Automatic modified biomass fiber spinning tension adjusting equipment

Abstract

The invention discloses automatic modified biomass fiber spinning tension adjusting equipment, and relates to the technical field of tension adjusting equipment, the automatic modified biomass fiber spinning tension adjusting equipment comprises a mounting plate, a PID controller and a tension adjusting module, the outer wall of the mounting plate is provided with a mounting hole, and the tension adjusting module is arranged in the mounting hole; the tension adjusting module comprises a floating rod, a tension sensor, a slider and a guide rail. By installing the PID controller and the tension adjusting module, real-time monitoring and dynamic adjustment of tension are achieved, the stability and consistency of the production process are improved, the problems that a traditional manual adjusting mode is slow in response and low in precision are solved, and tension fluctuation caused by manual operation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of tension adjustment equipment, and particularly to an automatic tension adjustment equipment for modified biomass fiber spinning. Background Technique

[0002] In the field of modified biomass fiber spinning, tension control is a key link in determining the quality of fibers. Traditional spinning equipment mainly relies on manual experience to adjust tension. Traditional manual operation is difficult to respond to tension changes in real time, resulting in uneven fiber thickness and large strength differences. In the prior art, after setting a fixed tension value for mechanical equipment, it cannot adjust the tension in real time according to working conditions.

[0003] Patent CN116238964B discloses a nylon carbon fiber spinning winding equipment, and the above patent realizes the tension adjustment of nylon carbon fiber spinning through an adaptive spring.

[0004] The above patent realizes the tension adjustment of nylon carbon fiber spinning through an adaptive spring, but there is still room for optimization in the real-time tension adjustment of fiber spinning.

[0005] Therefore, this application proposes an automatic tension adjustment equipment for modified biomass fiber spinning that can adjust the tension of fiber spinning during transportation in real time. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic tension adjustment equipment for modified biomass fiber spinning to solve the technical problems in the above background technique that traditional manual operation is difficult to respond to tension changes in real time, resulting in uneven fiber thickness and large strength differences, and in the prior art, mechanical equipment cannot adjust the tension in real time according to working conditions after setting a fixed tension value.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: including a mounting plate, a PID controller, and a tension adjustment module. The outer wall of the mounting plate is provided with mounting holes, and the tension adjustment module is arranged in the mounting holes;

[0008] The tension adjustment module includes: a floating rod, a tension sensor, a slider, and a guide rail;

[0009] The floating rod is placed in the mounting hole. The bottom end of the outer wall of the floating rod is installed on the outer wall of the tension sensor. The other end of the outer wall of the tension sensor is connected with two sliders, and the two sliders are installed on two guide rails on the outer wall of the slider. The third data line in the tension sensor is connected to the bus in the mounting plate through the slider, and the other end of the bus is connected to the PID controller. A support rod is installed on the side surface of the outer wall of the mounting plate, and the other end of the support rod is provided with a connecting rod, and the connecting rod is connected to the PID controller through a movable shaft.

[0010] Preferably, an installation groove is provided on the outer wall of the mounting plate. There is a second screw hole respectively arranged at the upper and lower parts in the installation groove, and an installation hole is arranged inside the installation groove. The installation groove and the limit frame are mutually embedded. The two screw holes on the upper and lower parts of the limit frame match the second screw holes. A limit hole is arranged in the limit frame, and the limit hole matches the installation hole. Alarm devices are respectively installed at the top end and the bottom end of the inner wall of the limit hole.

[0011] Preferably, a first motor groove is provided on the outer wall of the mounting plate. A first screw hole is provided on the outer wall of the first motor groove, and a first connection hole is arranged inside the first motor groove. A driving module is installed in the first motor groove;

[0012] The driving module includes: a driving motor, a connecting plate, a rotating shaft and a base;

[0013] A driving motor is installed at the top end of the outer wall of the base. A connecting plate is arranged on the side surface of the outer wall of the driving motor. Four screw holes are arranged at the four corners of the connecting plate. Bolts pass through the fourth screw holes and are connected to the mounting plate. A rotating shaft is arranged on the side surface of the outer wall of the driving motor, and the rotating shaft is embedded with the first connection hole. A first data line is installed on the outer wall of the connecting plate. The first data line passes through the mounting plate and is connected to the bus, and then the first data line passes through the bus and is connected to the PID controller.

