Tissue output control method and system based on dry and wet paper machine

Abstract

The invention relates to a paper towel output control method and system based on a dry and wet paper machine. The method comprises the following steps: (1) initializing a paper towel state; (2) generating a control signal; (3) executing tissue output; (4) safety control: detecting the state of the top cover through a magnetic induction switch, and controlling the working state of the water pump. The tissue output control method and system have the advantages that the tissue output control method and system are efficient, safe and user-friendly. Factors in multiple aspects such as accuracy, flexibility, safety, energy conservation and environmental protection are considered, so that the requirement of a user on high-quality tissue output is met; due to the accurate control of the length of the tissues, the waste of the tissues is reduced, and the utilization efficiency of resources is improved.

Description

Technical Field

[0001] The invention relates to a paper towel output control method based on a dry and wet paper machine and a system thereof, belonging to the field of paper towel output control. Background Art

[0002] In modern homes and public facilities, the use of wet toilet paper is becoming more and more common, providing users with a more hygienic and convenient way to clean. However, existing wet and dry toilet paper machines have technical deficiencies in many aspects, which limit the improvement of user experience and the improvement of equipment functions.

[0003] First, users often encounter the problem of too long or too short paper towel output during use, which not only wastes resources but also fails to meet users' needs for paper towels of a specific length. The inaccuracy of paper towel length is often caused by the lack of effective sensors and control algorithms.

[0004] Secondly, paper towel status detection is another technical shortcoming of existing wet and dry paper machines. In actual use, paper towels may experience abnormal states such as paper jams and offsets due to various reasons (such as frequent use and uneven paper towel quality). Existing detection mechanisms are often unable to accurately detect these states in real time, resulting in the inability of the device to adjust or remind users in a timely manner, affecting the stability and reliability of the device.

[0005] Furthermore, in order to achieve precise water spray control of paper towels, the wet and dry paper machines currently on the market are all designed with a cutter structure, but the design of the cutter structure has the following disadvantages:

[0006] Cost issue: The current wet and dry paper machines are equipped with a cutter structure, which undoubtedly increases the overall production cost. The addition of a cutter not only involves additional purchase costs, but also includes maintenance and replacement costs, which is a factor that cannot be ignored in a cost-sensitive market.

[0007] Safety issues: The existence of the cutter structure brings certain safety hazards, especially for families with children, such sharp parts may cause accidental injuries. Therefore, from the perspective of family safety, the design of the cutter structure is not suitable for home use.

[0008] Adaptability issues: The cutter structure has certain requirements for the thickness of the paper towel. When the paper towel is too thick, the cutter may not be able to cut it at one time. This not only affects the cutting quality of the paper towel, but may also cause failure of the cutter structure, increasing the maintenance frequency and maintenance cost of the machine.

[0009] In summary, the existing wet and dry paper machines have obvious deficiencies in paper towel length control, paper towel state detection and cutter structure. These deficiencies not only affect the user experience, but also limit the further development and optimization of the functions of wet and dry paper machines. Summary of the invention

[0010] In order to overcome the defects of the prior art, the present invention provides a paper towel output control method and system based on a dry and wet paper machine. The technical solution of the present invention is:

[0011] A paper towel output control method based on a dry and wet paper machine comprises the following steps:

[0012] (1) Initialization of paper towel status: according to the initial position of the paper towel, three states of the paper towel are determined, and an initialization operation is performed; in the step of initializing the paper towel status, the three states of the paper towel include: the first state: the bottom end of the paper towel is above the first sensor, and the paper towel roll shaft runs in the positive direction to the first sensor position and stops; the second state: the bottom end of the paper towel is between the first sensor and the second sensor, and the paper towel roll shaft runs in the reverse direction to the first sensor position and stops; the third state: the bottom end of the paper towel is below the second sensor, and the paper towel is not initialized;

[0013] (2) Control signal generation: generating a control signal based on user input and preset parameters to control the output length of the paper towel;

