Feeding device and control method thereof

Abstract

The embodiment of the invention relates to the field of material conveyor structures, and discloses a feeding device and a control method thereof. A hopper and at least one bidirectional adjusting assembly; the bidirectional adjusting assembly is used for realizing linear motion and rotary motion; the material guide baffle is arranged at the outlet position of the hopper and fixedly connected with the end of the two-way adjusting assembly, and when the two-way adjusting assembly does linear motion, the material guide baffle synchronously moves along with the two-way adjusting assembly to achieve opening and closing, and then the opening degree of the outlet of the hopper is adjusted; one end of the beating assembly is fixed to the hopper, and the other end of the beating assembly makes contact with or is separated from the two-way adjusting assembly along with rotation movement of the two-way adjusting assembly; and the knocking assembly knocks the hopper through the reciprocating action of contact and separation, so that the hopper vibrates. According to the feeding device, the discharging amount adjusting and anti-blocking beating functions are achieved by controlling the same two-way adjusting assembly, the equipment structure is simplified, and manual work is not needed.

Description

Technical Field

[0001] This application relates to the field of material conveyor structure technology, and in particular to a feeding device and its control method. Background Technology

[0002] In modern industrial automated production, conveyors are the core equipment for material handling, and the feed hopper, as a key component of the conveyor, directly determines the smoothness and accuracy of material entering the conveying system. Traditional conveyor feed hoppers mostly adopt a fixed structure, which cannot dynamically adjust the feeding amount according to production needs, resulting in a lack of adjustment mechanism; they also rely on manual intervention to adjust the material flow (such as manual gates and vibrators), which is cumbersome, inefficient, and has poor control precision, making it difficult to meet the needs of intelligent and automated production lines. Summary of the Invention

[0003] The purpose of this application is to provide at least one feeding device and its control method, which can realize the feeding amount adjustment and anti-blocking knocking function through the same bidirectional adjustment component, simplify the equipment structure, reduce the number of driving components, and reduce labor and maintenance costs.

[0004] To address the aforementioned technical problems, at least one embodiment of this application provides a feeding device, comprising: chassis; The hopper, used to hold and discharge materials, is fixedly connected to the machine casing. At least one bidirectional adjustment component is fixed to the hopper via the housing; the bidirectional adjustment component is used to realize linear motion and rotational motion. A guide baffle is disposed at the outlet of the hopper and is fixedly connected to the end of the bidirectional adjustment component. When the bidirectional adjustment component moves in a straight line, the guide baffle moves synchronously with it to open and close, thereby adjusting the opening size of the hopper outlet. At least one striking component, one end of which is fixed to the hopper, and the other end of which periodically contacts or separates from the bidirectional adjustment component as the bidirectional adjustment component rotates; the striking component strikes the hopper through this reciprocating action of contact and separation, causing the hopper to vibrate.

[0005] In an optional embodiment, the bidirectional adjustment assembly includes two sets of stator assemblies and one set of mover assembly; the two sets of stator assemblies are coaxially mounted with the mover assembly as the axis, and a uniform air gap is left between each stator assembly and the mover assembly; each set of stator assemblies includes a linear stator assembly and a rotating stator assembly, which are assembled concentrically on top of each other; wherein, the linear stator assembly is used to generate a traveling wave magnetic field, which is used to drive the mover assembly to perform linear displacement; the rotating stator assembly is used to generate a rotating magnetic field, which is used to drive the mover assembly to perform rotational motion; the end of the mover assembly is fixedly connected to the guide baffle; both the linear stator assembly and the rotating stator assembly are fixed to the hopper through the housing.

[0006] In an optional embodiment, the linear stator assembly includes a linear stator core, linear embedded permanent magnets, and linear surface-mounted permanent magnets. The linear embedded permanent magnets are embedded between adjacent linear stator cores, and the linear embedded permanent magnets are axially magnetized with opposite magnetization directions for adjacent linear embedded permanent magnets. The linear surface-mounted permanent magnets are fitted onto the side of the linear stator core facing the air gap, and are radially magnetized with opposite magnetization directions for adjacent linear surface-mounted permanent magnets. The linear embedded permanent magnets and the linear surface-mounted permanent magnets form a series structure in the magnetic circuit.

[0007] In an optional embodiment, the linear stator assembly further includes: A linear armature winding is used to convert electrical energy into magnetic field energy, generating a traveling wave magnetic field that drives the linear motion of the mover assembly in the air gap between the linear stator assembly and the mover assembly.

[0008] In an optional embodiment, the rotating stator assembly includes a rotating stator core, a rotating internal permanent magnet, and a rotating surface-mount permanent magnet. The rotating internal permanent magnet is embedded between adjacent rotating stator cores, and the rotating internal permanent magnet is tangentially magnetized, with adjacent rotating internal permanent magnets having opposite magnetization directions. The rotating surface-mount permanent magnet is fitted onto the rotating stator core on the side facing the air gap, and is radially magnetized, with adjacent rotating surface-mount permanent magnets having opposite magnetization directions. The rotating internal permanent magnet and the rotating surface-mount permanent magnet form a series structure in the magnetic circuit.

[0009] In an optional embodiment, the rotating stator assembly further includes: A rotating armature winding is used to convert electrical energy into alternating magnetic field energy. This alternating magnetic field energy is superimposed with the constant magnetic field energy of the rotating built-in permanent magnet and the rotating surface-mount permanent magnet in the air gap between the rotating stator assembly and the mover assembly to form a spirally moving rotating magnetic field. This rotating magnetic field acts on the mover assembly and is converted into a rotating torque that drives the mover assembly to rotate through electromagnetic induction and the Ampere force effect.

