A smart deviation correction device and method for instant noodle cake conveyor belt

Abstract

This invention discloses an intelligent deviation correction device and method for a conveyor belt of instant noodle cakes, relating to the field of noodle cake conveying technology. It includes a conveyor belt for carrying and conveying lightweight blocky materials; a support slide that slides in contact with the lower surface of the conveyor belt, with drag-reducing zones on both lateral sides of the support slide; a position detection module disposed on one side of the conveyor belt for real-time identification of the position information of the conveyor belt edge; an ultrasonic drag-reducing module including an array of ultrasonic transducers located within the corresponding drag-reducing zones; and a control module communicatively connected to the position detection module and the ultrasonic drag-reducing module. When the position detection module detects that the conveyor belt is deviating, it reduces the sliding friction coefficient between the support slide and the conveyor belt by exciting an air layer. Under the action of the friction difference, the conveyor belt shifts towards the center position. This invention can automatically correct the conveyor belt deviation by generating a frictional resistance difference.

Description

Technical Field

[0001] This invention relates to the field of noodle conveying technology, and in particular to an intelligent deviation correction device and method for a noodle conveyor belt. Background Technology

[0002] In the food processing industry, especially in the production of instant noodles, conveyor belts are usually used to continuously carry and transport lightweight, blocky noodle cakes. However, during long-term high-speed operation, the conveyor belt is prone to lateral deviation due to factors such as uneven material loading, uneven tension, or equipment vibration.

[0003] Currently, physical contact methods such as mechanical guide rollers or self-aligning idlers are commonly used to force the conveyor belt back to center. However, for instant noodle cakes, a special material, traditional mechanical alignment methods have many problems. For example, the mechanical forced alignment action is abrupt, and the lateral squeezing force and vibration generated during alignment can easily be transmitted to the worktable, causing the fragile instant noodle cakes to be thrown or crushed at high frequency, reducing the product qualification rate. In addition, residue and oil stains affect the operation of the alignment system. At the same time, traditional alignment often uses single-time fixed power adjustment or has mechanical lag, which can easily lead to over-adjustment of the conveyor belt, causing the conveyor belt to exhibit "snake-like" instability, which is not conducive to centering the conveyor belt.

[0004] Therefore, an intelligent correction device and method for instant noodle conveyor belts were invented to solve the above problems. Summary of the Invention

[0005] The main objective of this invention is to provide an intelligent correction device and method for instant noodle cake conveyor belts, which can effectively solve the technical problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an intelligent correction device for a conveyor belt of instant noodle cake, comprising: a conveyor belt for carrying and conveying lightweight blocky materials;

[0007] A support slide bed is provided, which slides in contact with the lower surface of the conveyor belt, and drag reduction zones are provided on both sides of the support slide bed;

[0008] A position detection module is installed on one side of the conveyor belt to identify continuous image data of the edge of the conveyor belt in real time to obtain lateral position information and calculate the lateral offset of the conveyor belt.

[0009] An ultrasonic drag reduction module, comprising an array of ultrasonic transducers located within a corresponding drag reduction region;

[0010] The control module is communicatively connected to the position detection module and the ultrasonic drag reduction module. When the position detection module detects that the conveyor belt is deviating, it activates the ultrasonic drag reduction module. The ultrasonic drag reduction module excites the air layer through high-frequency vibration, thereby reducing the sliding friction coefficient between the support slide and the conveyor belt. Under the action of the friction difference on both sides, the conveyor belt slides towards the side with greater friction, and then deviates towards the center position of the support slide.

[0011] Preferably, the ultrasonic drag reduction module includes a sound guide plate, which is located on the upper surface of the ultrasonic transducer array, and the upper surface of the sound guide plate is in contact with the lower surface of the conveyor belt.

[0012] Preferably, the acoustic guide plate has multiple arrayed, micron-sized slots on the side near the conveyor belt to eliminate lateral coupling vibrations and convert ultrasonic longitudinal waves into uniformly distributed surface standing waves.

[0013] Preferably, the upper surface of the acoustic guide plate and the side wall of the groove are provided with a self-cleaning oleophobic and acoustically permeable membrane. The self-cleaning oleophobic and acoustically permeable membrane is configured to transmit ultrasonic vibration energy to prevent oil or debris from entering the groove and to prevent acoustic damping effect and ultrasonic cavitation effect heat loss caused by local oil.

