Automatic feeding device of rice noodle machine

Abstract

The present application relates to the technical field of automatic control, and discloses an automatic feeding device for a rice noodle machine. The automatic feeding device of the rice noodle machine includes a water tank, a water depth detection component, a water level control component, an oil brushing component and a feeding component. The water tank is used to contain water flow so that the steaming plate can float and move along the direction of the water flow, the water depth detection component is used to obtain the water depth information at the preset depth of the water tank, the water level control component is used to control the water inlet speed and water outlet speed of the water tank based on the water depth information, the oil brushing component is used to brush the steaming plate in the water tank with oil, and the feeding component is used to spray a certain amount of rice noodle raw materials onto the steaming plate. The automatic feeding device of the rice noodle machine has the advantages of ensuring uniform distribution of the oil film by accurately adjusting the water depth in the water tank, combined with the pressing force and rotation effect of the brush hair. The dynamic control of the water level in the water tank avoids the problem of too much or too little oil, thereby reducing the cost of oil while ensuring the taste and integrity of the rice noodle.

Description

Technical Field

[0001] The present application relates to the technical field of automatic control, and in particular to an automatic feeding device for a rice noodle making machine. Background Art

[0002] The working principle of existing rice noodle making machines usually includes multiple automation modules, such as feeding module, steaming module, oiling module and tray removal module. In the automatic feeding process, the equipment will spray the liquid rice noodle raw materials evenly onto the surface of the steaming tray through the nozzle, and then form the rice noodle through steaming.

[0003] In order to prevent the rice noodle skin from sticking to the steaming plate during the steaming process, the existing rice noodle skin machine generally has an oiling step before automatic loading. The oiling step forms a uniform oil film on the surface of the steaming plate to play an isolating role, so that the rice noodle skin can be easily separated from the steaming plate after steaming, while reducing the complexity of subsequent cleaning.

[0004] In the prior art, the water depth in the water tank fluctuates due to the entry and exit of the steaming plate, and the water replenishment and drainage speeds are unstable, resulting in changes in water depth that have an adverse effect on the oil brushing effect and the coordination of the feeding work. When the water depth is high, the height of the steaming plate increases accordingly, and the pressure of the brush bristles on the steaming plate increases, resulting in an excessively thick oil film, which may affect the taste of the rice noodle skin and increase the cost of raw materials; conversely, when the water depth is low, the height of the steaming plate decreases, and the pressure of the brush bristles is insufficient, resulting in an uneven oil film or insufficient coverage, increasing the risk of rice noodle skin sticking to the steaming plate. The impact of this water depth fluctuation not only reduces the efficiency of oil brushing, but may also lead to unstable feeding quality, thereby affecting the operation effect of the entire rice noodle skin production line. Summary of the invention

[0005] In order to effectively control the influence of water depth changes on the feeding operation of a rice noodle making machine, the present application provides an automatic feeding device for a rice noodle making machine.

[0006] The present application provides an automatic feeding device for a rice noodle machine, which adopts the following technical solution:

[0007] An automatic feeding device for a rice noodle machine, comprising:

[0008] A water tank, used to contain water flow so that the steaming plate can float and move along the direction of the water flow;

[0009] A water depth detection component is arranged at a preset depth of the inner wall of the water tank, and is used to obtain water depth information at the preset depth of the water tank;

[0010] A water level control component is provided in the water tank and is used to control the water inlet speed and water outlet speed of the water tank based on the water depth information;

[0011] An oil brush assembly, comprising a frame and an oil brush mounted on the frame and arranged above the water tank, wherein the oil brush can move toward the water tank to a specified height and rotate or move away from the water tank;

[0012] The feeding assembly comprises a frame and a nozzle installed on the frame, arranged above a water tank and aimed at the water tank, wherein the nozzle is used for spraying a quantitative amount of rice noodle raw materials.

[0013] Optionally, the water level control assembly includes a water inlet valve, a water outlet valve, a water inlet pump and a flow rate detector, and the flow rate detector is installed in the water tank.