[0010] In an optional embodiment, the motion actuator assembly includes a guide structure and two actuator modules. The two actuator modules are coaxially mounted through the guide structure. The motion actuator assembly drives the two actuator modules to move synchronously in the same or opposite directions in a linear motion along the axial direction through the traveling wave magnetic field to generate a displacement difference, thereby achieving linear displacement.

[0011] In an optional embodiment, each of the moving sub-modules is provided with a layered salient pole tooth structure distributed along the axial direction; each layer of the salient pole tooth structure includes a plurality of salient pole teeth evenly distributed along the circumference; the plurality of salient pole teeth are detachably connected to the moving sub-module; when the moving sub-module rotates, the salient pole teeth periodically contact or separate from the striking component.

[0012] In an optional embodiment, the striking assembly includes an elastic element, a connector, a conductor, and a striking element; One end of the elastic element is fixed to the hopper, and the other end is fixed to the connecting element; the striking element is fixed to the side of the connecting element facing the hopper; the conductive element is fixed to the other side of the connecting element. When the moving part assembly rotates, the conductive element and the bidirectional adjustment assembly periodically come into contact or separate.

[0013] At least one embodiment of this application also provides a control method for a feeding device, characterized in that, applied to the above-mentioned feeding device, it includes: Collect real-time material flow rate and material accumulation height in the hopper; Based on the difference between the material flow rate and the target feed flow rate, the bidirectional adjustment component is driven to perform linear motion, thereby driving the guide baffle to open and close to adjust the outlet opening of the hopper; When the material accumulation height reaches the material blockage determination threshold, the bidirectional adjustment component is driven to perform a rotational motion, and the bidirectional adjustment component and the striking component periodically come into contact or separate; the striking component strikes the hopper through the reciprocating action of contact and separation, causing the hopper to vibrate.

[0014] At least one embodiment of this application also provides an electronic device, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the above-described control method for the feeding device.

[0015] At least one embodiment of this application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described control method for the feeding device.

[0016] The feeding device and its control method provided in the embodiments of this application have two modes: linear motion and rotational motion. By controlling the linear motion displacement of the bidirectional adjustment component, the opening of the guide baffle can be quickly changed to avoid overloading or underloading of the hopper. By controlling the rotational motion function of the bidirectional adjustment component, the periodic action of the striking component can be directly triggered to specifically solve the problem of passive handling of material blockage. Thus, the feeding amount adjustment and anti-blockage striking function can be realized through the same bidirectional adjustment component, simplifying the equipment structure, reducing the number of driving components, and reducing maintenance costs. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, and these illustrative descriptions do not constitute a limitation on the embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of the discharge device provided in one embodiment of this application when the outlet is closed; Figure 2 This is a schematic diagram of the structure of a discharge device with its outlet open, provided in one embodiment of this application; Figure 3 This is a schematic diagram of the structure of a striking component in a discharge device according to an embodiment of this application; Figure 4 This is a schematic diagram of the composition of a bidirectional adjustment component in a discharge device according to an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a bidirectional adjustment component in a discharge device according to an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a moving part assembly in a discharge device according to an embodiment of this application; Figure 7 and Figure 8 This is a partial schematic diagram of a linear stator assembly in a discharge device according to an embodiment of this application; Figure 9 and Figure 10This is a partial schematic diagram of a rotating stator assembly in a discharge device according to an embodiment of this application; Figure 11 This is a flowchart of a control method for a discharge device provided in one embodiment of this application; Figure 12 This is a schematic diagram of the structure of an electronic device provided in another embodiment of this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this application to help readers better understand this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various changes and modifications based on the following embodiments. The division of the various embodiments below is for the convenience of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0020] To facilitate understanding of the embodiments of this application, relevant content regarding conventional feeding devices will be introduced first.

[0021] In industrial production material conveying scenarios, traditional feeding devices suffer from structural design flaws, specifically manifested in the following ways: Low precision in material feeding adjustment, unable to adapt to dynamic production needs: Traditional feeding hoppers are mostly fixed structures, relying on manual adjustment of the gate to control the material feeding. The adjustment process is lagging and cannot quickly match the flow requirements, which can easily lead to overload or underload of the conveying device.

[0022] Poor material compatibility easily leads to abnormal flow: Different materials have vastly different physical properties (particle size, density, moisture content, coefficient of friction). Fine powder materials are highly fluid and prone to "surge," while large materials are prone to jamming, and high-moisture materials are prone to sticking to the walls. Traditional feed hoppers lack targeted structural design, and the uniform channel size and feeding mode cannot adapt to multi-material scenarios. Problems such as material "bridging" (forming a stable arched structure inside the hopper, preventing material from falling) and sticking to the walls often occur, resulting in decreased feeding efficiency.

[0023] Material blockage handling is reactive, leading to a high risk of production line downtime: Traditional hopper anti-blockage relies on external vibrators with fixed-frequency vibration, which cannot be adjusted as needed or manually cleared. Blockage detection is often "after the fact," such as when the conveyor stops supplying material. After a blockage occurs, the vibrator may not be able to clear it due to insufficient force, and manual clearing requires stopping the machine, with a single downtime often exceeding 30 minutes, seriously affecting the continuity of the production line and reducing equipment utilization.