[0014] Preferably, a second motor groove is provided on the outer wall of the mounting plate. A second connection hole is arranged in the second motor groove. A traction module is installed in the second motor groove;

[0015] The traction module includes: a first traction shaft, a first flange, a bearing and a first traction motor;

[0016] The inside of the second motor groove is mutually embedded with the first flange. Bolts pass through the screw holes on the first flange and are tightly connected to the mounting plate. A bearing is arranged inside the first flange. A first traction shaft is installed on the side surface of the outer wall of the first traction motor. The first traction shaft passes through the second connection hole, the first flange and the bearing and contacts the fiber spinning.

[0017] Preferably, the rotating shaft passes through the first connection hole. The first motor groove is mutually embedded with the flange. Four screw holes are arranged on the outer wall of the flange, and the four screw holes are symmetrically matched with the four first screw holes on the first motor groove. Bolts pass through the first screw holes and the four screw holes on the flange to tightly connect the flange and the mounting plate. A bearing is installed inside the flange. The rotating shaft is connected to the first driving shaft in the spinning disc through the bearing. The first driving shaft passes through a side disc and is connected to the other side disc.

[0018] Preferably, a third motor slot is provided on the outer wall of the mounting plate. A third connection hole is provided inside the third motor slot. The third connection hole is fitted with the first motor shaft in the first servo motor. A connecting wire is provided at the top of the outer wall of the first servo motor. The connecting wire passes through the mounting plate and enters the bus, and is connected to the PID controller through the bus. A fourth motor slot is provided on the outer wall of the mounting plate. A fourth connection hole is provided inside the fourth motor slot. The fourth connection hole is fitted with the second motor shaft in the second servo motor. A connecting wire is provided at the top of the outer wall of the second servo motor. The connecting wire passes through the mounting plate and enters the bus, and is connected to the PID controller through the bus.

[0019] Preferably, the fiber spinning produced is wound on the first drive shaft in the spinning disk. After the fiber spinning bypasses the first drive shaft for one circle, it is transmitted to the first traction shaft in the traction module. The first traction shaft traction fiber spinning is transmitted to the first motor shaft. The first motor shaft transmits the fiber spinning to the floating rod), and is transmitted to the second motor shaft through the floating rod. The second motor shaft sends the fiber spinning to the second traction shaft. The second traction shaft transmits the fiber spinning into the second drive shaft.

[0020] Preferably, a fifth motor slot is provided on the outer wall of the mounting plate. A fifth connection hole is provided inside the fifth motor slot. The fifth connection hole is fitted with the second traction shaft. The fifth motor slot is fitted with the second flange. A bearing is provided inside the second flange. The second traction shaft is installed on the side of the outer wall of the second traction motor. The second traction shaft passes through the fifth connection hole and the bearing, and the extending end is in contact with the fiber spinning.

[0021] Preferably, a sixth motor slot is provided on the outer wall of the mounting plate. Four third screw holes are provided on the outer wall of the sixth motor slot. A sixth connection hole is provided inside the sixth motor slot. The sixth connection hole is fitted with the rotating shaft on the drive motor. The rotating shaft passes through the flange and the bearing and is connected to the second drive shaft on the wire take-up reel. The second data line on the drive motor is connected to the bus in the mounting plate and is connected to the PID controller through the bus.

[0022] Preferably, the floating rod in the tension adjustment module passes through the mounting hole and the limiting hole in the limiting frame to reach the working area. The bottom end of the outer wall of the extending end of the floating rod is in contact with the fiber spinning, so that the fiber spinning has a certain tension.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. By installing a PID controller and a tension adjustment module, the present invention realizes real-time monitoring and dynamic adjustment of the tension, improves the stability and consistency of the production process, solves the problems of slow response and low precision of the traditional manual adjustment method, and avoids the tension fluctuation caused by manual operation;

[0025] 2. By installing a limit frame and an alarm, the present invention realizes the safety protection and fault alarm of the device. The limit frame prevents the floating rod from excessive displacement, avoiding mechanical structure damage and fiber breakage. The alarm emits a warning in time when the tension is abnormal, reminding the operator to take measures, solving the problem in the prior art that the device fault is not discovered in time, resulting in the decline of product quality;

[0026] 3. By installing a drive module, the present invention realizes the efficient and stable transmission of fiber spinning. The drive motor provides a controllable power output, ensuring uniform tension during the transmission of fiber spinning, solving the problem of uneven fiber thickness caused by unstable rotation speed in the traditional drive mode;

[0027] 4. By installing a traction module, the present invention realizes the directional stretching and traction of fiber spinning. The multi-axis collaborative traction module can precisely control the stretching of the fiber, solving the problems of insufficient fiber strength and uneven elasticity in the prior art, and improving the physical properties and processing adaptability of the modified biomass fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0029] Figure 2 is a schematic diagram of the motor group structure of the present invention;

[0030] Figure 3 is a schematic diagram of the mounting plate structure of the present invention;

[0031] Figure 4 is a schematic diagram of the tension adjustment module structure of the present invention;

[0032] Figure 5 is a schematic diagram of the spinning disk structure of the present invention;

[0033] Figure 6 is a schematic diagram of the drive motor structure of the present invention;

[0034] Figure 7 is a schematic diagram of the limit frame structure of the present invention;

[0035] Figure 8 is a partial structure schematic diagram of the traction module of the present invention.