[0014] Preferably, the supporting slide has drainage troughs extending along its length on both sides, and the ultrasonic transducer array is located between the two drainage troughs to isolate external debris and drain accumulated oil.

[0015] Preferably, the base of the supporting slide is provided with a cooling channel, which passes through the drag reduction zone and is connected to a fluid cooling system to reduce the heat generated by the ultrasonic drag reduction module.

[0016] Preferably, the conveyor belt adopts a double-layer composite structure, the upper layer being a food-grade polymer bearing layer with high damping characteristics, used to absorb and attenuate the micron-level high-frequency vibration energy transmitted from bottom to top; the lower layer being a dense polymer sliding layer with high rigidity and acoustic reflection characteristics.

[0017] This invention also provides an intelligent deviation correction method for a conveyor belt for instant noodle cakes, comprising the following steps:

[0018] S1: The position detection module collects visual feature data of the edge of the conveyor belt body in real time and calculates the direction of deviation of the conveyor belt from the center line and the real-time offset.

[0019] S2: According to the deviation direction, the control module starts or increases the output power of the corresponding ultrasonic transducer array to generate an ultrasonic extrusion air film between the conveyor belt and the support slide, so that the sliding friction coefficients on both sides of the conveyor belt and the support slide change differently.

[0020] S3: Utilizing the dynamic characteristic of the conveyor belt deflecting towards the high resistance side under the action of running tension, driven by the friction difference on both sides of the conveyor belt, the conveyor belt slides towards the center position of the support slide to correct its deviation.

[0021] Preferably, in step S3, the output power control of the ultrasonic transducer array includes a closed-loop power adjustment step: the control module receives the real-time offset, calculates the target correction output value through a PID adjustment algorithm, and converts the target correction output value into a PWM amplitude modulation signal to control the output power of the ultrasonic transducer array. The larger the real-time offset, the greater the output power of the ultrasonic transducer array, the thicker the excited ultrasonic air film, and the greater the decrease in the sliding friction coefficient between the support slide and the conveyor belt.

[0022] Preferably, the control method further includes dynamic smooth attenuation and dead zone anti-vibration control steps: during the process of the conveyor belt returning to the center position, as the real-time offset gradually decreases, the control module synchronously and continuously reduces the output power of the corresponding ultrasonic transducer array to achieve stepless smooth correction and prevent over-adjustment; a preset allowable dead zone range is defined, and when the real-time offset shrinks and enters the allowable dead zone range, the control module determines that the conveyor belt has been centered and controls the ultrasonic transducer array to synchronously enter a low-power balance standby state to maintain air film basic lubrication.

[0023] The technical effects and advantages of this invention are as follows:

[0024] This invention, through the design of an ultrasonic drag reduction module, cooling channel, drain trough, acoustic guide plate, and grooving, detects conveyor belt deviation. High-frequency vibration generates an air layer between the conveyor belt and the supporting slide, transforming the original dry friction into an air film lubrication state. The difference in friction between the two sides causes the conveyor belt to automatically slide towards the center to correct its deviation. This avoids the edge wear and lateral pressure-induced breakage of the conveyor belt caused by traditional mechanical correction methods. It also prevents oil and residue from getting stuck between the contact surface of the conveyor belt and the ultrasonic transducer array, ensuring the stable formation of the ultrasonic air film. Furthermore, the grooving effectively eliminates lateral coupling vibration, converting the ultrasonic longitudinal wave into a uniformly distributed surface standing wave, ensuring consistent drag reduction across the entire surface of the acoustic guide plate. This facilitates self-correction based on the friction difference between the two sides of the conveyor belt. The control system adjusts the output power of the ultrasonic transducer array in real-time based on the actual deviation, achieving stepless smooth correction and preventing the conveyor belt from snaking during the correction process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0027] Figure 3 For the present invention Figure 2 A magnified view of a section at point A in the middle;

[0028] Figure 4 This is a schematic diagram of the structure of the present invention after the conveyor belt is removed;

[0029] Figure 5 For the present invention Figure 4 A magnified view of a section at point B in the middle;

[0030] Figure 6 This is a cross-sectional view of the cooling channel and supporting slide in this invention.

