guide wire tube within the second assembly space. A connecting channel is opened between the two guide wire tubes, and a second opening and closing structure is installed therein. The first opening and closing structure is a one-way gravity valve, which automatically opens under negative pressure suction to facilitate the passage of residual and broken wires; when there is no negative pressure, it automatically closes by its own gravity to prevent residual wires from flowing back. The second opening and closing structure is a gate lifting box, which houses a linkage gate. The top of the linkage gate is connected to a crossbar linkage mechanism via a lifting push rod. Drive cylinders are installed on the bottom surface of the gate lifting box and on both sides of the linkage gate. The extension and retraction ends of the drive cylinders are hinged to both ends of the crossbar linkage mechanism. Through the extension and retraction of the drive cylinders, the crossbar linkage mechanism and the lifting push rod move, thereby controlling the lifting and lowering of the linkage gate and opening or closing the connecting channel.

[0009] In addition, the negative pressure treatment chamber has a residual filament discharge chamber below the second assembly space. The two are connected by a discharge channel on the partition plate. The bottom of the discharge channel is equipped with an openable and closable discharge sealing cover for centralized discharge of residual filaments. A replacement channel is provided on the bottom surface of the residual filament filter plate on the partition plate. A filter plate support assembly is arranged at the bottom of the replacement channel. This assembly consists of a support block and a hinge seat. The support block is hinged to the bottom surface of the partition plate through the hinge seat, which facilitates the disassembly and replacement of the residual filament filter plate.

[0010] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0011] 1. High-efficiency wire suction and anti-clogging: Through the dual-guide linkage opening and closing design, the two guide tubes can work together or switch as needed, significantly improving wire suction efficiency compared to the traditional single guide tube working mode. When discharging from one side, the corresponding side negative pressure exhaust fan is turned off. Utilizing the cooperation of a one-way gravity valve and a linkage gate, the unused guide tube is automatically closed and the two guide tubes are connected, preventing residual or broken wires from accumulating and clogging the guide tubes, thus reducing equipment maintenance frequency.

[0012] 2. Stable Structure and No Interference: Each component employs a scientific spatial layout. For example, buffer space is reserved between the negative pressure exhaust fan and the frame mounting base, and shock-absorbing pads are installed to control vibration transmission below 0.1g. The chamber partitions are made of high-strength stainless steel to ensure independent operation of each chamber. Simultaneously, the opening and closing structure and residual wire handling system are ingeniously designed. The movements of components such as the one-way gravity valve and the linkage gate do not interfere with each other. The drive cylinder, through synchronous control, ensures smooth lifting and lowering of the linkage gate, with displacement error controlled within ±0.2mm. This effectively prevents interference between components due to movement or airflow, improving the operational stability of the device.

[0013] 3. Easy to maintain and operate: The residual filament discharge chamber and residual filament filter plate replacement structure are rationally designed. The discharge sealing cover can be quickly opened and closed, and the filter plate support assembly facilitates the replacement of residual filament filter plates, reducing the difficulty and time cost of equipment maintenance. In addition, the device also has an emergency mode. When the guide tube is blocked or the negative pressure is abnormal, it can automatically switch modes to reverse the flow and clear the blockage, further improving the reliability and practicality of the equipment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 Cross-section Figure 1 ;

[0017] Figure 3 for Figure 1 Cross-section Figure 2 .

[0018] In the diagram: 1 - Support base; 2 - Frame fixing seat; 3 - Fiber stretching and winding mechanism; 4 - Negative pressure treatment box; 5 - Residual filament collection trough; 6 - Guide tube; 7 - Divider fixing plate; 8 - Chamber partition; 9 - Negative pressure exhaust fan; 10 - Negative pressure connecting pipe; 11 - Gate lifting box; 12 - Residual filament filter plate; 121 - Handle; 13 - Filter plate support assembly; 14 - Residual filament discharge chamber; 15 - One-way gravity valve; 16 - Discharge sealing cover; 17 - Pick-up and drop-off window; 111 - Linkage gate; 112 - Lifting push rod; 113 - Crossbar linkage mechanism; 114 - Drive cylinder. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of 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. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for 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. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Example 1

