A fine spinning waste suction and discharge device

Abstract

The present invention discloses a fine spinning waste suction and discharge device, comprising a mounting base, below which is disposed mounting feet for fixed connection to the device; a protective cover shell connected to the mounting base; a ducted suction system, a variable cylinder air duct system, and a plurality of connecting pipes disposed within the protective cover shell; the ducted suction system and the variable cylinder air duct system being fixed to the upper end surface of the mounting base. The present invention utilizes a ducted fan to provide a powerful suction and blowing force, first sucking together impurities and then discharging them in a reverse direction. Efficient impurity suction and discharge is achieved through conversion of pipes and channels. The entire device has lower power consumption, lower electricity consumption, and better cleaning effects.

Description

Technical Field

[0001] The invention relates to a fine spinning waste suction and discharge device, belonging to the technical field of textile equipment. Background Art

[0002] At present, the collection and treatment of textile factory waste (hair, flying fibers, thread ends and other impurities) is completed by suction-type single-barrel fans (similar to a single-pass vacuum cleaner). The principle is that the single-axis fan drives the blades to rotate at high speed to generate negative pressure, sucking in flying fibers and other impurities and then transferring them to a designated location for centralized recycling. In some occasions, in order to achieve strong suction, the power of the single-axis fan is generally large. If the transmission distance or path is long, two-stage or multi-stage transfer fans may even be required. The specific diagram is as follows: Figure 1 As shown, the end of the first-stage fan 06 in the entire device is equipped with rotating blades. When powered on, the motor rotates, driving the fan blades at the end and generating suction to the right. Impurities 08 are sucked into the device under the action of the negative pressure suction at the end of the suction duct 01, and are sucked into the filter device 03 on the left side of the outlet tail pipe 02 in the direction of the arrow. Finally, the impurities that are not adsorbed are blown into the recovery net bag 09; the second-stage transfer fan 05 is started when the transmission line is too long or the suction is insufficient, increasing the suction of the device and the transmission power of impurities in the channel.

[0003] The above equipment still has the following defects:

[0004] 1) The fan power is relatively large, the power consumption is high, and when processing less impurities, the power waste is serious;

[0005] 2) The negative pressure at the air inlet is sufficient, but the suction force may be insufficient in areas with long transmission distances. Two or more stages of fans must be added to maintain suction balance, resulting in high configuration costs.

[0006] 3) The general delivery pipeline and the entire mechanism are relatively large in size, occupying a lot of space, which is not practical for compact installation occasions and the product has a limited scope of application;

[0007] 4) Since many pipelines are non-smooth inner cavities with various rotating motors and fan blades installed inside, if there is insufficient filtration, some impurities that are easily inhaled may contain long waste yarns that can easily cause static electricity to hang on the wall, causing the blades to get stuck and stop rotating, overheat and burn, etc.; and cleaning the interior of the equipment requires disassembly of multiple parts, which makes maintenance very inconvenient.

[0008] Therefore, it is necessary to design an energy-saving spinning waste suction and discharge device so that it can be fixedly installed at the location where impurities are to be processed through pipeline laying, keeping the designated maintenance location clean and tidy, and the adsorbed impurities can be discharged to the designated location again through the pipeline for centralized collection of waste, which is more environmentally friendly. Summary of the Invention

[0009] In response to the problems existing in the above-mentioned prior art, the present invention provides a fine spinning waste suction and discharge device, which provides powerful suction and blowing force through a ducted fan, first sucking the impurities together, and then discharging them in reverse and concentrated manner, and realizes efficient impurity suction and discharge through the transformation of pipes and channels; the entire device has lower power, lower electricity consumption, and better cleaning effect.

[0010] To achieve the above-mentioned object, the present invention adopts the following technical solution: a fine spinning waste suction and discharge device, comprising a mounting base, below which is provided a mounting foot for fixed connection with the device; a protective cover shell connected to the mounting base; a ducted suction system, a variable cylinder type air duct system, and a plurality of connecting pipes disposed within the protective cover shell; the ducted suction system and the variable cylinder type air duct system being fixed to the upper end surface of the mounting base;

[0011] The connecting pipeline includes an intake duct, a guide duct one, a guide duct two, a guide duct three, a guide duct four and an exhaust duct; the ducted suction system includes a ducted fan and an externally arranged fan cover, and the fan cover is mounted on the mounting base through a fixing part; the intake duct passes through the variable cylinder air duct system and is connected to the guide duct one; the guide duct one is connected to the guide duct two through a hose; the guide duct two is fixedly connected to one side of the ducted fan; the other side of the ducted fan is fixedly connected to the guide duct three; the guide duct three is connected to the guide duct four through a hose; the guide duct four is connected to one side of the variable cylinder air duct system, and the other side of the variable cylinder air duct system is connected to the exhaust duct; the exhaust duct is connected to the impurity collection bag through a hose.