[0014] (3) Paper towel output execution: driving the paper towel conveying mechanism according to the control signal to realize the output of paper towels;

[0015] (4) Safety control: The state of the top cover is detected by a magnetic induction switch to control the working state of the water pump; the steps of the safety control include: a permanent magnet is arranged on the top cover of the paper towel machine body; when the top cover is opened, the humidification button is pressed for a long time, and the water pump operates alone to fill the heating tube with water; when the cover is opened, the magnetic induction switch detects a signal, and when the button is accidentally touched, the water pump and the paper towel conveying mechanism will not operate.

[0016] The method further comprises a step of calculating the length of the paper towel, which is located between the paper towel state initialization step and the control signal generation step, and calculates the actual length of the paper towel through a grating counting sensor.

[0017] The steps of initializing the paper towel status are specifically as follows:

[0018] 1.1 Touch the dry paper towel output button, the paper towel reel rotates in the positive direction, and the paper towel is transported 150mm; at this time, the bottom of the paper towel is under the reflective switch, and the reflective switch and the reflective switch detect the paper towel signal at the same time. When the user tears off the paper towel, the paper towel returns to the first state or the second state. After 3-5 seconds, the paper towel is initialized and waits for the next cycle;

[0019] 1.2 After initialization is completed, touch the wet tissue output button, the tissue reel rotates 3 circles in the positive direction, the tissue is transported 150mm, and the corresponding water pump also runs to spray water on the tissue; at this time, the bottom of the tissue is under the reflection switch, and the reflection switch and the reflection switch detect the tissue signal at the same time. After the user tears off the tissue, the tissue returns to the first state or the second state. After 3-5 seconds, the tissue is initialized and waits for the next cycle;

[0020] The steps of calculating the length of the paper towel include:

[0021] 2.1 The diameter of the roller for conveying paper towels is 16mm. The circumference of the roller for conveying paper towels is calculated to be 50mm. The number of grating grids in one circle is 19 grids, and the length of paper towels represented by each grid is 2.63mm;

[0022] Apply the formula L = n × g, where L is the length of the paper towel, n is the number of grating grids, and g is the length of each grid;

[0023] 2.2 During the initialization process, the paper towel runs 5 grids of 13mm and reaches the initial position; after the button operation, the paper towel machine runs 57 grids of 150mm by default. After the user tears off the paper towel, the paper towel machine roller rotates back 8 grids of 21mm. The length of each section of the paper towel is calculated to be 150mm-2.63×8=129mm.

[0024] The step of generating the control signal comprises:

[0025] 3.1 Receive instructions input by the user through keys;

[0026] 3.2 Generate control signals according to instructions and preset parameters to control the running direction and length of the paper towel roll;

[0027] 3.3 When humidification is required, input the command to control the water pump to spray water on the paper towel.

[0028] The steps of outputting the paper towels include:

[0029] 4.1 Drive the paper towel conveying mechanism according to the control signal to realize the forward or reverse conveyance of the paper towel; 4.2 Ensure that the paper towel is output according to the preset length and mode;

[0030] 4.3 After the paper towel is output, the next initialization is performed according to the set time delay.

[0031] It also includes the optimization algorithm formula for paper towel output, specifically:

[0032] Set A=f(L,S,P), where A represents the control signal, L represents the length of the paper towel, S represents the sensor signal, and P represents the preset parameters to optimize the accuracy and efficiency of the paper towel output.

[0033] A system for implementing a paper towel output control method based on a dry and wet paper machine, comprising:

[0034] The paper towel state initialization module is used to determine the three states of the paper towel according to the initial position of the paper towel and perform initialization operations;

[0035] A paper towel length calculation module is used to calculate the actual length of the paper towel through a grating counting sensor;

[0036] A control signal generating module, used to generate a control signal according to user input and preset parameters to control the output length of the paper towel;

[0037] A paper towel output execution module is used to drive the paper towel conveying mechanism according to the control signal to realize the output of paper towels;

[0038] The safety control module is used to detect the status of the top cover through the magnetic induction switch and control the working status of the water pump.