[0031] In the diagram: 1. Conveyor belt; 2. Support slide; 201. Drag reduction zone; 202. Sewage trough; 203. Cooling channel; 3. Position detection module; 4. Ultrasonic drag reduction module; 401. Ultrasonic transducer array; 402. Sound guide plate; 403. Groove; 404. Self-cleaning oleophobic and acoustically permeable membrane. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Currently, physical contact methods such as mechanical guide rollers or self-aligning idlers are used to force the conveyor belt to return to center. However, for instant noodle cakes, a special material, the mechanical forced correction action is stiff. The lateral squeezing force and vibration generated during the correction are easily transmitted to the table, causing the fragile instant noodle cakes to be thrown at high frequency and break, reducing the product qualification rate. Therefore, this embodiment was invented to solve the above problems.

[0035] like Figures 1 to 3 As shown, this embodiment provides an intelligent deviation correction device for a noodle cake conveyor belt, including: a conveyor belt 1 for carrying and conveying lightweight blocky materials; a support slide bed 2 that slides in contact with the lower surface of the conveyor belt 1, with drag reduction zone 201 position detection modules 3 on both sides of the support slide bed 2, which are set on one side of the conveyor belt 1 to identify continuous image data of the edge of the conveyor belt 1 in real time to obtain lateral position information and calculate the lateral offset of the conveyor belt 1; and an ultrasonic drag reduction module 4, which includes an ultrasonic transducer array 401 located in the corresponding drag reduction zone 201.

[0036] The control module communicates with the position detection module 3 and the ultrasonic drag reduction module 4. When the position detection module 3 detects that the conveyor belt 1 is deviating, the ultrasonic drag reduction module 4 is activated. The high-frequency vibration excites the air layer, thereby reducing the sliding friction coefficient between the support slide 2 and the conveyor belt 1. Under the action of the friction difference on both sides, the conveyor belt 1 slides to the side with greater friction, and then shifts towards the center position of the support slide 2.

[0037] In use, the conveyor belt 1 slides on the support slide 2 to transport the block-shaped dough, and the conveyor belt 1 and the support slide 2 are in a state of dry friction. When the position detection module 3 detects a shift of the conveyor belt 1 along the length direction of the support slide 2 at a high frequency frame rate and the shift reaches a threshold, the control module receives the shift signal detected by the position detection module 3. This causes the control module to transmit the shift signal to the ultrasonic transducer array 401 on the corresponding side. At this time, the ultrasonic transducer array 401 starts and works, causing it to generate longitudinal micron-level high-frequency forced vibration. The high-frequency vibration periodically compresses and expands the intercepted air at the surface of the conveyor belt 1. At this time, the support slide 2 and the support slide 2 are in a state of dry friction. At the contact surface of conveyor belt 1, an ultrasonic extrusion air film with load-bearing capacity is generated. With the intervention of the ultrasonic extrusion air film, the friction pair between the offset side of conveyor belt 1 and the supporting slide bed 2 changes from dry friction to air film lubrication and fluidization. This causes the dynamic friction coefficient between the offset side of conveyor belt 1 and the supporting slide bed 2 to decrease nonlinearly. Under the condition that the original dry friction state is maintained on the non-offset side of conveyor belt 1, a transverse frictional resistance gradient is generated between conveyor belt 1 and supporting slide bed 2. At this time, the force coupling effect of the running tension of conveyor belt 1 causes conveyor belt 1 to automatically slide flexibly to the side with high resistance, so that conveyor belt 1 can return to center and correct itself without mechanical contact.

[0038] In summary, by introducing the ultrasonic drag reduction module 4, when the conveyor belt 1 is detected to be deviating, an air layer is generated between the conveyor belt 1 and the support slide bed 2 through high-frequency vibration, which transforms the original dry friction into an air film lubrication state. The difference in friction between the two sides causes the conveyor belt 1 to automatically slide towards the center position to correct the deviation, thus avoiding the wear on the edges caused by traditional mechanical correction and the cracking and crumbling of the cake caused by lateral extrusion.

[0039] Example 2

[0040] During use, it was found that in the complex working conditions of food processing sites with high oil stains and a lot of debris, as well as the thermal effect of the high-power ultrasonic transducer system, oil stains or debris can easily enter between the support slide 2 and the conveyor belt 1. At the same time, heat accumulates at the contact point between the conveyor belt 1 and the support slide 2, affecting the efficiency of automatic correction of the conveyor belt 1. Therefore, further improvements were made based on the above embodiments.

[0041] like Figures 1 to 6 As shown, the ultrasonic drag reduction module 4 includes a sound guide plate 402, which is located on the upper surface of the ultrasonic transducer array 401, and the upper surface of the sound guide plate 402 is in contact with the lower surface of the conveyor belt 1.