[0036] In the figure: 1, mounting plate; 2, first motor slot; 3, first connection hole; 4, first screw hole; 5, second motor slot; 6, second connection hole; 7, third motor slot; 8, third connection hole; 9, mounting slot; 10, mounting hole; 11, second screw hole; 12, fourth motor slot; 13, fourth connection hole; 14, fifth motor slot; 15, fifth connection hole; 16, sixth motor slot; 17, sixth connection hole; 18, third screw hole; 19, support rod; 20, connecting rod; 21, PID controller; 22, spinning disk; 23, first drive shaft; 24, side disk; 25, fiber spinning; 26, first traction shaft; 27, first flange; 28, bearing; 29, first motor shaft; 30, floating rod; 31, second motor shaft; 32, second traction shaft; 33, limit frame; 34, limit hole; 35, wire winding disk; 36, second drive shaft; 37, second flange; 38, drive motor; 39, connecting plate; 40, first data line; 41, fourth screw hole; 42, rotating shaft; 43, base; 44, tension sensor; 45, third data line; 46, slider; 47, guide rail; 48, second data line; 49, second servo motor; 50, connecting wire; 51, first servo motor; 52, first traction motor; 53, second traction motor; 54, alarm. Detailed implementation manner

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6 ,An embodiment provided by the present invention: An automatic modified biomass fiber spinning tension adjusting device, on the outer wall of the mounting plate 1, there is a first motor slot 2, on the outer wall of the first motor slot 2, there is a first screw hole 4, inside the first motor slot 2, there is a first connection hole 3, and a driving module is installed in the first motor slot 2;

[0041] The driving module includes: a driving motor 38, a connecting plate 39, a rotating shaft 42, and a base 43;

[0042] At the top of the outer wall of the base 43, a driving motor 38 is installed. On the side surface of the outer wall of the driving motor 38, there is a connecting plate 39. At the four corners of the connecting plate 39, there are fourth screw holes 41. Bolts pass through the fourth screw holes 41 and are connected to the mounting plate 1. On the side surface of the outer wall of the driving motor 38, there is a rotating shaft 42, and the rotating shaft 42 is fitted with the first connection hole 3. On the outer wall of the connecting plate 39, a first data line 40 is installed. The first data line 40 passes through the mounting plate 1 and is connected to the bus, and then the first data line 40 passes through the bus and is connected to the PID controller 21;

[0043] Further, before starting, the pre-fiber spinning 25 is in a relaxed state on the device. First, the driving module is used to spin the fiber spinning 25 forward. An initial tension of 0.5 N is set on the PID controller 21. The PID controller 21 is the core control unit of the entire tension adjustment system and can accurately control the working state of the driving module according to the preset value and real-time feedback data. The PID controller 21 transmits the instruction to the driving module through the second data line 48. The driving motor 38 in the driving module starts to drive the rotating shaft 42 to rotate. The rotating shaft 42 is connected to the second driving shaft 36 through a bearing 28. The rotation of the rotating shaft 42 drives the rotation of the second driving shaft 36. The rotation of the second driving shaft 36 drives the fiber spinning 25 in contact with the surface to wind and contract on the shaft, and the tension is gradually transmitted to the second motor shaft 31, driving the fiber spinning 25 on the second motor shaft 31 to contract, so that the fiber spinning 25 gradually tightens;

[0044] Meanwhile, the first drive shaft 23 also drives the fiber spinning 25 at the right time under the drive of the drive module. Through the winding and contraction of the fiber spinning 25, the tension is gradually transmitted to the first motor shaft 29, driving the fiber spinning 25 on the first motor shaft 29 to contract, and making the tension of the fiber spinning 25 gradually increase;

[0045] At this time, the tension of the fiber spinning 25 on the floating rod 30 exerts a pressure on the floating rod 30. The tension sensor 44 detects the pressure on the lower surface of the floating rod 30. The tension sensor 44 adopts a high-precision strain gauge sensor, which can convert the mechanical pressure signal into an electrical signal and transmit the data back to the PID controller 21 through the third data line 45. The PID controller 21 compares the actually detected tension value with the preset initial tension of 0.5 N. If the actual tension is equal to the preset tension of 0.5 N, the PID controller 21 issues an instruction to control the drive module to stop driving. If the actual tension is less than the preset tension, the PID controller 21 does not issue an instruction, and the drive module continues to contract the fiber spinning 25 until it reaches the preset tension and stops running.