[0014] Optionally, the water depth detection component includes a protective shell, a detection probe arranged inside the protective shell, and a vibration generator. The protective shell is columnar, and a liquid inlet channel is opened on the bottom surface of the protective shell. The liquid inlet channel is used for external fluid to enter and contact the detection probe inside the protective shell.

[0015] Optionally, the vibration generator is a piezoelectric ceramic, the vibration generator is installed in a protective shell, the characteristic direction of the piezoelectric ceramic is set along the axial direction of the protective shell, and the vibration direction of the inverse piezoelectric effect of the vibration generator is set as the characteristic direction of the vibration generator.

[0016] Optionally, a plurality of ridges are provided on the protective shell along the axial direction, and an inclined surface and a vertical surface perpendicular to the surface of the protective shell are provided on the ridges, and the inclined surface of each ridge is inclined along the same circumferential direction of the protective shell.

[0017] Optionally, the cross-section of the protective shell is circular and gradually becomes thicker from both ends to the middle.

[0018] Optionally, the water depth detection component further includes a conductive slip ring, the protective shell is rotatably connected to the cable via the conductive slip ring, the cable is connected to the conductive slip ring, and the conductive slip ring is electrically connected to the vibration generator and the detection probe.

[0019] Optionally, the water depth detection component also includes a gyroscope, which is arranged in the protective shell. The gyroscope is used to measure the rotation angle of the protective shell. The host obtains the rotation angle information to calculate the current rotation speed. The host issues a cleaning instruction based on the relative size of the rotation speed and a preset rotation speed lower limit threshold. The vibration generator generates ultrasonic vibration based on the cleaning instruction.

[0020] Optionally, the working steps of the water level control component include:

[0021] S1. Obtain the current water depth information and real-time water flow speed information, and read the preset water level upper and lower thresholds;

[0022] S2. Obtain the current speed of the water depth detector, and obtain the water flow velocity corresponding to the current speed of the water depth detector by looking up the table, and issue a cleaning instruction based on the relationship between the water flow velocity corresponding to the current speed and the water flow velocity;

[0023] S3. When the current water level is greater than the upper water level threshold, reduce the water inlet speed until the water level returns to between the upper water level threshold and the lower water level threshold;

[0024] S4. When the current water level is lower than the lower water level threshold, increase the water inlet speed until the water level returns to the upper water level threshold and the lower water level threshold.

[0025] Optionally, S2 includes the following sub-steps:

[0026] S21. Obtain gyroscope information and calculate the current rotation speed of the water depth detection component;

[0027] S22. Obtain the water flow velocity corresponding to the current speed of the water depth detector by looking up the table;

[0028] S23. Determine whether the difference between the current rotation speed and the real-time water flow speed is within the error range. If it is outside the error range, send a cleaning instruction to the vibration generator so that the vibration generator emits ultrasonic vibrations;

[0029] S24. After a preset time, the gyroscope information is obtained again, the current rotation speed of the water depth detection component is calculated, and the water flow speed corresponding to the current rotation speed of the water depth detector is obtained by looking up the table;

[0030] S25. Determine whether the difference between the current rotation speed and the real-time water flow speed is within the error range. If not, an alarm is triggered. If yes, it is determined that the water depth detector has resumed normal working state.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The present invention evenly applies an oil film on the surface of the steaming plate through an oil brushing component before loading, effectively preventing the rice noodle skin from sticking to the steaming plate during the steaming process. The existence of the oil film not only reduces the friction between the rice noodle skin and the steaming plate, ensuring that the rice noodle skin can be easily separated from the steaming plate, but also reduces the cleaning steps and improves production efficiency.

[0033] 2. Through the precise adjustment of the water depth in the water tank, combined with the pressure and rotation effect of the brush bristles, the oil film is evenly distributed. The dynamic control of the water level in the water tank avoids the problem of too much or too little oil, thereby reducing the oil cost while ensuring the taste and integrity of the vermicelli. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the working status of the automatic feeding device of the rice noodle machine in a certain embodiment of the present application.

