A polishing device for intelligent processing of wool-type fiber spinnerets

Through the intelligent control of the liquid pressure and rebound state monitoring module, the problem of abrasive blockage of the spinneret is solved, the efficiency and uniformity of spinneret polishing are achieved, and the polishing effect of the wool fiber spinneret is improved.

CN120155858BActive Publication Date: 2025-07-22CHANGZHOU FANGXING PRECISION MACHINERY +1
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202510637630.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2025-07-22
Estimated Expiration
2045-05-19

AI Technical Summary

Technical Problem

In the prior art, the position of abrasive in the fluid is uncontrollable, resulting in abrasive congestion on the hole surfaces at some positions on the spinneret, affecting the polishing operation effect of the wool fiber spinneret.

Method used

The liquid pressure monitoring module and rebound state monitoring module are used to monitor the impact pressure and abrasive rebound force of the spinneret in real time. Through the comprehensive analysis of the central processing unit, the mobile mechanism is controlled to adjust the spinneret position to achieve intelligent polishing and avoid abrasive clogging.

Benefits of technology

It improves the effectiveness and efficiency of spinneret polishing operations, ensures uniform distribution of fluids and abrasives, avoids abrasive clogging, and improves the polishing quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120155858B_ABST
    Figure CN120155858B_ABST
Patent Text Reader

Abstract

The present invention belongs to the technical field of intelligent polishing of spinnerets, in particular to a polishing device for intelligent processing of wool-type fiber spinnerets. The following solution is now proposed, including a polishing box and a box cover. A hydraulic telescopic rod is connected between the box cover and the polishing box. The spinneret is placed inside the polishing box. The top end of the box cover is communicated with a liquid injection port, and the bottom of the polishing box is communicated with a liquid discharge port. Clamping plates are arranged around the spinneret, and a moving mechanism is connected to the bottom end of the clamping plate. There are also four groups of liquid pressure monitoring modules located below the spinneret and four groups of rebound state monitoring modules located above the periphery of the spinneret. In the present invention, the monitoring data of the rebound state monitoring module and the liquid pressure monitoring module are uploaded to the central processor. After comprehensive analysis, the position of the spinneret is adjusted by controlling the moving mechanism, and intelligent adjustment is carried out according to the real-time polishing state, so as to improve the effectiveness of the polishing operation and improve the operation efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent polishing of spinnerets, and particularly to a polishing device for intelligent processing of wool-type fiber spinnerets. Background Art

[0002] A wool-type fiber spinneret is a key die component for producing wool-type fibers, usually a circular or rectangular metal thin plate, and the wool-type fiber spinneret needs to be polished during the production process.

[0003] Referring to the Chinese patent with the publication number CN114193237A, a microporous fluid polishing process for spinnerets is disclosed, including a spinneret and a spinneret installation workbench. The spinneret installation workbench is provided with a fluid discharge hole and a spinneret installation hole, and the spinneret is connected to the spinneret installation hole on the spinneret installation workbench through bolts; the front end of the fluid discharge hole communicates with the melt flow channel of the spinneret, and the rear end is connected to a fluid supply device.

[0004] In the prior art, fine polishing operations are carried out by flushing the spinneret with fluid and abrasives in the fluid. However, due to the uncontrollable position of the abrasives in the fluid, abrasive congestion may occur on the surface of the holes in some positions on the spinneret during the polishing operation, which will affect the polishing effect of the wool-type limit spinneret. Summary of the Invention

[0005] Based on the technical problems in the background art, the present invention proposes a polishing device for intelligent processing of wool-type fiber spinnerets.

