Rotary chopping machine for composite differentiated short fibers and control method of rotary chopping machine

Abstract

The invention relates to the technical field of rotary chopping machines, in particular to a rotary chopping machine for composite differentiation short fibers and a control method thereof.The rotary chopping machine comprises a chopping machine body, short fiber cloth and a cutterhead, the cutterhead is fixedly connected to one side of the chopping machine body, the short fiber cloth is arranged on the outer side of the cutterhead, and a sensing device is fixedly connected to one side of the chopping machine body; a driving fan is fixedly connected to the inner side of the chopping machine; the induction device comprises an induction plate, an induction groove is formed in the inner side of the induction plate, a push rod is arranged at one end of the induction groove, mercury is arranged at the other end of the push rod, and a glass tube is arranged outside the mercury; the driving fan comprises a mounting plate, one side of the mounting plate is fixedly connected with a motor, one end of a main shaft of the motor is fixedly connected with a fan, and one side of the motor is fixedly connected with a shell. Energy consumption is optimized, safety is enhanced, it is guaranteed that the temperature is more stable, and cutting efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary short-cutting machines, and in particular to a rotary short-cutting machine for composite differentiated short fibers and a control method thereof. Background Art

[0002] The rotary short-cut machine for composite differentiated short fibers is a device specially used for processing composite differentiated short fibers. It cuts the short fibers by a rotating knife disc. The short-cut machine may include components such as built-in rollers, cooling pipes, and fixed rotating parts, which work together to improve the heat dissipation effect and cutting efficiency of the short fibers during transmission.

[0003] The rotary short-cutting machine for composite differentiated short fibers generally stops the machine during the cutting process and regularly sharpens the blade to restore its sharpness. A professional sharpener and a suitable sharpening angle are used to ensure that the blade edge is sharp and uniform.

[0004] During the cutting process of the rotary short-cutting machine for composite differentiated short fibers, the blade will experience periodic heating and cooling. This repeated temperature change will cause thermal stress inside the material, which will cause fatigue and damage to the microstructure under long-term action, resulting in changes in the microstructure of the blade material, such as annealing and reduction of hardness. Thermal stress will cause the expansion of microscopic defects inside the material and form microcracks, thereby accelerating the blunting of the blade and affecting the cutting effect.

[0005] Therefore, in order to solve the above problems, a rotary short-cutting machine for composite differentiated short fibers and a control method thereof are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a rotary short-cutting machine for composite differentiated short fibers and a control method thereof, so as to solve the problem mentioned in the above background technology that thermal stress will cause the expansion of microscopic defects inside the material and form microcracks, thereby accelerating the blunting of the blade and affecting the cutting effect.

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

[0008] A rotary short-cut machine for composite differentiated short fibers and a control method thereof, comprising a short-cut machine, a short-cut fiber cloth and a knife disc, wherein a knife disc is fixedly connected to one side of the short-cut machine, and a short-cut fiber cloth is arranged on the outer side of the knife disc, a sensing device is fixedly connected to one side of the short-cut machine, and a driving fan is fixedly connected to the inner side of the short-cut machine; the sensing device comprises a sensing plate, a sensing groove is opened on the inner side of the sensing plate, a push rod is arranged at one end of the sensing groove, mercury is arranged at the other end of the push rod, and a glass tube is arranged on the outer side of the mercury; the driving fan comprises a mounting plate, a motor is fixedly connected to one side of the mounting plate, a fan is fixedly connected to one end of the motor main shaft, and a shell is fixedly connected to one side of the motor.

[0009] As a further optimization of the present invention, one end of the glass tube is fixedly connected to one side of the sensing plate, one end of the push rod is arranged on one side of the glass tube, the push rod is tightly attached to one end of the mercury, the other end of the push rod is slidably connected to the sensing groove, and one end of the glass tube is 5 mm away from the upper end of the knife disc.

[0010] As a further optimization of the present invention, one end of the motor main shaft passes through the casing and is connected to the center point of the fan, the angle between the fan and the motor main shaft is 90°, the motor is arranged between the mounting plate and the casing, and the casing and the mounting plate are parallel to each other.

[0011] As further optimized content of the present invention, the sensing device includes: the temperature detection element, signal conditioning circuit, microcontroller, LED display screen for displaying temperature, and battery module; and the driving fan includes a control interface, temperature threshold value, and control algorithm function.

[0012] As a further optimized content of the present invention, the temperature change of the cutter head will be transmitted to the mercury, causing the mercury to expand or contract, V0 is the volume of the mercury at the initial temperature, α is the thermal expansion coefficient of the mercury, △T is the temperature change, and the mercury is in direct contact with the mercury. The volume change ΔV of the mercury can be approximately expressed by the following formula:

[0013] ΔV=V0α△T.