[0035] Figure 2 It is a schematic diagram of the non-working state of the automatic feeding device of the rice noodle machine in a certain embodiment of the present application.

[0036] Figure 3 It is a side view of a water depth detection component in a certain embodiment of the present application.

[0037] Figure 4 It is a cross-sectional schematic diagram of a water depth detection component in a certain embodiment of the present application.

[0038] Figure numerals: 1, frame; 2, water tank; 3, steaming plate; 4, oil brush; 5, nozzle; 6, water depth detection component; 7, cable; 11, protective shell; 12, conductive slip ring; 13, detection probe; 101, ridge; 102, vibration generator; 103, liquid inlet channel. DETAILED DESCRIPTION

[0039] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings.

[0040] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] The present application embodiment discloses an automatic feeding device for a rice noodle machine, referring to Figure 1 and Figure 2 , including a water tank 2, a water depth detection component 6, a water level control component, an oil brushing component and a material loading component. The water tank 2 is used to contain water flow so that the steaming plate 3 floats and moves along the water flow direction, the water depth detection component 6 is used to obtain water depth information at a preset depth of the water tank 2, the water level control component is used to control the water inlet speed and water outlet speed of the water tank 2 based on the water depth information, the oil brushing component is used to brush oil on the steaming plate 3 in the water tank 2, and the material loading component is used to spray a certain amount of vermicelli raw materials onto the steaming plate 3.

[0042] The water tank 2 is usually a square tank body. In different embodiments, the water tank 2 can be a tank body made of plastic, or a tank body made of stainless steel or other metal materials, as long as it can stably supply water to flow smoothly. The water tank 2 can extend straight or be arranged in a ring shape. If the water tank 2 extends straight, the water inlet end of the water tank 2 is the entry end of the steaming plate 3, and the water outlet end of the water tank 2 is the exit end of the steaming plate 3. The steaming plate 3 is constantly prevented from entering the end by manpower or other devices, and moves to the exit end at a uniform speed under the action of the water flow. In most embodiments, the water tank 2 is usually arranged in a ring shape. In one of the straight sections, the entry end of the water flow is set as the entry end of the steaming plate 3, and the water outlet end of the water flow is the exit end of the steaming plate 3. The steaming plate 3 at the exit end enters the steaming powder section under the drive of the water flow, and after coming out of the steaming powder section, the steaming plate 3 and the rice noodle skin are separated, and finally re-enters the water tank 2 to circulate back to the entry end of the steaming plate 3. As an example, the water tank 2 in the drawings only shows the straight line portion, which does not mean that the water tank 2 itself is only arranged in a straight line.

[0043] The water level control assembly includes an inlet valve, an outlet valve, an inlet pump, a flow rate detector and a controller. The flow rate detector is installed in the water tank 2. The inlet valve and the outlet valve are both arranged on the side wall of the water tank 2, and are used to control the inflow and outflow of water in the water tank 2. The inlet pump is connected to the inlet valve and is used to provide power for the water pump to enter the inlet valve. Among them, in different embodiments, the water flow rate in the water tank 2 can be controlled by the inlet valve, the inlet pump and the outlet valve, or it can be driven by setting a rotating paddle in the water tank 2. Any device that can make the water flow in the water tank 2 flow at a uniform speed can be used to keep the steaming plate 3 in the water tank 2 moving at a uniform speed. The controller is used to control the water inlet speed and the water outlet speed of the water tank 2 based on the water depth information. Of course, in different embodiments, only the water inlet speed or the water outlet speed can be controlled to achieve the purpose of adjusting the water depth.

[0044] The oil brushing assembly includes a frame 1 and an oil brush 4 mounted on the frame 1, and the oil brush 4 is arranged above the water tank 2. The steaming plate 3 floats in the water tank 2 and passes under the oil brush 4 for oil brushing. The oil brush 4 can move toward the water tank 2 to a specified height as needed, and rotate to brush oil at the same time, or move away from the water tank 2 to complete different stages of operation.