[0039] The advantages of the present invention are:

[0040] Accurate paper towel state detection: By determining the three initial states of the paper towel and performing the corresponding initialization operations, the starting position of the paper towel output is ensured to be accurate. This accurate state detection helps to improve the accuracy of subsequent paper towel output.

[0041] Real-time paper towel length calculation: The grating counting sensor is used to calculate the actual length of the paper towel in real time, making the control of the paper towel output length more precise. This method reduces paper towel waste and meets the user's demand for specific length paper towels.

[0042] Flexible control signal generation: Generate control signals based on user input and preset parameters, making the control of paper towel output length more flexible and personalized. Users can adjust the paper towel output length according to their needs, improving the user experience.

[0043] Reliable paper towel output execution: The control signal drives the paper towel conveying mechanism to ensure that the paper towel is output according to the preset length and pattern. This reliable execution mechanism ensures the stability of the equipment and the consistency of output.

[0044] Enhanced safety control: The magnetic induction switch detects the status of the top cover and controls the working status of the water pump, which increases the safety of the equipment. For example, when the top cover is open, it can prevent the water pump and motor from being misoperated, avoiding potential safety risks.

[0045] Efficient resource utilization: Due to the precise control of paper towel length, paper towel waste is reduced and resource utilization efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1It is a schematic diagram of the system structure of the present invention. DETAILED DESCRIPTION

[0047] The present invention will be further described below in conjunction with specific embodiments, and the advantages and features of the present invention will become clearer as the description proceeds. However, these embodiments are exemplary only and do not constitute any limitation to the scope of the present invention. It should be understood by those skilled in the art that the details and forms of the technical solution of the present invention may be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements all fall within the scope of protection of the present invention.

[0048] The present invention relates to a paper towel output control method based on a dry and wet paper machine, comprising the following steps:

[0049] (1) Initialization of paper towel status: according to the initial position of the paper towel, three states of the paper towel are determined, and an initialization operation is performed; in the step of initializing the paper towel status, the three states of the paper towel include: a first state: the bottom end of the paper towel is above the first sensor (such as the anti-beam switch), and the paper towel reel rotates in the positive direction to the position of the first sensor (such as the anti-beam switch) and stops; a second state: the bottom end of the paper towel is between the first sensor and the second sensor (such as between the anti-beam switch and the reflective switch), and the paper towel reel rotates in the reverse direction to the position of the first sensor (such as the anti-beam switch) and stops; a third state: the bottom end of the paper towel is below the second sensor (such as the reflective switch), and the paper towel is not initialized;

[0050] (2) Control signal generation: generating a control signal based on user input and preset parameters to control the output length of the paper towel;

[0051] (3) Paper towel output execution: driving the paper towel conveying mechanism according to the control signal to realize the output of paper towels;

[0052] (4) Safety control: The status of the top cover is detected by the magnetic induction switch to control the working status of the water pump.

[0053] Based on the configuration of the above steps, the present invention achieves the following advantages:

[0054] (1) Initialize the paper towel status to ensure that the starting position of the paper towel output is accurate and improve the accuracy of subsequent paper towel output; through precise status detection, ensure the stability of the equipment and the consistency of output.

[0055] (2) Control signal generation provides flexible control of paper towel output length to meet the personalized needs of users. Users can adjust the paper towel output length according to their own needs, which improves the user experience.

[0056] (3) Paper towel output execution, ensuring that the paper towel is output according to the preset length and mode, improving the reliability of the equipment, and the reliable execution mechanism ensures the stability of the equipment and the consistency of output. (4) Safety control, increasing the safety of the equipment and preventing misoperation; when the top cover is opened, it can prevent misoperation of the water pump and motor, avoiding potential safety risks.