[0012] Furthermore, the variable cylinder air duct system includes a double-hole cylinder body; the double-hole cylinder body is provided with an intake passage and an exhaust passage; the intake passage is composed of an intake duct and a first guide pipe to form an intake air duct located on the right side of the double-hole cylinder body; the exhaust passage is composed of a fourth guide pipe and an exhaust duct to form an exhaust air duct located on the left side of the double-hole cylinder body;

[0013] Furthermore, a telescopic cylinder is provided at the upper end surface of the double-hole cylinder body; the cylinder rod end of the telescopic cylinder is fixedly connected to the connecting plate by a snap nut; the lower end of the connecting plate is fixedly connected to the variable channel module by a fixing bolt; the variable channel module is inserted into the rectangular cavity of the double-hole cylinder body and forms a sealed sliding fit.

[0014] Furthermore, a gas flow monitoring sensor is provided on the upper end surface of the double-hole cylinder body at corresponding positions of the intake air duct and the exhaust air duct, and the gas flow monitoring sensor is used to regularly detect the pressure and flow values ​​in the intake and exhaust air ducts.

[0015] Furthermore, the variable channel module is provided with three channel holes, and an insert-type slot is provided on one side of the upper end of the hole, in which an insert-type magnet adsorption grid and an insert-type resin adsorption grid are installed; one insert-type magnet adsorption grid is provided, which is inserted into the insert-type slot of a channel hole in the middle of the variable channel module; two insert-type resin adsorption grids are provided, which are located in the insert-type slots of the channel holes on the left and right sides of the variable channel module; the three channel holes provided on the variable channel module and the two through holes of the double-hole cylinder body form a variable cylinder type air path that alternates with each other.

[0016] Furthermore, a position sensor is provided at the bottom of the mounting base plate; the position sensor is arranged below the corresponding position of the variable channel module.

[0017] The beneficial effects of the present invention are as follows: the present invention adopts a modular design, is small in size, and is easy to install; the 24V low-voltage power connection is safer and has a wider range of applicable occasions; compared with the original high-power heavy-duty motor, this ducted duct motor is more energy-saving, environmentally friendly, and has lower noise. Since the ducted fan is docked with a separate small pipeline, the proportion of the rotating cavity is low and the suction loss is small, so the independent suction is strong and the impurity removal effect is obvious. A three-cylinder push-pull conversion channel structure is designed in the device, and advanced plug-in electrostatic adsorption grid pieces are used for adsorption, which has better impurity removal effect and internal ducted fan blade protection effect, longer maintenance cycle, and more convenient and quick replacement of the air duct filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a general textile waste suction and discharge device in the background art;

[0019] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 3 Schematic diagram of the internal structure of the present invention;

[0021] Figure 4 It is a schematic exploded view of the structure of the present invention;

[0022] Figure 5 This is a front view of a simulation of impurity suction in a variable air pressure channel in an embodiment of the present invention;

[0023] Figure 6 A top view of a simulated impurity suction process in a variable air pressure channel of an embodiment of the present invention;

[0024] Figure 7 A simulation diagram of impurity suction through a variable air pressure channel in a device according to an embodiment of the present invention (illustrating suction channel matching);

[0025] Figure 8This is a schematic diagram of the initial flow direction of impurities inhaled before channel switching according to an embodiment of the present invention;

[0026] Figure 9 This is a simulated front view of impurity discharge from the variable air pressure channel in the device according to an embodiment of the present invention;

[0027] Figure 10 A top view of a simulation of impurity discharge from a variable air pressure channel in a device according to an embodiment of the present invention;

[0028] Figure 11 A simulation diagram of impurity discharge from a variable air pressure channel in a device according to an embodiment of the present invention (illustrating the matching of the discharge channel);

[0029] Figure 12 This is a schematic diagram of the impurity discharge and intake flow after channel switching in an embodiment of the present invention.