[0045] Since the feeding component needs to spray the liquid viscous rice noodle raw material into the steaming plate 3, in order to ensure that the rice noodle to be steamed can be separated from the steaming plate 3 smoothly and avoid the occurrence of adhesion, thereby reducing the cleaning steps and improving work efficiency, it is necessary to brush oil on the surface of the steaming plate 3 before feeding. Brushing oil can form a uniform oil film on the surface of the steaming plate 3. This oil film plays an isolating role, which can not only prevent the rice noodle from sticking to the steaming plate 3 during the steaming process, but also reduce the force required for the rice noodle to separate from the steaming plate 3, thereby ensuring the integrity of the rice noodle.

[0046] In order to achieve a uniform oiling effect, the oil brush 4 is equipped with a brush head with bristles and an oiler that continuously supplies oil. The oiler can evenly deliver oil to the surface of the bristles. When the oil brush 4 moves downward to a specified height, its bristles can press on the surface of the steaming plate 3 and rotate, thereby ensuring that the oil evenly covers the entire surface of the steaming plate 3. It should be noted that the height of the steaming plate 3 is related to the oiling effect. If the water level in the water tank 2 is high, the height of the steaming plate 3 rises accordingly. At this time, the stroke of the oil brush 4 is fixed, the bristles press on the steaming plate 3 with greater force, and the amount of oil applied is more; conversely, if the water level in the water tank 2 is low, the height of the steaming plate 3 is reduced, the pressing force of the bristles is correspondingly reduced, and the amount of oil applied is reduced. A reasonable amount of oiling will directly affect the production effect of the rice noodle skin. If the amount of oil is too much, too much oil will remain on the surface of the rice noodle skin after steaming, affecting the taste and increasing the cost of raw materials; if the amount of oil is too little, it is impossible to effectively prevent the rice noodle skin from sticking to the steaming plate 3, resulting in difficulty in separating the rice noodle skin and affecting subsequent processing steps. Therefore, it is necessary to adjust the water level through the water level control component and the water depth detection component 6, so as to adjust the contact between the oil brush 4 and the steaming plate 3 to ensure that the amount of oil brushed is appropriate.

[0047] The feeding assembly includes a frame 1 and a nozzle 5 mounted on the frame 1 and arranged above the water tank 2 and aligned with the water tank 2. The nozzle 5 is used to spray a fixed amount of rice noodle raw materials. When the steaming plate 3 moves below the nozzle 5, the nozzle 5 sprays a fixed amount of rice noodle raw materials into the steaming plate 3 and then stops, waiting for the next steaming plate 3 to arrive.

[0048] Reference Figure 3 and Figure 4 The water depth detection component 6 includes a protective shell 11, a detection probe 13 disposed inside the protective shell 11, and a vibration generator 102. The water depth detection component 6 is placed at a preset depth of the water tank 2 to measure the water depth at that location. The vibration generator 102 is installed in the protective shell 11. Based on the electro-induced reverse pressure effect generated by power-on, ultrasonic waves are generated to vibrate and remove dirt attached to the water depth detection component 6.

[0049] Since the vermicelli raw materials sprayed from the nozzle 5 may drip into the water tank 2, and the oil during the oiling process may also splash into the water tank 2, the water in the water tank 2 inevitably contains certain impurities. Although the water in the water tank 2 will flow due to the entry and exit of the steaming plate 3, and is replaced through the water replenishment and drainage system, the replacement speed is relatively slow. In this case, impurities are easily deposited and attached to the contact surface of the water flow, gradually forming dirt attachments. At the same time, the water depth detection component 6 in the water tank 2 is in contact with the water surface for a long time, and it is also easy to produce dirt attachments due to the deposition of minerals in the water.