[0046] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 8 and

[0047] An embodiment provided by the present invention: an automatic modified biomass fiber spinning tension regulating device. A first motor slot 2 is provided on the outer wall of the mounting plate 1. A first screw hole 4 is provided on the outer wall of the first motor slot 2. A first connection hole 3 is provided inside the first motor slot 2. A drive module is installed in the first motor slot 2;

[0048] The drive module includes: a drive motor 38, a connecting plate 39, a rotating shaft 42 and a base 43;

[0049] The drive motor 38 is installed at the top end of the outer wall of the base 43. A connecting plate 39 is provided on the side of the outer wall of the drive motor 38. Four corners of the connecting plate 39 are provided with fourth screw holes 41. Bolts pass through the fourth screw holes 41 and are connected to the mounting plate 1. A rotating shaft 42 is provided on the side of the outer wall of the drive motor 38. The rotating shaft 42 is fitted with the first connection hole 3. A first data line 40 is installed on the outer wall of the connecting plate 39. The first data line 40 passes through the mounting plate 1 and is connected to the bus, and then the first data line 40 passes through the bus and is connected to the PID controller 21;

[0050] The interior of the second motor slot 5 is fitted with the first flange 27. Bolts pass through the screw holes on the first flange 27 and are tightly connected to the mounting plate 1. A bearing 28 is arranged inside the first flange 27. The outer wall side of the first traction motor 52 is equipped with a first traction shaft 26. The first traction shaft 26 passes through the second connection hole 6, the first flange 27 and the bearing 28 and contacts the fiber spinning 25;

[0051] The first drive shaft 23 in the spinning disk 22 is wound with the made fiber spinning 25. After the fiber spinning 25 bypasses the first drive shaft 23 for one circle, it is transmitted to the first traction shaft 26 in the traction module. The first traction shaft 26 pulls the fiber spinning 25 and transmits it to the first motor shaft 29. The first motor shaft 29 transmits the fiber spinning 25 onto the floating rod 30 and then transmits it to the second motor shaft 31 through the floating rod 30. The second motor shaft 31 sends the fiber spinning 25 onto the second traction shaft 32. The second traction shaft 32 transmits the fiber spinning 25 into the second drive shaft 36;

[0052] Furthermore, after the equipment corrects the fiber spinning 25 at the correct time, the equipment transports the fiber spinning 25. After the equipment starts, the nozzle sprays the fiber spinning 25 onto the first drive shaft 23 on the drive module. The drive motor 38 in the drive module rotates the rotating shaft 42 at a stable speed under the precise control of the PID controller 21. The rotating shaft 42 drives the first drive shaft 23 to rotate. The surface of the first drive shaft 23 is specially treated with appropriate roughness and friction, which can effectively grab the fiber spinning 25 and smoothly push the fiber spinning 25 onto the traction module;

[0053] The traction module provides a stable traction force for the fiber spinning 25, which can ensure that the fiber spinning 25 maintains a constant tension and speed during the transmission process. The first traction shaft 26 is driven by the first traction motor 52. The PID controller 21 can precisely control the rotation speed of the first traction motor 52 through the data line and adjust the traction force of the first traction shaft 26 on the fiber spinning 25;

[0054] The first traction shaft 26 pulls the fiber spinning 25 onto the first motor shaft 29. The first motor shaft 29 not only plays the role of transmitting the fiber spinning 25, but also performs preliminary stretching and orientation processing on the fiber spinning 25. The PID controller 21 can adjust the stress state of the fiber spinning 25 during the transmission process by controlling the rotation speed and direction of the first motor shaft 29, making the molecular chains of the fiber spinning 25 more orderly arranged and improving the strength and performance of the fiber spinning 25;

[0055] The fiber spinning 25 is transmitted from the first motor shaft 29 to the floating rod 30. The floating rod 30 can adjust the tension of the fiber spinning 25 in real time. After leaving the floating rod 30, the fiber spinning 25 is transmitted to the second motor shaft 31. The second motor shaft 31 further stretches and orients the fiber spinning 25, further improving the performance of the fiber spinning 25.