[0030] In the figure: 1. Protective cover, 2. Intake duct, 3. Intake duct one, 4. Intake duct four, 5. Discharge duct, 6. Intake duct two, 7. Intake duct three, 8. Ducted fan, 9. Mounting base, 10. Telescopic cylinder, 11. Snap nut, 12. Fixing bolt, 13. Connecting piece, 14. Variable channel module, 15. Insert-type magnet adsorption grid, 16. Position sensor, 17. Ducted suction system, 18. Impurity collection bag, 19. Variable cylinder duct system, 20. Insert-type resin adsorption grid, 21. Fan cover, 22. Double-hole cylinder body, 23. Gas flow monitoring sensor, 25. Impurities. Implementation Method

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention pertains. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] like Figure 2 、 Figure 3 and Figure 4 As shown, a fine spinning waste suction and discharge device includes a mounting base 9, below which is provided a mounting foot for fixed connection to the device; a protective cover 1 is connected to the mounting base 9; a ducted suction system 17, a variable cylinder air duct system 19, and a plurality of connecting pipes are provided within the protective cover 1; the ducted suction system 17 and the variable cylinder air duct system 19 are fixed to the upper end surface of the mounting base 9;

[0034] The connecting pipeline includes an intake duct 2, a lead duct 3, a lead duct 2 6, a lead duct 3 7, a lead duct 4 4 and an exhaust duct 5; the ducted suction system 17 includes a ducted fan 8 and an externally arranged fan cover 21, and the fan cover 21 is installed on the mounting base 9 through a fixing part; the intake duct 2 passes through the variable cylinder air duct system 19 and is connected to the lead duct 3; the lead duct 3 is connected to the lead duct 2 6 through a hose; the lead duct 2 6 is fixedly connected to one side of the ducted fan 8; the other side of the ducted fan 8 is fixedly connected to the lead duct 3 7; the lead duct 3 7 is connected to the lead duct 4 4 through a hose; the lead duct 4 4 is connected to one side of the variable cylinder air duct system 19, and the other side of the variable cylinder air duct system 19 is connected to the exhaust duct 5; the exhaust duct 5 is connected to the impurity collection bag 18 through a hose;

[0035] In this embodiment, the variable cylinder air duct system 19 preferably includes a double-hole cylinder body 22; the double-hole cylinder body 22 is provided with an intake passage and an exhaust passage; the intake passage is composed of an intake duct 2 and a guide pipe 3 to form an intake air passage located on the right side of the double-hole cylinder body 22; the exhaust passage is composed of a guide pipe 4 4 ​​and an exhaust duct 5 to form an exhaust air passage located on the left side of the double-hole cylinder body 22;

[0036] Preferably, in this embodiment, a telescopic cylinder 10 is provided at the upper end surface of the double-hole cylinder body 22; the cylinder rod end of the telescopic cylinder 10 is fixedly connected to the connecting plate 13 by a snap nut 11; the lower end of the connecting plate 13 is fixedly connected to the variable channel module 14 by a fixing bolt 12; the variable channel module 14 is inserted into the rectangular cavity of the double-hole cylinder body 22 and forms a sealed sliding fit.

[0037] In this embodiment, preferably, a gas flow monitoring sensor 23 is provided on the upper end surface of the double-hole cylinder 22 at corresponding positions of the suction air duct and the exhaust air duct, and the gas flow monitoring sensor 23 is used to regularly detect the pressure and flow values ​​in the suction and exhaust air ducts.

[0038] Preferably, the variable channel module 14 is provided with three channel holes, and an insert-type card slot is provided on one side of the upper end of the hole, in which a plug-in magnet adsorption grid 15 and a plug-in resin adsorption grid 20 are installed; one plug-in magnet adsorption grid 15 is provided, which is inserted into the insert-type card slot of a channel hole in the middle of the variable channel module 14; two plug-in resin adsorption grids 20 are provided, which are located in the insert-type card slots of the channel holes on the left and right sides of the variable channel module 14;

[0039] The variable channel module 14 is provided with three channel holes that alternately cooperate with the two through holes of the double-hole cylinder body 22 to form a variable cylinder type gas path.

[0040] A position sensor 16 is provided at the bottom of the mounting base plate 9 ; the position sensor 16 is arranged below a corresponding position of the variable channel module 14 .