[0057] In the step of initializing the paper towel state, the three states of the paper towel include:

[0058] The first state: the bottom of the paper towel is above the shooting switch, and the paper towel reel runs in the positive direction to the first sensor position and stops;

[0059] The second state: the bottom end of the paper towel is between the first sensor and the second sensor, and the paper towel roll rotates in the opposite direction to the position of the first sensor and stops;

[0060] The third state: the bottom of the paper towel is below the reflective switch and the paper towel is not initialized.

[0061] Among them, the first state: the bottom end of the paper towel is above the beam switch, precise starting position control: by ensuring that the bottom end of the paper towel is above the beam switch, the starting position of the paper towel can be precisely controlled, providing an accurate reference for subsequent paper towel output.

[0062] Simplified initialization process: The paper towel roll runs in the positive direction until it stops at the reverse switch position. This process is simple and direct, reducing the complexity of the initialization process.

[0063] The second state: the bottom end of the paper towel is between the opposite switch and the reflective switch. When the bottom end of the paper towel is between the opposite switch and the reflective switch, it runs in the opposite direction to the opposite switch position and stops, thus realizing the function of automatically correcting the position of the paper towel and ensuring the consistency of the paper towel output.

[0064] Enhanced adaptability: This state processing method enhances the adaptability of the equipment to paper towels of different lengths, enabling it to handle a variety of paper towel states.

[0065] The third state: the bottom of the paper towel is below the reflective switch. In this state, the paper towel is not initialized, which shows that the device can intelligently judge the state of the paper towel and avoid useless operations when not needed, thereby saving energy and extending the life of the equipment.

[0066] Prevents incorrect initialization: By not performing initialization, incorrect tissue position adjustments under inappropriate conditions are avoided, reducing the risk of equipment failure.

[0067] By setting this step, the reliability and stability of the device are improved as a whole, and by accurately controlling the initial state of the paper towel, the reliability and stability of the device under various conditions are ensured. The steps of initializing the paper towel state are specifically as follows:

[0068] 1.1 Touch the dry paper towel output button, the paper towel reel rotates in the positive direction, and the paper towel is transported 150mm; at this time, the bottom of the paper towel is under the reflective switch, and the reflective switch and the reflective switch detect the paper towel signal at the same time. When the user tears off the paper towel, the paper towel returns to the first state or the second state. After 3-5 seconds, the paper towel is initialized and waits for the next cycle;

[0069] 1.2 After initialization is completed, touch the wet tissue output button, the tissue reel rotates 3 circles in the positive direction, the tissue is transported 150mm, and the corresponding water pump also runs to spray water on the tissue; at this time, the bottom of the tissue is under the reflection switch, and the reflection switch and the reflection switch detect the tissue signal at the same time. After the user tears off the tissue, the tissue returns to the first state or the second state. After 3-5 seconds, the tissue is initialized and waits for the next cycle;

[0070] The following are the advantages of the described tissue state initialization step:

[0071] Precise paper towel position control: By touching the dry paper towel output button and the wet paper towel output button, the paper towel reel rotates in the positive direction, and the paper towel is transported 150mm, ensuring that the bottom of the paper towel is below the reflective switch, and the reflective switch and the reflective switch detect the paper towel signal at the same time. This precise position control ensures the consistency and accuracy of paper towel output.

[0072] Automatic state detection and initialization: When the user tears off the paper towel, it automatically returns to the first state or the second state and initializes after 3-5 seconds, waiting for the next cycle. This automated process reduces the need for user intervention and provides a smoother and more seamless user experience.

[0073] Enhanced adaptability and flexibility: After initialization, touch button 2, the paper towel reel rotates 3 times in the positive direction, the paper towel is transported 150mm, and the corresponding water pump also runs to spray water on the paper towel. This flexibility allows the device to be adjusted according to different user needs, enhancing the adaptability of the device.