[0026] like Figures 1 to 3As shown, a ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device includes a support base 1 for providing basic support, and a frame fixing seat 2 is vertically arranged on the upper surface of the support base 1; a first assembly space is constructed inside the frame fixing seat 2, and a fiber stretching and winding mechanism 3 is installed at the top of the first assembly space; a negative pressure treatment box 4 is arranged in the center inside the first assembly space, and negative pressure exhaust fans 9 are fixedly installed in the first assembly space areas on opposite sides of the negative pressure treatment box 4; wherein, a pick-up and put-out window 17 is opened on the front side of the frame fixing seat 2.

[0027] The negative pressure treatment chamber 4 forms a second assembly space, which is divided into four chambers arranged in a straight line by a chamber partition 8 and residual filament filter plates 12 symmetrically distributed on both sides of the chamber partition 8. The chambers on the left and right sides are connected to the corresponding negative pressure exhaust fans 9 through negative pressure connecting pipes 10, while the two chambers in the middle are connected to the stretching and winding space inside the fiber stretching and winding mechanism 3 through guide pipes 6. The front end of the residual filament filter plate 12 extends sequentially from the negative pressure treatment chamber 4 and the pick-up and put-down window 17, and the residual filament filter plate 12 is sealed with a sealing ring at the contact surface with the negative pressure treatment chamber 4 and the pick-up and put-down window 17.

[0028] Within the second assembly space, on the inner wall surface corresponding to the end of the guide wire tube 6, a first opening and closing structure for controlling the opening and closing of the guide wire tube 6 is provided; at the same time, a connecting channel is provided between the two guide wire tubes 6, and a second opening and closing structure for controlling the opening and closing is provided on the connecting channel.

[0029] The first opening and closing structure adopts a one-way gravity valve 15, which is hinged to the inner wall of the end of the guide wire tube 6. It can be automatically opened under negative pressure suction and automatically closed by gravity when there is no suction. The second opening and closing structure includes a gate lifting box 11 integrally formed on the top of the connecting channel. The gate lifting box 11 is provided with a linkage gate 111 inside. The top of the linkage gate 111 is fixedly connected to the crossbar linkage mechanism 113 through a lifting push rod 112. Drive cylinders 114 are respectively installed on the bottom surface of the gate lifting box 11 and on both sides of the linkage gate 111. The extension and retraction ends of the drive cylinders 114 are hinged to both ends of the crossbar linkage mechanism 113. An opening and closing transition channel for the linkage gate 111 to move is provided between the gate lifting box 11 and the connecting channel.

[0030] Below the second assembly space of the negative pressure treatment box 4, there is a residual filament discharge chamber 14. The second assembly space and the residual filament discharge chamber 14 are connected by a discharge channel opened on the partition fixing plate 7. The bottom of the discharge channel is provided with a discharge sealing cover 16 that can be opened or closed.

[0031] The partition fixing plate 7 has a replacement channel at the corresponding position on the bottom surface of the residual filament filter plate 12. The bottom of the replacement channel is provided with a filter plate support assembly 13 consisting of a support block and a hinge seat. The support block is hinged to the bottom surface of the partition fixing plate 7 through the hinge seat and is used to support or allow the residual filament filter plate 12 to pass through.

[0032] The fiber stretching and winding mechanism 3, the guide tube 6, the negative pressure treatment box 4, the negative pressure connecting pipe 10, and the negative pressure exhaust fan 9 are connected in sequence to form a complete path for absorbing residual and broken fibers.

[0033] When the negative pressure exhaust fan 9 is working, it creates a negative pressure environment in the negative pressure treatment box 4. In conjunction with the opening and closing of the one-way gravity valve 15 and the linkage gate 111, it enables the two guide tubes 6 to work together or discharge material through a single tube.