[0042] The acoustic guide plate 402 has multiple arrayed, micron-sized slots 403 on the side near the conveyor belt 1, which are used to eliminate transverse coupling vibration and convert ultrasonic longitudinal waves into uniformly distributed surface standing waves.

[0043] The upper surface of the acoustic guide plate 402 and the side wall of the groove 403 are both provided with a self-cleaning oleophobic and acoustically permeable membrane 404. The self-cleaning oleophobic and acoustically permeable membrane 404 is configured to transmit ultrasonic vibration energy to prevent oil or debris from entering the groove 403 and to prevent acoustic damping effect and ultrasonic cavitation effect heat loss caused by local oil.

[0044] The support slide 2 has drain troughs 202 extending along its length on both sides. The ultrasonic transducer array 401 is located between the two drain troughs 202 to isolate external debris and drain accumulated oil.

[0045] The base supporting the slide bed 2 has a cooling channel 203 inside. The cooling channel 203 passes through the drag reduction zone 201 and is connected to a fluid cooling system to reduce the heat generated by the ultrasonic drag reduction module 4.

[0046] The conveyor belt 1 adopts a double-layer composite structure. Its upper layer is a food-grade polymer bearing layer with high damping characteristics, which is used to absorb and attenuate the micron-level high-frequency vibration energy transmitted from the bottom up; its lower layer is a dense polymer sliding layer with high rigidity and acoustic reflection characteristics.

[0047] In use, when the conveyor belt 1 slides in the opposite direction from the center to one of the two sides on the support slide bed 2, a sound guide plate 402 is provided between the support slide bed 2 and the conveyor belt 1. The sound guide plate 402 is made of titanium alloy or high-strength hard aluminum alloy with extremely low sound attenuation coefficient. The sound guide plate 402 covers the upper surface of the ultrasonic transducer array 401 and contacts the lower surface of the conveyor belt 1. Micron-level uniform amplitude grooves 403 are prepared on the upper surface of the sound guide plate 402 by precision electrical discharge machining or micro-nano lithography. The extension direction of the grooves 403 is perpendicular to the running direction of the conveyor belt 1 to eliminate the lateral resonance of the sound guide plate 402. This converts the longitudinal wave fed from the bottom surface of the sound guide plate 402 by the ultrasonic vibration generated by the ultrasonic transducer array 401 into a standing wave field uniformly distributed on the surface of the sound guide plate 402. To ensure that the amplitude of the acoustic guide plate 402 is strictly controlled within the range of 5μm to 20μm, the bottom layer of the conveyor belt 1 is made of high-elasticity and low-surface-energy polymer materials such as dense modified polytetrafluoroethylene (PTFE) or special polyimide (PI). Its high acoustic impedance can form effective high-frequency rigid collision and acoustic radiation rebound with the micron-level vibration of the supporting slide 2 surface, ensuring the stable establishment of the ultrasonic air film. The upper layer of the conveyor belt 1 is made of food-grade polyurethane (PU) or medical-grade silicone rubber, which has excellent viscoelasticity and high damping loss factor. It can convert the residual high-frequency micro-vibration energy above 20kHz transmitted from the bottom layer into micro-heat energy dissipation through molecular chain internal friction, and isolate the transmission of vibration to the upper platform, ensuring that discrete materials such as dough do not experience high-frequency throwing or structural fatigue fracture.

[0048] Meanwhile, drain troughs 202 extending along their length are provided on both sides of the supporting slide bed 2. The ultrasonic transducer array 401 is located between the two drain troughs 202. When residue or oil on the conveyor belt 1 enters the space between the conveyor belt 1 and the supporting slide bed 2 from its edge, the residue and oil will first enter the drain troughs 202 on both sides and be discharged, preventing oil or residue from intruding between the sound guide plate 402 and the conveyor belt 1, thus ensuring the stable formation of the ultrasonic air film. At the same time, a self-cleaning oleophobic and acoustically permeable membrane 404 is coated on the surface of the sound guide plate 402. The thickness of this membrane is controlled within the minimum ratio of the sound wave wavelength of its material, ensuring that the ultrasonic energy can penetrate better. Meanwhile, the external circulation system is connected through the cooling channel 203 to exchange heat with the energy generated by the ultrasonic transducer array 401 during operation, ensuring the normal operation of the ultrasonic transducer array 401.