[0006] A polishing device for intelligent processing of wool-type fiber spinnerets proposed by the present invention includes a polishing box and a box cover. A hydraulic telescopic rod is connected between the box cover and the polishing box. The spinneret is placed in the polishing box. The top of the box cover is communicated with a liquid injection port, and the bottom of the polishing box is communicated with a liquid discharge port. Clamping plates are arranged around the spinneret, and a moving mechanism is connected to the bottom of the clamping plates; there are also four groups of liquid pressure monitoring modules located below the spinneret, and the four groups of liquid pressure monitoring modules correspond to the positions of the moving mechanism. The liquid pressure monitoring modules are used to monitor the impact pressure of the fluid below the spinneret in real time; there are four groups of rebound state monitoring modules located above the periphery of the spinneret, and the four groups of rebound state monitoring modules are arranged at intervals with the liquid pressure monitoring modules. The rebound state monitoring modules are used to monitor the impact force of the fluid and abrasives rebounding upward after hitting the spinneret in real time; the monitoring data of the rebound state monitoring modules and the liquid pressure monitoring modules are uploaded to a central processor, and after comprehensive analysis, the position of the spinneret is adjusted by controlling the moving mechanism.

[0007] Preferably, the moving mechanism is provided with a guiding frame fixed to the inner wall of the polishing box. A driving screw is rotatably connected between the two ends of the guiding frame. One end of the driving screw is drivingly connected to a first motor. A moving block is threadedly connected to the outer wall of the driving screw. The moving block is slidably limited between the guiding frames. The clamping plate is installed above the moving block.

[0008] Preferably, the clamping plate is arranged in an L-shaped structure. Vertically downward extending positioning screws are fixed on both sides of the bottom of the clamping plate where the driving screw is located. Through holes are provided at the positions corresponding to the positioning screws on the top of the moving block. The positioning screws are in sliding contact with the through holes. Nuts are threadedly connected to both ends of the through holes on the positioning screws.

[0009] Preferably, the liquid pressure monitoring module is provided with a first pressure sensor.

[0010] Preferably, a dispersion net bag is provided at the position on the inner wall of the top of the box cover corresponding to the liquid injection port. An annular frame is installed at the position on the inner wall of the top of the box cover corresponding to the dispersion net bag. A horizontal ring is fixed to the top of the outer wall of the dispersion net bag. The outer wall of the horizontal ring is slidably connected to the inner wall of the annular frame. A vertical ring is fixed to the top end of the dispersion net bag. Tooth grooves are provided in an annular array on the inner wall of the vertical ring. A second motor is installed on the top of the box cover. A gear meshing with the tooth grooves is fixed to the output shaft of the second motor.

[0011] Preferably, a dispersion mechanism is provided at the position between two adjacent moving mechanisms in the box cover. The dispersion mechanism is provided with a vertical shaft. Blade plates are arranged on both sides of the vertical shaft. A sleeve is fixed to the side of the blade plate close to the vertical shaft. The inner wall of the sleeve is rotatably connected to the vertical shaft through a torsion spring. The rebound state monitoring module is set as a torsion monitor located in the sleeve. The torsion monitor is used to monitor the torsion of the corresponding torsion spring in real time.

[0012] Preferably, fixing frames are installed between the top end and the bottom end of the vertical shaft and the inner wall of the box cover. A limiting block is installed at the position of the vertical shaft facing the spinneret.

[0013] Preferably, the control logic of the central processing unit is as follows: Step 1: The liquid pressure monitoring module collects the impact pressure of the fluid below the spinneret in real time, records data at a fixed frequency, filters the collected data to remove noise interference, uses the moving average filtering method, and calculates the average value of the past data points as the effective pressure value at the current moment; the rebound state monitoring module monitors the torsion of the torsion spring in real time, also collects data at a fixed frequency, normalizes the torsion data, compares the normalized data with the torsion value in the normal state, and calculates the torsion change amount; Step 2: Comprehensive calculation, calculate the comprehensive blockage index C; Step 3: Set a comprehensive blockage threshold C th When C > C th It is considered that there is a blockage at the corresponding position of the spinneret.

[0014] Preferably, an extension plate is installed at the bottom of the moving block. A first through groove is formed at the top of the extension plate. A blade is arranged on one side of the moving block close to the spinneret plate. Shafts are fixed at both ends of the blade. The outer wall of the shaft is rotationally connected with an auxiliary frame through a torsion spring. The bottom end of the auxiliary frame is fixed to the top of the extension plate. A second through groove corresponding to the driving screw is formed on the side of the blade. The blade is inclined upward away from the moving block.