[0024] The structure is dispersed, and the maintenance and automation costs are high: The feeding adjustment (manual gate / electric push rod) and anti-blocking (independent vibrator) of the traditional feeding hopper are two independent systems, which need to be installed, debugged and maintained separately. The number of components is large, which not only occupies a lot of space, but is also prone to failure due to the coordination of multiple systems. For example, the conflict between the action of the vibrator and the gate leads to a decrease in reliability. At the same time, it is difficult to connect to the automated control system, which does not meet the "less manpower" requirements of modern industry.

[0025] This application proposes an integrated, adaptive feeding device and control method. A bidirectional adjustment component simultaneously performs feeding adjustment and anti-blocking drive functions. The guide baffle and striking component are linked around it, forming an integrated structure of a single drive source and multiple actuators. The bidirectional adjustment component enables precise adjustment of the feeding amount and coordinated control of the anti-blocking function, improving the adaptability and automation level of the feeding hopper. Specifically, this application aims to overcome the shortcomings of existing feeding hoppers, such as lack of flexible adjustment mechanisms, poor adaptability, and low control precision. The linear motion of the bidirectional adjustment component achieves dynamic adjustment of the feeding amount, while its rotational motion triggers the anti-blocking striking action. Combined with precise control of the control method, stable and uniform material feeding is achieved, avoiding blockages and improving the continuity and stability of the production line.

[0026] The following is a detailed description of the implementation details of the feeding device in this embodiment. The following content is only for the convenience of understanding and is not necessary for implementing this solution.

[0027] Example 1: like Figure 1 As shown, the feeding device provided in this embodiment includes: a housing 5, a hopper 1, at least one bidirectional adjustment component 2, a guide baffle 3, and at least one striking component 4.

[0028] The housing 5 serves as the basic support structure for the entire feeding device, and can be fixed at a designated position on the production line. The hopper 1 is welded or bolted to the housing 5 to ensure connection strength. The hopper 1 is used to carry materials and realize material discharge, and is the core carrier for materials to enter the conveying system. The baffles on both sides of the hopper 1 provide installation support for other functional components.

[0029] like Figure 1 As shown, two bidirectional adjustment components 2 are symmetrically installed on the baffles on both sides of the hopper 1. Both bidirectional adjustment components 2 are fixed to the hopper 1 through the housing 5. The bidirectional adjustment components 2 are used to realize linear motion and rotary motion, and are the core driving components for realizing material feeding adjustment and anti-blocking. When the bidirectional adjustment component realizes the linear motion function, it will extend or shorten along its longitudinal central axis. When the bidirectional adjustment component realizes the rotary motion function, it will rotate along its longitudinal central axis.

[0030] like Figure 1As shown, an outlet is provided at the bottom of the hopper 1. In this embodiment, two guide baffles 3 are symmetrically arranged and blocked at the outlet of the hopper 1. The two ends of the bidirectional adjustment component 2 are fixedly connected to the ends of the guide baffles 3 through the connecting frame 3.1. When the two bidirectional adjustment components 2 move in a straight line synchronously, the two guide baffles 3 move synchronously with them to open and close, thereby adjusting the opening size of the outlet of the hopper 1.

[0031] like Figure 2 As shown, an exemplary schematic diagram of the hopper outlet 6 when it is open is illustrated. Figure 1 and Figure 2 As shown, two bidirectional adjustment components 2 can be controlled to synchronously execute linear motion. When executing the linear motion function, the bidirectional adjustment component 2 can lengthen in the length direction, and the two guide baffles 3 move synchronously with it in opposite directions, causing the outlet 6 to open or enlarge. When executing the linear motion function, the bidirectional adjustment component can also shorten in the length direction, and the two guide baffles 3 move synchronously with it in opposite directions, causing the outlet 6 to shrink or close.

[0032] The tapping component 4 is located in a clog-prone area of ​​the hopper 1, such as at the corner of the bottom of the hopper 1. Figure 1 As shown, a striking component 4 is provided at each of the four corners of the bottom of the hopper 1. One end of each striking component 4 is fixed to the hopper 1, and the other end of the striking component 4 periodically contacts or separates from the bidirectional adjustment component 2 as the bidirectional adjustment component 2 rotates. The striking component 4 strikes the hopper 1 through the reciprocating action of contact and separation, causing the hopper 1 to vibrate.

[0033] In the feeding device provided in this application embodiment, the bidirectional adjustment component has two modes: linear motion and rotary motion. These two modes are based on the conversion of electrical energy into magnetic energy. The linear and rotary motions can be controlled independently. The linear motion function of the bidirectional adjustment component is directly linked to the opening and closing of the guide baffle, enabling continuous adjustment of the baffle's opening and closing amplitude. For dynamic flow switching issues, no manual intervention is required. The baffle opening can be quickly changed by controlling the linear motion displacement of the bidirectional adjustment component based on real-time material flow deviation, preventing the conveyor hopper from being overfilled or underfilled. The rotary motion function of the bidirectional adjustment component directly triggers the periodic action of the striking component. For passive handling of material blockages, the material accumulation height in the hopper can be monitored in real time via a blockage detection switch. Once the blockage height threshold is reached, the rotary motion is immediately triggered, and the striking component directly contacts the hopper sidewall. This results in high vibration energy transmission efficiency, clearing blockages within seconds without stopping the machine, demonstrating high blockage clearing efficiency. The feeding device provided in this application achieves both material quantity adjustment and anti-blockage striking functions through the same bidirectional adjustment component, simplifying the equipment structure, reducing the number of drive components, and lowering maintenance costs.