[0050] The generation of dirt attachments will have a significant impact on the accuracy of water depth measurement. The water depth detection component 6 usually senses the water level through a sensor. The attachment of dirt attachments will change the surface characteristics of the sensor, which may cause the measurement signal to be weakened, interfered or offset, and ultimately affect the accuracy of the measurement results. In the present embodiment, the water depth of the water tank 2 needs to be precisely controlled, and even an error of a few millimeters will affect the oiling effect. If the water level is too high, the height of the steaming plate 3 will rise accordingly, causing the bristles of the oil brushing component to press too much, which may cause the steaming plate 3 to be over-oiled, affecting the taste of the rice noodle skin and the cost of raw materials; if the water level is too low, the height of the steaming plate 3 drops, and the bristles are not pressed enough, which can easily lead to uneven oiling and increase the risk of rice noodle skin sticking to the steaming plate 3.

[0051] The protective shell 11 is designed as a cylindrical structure with an axis, and its cross section is circular in this embodiment. The hydrodynamic characteristics of this design enable the protective shell 11 to effectively reduce fluid resistance in a water flow environment. When the protective shell 11 is placed in the underwater area of ​​the water tank 2, the water flow in the water tank 2 continues to flow from upstream to downstream and impacts the surface of the protective shell 11.

[0052] The impact of the water flow exhibits two opposing effects. On the one hand, since the water flow contains suspended impurities and the water flow velocity is relatively low, these impurities will gradually settle or stick to the surface of the protective shell 11 when the water flows through it. On the other hand, the impact force of the water flow has a cleaning effect and can peel off the impurities that have been deposited on the surface of the protective shell 11. At this time, the impurity deposition and peeling process forms a dynamic balance, that is, as the water flow velocity, direction and impurity concentration change, the deposition and detachment states on the surface of the protective shell 11 tend to stabilize. The realization of this dynamic balance depends on multiple factors: the greater the water flow velocity and the stronger the impact force, the greater the impurity detachment rate; when the flow velocity is too low or the impurity concentration is too high, the deposition effect dominates, resulting in the accumulation of impurities on the surface of the protective shell.

[0053] The bottom of the protective shell 11 is provided with a liquid inlet channel 103, which is used to guide the external fluid into the interior of the protective shell 11 and contact the internal detection probe 13. In order to avoid the shape of the liquid inlet channel 103 from adversely affecting the flow characteristics of the water flowing into the protective shell 11, or to ensure that there is no significant difference in the water flow when the protective shell 11 is at different rotation angles, the present solution preferably sets the liquid inlet channel 103 to a cylindrical structure to optimize the stability and fluidity of the water flow. At the same time, the pressure input port of the detection probe 13 is set on the side of the liquid inlet channel 103, which is used to sense the static pressure of the fluid and convert it into an electrical signal.

[0054] In different embodiments, the detection probe 13 can be selected in different models according to different needs, such as an isolated diffused silicon sensitive element or a ceramic capacitor pressure sensitive probe, which can accurately convert the static pressure signal into an electrical signal to achieve accurate detection of water flow pressure.

[0055] Since the dirt attachments on the surface of the protective shell 11 form a dynamic balance of deposition and peeling, it means that impurities near the protective shell 11 will easily transfer to adjacent areas. Therefore, it is necessary to clean the entire water depth detection component 6 to remove the dirt attachments. Therefore, in order to solve the problem that the measurement accuracy is affected by the accumulation of dirt attachments on the surface of the detection probe 13, a vibration generator 102 is installed in the water depth detection component 6. The vibration generator 102 is automatically started according to the degree of accumulation of dirt attachments. By vibrating the detection probe 13 at a specific frequency and amplitude, the vibration generator 102 can effectively remove the dirt attachments on the probe surface and keep its surface clean, thereby ensuring that the measurement accuracy is not affected by the dirt attachments. It should be noted that since the concentration of impurities in the water flow is dynamically changing, the deposition rate is also not fixed. If a shorter time interval is set to generate vibration, it is easy to reduce the life of the water depth detection component 6. Therefore, the timing of cleaning is dynamically controlled by the thickness of the dirt attachments.