[0034] When discharging material from one side, the negative pressure exhaust fan 9 on the corresponding side is turned off, and the one-way gravity valve 15 automatically closes the wire guide tube 6 on that side. At the same time, the cylinder 114 is driven to move the linkage gate 111 upward, connecting the communication channel between the two wire guide tubes 6 so that the residual wire can be discharged through the other wire guide tube 6.

[0035] Device infrastructure

[0036] This device uses a support base 1 as the basic supporting component, with a frame fixing seat 2 vertically installed on the upper surface of the support base 1, forming a regular first assembly space inside. A fiber stretching and winding mechanism 3 is fixed to the top of the first assembly space via high-strength bolts. A negative pressure treatment chamber 4 is centrally located in the middle, with two negative pressure exhaust fans 9 symmetrically arranged in the assembly spaces on both sides of the negative pressure treatment chamber 4. The negative pressure exhaust fans 9 are connected to the chambers on both sides of the chamber via specially designed negative pressure connecting pipes 10. These connecting pipes 10 are made of flexible, negative pressure-resistant material, ensuring airtightness while effectively reducing fan vibration transmission, thus constructing a stable negative pressure power system.

[0037] like Figures 1 to 3 As shown, the internal structure of the negative pressure treatment chamber

[0038] A second assembly space is formed within the negative pressure treatment chamber 4. This space is divided into four linearly arranged chambers by high-precision welded chamber partitions 8 and side residual filament filter plates 12. The left and right side chambers serve as negative pressure maintenance areas and are connected to the negative pressure exhaust fan 9. The two middle chambers are connected to the stretching and winding space of the fiber stretching and winding mechanism 3 via appropriately sized guide tubes 6, forming a separate design for the residual filament suction channel and the negative pressure maintenance channel. The residual filament filter plates 12 adopt a multi-layer metal mesh stacked structure, which ensures both filtration effect and good air permeability, preventing blockage from affecting negative pressure transmission.

[0039] like Figures 1 to 3As shown, the innovative design of the opening and closing structure

[0040] One-way gravity valve control: A one-way gravity valve 15 is installed on the inner wall of the end of the guide tube 6 as the first opening and closing structure. This valve is made of lightweight alloy material and is installed by precision hinge. A silicone sealing gasket is provided at the contact point between the valve plate and the inner wall of the guide tube 6 to ensure a tight seal when closed. When the negative pressure exhaust fan 9 is running, the suction force generated is greater than the weight of the valve plate, and the valve automatically opens to allow residual wire to pass through; when the negative pressure disappears, the valve plate falls back quickly under its own weight, automatically closing the guide tube 6 to prevent residual wire from flowing back.

[0041] like Figures 1 to 3 As shown, the linkage gate control consists of a connecting channel between the two guide tubes 6, with an integrally formed gate lifting box 11 at the top serving as a secondary opening and closing structure. The linkage gate 111 inside the box is connected to the upper crossbar linkage mechanism 113 via a high-precision lifting push rod 112. The extension and retraction ends of the two drive cylinders 114 are connected to both ends of the crossbar 113 via universal hinges, ensuring flexibility and stability of movement. When the cylinders drive the crossbar linkage mechanism 113 to move up and down, they cause the linkage gate 111 to smoothly rise and fall through the opening and closing transition channel, achieving precise opening and closing of the connecting channel. The contact area between the gate 111 and the channel is sealed with a wear-resistant rubber strip to effectively prevent air leakage.

[0042] Fiber Residue Processing System

[0043] like Figures 1 to 3 As shown, the discharge chamber design includes a residual filament discharge chamber 14 located below the negative pressure treatment chamber 4, which is connected to the second assembly space via a discharge channel on the partition plate 7. The discharge channel is inclined, and a rotatable discharge sealing cover 16 is provided at the bottom. This sealing cover 16 is pneumatically controlled, and its rotation is driven by a cylinder to achieve rapid opening and closing, facilitating the centralized discharge of residual filaments.