[0034] like Figure 3 As shown, in one embodiment, the striking assembly 4 includes an elastic element 4.1, a connecting element 4.2, a transmitting element 4.3, and a striking element 4.4. One end of the elastic element 4.1 is fixed to the hopper 1, and the other end is fixed to the connecting element 4.2; the striking element 4.4 is fixed to the side of the connecting element 4.2 facing the hopper 1, and is used to directly strike the side wall of the hopper 1; the transmitting element 4.3 is fixed to the other side of the connecting element 4.2, and when the moving part assembly 2.3 rotates, the transmitting element 4.3 periodically contacts or separates from the bidirectional adjustment assembly.

[0035] In this embodiment, the striking component 4 is an integrated structure consisting of an elastic element 4.1, a connecting element 4.2, a conductive element 4.3, and a striking element 4.4. The elastic element 4.1 is exemplarily a tension spring. The degree of deformation of the tension spring changes with the rotation speed of the bidirectional adjustment component 2. When the blockage is severe, the bidirectional adjustment component 2 rotates at a high speed, the spring tension is large, and the striking force is large when resetting. When the blockage is slight, the bidirectional adjustment component 2 rotates at a low speed, the spring tension is small, and the striking force is small, so as to avoid damaging the hopper 1 with excessive force or failing to clear the blockage due to insufficient force.

[0036] The transmission component 4.3 is exemplarily a paddle, and the striking component 4.4 is, for example, a striking hammer or a striking rod. The paddle is in direct contact with the bidirectional adjustment component 2, converting the rotational motion into linear reciprocating motion, which drives the striking hammer to accurately strike the side wall of the hopper 1. The striking point is concentrated in the easily blocked area, and the vibration energy is directly applied to the blocked material location. Compared with the dispersed vibration efficiency of the external vibrator, the efficiency is improved by 50%, and the unblocking success rate is increased from the traditional 60% to more than 95%.

[0037] For example, the elastic element 4.1 can also be a compression spring, and the transmission element 4.3 can also be a roller structure to reduce the frictional resistance when the bidirectional adjustment assembly 2 rotates.

[0038] Example 2: According to an exemplary embodiment, most of the components of the feeding device in this embodiment are the same as those in the above embodiments. The difference between this embodiment and the above embodiments is that, Figure 4 As shown, the bidirectional adjustment assembly 2 includes two sets of stator assemblies 22 and one set of mover assembly 2.3; the two sets of stator assemblies 22 are coaxially mounted with the mover assembly 2.3 as the axis, and a uniform air gap is left between each stator assembly 22 and the mover assembly 2.3. The two sets of stator assemblies 22 have the same structure and are distributed in a mirror symmetrical manner on the mover assembly 2.3.

[0039] like Figure 5 As shown, by way of example, both the stator assembly 22 and the mover assembly 2.3 are salient pole structures. The salient pole tooth structure includes multiple salient pole teeth evenly distributed along the circumference. The salient pole teeth are made of magnetically conductive material, such as silicon steel sheets stacked together.

[0040] like Figure 1and Figure 4 As shown, each stator assembly 22 includes a linear stator assembly 2.2 and a rotary stator assembly 2.1, which are assembled in a concentric circle configuration; both the linear stator assembly 2.2 and the rotary stator assembly 2.1 are fixed to the hopper 1 via the housing 5.

[0041] Among them, the linear stator assembly 2.2 is used to generate a traveling wave magnetic field along the longitudinal direction of the hopper, and the traveling wave magnetic field is used to drive the mover assembly 2.3 to perform linear displacement; the rotary stator assembly 2.1 is used to generate a rotating magnetic field, and the rotating magnetic field is used to drive the mover assembly 2.3 to perform rotational motion; combined with Figure 1 and Figure 4 As shown, the two ends of the moving part assembly 2.3 are fixedly connected to the two guide baffles 3 through the connecting frame 3.1 to realize the direct transmission of motion.

[0042] like Figure 1 and Figure 6 As shown, exemplarily, the mover assembly 2.3 includes a guide structure 2.3.2 and two mover modules 2.3.1. The two mover modules 2.3.1 are coaxially mounted through the guide structure 2.3.2. A traveling wave magnetic field drives the two mover modules 2.3.1 of the mover assembly 2.3 to move synchronously in the same or opposite directions in a linear motion along the axial direction of the guide structure 2.3.2, generating a displacement difference, thus enabling the bidirectional adjustment assembly 2 to achieve linear motion. The guide structure 2.3.2 can be a telescopic structure.

[0043] like Figure 6 As shown, each moving submodule 2.3.1 is provided with a layered salient pole tooth structure distributed along the axial direction. Each layer of the salient pole tooth structure includes multiple salient pole teeth evenly distributed along the circumference, and the multiple salient pole teeth are detachably connected to the moving submodule 2.3.1. Therefore, salient pole teeth with different tooth pitches and tooth heights can be replaced according to the material characteristics. Figure 3 As shown, when the moving part 2.3 rotates, the salient pole tooth comes into contact with or separates from the striking part 4, triggering the anti-blocking striking action.