[0015] Preferably, a contact piece is arranged on one side of the moving block close to the blade. A through hole is formed at the position of the contact piece and the driving screw. A second pressure sensor is arranged between the contact piece and the moving block.

[0016] The beneficial effects of the present invention are as follows:

[0017] In the present invention, the monitoring data of the rebound state monitoring module and the liquid pressure monitoring module are uploaded to the central processor. After comprehensive analysis, it is judged whether the corresponding position of the spinneret plate is blocked. The position of the spinneret plate is adjusted by controlling the moving mechanism and the clamping plate, so that the spinneret plate moves from the blocked monitoring position towards the center direction of the spinneret plate. Under the action of inertia, the blocked abrasive moves in the opposite direction of the moving direction of the spinneret plate, that is, the blocked abrasive moves towards the periphery of the spinneret plate to achieve blockage removal, and continuous monitoring is carried out to analyze and feedback the adjusted data. During the polishing operation of the spinneret plate by the fluid and the abrasive, intelligent adjustment is carried out according to the real-time polishing state to improve the effectiveness of the polishing operation and improve the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the control module of a polishing device for intelligent processing of wool-type fiber spinneret plates proposed by the present invention;

[0019] Figure 2 It is a schematic overall structural diagram of a polishing device for intelligent processing of wool-type fiber spinneret plates proposed by the present invention;

[0020] Figure 3 It is a schematic internal structure diagram of the polishing box of a polishing device for intelligent processing of wool-type fiber spinneret plates proposed by the present invention;

[0021] Figure 4 It is a schematic internal structure diagram of the box cover of a polishing device for intelligent processing of wool-type fiber spinneret plates proposed by the present invention;

[0022] Figure 5 It is a schematic distribution structure diagram of the moving mechanism and the dispersion mechanism of a polishing device for intelligent processing of wool-type fiber spinneret plates proposed by the present invention;

[0023] Figure 6 It is a schematic overall plane sectional structure diagram of a polishing device for intelligent processing of wool-type fiber spinneret plates proposed by the present invention;

[0024] Figure 7 Schematic structural diagram of the moving mechanism of a polishing device for intelligent processing of wool-type fiber spinnerets proposed in Embodiment 1 of the present invention;

[0025] Figure 8 Schematic structural diagram of the position of the dispersion net bag of a polishing device for intelligent processing of wool-type fiber spinnerets proposed by the present invention;

[0026] Figure 9 Schematic structural diagram of the dispersion mechanism of a polishing device for intelligent processing of wool-type fiber spinnerets proposed by the present invention;

[0027] Figure 10 Schematic structural diagram of the moving mechanism of a polishing device for intelligent processing of wool-type fiber spinnerets proposed in Embodiment 2 of the present invention;

[0028] Figure 11 Schematic structural diagram of the position of the blade of a polishing device for intelligent processing of wool-type fiber spinnerets proposed by the present invention.

[0029] In the figure: 1 polishing box, 101 liquid discharge port, 2 box cover, 201 liquid injection port, 3 hydraulic telescopic rod, 4 spinneret, 5 clamping plate, 6 moving mechanism, 7 guiding frame, 8 driving screw, 9 moving block, 901 contact piece, 10 motor one, 11 positioning screw, 12 nut, 13 mounting frame, 14 pressure sensor one, 15 dispersion net bag, 151 horizontal ring, 152 vertical ring, 16 annular frame, 17 motor two, 18 gear, 19 dispersion mechanism, 20 vertical shaft, 21 fixing frame, 22 blade plate, 23 sleeve, 24 limiting block, 25 extension plate, 251 through slot one, 26 blade, 261 through slot two, 27 auxiliary frame. Detailed implementation method