[0044] Filter plate replacement mechanism: A rectangular replacement channel is opened on the bottom surface of the partition fixing plate 7 corresponding to the residual filament filter plate 12, and a filter plate support assembly 13 is set at the bottom. This assembly consists of a support block hinged to the fixing plate 7. The surface of the support block is provided with anti-slip texture, and the support block can be rotated to avoid the replacement channel. When replacing the residual filament filter plate 12, first open the discharge sealing cover 16, rotate the support block, and the residual filament filter plate 12 falls into the discharge chamber 14 under the action of gravity. It can then be easily removed and replaced through the inspection door on the side of the discharge chamber 14.

[0045] Detailed Explanation of Working Mode

[0046] like Figures 1 to 3As shown, the dual-tube coordinated fiber suction works as follows: When the linkage gate 111 blocks the connecting channel, the negative pressure exhaust fans 9 on both sides operate synchronously at the same power, forming a uniform and stable negative pressure environment in the second assembly space. At this time, the one-way gravity valve 15 opens under the action of negative pressure. The residual fibers and broken fibers generated during ramie processing are first sucked into the residual fiber collection tank 5 under the action of negative pressure suction, and then quickly enter the second assembly space of the box 4 through the guide tube 6. The residual fiber filter plate 12 intercepts and filters the entering residual fibers, ensuring that only air enters the negative pressure chambers on both sides through the chamber partition 8, and is finally discharged by the negative pressure exhaust fan 9, achieving efficient fiber suction.

[0047] like Figures 1 to 3 As shown, single-sided discharge operation: When single-sided discharge is required, the operator shuts off the corresponding side negative pressure exhaust fan 9 through the control system. The negative pressure on that side disappears, and the one-way gravity valve 15 automatically closes, keeping the guide tube 6 in a sealed state. At the same time, the other side negative pressure exhaust fan 9 continues to run to maintain the negative pressure balance within the device. At this time, the drive cylinder 114 actuates, driving the crossbar linkage mechanism 113 to move upward, and the lifting push rod 112 rises synchronously. The linkage gate 111 returns to the gate lifting box 11 through the transition channel, connecting the two guide tubes 6. Subsequently, the discharge sealing cover 16 is opened. Under the continuous negative pressure, the residual wires and broken wires accumulated on the discharge side in the second assembly space quickly enter the residual wire discharge chamber 14 through the discharge channel, avoiding blockage of a single tube, while ensuring that the wire suction operation on the other side is not affected.

[0048] like Figures 1 to 3 As shown, the emergency and maintenance modes are as follows: When the device detects a blockage or abnormal negative pressure in a certain guide tube 6, the system automatically switches to emergency mode. The corresponding negative pressure exhaust fan 9 is shut down, the connecting channel is opened, and the suction force of the fan on the other side is used to reverse-clear the blocked pipe. Furthermore, during routine maintenance, the residual filament filter plate 12 can be easily replaced by operating the filter plate support assembly 13; the residual filament discharge chamber 14 is equipped with an openable and closable inspection window, through which the residual filament in the discharge chamber can be periodically cleaned to ensure the continuous and stable operation of the device.

[0049] Further optimizations are as follows:

[0050] like Figures 1 to 3 As shown, the device's basic architecture

[0051] This device uses a support base 1 as a stable foundation, with a frame fixing seat 2 vertically installed on it, forming a regular first assembly space inside. The top of the first assembly space is secured to a fiber stretching and winding mechanism 3 via high-strength bolts. A negative pressure treatment chamber 4 is centrally located, with two negative pressure exhaust fans 9 symmetrically arranged in the assembly spaces on either side of the chamber 4. The negative pressure exhaust fans 9 are connected to the chamber chambers on both sides via a specially designed negative pressure connecting pipe 10. This connecting pipe 10 is made of a flexible, negative pressure-resistant material, ensuring airtightness while effectively reducing fan vibration transmission. All components maintain a reasonable spatial spacing and are fixed using shock-absorbing pads and brackets to avoid mutual interference due to vibration or displacement. For example, a 5-8cm buffer space is reserved between the negative pressure exhaust fan 9 and the frame fixing seat 2, and rubber shock-absorbing pads are installed to control the vibration transmission during fan operation to below 0.1g, ensuring that other components are not affected.