[0044] like Figure 3 As shown, exemplarily, the striking assembly 44 consists of a tension spring, a connecting plate, a paddle, and a striking hammer, combined with... Figure 3 As shown, one end of the tension spring is fixed to the hopper 1, and the other end is fixed to the connector 4.2; the hammer is fixed on the side of the connecting plate facing the hopper 1, and is used to directly strike the side wall of the hopper 1; the paddle is fixed on the other side of the connector 4.2. When the moving part assembly 2.3 rotates, the paddle contacts or separates from the multiple salient teeth of the moving part assembly 2.3. The rotation of the salient teeth drives the connecting plate to move, thereby stretching or resetting the tension spring, triggering the anti-blocking striking action, and realizing the reciprocating striking of the hammer.

[0045] In one embodiment, such as Figure 7 and Figure 8 As shown, the linear stator assembly 2.2 includes a linear stator core 2.2.1, a linear embedded permanent magnet 2.2.2, and a linear surface-mounted permanent magnet 2.2.3. The linear stator core 2.2.1 is a U-shaped linear stator core. A linear embedded permanent magnet 2.2.2 is embedded between adjacent linear stator cores 2.2.1. The linear embedded permanent magnet 2.2.2 is axially magnetized, and the magnetization directions of two adjacent linear embedded permanent magnets 2.2.2 are opposite. The linear surface-mounted permanent magnet 2.2.3 is mounted on the side of the linear stator core 2.2.1 facing the air gap, and is radially magnetized. The magnetization directions of two adjacent linear surface-mounted permanent magnets 2.2.3 are also opposite. The linear embedded permanent magnet 2.2.2 and the linear surface-mounted permanent magnet 2.2.3 form a series structure in the magnetic circuit, enhancing the magnetic field strength and stability.

[0046] like Figure 5 and Figure 7 As shown, the linear stator assembly 2.2 further includes a linear armature winding 2.2.4, used to convert electrical energy into magnetic field energy, generating a traveling wave magnetic field in the air gap between the linear stator assembly 2.2 and the mover assembly 2.3 to drive the linear motion of the mover assembly 2.3. Specifically, the linear armature winding 2.2.4 includes two coils wound on the armature teeth formed by the linear stator core 2.2.1 and the linear built-in permanent magnet 2.2.2, with the two coils wound in opposite directions.

[0047] like Figure 5 As shown, exemplarily, the number of linear stator assemblies 2.2 is 3K, where K is a positive integer, and they are arranged concentrically and uniformly along the circumference. The distance between two adjacent linear stator assemblies 2.2 is wt / 3, where wt is the distance between two adjacent rotor teeth in the axial direction.

[0048] like Figure 1 , Figure 5 and Figure 7As shown, specifically, the process by which the linear stator assembly 2.2 drives the mover assembly 2.3 to perform linear motion, thereby opening and closing the guide baffle 3 and adjusting the outlet opening of the hopper 1, can be described as follows: When it is necessary to control the bidirectional adjustment assembly 2 to perform linear motion, an alternating current is supplied to the linear armature winding 2.2.4. According to the law of electromagnetic induction (Faraday's law), the linear stator core 2.2.1 and the permanent magnets (linear built-in permanent magnet 2.2.2 and linear surface-mounted permanent magnet 2.2.3) work together to generate a traveling wave magnetic field along the outlet direction of the hopper 1 in the air gap between the linear stator assembly 2.2 and the mover assembly 2.3. This can be understood as a linear magnetic field, and the direction of the magnetic field is translated along the movement trajectory of the guide baffle 3. The strength of this magnetic field is positively correlated with the magnitude of the current, providing a stable driving force for the movement of the mover assembly 2.3. Subsequently, the salient pole teeth of the mover assembly 2.3 interact with the traveling wave magnetic field in the air gap of the linear stator assembly 2.2. Specifically, when the traveling wave magnetic field passes through the salient pole teeth of the mover assembly 2.3, a current is induced in the conductor of the mover assembly 2.3 according to the law of electromagnetic force (left-hand rule). The current and the magnetic field generate an electromagnetic thrust along the direction of magnetic field translation. Since the rotational degree of freedom of the mover assembly 2.3 is constrained by the housing 5, only the linear motion degree of freedom is retained. The electromagnetic thrust directly drives the two separate mover modules 2.3.1 to perform synchronous linear motion in the same direction or opposite directions. For example, when the opening is increased, the two sets of mover modules 2.3.1 move outward synchronously; when the opening is decreased, they move inward synchronously. The guide baffle 3 and the moving component 2.3 are rigidly fixedly connected. The linear displacement of the moving component 2.3 is directly transmitted to the guide baffle 3. For example, when the moving component 2.3.1 moves away in the opposite direction, the guide baffle 3 opens to both sides of the hopper 1 along with the moving component 2.3.1, increasing the effective flow area at the outlet of the hopper 1 and increasing the discharge volume. When the moving component 2.3.1 moves closer in the same direction, the guide baffle 3 closes towards the center of the hopper 1 along with the moving component 2.3.1, decreasing the outlet flow area and reducing the discharge volume. Throughout the process, the discharge volume data can be collected in real time by detection devices (belt scale, coal detection device), and the current of the linear motion stator component 22 can be dynamically fine-tuned to control the displacement accuracy of the moving component 2.3.1. Ultimately, the continuous and precise adjustment of the outlet opening of the hopper 1 can be achieved, thereby avoiding the flow control problem of traditional fixed structures.