[0014] As a further optimization of the present invention, the change in the volume of mercury causes a push rod connected to the mercury to move, and the moving distance ΔL of the push rod is proportional to the change in the volume of mercury:

[0015] ΔL=kΔV

[0016] where k is the proportionality constant.

[0017] As a further optimization of the present invention, the sensing device detects the temperature according to the moving distance of the push rod.

[0018] T=T0+cΔL

[0019] in:

[0020] T is the detected temperature;

[0021] T0 is the ambient or initial temperature;

[0022] c is the coefficient that converts the travel distance into temperature change.

[0023] As a further optimized content of the present invention, the motor speed N is adjusted according to the detected temperature to control the cooling rate. Assuming that the motor speed is inversely proportional to the temperature:

[0024]

[0025] in:

[0026] N0 is the reference speed, and λ is the adjustment coefficient, which determines the sensitivity of the speed to temperature changes.

[0027] As a further optimization of the present invention, the relationship between the temperature change of the cutter head and the motor speed is calculated by a comprehensive formula as follows:

[0028]

[0029] The parameters α, k, c, λ, V0, T0, and N0 in this formula need to be measured and determined based on actual conditions.

[0030] As further optimized content of the present invention, wherein: S1: power is turned on, the system is initialized, the microcontroller starts to run, the temperature sensing device monitors the temperature of the target area in real time, and transmits the data to the microcontroller;

[0031] S2: The microcontroller receives the temperature data and compares it with the preset temperature threshold. The microcontroller calculates the required driving fan speed based on the comparison result and the built-in control algorithm. The microcontroller outputs a control signal to the motor to adjust the fan speed in response to the temperature change.

[0032] S3: The fan runs at the adjusted speed to cool or heat the target area to maintain a stable temperature. If the monitored temperature exceeds the safety threshold, the system automatically reduces the fan speed or triggers an alarm.

[0033] S4: The system displays the current temperature and fan status through the user interface, providing real-time feedback;

[0034] S5: Users can manually set the temperature threshold or adjust the fan speed through the control interface;

[0035] S6: After the user completes the operation, the system can be shut down. At this time, the microcontroller stops working and the fan stops running.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. In the present invention, the fan speed is controlled by an algorithm to respond to temperature changes, so as to achieve precise temperature control, improve energy efficiency, ensure system stability, and simplify user operation through automatic adjustment. At the same time, through real-time monitoring and prediction, energy consumption is optimized and safety is enhanced, so as to ensure a more stable temperature and improve cutting efficiency.

[0038] 2. In the present invention, the induction device can continuously detect the temperature of the environment or a specific area, provide real-time data for control, ensure that the temperature is maintained within the ideal range, reduce temperature fluctuations, and provide a stable working environment;

[0039] 3. In the present invention, the motor plays a key role in adjusting the fan speed in the system to achieve precise temperature control. It responds quickly through algorithm instructions, effectively manages energy consumption, and improves system efficiency;

[0040] 4. In the present invention, the fan is set to intelligently adjust the rotation speed to effectively control the temperature, improve energy efficiency and system stability, respond quickly, ensure environmental comfort, and reduce noise and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the induction plate of the present invention;

[0043] Figure 3 This is a schematic diagram of the overall structure of the driving fan of the present invention.

[0044] In the figure: 1. Short-cutting machine; 2. Short-fiber cloth; 3. Knife disc;

[0045] 4. Sensing device; 41. Sensing plate; 42. Glass tube; 43. Mercury; 44. Push rod; 45. Sensing tank;

[0046] 5. Driving fan; 51. Mounting plate; 52. Motor; 53. Fan; 54. Casing. DETAILED DESCRIPTION

[0047] See also Figure 1-3 , the present invention provides a technical solution:

[0048] A rotary short-cutting machine for composite differentiated short fibers and a control method thereof, comprising a short-cutting machine 1, a short-cutting fiber cloth 2 and a knife disc 3, wherein the knife disc 3 is fixedly connected to one side of the short-cutting machine 1, and the short-cutting fiber cloth 2 is arranged on the outer side of the knife disc 3, an induction device 4 is fixedly connected to one side of the short-cutting machine 1, and a driving fan 5 is fixedly connected to the inner side of the short-cutting machine 1; the induction device 4 comprises an induction plate 41, an induction groove 45 is opened on the inner side of the induction plate 41, a push rod 44 is arranged at one end of the induction groove 45, mercury 43 is arranged at the other end of the push rod 44, and a glass tube 42 is arranged on the outer side of the mercury 43; the driving fan 45 comprises a mounting plate 51, a motor 52 is fixedly connected to one side of the mounting plate 51, a fan 53 is fixedly connected to one end of the main shaft of the motor 52, and a shell 54 is fixedly connected to one side of the motor 54.