[0049] In summary, the arrangement of cooling channel 203, drain trough 202, acoustic guide plate 402, and groove 403 not only prevents oil and residue from getting stuck between the contact surface of conveyor belt 1 and ultrasonic transducer array 401, ensuring the stable formation of ultrasonic air film, but also effectively eliminates lateral coupling vibration through groove 403, converting ultrasonic longitudinal waves into uniformly distributed surface standing waves, ensuring the consistency of drag reduction effect across the entire area of ​​the upper surface of acoustic guide plate 402, and facilitating self-correction through the friction difference between the two sides of conveyor belt 1.

[0050] Example 3

[0051] During use, it was found that when the ultrasonic transducer array 401 was used to correct the deviation of the conveyor belt 1 by frictional resistance gradient using a single and constant power, the ultrasonic transducer array 401 was prone to exceeding the adjustment range, which caused the conveyor belt 1 to exhibit serpentine oscillation instability. Therefore, further improvements were made based on the above implementation.

[0052] This embodiment provides an intelligent deviation correction method for instant noodle cake conveyor belts, including the following steps:

[0053] S1: The position detection module 3 collects visual feature data of the edge of the conveyor belt 1 in real time, and calculates the direction of deviation of the conveyor belt 1 from the center line and the real-time offset.

[0054] S2: The control module starts or increases the output power of the corresponding ultrasonic transducer array 401 according to the direction of deviation, and excites ultrasonic extrusion air film between the conveyor belt 1 and the support slide 2, so that the sliding friction coefficients on both sides of the conveyor belt 1 and the support slide 2 change differently.

[0055] S3: Utilizing the dynamic characteristics of the conveyor belt 1 deflecting towards the high resistance side under the action of running tension, driven by the friction difference on both sides of the conveyor belt 1, the conveyor belt 1 slides towards the center position of the support slide bed 2 to correct its deviation.

[0056] In step S3, the output power control of the ultrasonic transducer array 401 includes a closed-loop power adjustment step: the control module receives the real-time offset, calculates the target correction output value through the PID adjustment algorithm, and converts the target correction output value into a PWM amplitude modulation signal to control the output power of the ultrasonic transducer array 401. The larger the real-time offset, the greater the output power of the ultrasonic transducer array 401, the thicker the ultrasonic air film generated, and the greater the decrease in the sliding friction coefficient between the support slide bed 2 and the conveyor belt 1.

[0057] The control method also includes dynamic smooth attenuation and dead zone anti-vibration control steps: During the process of conveyor belt 1 returning to the center position, as the real-time offset gradually decreases, the control module synchronously and continuously reduces the output power of the corresponding ultrasonic transducer array 401 to achieve stepless smooth correction to prevent over-adjustment; a preset allowable dead zone range is set. When the real-time offset shrinks and enters the allowable dead zone range, the control module determines that conveyor belt 1 has been centered and controls the ultrasonic transducer array 401 to synchronously enter a low-power balance standby state to maintain air film basic lubrication.

[0058] In summary, by using a PID algorithm to calculate and output a PWM amplitude modulation signal based on the real-time offset, the control system adjusts the output power of the ultrasonic transducer array 401 in real time. When the conveyor belt 1 returns to the center and enters the dead zone, the output power of the ultrasonic transducer array 401 is automatically reduced, achieving stepless smooth correction to prevent over-adjustment and avoiding the problem of serpentine oscillation of the conveyor belt 1 during the correction process.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent deviation correction device for a conveyor belt of instant noodle cakes, characterized in that, include: Conveyor belt (1), used to carry and transport light block materials; A support slide (2) is provided on both sides of the support slide (2) to make contact with the lower surface of the conveyor belt (1). The position detection module (3) is set on one side of the conveyor belt (1) to identify continuous image data of the edge of the conveyor belt (1) in real time to obtain lateral position information and calculate the lateral offset of the conveyor belt (1). An ultrasonic drag reduction module (4) includes an ultrasonic transducer array (401) located within the corresponding drag reduction region (201). The control module is connected to the position detection module (3) and the ultrasonic drag reduction module (4). When the position detection module (3) detects that the conveyor belt (1) is deviating, the ultrasonic drag reduction module (4) is activated. The air layer is excited by high-frequency vibration, thereby reducing the sliding friction coefficient between the support slide (2) and the conveyor belt (1). Under the action of the friction difference on both sides, the conveyor belt (1) slides to the side with greater friction, and then shifts to the center position of the support slide (2).