[0049] In one embodiment, such as Figure 9 and Figure 10As shown, the rotating stator assembly 2.1 includes a rotating stator core 2.1.1, a rotating built-in permanent magnet 2.1.2, and a rotating surface-mount permanent magnet 2.1.3. A rotating built-in permanent magnet 2.1.2 is embedded between adjacent rotating stator cores 2.1.1. The rotating built-in permanent magnet 2.1.2 is tangentially magnetized, and the magnetization directions of two adjacent rotating built-in permanent magnets 2.1.2 are opposite. The rotating surface-mount permanent magnet 2.1.3 is mounted on the side of the rotating stator core 2.1.1 facing the air gap, and is radially magnetized. The magnetization directions of two adjacent rotating surface-mount permanent magnets 2.1.3 are also opposite. The rotating built-in permanent magnet 2.1.2 and the rotating surface-mount permanent magnet 2.1.3 form a series structure on the magnetic circuit.

[0050] For example, the number of layers of the salient pole structure of the mover assembly 2.3 is equal to twice the number of linear built-in permanent magnets 2.2.2 and twice the number of rotating built-in permanent magnets 2.1.2; the salient pole teeth of each layer of the mover assembly 2.3 are separated by a central angle of π / Nr and by a phase difference of wt along the axial direction, where wt is the distance between two adjacent rotor teeth in the axial direction.

[0051] like Figure 5 and Figure 9 As shown, the rotating stator assembly 2.1 further includes a rotating armature winding 2.1.4, which converts electrical energy into alternating magnetic field energy. This alternating magnetic field energy is superimposed with the constant magnetic field energy of the rotating internal permanent magnet 2.1.2 and the rotating surface-mounted permanent magnet 2.1.3 in the air gap between the rotating stator assembly 2.1 and the mover assembly 2.3 to form a spirally moving rotating magnetic field. This rotating magnetic field acts on the mover assembly 2.3 and is converted into electromagnetic torque that drives the mover assembly 2.3 to rotate through electromagnetic induction and Ampere force effect.

[0052] Specifically, the rotating stator assembly 2.1 is the core of magnetic field generation. The tangential magnetic field of the rotating built-in permanent magnet 2.1.2 is conducted along the rotating stator core 2.1.1 to the rotating surface-mounted permanent magnet 2.1.3, and superimposed with the radial magnetic field of the rotating surface-mounted permanent magnet 2.1.3, forming a circumferentially distributed, alternating polarity basic constant magnetic field on the air gap side of the rotating stator assembly 2.1.2, providing a stable magnetic foundation for the subsequent generation of the rotating magnetic field. The process of the rotating stator assembly 2.1 driving the mover assembly 2.3 to perform rotational motion and associated anti-blocking function can include: when it is necessary to control the bidirectional adjustment assembly 2 to perform rotational motion, a three-phase alternating current is introduced into the rotating armature winding 2.1.4. The three-phase current forms a periodically changing alternating magnetic field in the winding. The three-phase alternating magnetic field is superimposed between the air gap of the rotating stator assembly 2.1 and the mover assembly 2.3, forming a spiral rotating magnetic field that moves in a circumferential direction. The magnetic field strength is positively correlated with the current amplitude, and the magnetic field characteristics can be precisely controlled by adjusting the current parameters. The rotating magnetic field cuts the salient pole teeth of the mover assembly 2.3, and the salient pole teeth of the mover assembly 2.3 induce current. The interaction between the induced current and the rotating magnetic field of the rotating stator assembly 2.1 follows Ampere's law, and finally converts the electromagnetic force into a rotational torque that drives the mover assembly 2.3 to rotate. When the mover assembly 2.3 rotates, its layered salient pole teeth periodically contact or separate from the conductive element 4.3 of the striking assembly 4, triggering the striking assembly 4 to achieve anti-blocking.

[0053] For example, such as Figure 3 As shown, when the moving component 2.3 rotates, its layered salient pole teeth periodically contact the conductor 4.3 of the striking component 4. During the contact phase, the salient pole teeth rotate with the moving component 2.3, pushing the conductor 4.3 and causing the connecting member 4.2 of the striking component 4 to move. The stretching elastic member 4.1 converts the rotational motion into linear stretching motion. During the separation phase, the salient pole teeth continue to rotate and disengage from the conductor 4.3. The elastic member 4.1 releases its elastic potential energy and resets, causing the connecting member 4.2 and the striking member 4.4 to move in opposite directions, striking the side wall of the hopper 1 to generate vibration and achieve anti-blocking.

[0054] For example, the rotational speed of the mover assembly 2.3 can be controlled by adjusting the current frequency of the rotating armature winding 2.1.4 to ensure that the anti-blocking action is adapted as needed. For example, when there is slight blockage, the frequency is reduced to decrease the knocking frequency; when there is severe blockage, the frequency is increased to increase the knocking number.

[0055] Example 3: This application also provides a control method for a feeding device, applicable to any of the aforementioned feeding devices. This control method can be applied to electronic devices with communication, computing, and data storage capabilities. For example, the control method is implemented by a PLC control unit, and its specific process can be as follows: Figure 11 As shown, it includes: Step 110: Collect the real-time material flow rate and material accumulation height in the hopper.

[0056] Before starting the feeding device, the PLC control unit, the detection module for collecting material flow status, and the bidirectional adjustment component can be initialized. The target feed flow rate of the material can be preset through the PLC control program, such as a preset flow rate, and material blockage judgment thresholds, such as the material accumulation height threshold in the hopper. Basic response parameters of the striking component can also be set, such as the striking interval after the first trigger.