[0056] In the present embodiment, the vibration generator 102 is a piezoelectric ceramic. Since the power-on position of the piezoelectric ceramic is determined, the characteristic direction of the vibration generator 102 is determined. Here, the characteristic direction of the vibration generator 102 is the vibration direction of the piezoelectric ceramic at the corresponding power-on position. Since the ultrasonic frequency determines the intensity of the shock wave generated by the cavitation bubble rupture. For parts with small diameter holes or slits, it is better to use high-frequency ultrasonic cleaning (generally 40kHz) with a shorter wavelength and concentrated energy. However, high-frequency ultrasonic vibration attenuates greatly in the cleaning liquid, the action distance is shorter, the cavitation intensity is also weaker, the cleaning efficiency is lower, and the "shadow" area generated by the directionality of the high frequency makes it impossible to clean certain parts of the parts. In other words, if the vibration direction of the vibration generator 102 is toward the side direction, the "shadow" area in the vertical direction is not good for cleaning. Therefore, in one embodiment of the present application, the vibration direction of the vibration generator 102 corresponds to the axis of the protective shell 11, and the cross-section of the protective shell 11 is designed to be circular and gradually thicken from both ends to the middle, so that the vibration direction and the surface of the protective shell 11 form a certain angle, so that the vibration produces a component on the surface of the protective shell 11, thereby reducing the negative impact of the shadow area. In addition, the water flow impacts the inclined surface, which cooperates with the vibration of the surface of the protective shell 11, further enhancing the cleaning effect of the surface of the protective shell 11. The vibration direction is orthogonal to the setting direction of the pressure input port, which can also minimize the negative impact of water flow vibration on pressure measurement.

[0057] In this embodiment, the water depth detection assembly 6 further includes a conductive slip ring 12 and a gyroscope disposed inside the protective shell 11. The protective shell 11 is rotationally connected to the cable 5 through the conductive slip ring 12, and the detection probe 13 and the gyroscope in the protective shell 11 are connected to the cable 5 through the conductive slip ring 12 to communicate with the outside and supply power.

[0058] The protective shell 11 is rotatably connected to the cable 5 through a conductive slip ring 12, and the cable 5 is connected to the conductive slip ring 12, and the conductive slip ring 12 is electrically connected to the vibration generator 102 and the detection probe 13, so as to realize the power supply and signal transmission of the cable 5 to the vibration generator 102 and the detection probe 13. The conductive slip ring 12 is a bearing structure on the protective shell 11, so that the fixed end of the cable 5 can rotate on the protective shell 11. The other end of the cable 5 is fixed to the protective shell 11 through a rotating structure, and the other end is connected to the host 2 and the external power supply device. The bearing inside the protective shell 11 enables the cable 5 to rotate with the protective shell 11. The conductive slip ring 12 maintains electrical continuity through an annular conductive component and a brush, and the cable 5 can be electrically connected through the inside of the slip ring. One end of the cable 5 is connected to the fixed part of the rotary joint, and the other end is connected to the rotating part. No matter how the protective shell 11 rotates, the contact points in the slip ring will maintain stable electrical contact, thereby ensuring the normal transmission of current.

[0059] In addition, in order to prevent the external environment from affecting the cable 5 and the rotary joint, a sealing design may be added to the rotary joint to prevent water or other impurities from entering the joint and affecting the reliability of the electrical connection.

[0060] Since the vibration generator 102 is used in the present solution to generate high-speed vibration to accelerate the separation of impurities, the protective shell 11 is rotated to adjust the water-facing surface of the protective shell 11, which can cooperate with the action of the water flow to accelerate the separation of impurities. In different embodiments, the rotation can be achieved by designing a motor in the water depth detection component 6, or by designing an external structure. In order to reduce the energy demand of the water depth detector and reduce the complexity of the structure, in the embodiment of the present application, a plurality of ridges 101 are provided on the protective shell 11 along the axial direction, and the ridges 101 are provided with inclined surfaces and vertical surfaces perpendicular to the surface of the protective shell 11, and the inclined surfaces of each ridge 101 are inclined along the same circumferential direction of the protective shell 11. The ridges 101 are equivalent to paddles on the protective shell 11, and can drive the protective shell 11 to rotate under the impact of the water flow.