[0030] Embodiment 1: Refer to Figures 1-9 , a polishing device for intelligent processing of wool-type fiber spinnerets, including a polishing box 1 and a box cover 2. A hydraulic telescopic rod 3 is connected between the box cover 2 and the polishing box 1 to realize the opening and closing operation between the box cover 2 and the polishing box 1 through the hydraulic telescopic rod 3. A spinneret 4 is placed in the polishing box 1. The top end of the box cover 2 is communicated with a liquid injection port 201, the bottom of the polishing box 1 is communicated with a liquid discharge port 101. Clamping plates 5 are arranged around the spinneret 4. There are four clamping plates 5, and the four clamping plates 5 are annularly arranged in the circumferential direction of the spinneret 4. The bottom end of the clamping plate 5 is connected with a moving mechanism 6. The moving mechanism 6 drives the clamping plate 5 to horizontally move in the radial direction of the spinneret 4, so as to fix the spinneret 4 through the four movable clamping plates 5, and the spinneret 4 can be moved while maintaining the clamping through the coordinated movement of the four clamping plates 5. For example, Figure 3Taking [a certain situation] as an example, it is divided into four clamping plates 5, namely the upper clamping plate, the left clamping plate, the lower clamping plate, and the right clamping plate. By moving the upper clamping plate upward, the left clamping plate leftward, the lower clamping plate upward, the right clamping plate leftward, and moving an appropriate distance according to the radius of the spinneret 4, the spinneret 4 can be displaced in the upper left corner direction;

[0031] It also includes four groups of liquid pressure monitoring modules located below the spinneret 4. The four groups of liquid pressure monitoring modules correspond to the position of the moving mechanism 6. The liquid pressure monitoring modules are used to monitor the impact pressure of the fluid below the spinneret 4 in real time;

[0032] Four groups of rebound state monitoring modules located above the periphery of the spinneret 4. The four groups of rebound state monitoring modules are arranged at intervals with the liquid pressure monitoring modules, that is, the rebound state monitoring modules are arranged at the positions between adjacent two liquid pressure monitoring modules. The rebound state monitoring modules are used to monitor the impact force of the fluid and abrasive rebounding upward after hitting the spinneret 4 in real time;

[0033] Upload the monitoring data of the rebound state monitoring module and the liquid pressure monitoring module to the central processor. After comprehensive analysis, it is judged whether the corresponding position of the spinneret 4 is blocked. If the monitoring data of the rebound impact force of one of the rebound state monitoring modules is too large, and the monitoring data of the corresponding two-side liquid pressure monitoring modules is too small, it means that the holes at the corresponding position of the spinneret 4 are blocked, resulting in a large amount of abrasive rebounding upward and the fluid unable to effectively pass downward. Therefore, by controlling the moving mechanism 6 and the clamping plate 5 to adjust the position of the spinneret 4, the spinneret 4 is moved from the blockage monitoring position towards the center direction of the spinneret 4. Under the action of inertia, the blocked abrasive moves in the opposite direction of the moving direction of the spinneret 4, that is, the blocked abrasive moves towards the periphery of the spinneret 4 to achieve blockage removal, and continuous monitoring is carried out to analyze and feedback the adjusted data. During the polishing operation of the fluid and abrasive on the spinneret 4, intelligent adjustment is carried out according to the real-time polishing state to improve the effectiveness of the polishing operation and improve the operation efficiency.

[0034] In the present invention, the moving mechanism 6 is provided with a guiding frame 7 fixed to the inner wall of the polishing box 1. The guiding frame 7 extends along the radial direction of the spinneret 4 in the horizontal direction. A driving screw 8 is rotatably connected between the two ends of the guiding frame 7. One end of the driving screw 8 is drivingly connected to a first motor 10. It should be noted that one end of the driving screw 8 extends outside the polishing box 1, that is, a sealed shaft hole is provided at the position of the polishing box 1 housing corresponding to the driving screw 8. The outer wall of the driving screw 8 is rotatably connected to the sealed shaft hole. The housing of the first motor 10 is installed at the outer wall position of the polishing box 1, and the output shaft of the first motor 10 is fixed to the driving screw 8. A moving block 9 is threadedly connected to the outer wall of the driving screw 8. The moving block 9 is limited to slide with the guiding frame 7. The clamping plate 5 is installed above the moving block 9. The cross-sections of the guiding frame 7 and the moving block 9 are set to be rectangular structures. The outer walls on both sides of the moving block 9 are in sliding contact with the inner wall of the guiding frame 7, so as to limit the moving block 9 through the guiding frame 7 and prevent the moving block 9 from rotating with the rotation of the driving screw 8, so as to realize the moving operation of the moving block 9 driving the clamping plate 5 along the guiding frame 7.