[0049] One end of the glass tube 42 is fixedly connected to one side of the induction plate 41, one end of the push rod 44 is arranged on one side of the glass tube 42, the push rod 44 is in close contact with one end of the mercury 43, and the other end of the push rod 44 is slidably connected to the induction slot 45. One end of the glass tube 42 is 5 mm away from the upper end of the knife disc 3, and the thermal expansion coefficient of the mercury 43 is relatively large, thereby providing high-sensitivity temperature monitoring; one end of the main shaft of the motor 52 passes through the shell 54 and is connected to the center point of the fan 53, and the angle between the fan 53 and the main shaft of the motor 52 is 90°. The motor 52 is arranged between the mounting plate 51 and the shell 54, and the shell 54 and the mounting plate 51 are parallel to each other. Such an arrangement can make the overall structure more reasonable; the induction device 4 with a temperature detection element, a signal conditioning circuit, a microcontroller, an LED display screen for displaying temperature, and a battery module, and the driving fan 5 with a control interface and a temperature threshold and a control algorithm function, such an arrangement can make the overall structure more complete;

[0050] The temperature change of the cutter head 3 will be transmitted to the mercury 43, causing the mercury 43 to expand or contract. V0 is the volume of the mercury 43 at the initial temperature, α is the thermal expansion coefficient of the mercury 43, △T is the temperature change, and the volume change ΔV of the mercury 43 in direct contact with the mercury 43 can be approximately expressed by the following formula:

[0051] ΔV=V0α△T;

[0052] The change in volume of mercury 43 causes a push rod 44 connected to mercury 43 to move, and the movement distance ΔL of the push rod 44 is proportional to the change in volume of mercury 43:

[0053] ΔL=kΔV

[0054] Where k is the proportionality constant;

[0055] The sensing device 4 detects the temperature according to the moving distance of the push rod 44.

[0056] T=T0+cΔL

[0057] in:

[0058] T is the detected temperature;

[0059] T0 is the ambient or initial temperature;

[0060] c is the coefficient that converts the travel distance into temperature change;

[0061] The motor speed N is adjusted according to the detected temperature to control the cooling rate. Assuming that the motor speed 52 is inversely proportional to the temperature, the higher the temperature, the faster the speed to increase cooling:

[0062]

[0063] in:

[0064] N0 is the reference speed, λ is the adjustment coefficient, which determines the sensitivity of temperature change to the speed;

[0065] The relationship between the temperature change of the cutter head 3 and the speed of the motor 52 is calculated by a comprehensive formula as follows:

[0066]

[0067] The parameters in this formula, α, the thermal expansion coefficient of mercury, k, the proportional constant, c, the coefficient for converting the moving distance into temperature change, λ, the adjustment coefficient, V0, the initial volume of mercury, T0, the environment or initial temperature, and N0, the reference speed, all need to be measured and determined according to the actual situation. Through the algorithm, the system can automatically adapt to different environmental conditions and temperature changes, providing more flexible and effective temperature control.

[0068] After the power is turned on, the system is initialized, and the microcontroller starts running. The temperature sensing device 4 monitors the temperature of the target area in real time and transmits the data to the microcontroller; the microcontroller receives the temperature data and compares it with the preset temperature threshold. The microcontroller calculates the required speed of the driving fan 5 based on the comparison result and the built-in control algorithm. The microcontroller outputs a control signal to the motor 52 to adjust the fan speed in response to temperature changes; the fan 53 runs at the adjusted speed to cool or heat the target area to maintain a stable temperature. If the monitored temperature exceeds the safety threshold, the system automatically reduces the speed of the fan 53 or triggers an alarm; the system displays the current temperature and the status of the fan 53 through the user interface and provides real-time feedback; the user can manually set the temperature threshold or adjust the speed of the fan 53 through the control interface; after the user completes the operation, the system can be turned off, at which time the microcontroller stops working and the fan 53 stops running.

[0069] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the methods and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A rotary short-cutting machine for composite differentiated short fibers, comprising a short-cutting machine (1), a short-fiber cloth (2) and a knife disc (3), characterized in that: A knife disc (3) is fixedly connected to one side of the short-cut machine (1), and a short-fiber cloth (2) is arranged outside the knife disc (3). A sensing device (4) is fixedly connected to one side of the short-cut machine (1), and a driving fan (5) is fixedly connected to the inside of the short-cut machine (1); The sensing device (4) comprises a sensing plate (41), a sensing groove (45) is provided inside the sensing plate (41), a push rod (44) is provided at one end of the sensing groove (45), mercury (43) is provided at the other end of the push rod (44), and a glass tube (42) is provided outside the mercury (43); The driving fan (45) comprises a mounting plate (51), one side of the mounting plate (51) is fixedly connected to a motor (52), one end of a main shaft of the motor (52) is fixedly connected to a fan (53), and one side of the motor (54) is fixedly connected to a housing (54).