[0074] Energy saving and intelligent judgment: The magnetic induction switch detects the status of the top cover and controls the working status of the water pump, which increases the safety of the equipment and prevents misoperation. This intelligent judgment and energy saving measure helps reduce the energy consumption of the equipment and extend its service life.

[0075] Improve equipment reliability and stability: By precisely controlling the initial state of the tissue, the reliability and stability of the equipment under various conditions are ensured. This control method provides an efficient, safe and user-friendly tissue output control solution.

[0076] The method also includes a step of calculating the length of the paper towel to achieve accurate control of the length of the paper towel and reduce waste of the paper towel.

[0077] The actual length of the paper towel is calculated by a grating counting sensor. The grating sensor is not affected by electromagnetic fields and can achieve long-distance low-loss transmission. The accurate calculation of the paper towel length makes the paper towel output more in line with user needs and improves the efficiency of resource utilization.

[0078] The steps of calculating the length of the paper towel include:

[0079] 2.1 The diameter of the roller for conveying paper towels is 16mm. The circumference of the roller for conveying paper towels is calculated to be 50mm. The number of grating grids in one circle is 19 grids, and the length of paper towels represented by each grid is 2.63mm;

[0080] Apply the formula L = n × g, where L is the length of the paper towel, n is the number of grating grids, and g is the length of each grid;

[0081] 2.2 During the initialization process, the paper towel runs 5 grids of 13mm and reaches the initial position; after the button operation, the paper towel machine runs 57 grids of 150mm by default. After the user tears off the paper towel, the paper towel machine roller rotates back 8 grids of 21mm. The length of each section of the paper towel is calculated to be 150mm-2.63×8=129mm.

[0082] The advantages of the paper towel length calculation step are mainly reflected in the following aspects:

[0083] By calculating the roller diameter and the number of grating grids for conveying paper towels, the following advantages are achieved:

[0084] High precision: By accurately measuring the roller diameter and calculating the circumference, combined with the number of grids of the grating sensor, the length of the paper towel represented by each grid can be determined very accurately.

[0085] Repeatability: This method provides a standardized calculation process that produces consistent results each time, ensuring consistent tissue length.

[0086] Adaptability: This method is applicable to rollers of different diameters and can be adapted to different devices by simply adjusting the calculation parameters.

[0087] The initialization process and the dynamic adjustment of the paper towel length achieve the following advantages:

[0088] Dynamic adjustment: During the initialization process, the paper towel runs 5 raster grids (13mm) to reach the initial position. This dynamic adjustment ensures that the starting position of the paper towel is accurate.

[0089] User customization: After pressing the button, the paper towel dispenser runs 57 grids (150mm) by default. Users can adjust the paper towel output length as needed, providing a personalized usage experience.

[0090] Intelligent correction: After the user tears off the tissue, the tissue machine roller rotates back 8 grids (21mm) to automatically correct the length of the tissue to ensure the accuracy of the next output.

[0091] Accurate calculation: Through the calculation formula L=150mm-2.63×8=129mm, the length of each section of the paper towel can be accurately calculated, reducing errors.

[0092] Overall advantages:

[0093] Improve resource utilization efficiency: By accurately calculating the length of paper towels, paper towel waste is reduced and resource utilization efficiency is improved.

[0094] Enhanced user experience: Users can adjust the paper towel output length according to their needs, which improves the convenience and satisfaction of use.

[0095] Reduce maintenance costs: Accurate length control reduces equipment failure rate and reduces maintenance costs.

[0096] Environmentally friendly: By reducing paper towel waste, it complies with the concept of environmental protection and sustainable development.

[0097] These advantages together ensure the efficiency and accuracy of the paper towel length calculation step, and provide a solid foundation for the entire paper towel output control method.

[0098] The step of generating the control signal comprises:

[0099] 3.1 Receive instructions input by the user through keys;

[0100] 3.2 Generate control signals according to instructions and preset parameters to control the running direction and length of the paper towel roll;

[0101] 3.3 When humidification is required, input the command to control the water pump to spray water on the paper towel.