[0035] In the present invention, the clamping plate 5 is set to be an L-shaped structure. Vertically downward extending positioning screws 11 are fixed on both sides of the bottom of the clamping plate 5 located at the two sides of the driving screw 8. Through holes are provided at the positions of the top of the moving block 9 corresponding to the positioning screws 11. The positioning screws 11 are in sliding contact with the through holes. Nuts 12 are threadedly connected to the positions of the positioning screws 11 at both ends of the through holes. Thus, the clamping plate 5 is installed on the moving block 9 through the positioning screws 11 and the nuts 12, so that the clamping plate 5 moves and is positioned along with the moving block 9. And through the setting of the positioning screws 11 and the nuts 12, the clamping plate 5 is separated from the moving block 9 and the guiding frame 7. While the placement height of the spinneret 4 can be vertically adjusted by the clamping plate 5, the bottom of the spinneret 4 is separated from the guiding frame 7, so that the fluid and abrasive passing through the spinneret 4 are sent downward to avoid congestion at the bottom of the spinneret 4, thereby avoiding affecting the polishing operation effect of the fluid and abrasive on the surface of the spinneret 4.

[0036] In the present invention, the liquid pressure monitoring module is provided with a first pressure sensor 14 corresponding to the position of the moving mechanism. An installation frame 13 is fixed at the position of the guiding frame 7 corresponding to the first pressure sensor 14. The first pressure sensor 14 is installed on the installation frame 13. The first pressure sensor 14 is located below the spinneret 4, and the detection head of the first pressure sensor 14 is vertically upward. Thus, the impact force of the fluid or abrasive passing through the spinneret 4 at a local position is monitored by the first pressure sensor 14 at a fixed position. When the data monitored by the first pressure sensor in real time is too small, it indicates that there may be abrasive blockage above the corresponding local position of the spinneret 4, resulting in the fluid or abrasive being unable to effectively pass through and fall, so it may be necessary to displace the spinneret 4 from the position of the first pressure sensor 14 towards the center of the spinneret 4.

[0037] In the present invention, a dispersion net pocket 15 is provided at a position on the inner wall of the top of the box cover 2 corresponding to the liquid injection port 201. The top of the dispersion net pocket 15 is open. An annular frame 16 is installed at a position on the inner wall of the top of the box cover 2 corresponding to the dispersion net pocket 15. The top of the outer wall of the dispersion net pocket 15 is fixed with a horizontal ring 151, and the outer wall of the horizontal ring 151 is slidably connected to the inner wall of the annular frame 16. The top end of the dispersion net pocket 15 is fixed with a vertical ring 152, and the inner wall of the vertical ring 152 is provided with tooth grooves distributed in an annular array. A second motor 17 is installed on the top of the box cover 2, and the output shaft of the second motor 17 is fixed with a gear 18 meshing with the tooth grooves, so that the fluid and abrasive entering through the liquid injection port 201 are dispersed by rotating the dispersion net pocket 15 and then contact the spinneret plate 4 for polishing operations.