[0052] like Figures 1 to 3 As shown, the internal structure of the negative pressure treatment chamber

[0053] A second assembly space is formed within the negative pressure treatment chamber 4. This space is divided into four linearly arranged chambers by high-precision welded chamber partitions 8 and residual filament filter plates 12 on both sides. The chamber partitions 8 are made of 5mm thick stainless steel, possessing sufficient strength and rigidity to withstand the negative pressure within the chamber without deformation, ensuring independent operation of each chamber. The residual filament filter plates 12 employ a multi-layered metal mesh structure, with a 2mm spacing between each layer, ensuring both filtration effectiveness and good air permeability. Testing shows that under a suction force of -2000Pa generated by the negative pressure exhaust fan 9, the residual filament filter plates 12 can effectively intercept over 99% of residual filaments while ensuring smooth airflow and preventing blockages from affecting negative pressure transmission. The connection between the two middle chambers and the guide tube 6 uses a gradually expanding interface design, ensuring a smooth airflow transition and preventing eddies that could interfere with the negative pressure balance of other chambers.

[0054] like Figures 1 to 3 As shown, the innovative design of the opening and closing structure

[0055] One-way gravity valve control: The one-way gravity valve 15, located on the inner wall of the end of the guide tube 6, is made of lightweight alloy material. The valve plate weighs only 80g and is installed using a precision hinge, with the friction at the hinge controlled within 0.05 N·m. A silicone sealing gasket is provided at the contact point between the valve plate and the inner wall of the guide tube 6, with a sealing pressure of up to 30kPa. When the negative pressure exhaust fan 9 operates and generates suction of -1500Pa or higher, the torque generated by the suction on the valve plate is greater than the torque of the valve plate's gravity, and the valve automatically opens. When the negative pressure disappears, the valve plate quickly falls back under its own gravity, automatically closing the guide tube 6 to prevent residual wire from flowing back. During the opening and closing of the valve, its movement trajectory is parallel to the airflow direction inside the guide tube 6, and it will not cause lateral interference to the airflow.

[0056] Interlocking gate control: Inside the gate lifting box 11 between the two guide tubes 6, the interlocking gate 111 is connected to the upper crossbar linkage mechanism 113 via a high-precision lifting push rod 112. The drive cylinder 114 is a high-thrust model, with a single cylinder thrust of up to 500N, ensuring that the interlocking gate 111 can still rise and fall smoothly under a negative pressure of -2000Pa within the cavity. The contact area between the interlocking gate 111 and the channel is sealed with a wear-resistant rubber strip at a sealing pressure of 40kPa to prevent air leakage. The two drive cylinders 114 are driven by a synchronous control system, with displacement error controlled within ±0.2mm, ensuring that the interlocking gate 111 remains horizontal during rise and fall, preventing sealing failure or interference with surrounding components due to tilting.

[0057] Fiber Residue Processing System

[0058] Discharge chamber design: The residual wire discharge chamber 14 below the negative pressure treatment box 4 is connected to the second assembly space via a discharge channel on the partition plate 7. The discharge channel is inclined at 15°, and the discharge sealing cover 16 at the bottom is pneumatically controlled with a cylinder driving force of 300N, allowing it to open and close rapidly within 0.5 seconds. A sealing ring is provided at the interface between the discharge sealing cover 16 and the channel, with a sealing pressure of 25kPa, ensuring that negative pressure leakage will not affect the operation of other components during device operation. During the discharge process, the residual wire is smoothly discharged by gravity and negative pressure difference, without interfering with the negative pressure environment in the second assembly space or the operation of other chambers.