[0102] Based on the settings in the above steps, the following advantages are achieved:

[0103] Intelligence: The entire control signal generation process reflects the characteristics of intelligent control and improves the intelligence level of the system.

[0104] Responsiveness: Ability to respond quickly to user instructions, improving user satisfaction and equipment efficiency.

[0105] Energy saving and high efficiency: By precisely controlling the operation of the paper towel reel and the humidification and heating process, energy waste is reduced and the energy-saving efficiency of the system is improved.

[0106] Reliability: Accurate control signal generation ensures stable operation of the equipment, reduces failure rate and improves system reliability.

[0107] The steps of outputting the paper towels include:

[0108] 4.1 Drive the paper towel conveying mechanism according to the control signal to realize the forward or reverse conveyance of the paper towel; 4.2 Ensure that the paper towel is output according to the preset length and mode;

[0109] 4.3 After the paper towel is output, the next initialization is performed according to the set time delay.

[0110] The advantages of the paper towel output execution step are as follows:

[0111] 4.1 The paper towel conveying mechanism is driven according to the control signal, achieving the following advantages:

[0112] Precise Execution: The control signal directly drives the tissue transport mechanism, ensuring that the forward or reverse transport of tissues is carried out as expected.

[0113] Flexibility: The delivery direction of paper towels can be flexibly adjusted according to the control signal to adapt to different usage scenarios.

[0114] Automated operation: reduces the need for manual operation and improves the automation level of paper towel output.

[0115] 4.2 Ensure that the paper towel is output according to the preset length and mode, achieving the following advantages:

[0116] Consistency: Ensure that the length and pattern of each paper towel output meets the preset parameters to ensure output consistency.

[0117] Quality Control: The quality of tissue output is improved by precisely controlling the tissue output length and pattern.

[0118] Reduce waste: Avoid unnecessary waste of paper towels and improve resource utilization efficiency. 4.3 After the paper towels are output, the next initialization is performed according to the set time delay, achieving the following advantages:

[0119] Cycle efficiency: The set time delay allows the device to quickly initialize after the paper towel is output and prepare for the next output, improving overall work efficiency.

[0120] Stability: By initializing after each output, the stability of the device status is ensured, reducing the probability of failure.

[0121] The entire paper towel output execution process is efficient and rapid, meeting the user's demand for quick response; ensuring the accuracy of paper towel output meets the user's expectations for high-quality output; improving system reliability and reducing maintenance costs through precise control and automated operation; and embodying the energy-saving and environmentally friendly design concept by reducing paper towel waste and optimizing energy use.

[0122] The steps of the security control include:

[0123] 5.1 There is a permanent magnet on the top cover of the paper towel machine body, and there is a magnetic induction switch on the paper towel machine body. When the top cover is opened, long press the humidification button for usually 3-5 seconds, and the water pump will run alone to fill the heating tube with water;

[0124] 5.2 When the lid is opened, the magnetic induction switch detects the signal. When the button is touched by mistake, the water pump and paper towel conveying mechanism will not operate.

[0125] Based on the settings in the above steps, the following advantages are achieved:

[0126] Improve safety: Through intelligent detection and protection against misoperation, the safety of equipment is significantly improved and the occurrence of accidents is reduced.

[0127] Enhanced user experience: The design of security control steps takes into account the user's actual operating habits and provides a more user-friendly user experience.

[0128] Equipment protection: By preventing misoperation, the equipment is protected from unnecessary wear and damage, extending the service life of the equipment.

[0129] It also includes the optimization algorithm formula for paper towel output, specifically:

[0130] Set A=f(L,S,P), where A represents the control signal, L represents the length of the paper towel, S represents the sensor signal, and P represents the preset parameters to optimize the accuracy and efficiency of the paper towel output.