[0061] In the present solution, since depressions are actually formed between the ridges 101 and ridges 101 on the protective shell 11, impurities are easily accumulated, so that the entire protective shell 11 tends to become a relatively smooth column. Therefore, in a certain embodiment of the present application, a gyroscope is provided inside the protective shell 11 to monitor the rotation angle of the water depth detection component 6. According to the change in the rotation angle per unit time, the rotation speed of the water depth detection component 6 can be calculated. Since the more impurities accumulate, the slower the rotation speed, when the rotation speed is lower than a certain threshold, it is judged that the accumulation degree of impurities such as dirt attachments is high, and the vibration generator 102 needs to be started for cleaning. Since the water flow in different time periods of a day is quite different, the measurement of the rotation speed can be fixed at one or more different specific time periods of each day, and the rotation speed of each specific time period corresponds to a specific threshold.

[0062] Furthermore, the working steps of the water level control component include S1-S4:

[0063] S1. Obtain the current water depth information and real-time water flow speed information, and read the preset water level upper and lower thresholds;

[0064] S2. Obtain the current speed of the water depth detector, and obtain the water flow velocity corresponding to the current speed of the water depth detector by looking up the table, and issue a cleaning instruction based on the relationship between the water flow velocity corresponding to the current speed and the water flow velocity;

[0065] S3. When the current water level is greater than the upper water level threshold, reduce the water inlet speed until the water level returns to between the upper water level threshold and the lower water level threshold;

[0066] S4. When the current water level is lower than the lower water level threshold, increase the water inlet speed until the water level returns to the upper water level threshold and the lower water level threshold.

[0067] Further, S2 includes the following sub-steps S21-S25:

[0068] S21 obtains gyroscope information and calculates the current rotation speed of the water depth detection component 6;

[0069] S22. Obtain the water flow velocity corresponding to the current speed of the water depth detector by looking up the table;

[0070] S23. Determine whether the difference between the current rotation speed and the real-time water flow speed is within the error range. If it is outside the error range, send a cleaning instruction to the vibration generator so that the vibration generator emits ultrasonic vibrations;

[0071] S24. After a preset time, the gyroscope information is obtained again, the current rotation speed of the water depth detection component 6 is calculated, and the water flow speed corresponding to the current rotation speed of the water depth detector is obtained by looking up the table;

[0072] S25. Determine whether the difference between the current rotation speed and the real-time water flow speed is within the error range. If not, an alarm is triggered. If yes, it is determined that the water depth detector has resumed normal working state.

[0073] The implementation principle of this embodiment is as follows: the fluid in the water flow enters the interior of the water depth detection component 6 through the liquid inlet channel 103 and contacts the detection probe 13. The detection probe 13 obtains the water pressure signal and sends it to the controller, which processes the water pressure signal to calculate the water depth. During use, impurities, dirt, attachments and other substances in the water tank 2 are gradually deposited or attached to the protective shell 11. The ridges 101 on the protective shell 11 drive the protective shell 11 to rotate around the conductive slip ring 12 under the impact of the water flow, so that the dirt attachments on the protective shell 11 are evenly washed off by the water flow during the rotation of the protective shell 11 and the vibration of the vibration generator 102.

[0074] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An automatic feeding device for a rice noodle machine, characterized in that: include: A water tank, used to contain water flow so that the steaming plate can float and move along the direction of the water flow; A water depth detection component is arranged at a preset depth of the inner wall of the water tank, and is used to obtain water depth information at the preset depth of the water tank; A water level control component is provided in the water tank and is used to control the water inflow speed of the water tank based on the water depth information; An oil brush assembly, comprising a frame and an oil brush mounted on the frame and arranged above the water tank, wherein the oil brush can move toward the water tank to a specified height and rotate or move away from the water tank; The feeding assembly comprises a frame and a nozzle installed on the frame, arranged above a water tank and aimed at the water tank, wherein the nozzle is used for spraying a quantitative amount of rice noodle raw materials.