2. The rotary short-cutting machine for composite differentiated short fibers according to claim 1, characterized in that: One end of the glass tube (42) is fixedly connected to one side of the induction plate (41), one end of the push rod (44) is arranged on one side of the glass tube (42), the push rod (44) is in close contact with one end of the mercury (43), the other end of the push rod (44) is slidably connected to the induction groove (45), and one end of the glass tube (42) is 5 mm away from the upper end of the knife disc (3).

3. The rotary short-cutting machine for composite differentiated short fibers according to claim 1, characterized in that: One end of the main shaft of the motor (52) passes through the outer shell (54) and is connected to the center point of the fan (53); the angle between the fan (53) and the main shaft of the motor (52) is 90°; the motor (52) is arranged between the mounting plate (51) and the outer shell (54); and the outer shell (54) and the mounting plate (51) are parallel to each other.

4. The rotary short-cutting machine for composite differentiated short fibers according to claim 1, characterized in that: The induction device (4) is provided with a temperature detection element, a signal conditioning circuit, a microcontroller, an LED display screen for displaying temperature, and a battery module, and the driving fan (5) is provided with a control interface, a temperature threshold value, and a control algorithm function.

5. The rotary short-cutting machine for composite differentiated short fibers according to claim 1, characterized in that: The temperature change of the blade disc (3) will be transmitted to the mercury (43), causing the mercury (43) to expand or contract. V0 is the volume of the mercury (43) at the initial temperature, α is the thermal expansion coefficient of the mercury (43), ΔT is the temperature change, and in direct contact with the mercury (43), the volume change ΔV of the mercury (43) can be approximately expressed by the following formula: ΔV=V0α△T.

6. The rotary short-cutting machine for composite differentiated short fibers according to claim 1, characterized in that: The volume change of the mercury (43) causes a push rod (44) connected to the mercury (43) to move, and the moving distance ΔL of the push rod (44) is proportional to the volume change of the mercury (43): ΔL=kΔV where k is the proportionality constant.

7. The rotary short-cutting machine for composite differentiated short fibers according to claim 1, characterized in that: The sensing device (4) detects the temperature according to the moving distance of the push rod. T=T0+cΔL in: T is the detected temperature; T0 is the ambient or initial temperature; c is the coefficient that converts the travel distance into temperature change.

8. The rotary short-cutting machine for composite differentiated short fibers according to claim 1, characterized in that: The speed N of the motor (52) is adjusted according to the detected temperature to control the cooling rate. Assuming that the speed of the motor (52) is inversely proportional to the temperature (i.e., the higher the temperature, the faster the speed to increase cooling): in: N0 is the reference speed, and λ is the adjustment coefficient, which determines the sensitivity of the speed to temperature changes.

9. The rotary short-cutting machine for composite differentiated short fibers according to claim 1, characterized in that: The relationship between the temperature change of the cutter disc (3) and the rotation speed of the motor (52) is calculated by a comprehensive formula as follows: The parameters in this formula, α (thermal expansion coefficient of mercury), k (proportional constant), c (coefficient of converting moving distance into temperature change), λ (adjustment coefficient), V0 (initial volume of mercury), T0 (ambient or initial temperature), and N0 (reference speed), all need to be measured and determined based on actual conditions.

10. A control method for a rotary short-cutting machine for composite differentiated short fibers according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Turn on the power, initialize the system, start the microcontroller, and the temperature sensing device (4) monitors the temperature of the target area in real time and transmits the data to the microcontroller; S2: The microcontroller receives the temperature data and compares it with a preset temperature threshold. The microcontroller calculates the required speed of the driving fan (5) based on the comparison result and the built-in control algorithm. The microcontroller outputs a control signal to the motor (52) to adjust the fan speed in response to the temperature change. S3: The fan (53) runs at the adjusted speed to cool or heat the target area to maintain a stable temperature. If the monitored temperature exceeds a safety threshold, the system automatically reduces the speed of the fan (53) or triggers an alarm. S4: The system displays the current temperature and fan (53) status through the user interface to provide real-time feedback; S5: The user can manually set the temperature threshold or adjust the speed of the fan (53) through the control interface; S6: After the user completes the operation, the system can be turned off, at which time the microcontroller stops working and the fan (53) stops running.

Images