[0131] The algorithm formula realizes precise control of paper towel output, ensuring the accuracy and consistency of paper towel length; it allows dynamic adjustment of control signals according to sensor signals and preset parameters, improving the flexibility and adaptability of the system.

[0132] The present invention also relates to a system for realizing a paper towel output control method based on a dry and wet paper machine, comprising:

[0133] The paper towel state initialization module 1 is used to determine the three states of the paper towel according to the initial position of the paper towel and perform initialization operations;

[0134] The paper towel length calculation module 2 is used to calculate the actual length of the paper towel through the grating counting sensor and perform calculations;

[0135] A control signal generating module 3, used to generate a control signal according to user input and preset parameters to control the output length of the paper towel;

[0136] The paper towel output execution module 4 is used to drive the paper towel conveying mechanism according to the control signal to realize the output of the paper towel;

[0137] The safety control module 5 is used to detect the state of the top cover through the magnetic induction switch and control the working state of the water pump.

[0138] The present invention realizes the paper towel output control method of the dry and wet paper machine through an integrated control system to ensure the accuracy, safety and efficiency of paper towel output. The working process is as follows:

[0139] Paper towel state initialization: The system first detects the initial position of the paper towel, determines whether the paper towel is in one of the three predefined states, and performs corresponding initialization operations to ensure that the starting position of the paper towel is accurate.

[0140] Calculation of paper towel length: Use the grating counting sensor to calculate the actual length of the paper towel. Determine the length of the paper towel represented by each grid by measuring the roller diameter, calculating the circumference and the number of grating grids, and apply the formula L=n×g for calculation.

[0141] Control signal generation: The system receives instructions input by the user and generates control signals based on preset parameters to control the direction and length of the paper towel roll, as well as the operation of the water pump and heating tube when humidification and heating are required.

[0142] Paper towel output execution: Drive the paper towel conveying mechanism according to the control signal to realize the forward or reverse conveyance of the paper towel and ensure that the paper towel is output according to the preset length and mode. After the output is completed, the system will perform the next initialization according to the set time delay.

[0143] Safety control: The magnetic induction switch detects the status of the top cover, controls the working status of the water pump, prevents misoperation, and increases the safety of the equipment.

[0144] Application of optimization algorithm: The system sets the optimization algorithm formula A=f(L,S,P), where A represents the control signal, L represents the length of the paper towel, S represents the sensor signal, and P represents the preset parameters to optimize the accuracy and efficiency of the paper towel output.

[0145] Through the coordinated work of the above steps, the present invention realizes an efficient, safe and user-friendly paper towel output control method and system. The design takes into account multiple factors such as accuracy, flexibility, safety, energy saving and environmental protection to meet the user's demand for high-quality paper towel output.

[0146] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A paper towel output control method based on a dry and wet paper machine, characterized in that: The following steps are involved: (1) Initialization of paper towel status: according to the initial position of the paper towel, three states of the paper towel are determined, and an initialization operation is performed; in the step of initializing the paper towel status, the three states of the paper towel include: the first state: the bottom end of the paper towel is above the first sensor, and the paper towel roll shaft runs in the positive direction to the first sensor position and stops; the second state: the bottom end of the paper towel is between the first sensor and the second sensor, and the paper towel roll shaft runs in the reverse direction to the first sensor position and stops; the third state: the bottom end of the paper towel is below the second sensor, and the paper towel is not initialized; (2) Control signal generation: Generate a control signal based on user input and preset parameters to control the output length of the paper towel; (3) Paper towel output execution: drive the paper towel conveying mechanism according to the control signal to realize the output of paper towels; (4) Safety control: The state of the top cover is detected by a magnetic induction switch to control the working state of the water pump; the steps of the safety control include: a permanent magnet is arranged on the top cover of the paper towel machine body, when the cover is opened, the magnetic induction switch detects a signal, and when the button is accidentally touched, the water pump and the paper towel conveying mechanism will not operate.