[0056] Then, the second motor shaft 31 sends the fiber spinning 25 to the second traction shaft 32 driven by the second servo motor 49. The second traction shaft 32 works in cooperation with the first traction shaft 26 to jointly ensure the stability and uniformity of the fiber spinning 25 during the entire transmission process. The second traction shaft 32 transmits the fiber spinning 25 into the second drive shaft 36 driven by the second traction motor 53. The rotation of the drive motor 38 drives the second drive shaft 36 to wind up the fiber spinning 25.

[0057] Please refer to Figure 1 、 Figure 2 and Figure 4 As shown in

[0058] An embodiment provided by the present invention: an automatic modified biomass fiber spinning tension adjustment device, including a mounting plate 1, a PID controller 21 and a tension adjustment module. The outer wall of the mounting plate 1 is provided with mounting holes 10, and a tension adjustment module is arranged in the mounting holes 10;

[0059] The tension adjustment module includes: a floating rod 30, a tension sensor 44, a slider 46 and a guide rail 47;

[0060] On the outer wall of the mounting plate 1, there is a third motor slot 7. Inside the third motor slot 7, there is a third connection hole 8. The third connection hole 8 is fitted with the first motor shaft 29 in the first servo motor 51. On the top of the outer wall of the first servo motor 51, there is a connecting wire 50. The connecting wire 50 passes through the mounting plate 1 and enters the bus, and is connected to the PID controller 21 through the bus. On the outer wall of the mounting plate 1, there is a fourth motor slot 12. Inside the fourth motor slot 12, there is a fourth connection hole 13. The fourth connection hole 13 is fitted with the second motor shaft 31 in the second servo motor 49. On the top of the outer wall of the second servo motor 49, there is a connecting wire 50. The connecting wire 50 passes through the mounting plate 1 and enters the bus, and is connected to the PID controller 21 through the bus;

[0061] Further, when the first motor shaft 29 transports the fiber spinning 25 to the lower surface of the floating rod 30 at a uniform speed, the fiber spinning 25 reaches the second motor shaft 31 through the lower surface of the floating rod 30. At this time, during the uniform transportation of the fiber spinning 25, an upward pressure is applied to the floating rod 30. The tension sensor 44 detects the pressure received by the floating rod 30 in real time. The detection accuracy of the tension sensor 44 is around 0.01 N, and the response time is less than 5 ms. It can capture the subtle pressure fluctuations of the fiber spinning 25 on the floating rod 30. After converting the pressure signal into an electrical signal, the tension sensor 44 transmits it to the slider 46 through the third data line 45, and then uploads it to the PID controller 21 through the bus system inside the mounting plate 1;

[0062] The PID controller 21 compares the pressure value detected in real time with the preset tension value. If the pressure value is equal to the preset tension value, the equipment operates normally. If the pressure value during the transportation of the fiber spinning 25 is greater than the preset tension value, the PID controller 21 sends an instruction to the slider 46 in the tension adjustment module through the third data line 45. After receiving the instruction, the slider 46 drives the tension sensor 44 to move upward through the guide rail 47. The upward movement of the tension sensor 44 drives the floating rod 30 to move upward. The upward movement of the floating rod 30 will change the running path of the fiber spinning 25, reducing the bending angle of the fiber spinning 25 on the lower surface of the floating rod 30, thereby reducing the pressure acting on the lower surface of the floating rod 30. The upward movement of the floating rod 30 causes the pressure of the fiber spinning 25 acting on the lower surface of the floating rod 30 to decrease;

[0063] At this time, the tension sensor 44 detects the pressure value received by the floating rod 30 in real time and feeds it back to the PID controller 21. The PID controller 21 compares the pressure value received by the floating rod 30 with the preset tension value in real time. When it detects that the pressure value received by the floating rod 30 is equal to the preset tension value, the PID controller 21 issues an instruction to the slider 46 to stop moving upward. If it detects that the pressure value received by the floating rod 30 is still greater than the preset tension value, the slider 46 continues to move upward until the pressure value received by the floating rod 30 is equal to the preset tension value;

[0064] During operation, if the tension of the fiber spinning 25 suddenly increases significantly, such as raw material fluctuations, the tension sensor 44 will quickly detect this change and feed it back to the PID controller 21. The PID controller 21 will immediately issue a rapid response instruction, and the slider 46 drives the floating rod 30 to move upward at the maximum speed. At the same time, the PID controller 21 will send a cooperative control instruction to the first servo motor 51 and the second servo motor 49 to reduce the conveying speed of the fiber spinning 25 and avoid further deterioration of the tension; until the tension of the fiber spinning 25 returns to the safe range, the system then resumes normal operation;