[0057] In this step, the detection module installed on the feeding device, including a belt scale, a material detection device, and a blockage detection switch, can continuously collect the above two core data. For example, the belt scale can be used to detect the weight of the material on the conveying device used to transfer material to the hopper, and the material thickness detected by the material detection device can be combined to calculate the real-time material flow rate. Alternatively, the blockage detection switch can be used to collect the material accumulation height in the hopper in real time to determine whether the blockage height threshold has been reached.

[0058] For example, the material detection device can be installed on the conveying device and can detect the thickness of the material on the conveying device by means of sound, light or electrical signals. The blockage detection switch can be installed in the hopper and can detect whether the hopper is blocked.

[0059] Step 120: Based on the difference between the material flow rate and the preset flow rate, drive the bidirectional adjustment component to perform linear motion, thereby driving the guide baffle to open and close to adjust the outlet opening of the hopper.

[0060] In this step, the collected real-time material flow rate is compared with the target feed flow rate, and the flow difference Δ = real-time material flow rate - target feed flow rate is calculated. Based on the difference, the bidirectional adjustment component is controlled to execute linear motion. Specifically, if the flow difference Δ > 0, it means that the real-time material flow rate exceeds the preset value: the PLC sends a command to the linear stator component to control the linear armature winding to pass an alternating current in a specific direction, generating a traveling wave magnetic field along the closing direction of the hopper outlet. This drives the two moving modules of the mover component to synchronously move closer in the same direction, causing the guide baffle to reduce its opening and closing amplitude, narrowing the hopper outlet opening, and reducing the feed rate until the real-time material flow rate approaches the preset flow rate. If the flow difference Δ < 0, it means that the real-time material flow rate is lower than the preset value. The PLC adjusts the current direction of the linear armature winding to generate a traveling wave magnetic field along the opening direction of the hopper outlet. This drives the two moving modules of the mover component to synchronously move away in opposite directions, causing the guide baffle to increase its opening and closing amplitude, widening the hopper outlet opening, and increasing the feed rate until the real-time material flow rate matches the preset flow rate. If the flow difference Δ≈0, it means that the PLC maintains the current state of the bidirectional adjustment component, the guide baffle maintains the existing opening, and the material is fed stably.

[0061] Step 130: When the material accumulation height reaches the blockage height threshold, drive the bidirectional adjustment component to perform a rotational motion, and the bidirectional adjustment component comes into contact with or separates from the striking component; the striking component strikes the hopper through the reciprocating motion of contact and separation, causing the hopper to vibrate.

[0062] In this step, the anti-blocking process is triggered based on the collected material accumulation height data. Specifically, if the material accumulation height reaches the blockage height threshold, the PLC sends a command to the rotating stator assembly to control the alternating current to flow into the rotating armature winding, generating a rotating magnetic field to drive the mover assembly to rotate. The salient pole teeth of the mover assembly periodically contact or separate from the conductive parts of the striking assembly. When they contact each other, they push the conductive parts and connecting parts to move, stretching the elastic parts. When they separate, the elastic parts reset, causing the connecting parts and striking parts to move in the opposite direction, striking the side wall of the hopper to generate vibration and clear the blockage.

[0063] For example, the control method of the feeding device further includes, after the anti-blocking action is executed, the PLC collects the material accumulation height again. If the blockage has been resolved, the rotation of the bidirectional adjustment component is stopped and the flow regulation is restored. If the blockage has not been resolved, the rotation time of the bidirectional adjustment component is extended, or the tapping frequency is increased, or the transmission device is slowed down or stopped to prevent the material from continuing to accumulate and to trigger an alarm.

[0064] For example, material characteristics, such as material moisture and particle size, can also be collected, and the linear and / or rotational motion of the bidirectional adjustment component can be adjusted according to the material characteristics to adjust the opening of the guide baffle and / or the tapping frequency, thereby improving the anti-blocking and adjustment capabilities.

[0065] It is worth mentioning that all modules involved in this embodiment are logical modules. In practical applications, a logical unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. Furthermore, to highlight the innovative aspects of this application, this embodiment does not introduce units that are not closely related to solving the technical problems proposed in this application; however, this does not mean that other units are absent in this embodiment.

[0066] Example 4: Another embodiment of this application relates to an electronic device, such as... Figure 12 As shown, it includes: at least one processor 901; and a memory 902 communicatively connected to the at least one processor 901; wherein the memory 902 stores instructions executable by the at least one processor 901, the instructions being executed by the at least one processor 901 to enable the at least one processor 901 to execute the control method of the feeding device in the above embodiments.

[0067] The memory and processor are connected via a bus, which can include any number of interconnecting buses and bridges, connecting various circuits of one or more processors and memories. The bus can also connect various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and will not be described further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by the processor is transmitted over the wireless medium via an antenna, which further receives data and transmits it to the processor.

[0068] The processor manages the bus and general processing, and also provides various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory is used to store data used by the processor during operation.

[0069] Example 5: Another embodiment of this application relates to a computer-readable storage medium storing a computer program. When executed by a processor, the computer program implements the method embodiments described above.

[0070] That is, those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0071] Those skilled in the art will understand that the above embodiments are specific embodiments for implementing this application, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of this application.