[0038] In the present invention, a dispersion mechanism 19 is provided at a position between two adjacent moving mechanisms 6 in the box cover 2, that is, a total of four sets of dispersion mechanisms 19 are provided. The dispersion mechanism 19 is provided with a vertical shaft 20 extending vertically. Blades 22 are provided on both sides of the vertical shaft 20. The side of the blade 22 close to the vertical shaft 20 is fixed with a sleeve 23. The inner wall of the sleeve 23 is rotatably connected to the vertical shaft 20 through a torsion spring. The rebound state monitoring module is set as a torsion monitor located in the sleeve 23, and the torsion monitor is used to monitor the torsion of the corresponding torsion spring in real time. Under normal conditions, the two blades 22 are placed normally under the action of the torsion spring, and the torsion of the torsion spring is set to zero at this time. During the polishing operation, a small amount of fluid and abrasive in the dispersion net pocket 15 centrifugally impact on the blades 22, and some of the abrasive impacting on the upper surface of the spinneret plate 4 rebounds and impacts on the blades 22. When the top surface of the spinneret plate 4 is blocked, a large amount of fluid and abrasive will rebound onto the blades 22, so that the blades 22 will be impacted by more abrasive rebounds in a short time. And because the accumulation on the top surface of the spinneret plate 4 causes the distance of the abrasive rebounding onto the blades 22 to decrease and the rebound impact force to increase, the deflection angle of the blades 22 will increase and the duration will increase. If the deflection angle of the blades 22 exceeds a certain value and is maintained for a set time, it indicates that there is abrasive blockage on the surface of the corresponding position spinneret plate 4, which affects the normal polishing operation, so it is necessary to control the movement of the spinneret plate 4; the blades 22 connected by the torsion spring cooperate with the rotating dispersion net pocket to improve the uniformity of the polishing operation of the abrasive on the surface of the spinneret plate 4, and the area of the rebound state monitoring is enlarged by the setting of the blades 22, so as to improve the accuracy and comprehensiveness of the judgment on whether there is abrasive blockage on the surface of the spinneret plate 4.

[0039] In the present invention, fixing frames 21 are installed between the top and bottom of the vertical shaft 20 and the inner wall of the box cover 2. A limit block 24 is installed at a position of the vertical shaft 20 facing the spinneret plate 4, and the limit block 24 is used to prevent the blades 22 from rebounding too far during the rebound, which affects the polishing operation effect of the abrasive on the surface of the spinneret plate 4.

[0040] In the present invention, the control logic of the central processing unit is:

[0041] Step 1. The liquid pressure monitoring module collects the impact pressure of the fluid below the spinneret in real time, records data at a fixed frequency, filters the collected data to remove noise interference, uses the moving average filtering method, and calculates the average value of the past n data points as the effective pressure value at the current moment: Let the collected pressure data sequence be , the size of the sliding window is n, and n ≤ m, then the effective pressure value P t at the current moment t is calculated as ;

[0042] The rebound state monitoring module monitors the torsion of the torsion spring in real time, also collects data at a fixed frequency, normalizes the torsion data to make its value between 0 and 1 for subsequent analysis, compares the normalized data with the torsion value in the normal state, and zeros the torsion value in the normal state to calculate the torsion change: Let the collected torsion data be , the normalized torsion value , where T min and T max are the minimum and maximum torsion values collected respectively, calculate the torsion change at the current moment t, and record the duration t i of each non-zero torsion change at the same time;

[0043] Step 2. Comprehensive calculation, calculate the comprehensive blockage index C, , and are the weights of the pressure value and the torsion change respectively, and , P max is the maximum value in the pressure data, which is used to normalize the pressure value; represents the sum of all t i , where t i represents the time value at different moments or different stages. Here, all relevant time values are accumulated to obtain the total time amount; represents the product of the torsion change and the duration of the time period in the i-th time period, and is the sum of all these products to reflect the comprehensive influence of the torsion change and its maintenance time on the whole system;

[0044] Step 3. Set a comprehensive blockage threshold C th . When C > C th , it is considered that there is a blockage at the corresponding position of the spinneret. The value of C th can be determined by experience and historical records.

[0045] Example 2: Refer to Figures 2-6 and Figures 8-11, A polishing device for intelligent processing of wool-type fiber spinnerets. On the basis of Example 1, an extension plate 25 is installed at the bottom of the moving block 9. The extension plate 25 extends horizontally towards the spinneret 4. A through slot one 251 is opened at the top of the extension plate 25. On one side of the moving block 9 close to the spinneret 4, there is a blade 26. Both ends of the blade 26 are fixed with rotating shafts. The outer wall of the rotating shaft is rotationally connected with an auxiliary frame 27 through a torsion spring. The bottom end of the auxiliary frame 27 is fixed to the top of the extension plate 25. A through slot two 261 corresponding to the driving screw 8 is opened on the side of the blade 26. The blade 26 is inclined upwards away from the moving block 9, and the end of the blade 26 away from the moving block 9 is upturned. When impacted by the fluid or abrasive passing through the spinneret 4, the end of the blade 26 away from the moving block 9 will be squeezed downwards, while the end of the blade 26 close to the moving block 9 will impact upwards on the side wall of the moving block 9 and squeeze the side wall of the moving block 9. Due to the differences in fluid movement and abrasive distribution, the blade 26 impacts the side of the moving block 9 at intervals, thereby generating mechanical vibrations at the position of the clamping plate 5 around the spinneret 4 to disperse the abrasive on the surface and prevent the abrasive from accumulating and blocking.