[0065] When the tension of the fiber spinning 25 is lower than the preset value, the PID controller 21 issues a downward control instruction through the third data line 45, and the slider 46 drives the tension sensor 44 to move downward, thereby driving the floating rod 30 to move downward, increasing the bending angle of the fiber spinning 25, and increasing the tension of the fiber spinning 25 at this time. When the detected pressure value is equal to the preset tension value, the device resumes normal operation. The entire adjustment process follows the closed-loop control logic of detection, comparison, adjustment, and finally back to detection to ensure that the tension of the fiber spinning 25 always remains within an accurate range.

[0066] Please refer to Figure 1 、 Figure 2 and Figure 7 As shown in

[0067] Further, during the operation of the device, when the tension sensor 44 detects that the pressure on the lower surface of the floating rod 30 suddenly increases, the tension sensor 44 feeds back the detected pressure value to the PID controller 21 through the third data line 45. The PID controller 21 issues an instruction, and the slider 46 moves upward. At this time, the floating rod 30 moves upward. When the floating rod 30 keeps moving upward and touches the alarm 54 in the limit frame 33, the alarm 54 is internally provided with a pressure sensor. When the pressure in the alarm 54 reaches the set threshold value of 0.5 N, the alarm 54 transmits an alarm signal to the PID controller 21 through the bus. The PID controller 21 issues an emergency stop instruction to each module, and the device stops operating emergently, and an emergency situation is displayed on the display screen of the PID controller;

[0068] During the operation, when the tension sensor 44 detects that the pressure on the lower surface of the floating rod 30 suddenly decreases, the tension sensor 44 feeds back the detected pressure value to the PID controller 21 through the third data line 45. The PID controller 21 issues an instruction, and the slider 46 moves downward. At this time, the floating rod 30 moves downward. The floating rod 30 moves upward and touches the alarm 54 in the limit frame 33 until the pressure in the alarm 54 reaches the set threshold value of 0.5 N. The alarm 54 transmits an alarm signal to the PID controller 21 through the bus. The PID controller 21 issues an emergency stop instruction to each module, and the device stops operating emergently, and an emergency situation is displayed on the display screen of the PID controller 21.

[0069] Please refer to Figure 1 and Figure 2 As shown in [figures not provided], an embodiment provided by the present invention: an automatic modified biomass fiber spinning tension regulating device, including a mounting plate 1, a PID controller 21 and a tension regulating module. The outer wall of the mounting plate 1 is provided with mounting holes 10, and a tension regulating module is arranged in the mounting holes 10; the tension regulating module includes: a floating rod 30, a tension sensor 44, a slider 46 and a guide rail 47;

[0070] The floating rod 30 is placed in the mounting hole 10. The bottom end of the outer wall of the floating rod 30 is mounted on the outer wall of the tension sensor 44. The other end of the outer wall of the tension sensor 44 is connected with two sliders, and the two sliders are mounted on two guide rails 47 on the outer wall of the slider 46. The third data line 45 in the tension sensor 44 is connected to the bus in the mounting plate 1 through the slider 46, and the other end of the bus is connected to the PID controller 21. A support rod 19 is mounted on the side surface of the outer wall of the mounting plate 1, and the other end of the support rod 19 is provided with a connecting rod 20. The connecting rod 20 is connected to the PID controller 21 through a movable shaft;

[0071] Further, the PID controller 21 includes a display screen and a processor. The display screen can display the normal and emergency situations of the equipment operation. At the same time, the tension value of the fiber spinning 25 and the motor running speed can be set on the display screen. The PID algorithm is set in the processor;

[0072] The tension sensor 44 detects the pressure on the floating rod 30 in real time, converts the mechanical force into an electrical signal, and the signal is transmitted to the slider 46 through the third data line 45, and then uploaded to the PID controller 21 through the bus system in the mounting plate 1. The PID controller 21 compares the actually collected tension value with the preset tension value, calculates the current error e(t), and based on the error e(t), the PID controller 21 calculates and outputs the control quantity u(t) according to the following formula;

[0073] ;

[0074] Proportion P: Responsive to the current error proportionally, K P Increasing it can accelerate the system response speed, but if it is too large, it will cause system oscillation;

[0075] Integral I: Accumulating historical errors to eliminate steady-state errors, K I Increasing it can reduce the static error, but it will increase the system overshoot;

[0076] Derivative D: Predicting the change trend of the error, K D Increasing it can improve the dynamic characteristics of the system and suppress oscillation;

[0077] The PID controller 21 converts the output control quantity u(t) into an electrical signal and transmits it to each module.