[0041] In this embodiment, the four corners of the mounting base 9 have four mounting feet, which can be fixed to the equipment with bolts. The protective cover shell 1 can cover the components other than the pipeline inside the shell to prevent interference from the external environment and invasion of dust. The protective cover shell 1 can be buckled on the mounting base 9, and the double-hole cylinder 22 is fixed to the right side of the mounting base 9. The gas flow monitoring sensor 23 is fixed to the corresponding position of the double-hole channel of the double-hole cylinder 22, wherein the suction conduit 2 and the guide pipe 3 form the right side suction airway through the double-hole cylinder 22, wherein the exhaust conduit 5 and the guide pipe form the left side suction airway through the double-hole cylinder 22. In the exhaust duct, a gas flow monitoring sensor 23 regularly monitors the pressure and flow within the intake and exhaust ducts. Furthermore, the airflow from inlet pipe 1 3 is connected to the inlet pipe via a flexible hose. Inlet pipe 2 6 is connected to the ducted fan 8. A fan housing 21 is located outside the ducted fan 8, securing the entire fan system to the mounting base 9. At the rear end of the fan housing 21 is inlet pipe 3 7. Airflow from the fan and the housing 21 is directed through inlet pipe 3 7 to inlet pipe 4 4, and then through the left hole of the dual-hole cylinder 22 to the exhaust conduit 5, completing the complete airflow inlet and outlet process.

[0042] The telescopic cylinder 10 is fixed to the upper end surface of the double-hole cylinder body 22, and the cylinder rod at the end of the telescopic cylinder is provided with a snap nut 11. The snap nut 11 can fix the cylinder rod end of the telescopic cylinder 10 to the connecting piece 13, and the connecting piece 13 can be fixed together with the variable channel module 14 by a fixing bolt 12. In this way, when the cylinder rod of the telescopic cylinder 10 is extended or retracted, it can drive the telescopic movement together, and at the same time drive the holes on the variable channel module 14 to form an interlaced hole pairing with the holes on the double-hole cylinder body 22; the variable channel module 14 is inserted into the left and right rectangular cavities of the double-hole cylinder body 22 and forms a sealed sliding fit. There are 3 channel holes on the variable channel module 14, and the upper end of the hole is provided with an insert-type card slot. The insert-type magnet adsorption grid 15 and the insert-type resin adsorption grid 20 can be inserted or pulled out of the card slot. The insert-type magnet adsorption grid 15 is inserted into the middle hole slot, and the insert-type resin adsorption grid 20 An attached grid 20 is inserted into each of the left and right slots; the main function of the insert-type magnet adsorption grid 15 and the insert-type resin adsorption grid 20 is to adsorb and collect impurities 25 in the airflow; the three holes on the variable channel module 14 and the two holes of the double-hole cylinder body 22 form an alternating variable cylinder type air path, that is, the two consecutive adjacent air holes on the variable channel module 14 always correspond to the retaining holes and holes on the double-hole cylinder body 22 when the air path is flowing, but the positions of the two holes are periodically or intermittently staggered; the position sensor 16 is installed at the bottom of the mounting base 9, and a square hole close to the detection range of the position sensor 16 is opened at this position of the mounting base 9. Through this square hole, the position sensor 16 can detect the position change of the insert-type magnet adsorption grid 15. According to the change in the position of the insert-type magnet adsorption grid 15, the position sensor 16 can start, stop and control the speed of the ducted fan 8.

[0043] Reference Figure 5-Figure 8, the waste (impurity) suction principle of this embodiment is described as follows: when the entire device starts to be powered on, the ducted suction system 17 starts to work, the telescopic cylinder 10 pushes out, and drives the variable channel module 14 to slide to the right, so that the suction channel EG end cooperates with B to form an EBG suction-type negative pressure channel, and the discharge channel DF end cooperates with A end to form a DAF discharge-type positive pressure channel; the C end is not connected to any channel; at this time, the air flow monitoring device 23 can detect the normal air flow, and the suction duct 2 sucks in the impurities and reaches B through the E port. There is a plug-in magnet adsorption grid 15 at B, which has an electrostatic adsorption function and can adsorb most impurities to the outside of the plug-in magnet adsorption grid 15, forming more than 80% of the initial After the second filtration, a small amount of remaining impurities follow the airflow through the second inlet pipe 6 and enter the duct fan, reaching the third inlet pipe 7, and then being sucked into the fourth inlet pipe 4 connected to the third inlet pipe 7, and reaching the point A through the F port. The point A is provided with a plug-in resin adsorption grid 20, which also has an electrostatic adsorption function. Under the positive pressure air flow, the existing impurities are gradually adsorbed to the inner side of the grid at point A, thus forming a second fine filtration. In particular, the filter grid at point A is different from the filter grid at point B, but the type at points A and C is the same. The outer ring retainer of the filter grid at point A is made of resin material, while the outer ring retainer of the filter grid at point B is made of magnetic material. The purpose of setting the magnetic material at point B is to facilitate the position sensor 16 to detect and identify position changes.