Claims

1. A feeding device, characterized in that, include: chassis; The hopper, used to hold and discharge materials, is fixedly connected to the machine casing. At least one bidirectional adjustment component is fixed to the hopper via the housing; The bidirectional adjustment component is used to achieve linear and rotational motion; A guide baffle is disposed at the outlet of the hopper and is fixedly connected to the end of the bidirectional adjustment component. When the bidirectional adjustment component moves in a straight line, the guide baffle moves synchronously with it to open and close, thereby adjusting the opening size of the hopper outlet. At least one striking component, one end of which is fixed to the hopper, and the other end of which periodically contacts or separates from the bidirectional adjustment component as the bidirectional adjustment component rotates; the striking component strikes the hopper through this reciprocating action of contact and separation, causing the hopper to vibrate.

2. The feeding device according to claim 1, characterized in that, The bidirectional adjustment assembly includes two sets of stator assemblies and one set of mover assembly; the two sets of stator assemblies are coaxially mounted with the mover assembly as the axis, and a uniform air gap is left between each stator assembly and the mover assembly; each set of stator assembly includes a linear stator assembly and a rotating stator assembly, which are assembled concentrically on top of each other; wherein, the linear stator assembly is used to generate a traveling wave magnetic field, which is used to drive the mover assembly to perform linear displacement; the rotating stator assembly is used to generate a rotating magnetic field, which is used to drive the mover assembly to perform rotational motion; the end of the mover assembly is fixedly connected to the guide baffle; both the linear stator assembly and the rotating stator assembly are fixed to the hopper through the housing.

3. The feeding device according to claim 2, characterized in that, The linear stator assembly includes a linear stator core, linear embedded permanent magnets, and linear surface-mounted permanent magnets. The linear embedded permanent magnets are embedded between adjacent linear stator cores. The linear embedded permanent magnets are axially magnetized, and the magnetization directions of two adjacent linear embedded permanent magnets are opposite. The linear surface-mounted permanent magnets are fitted onto the side of the linear stator core facing the air gap, and are radially magnetized. The magnetization directions of two adjacent linear surface-mounted permanent magnets are opposite. The linear embedded permanent magnets and the linear surface-mounted permanent magnets form a series structure in the magnetic circuit.

4. The feeding device according to claim 3, characterized in that, The linear stator assembly further includes: A linear armature winding is used to convert electrical energy into magnetic field energy, generating a traveling wave magnetic field that drives the linear motion of the mover assembly in the air gap between the linear stator assembly and the mover assembly.

5. The feeding device according to claim 2, characterized in that, The rotating stator assembly includes a rotating stator core, a rotating internal permanent magnet, and a rotating surface-mount permanent magnet. The rotating internal permanent magnet is embedded between adjacent rotating stator cores. The rotating internal permanent magnet is tangentially magnetized, and the magnetization directions of two adjacent rotating internal permanent magnets are opposite. The rotating surface-mount permanent magnet is fitted onto the side of the rotating stator core facing the air gap, is radially magnetized, and the magnetization directions of two adjacent rotating surface-mount permanent magnets are opposite. The rotating internal permanent magnet and the rotating surface-mount permanent magnet form a series structure in the magnetic circuit.

6. The feeding device according to claim 5, characterized in that, The rotating stator assembly further includes: A rotating armature winding is used to convert electrical energy into alternating magnetic field energy. This alternating magnetic field energy is superimposed with the constant magnetic field energy of the rotating built-in permanent magnet and the rotating surface-mount permanent magnet in the air gap between the rotating stator assembly and the mover assembly to form a spirally moving rotating magnetic field. This rotating magnetic field acts on the mover assembly and is converted into a rotating torque that drives the mover assembly to rotate through electromagnetic induction and the Ampere force effect.

7. The feeding device according to any one of claims 2 to 6, characterized in that, The motion actuator assembly includes a guide structure and two actuator modules. The two actuator modules are coaxially mounted through the guide structure. The motion actuator assembly drives the two actuator modules to move synchronously in the same or opposite directions in a linear motion along the axial direction through the traveling wave magnetic field to generate a displacement difference, thereby achieving linear displacement.

8. The feeding device according to claim 7, characterized in that, Each of the moving sub-modules is provided with a layered salient pole tooth structure distributed along the axial direction; each layer of the salient pole tooth structure includes multiple salient pole teeth evenly distributed along the circumference; the multiple salient pole teeth are detachably connected to the moving sub-module; when the moving sub-module rotates, the salient pole teeth periodically contact or separate from the striking component.

9. The feeding device according to claim 1, characterized in that, The striking assembly includes an elastic element, a connecting element, a transmitting element, and a striking element; One end of the elastic element is fixed to the hopper, and the other end is fixed to the connecting element; the striking element is fixed to the side of the connecting element facing the hopper; the conductive element is fixed to the other side of the connecting element. When the moving part assembly rotates, the conductive element and the bidirectional adjustment assembly periodically come into contact or separate.

10. A control method for a feeding device, characterized in that, The feeding device as described in any one of claims 1 to 9 comprises: Collect real-time material flow rate and material accumulation height in the hopper; Based on the difference between the material flow rate and the target feed flow rate, the bidirectional adjustment component is driven to perform linear motion, thereby driving the guide baffle to open and close to adjust the outlet opening of the hopper; When the material accumulation height reaches the material blockage determination threshold, the bidirectional adjustment component is driven to perform a rotational motion, and the bidirectional adjustment component and the striking component periodically come into contact or separate; the striking component strikes the hopper through the reciprocating action of contact and separation, causing the hopper to vibrate.

Images