2. The intelligent deviation correction device for a conveyor belt of instant noodle cakes according to claim 1, characterized in that, The ultrasonic drag reduction module (4) includes a sound guide plate (402), which is located on the upper surface of the ultrasonic transducer array (401), and the upper surface of the sound guide plate (402) is in contact with the lower surface of the conveyor belt (1).

3. The intelligent deviation correction device for a conveyor belt for instant noodle cakes according to claim 2, characterized in that, The acoustic guide plate (402) has multiple arrayed and micron-sized slots (403) on the side near the conveyor belt (1) to eliminate transverse coupling vibration and convert ultrasonic longitudinal waves into uniformly distributed surface standing waves.

4. The intelligent deviation correction device for a conveyor belt of instant noodle cakes according to claim 3, characterized in that, The upper surface of the acoustic guide plate (402) and the side wall of the groove (403) are provided with a self-cleaning oleophobic and acoustically permeable membrane (404). The self-cleaning oleophobic and acoustically permeable membrane (404) is configured to transmit ultrasonic vibration energy to prevent oil or debris from entering the groove (403) and to prevent acoustic damping effect and ultrasonic cavitation effect heat loss caused by local oil.

5. The intelligent deviation correction device for a conveyor belt for instant noodle cakes according to claim 1, characterized in that, The support slide (2) has drain troughs (202) extending along its length on both sides. The ultrasonic transducer array (401) is located between the two drain troughs (202) to isolate external debris and drain accumulated oil.

6. The intelligent deviation correction device for a conveyor belt for instant noodle cakes according to claim 1, characterized in that, The base of the support slide (2) is provided with a cooling channel (203), which passes through the drag reduction zone (201) and is connected to a fluid cooling system to reduce the heat generated by the ultrasonic drag reduction module (4).

7. The intelligent deviation correction device for a conveyor belt for instant noodle cakes according to claim 1, characterized in that, The conveyor belt (1) adopts a double-layer composite structure. Its upper layer is a food-grade polymer bearing layer with high damping characteristics, which is used to absorb and attenuate the micron-level high-frequency vibration energy transmitted from the bottom up; its lower layer is a dense polymer sliding layer with high rigidity and acoustic reflection characteristics.

8. A method for intelligent deviation correction of a conveyor belt for instant noodle cakes, wherein the method utilizes an intelligent deviation correction device for an instant noodle cake conveyor belt as described in any one of claims 1-7, characterized in that, Includes the following steps: S1: The position detection module (3) collects visual feature data of the edge of the conveyor belt (1) in real time, and calculates the direction of deviation of the conveyor belt (1) from the center line and the real-time offset. S2: The control module starts or increases the output power of the corresponding ultrasonic transducer array (401) according to the direction of deviation, and excites ultrasonic extrusion air film between the conveyor belt (1) and the support slide (2), so that the sliding friction coefficients on both sides of the conveyor belt (1) and the support slide (2) change differently. S3: Utilizing the dynamic characteristics of the conveyor belt (1) deflecting towards the high resistance side under the action of running tension, driven by the friction difference on both sides of the conveyor belt (1), the conveyor belt (1) slides towards the center position of the support slide (2) to correct its deviation.

9. The intelligent deviation correction method for a conveyor belt for instant noodle cakes according to claim 8, characterized in that, In step S3, the output power control of the ultrasonic transducer array (401) includes a closed-loop power adjustment step: the control module receives the real-time offset, calculates the target correction output value through the PID adjustment algorithm, and converts the target correction output value into a PWM amplitude modulation signal to control the output power of the ultrasonic transducer array (401). The larger the real-time offset, the larger the output power of the ultrasonic transducer array (401), the thicker the ultrasonic air film generated, and the greater the decrease in the sliding friction coefficient between the support slide (2) and the conveyor belt (1).

10. The intelligent deviation correction method for a conveyor belt for instant noodle cakes according to claim 9, characterized in that, The control method further includes dynamic smooth attenuation and dead zone anti-vibration control steps: during the process of the conveyor belt (1) returning to the center position, as the real-time offset gradually decreases, the control module synchronously and continuously reduces the output power of the corresponding ultrasonic transducer array (401) to achieve stepless smooth correction to prevent over-adjustment; a preset allowable dead zone range is set, and when the real-time offset shrinks and enters the allowable dead zone range, the control module determines that the conveyor belt (1) has been centered and controls the ultrasonic transducer array (401) to synchronously enter a low-power balance standby state to maintain air film basic lubrication.

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