[0046] In the present invention, a contact piece 901 is provided on one side of the moving block (9) close to the blade (26). A through hole is opened at the position of the contact piece 901 and the driving screw (8). A pressure sensor two is provided between the contact piece 901 and the moving block (9). When the fluid and abrasive passing through the spinneret (4) impact the upturned end of the blade (26), the end of the blade (26) close to the moving block (9) impacts and squeezes at the position of the contact piece 901. If the extrusion force is too small, the amount of fluid and abrasive passing through the spinneret (4) above the surface is too small, that is, there is a blockage above the corresponding position of the spinneret (4). Therefore, it is necessary to control the position of the moving spinneret (4), and the blade (26) is used to improve the monitoring area and accuracy of the liquid passing through below. The monitoring data of the pressure sensor two is uploaded to the central processor. The pressure sensor two collects the extrusion force data of the blade impacting the contact piece. Let the collected extrusion force data sequence be , and the sliding average filtering method is also used for processing. The size of the sliding window is set to k, k ≤ m, then the effective extrusion force value F at the current moment t t The calculation formula is ;

[0047] Calculate the comprehensive blockage index C, , 、 and are the weights of the pressure value and the torque change amount respectively, and , F max is the maximum value in the extrusion force data.

[0048] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, shall be covered by the protection scope of the present invention.

Claims

1. An intelligent polishing device for a wool-type fiber spinneret, comprising a polishing box (1) and a box cover (2). A hydraulic telescopic rod (3) is connected between the box cover (2) and the polishing box (1). A spinneret (4) is placed inside the polishing box (1). The top of the box cover (2) is communicated with a liquid injection port (201), and the bottom of the polishing box (1) is communicated with a liquid discharge port (101), characterized in that, Clamping plates (5) are arranged around the spinneret plate (4). A moving mechanism (6) is connected to the bottom end of the clamping plate (5). The moving mechanism (6) is provided with a guiding frame (7) fixed to the inner wall of the polishing box (1). A driving screw rod (8) is rotatably connected between the two ends of the guiding frame (7). One end of the driving screw rod (8) is drivingly connected to a first motor (10). A moving block (9) is threadedly connected to the outer wall of the driving screw rod (8). The moving block (9) is limited to slide between the guiding frame (7). The clamping plate (5) is installed above the moving block (9). It further includes four liquid pressure monitoring modules located below the spinneret plate (4). The four liquid pressure monitoring modules correspond to the position of the moving mechanism (6). The liquid pressure monitoring module is used to monitor the impact pressure of the fluid below the spinneret plate (4) in real time. Four rebound state monitoring modules located above the periphery of the spinneret plate (4). The four rebound state monitoring modules are arranged at intervals with the liquid pressure monitoring module. The rebound state monitoring module is used to monitor the impact force of the fluid and abrasive rebounding upward after hitting the spinneret plate (4) in real time. The monitoring data of the rebound state monitoring module and the liquid pressure monitoring module are uploaded to the central processor. After comprehensive analysis, the position of the spinneret plate (4) is adjusted by controlling the moving mechanism (6).

2. The polishing equipment for intelligent processing of wool-type fiber spinnerets according to claim 1, wherein, The clamping plate (5) is arranged in an L-shaped structure. Vertical positioning screw rods (11) extending downward are fixed on both sides of the bottom of the clamping plate (5) where the driving screw rod (8) is located. Through holes are opened at the positions corresponding to the positioning screw rods (11) on the top of the moving block (9). The positioning screw rods (11) are in sliding contact with the through holes. Nuts (12) are threadedly connected to the positions of the positioning screw rods (11) at both ends of the through holes.