[0044] After continuous waste absorption, the gas flow monitoring sensor 23 can detect the flow changes in the pipeline. As the waste continues to accumulate outside the filter grid at B, the overall air circulation force of the EBG section is gradually reduced and the air flow is decreasing. These can be detected in time by the gas flow monitoring sensor 23 and fed back to the external PLC system.

[0045] Reference Figures 9-12The waste (impurity) discharge principle of this embodiment is as follows: after the entire device has absorbed impurities for a period of time, the system program is set to detect that the gas flow monitoring sensor 23 has only 90% of the initial air volume; the system starts to alarm and issues a command through the PLC to control the telescopic cylinder 10 to start contracting. When the telescopic cylinder 10 retracts, it drives the variable channel module 14 to slide to the left. Since a plug-in magnet adsorption grid 15 is inserted in the middle position of the variable channel module 14, the position sensor 16 configured on the mounting base 9 detects the leftward displacement change of the plug-in magnet adsorption grid 15. The sensor can output an analog signal to the PLC system, and the PLC system can respond accordingly. The parameter setting is to reduce the suction force of the ducted suction system 17 (i.e., the speed of the fan), and even temporarily stop the operation of the ducted suction system 17; when the cylinder retracts to zero, the EG end of the suction channel cooperates with C to form a new ECG suction negative pressure channel, and the DF end of the discharge channel cooperates with B to form a DBF discharge positive pressure channel; the A end extends out of the double-hole cylinder body 22 and is not connected to any channel; because the insert-type resin adsorption grid 20 at C is brand new (not contaminated with impurities) at this time, the gas flow monitoring sensor 23 can detect the normal air flow again, and the suction duct 2 sucks in the impurities to continue to work uninterruptedly, and the new impurities reach C through the E port, and C is provided with an insert The resin adsorption grid 20 also has an electrostatic adsorption function, which can adsorb most impurities to the outside of the insert-type resin adsorption grid 20, forming a primary filtration of more than 90%. A small amount of remaining impurities follow the airflow through the guide pipe 2 6 into the duct fan, reach the guide pipe 3 7, and then be sucked into the guide pipe 4 4 ​​connected to the guide pipe 3 7, and reach the inside of the replaced position B through the F port. The insert-type magnetic adsorption grid 15 is provided at B. The grid has already adsorbed a lot of impurities at the previous suction port position, and the impurities are all on the outside. At this time, due to the effect of the air flow direction of the channel, the impurities adsorbed on the outside of ⑮ will be blown out and discharged to the designated impurity discharge port through the discharge duct 5. In a mass recovery bag or other collection container; similarly, when the impurities at point C have fully absorbed the insert-type resin adsorption grid 20 at point C, the system issues an alarm, and then it is necessary to repeat the previous process, and extend the telescopic cylinder 10 again, so that the insert-type magnet adsorption grid 15 at point B, the outside of which has been cleaned by the positive pressure airflow, is switched to the EG channel to continue to complete the adsorption; next, after the outside of the insert-type magnet adsorption grid 15 at point B is fully absorbed again, it is switched to the DF channel again to complete the discharge, until the gas flow monitoring sensors installed in the suction (EG channel) and discharge channels (DF channel) simultaneously issue alarms, indicating that the adsorption grid needs to be cleaned or replaced.

[0046] Disassembly and assembly of the adsorption grid: Remove the snap nut 11 at the front end of the telescopic cylinder 10, pull out the connection 13 and the variable channel module 14 from the double-hole cylinder body 22, and find a plug-in magnet adsorption grid 15 (middle hole) and two plug-in resin adsorption grids 20 (side holes) in the three slots of the variable channel module 14. After taking them out, clean them professionally or replace them with new plug-in grids.