2. The paper towel output control method based on a dry and wet paper machine according to claim 1, characterized in that: The method further comprises a step of calculating the length of the paper towel, which is located between the paper towel state initialization step and the control signal generation step, and calculates the actual length of the paper towel through a grating counting sensor.

3. The paper towel output control method based on a wet and dry paper machine according to claim 2, characterized in that: The steps of initializing the paper towel status are specifically as follows: 1.1 Touch the dry paper towel output button, the paper towel reel rotates in the positive direction, and the paper towel is transported 150mm; at this time, the bottom of the paper towel is under the reflective switch, and the reflective switch and the reflective switch detect the paper towel signal at the same time. When the user tears off the paper towel, the paper towel returns to the first state or the second state. After 3-5 seconds, the paper towel is initialized and waits for the next cycle; 1.2 After initialization is completed, touch the wet tissue output button, the tissue reel rotates 3 circles in the positive direction, the tissue is transported 150mm, and the corresponding water pump also runs to spray water on the tissue; at this time, the bottom of the tissue is under the reflection switch, and the reflection switch and the reflection switch detect the tissue signal at the same time. After the user tears off the tissue, the tissue returns to the first state or the second state. After 3-5 seconds, the tissue is initialized and waits for the next cycle.

4. The paper towel output control method based on a dry and wet paper machine according to claim 3, characterized in that: The steps of calculating the length of the paper towel include: 2.1 The diameter of the roller for conveying paper towels is 16mm. The circumference of the roller for conveying paper towels is calculated to be 50mm. The number of grating grids in one circle is 19 grids, and the length of paper towels represented by each grid is 2.63mm; Apply the formula L = n × g, where L is the length of the paper towel, n is the number of grids in the grating, and g is the length of each grid; 2.2 During the initialization process, the paper towel runs 5 grids (13 mm) and reaches the initial position. After the button is pressed, the paper towel dispenser runs 57 grids (150 mm) by default. After the user tears off the paper towel, the roller of the paper towel dispenser rotates back 8 grids (21 mm). The length of each section of the paper towel is calculated to be 150 mm − 2.63 × 8 = 129 mm.

5. The paper towel output control method based on a dry and wet paper machine according to claim 3, characterized in that: The step of generating the control signal comprises: 3.1 Receive instructions input by the user through keys; 3.2 Generate control signals according to instructions and preset parameters to control the running direction and length of the paper towel roll; 3.3 When humidification is required, input the command to control the water pump to spray water on the paper towel.

6. The paper towel output control method based on a wet and dry paper machine according to claim 1, characterized in that: The steps of outputting the paper towels include: 4.1 Drive the paper towel conveying mechanism according to the control signal to realize the forward or reverse conveyance of the paper towel; 4.2 Ensure that the paper towels are output according to the preset length and mode; 4.3 After the paper towel is output, the next initialization is performed according to the set time delay.

7. The paper towel output control method based on a dry and wet paper machine according to any one of claims 1 to 6, characterized in that: It also includes the optimization algorithm formula for paper towel output, specifically: Set A=f(L,S,P), where A represents the control signal, L represents the length of the paper towel, S represents the sensor signal, and P represents the preset parameters to optimize the accuracy and efficiency of the paper towel output.

8. A system for implementing the paper towel output control method based on a dry and wet paper machine according to any one of claims 1 to 7, characterized in that: include The paper towel state initialization module is used to determine the three states of the paper towel according to the initial position of the paper towel and perform initialization operations; A paper towel length calculation module is used to calculate the actual length of the paper towel through a grating counting sensor; A control signal generating module, used to generate a control signal according to user input and preset parameters to control the output length of the paper towel; A paper towel output execution module is used to drive the paper towel conveying mechanism according to the control signal to realize the output of paper towels; The safety control module is used to detect the status of the top cover through the magnetic induction switch and control the working status of the water pump.

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