2. The automatic feeding device of the rice noodle machine according to claim 1, characterized in that: The water level control component comprises a water inlet valve, a water outlet valve, a water inlet pump and a flow rate detector, and the flow rate detector is installed in the water tank.

3. The automatic feeding device of the rice noodle machine according to claim 1 is characterized in that: The water depth detection component includes a protective shell, a detection probe arranged inside the protective shell, and a vibration generator. The protective shell is columnar, and a liquid inlet channel is opened on the bottom surface of the protective shell. The liquid inlet channel is used for external fluid to enter and contact the detection probe inside the protective shell.

4. The automatic feeding device of the rice noodle machine according to claim 3 is characterized in that: The vibration generator is a piezoelectric ceramic, which is installed in a protective shell. The vibration direction of the inverse piezoelectric effect of the piezoelectric ceramic is set as a characteristic direction of the vibration generator, and the characteristic direction of the vibration generator is arranged along the axial direction of the protective shell.

5. The automatic feeding device of the rice noodle machine according to claim 4, characterized in that: The protective shell is provided with a plurality of ridges along the axial direction, and the ridges are provided with inclined surfaces and vertical surfaces perpendicular to the surface of the protective shell, and the inclined surfaces of each ridge are inclined along the same circumferential direction of the protective shell.

6. The automatic feeding device of the rice noodle machine according to claim 5, characterized in that: The cross section of the protective shell is circular and gradually becomes thicker from both ends to the middle.

7. The automatic feeding device of the rice noodle machine according to claim 6, characterized in that: The water depth detection component also includes a conductive slip ring, the protective shell is rotatably connected to the cable through the conductive slip ring, the cable is connected to the conductive slip ring, and the conductive slip ring is electrically connected to the vibration generator and the detection probe.

8. The automatic feeding device of the rice noodle machine according to claim 7, characterized in that: The water depth detection component also includes a gyroscope, which is arranged in the protective shell. The gyroscope is used to measure the rotation angle of the protective shell. The host obtains the rotation angle information to calculate the current rotation speed. The host issues a cleaning instruction based on the relative size of the rotation speed and a preset rotation speed lower limit threshold. The vibration generator generates ultrasonic vibration based on the cleaning instruction.

9. The automatic feeding device of the rice noodle machine according to claim 8, characterized in that: The working steps of the water level control assembly include: S1. Obtain the current water depth information and real-time water flow speed information, and read the preset water level upper and lower thresholds; S2. Obtain the current speed of the water depth detector, and obtain the water flow velocity corresponding to the current speed of the water depth detector by looking up the table, and issue a cleaning instruction based on the relationship between the water flow velocity corresponding to the current speed and the water flow velocity; S3. When the current water level is greater than the upper water level threshold, reduce the water inlet speed until the water level returns to between the upper water level threshold and the lower water level threshold; S4. When the current water level is lower than the lower water level threshold, increase the water inlet speed until the water level returns to the upper water level threshold and the lower water level threshold.

10. The automatic feeding device of the rice noodle machine according to claim 9, characterized in that: The S2 comprises the following sub-steps: S21. Obtain gyroscope information and calculate the current rotation speed of the water depth detection component; S22. Obtain the water flow velocity corresponding to the current speed of the water depth detector by looking up the table; S23. Determine whether the difference between the current rotation speed and the real-time water flow speed is within the error range. If it is outside the error range, send a cleaning instruction to the vibration generator so that the vibration generator emits ultrasonic vibrations; S24. After a preset time, the gyroscope information is obtained again, the current rotation speed of the water depth detection component is calculated, and the water flow speed corresponding to the current rotation speed of the water depth detector is obtained by looking up the table; S25. Determine whether the difference between the current rotation speed and the real-time water flow speed is within the error range. If not, an alarm is triggered. If yes, it is determined that the water depth detector has resumed normal working state.

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