[0078] Working principle: First, the equipment performs positive positioning on the fiber spinning 25 through the driving modules at both ends. After the positive positioning is completed, the equipment starts. The fiber spinning 25 is output from the spinning disk 22 and passes through the driving module, the traction module, the motor shaft and the floating rod 30 in sequence. The tension sensor 44 detects the pressure on the lower surface of the floating rod 30 in real time;

[0079] The tension sensor 44 transmits the pressure data to the PID controller 21 through the third data line 45. The PID controller 21 compares the real-time pressure value with the preset value, calculates the control quantity through the PID algorithm, outputs an electrical signal to drive the slider 46, and the slider 46 drives the floating rod 30 to move up and down along the guide rail 47 to change the fiber bending angle to adjust the tension. When the actual tension is higher than the preset value, the floating rod 30 moves up to reduce the tension; otherwise, it moves down to increase the tension;

[0080] Finally, when the floating rod 30 moves up or down to the limit and touches the alarm 54, the alarm 54 detects that the pressure reaches the preset threshold and feeds it back to the PID controller 21. The PID controller 21 controls the device to stop urgently and reminds the staff on the display screen.

[0081] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An automatic tension adjustment device for modified biomass fiber spinning, comprising a mounting plate (1), a PID controller (21) and a tension adjustment module, characterized in that: The outer wall of the mounting plate (1) is provided with mounting holes (10), and a tension adjustment module is arranged in the mounting holes (10); The tension adjustment module includes: a floating rod (30), a tension sensor (44), a slider (46) and a guide rail (47); A floating rod (30) is placed in the mounting hole (10). The bottom end of the outer wall of the floating rod (30) is mounted on the outer wall of the tension sensor (44). The other end of the outer wall of the tension sensor (44) is connected with two sliders, and the two sliders are mounted on two guide rails (47) on the outer wall of the slider (46). The third data line (45) in the tension sensor (44) is connected to the bus in the mounting plate (1) through the slider (46), and the other end of the bus is connected to the PID controller (21). A support rod (19) is mounted on the side surface of the outer wall of the mounting plate (1), and the other end of the support rod (19) is provided with a connecting rod (20). The connecting rod (20) is connected to the PID controller (21) through a movable shaft.

2. The automatic modified biomass fiber spinning tension regulating device according to claim 1, wherein: The outer wall of the mounting plate (1) is provided with a mounting groove (9). There are two second screw holes (11) arranged up and down in the mounting groove (9). An installation hole (10) is arranged inside the mounting groove (9). The mounting groove (9) is mutually embedded with a limit frame (33). The two screw holes on the upper and lower parts of the limit frame (33) match the second screw holes (11). A limit hole (34) is arranged in the limit frame (33), and the limit hole (34) matches the installation hole (10). Alarm devices (54) are mounted at the top and bottom ends of the inner wall of the limit hole (34).

3. An automatic modified biomass fiber spinning tension regulating device according to claim 1, characterized in that: The outer wall of the mounting plate (1) is provided with a first motor groove (2). The outer wall of the first motor groove (2) is provided with a first screw hole (4). A first connection hole (3) is arranged inside the first motor groove (2). A drive module is mounted in the first motor groove (2); The drive module includes: a drive motor (38), a connecting plate (39), a rotating shaft (42) and a base (43); The drive motor (38) is mounted at the top end of the outer wall of the base (43). A connecting plate (39) is arranged on the side surface of the outer wall of the drive motor (38). Four corners of the connecting plate (39) are provided with fourth screw holes (41). Bolts pass through the fourth screw holes (41) and are connected to the mounting plate (1). A rotating shaft (42) is arranged on the side surface of the outer wall of the drive motor (38), and the rotating shaft (42) is embedded with the first connection hole (3). A first data line (40) is mounted on the outer wall of the connecting plate (39). The first data line (40) passes through the mounting plate (1) and is connected to the bus, and then the first data line (40) passes through the bus and is connected to the PID controller (21).