[0047] The present invention utilizes this fine spinning waste suction and exhaust device to effectively solve the embarrassing problem that the location that needs to be cleaned cannot be installed due to space problems because the installation volume is too large. The small and compact size of the device can be flexibly installed in various locations, and the constraints of customers in choosing similar functional products due to space constraints are completely eliminated; the power part of the device adopts a 24V DC ducted fan to access, which is more universal and convenient to obtain electricity, and has lower power consumption, which is more energy-saving and environmentally friendly than ordinary blowing and suction systems; the new spinning waste suction and exhaust device contains a new impurity adsorption net insert, which has better adsorption properties, is easy to replace, can be used repeatedly after cleaning, and is more green and environmentally friendly; at the same time, the suction and exhaust synchronization time of the device is better, and the suction and exhaust time and frequency can be set for the adsorption and discharge of the adsorption grid. The terminal can be associated with PLC, touch screen, etc. for data, and the control is more intelligent.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fine spinning waste suction and discharge device, characterized in that: The invention comprises a mounting base plate (9), wherein a mounting foot for fixedly connecting to the equipment is provided below the mounting base plate (9); a protective cover shell (1) is connected to the mounting base plate (9); a ducted suction system (17), a variable cylinder type air duct system (19) and a plurality of connecting pipes are provided in the protective cover shell (1); the ducted suction system (17) and the variable cylinder type air duct system (19) are fixed to the upper end surface of the mounting base plate (9); The connecting pipeline includes an intake duct (2), a guide pipe 1 (3), a guide pipe 2 (6), a guide pipe 3 (7), a guide pipe 4 (4) and an exhaust duct (5); the ducted suction system (17) includes a ducted fan (8) and an externally arranged fan cover (21), the fan cover (21) being mounted on the mounting base (9) via a fixing member; the intake duct (2) passes through the variable cylinder air duct system (19) and is connected to the guide pipe 1 (3); the guide pipe 1 (3) The second guide pipe (6) is connected to the second guide pipe (6) through a hose; the second guide pipe (6) is fixedly connected to one side of the duct fan (8); the other side of the duct fan (8) is fixedly connected to the third guide pipe (7); the third guide pipe (7) is connected to the fourth guide pipe (4) through a hose; the fourth guide pipe (4) is connected to one side of the variable cylinder type air duct system (19), and the other side of the variable cylinder type air duct system (19) is connected to the discharge conduit (5); the discharge conduit (5) is connected to the impurity collection bag (18) through a hose; The variable cylinder air duct system (19) includes a double-hole cylinder body (22); an air intake passage and an air exhaust passage are provided on the double-hole cylinder body (22); the air intake passage is composed of an intake duct (2) and a guide pipe (3), and is located at the right side of the double-hole cylinder body (22); the air exhaust passage is composed of a guide pipe (4) and an exhaust duct (5), and is located at the left side of the double-hole cylinder body (22); A telescopic cylinder (10) is provided at the upper end surface of the double-hole cylinder body (22); the cylinder rod end of the telescopic cylinder (10) is fixedly connected to the connecting piece (13) via a snap nut (11); the lower end of the connecting piece (13) is fixedly connected to the variable channel module (14) via a fixing bolt (12); the variable channel module (14) is inserted into the rectangular cavity of the double-hole cylinder body (22) and forms a sealed sliding fit; A gas flow monitoring sensor (23) is provided on the upper end surface of the double-hole cylinder (22) at corresponding positions of the intake air passage and the exhaust air passage, and the gas flow monitoring sensor (23) is used to regularly detect the pressure and flow values ​​in the intake and exhaust air passages; The variable channel module (14) is provided with three channel holes, and an insert-type card slot is provided on one side of the upper end of the hole, and an insert-type magnet adsorption grid (15) and an insert-type resin adsorption grid (20) are installed in the insert-type card slot; the insert-type magnet adsorption grid (15) is provided with one, which is inserted into the insert-type card slot located in a channel hole in the middle of the variable channel module (14); the insert-type resin adsorption grid (20) is provided with two, which are located in the insert-type card slots of the channel holes on the left and right sides of the variable channel module (14); The variable channel module (14) is provided with three channel holes that form a variable cylinder-type air path that alternately cooperates with the two through holes of the double-hole cylinder body (22).

2. A fine spinning waste suction and discharge device according to claim 1, characterized in that: A position sensor (16) is provided at the bottom of the mounting base plate (9); the position sensor (16) is arranged below the position of the variable channel module (14).

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