3. The polishing device for intelligent processing of wool-type fiber spinnerets according to claim 2, wherein, The liquid pressure monitoring module is provided with a first pressure sensor (14).

4. A polishing device for intelligent processing of wool-type fiber spinnerets according to any one of claims 1 to 3, characterized in that, A dispersion mesh bag (15) is arranged at the position corresponding to the liquid injection port (201) on the inner wall of the top of the box cover (2). An annular frame (16) is installed at the position corresponding to the dispersion mesh bag (15) on the inner wall of the top of the box cover (2). A horizontal ring (151) is fixed to the top of the outer wall of the dispersion mesh bag (15). The outer wall of the horizontal ring (151) is slidably connected to the inner wall of the annular frame (16). A vertical ring (152) is fixed to the top end of the dispersion mesh bag (15). Tooth grooves are arranged in an annular array on the inner wall of the vertical ring (152). A second motor (17) is installed on the top of the box cover (2). A gear (18) meshing with the tooth grooves is fixed to the output shaft of the second motor (17).

5. The polishing device for intelligent processing of wool-type fiber spinnerets according to claim 4, characterized in that, A dispersion mechanism (19) is arranged at the position between two adjacent moving mechanisms (6) in the box cover (2). The dispersion mechanism (19) is provided with a vertical shaft (20) extending vertically. Blade plates (22) are arranged on both sides of the vertical shaft (20). A sleeve (23) is fixed to the side of the blade plate (22) close to the vertical shaft (20). The inner wall of the sleeve (23) is rotatably connected to the vertical shaft (20) through a torsion spring. The rebound state monitoring module is arranged as a torsion monitor located in the sleeve (23). The torsion monitor is used to monitor the torsion of the corresponding torsion spring in real time.

6. The polishing device for intelligent processing of wool-type fiber spinnerets according to claim 5, characterized in that, A fixing frame (21) is installed between the top and bottom ends of the vertical shaft (20) and the inner wall of the box cover (2), and a limiting block (24) is installed at the position of the vertical shaft (20) facing the spinneret (4).

7. The polishing device for intelligent processing of wool-type fiber spinnerets according to claim 5, characterized in that, The control logic of the central processing unit is as follows: Step 1: The liquid pressure monitoring module collects the impact pressure of the fluid below the spinneret in real time, records data at a fixed frequency, filters the collected data to remove noise interference, adopts the sliding average filtering method, and calculates the average value of the past data points as the effective pressure value at the current moment; The rebound state monitoring module monitors the torsion of the torsion spring in real time, also collects data at a fixed frequency, normalizes the torsion data, compares the normalized data with the torsion value in the normal state, and calculates the torsion change amount; Step 2: Comprehensive calculation, calculate the comprehensive blockage index C; Step 3. Set a comprehensive clogging threshold C th When C > C th it is considered that there is a clogging at the corresponding position of the spinneret.

8. The polishing device for intelligent processing of wool fiber spinnerets according to claim 7, characterized in that, An extension plate (25) is installed at the bottom of the moving block (9). A through groove 1 (251) is opened at the top of the extension plate (25). A blade (26) is arranged on one side of the moving block (9) close to the spinneret (4). Shafts are fixed at both ends of the blade (26). The outer wall of the shaft is rotationally connected with an auxiliary frame (27) through a torsion spring. The bottom end of the auxiliary frame (27) is fixed to the top of the extension plate (25). A through groove 2 (261) corresponding to the driving screw (8) is opened on the side of the blade (26). The blade (26) is inclined upward away from the moving block (9).

9. The polishing device for intelligent processing of wool-type fiber spinnerets according to claim 8, characterized in that, A contact piece (901) is arranged on one side of the moving block (9) close to the blade (26). A through hole is opened at the position of the contact piece (901) and the driving screw (8). A pressure sensor 2 is arranged between the contact piece (901) and the moving block (9).

Citation Information

Patent Citations

  • Micropore fluid polishing process for spinneret plate

    CN114193237A

  • Circular pipe inner wall ultrasonic vibration assisted abrasive current precise finishing device

    CN109531287A

  • Integral impeller part ultrasonic isostatic pressure viscoelastic abrasive polishing device and method

    CN111390660A