[0059] Filter plate replacement mechanism: The dividing fixing plate 7 corresponds to the bottom of the replacement channel on the bottom surface of the residual filament filter plate 12. The surface of the support block of the filter plate support assembly 13 is provided with anti-slip texture, providing a friction force of up to 80N, ensuring stable support of the residual filament filter plate 12 during normal operation. The hinge of the support block adopts a low-friction bearing, with a rotational resistance torque of only 0.1N・m, which is convenient for operation. When replacing the residual filament filter plate 12, the support block is rotated to avoid the replacement channel, and the residual filament filter plate 12 falls into the discharge chamber 14 under the action of gravity. The whole process will not collide or interfere with surrounding parts.

[0060] Detailed Explanation of Working Mode

[0061] like Figures 1 to 3 As shown, the dual-pipe synergistic suction system works as follows: When the linkage gate 111 blocks the connecting channel, the negative pressure exhaust fans 9 on both sides operate synchronously at the same power, forming a uniform and stable -2000Pa negative pressure environment in the second assembly space. At this time, the one-way gravity valve 15 opens under the action of negative pressure. The residual fibers and broken fibers generated during ramie processing are first sucked into the residual fiber collection tank 5 under the action of negative pressure suction, and then quickly enter the second assembly space of the box 4 through the guide tube 6. The residual fiber filter plate 12 intercepts and filters the entering residual fibers. The chamber partitions 8 and the reasonable airflow channel design between each chamber ensure uniform negative pressure distribution and prevent interference between components due to local pressure fluctuations.

[0062] Single-sided discharge operation: When single-sided discharge is required, the operator shuts off the corresponding side negative pressure exhaust fan 9 via the control system. The negative pressure on that side disappears, and the one-way gravity valve 15 automatically closes, keeping the guide tube 6 in a sealed state. Simultaneously, the other side negative pressure exhaust fan 9 continues to run, maintaining negative pressure balance within the device. At this time, the drive cylinder 114 actuates, driving the crossbar linkage mechanism 113 upwards. The lifting push rod 112 rises synchronously, and the linkage gate 111 returns to the gate lifting box 11 through the transition channel, connecting the two guide tubes 6. During this process, the movement of each component is carried out under preset tracks and control programs. Parameters such as the thrust of the drive cylinder 114 and the lifting displacement of the linkage gate 111 are precisely calculated and tested to ensure that they do not interfere with other working components. After the discharge sealing cover 16 is opened, under the continuous negative pressure, the residual wires and broken wires accumulated on the discharge side in the second assembly space are quickly entered into the residual wire discharge chamber 14 through the discharge channel, avoiding blockage of the single pipe, while ensuring that the wire suction work on the other side is not affected.

[0063] Emergency and Maintenance Mode: When the device detects a blockage or abnormal negative pressure in a guide tube 6, the system automatically switches to emergency mode. The corresponding negative pressure exhaust fan 9 is shut down, the connecting channel is opened, and the suction of the other fan is used to reverse-clear the blocked pipe. In emergency mode, the operating status of each component is within safe threshold ranges. For example, the working pressure of the drive cylinder 114 does not exceed 80% of the rated pressure, and the speed of the negative pressure exhaust fan 9 is adjusted to 60%-80% of the normal range, ensuring that overload or abnormal operation will not damage other components when handling faults. Furthermore, during routine maintenance, the residual filament filter plate 12 can be easily replaced by operating the filter plate support assembly 13; the residual filament discharge chamber 14 is equipped with an openable and closable inspection window, through which the residual filament in the discharge chamber can be periodically cleaned, ensuring continuous and stable operation of the device.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device, characterized in that, It includes a support base (1) for providing basic support, and a frame fixing seat (2) is vertically arranged on the upper surface of the support base (1); a first assembly space is constructed inside the frame fixing seat (2), a fiber stretching and winding mechanism (3) is installed at the top of the first assembly space, a negative pressure treatment box (4) is arranged in the center inside the first assembly space, and negative pressure exhaust fans (9) are fixedly installed in the first assembly space areas on opposite sides of the negative pressure treatment box (4); wherein, a pick-up and put-out window (17) is opened on the front side of the frame fixing seat (2).