4. An automated modified biomass fiber spinning tension adjustment device according to claim 1, characterized in that: A second motor groove (5) is arranged on the outer wall of the mounting plate (1). A second connection hole (6) is arranged in the second motor groove (5). A traction module is mounted in the second motor groove (5); The traction module includes: a first traction shaft (26), a first flange (27), a bearing (28) and a first traction motor (52); Inside the second motor slot (5), it fits snugly with the first flange (27). Bolts pass through the screw holes on the first flange (27) and are tightly connected to the mounting plate (1). Inside the first flange (27), there is a bearing (28). On the outer wall side of the first traction motor (52), there is a first traction shaft (26). The first traction shaft (26) passes through the second connection hole (6), the first flange (27), and the bearing (28) and contacts the fiber spinning (25).

5. An automated modified biomass fiber spinning tension adjustment device according to claim 3, characterized in that: The rotating shaft (42) passes through the first connection hole (3). The first motor slot (2) fits snugly with the flange. There are four screw holes on the outer wall of the flange, and the four screw holes are symmetrically matched with the four first screw holes (4) on the first motor slot (2). Bolts pass through the first screw holes (4) and the four screw holes on the flange to tightly connect the flange and the mounting plate (1). Inside the flange, there is a bearing (28). The rotating shaft (42) is connected to the first drive shaft (23) in the spinning disk (22) through the bearing (28). The first drive shaft (23) passes through a side disk (24) and is connected to the other side disk (24).

6. An automatic modified biomass fiber spinning tension regulating device according to claim 1, characterized in that: On the outer wall of the mounting plate (1), there is a third motor slot (7). Inside the third motor slot (7), there is a third connection hole (8). The third connection hole (8) fits snugly with the first motor shaft (29) in the first servo motor (51). On the top of the outer wall of the first servo motor (51), there is a connecting wire (50). The connecting wire (50) passes through the mounting plate (1) and enters the bus, and is connected to the PID controller (21) through the bus. On the outer wall of the mounting plate (1), there is a fourth motor slot (12). Inside the fourth motor slot (12), there is a fourth connection hole (13). The fourth connection hole (13) fits snugly with the second motor shaft (31) in the second servo motor (49). On the top of the outer wall of the second servo motor (49), there is a connecting wire (50). The connecting wire (50) passes through the mounting plate (1) and enters the bus, and is connected to the PID controller (21).

7. An automated modified biomass fiber spinning tension regulating device according to claim 5, characterized in that: The made fiber spinning (25) is wound on the first drive shaft (23) in the spinning disk (22). After the fiber spinning (25) goes around the first drive shaft (23) once, it is transmitted to the first traction shaft (26) in the traction module. The first traction shaft (26) pulls the fiber spinning (25) and transmits it to the first motor shaft (29). The first motor shaft (29) transmits the fiber spinning (25) to the floating rod (30), and through the floating rod (30), it is transmitted to the second motor shaft (31). The second motor shaft (31) sends the fiber spinning (25) to the second traction shaft (32). The second traction shaft (32) transmits the fiber spinning (25) into the second drive shaft (36).

8. An automatic modified biomass fiber spinning tension regulating device according to claim 1, characterized in that: The outer wall of the mounting plate (1) is provided with a fifth motor slot (14), and a fifth connection hole (15) is arranged inside the fifth motor slot (14). The fifth connection hole (15) and the second traction shaft (32) are mutually engaged. The fifth motor slot (14) and the second flange (37) are mutually engaged. A bearing (28) is arranged inside the second flange (37). The second traction shaft (32) is installed on the outer wall side of the second traction motor (53). The second traction shaft (32) passes through the fifth connection hole (15) and the bearing (28), and the extending end contacts the fiber spinning (25).

9. An automatic tension adjustment device for modified biomass fiber spinning according to claim 1, characterized in that: The outer wall of the mounting plate (1) is provided with a sixth motor slot (16). Four third screw holes (18) are arranged on the outer wall of the sixth motor slot (16). A sixth connection hole (17) is arranged inside the sixth motor slot (16). The sixth connection hole (17) and the rotating shaft (42) on the driving motor (38) are mutually engaged. The rotating shaft (42) passes through the flange and the bearing (28) and is connected to the second driving shaft (36) on the wire winding disc (35). The second data line (48) on the driving motor (38) is connected to the bus in the mounting plate (1) and is connected to the PID controller (21) through the bus.

10. The automated modified biomass fiber spinning tension regulating device according to claim 1, characterized in that: The floating rod (30) in the tension adjustment module passes through the mounting hole (10) and the limiting hole (34) in the limiting frame (33) to reach the working area. The bottom end of the outer wall of the extending end of the floating rod (30) contacts the fiber spinning (25) to make the fiber spinning (25) have a certain tension.

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