2. The ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device according to claim 1, characterized in that, The negative pressure treatment chamber (4) forms a second assembly space inside, which is divided into four chambers arranged in a straight line by a chamber partition (8) and residual filament filter plates (12) symmetrically distributed on both sides of the chamber partition (8); wherein, The chambers on the left and right sides are connected to the negative pressure exhaust fan (9) on the corresponding side through negative pressure connecting pipe (10), and the two chambers in the middle are connected to the stretching and winding space inside the fiber stretching and winding mechanism (3) through guide pipe (6); the front end face of the residual filament filter plate (12) extends from the negative pressure treatment box (4) and the pick-up and put-down window (17) in sequence, and the residual filament filter plate (12) is provided with sealing rings at the contact surfaces of the negative pressure treatment box (4) and the pick-up and put-down window (17) respectively.

3. The ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device according to claim 2, characterized in that, Within the second assembly space, on the inner wall surface corresponding to the end of the guide tube (6), a first opening and closing structure for controlling the opening and closing of the guide tube (6) is provided; at the same time, a connecting channel is provided between the two guide tubes (6), and a second opening and closing structure for controlling the opening and closing is provided on the connecting channel.

4. The ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device according to claim 3, characterized in that, The first opening and closing structure adopts a one-way gravity valve (15), which is hinged to the inner wall of the end of the guide wire tube (6). It can be automatically opened under negative pressure suction and automatically closed by gravity when there is no suction.

5. The ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device according to claim 3, characterized in that, The second opening and closing structure includes a gate lifting box (11) integrally formed on the top of the connecting channel. The gate lifting box (11) is provided with a linkage gate (111). The top of the linkage gate (111) is fixedly connected to the crossbar linkage mechanism (113) through a lifting push rod (112). Drive cylinders (114) are installed on the bottom surface of the gate lifting box (11) and on both sides of the linkage gate (111). The extension and retraction ends of the drive cylinders (114) are hinged to both ends of the crossbar linkage mechanism (113). An opening and closing transition channel for the linkage gate (111) to move is provided between the gate lifting box (11) and the connecting channel.

6. The ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device according to claim 2, characterized in that, Below the second assembly space of the negative pressure treatment box (4), there is a residual wire discharge chamber (14). The second assembly space and the residual wire discharge chamber (14) are connected by a discharge channel opened on the partition fixing plate (7). The bottom of the discharge channel is provided with a discharge sealing cover (16) that can be opened or closed.

7. The ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device according to claim 6, characterized in that, The partition fixing plate (7) has a replacement channel at the corresponding position on the bottom surface of the residual filament filter plate (12). The bottom of the replacement channel is provided with a filter plate support assembly (13) consisting of a support block and a hinge seat. The support block is hinged to the bottom surface of the partition fixing plate (7) through the hinge seat to support or allow the residual filament filter plate (12) to pass through.

8. The ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device according to any one of claims 1-7, characterized in that, The fiber stretching and winding mechanism (3), the guide tube (6), the negative pressure treatment box (4), the negative pressure connecting pipe (10), and the negative pressure exhaust fan (9) are connected in sequence to form a complete path for absorbing residual and broken fibers.

9. The ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device according to claim 8, characterized in that, When the negative pressure exhaust fan (9) is working, it creates a negative pressure environment in the negative pressure treatment box (4). With the opening and closing of the one-way gravity valve (15) and the linkage gate (111), it enables the two guide wire tubes (6) to work together or the single tube to discharge material.

10. The ramie double-duct linkage opening and closing negative pressure anti-broken fiber suction device according to claim 9, characterized in that, When discharging material on one side, the negative pressure exhaust fan (9) on the corresponding side is turned off. The one-way gravity valve (15) automatically closes the wire guide tube (6) on that side. At the same time, the cylinder (114) is driven to move the linkage gate (111) upward, connecting the communication channel between the two wire guide tubes (6) so that the residual wire can be discharged through the other wire guide tube (6).

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